Class SatParameters

java.lang.Object
com.google.protobuf.AbstractMessageLite
com.google.protobuf.AbstractMessage
com.google.protobuf.GeneratedMessageV3
com.google.ortools.sat.SatParameters
All Implemented Interfaces:
SatParametersOrBuilder, com.google.protobuf.Message, com.google.protobuf.MessageLite, com.google.protobuf.MessageLiteOrBuilder, com.google.protobuf.MessageOrBuilder, java.io.Serializable

public final class SatParameters
extends com.google.protobuf.GeneratedMessageV3
implements SatParametersOrBuilder
 Contains the definitions for all the sat algorithm parameters and their
 default values.
 NEXT TAG: 188
 
Protobuf type operations_research.sat.SatParameters
See Also:
Serialized Form
  • Field Details

    • NAME_FIELD_NUMBER

      public static final int NAME_FIELD_NUMBER
      See Also:
      Constant Field Values
    • PREFERRED_VARIABLE_ORDER_FIELD_NUMBER

      public static final int PREFERRED_VARIABLE_ORDER_FIELD_NUMBER
      See Also:
      Constant Field Values
    • INITIAL_POLARITY_FIELD_NUMBER

      public static final int INITIAL_POLARITY_FIELD_NUMBER
      See Also:
      Constant Field Values
    • USE_PHASE_SAVING_FIELD_NUMBER

      public static final int USE_PHASE_SAVING_FIELD_NUMBER
      See Also:
      Constant Field Values
    • POLARITY_REPHASE_INCREMENT_FIELD_NUMBER

      public static final int POLARITY_REPHASE_INCREMENT_FIELD_NUMBER
      See Also:
      Constant Field Values
    • RANDOM_POLARITY_RATIO_FIELD_NUMBER

      public static final int RANDOM_POLARITY_RATIO_FIELD_NUMBER
      See Also:
      Constant Field Values
    • RANDOM_BRANCHES_RATIO_FIELD_NUMBER

      public static final int RANDOM_BRANCHES_RATIO_FIELD_NUMBER
      See Also:
      Constant Field Values
    • USE_ERWA_HEURISTIC_FIELD_NUMBER

      public static final int USE_ERWA_HEURISTIC_FIELD_NUMBER
      See Also:
      Constant Field Values
    • INITIAL_VARIABLES_ACTIVITY_FIELD_NUMBER

      public static final int INITIAL_VARIABLES_ACTIVITY_FIELD_NUMBER
      See Also:
      Constant Field Values
    • ALSO_BUMP_VARIABLES_IN_CONFLICT_REASONS_FIELD_NUMBER

      public static final int ALSO_BUMP_VARIABLES_IN_CONFLICT_REASONS_FIELD_NUMBER
      See Also:
      Constant Field Values
    • MINIMIZATION_ALGORITHM_FIELD_NUMBER

      public static final int MINIMIZATION_ALGORITHM_FIELD_NUMBER
      See Also:
      Constant Field Values
    • BINARY_MINIMIZATION_ALGORITHM_FIELD_NUMBER

      public static final int BINARY_MINIMIZATION_ALGORITHM_FIELD_NUMBER
      See Also:
      Constant Field Values
    • SUBSUMPTION_DURING_CONFLICT_ANALYSIS_FIELD_NUMBER

      public static final int SUBSUMPTION_DURING_CONFLICT_ANALYSIS_FIELD_NUMBER
      See Also:
      Constant Field Values
    • CLAUSE_CLEANUP_PERIOD_FIELD_NUMBER

      public static final int CLAUSE_CLEANUP_PERIOD_FIELD_NUMBER
      See Also:
      Constant Field Values
    • CLAUSE_CLEANUP_TARGET_FIELD_NUMBER

      public static final int CLAUSE_CLEANUP_TARGET_FIELD_NUMBER
      See Also:
      Constant Field Values
    • CLAUSE_CLEANUP_PROTECTION_FIELD_NUMBER

      public static final int CLAUSE_CLEANUP_PROTECTION_FIELD_NUMBER
      See Also:
      Constant Field Values
    • CLAUSE_CLEANUP_LBD_BOUND_FIELD_NUMBER

      public static final int CLAUSE_CLEANUP_LBD_BOUND_FIELD_NUMBER
      See Also:
      Constant Field Values
    • CLAUSE_CLEANUP_ORDERING_FIELD_NUMBER

      public static final int CLAUSE_CLEANUP_ORDERING_FIELD_NUMBER
      See Also:
      Constant Field Values
    • PB_CLEANUP_INCREMENT_FIELD_NUMBER

      public static final int PB_CLEANUP_INCREMENT_FIELD_NUMBER
      See Also:
      Constant Field Values
    • PB_CLEANUP_RATIO_FIELD_NUMBER

      public static final int PB_CLEANUP_RATIO_FIELD_NUMBER
      See Also:
      Constant Field Values
    • MINIMIZE_WITH_PROPAGATION_RESTART_PERIOD_FIELD_NUMBER

      public static final int MINIMIZE_WITH_PROPAGATION_RESTART_PERIOD_FIELD_NUMBER
      See Also:
      Constant Field Values
    • MINIMIZE_WITH_PROPAGATION_NUM_DECISIONS_FIELD_NUMBER

      public static final int MINIMIZE_WITH_PROPAGATION_NUM_DECISIONS_FIELD_NUMBER
      See Also:
      Constant Field Values
    • VARIABLE_ACTIVITY_DECAY_FIELD_NUMBER

      public static final int VARIABLE_ACTIVITY_DECAY_FIELD_NUMBER
      See Also:
      Constant Field Values
    • MAX_VARIABLE_ACTIVITY_VALUE_FIELD_NUMBER

      public static final int MAX_VARIABLE_ACTIVITY_VALUE_FIELD_NUMBER
      See Also:
      Constant Field Values
    • GLUCOSE_MAX_DECAY_FIELD_NUMBER

      public static final int GLUCOSE_MAX_DECAY_FIELD_NUMBER
      See Also:
      Constant Field Values
    • GLUCOSE_DECAY_INCREMENT_FIELD_NUMBER

      public static final int GLUCOSE_DECAY_INCREMENT_FIELD_NUMBER
      See Also:
      Constant Field Values
    • GLUCOSE_DECAY_INCREMENT_PERIOD_FIELD_NUMBER

      public static final int GLUCOSE_DECAY_INCREMENT_PERIOD_FIELD_NUMBER
      See Also:
      Constant Field Values
    • CLAUSE_ACTIVITY_DECAY_FIELD_NUMBER

      public static final int CLAUSE_ACTIVITY_DECAY_FIELD_NUMBER
      See Also:
      Constant Field Values
    • MAX_CLAUSE_ACTIVITY_VALUE_FIELD_NUMBER

      public static final int MAX_CLAUSE_ACTIVITY_VALUE_FIELD_NUMBER
      See Also:
      Constant Field Values
    • RESTART_ALGORITHMS_FIELD_NUMBER

      public static final int RESTART_ALGORITHMS_FIELD_NUMBER
      See Also:
      Constant Field Values
    • DEFAULT_RESTART_ALGORITHMS_FIELD_NUMBER

      public static final int DEFAULT_RESTART_ALGORITHMS_FIELD_NUMBER
      See Also:
      Constant Field Values
    • RESTART_PERIOD_FIELD_NUMBER

      public static final int RESTART_PERIOD_FIELD_NUMBER
      See Also:
      Constant Field Values
    • RESTART_RUNNING_WINDOW_SIZE_FIELD_NUMBER

      public static final int RESTART_RUNNING_WINDOW_SIZE_FIELD_NUMBER
      See Also:
      Constant Field Values
    • RESTART_DL_AVERAGE_RATIO_FIELD_NUMBER

      public static final int RESTART_DL_AVERAGE_RATIO_FIELD_NUMBER
      See Also:
      Constant Field Values
    • RESTART_LBD_AVERAGE_RATIO_FIELD_NUMBER

      public static final int RESTART_LBD_AVERAGE_RATIO_FIELD_NUMBER
      See Also:
      Constant Field Values
    • USE_BLOCKING_RESTART_FIELD_NUMBER

      public static final int USE_BLOCKING_RESTART_FIELD_NUMBER
      See Also:
      Constant Field Values
    • BLOCKING_RESTART_WINDOW_SIZE_FIELD_NUMBER

      public static final int BLOCKING_RESTART_WINDOW_SIZE_FIELD_NUMBER
      See Also:
      Constant Field Values
    • BLOCKING_RESTART_MULTIPLIER_FIELD_NUMBER

      public static final int BLOCKING_RESTART_MULTIPLIER_FIELD_NUMBER
      See Also:
      Constant Field Values
    • NUM_CONFLICTS_BEFORE_STRATEGY_CHANGES_FIELD_NUMBER

      public static final int NUM_CONFLICTS_BEFORE_STRATEGY_CHANGES_FIELD_NUMBER
      See Also:
      Constant Field Values
    • STRATEGY_CHANGE_INCREASE_RATIO_FIELD_NUMBER

      public static final int STRATEGY_CHANGE_INCREASE_RATIO_FIELD_NUMBER
      See Also:
      Constant Field Values
    • MAX_TIME_IN_SECONDS_FIELD_NUMBER

      public static final int MAX_TIME_IN_SECONDS_FIELD_NUMBER
      See Also:
      Constant Field Values
    • MAX_DETERMINISTIC_TIME_FIELD_NUMBER

      public static final int MAX_DETERMINISTIC_TIME_FIELD_NUMBER
      See Also:
      Constant Field Values
    • MAX_NUMBER_OF_CONFLICTS_FIELD_NUMBER

      public static final int MAX_NUMBER_OF_CONFLICTS_FIELD_NUMBER
      See Also:
      Constant Field Values
    • MAX_MEMORY_IN_MB_FIELD_NUMBER

      public static final int MAX_MEMORY_IN_MB_FIELD_NUMBER
      See Also:
      Constant Field Values
    • ABSOLUTE_GAP_LIMIT_FIELD_NUMBER

      public static final int ABSOLUTE_GAP_LIMIT_FIELD_NUMBER
      See Also:
      Constant Field Values
    • RELATIVE_GAP_LIMIT_FIELD_NUMBER

      public static final int RELATIVE_GAP_LIMIT_FIELD_NUMBER
      See Also:
      Constant Field Values
    • TREAT_BINARY_CLAUSES_SEPARATELY_FIELD_NUMBER

      public static final int TREAT_BINARY_CLAUSES_SEPARATELY_FIELD_NUMBER
      See Also:
      Constant Field Values
    • RANDOM_SEED_FIELD_NUMBER

      public static final int RANDOM_SEED_FIELD_NUMBER
      See Also:
      Constant Field Values
    • PERMUTE_VARIABLE_RANDOMLY_FIELD_NUMBER

      public static final int PERMUTE_VARIABLE_RANDOMLY_FIELD_NUMBER
      See Also:
      Constant Field Values
    • PERMUTE_PRESOLVE_CONSTRAINT_ORDER_FIELD_NUMBER

      public static final int PERMUTE_PRESOLVE_CONSTRAINT_ORDER_FIELD_NUMBER
      See Also:
      Constant Field Values
    • USE_ABSL_RANDOM_FIELD_NUMBER

      public static final int USE_ABSL_RANDOM_FIELD_NUMBER
      See Also:
      Constant Field Values
    • LOG_SEARCH_PROGRESS_FIELD_NUMBER

      public static final int LOG_SEARCH_PROGRESS_FIELD_NUMBER
      See Also:
      Constant Field Values
    • LOG_PREFIX_FIELD_NUMBER

      public static final int LOG_PREFIX_FIELD_NUMBER
      See Also:
      Constant Field Values
    • LOG_TO_STDOUT_FIELD_NUMBER

      public static final int LOG_TO_STDOUT_FIELD_NUMBER
      See Also:
      Constant Field Values
    • LOG_TO_RESPONSE_FIELD_NUMBER

      public static final int LOG_TO_RESPONSE_FIELD_NUMBER
      See Also:
      Constant Field Values
    • USE_PB_RESOLUTION_FIELD_NUMBER

      public static final int USE_PB_RESOLUTION_FIELD_NUMBER
      See Also:
      Constant Field Values
    • MINIMIZE_REDUCTION_DURING_PB_RESOLUTION_FIELD_NUMBER

      public static final int MINIMIZE_REDUCTION_DURING_PB_RESOLUTION_FIELD_NUMBER
      See Also:
      Constant Field Values
    • COUNT_ASSUMPTION_LEVELS_IN_LBD_FIELD_NUMBER

      public static final int COUNT_ASSUMPTION_LEVELS_IN_LBD_FIELD_NUMBER
      See Also:
      Constant Field Values
    • PRESOLVE_BVE_THRESHOLD_FIELD_NUMBER

      public static final int PRESOLVE_BVE_THRESHOLD_FIELD_NUMBER
      See Also:
      Constant Field Values
    • PRESOLVE_BVE_CLAUSE_WEIGHT_FIELD_NUMBER

      public static final int PRESOLVE_BVE_CLAUSE_WEIGHT_FIELD_NUMBER
      See Also:
      Constant Field Values
    • PRESOLVE_PROBING_DETERMINISTIC_TIME_LIMIT_FIELD_NUMBER

      public static final int PRESOLVE_PROBING_DETERMINISTIC_TIME_LIMIT_FIELD_NUMBER
      See Also:
      Constant Field Values
    • PRESOLVE_BLOCKED_CLAUSE_FIELD_NUMBER

      public static final int PRESOLVE_BLOCKED_CLAUSE_FIELD_NUMBER
      See Also:
      Constant Field Values
    • PRESOLVE_USE_BVA_FIELD_NUMBER

      public static final int PRESOLVE_USE_BVA_FIELD_NUMBER
      See Also:
      Constant Field Values
    • PRESOLVE_BVA_THRESHOLD_FIELD_NUMBER

      public static final int PRESOLVE_BVA_THRESHOLD_FIELD_NUMBER
      See Also:
      Constant Field Values
    • MAX_PRESOLVE_ITERATIONS_FIELD_NUMBER

      public static final int MAX_PRESOLVE_ITERATIONS_FIELD_NUMBER
      See Also:
      Constant Field Values
    • CP_MODEL_PRESOLVE_FIELD_NUMBER

      public static final int CP_MODEL_PRESOLVE_FIELD_NUMBER
      See Also:
      Constant Field Values
    • CP_MODEL_POSTSOLVE_WITH_FULL_SOLVER_FIELD_NUMBER

      public static final int CP_MODEL_POSTSOLVE_WITH_FULL_SOLVER_FIELD_NUMBER
      See Also:
      Constant Field Values
    • CP_MODEL_MAX_NUM_PRESOLVE_OPERATIONS_FIELD_NUMBER

      public static final int CP_MODEL_MAX_NUM_PRESOLVE_OPERATIONS_FIELD_NUMBER
      See Also:
      Constant Field Values
    • CP_MODEL_PROBING_LEVEL_FIELD_NUMBER

      public static final int CP_MODEL_PROBING_LEVEL_FIELD_NUMBER
      See Also:
      Constant Field Values
    • CP_MODEL_USE_SAT_PRESOLVE_FIELD_NUMBER

      public static final int CP_MODEL_USE_SAT_PRESOLVE_FIELD_NUMBER
      See Also:
      Constant Field Values
    • USE_SAT_INPROCESSING_FIELD_NUMBER

      public static final int USE_SAT_INPROCESSING_FIELD_NUMBER
      See Also:
      Constant Field Values
    • EXPAND_ELEMENT_CONSTRAINTS_FIELD_NUMBER

      public static final int EXPAND_ELEMENT_CONSTRAINTS_FIELD_NUMBER
      See Also:
      Constant Field Values
    • EXPAND_AUTOMATON_CONSTRAINTS_FIELD_NUMBER

      public static final int EXPAND_AUTOMATON_CONSTRAINTS_FIELD_NUMBER
      See Also:
      Constant Field Values
    • EXPAND_TABLE_CONSTRAINTS_FIELD_NUMBER

      public static final int EXPAND_TABLE_CONSTRAINTS_FIELD_NUMBER
      See Also:
      Constant Field Values
    • EXPAND_ALLDIFF_CONSTRAINTS_FIELD_NUMBER

      public static final int EXPAND_ALLDIFF_CONSTRAINTS_FIELD_NUMBER
      See Also:
      Constant Field Values
    • EXPAND_RESERVOIR_CONSTRAINTS_FIELD_NUMBER

      public static final int EXPAND_RESERVOIR_CONSTRAINTS_FIELD_NUMBER
      See Also:
      Constant Field Values
    • DISABLE_CONSTRAINT_EXPANSION_FIELD_NUMBER

      public static final int DISABLE_CONSTRAINT_EXPANSION_FIELD_NUMBER
      See Also:
      Constant Field Values
    • MERGE_NO_OVERLAP_WORK_LIMIT_FIELD_NUMBER

      public static final int MERGE_NO_OVERLAP_WORK_LIMIT_FIELD_NUMBER
      See Also:
      Constant Field Values
    • MERGE_AT_MOST_ONE_WORK_LIMIT_FIELD_NUMBER

      public static final int MERGE_AT_MOST_ONE_WORK_LIMIT_FIELD_NUMBER
      See Also:
      Constant Field Values
    • PRESOLVE_SUBSTITUTION_LEVEL_FIELD_NUMBER

      public static final int PRESOLVE_SUBSTITUTION_LEVEL_FIELD_NUMBER
      See Also:
      Constant Field Values
    • PRESOLVE_EXTRACT_INTEGER_ENFORCEMENT_FIELD_NUMBER

      public static final int PRESOLVE_EXTRACT_INTEGER_ENFORCEMENT_FIELD_NUMBER
      See Also:
      Constant Field Values
    • USE_OPTIMIZATION_HINTS_FIELD_NUMBER

      public static final int USE_OPTIMIZATION_HINTS_FIELD_NUMBER
      See Also:
      Constant Field Values
    • MINIMIZE_CORE_FIELD_NUMBER

      public static final int MINIMIZE_CORE_FIELD_NUMBER
      See Also:
      Constant Field Values
    • FIND_MULTIPLE_CORES_FIELD_NUMBER

      public static final int FIND_MULTIPLE_CORES_FIELD_NUMBER
      See Also:
      Constant Field Values
    • COVER_OPTIMIZATION_FIELD_NUMBER

      public static final int COVER_OPTIMIZATION_FIELD_NUMBER
      See Also:
      Constant Field Values
    • MAX_SAT_ASSUMPTION_ORDER_FIELD_NUMBER

      public static final int MAX_SAT_ASSUMPTION_ORDER_FIELD_NUMBER
      See Also:
      Constant Field Values
    • MAX_SAT_REVERSE_ASSUMPTION_ORDER_FIELD_NUMBER

      public static final int MAX_SAT_REVERSE_ASSUMPTION_ORDER_FIELD_NUMBER
      See Also:
      Constant Field Values
    • MAX_SAT_STRATIFICATION_FIELD_NUMBER

      public static final int MAX_SAT_STRATIFICATION_FIELD_NUMBER
      See Also:
      Constant Field Values
    • USE_PRECEDENCES_IN_DISJUNCTIVE_CONSTRAINT_FIELD_NUMBER

      public static final int USE_PRECEDENCES_IN_DISJUNCTIVE_CONSTRAINT_FIELD_NUMBER
      See Also:
      Constant Field Values
    • USE_OVERLOAD_CHECKER_IN_CUMULATIVE_CONSTRAINT_FIELD_NUMBER

      public static final int USE_OVERLOAD_CHECKER_IN_CUMULATIVE_CONSTRAINT_FIELD_NUMBER
      See Also:
      Constant Field Values
    • USE_TIMETABLE_EDGE_FINDING_IN_CUMULATIVE_CONSTRAINT_FIELD_NUMBER

      public static final int USE_TIMETABLE_EDGE_FINDING_IN_CUMULATIVE_CONSTRAINT_FIELD_NUMBER
      See Also:
      Constant Field Values
    • USE_DISJUNCTIVE_CONSTRAINT_IN_CUMULATIVE_CONSTRAINT_FIELD_NUMBER

      public static final int USE_DISJUNCTIVE_CONSTRAINT_IN_CUMULATIVE_CONSTRAINT_FIELD_NUMBER
      See Also:
      Constant Field Values
    • LINEARIZATION_LEVEL_FIELD_NUMBER

      public static final int LINEARIZATION_LEVEL_FIELD_NUMBER
      See Also:
      Constant Field Values
    • BOOLEAN_ENCODING_LEVEL_FIELD_NUMBER

      public static final int BOOLEAN_ENCODING_LEVEL_FIELD_NUMBER
      See Also:
      Constant Field Values
    • MAX_NUM_CUTS_FIELD_NUMBER

      public static final int MAX_NUM_CUTS_FIELD_NUMBER
      See Also:
      Constant Field Values
    • ONLY_ADD_CUTS_AT_LEVEL_ZERO_FIELD_NUMBER

      public static final int ONLY_ADD_CUTS_AT_LEVEL_ZERO_FIELD_NUMBER
      See Also:
      Constant Field Values
    • ADD_KNAPSACK_CUTS_FIELD_NUMBER

      public static final int ADD_KNAPSACK_CUTS_FIELD_NUMBER
      See Also:
      Constant Field Values
    • ADD_CG_CUTS_FIELD_NUMBER

      public static final int ADD_CG_CUTS_FIELD_NUMBER
      See Also:
      Constant Field Values
    • ADD_MIR_CUTS_FIELD_NUMBER

      public static final int ADD_MIR_CUTS_FIELD_NUMBER
      See Also:
      Constant Field Values
    • ADD_ZERO_HALF_CUTS_FIELD_NUMBER

      public static final int ADD_ZERO_HALF_CUTS_FIELD_NUMBER
      See Also:
      Constant Field Values
    • ADD_CLIQUE_CUTS_FIELD_NUMBER

      public static final int ADD_CLIQUE_CUTS_FIELD_NUMBER
      See Also:
      Constant Field Values
    • MAX_ALL_DIFF_CUT_SIZE_FIELD_NUMBER

      public static final int MAX_ALL_DIFF_CUT_SIZE_FIELD_NUMBER
      See Also:
      Constant Field Values
    • ADD_LIN_MAX_CUTS_FIELD_NUMBER

      public static final int ADD_LIN_MAX_CUTS_FIELD_NUMBER
      See Also:
      Constant Field Values
    • MAX_INTEGER_ROUNDING_SCALING_FIELD_NUMBER

      public static final int MAX_INTEGER_ROUNDING_SCALING_FIELD_NUMBER
      See Also:
      Constant Field Values
    • ADD_LP_CONSTRAINTS_LAZILY_FIELD_NUMBER

      public static final int ADD_LP_CONSTRAINTS_LAZILY_FIELD_NUMBER
      See Also:
      Constant Field Values
    • MIN_ORTHOGONALITY_FOR_LP_CONSTRAINTS_FIELD_NUMBER

      public static final int MIN_ORTHOGONALITY_FOR_LP_CONSTRAINTS_FIELD_NUMBER
      See Also:
      Constant Field Values
    • MAX_CUT_ROUNDS_AT_LEVEL_ZERO_FIELD_NUMBER

      public static final int MAX_CUT_ROUNDS_AT_LEVEL_ZERO_FIELD_NUMBER
      See Also:
      Constant Field Values
    • MAX_CONSECUTIVE_INACTIVE_COUNT_FIELD_NUMBER

      public static final int MAX_CONSECUTIVE_INACTIVE_COUNT_FIELD_NUMBER
      See Also:
      Constant Field Values
    • CUT_MAX_ACTIVE_COUNT_VALUE_FIELD_NUMBER

      public static final int CUT_MAX_ACTIVE_COUNT_VALUE_FIELD_NUMBER
      See Also:
      Constant Field Values
    • CUT_ACTIVE_COUNT_DECAY_FIELD_NUMBER

      public static final int CUT_ACTIVE_COUNT_DECAY_FIELD_NUMBER
      See Also:
      Constant Field Values
    • CUT_CLEANUP_TARGET_FIELD_NUMBER

      public static final int CUT_CLEANUP_TARGET_FIELD_NUMBER
      See Also:
      Constant Field Values
    • NEW_CONSTRAINTS_BATCH_SIZE_FIELD_NUMBER

      public static final int NEW_CONSTRAINTS_BATCH_SIZE_FIELD_NUMBER
      See Also:
      Constant Field Values
    • SEARCH_BRANCHING_FIELD_NUMBER

      public static final int SEARCH_BRANCHING_FIELD_NUMBER
      See Also:
      Constant Field Values
    • HINT_CONFLICT_LIMIT_FIELD_NUMBER

      public static final int HINT_CONFLICT_LIMIT_FIELD_NUMBER
      See Also:
      Constant Field Values
    • REPAIR_HINT_FIELD_NUMBER

      public static final int REPAIR_HINT_FIELD_NUMBER
      See Also:
      Constant Field Values
    • EXPLOIT_INTEGER_LP_SOLUTION_FIELD_NUMBER

      public static final int EXPLOIT_INTEGER_LP_SOLUTION_FIELD_NUMBER
      See Also:
      Constant Field Values
    • EXPLOIT_ALL_LP_SOLUTION_FIELD_NUMBER

      public static final int EXPLOIT_ALL_LP_SOLUTION_FIELD_NUMBER
      See Also:
      Constant Field Values
    • EXPLOIT_BEST_SOLUTION_FIELD_NUMBER

      public static final int EXPLOIT_BEST_SOLUTION_FIELD_NUMBER
      See Also:
      Constant Field Values
    • EXPLOIT_RELAXATION_SOLUTION_FIELD_NUMBER

      public static final int EXPLOIT_RELAXATION_SOLUTION_FIELD_NUMBER
      See Also:
      Constant Field Values
    • EXPLOIT_OBJECTIVE_FIELD_NUMBER

      public static final int EXPLOIT_OBJECTIVE_FIELD_NUMBER
      See Also:
      Constant Field Values
    • PROBING_PERIOD_AT_ROOT_FIELD_NUMBER

      public static final int PROBING_PERIOD_AT_ROOT_FIELD_NUMBER
      See Also:
      Constant Field Values
    • USE_PROBING_SEARCH_FIELD_NUMBER

      public static final int USE_PROBING_SEARCH_FIELD_NUMBER
      See Also:
      Constant Field Values
    • PSEUDO_COST_RELIABILITY_THRESHOLD_FIELD_NUMBER

      public static final int PSEUDO_COST_RELIABILITY_THRESHOLD_FIELD_NUMBER
      See Also:
      Constant Field Values
    • OPTIMIZE_WITH_CORE_FIELD_NUMBER

      public static final int OPTIMIZE_WITH_CORE_FIELD_NUMBER
      See Also:
      Constant Field Values
    • BINARY_SEARCH_NUM_CONFLICTS_FIELD_NUMBER

      public static final int BINARY_SEARCH_NUM_CONFLICTS_FIELD_NUMBER
      See Also:
      Constant Field Values
    • OPTIMIZE_WITH_MAX_HS_FIELD_NUMBER

      public static final int OPTIMIZE_WITH_MAX_HS_FIELD_NUMBER
      See Also:
      Constant Field Values
    • ENUMERATE_ALL_SOLUTIONS_FIELD_NUMBER

      public static final int ENUMERATE_ALL_SOLUTIONS_FIELD_NUMBER
      See Also:
      Constant Field Values
    • KEEP_ALL_FEASIBLE_SOLUTIONS_IN_PRESOLVE_FIELD_NUMBER

      public static final int KEEP_ALL_FEASIBLE_SOLUTIONS_IN_PRESOLVE_FIELD_NUMBER
      See Also:
      Constant Field Values
    • FILL_TIGHTENED_DOMAINS_IN_RESPONSE_FIELD_NUMBER

      public static final int FILL_TIGHTENED_DOMAINS_IN_RESPONSE_FIELD_NUMBER
      See Also:
      Constant Field Values
    • INSTANTIATE_ALL_VARIABLES_FIELD_NUMBER

      public static final int INSTANTIATE_ALL_VARIABLES_FIELD_NUMBER
      See Also:
      Constant Field Values
    • AUTO_DETECT_GREATER_THAN_AT_LEAST_ONE_OF_FIELD_NUMBER

      public static final int AUTO_DETECT_GREATER_THAN_AT_LEAST_ONE_OF_FIELD_NUMBER
      See Also:
      Constant Field Values
    • STOP_AFTER_FIRST_SOLUTION_FIELD_NUMBER

      public static final int STOP_AFTER_FIRST_SOLUTION_FIELD_NUMBER
      See Also:
      Constant Field Values
    • STOP_AFTER_PRESOLVE_FIELD_NUMBER

      public static final int STOP_AFTER_PRESOLVE_FIELD_NUMBER
      See Also:
      Constant Field Values
    • NUM_SEARCH_WORKERS_FIELD_NUMBER

      public static final int NUM_SEARCH_WORKERS_FIELD_NUMBER
      See Also:
      Constant Field Values
    • INTERLEAVE_SEARCH_FIELD_NUMBER

      public static final int INTERLEAVE_SEARCH_FIELD_NUMBER
      See Also:
      Constant Field Values
    • INTERLEAVE_BATCH_SIZE_FIELD_NUMBER

      public static final int INTERLEAVE_BATCH_SIZE_FIELD_NUMBER
      See Also:
      Constant Field Values
    • REDUCE_MEMORY_USAGE_IN_INTERLEAVE_MODE_FIELD_NUMBER

      public static final int REDUCE_MEMORY_USAGE_IN_INTERLEAVE_MODE_FIELD_NUMBER
      See Also:
      Constant Field Values
    • SHARE_OBJECTIVE_BOUNDS_FIELD_NUMBER

      public static final int SHARE_OBJECTIVE_BOUNDS_FIELD_NUMBER
      See Also:
      Constant Field Values
    • SHARE_LEVEL_ZERO_BOUNDS_FIELD_NUMBER

      public static final int SHARE_LEVEL_ZERO_BOUNDS_FIELD_NUMBER
      See Also:
      Constant Field Values
    • USE_LNS_ONLY_FIELD_NUMBER

      public static final int USE_LNS_ONLY_FIELD_NUMBER
      See Also:
      Constant Field Values
    • LNS_FOCUS_ON_DECISION_VARIABLES_FIELD_NUMBER

      public static final int LNS_FOCUS_ON_DECISION_VARIABLES_FIELD_NUMBER
      See Also:
      Constant Field Values
    • LNS_EXPAND_INTERVALS_IN_CONSTRAINT_GRAPH_FIELD_NUMBER

      public static final int LNS_EXPAND_INTERVALS_IN_CONSTRAINT_GRAPH_FIELD_NUMBER
      See Also:
      Constant Field Values
    • USE_RINS_LNS_FIELD_NUMBER

      public static final int USE_RINS_LNS_FIELD_NUMBER
      See Also:
      Constant Field Values
    • USE_FEASIBILITY_PUMP_FIELD_NUMBER

      public static final int USE_FEASIBILITY_PUMP_FIELD_NUMBER
      See Also:
      Constant Field Values
    • FP_ROUNDING_FIELD_NUMBER

      public static final int FP_ROUNDING_FIELD_NUMBER
      See Also:
      Constant Field Values
    • USE_RELAXATION_LNS_FIELD_NUMBER

      public static final int USE_RELAXATION_LNS_FIELD_NUMBER
      See Also:
      Constant Field Values
    • DIVERSIFY_LNS_PARAMS_FIELD_NUMBER

      public static final int DIVERSIFY_LNS_PARAMS_FIELD_NUMBER
      See Also:
      Constant Field Values
    • RANDOMIZE_SEARCH_FIELD_NUMBER

      public static final int RANDOMIZE_SEARCH_FIELD_NUMBER
      See Also:
      Constant Field Values
    • SEARCH_RANDOMIZATION_TOLERANCE_FIELD_NUMBER

      public static final int SEARCH_RANDOMIZATION_TOLERANCE_FIELD_NUMBER
      See Also:
      Constant Field Values
    • USE_OPTIONAL_VARIABLES_FIELD_NUMBER

      public static final int USE_OPTIONAL_VARIABLES_FIELD_NUMBER
      See Also:
      Constant Field Values
    • USE_EXACT_LP_REASON_FIELD_NUMBER

      public static final int USE_EXACT_LP_REASON_FIELD_NUMBER
      See Also:
      Constant Field Values
    • USE_BRANCHING_IN_LP_FIELD_NUMBER

      public static final int USE_BRANCHING_IN_LP_FIELD_NUMBER
      See Also:
      Constant Field Values
    • USE_COMBINED_NO_OVERLAP_FIELD_NUMBER

      public static final int USE_COMBINED_NO_OVERLAP_FIELD_NUMBER
      See Also:
      Constant Field Values
    • CATCH_SIGINT_SIGNAL_FIELD_NUMBER

      public static final int CATCH_SIGINT_SIGNAL_FIELD_NUMBER
      See Also:
      Constant Field Values
    • USE_IMPLIED_BOUNDS_FIELD_NUMBER

      public static final int USE_IMPLIED_BOUNDS_FIELD_NUMBER
      See Also:
      Constant Field Values
    • POLISH_LP_SOLUTION_FIELD_NUMBER

      public static final int POLISH_LP_SOLUTION_FIELD_NUMBER
      See Also:
      Constant Field Values
    • CONVERT_INTERVALS_FIELD_NUMBER

      public static final int CONVERT_INTERVALS_FIELD_NUMBER
      See Also:
      Constant Field Values
    • SYMMETRY_LEVEL_FIELD_NUMBER

      public static final int SYMMETRY_LEVEL_FIELD_NUMBER
      See Also:
      Constant Field Values
    • MIP_MAX_BOUND_FIELD_NUMBER

      public static final int MIP_MAX_BOUND_FIELD_NUMBER
      See Also:
      Constant Field Values
    • MIP_VAR_SCALING_FIELD_NUMBER

      public static final int MIP_VAR_SCALING_FIELD_NUMBER
      See Also:
      Constant Field Values
    • MIP_AUTOMATICALLY_SCALE_VARIABLES_FIELD_NUMBER

      public static final int MIP_AUTOMATICALLY_SCALE_VARIABLES_FIELD_NUMBER
      See Also:
      Constant Field Values
    • MIP_WANTED_PRECISION_FIELD_NUMBER

      public static final int MIP_WANTED_PRECISION_FIELD_NUMBER
      See Also:
      Constant Field Values
    • MIP_MAX_ACTIVITY_EXPONENT_FIELD_NUMBER

      public static final int MIP_MAX_ACTIVITY_EXPONENT_FIELD_NUMBER
      See Also:
      Constant Field Values
    • MIP_CHECK_PRECISION_FIELD_NUMBER

      public static final int MIP_CHECK_PRECISION_FIELD_NUMBER
      See Also:
      Constant Field Values
    • PARSER

      @Deprecated public static final com.google.protobuf.Parser<SatParameters> PARSER
      Deprecated.
  • Method Details

    • newInstance

      protected java.lang.Object newInstance​(com.google.protobuf.GeneratedMessageV3.UnusedPrivateParameter unused)
      Overrides:
      newInstance in class com.google.protobuf.GeneratedMessageV3
    • getUnknownFields

      public final com.google.protobuf.UnknownFieldSet getUnknownFields()
      Specified by:
      getUnknownFields in interface com.google.protobuf.MessageOrBuilder
      Overrides:
      getUnknownFields in class com.google.protobuf.GeneratedMessageV3
    • getDescriptor

      public static final com.google.protobuf.Descriptors.Descriptor getDescriptor()
    • internalGetFieldAccessorTable

      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable internalGetFieldAccessorTable()
      Specified by:
      internalGetFieldAccessorTable in class com.google.protobuf.GeneratedMessageV3
    • hasName

      public boolean hasName()
       In some context, like in a portfolio of search, it makes sense to name a
       given parameters set for logging purpose.
       
      optional string name = 171 [default = ""];
      Specified by:
      hasName in interface SatParametersOrBuilder
      Returns:
      Whether the name field is set.
    • getName

      public java.lang.String getName()
       In some context, like in a portfolio of search, it makes sense to name a
       given parameters set for logging purpose.
       
      optional string name = 171 [default = ""];
      Specified by:
      getName in interface SatParametersOrBuilder
      Returns:
      The name.
    • getNameBytes

      public com.google.protobuf.ByteString getNameBytes()
       In some context, like in a portfolio of search, it makes sense to name a
       given parameters set for logging purpose.
       
      optional string name = 171 [default = ""];
      Specified by:
      getNameBytes in interface SatParametersOrBuilder
      Returns:
      The bytes for name.
    • hasPreferredVariableOrder

      public boolean hasPreferredVariableOrder()
      optional .operations_research.sat.SatParameters.VariableOrder preferred_variable_order = 1 [default = IN_ORDER];
      Specified by:
      hasPreferredVariableOrder in interface SatParametersOrBuilder
      Returns:
      Whether the preferredVariableOrder field is set.
    • getPreferredVariableOrder

      public SatParameters.VariableOrder getPreferredVariableOrder()
      optional .operations_research.sat.SatParameters.VariableOrder preferred_variable_order = 1 [default = IN_ORDER];
      Specified by:
      getPreferredVariableOrder in interface SatParametersOrBuilder
      Returns:
      The preferredVariableOrder.
    • hasInitialPolarity

      public boolean hasInitialPolarity()
      optional .operations_research.sat.SatParameters.Polarity initial_polarity = 2 [default = POLARITY_FALSE];
      Specified by:
      hasInitialPolarity in interface SatParametersOrBuilder
      Returns:
      Whether the initialPolarity field is set.
    • getInitialPolarity

      public SatParameters.Polarity getInitialPolarity()
      optional .operations_research.sat.SatParameters.Polarity initial_polarity = 2 [default = POLARITY_FALSE];
      Specified by:
      getInitialPolarity in interface SatParametersOrBuilder
      Returns:
      The initialPolarity.
    • hasUsePhaseSaving

      public boolean hasUsePhaseSaving()
       If this is true, then the polarity of a variable will be the last value it
       was assigned to, or its default polarity if it was never assigned since the
       call to ResetDecisionHeuristic().
       Actually, we use a newer version where we follow the last value in the
       longest non-conflicting partial assignment in the current phase.
       This is called 'literal phase saving'. For details see 'A Lightweight
       Component Caching Scheme for Satisfiability Solvers' K. Pipatsrisawat and
       A.Darwiche, In 10th International Conference on Theory and Applications of
       Satisfiability Testing, 2007.
       
      optional bool use_phase_saving = 44 [default = true];
      Specified by:
      hasUsePhaseSaving in interface SatParametersOrBuilder
      Returns:
      Whether the usePhaseSaving field is set.
    • getUsePhaseSaving

      public boolean getUsePhaseSaving()
       If this is true, then the polarity of a variable will be the last value it
       was assigned to, or its default polarity if it was never assigned since the
       call to ResetDecisionHeuristic().
       Actually, we use a newer version where we follow the last value in the
       longest non-conflicting partial assignment in the current phase.
       This is called 'literal phase saving'. For details see 'A Lightweight
       Component Caching Scheme for Satisfiability Solvers' K. Pipatsrisawat and
       A.Darwiche, In 10th International Conference on Theory and Applications of
       Satisfiability Testing, 2007.
       
      optional bool use_phase_saving = 44 [default = true];
      Specified by:
      getUsePhaseSaving in interface SatParametersOrBuilder
      Returns:
      The usePhaseSaving.
    • hasPolarityRephaseIncrement

      public boolean hasPolarityRephaseIncrement()
       If non-zero, then we change the polarity heuristic after that many number
       of conflicts in an arithmetically increasing fashion. So x the first time,
       2 * x the second time, etc...
       
      optional int32 polarity_rephase_increment = 168 [default = 1000];
      Specified by:
      hasPolarityRephaseIncrement in interface SatParametersOrBuilder
      Returns:
      Whether the polarityRephaseIncrement field is set.
    • getPolarityRephaseIncrement

      public int getPolarityRephaseIncrement()
       If non-zero, then we change the polarity heuristic after that many number
       of conflicts in an arithmetically increasing fashion. So x the first time,
       2 * x the second time, etc...
       
      optional int32 polarity_rephase_increment = 168 [default = 1000];
      Specified by:
      getPolarityRephaseIncrement in interface SatParametersOrBuilder
      Returns:
      The polarityRephaseIncrement.
    • hasRandomPolarityRatio

      public boolean hasRandomPolarityRatio()
       The proportion of polarity chosen at random. Note that this take
       precedence over the phase saving heuristic. This is different from
       initial_polarity:POLARITY_RANDOM because it will select a new random
       polarity each time the variable is branched upon instead of selecting one
       initially and then always taking this choice.
       
      optional double random_polarity_ratio = 45 [default = 0];
      Specified by:
      hasRandomPolarityRatio in interface SatParametersOrBuilder
      Returns:
      Whether the randomPolarityRatio field is set.
    • getRandomPolarityRatio

      public double getRandomPolarityRatio()
       The proportion of polarity chosen at random. Note that this take
       precedence over the phase saving heuristic. This is different from
       initial_polarity:POLARITY_RANDOM because it will select a new random
       polarity each time the variable is branched upon instead of selecting one
       initially and then always taking this choice.
       
      optional double random_polarity_ratio = 45 [default = 0];
      Specified by:
      getRandomPolarityRatio in interface SatParametersOrBuilder
      Returns:
      The randomPolarityRatio.
    • hasRandomBranchesRatio

      public boolean hasRandomBranchesRatio()
       A number between 0 and 1 that indicates the proportion of branching
       variables that are selected randomly instead of choosing the first variable
       from the given variable_ordering strategy.
       
      optional double random_branches_ratio = 32 [default = 0];
      Specified by:
      hasRandomBranchesRatio in interface SatParametersOrBuilder
      Returns:
      Whether the randomBranchesRatio field is set.
    • getRandomBranchesRatio

      public double getRandomBranchesRatio()
       A number between 0 and 1 that indicates the proportion of branching
       variables that are selected randomly instead of choosing the first variable
       from the given variable_ordering strategy.
       
      optional double random_branches_ratio = 32 [default = 0];
      Specified by:
      getRandomBranchesRatio in interface SatParametersOrBuilder
      Returns:
      The randomBranchesRatio.
    • hasUseErwaHeuristic

      public boolean hasUseErwaHeuristic()
       Whether we use the ERWA (Exponential Recency Weighted Average) heuristic as
       described in "Learning Rate Based Branching Heuristic for SAT solvers",
       J.H.Liang, V. Ganesh, P. Poupart, K.Czarnecki, SAT 2016.
       
      optional bool use_erwa_heuristic = 75 [default = false];
      Specified by:
      hasUseErwaHeuristic in interface SatParametersOrBuilder
      Returns:
      Whether the useErwaHeuristic field is set.
    • getUseErwaHeuristic

      public boolean getUseErwaHeuristic()
       Whether we use the ERWA (Exponential Recency Weighted Average) heuristic as
       described in "Learning Rate Based Branching Heuristic for SAT solvers",
       J.H.Liang, V. Ganesh, P. Poupart, K.Czarnecki, SAT 2016.
       
      optional bool use_erwa_heuristic = 75 [default = false];
      Specified by:
      getUseErwaHeuristic in interface SatParametersOrBuilder
      Returns:
      The useErwaHeuristic.
    • hasInitialVariablesActivity

      public boolean hasInitialVariablesActivity()
       The initial value of the variables activity. A non-zero value only make
       sense when use_erwa_heuristic is true. Experiments with a value of 1e-2
       together with the ERWA heuristic showed slighthly better result than simply
       using zero. The idea is that when the "learning rate" of a variable becomes
       lower than this value, then we prefer to branch on never explored before
       variables. This is not in the ERWA paper.
       
      optional double initial_variables_activity = 76 [default = 0];
      Specified by:
      hasInitialVariablesActivity in interface SatParametersOrBuilder
      Returns:
      Whether the initialVariablesActivity field is set.
    • getInitialVariablesActivity

      public double getInitialVariablesActivity()
       The initial value of the variables activity. A non-zero value only make
       sense when use_erwa_heuristic is true. Experiments with a value of 1e-2
       together with the ERWA heuristic showed slighthly better result than simply
       using zero. The idea is that when the "learning rate" of a variable becomes
       lower than this value, then we prefer to branch on never explored before
       variables. This is not in the ERWA paper.
       
      optional double initial_variables_activity = 76 [default = 0];
      Specified by:
      getInitialVariablesActivity in interface SatParametersOrBuilder
      Returns:
      The initialVariablesActivity.
    • hasAlsoBumpVariablesInConflictReasons

      public boolean hasAlsoBumpVariablesInConflictReasons()
       When this is true, then the variables that appear in any of the reason of
       the variables in a conflict have their activity bumped. This is addition to
       the variables in the conflict, and the one that were used during conflict
       resolution.
       
      optional bool also_bump_variables_in_conflict_reasons = 77 [default = false];
      Specified by:
      hasAlsoBumpVariablesInConflictReasons in interface SatParametersOrBuilder
      Returns:
      Whether the alsoBumpVariablesInConflictReasons field is set.
    • getAlsoBumpVariablesInConflictReasons

      public boolean getAlsoBumpVariablesInConflictReasons()
       When this is true, then the variables that appear in any of the reason of
       the variables in a conflict have their activity bumped. This is addition to
       the variables in the conflict, and the one that were used during conflict
       resolution.
       
      optional bool also_bump_variables_in_conflict_reasons = 77 [default = false];
      Specified by:
      getAlsoBumpVariablesInConflictReasons in interface SatParametersOrBuilder
      Returns:
      The alsoBumpVariablesInConflictReasons.
    • hasMinimizationAlgorithm

      public boolean hasMinimizationAlgorithm()
      optional .operations_research.sat.SatParameters.ConflictMinimizationAlgorithm minimization_algorithm = 4 [default = RECURSIVE];
      Specified by:
      hasMinimizationAlgorithm in interface SatParametersOrBuilder
      Returns:
      Whether the minimizationAlgorithm field is set.
    • getMinimizationAlgorithm

      public SatParameters.ConflictMinimizationAlgorithm getMinimizationAlgorithm()
      optional .operations_research.sat.SatParameters.ConflictMinimizationAlgorithm minimization_algorithm = 4 [default = RECURSIVE];
      Specified by:
      getMinimizationAlgorithm in interface SatParametersOrBuilder
      Returns:
      The minimizationAlgorithm.
    • hasBinaryMinimizationAlgorithm

      public boolean hasBinaryMinimizationAlgorithm()
      optional .operations_research.sat.SatParameters.BinaryMinizationAlgorithm binary_minimization_algorithm = 34 [default = BINARY_MINIMIZATION_FIRST];
      Specified by:
      hasBinaryMinimizationAlgorithm in interface SatParametersOrBuilder
      Returns:
      Whether the binaryMinimizationAlgorithm field is set.
    • getBinaryMinimizationAlgorithm

      public SatParameters.BinaryMinizationAlgorithm getBinaryMinimizationAlgorithm()
      optional .operations_research.sat.SatParameters.BinaryMinizationAlgorithm binary_minimization_algorithm = 34 [default = BINARY_MINIMIZATION_FIRST];
      Specified by:
      getBinaryMinimizationAlgorithm in interface SatParametersOrBuilder
      Returns:
      The binaryMinimizationAlgorithm.
    • hasSubsumptionDuringConflictAnalysis

      public boolean hasSubsumptionDuringConflictAnalysis()
       At a really low cost, during the 1-UIP conflict computation, it is easy to
       detect if some of the involved reasons are subsumed by the current
       conflict. When this is true, such clauses are detached and later removed
       from the problem.
       
      optional bool subsumption_during_conflict_analysis = 56 [default = true];
      Specified by:
      hasSubsumptionDuringConflictAnalysis in interface SatParametersOrBuilder
      Returns:
      Whether the subsumptionDuringConflictAnalysis field is set.
    • getSubsumptionDuringConflictAnalysis

      public boolean getSubsumptionDuringConflictAnalysis()
       At a really low cost, during the 1-UIP conflict computation, it is easy to
       detect if some of the involved reasons are subsumed by the current
       conflict. When this is true, such clauses are detached and later removed
       from the problem.
       
      optional bool subsumption_during_conflict_analysis = 56 [default = true];
      Specified by:
      getSubsumptionDuringConflictAnalysis in interface SatParametersOrBuilder
      Returns:
      The subsumptionDuringConflictAnalysis.
    • hasClauseCleanupPeriod

      public boolean hasClauseCleanupPeriod()
       Trigger a cleanup when this number of "deletable" clauses is learned.
       
      optional int32 clause_cleanup_period = 11 [default = 10000];
      Specified by:
      hasClauseCleanupPeriod in interface SatParametersOrBuilder
      Returns:
      Whether the clauseCleanupPeriod field is set.
    • getClauseCleanupPeriod

      public int getClauseCleanupPeriod()
       Trigger a cleanup when this number of "deletable" clauses is learned.
       
      optional int32 clause_cleanup_period = 11 [default = 10000];
      Specified by:
      getClauseCleanupPeriod in interface SatParametersOrBuilder
      Returns:
      The clauseCleanupPeriod.
    • hasClauseCleanupTarget

      public boolean hasClauseCleanupTarget()
       During a cleanup, we will always keep that number of "deletable" clauses.
       Note that this doesn't include the "protected" clauses.
       
      optional int32 clause_cleanup_target = 13 [default = 10000];
      Specified by:
      hasClauseCleanupTarget in interface SatParametersOrBuilder
      Returns:
      Whether the clauseCleanupTarget field is set.
    • getClauseCleanupTarget

      public int getClauseCleanupTarget()
       During a cleanup, we will always keep that number of "deletable" clauses.
       Note that this doesn't include the "protected" clauses.
       
      optional int32 clause_cleanup_target = 13 [default = 10000];
      Specified by:
      getClauseCleanupTarget in interface SatParametersOrBuilder
      Returns:
      The clauseCleanupTarget.
    • hasClauseCleanupProtection

      public boolean hasClauseCleanupProtection()
      optional .operations_research.sat.SatParameters.ClauseProtection clause_cleanup_protection = 58 [default = PROTECTION_NONE];
      Specified by:
      hasClauseCleanupProtection in interface SatParametersOrBuilder
      Returns:
      Whether the clauseCleanupProtection field is set.
    • getClauseCleanupProtection

      public SatParameters.ClauseProtection getClauseCleanupProtection()
      optional .operations_research.sat.SatParameters.ClauseProtection clause_cleanup_protection = 58 [default = PROTECTION_NONE];
      Specified by:
      getClauseCleanupProtection in interface SatParametersOrBuilder
      Returns:
      The clauseCleanupProtection.
    • hasClauseCleanupLbdBound

      public boolean hasClauseCleanupLbdBound()
       All the clauses with a LBD (literal blocks distance) lower or equal to this
       parameters will always be kept.
       
      optional int32 clause_cleanup_lbd_bound = 59 [default = 5];
      Specified by:
      hasClauseCleanupLbdBound in interface SatParametersOrBuilder
      Returns:
      Whether the clauseCleanupLbdBound field is set.
    • getClauseCleanupLbdBound

      public int getClauseCleanupLbdBound()
       All the clauses with a LBD (literal blocks distance) lower or equal to this
       parameters will always be kept.
       
      optional int32 clause_cleanup_lbd_bound = 59 [default = 5];
      Specified by:
      getClauseCleanupLbdBound in interface SatParametersOrBuilder
      Returns:
      The clauseCleanupLbdBound.
    • hasClauseCleanupOrdering

      public boolean hasClauseCleanupOrdering()
      optional .operations_research.sat.SatParameters.ClauseOrdering clause_cleanup_ordering = 60 [default = CLAUSE_ACTIVITY];
      Specified by:
      hasClauseCleanupOrdering in interface SatParametersOrBuilder
      Returns:
      Whether the clauseCleanupOrdering field is set.
    • getClauseCleanupOrdering

      public SatParameters.ClauseOrdering getClauseCleanupOrdering()
      optional .operations_research.sat.SatParameters.ClauseOrdering clause_cleanup_ordering = 60 [default = CLAUSE_ACTIVITY];
      Specified by:
      getClauseCleanupOrdering in interface SatParametersOrBuilder
      Returns:
      The clauseCleanupOrdering.
    • hasPbCleanupIncrement

      public boolean hasPbCleanupIncrement()
       Same as for the clauses, but for the learned pseudo-Boolean constraints.
       
      optional int32 pb_cleanup_increment = 46 [default = 200];
      Specified by:
      hasPbCleanupIncrement in interface SatParametersOrBuilder
      Returns:
      Whether the pbCleanupIncrement field is set.
    • getPbCleanupIncrement

      public int getPbCleanupIncrement()
       Same as for the clauses, but for the learned pseudo-Boolean constraints.
       
      optional int32 pb_cleanup_increment = 46 [default = 200];
      Specified by:
      getPbCleanupIncrement in interface SatParametersOrBuilder
      Returns:
      The pbCleanupIncrement.
    • hasPbCleanupRatio

      public boolean hasPbCleanupRatio()
      optional double pb_cleanup_ratio = 47 [default = 0.5];
      Specified by:
      hasPbCleanupRatio in interface SatParametersOrBuilder
      Returns:
      Whether the pbCleanupRatio field is set.
    • getPbCleanupRatio

      public double getPbCleanupRatio()
      optional double pb_cleanup_ratio = 47 [default = 0.5];
      Specified by:
      getPbCleanupRatio in interface SatParametersOrBuilder
      Returns:
      The pbCleanupRatio.
    • hasMinimizeWithPropagationRestartPeriod

      public boolean hasMinimizeWithPropagationRestartPeriod()
       Parameters for an heuristic similar to the one descibed in "An effective
       learnt clause minimization approach for CDCL Sat Solvers",
       https://www.ijcai.org/proceedings/2017/0098.pdf
       For now, we have a somewhat simpler implementation where every x restart we
       spend y decisions on clause minimization. The minimization technique is the
       same as the one used to minimize core in max-sat. We also minimize problem
       clauses and not just the learned clause that we keep forever like in the
       paper.
       Changing these parameters or the kind of clause we minimize seems to have
       a big impact on the overall perf on our benchmarks. So this technique seems
       definitely useful, but it is hard to tune properly.
       
      optional int32 minimize_with_propagation_restart_period = 96 [default = 10];
      Specified by:
      hasMinimizeWithPropagationRestartPeriod in interface SatParametersOrBuilder
      Returns:
      Whether the minimizeWithPropagationRestartPeriod field is set.
    • getMinimizeWithPropagationRestartPeriod

      public int getMinimizeWithPropagationRestartPeriod()
       Parameters for an heuristic similar to the one descibed in "An effective
       learnt clause minimization approach for CDCL Sat Solvers",
       https://www.ijcai.org/proceedings/2017/0098.pdf
       For now, we have a somewhat simpler implementation where every x restart we
       spend y decisions on clause minimization. The minimization technique is the
       same as the one used to minimize core in max-sat. We also minimize problem
       clauses and not just the learned clause that we keep forever like in the
       paper.
       Changing these parameters or the kind of clause we minimize seems to have
       a big impact on the overall perf on our benchmarks. So this technique seems
       definitely useful, but it is hard to tune properly.
       
      optional int32 minimize_with_propagation_restart_period = 96 [default = 10];
      Specified by:
      getMinimizeWithPropagationRestartPeriod in interface SatParametersOrBuilder
      Returns:
      The minimizeWithPropagationRestartPeriod.
    • hasMinimizeWithPropagationNumDecisions

      public boolean hasMinimizeWithPropagationNumDecisions()
      optional int32 minimize_with_propagation_num_decisions = 97 [default = 1000];
      Specified by:
      hasMinimizeWithPropagationNumDecisions in interface SatParametersOrBuilder
      Returns:
      Whether the minimizeWithPropagationNumDecisions field is set.
    • getMinimizeWithPropagationNumDecisions

      public int getMinimizeWithPropagationNumDecisions()
      optional int32 minimize_with_propagation_num_decisions = 97 [default = 1000];
      Specified by:
      getMinimizeWithPropagationNumDecisions in interface SatParametersOrBuilder
      Returns:
      The minimizeWithPropagationNumDecisions.
    • hasVariableActivityDecay

      public boolean hasVariableActivityDecay()
       Each time a conflict is found, the activities of some variables are
       increased by one. Then, the activity of all variables are multiplied by
       variable_activity_decay.
       To implement this efficiently, the activity of all the variables is not
       decayed at each conflict. Instead, the activity increment is multiplied by
       1 / decay. When an activity reach max_variable_activity_value, all the
       activity are multiplied by 1 / max_variable_activity_value.
       
      optional double variable_activity_decay = 15 [default = 0.8];
      Specified by:
      hasVariableActivityDecay in interface SatParametersOrBuilder
      Returns:
      Whether the variableActivityDecay field is set.
    • getVariableActivityDecay

      public double getVariableActivityDecay()
       Each time a conflict is found, the activities of some variables are
       increased by one. Then, the activity of all variables are multiplied by
       variable_activity_decay.
       To implement this efficiently, the activity of all the variables is not
       decayed at each conflict. Instead, the activity increment is multiplied by
       1 / decay. When an activity reach max_variable_activity_value, all the
       activity are multiplied by 1 / max_variable_activity_value.
       
      optional double variable_activity_decay = 15 [default = 0.8];
      Specified by:
      getVariableActivityDecay in interface SatParametersOrBuilder
      Returns:
      The variableActivityDecay.
    • hasMaxVariableActivityValue

      public boolean hasMaxVariableActivityValue()
      optional double max_variable_activity_value = 16 [default = 1e+100];
      Specified by:
      hasMaxVariableActivityValue in interface SatParametersOrBuilder
      Returns:
      Whether the maxVariableActivityValue field is set.
    • getMaxVariableActivityValue

      public double getMaxVariableActivityValue()
      optional double max_variable_activity_value = 16 [default = 1e+100];
      Specified by:
      getMaxVariableActivityValue in interface SatParametersOrBuilder
      Returns:
      The maxVariableActivityValue.
    • hasGlucoseMaxDecay

      public boolean hasGlucoseMaxDecay()
       The activity starts at 0.8 and increment by 0.01 every 5000 conflicts until
       0.95. This "hack" seems to work well and comes from:
       Glucose 2.3 in the SAT 2013 Competition - SAT Competition 2013
       http://edacc4.informatik.uni-ulm.de/SC13/solver-description-download/136
       
      optional double glucose_max_decay = 22 [default = 0.95];
      Specified by:
      hasGlucoseMaxDecay in interface SatParametersOrBuilder
      Returns:
      Whether the glucoseMaxDecay field is set.
    • getGlucoseMaxDecay

      public double getGlucoseMaxDecay()
       The activity starts at 0.8 and increment by 0.01 every 5000 conflicts until
       0.95. This "hack" seems to work well and comes from:
       Glucose 2.3 in the SAT 2013 Competition - SAT Competition 2013
       http://edacc4.informatik.uni-ulm.de/SC13/solver-description-download/136
       
      optional double glucose_max_decay = 22 [default = 0.95];
      Specified by:
      getGlucoseMaxDecay in interface SatParametersOrBuilder
      Returns:
      The glucoseMaxDecay.
    • hasGlucoseDecayIncrement

      public boolean hasGlucoseDecayIncrement()
      optional double glucose_decay_increment = 23 [default = 0.01];
      Specified by:
      hasGlucoseDecayIncrement in interface SatParametersOrBuilder
      Returns:
      Whether the glucoseDecayIncrement field is set.
    • getGlucoseDecayIncrement

      public double getGlucoseDecayIncrement()
      optional double glucose_decay_increment = 23 [default = 0.01];
      Specified by:
      getGlucoseDecayIncrement in interface SatParametersOrBuilder
      Returns:
      The glucoseDecayIncrement.
    • hasGlucoseDecayIncrementPeriod

      public boolean hasGlucoseDecayIncrementPeriod()
      optional int32 glucose_decay_increment_period = 24 [default = 5000];
      Specified by:
      hasGlucoseDecayIncrementPeriod in interface SatParametersOrBuilder
      Returns:
      Whether the glucoseDecayIncrementPeriod field is set.
    • getGlucoseDecayIncrementPeriod

      public int getGlucoseDecayIncrementPeriod()
      optional int32 glucose_decay_increment_period = 24 [default = 5000];
      Specified by:
      getGlucoseDecayIncrementPeriod in interface SatParametersOrBuilder
      Returns:
      The glucoseDecayIncrementPeriod.
    • hasClauseActivityDecay

      public boolean hasClauseActivityDecay()
       Clause activity parameters (same effect as the one on the variables).
       
      optional double clause_activity_decay = 17 [default = 0.999];
      Specified by:
      hasClauseActivityDecay in interface SatParametersOrBuilder
      Returns:
      Whether the clauseActivityDecay field is set.
    • getClauseActivityDecay

      public double getClauseActivityDecay()
       Clause activity parameters (same effect as the one on the variables).
       
      optional double clause_activity_decay = 17 [default = 0.999];
      Specified by:
      getClauseActivityDecay in interface SatParametersOrBuilder
      Returns:
      The clauseActivityDecay.
    • hasMaxClauseActivityValue

      public boolean hasMaxClauseActivityValue()
      optional double max_clause_activity_value = 18 [default = 1e+20];
      Specified by:
      hasMaxClauseActivityValue in interface SatParametersOrBuilder
      Returns:
      Whether the maxClauseActivityValue field is set.
    • getMaxClauseActivityValue

      public double getMaxClauseActivityValue()
      optional double max_clause_activity_value = 18 [default = 1e+20];
      Specified by:
      getMaxClauseActivityValue in interface SatParametersOrBuilder
      Returns:
      The maxClauseActivityValue.
    • getRestartAlgorithmsList

      public java.util.List<SatParameters.RestartAlgorithm> getRestartAlgorithmsList()
       The restart strategies will change each time the strategy_counter is
       increased. The current strategy will simply be the one at index
       strategy_counter modulo the number of strategy. Note that if this list
       includes a NO_RESTART, nothing will change when it is reached because the
       strategy_counter will only increment after a restart.
       The idea of switching of search strategy tailored for SAT/UNSAT comes from
       Chanseok Oh with his COMiniSatPS solver, see http://cs.nyu.edu/~chanseok/.
       But more generally, it seems REALLY beneficial to try different strategy.
       
      repeated .operations_research.sat.SatParameters.RestartAlgorithm restart_algorithms = 61;
      Specified by:
      getRestartAlgorithmsList in interface SatParametersOrBuilder
      Returns:
      A list containing the restartAlgorithms.
    • getRestartAlgorithmsCount

      public int getRestartAlgorithmsCount()
       The restart strategies will change each time the strategy_counter is
       increased. The current strategy will simply be the one at index
       strategy_counter modulo the number of strategy. Note that if this list
       includes a NO_RESTART, nothing will change when it is reached because the
       strategy_counter will only increment after a restart.
       The idea of switching of search strategy tailored for SAT/UNSAT comes from
       Chanseok Oh with his COMiniSatPS solver, see http://cs.nyu.edu/~chanseok/.
       But more generally, it seems REALLY beneficial to try different strategy.
       
      repeated .operations_research.sat.SatParameters.RestartAlgorithm restart_algorithms = 61;
      Specified by:
      getRestartAlgorithmsCount in interface SatParametersOrBuilder
      Returns:
      The count of restartAlgorithms.
    • getRestartAlgorithms

      public SatParameters.RestartAlgorithm getRestartAlgorithms​(int index)
       The restart strategies will change each time the strategy_counter is
       increased. The current strategy will simply be the one at index
       strategy_counter modulo the number of strategy. Note that if this list
       includes a NO_RESTART, nothing will change when it is reached because the
       strategy_counter will only increment after a restart.
       The idea of switching of search strategy tailored for SAT/UNSAT comes from
       Chanseok Oh with his COMiniSatPS solver, see http://cs.nyu.edu/~chanseok/.
       But more generally, it seems REALLY beneficial to try different strategy.
       
      repeated .operations_research.sat.SatParameters.RestartAlgorithm restart_algorithms = 61;
      Specified by:
      getRestartAlgorithms in interface SatParametersOrBuilder
      Parameters:
      index - The index of the element to return.
      Returns:
      The restartAlgorithms at the given index.
    • hasDefaultRestartAlgorithms

      public boolean hasDefaultRestartAlgorithms()
      optional string default_restart_algorithms = 70 [default = "LUBY_RESTART,LBD_MOVING_AVERAGE_RESTART,DL_MOVING_AVERAGE_RESTART"];
      Specified by:
      hasDefaultRestartAlgorithms in interface SatParametersOrBuilder
      Returns:
      Whether the defaultRestartAlgorithms field is set.
    • getDefaultRestartAlgorithms

      public java.lang.String getDefaultRestartAlgorithms()
      optional string default_restart_algorithms = 70 [default = "LUBY_RESTART,LBD_MOVING_AVERAGE_RESTART,DL_MOVING_AVERAGE_RESTART"];
      Specified by:
      getDefaultRestartAlgorithms in interface SatParametersOrBuilder
      Returns:
      The defaultRestartAlgorithms.
    • getDefaultRestartAlgorithmsBytes

      public com.google.protobuf.ByteString getDefaultRestartAlgorithmsBytes()
      optional string default_restart_algorithms = 70 [default = "LUBY_RESTART,LBD_MOVING_AVERAGE_RESTART,DL_MOVING_AVERAGE_RESTART"];
      Specified by:
      getDefaultRestartAlgorithmsBytes in interface SatParametersOrBuilder
      Returns:
      The bytes for defaultRestartAlgorithms.
    • hasRestartPeriod

      public boolean hasRestartPeriod()
       Restart period for the FIXED_RESTART strategy. This is also the multiplier
       used by the LUBY_RESTART strategy.
       
      optional int32 restart_period = 30 [default = 50];
      Specified by:
      hasRestartPeriod in interface SatParametersOrBuilder
      Returns:
      Whether the restartPeriod field is set.
    • getRestartPeriod

      public int getRestartPeriod()
       Restart period for the FIXED_RESTART strategy. This is also the multiplier
       used by the LUBY_RESTART strategy.
       
      optional int32 restart_period = 30 [default = 50];
      Specified by:
      getRestartPeriod in interface SatParametersOrBuilder
      Returns:
      The restartPeriod.
    • hasRestartRunningWindowSize

      public boolean hasRestartRunningWindowSize()
       Size of the window for the moving average restarts.
       
      optional int32 restart_running_window_size = 62 [default = 50];
      Specified by:
      hasRestartRunningWindowSize in interface SatParametersOrBuilder
      Returns:
      Whether the restartRunningWindowSize field is set.
    • getRestartRunningWindowSize

      public int getRestartRunningWindowSize()
       Size of the window for the moving average restarts.
       
      optional int32 restart_running_window_size = 62 [default = 50];
      Specified by:
      getRestartRunningWindowSize in interface SatParametersOrBuilder
      Returns:
      The restartRunningWindowSize.
    • hasRestartDlAverageRatio

      public boolean hasRestartDlAverageRatio()
       In the moving average restart algorithms, a restart is triggered if the
       window average times this ratio is greater that the global average.
       
      optional double restart_dl_average_ratio = 63 [default = 1];
      Specified by:
      hasRestartDlAverageRatio in interface SatParametersOrBuilder
      Returns:
      Whether the restartDlAverageRatio field is set.
    • getRestartDlAverageRatio

      public double getRestartDlAverageRatio()
       In the moving average restart algorithms, a restart is triggered if the
       window average times this ratio is greater that the global average.
       
      optional double restart_dl_average_ratio = 63 [default = 1];
      Specified by:
      getRestartDlAverageRatio in interface SatParametersOrBuilder
      Returns:
      The restartDlAverageRatio.
    • hasRestartLbdAverageRatio

      public boolean hasRestartLbdAverageRatio()
      optional double restart_lbd_average_ratio = 71 [default = 1];
      Specified by:
      hasRestartLbdAverageRatio in interface SatParametersOrBuilder
      Returns:
      Whether the restartLbdAverageRatio field is set.
    • getRestartLbdAverageRatio

      public double getRestartLbdAverageRatio()
      optional double restart_lbd_average_ratio = 71 [default = 1];
      Specified by:
      getRestartLbdAverageRatio in interface SatParametersOrBuilder
      Returns:
      The restartLbdAverageRatio.
    • hasUseBlockingRestart

      public boolean hasUseBlockingRestart()
       Block a moving restart algorithm if the trail size of the current conflict
       is greater than the multiplier times the moving average of the trail size
       at the previous conflicts.
       
      optional bool use_blocking_restart = 64 [default = false];
      Specified by:
      hasUseBlockingRestart in interface SatParametersOrBuilder
      Returns:
      Whether the useBlockingRestart field is set.
    • getUseBlockingRestart

      public boolean getUseBlockingRestart()
       Block a moving restart algorithm if the trail size of the current conflict
       is greater than the multiplier times the moving average of the trail size
       at the previous conflicts.
       
      optional bool use_blocking_restart = 64 [default = false];
      Specified by:
      getUseBlockingRestart in interface SatParametersOrBuilder
      Returns:
      The useBlockingRestart.
    • hasBlockingRestartWindowSize

      public boolean hasBlockingRestartWindowSize()
      optional int32 blocking_restart_window_size = 65 [default = 5000];
      Specified by:
      hasBlockingRestartWindowSize in interface SatParametersOrBuilder
      Returns:
      Whether the blockingRestartWindowSize field is set.
    • getBlockingRestartWindowSize

      public int getBlockingRestartWindowSize()
      optional int32 blocking_restart_window_size = 65 [default = 5000];
      Specified by:
      getBlockingRestartWindowSize in interface SatParametersOrBuilder
      Returns:
      The blockingRestartWindowSize.
    • hasBlockingRestartMultiplier

      public boolean hasBlockingRestartMultiplier()
      optional double blocking_restart_multiplier = 66 [default = 1.4];
      Specified by:
      hasBlockingRestartMultiplier in interface SatParametersOrBuilder
      Returns:
      Whether the blockingRestartMultiplier field is set.
    • getBlockingRestartMultiplier

      public double getBlockingRestartMultiplier()
      optional double blocking_restart_multiplier = 66 [default = 1.4];
      Specified by:
      getBlockingRestartMultiplier in interface SatParametersOrBuilder
      Returns:
      The blockingRestartMultiplier.
    • hasNumConflictsBeforeStrategyChanges

      public boolean hasNumConflictsBeforeStrategyChanges()
       After each restart, if the number of conflict since the last strategy
       change is greater that this, then we increment a "strategy_counter" that
       can be use to change the search strategy used by the following restarts.
       
      optional int32 num_conflicts_before_strategy_changes = 68 [default = 0];
      Specified by:
      hasNumConflictsBeforeStrategyChanges in interface SatParametersOrBuilder
      Returns:
      Whether the numConflictsBeforeStrategyChanges field is set.
    • getNumConflictsBeforeStrategyChanges

      public int getNumConflictsBeforeStrategyChanges()
       After each restart, if the number of conflict since the last strategy
       change is greater that this, then we increment a "strategy_counter" that
       can be use to change the search strategy used by the following restarts.
       
      optional int32 num_conflicts_before_strategy_changes = 68 [default = 0];
      Specified by:
      getNumConflictsBeforeStrategyChanges in interface SatParametersOrBuilder
      Returns:
      The numConflictsBeforeStrategyChanges.
    • hasStrategyChangeIncreaseRatio

      public boolean hasStrategyChangeIncreaseRatio()
       The parameter num_conflicts_before_strategy_changes is increased by that
       much after each strategy change.
       
      optional double strategy_change_increase_ratio = 69 [default = 0];
      Specified by:
      hasStrategyChangeIncreaseRatio in interface SatParametersOrBuilder
      Returns:
      Whether the strategyChangeIncreaseRatio field is set.
    • getStrategyChangeIncreaseRatio

      public double getStrategyChangeIncreaseRatio()
       The parameter num_conflicts_before_strategy_changes is increased by that
       much after each strategy change.
       
      optional double strategy_change_increase_ratio = 69 [default = 0];
      Specified by:
      getStrategyChangeIncreaseRatio in interface SatParametersOrBuilder
      Returns:
      The strategyChangeIncreaseRatio.
    • hasMaxTimeInSeconds

      public boolean hasMaxTimeInSeconds()
       Maximum time allowed in seconds to solve a problem.
       The counter will starts at the beginning of the Solve() call.
       
      optional double max_time_in_seconds = 36 [default = inf];
      Specified by:
      hasMaxTimeInSeconds in interface SatParametersOrBuilder
      Returns:
      Whether the maxTimeInSeconds field is set.
    • getMaxTimeInSeconds

      public double getMaxTimeInSeconds()
       Maximum time allowed in seconds to solve a problem.
       The counter will starts at the beginning of the Solve() call.
       
      optional double max_time_in_seconds = 36 [default = inf];
      Specified by:
      getMaxTimeInSeconds in interface SatParametersOrBuilder
      Returns:
      The maxTimeInSeconds.
    • hasMaxDeterministicTime

      public boolean hasMaxDeterministicTime()
       Maximum time allowed in deterministic time to solve a problem.
       The deterministic time should be correlated with the real time used by the
       solver, the time unit being as close as possible to a second.
       
      optional double max_deterministic_time = 67 [default = inf];
      Specified by:
      hasMaxDeterministicTime in interface SatParametersOrBuilder
      Returns:
      Whether the maxDeterministicTime field is set.
    • getMaxDeterministicTime

      public double getMaxDeterministicTime()
       Maximum time allowed in deterministic time to solve a problem.
       The deterministic time should be correlated with the real time used by the
       solver, the time unit being as close as possible to a second.
       
      optional double max_deterministic_time = 67 [default = inf];
      Specified by:
      getMaxDeterministicTime in interface SatParametersOrBuilder
      Returns:
      The maxDeterministicTime.
    • hasMaxNumberOfConflicts

      public boolean hasMaxNumberOfConflicts()
       Maximum number of conflicts allowed to solve a problem.
       TODO(user,user): Maybe change the way the conflict limit is enforced?
       currently it is enforced on each independent internal SAT solve, rather
       than on the overall number of conflicts across all solves. So in the
       context of an optimization problem, this is not really usable directly by a
       client.
       
      optional int64 max_number_of_conflicts = 37 [default = 9223372036854775807];
      Specified by:
      hasMaxNumberOfConflicts in interface SatParametersOrBuilder
      Returns:
      Whether the maxNumberOfConflicts field is set.
    • getMaxNumberOfConflicts

      public long getMaxNumberOfConflicts()
       Maximum number of conflicts allowed to solve a problem.
       TODO(user,user): Maybe change the way the conflict limit is enforced?
       currently it is enforced on each independent internal SAT solve, rather
       than on the overall number of conflicts across all solves. So in the
       context of an optimization problem, this is not really usable directly by a
       client.
       
      optional int64 max_number_of_conflicts = 37 [default = 9223372036854775807];
      Specified by:
      getMaxNumberOfConflicts in interface SatParametersOrBuilder
      Returns:
      The maxNumberOfConflicts.
    • hasMaxMemoryInMb

      public boolean hasMaxMemoryInMb()
       Maximum memory allowed for the whole thread containing the solver. The
       solver will abort as soon as it detects that this limit is crossed. As a
       result, this limit is approximative, but usually the solver will not go too
       much over.
       
      optional int64 max_memory_in_mb = 40 [default = 10000];
      Specified by:
      hasMaxMemoryInMb in interface SatParametersOrBuilder
      Returns:
      Whether the maxMemoryInMb field is set.
    • getMaxMemoryInMb

      public long getMaxMemoryInMb()
       Maximum memory allowed for the whole thread containing the solver. The
       solver will abort as soon as it detects that this limit is crossed. As a
       result, this limit is approximative, but usually the solver will not go too
       much over.
       
      optional int64 max_memory_in_mb = 40 [default = 10000];
      Specified by:
      getMaxMemoryInMb in interface SatParametersOrBuilder
      Returns:
      The maxMemoryInMb.
    • hasAbsoluteGapLimit

      public boolean hasAbsoluteGapLimit()
       Stop the search when the gap between the best feasible objective (O) and
       our best objective bound (B) is smaller than a limit.
       The exact definition is:
       - Absolute: abs(O - B)
       - Relative: abs(O - B) / max(1, abs(O)).
       Important: The relative gap depends on the objective offset! If you
       artificially shift the objective, you will get widely different value of
       the relative gap.
       Note that if the gap is reached, the search status will be OPTIMAL. But
       one can check the best objective bound to see the actual gap.
       
      optional double absolute_gap_limit = 159 [default = 0];
      Specified by:
      hasAbsoluteGapLimit in interface SatParametersOrBuilder
      Returns:
      Whether the absoluteGapLimit field is set.
    • getAbsoluteGapLimit

      public double getAbsoluteGapLimit()
       Stop the search when the gap between the best feasible objective (O) and
       our best objective bound (B) is smaller than a limit.
       The exact definition is:
       - Absolute: abs(O - B)
       - Relative: abs(O - B) / max(1, abs(O)).
       Important: The relative gap depends on the objective offset! If you
       artificially shift the objective, you will get widely different value of
       the relative gap.
       Note that if the gap is reached, the search status will be OPTIMAL. But
       one can check the best objective bound to see the actual gap.
       
      optional double absolute_gap_limit = 159 [default = 0];
      Specified by:
      getAbsoluteGapLimit in interface SatParametersOrBuilder
      Returns:
      The absoluteGapLimit.
    • hasRelativeGapLimit

      public boolean hasRelativeGapLimit()
      optional double relative_gap_limit = 160 [default = 0];
      Specified by:
      hasRelativeGapLimit in interface SatParametersOrBuilder
      Returns:
      Whether the relativeGapLimit field is set.
    • getRelativeGapLimit

      public double getRelativeGapLimit()
      optional double relative_gap_limit = 160 [default = 0];
      Specified by:
      getRelativeGapLimit in interface SatParametersOrBuilder
      Returns:
      The relativeGapLimit.
    • hasTreatBinaryClausesSeparately

      public boolean hasTreatBinaryClausesSeparately()
       If true, the binary clauses are treated separately from the others. This
       should be faster and uses less memory. However it changes the propagation
       order.
       
      optional bool treat_binary_clauses_separately = 33 [default = true];
      Specified by:
      hasTreatBinaryClausesSeparately in interface SatParametersOrBuilder
      Returns:
      Whether the treatBinaryClausesSeparately field is set.
    • getTreatBinaryClausesSeparately

      public boolean getTreatBinaryClausesSeparately()
       If true, the binary clauses are treated separately from the others. This
       should be faster and uses less memory. However it changes the propagation
       order.
       
      optional bool treat_binary_clauses_separately = 33 [default = true];
      Specified by:
      getTreatBinaryClausesSeparately in interface SatParametersOrBuilder
      Returns:
      The treatBinaryClausesSeparately.
    • hasRandomSeed

      public boolean hasRandomSeed()
       At the beginning of each solve, the random number generator used in some
       part of the solver is reinitialized to this seed. If you change the random
       seed, the solver may make different choices during the solving process.
       For some problems, the running time may vary a lot depending on small
       change in the solving algorithm. Running the solver with different seeds
       enables to have more robust benchmarks when evaluating new features.
       
      optional int32 random_seed = 31 [default = 1];
      Specified by:
      hasRandomSeed in interface SatParametersOrBuilder
      Returns:
      Whether the randomSeed field is set.
    • getRandomSeed

      public int getRandomSeed()
       At the beginning of each solve, the random number generator used in some
       part of the solver is reinitialized to this seed. If you change the random
       seed, the solver may make different choices during the solving process.
       For some problems, the running time may vary a lot depending on small
       change in the solving algorithm. Running the solver with different seeds
       enables to have more robust benchmarks when evaluating new features.
       
      optional int32 random_seed = 31 [default = 1];
      Specified by:
      getRandomSeed in interface SatParametersOrBuilder
      Returns:
      The randomSeed.
    • hasPermuteVariableRandomly

      public boolean hasPermuteVariableRandomly()
       This is mainly here to test the solver variability. Note that in tests, if
       not explicitly set to false, all 3 options will be set to true so that
       clients do not rely on the solver returning a specific solution if they are
       many equivalent optimal solutions.
       
      optional bool permute_variable_randomly = 178 [default = false];
      Specified by:
      hasPermuteVariableRandomly in interface SatParametersOrBuilder
      Returns:
      Whether the permuteVariableRandomly field is set.
    • getPermuteVariableRandomly

      public boolean getPermuteVariableRandomly()
       This is mainly here to test the solver variability. Note that in tests, if
       not explicitly set to false, all 3 options will be set to true so that
       clients do not rely on the solver returning a specific solution if they are
       many equivalent optimal solutions.
       
      optional bool permute_variable_randomly = 178 [default = false];
      Specified by:
      getPermuteVariableRandomly in interface SatParametersOrBuilder
      Returns:
      The permuteVariableRandomly.
    • hasPermutePresolveConstraintOrder

      public boolean hasPermutePresolveConstraintOrder()
      optional bool permute_presolve_constraint_order = 179 [default = false];
      Specified by:
      hasPermutePresolveConstraintOrder in interface SatParametersOrBuilder
      Returns:
      Whether the permutePresolveConstraintOrder field is set.
    • getPermutePresolveConstraintOrder

      public boolean getPermutePresolveConstraintOrder()
      optional bool permute_presolve_constraint_order = 179 [default = false];
      Specified by:
      getPermutePresolveConstraintOrder in interface SatParametersOrBuilder
      Returns:
      The permutePresolveConstraintOrder.
    • hasUseAbslRandom

      public boolean hasUseAbslRandom()
      optional bool use_absl_random = 180 [default = false];
      Specified by:
      hasUseAbslRandom in interface SatParametersOrBuilder
      Returns:
      Whether the useAbslRandom field is set.
    • getUseAbslRandom

      public boolean getUseAbslRandom()
      optional bool use_absl_random = 180 [default = false];
      Specified by:
      getUseAbslRandom in interface SatParametersOrBuilder
      Returns:
      The useAbslRandom.
    • hasLogSearchProgress

      public boolean hasLogSearchProgress()
       Whether the solver should log the search progress. By default, it logs to
       LOG(INFO). This can be overwritten by the log_destination parameter.
       
      optional bool log_search_progress = 41 [default = false];
      Specified by:
      hasLogSearchProgress in interface SatParametersOrBuilder
      Returns:
      Whether the logSearchProgress field is set.
    • getLogSearchProgress

      public boolean getLogSearchProgress()
       Whether the solver should log the search progress. By default, it logs to
       LOG(INFO). This can be overwritten by the log_destination parameter.
       
      optional bool log_search_progress = 41 [default = false];
      Specified by:
      getLogSearchProgress in interface SatParametersOrBuilder
      Returns:
      The logSearchProgress.
    • hasLogPrefix

      public boolean hasLogPrefix()
       Add a prefix to all logs.
       
      optional string log_prefix = 185 [default = ""];
      Specified by:
      hasLogPrefix in interface SatParametersOrBuilder
      Returns:
      Whether the logPrefix field is set.
    • getLogPrefix

      public java.lang.String getLogPrefix()
       Add a prefix to all logs.
       
      optional string log_prefix = 185 [default = ""];
      Specified by:
      getLogPrefix in interface SatParametersOrBuilder
      Returns:
      The logPrefix.
    • getLogPrefixBytes

      public com.google.protobuf.ByteString getLogPrefixBytes()
       Add a prefix to all logs.
       
      optional string log_prefix = 185 [default = ""];
      Specified by:
      getLogPrefixBytes in interface SatParametersOrBuilder
      Returns:
      The bytes for logPrefix.
    • hasLogToStdout

      public boolean hasLogToStdout()
       Log to stdout.
       
      optional bool log_to_stdout = 186 [default = true];
      Specified by:
      hasLogToStdout in interface SatParametersOrBuilder
      Returns:
      Whether the logToStdout field is set.
    • getLogToStdout

      public boolean getLogToStdout()
       Log to stdout.
       
      optional bool log_to_stdout = 186 [default = true];
      Specified by:
      getLogToStdout in interface SatParametersOrBuilder
      Returns:
      The logToStdout.
    • hasLogToResponse

      public boolean hasLogToResponse()
       Log to response proto.
       
      optional bool log_to_response = 187 [default = false];
      Specified by:
      hasLogToResponse in interface SatParametersOrBuilder
      Returns:
      Whether the logToResponse field is set.
    • getLogToResponse

      public boolean getLogToResponse()
       Log to response proto.
       
      optional bool log_to_response = 187 [default = false];
      Specified by:
      getLogToResponse in interface SatParametersOrBuilder
      Returns:
      The logToResponse.
    • hasUsePbResolution

      public boolean hasUsePbResolution()
       Whether to use pseudo-Boolean resolution to analyze a conflict. Note that
       this option only make sense if your problem is modelized using
       pseudo-Boolean constraints. If you only have clauses, this shouldn't change
       anything (except slow the solver down).
       
      optional bool use_pb_resolution = 43 [default = false];
      Specified by:
      hasUsePbResolution in interface SatParametersOrBuilder
      Returns:
      Whether the usePbResolution field is set.
    • getUsePbResolution

      public boolean getUsePbResolution()
       Whether to use pseudo-Boolean resolution to analyze a conflict. Note that
       this option only make sense if your problem is modelized using
       pseudo-Boolean constraints. If you only have clauses, this shouldn't change
       anything (except slow the solver down).
       
      optional bool use_pb_resolution = 43 [default = false];
      Specified by:
      getUsePbResolution in interface SatParametersOrBuilder
      Returns:
      The usePbResolution.
    • hasMinimizeReductionDuringPbResolution

      public boolean hasMinimizeReductionDuringPbResolution()
       A different algorithm during PB resolution. It minimizes the number of
       calls to ReduceCoefficients() which can be time consuming. However, the
       search space will be different and if the coefficients are large, this may
       lead to integer overflows that could otherwise be prevented.
       
      optional bool minimize_reduction_during_pb_resolution = 48 [default = false];
      Specified by:
      hasMinimizeReductionDuringPbResolution in interface SatParametersOrBuilder
      Returns:
      Whether the minimizeReductionDuringPbResolution field is set.
    • getMinimizeReductionDuringPbResolution

      public boolean getMinimizeReductionDuringPbResolution()
       A different algorithm during PB resolution. It minimizes the number of
       calls to ReduceCoefficients() which can be time consuming. However, the
       search space will be different and if the coefficients are large, this may
       lead to integer overflows that could otherwise be prevented.
       
      optional bool minimize_reduction_during_pb_resolution = 48 [default = false];
      Specified by:
      getMinimizeReductionDuringPbResolution in interface SatParametersOrBuilder
      Returns:
      The minimizeReductionDuringPbResolution.
    • hasCountAssumptionLevelsInLbd

      public boolean hasCountAssumptionLevelsInLbd()
       Whether or not the assumption levels are taken into account during the LBD
       computation. According to the reference below, not counting them improves
       the solver in some situation. Note that this only impact solves under
       assumptions.
       Gilles Audemard, Jean-Marie Lagniez, Laurent Simon, "Improving Glucose for
       Incremental SAT Solving with Assumptions: Application to MUS Extraction"
       Theory and Applications of Satisfiability Testing - SAT 2013, Lecture Notes
       in Computer Science Volume 7962, 2013, pp 309-317.
       
      optional bool count_assumption_levels_in_lbd = 49 [default = true];
      Specified by:
      hasCountAssumptionLevelsInLbd in interface SatParametersOrBuilder
      Returns:
      Whether the countAssumptionLevelsInLbd field is set.
    • getCountAssumptionLevelsInLbd

      public boolean getCountAssumptionLevelsInLbd()
       Whether or not the assumption levels are taken into account during the LBD
       computation. According to the reference below, not counting them improves
       the solver in some situation. Note that this only impact solves under
       assumptions.
       Gilles Audemard, Jean-Marie Lagniez, Laurent Simon, "Improving Glucose for
       Incremental SAT Solving with Assumptions: Application to MUS Extraction"
       Theory and Applications of Satisfiability Testing - SAT 2013, Lecture Notes
       in Computer Science Volume 7962, 2013, pp 309-317.
       
      optional bool count_assumption_levels_in_lbd = 49 [default = true];
      Specified by:
      getCountAssumptionLevelsInLbd in interface SatParametersOrBuilder
      Returns:
      The countAssumptionLevelsInLbd.
    • hasPresolveBveThreshold

      public boolean hasPresolveBveThreshold()
       During presolve, only try to perform the bounded variable elimination (BVE)
       of a variable x if the number of occurrences of x times the number of
       occurrences of not(x) is not greater than this parameter.
       
      optional int32 presolve_bve_threshold = 54 [default = 500];
      Specified by:
      hasPresolveBveThreshold in interface SatParametersOrBuilder
      Returns:
      Whether the presolveBveThreshold field is set.
    • getPresolveBveThreshold

      public int getPresolveBveThreshold()
       During presolve, only try to perform the bounded variable elimination (BVE)
       of a variable x if the number of occurrences of x times the number of
       occurrences of not(x) is not greater than this parameter.
       
      optional int32 presolve_bve_threshold = 54 [default = 500];
      Specified by:
      getPresolveBveThreshold in interface SatParametersOrBuilder
      Returns:
      The presolveBveThreshold.
    • hasPresolveBveClauseWeight

      public boolean hasPresolveBveClauseWeight()
       During presolve, we apply BVE only if this weight times the number of
       clauses plus the number of clause literals is not increased.
       
      optional int32 presolve_bve_clause_weight = 55 [default = 3];
      Specified by:
      hasPresolveBveClauseWeight in interface SatParametersOrBuilder
      Returns:
      Whether the presolveBveClauseWeight field is set.
    • getPresolveBveClauseWeight

      public int getPresolveBveClauseWeight()
       During presolve, we apply BVE only if this weight times the number of
       clauses plus the number of clause literals is not increased.
       
      optional int32 presolve_bve_clause_weight = 55 [default = 3];
      Specified by:
      getPresolveBveClauseWeight in interface SatParametersOrBuilder
      Returns:
      The presolveBveClauseWeight.
    • hasPresolveProbingDeterministicTimeLimit

      public boolean hasPresolveProbingDeterministicTimeLimit()
       The maximum "deterministic" time limit to spend in probing. A value of
       zero will disable the probing.
       
      optional double presolve_probing_deterministic_time_limit = 57 [default = 30];
      Specified by:
      hasPresolveProbingDeterministicTimeLimit in interface SatParametersOrBuilder
      Returns:
      Whether the presolveProbingDeterministicTimeLimit field is set.
    • getPresolveProbingDeterministicTimeLimit

      public double getPresolveProbingDeterministicTimeLimit()
       The maximum "deterministic" time limit to spend in probing. A value of
       zero will disable the probing.
       
      optional double presolve_probing_deterministic_time_limit = 57 [default = 30];
      Specified by:
      getPresolveProbingDeterministicTimeLimit in interface SatParametersOrBuilder
      Returns:
      The presolveProbingDeterministicTimeLimit.
    • hasPresolveBlockedClause

      public boolean hasPresolveBlockedClause()
       Whether we use an heuristic to detect some basic case of blocked clause
       in the SAT presolve.
       
      optional bool presolve_blocked_clause = 88 [default = true];
      Specified by:
      hasPresolveBlockedClause in interface SatParametersOrBuilder
      Returns:
      Whether the presolveBlockedClause field is set.
    • getPresolveBlockedClause

      public boolean getPresolveBlockedClause()
       Whether we use an heuristic to detect some basic case of blocked clause
       in the SAT presolve.
       
      optional bool presolve_blocked_clause = 88 [default = true];
      Specified by:
      getPresolveBlockedClause in interface SatParametersOrBuilder
      Returns:
      The presolveBlockedClause.
    • hasPresolveUseBva

      public boolean hasPresolveUseBva()
       Whether or not we use Bounded Variable Addition (BVA) in the presolve.
       
      optional bool presolve_use_bva = 72 [default = true];
      Specified by:
      hasPresolveUseBva in interface SatParametersOrBuilder
      Returns:
      Whether the presolveUseBva field is set.
    • getPresolveUseBva

      public boolean getPresolveUseBva()
       Whether or not we use Bounded Variable Addition (BVA) in the presolve.
       
      optional bool presolve_use_bva = 72 [default = true];
      Specified by:
      getPresolveUseBva in interface SatParametersOrBuilder
      Returns:
      The presolveUseBva.
    • hasPresolveBvaThreshold

      public boolean hasPresolveBvaThreshold()
       Apply Bounded Variable Addition (BVA) if the number of clauses is reduced
       by stricly more than this threshold. The algorithm described in the paper
       uses 0, but quick experiments showed that 1 is a good value. It may not be
       worth it to add a new variable just to remove one clause.
       
      optional int32 presolve_bva_threshold = 73 [default = 1];
      Specified by:
      hasPresolveBvaThreshold in interface SatParametersOrBuilder
      Returns:
      Whether the presolveBvaThreshold field is set.
    • getPresolveBvaThreshold

      public int getPresolveBvaThreshold()
       Apply Bounded Variable Addition (BVA) if the number of clauses is reduced
       by stricly more than this threshold. The algorithm described in the paper
       uses 0, but quick experiments showed that 1 is a good value. It may not be
       worth it to add a new variable just to remove one clause.
       
      optional int32 presolve_bva_threshold = 73 [default = 1];
      Specified by:
      getPresolveBvaThreshold in interface SatParametersOrBuilder
      Returns:
      The presolveBvaThreshold.
    • hasMaxPresolveIterations

      public boolean hasMaxPresolveIterations()
       In case of large reduction in a presolve iteration, we perform multiple
       presolve iterations. This parameter controls the maximum number of such
       presolve iterations.
       
      optional int32 max_presolve_iterations = 138 [default = 3];
      Specified by:
      hasMaxPresolveIterations in interface SatParametersOrBuilder
      Returns:
      Whether the maxPresolveIterations field is set.
    • getMaxPresolveIterations

      public int getMaxPresolveIterations()
       In case of large reduction in a presolve iteration, we perform multiple
       presolve iterations. This parameter controls the maximum number of such
       presolve iterations.
       
      optional int32 max_presolve_iterations = 138 [default = 3];
      Specified by:
      getMaxPresolveIterations in interface SatParametersOrBuilder
      Returns:
      The maxPresolveIterations.
    • hasCpModelPresolve

      public boolean hasCpModelPresolve()
       Whether we presolve the cp_model before solving it.
       
      optional bool cp_model_presolve = 86 [default = true];
      Specified by:
      hasCpModelPresolve in interface SatParametersOrBuilder
      Returns:
      Whether the cpModelPresolve field is set.
    • getCpModelPresolve

      public boolean getCpModelPresolve()
       Whether we presolve the cp_model before solving it.
       
      optional bool cp_model_presolve = 86 [default = true];
      Specified by:
      getCpModelPresolve in interface SatParametersOrBuilder
      Returns:
      The cpModelPresolve.
    • hasCpModelPostsolveWithFullSolver

      public boolean hasCpModelPostsolveWithFullSolver()
       Advanced usage. We have two different postsolve code. The default one
       should be better and it allows for a more powerful presolve, but some
       rarely used features like not fully assigning all variables require the
       other one.
       
      optional bool cp_model_postsolve_with_full_solver = 162 [default = false];
      Specified by:
      hasCpModelPostsolveWithFullSolver in interface SatParametersOrBuilder
      Returns:
      Whether the cpModelPostsolveWithFullSolver field is set.
    • getCpModelPostsolveWithFullSolver

      public boolean getCpModelPostsolveWithFullSolver()
       Advanced usage. We have two different postsolve code. The default one
       should be better and it allows for a more powerful presolve, but some
       rarely used features like not fully assigning all variables require the
       other one.
       
      optional bool cp_model_postsolve_with_full_solver = 162 [default = false];
      Specified by:
      getCpModelPostsolveWithFullSolver in interface SatParametersOrBuilder
      Returns:
      The cpModelPostsolveWithFullSolver.
    • hasCpModelMaxNumPresolveOperations

      public boolean hasCpModelMaxNumPresolveOperations()
       If positive, try to stop just after that many presolve rules have been
       applied. This is mainly useful for debugging presolve.
       
      optional int32 cp_model_max_num_presolve_operations = 151 [default = 0];
      Specified by:
      hasCpModelMaxNumPresolveOperations in interface SatParametersOrBuilder
      Returns:
      Whether the cpModelMaxNumPresolveOperations field is set.
    • getCpModelMaxNumPresolveOperations

      public int getCpModelMaxNumPresolveOperations()
       If positive, try to stop just after that many presolve rules have been
       applied. This is mainly useful for debugging presolve.
       
      optional int32 cp_model_max_num_presolve_operations = 151 [default = 0];
      Specified by:
      getCpModelMaxNumPresolveOperations in interface SatParametersOrBuilder
      Returns:
      The cpModelMaxNumPresolveOperations.
    • hasCpModelProbingLevel

      public boolean hasCpModelProbingLevel()
       How much effort do we spend on probing. 0 disables it completely.
       
      optional int32 cp_model_probing_level = 110 [default = 2];
      Specified by:
      hasCpModelProbingLevel in interface SatParametersOrBuilder
      Returns:
      Whether the cpModelProbingLevel field is set.
    • getCpModelProbingLevel

      public int getCpModelProbingLevel()
       How much effort do we spend on probing. 0 disables it completely.
       
      optional int32 cp_model_probing_level = 110 [default = 2];
      Specified by:
      getCpModelProbingLevel in interface SatParametersOrBuilder
      Returns:
      The cpModelProbingLevel.
    • hasCpModelUseSatPresolve

      public boolean hasCpModelUseSatPresolve()
       Whether we also use the sat presolve when cp_model_presolve is true.
       
      optional bool cp_model_use_sat_presolve = 93 [default = true];
      Specified by:
      hasCpModelUseSatPresolve in interface SatParametersOrBuilder
      Returns:
      Whether the cpModelUseSatPresolve field is set.
    • getCpModelUseSatPresolve

      public boolean getCpModelUseSatPresolve()
       Whether we also use the sat presolve when cp_model_presolve is true.
       
      optional bool cp_model_use_sat_presolve = 93 [default = true];
      Specified by:
      getCpModelUseSatPresolve in interface SatParametersOrBuilder
      Returns:
      The cpModelUseSatPresolve.
    • hasUseSatInprocessing

      public boolean hasUseSatInprocessing()
      optional bool use_sat_inprocessing = 163 [default = false];
      Specified by:
      hasUseSatInprocessing in interface SatParametersOrBuilder
      Returns:
      Whether the useSatInprocessing field is set.
    • getUseSatInprocessing

      public boolean getUseSatInprocessing()
      optional bool use_sat_inprocessing = 163 [default = false];
      Specified by:
      getUseSatInprocessing in interface SatParametersOrBuilder
      Returns:
      The useSatInprocessing.
    • hasExpandElementConstraints

      public boolean hasExpandElementConstraints()
       If true, the element constraints are expanded into many
       linear constraints of the form (index == i) => (element[i] == target).
       
      optional bool expand_element_constraints = 140 [default = true];
      Specified by:
      hasExpandElementConstraints in interface SatParametersOrBuilder
      Returns:
      Whether the expandElementConstraints field is set.
    • getExpandElementConstraints

      public boolean getExpandElementConstraints()
       If true, the element constraints are expanded into many
       linear constraints of the form (index == i) => (element[i] == target).
       
      optional bool expand_element_constraints = 140 [default = true];
      Specified by:
      getExpandElementConstraints in interface SatParametersOrBuilder
      Returns:
      The expandElementConstraints.
    • hasExpandAutomatonConstraints

      public boolean hasExpandAutomatonConstraints()
       If true, the automaton constraints are expanded.
       
      optional bool expand_automaton_constraints = 143 [default = true];
      Specified by:
      hasExpandAutomatonConstraints in interface SatParametersOrBuilder
      Returns:
      Whether the expandAutomatonConstraints field is set.
    • getExpandAutomatonConstraints

      public boolean getExpandAutomatonConstraints()
       If true, the automaton constraints are expanded.
       
      optional bool expand_automaton_constraints = 143 [default = true];
      Specified by:
      getExpandAutomatonConstraints in interface SatParametersOrBuilder
      Returns:
      The expandAutomatonConstraints.
    • hasExpandTableConstraints

      public boolean hasExpandTableConstraints()
       If true, the positive table constraints are expanded.
       Note that currently, negative table constraints are always expanded.
       
      optional bool expand_table_constraints = 158 [default = true];
      Specified by:
      hasExpandTableConstraints in interface SatParametersOrBuilder
      Returns:
      Whether the expandTableConstraints field is set.
    • getExpandTableConstraints

      public boolean getExpandTableConstraints()
       If true, the positive table constraints are expanded.
       Note that currently, negative table constraints are always expanded.
       
      optional bool expand_table_constraints = 158 [default = true];
      Specified by:
      getExpandTableConstraints in interface SatParametersOrBuilder
      Returns:
      The expandTableConstraints.
    • hasExpandAlldiffConstraints

      public boolean hasExpandAlldiffConstraints()
       If true, expand all_different constraints that are not permutations.
       Permutations (#Variables = #Values) are always expanded.
       
      optional bool expand_alldiff_constraints = 170 [default = false];
      Specified by:
      hasExpandAlldiffConstraints in interface SatParametersOrBuilder
      Returns:
      Whether the expandAlldiffConstraints field is set.
    • getExpandAlldiffConstraints

      public boolean getExpandAlldiffConstraints()
       If true, expand all_different constraints that are not permutations.
       Permutations (#Variables = #Values) are always expanded.
       
      optional bool expand_alldiff_constraints = 170 [default = false];
      Specified by:
      getExpandAlldiffConstraints in interface SatParametersOrBuilder
      Returns:
      The expandAlldiffConstraints.
    • hasExpandReservoirConstraints

      public boolean hasExpandReservoirConstraints()
       If true, expand the reservoir constraints by creating booleans for all
       possible precedences between event and encoding the constraint.
       
      optional bool expand_reservoir_constraints = 182 [default = true];
      Specified by:
      hasExpandReservoirConstraints in interface SatParametersOrBuilder
      Returns:
      Whether the expandReservoirConstraints field is set.
    • getExpandReservoirConstraints

      public boolean getExpandReservoirConstraints()
       If true, expand the reservoir constraints by creating booleans for all
       possible precedences between event and encoding the constraint.
       
      optional bool expand_reservoir_constraints = 182 [default = true];
      Specified by:
      getExpandReservoirConstraints in interface SatParametersOrBuilder
      Returns:
      The expandReservoirConstraints.
    • hasDisableConstraintExpansion

      public boolean hasDisableConstraintExpansion()
       If true, it disable all constraint expansion.
       This should only be used to test the presolve of expanded constraints.
       
      optional bool disable_constraint_expansion = 181 [default = false];
      Specified by:
      hasDisableConstraintExpansion in interface SatParametersOrBuilder
      Returns:
      Whether the disableConstraintExpansion field is set.
    • getDisableConstraintExpansion

      public boolean getDisableConstraintExpansion()
       If true, it disable all constraint expansion.
       This should only be used to test the presolve of expanded constraints.
       
      optional bool disable_constraint_expansion = 181 [default = false];
      Specified by:
      getDisableConstraintExpansion in interface SatParametersOrBuilder
      Returns:
      The disableConstraintExpansion.
    • hasMergeNoOverlapWorkLimit

      public boolean hasMergeNoOverlapWorkLimit()
       During presolve, we use a maximum clique heuristic to merge together
       no-overlap constraints or at most one constraints. This code can be slow,
       so we have a limit in place on the number of explored nodes in the
       underlying graph. The internal limit is an int64, but we use double here to
       simplify manual input.
       
      optional double merge_no_overlap_work_limit = 145 [default = 1000000000000];
      Specified by:
      hasMergeNoOverlapWorkLimit in interface SatParametersOrBuilder
      Returns:
      Whether the mergeNoOverlapWorkLimit field is set.
    • getMergeNoOverlapWorkLimit

      public double getMergeNoOverlapWorkLimit()
       During presolve, we use a maximum clique heuristic to merge together
       no-overlap constraints or at most one constraints. This code can be slow,
       so we have a limit in place on the number of explored nodes in the
       underlying graph. The internal limit is an int64, but we use double here to
       simplify manual input.
       
      optional double merge_no_overlap_work_limit = 145 [default = 1000000000000];
      Specified by:
      getMergeNoOverlapWorkLimit in interface SatParametersOrBuilder
      Returns:
      The mergeNoOverlapWorkLimit.
    • hasMergeAtMostOneWorkLimit

      public boolean hasMergeAtMostOneWorkLimit()
      optional double merge_at_most_one_work_limit = 146 [default = 100000000];
      Specified by:
      hasMergeAtMostOneWorkLimit in interface SatParametersOrBuilder
      Returns:
      Whether the mergeAtMostOneWorkLimit field is set.
    • getMergeAtMostOneWorkLimit

      public double getMergeAtMostOneWorkLimit()
      optional double merge_at_most_one_work_limit = 146 [default = 100000000];
      Specified by:
      getMergeAtMostOneWorkLimit in interface SatParametersOrBuilder
      Returns:
      The mergeAtMostOneWorkLimit.
    • hasPresolveSubstitutionLevel

      public boolean hasPresolveSubstitutionLevel()
       How much substitution (also called free variable aggregation in MIP
       litterature) should we perform at presolve. This currently only concerns
       variable appearing only in linear constraints. For now the value 0 turns it
       off and any positive value performs substitution.
       
      optional int32 presolve_substitution_level = 147 [default = 1];
      Specified by:
      hasPresolveSubstitutionLevel in interface SatParametersOrBuilder
      Returns:
      Whether the presolveSubstitutionLevel field is set.
    • getPresolveSubstitutionLevel

      public int getPresolveSubstitutionLevel()
       How much substitution (also called free variable aggregation in MIP
       litterature) should we perform at presolve. This currently only concerns
       variable appearing only in linear constraints. For now the value 0 turns it
       off and any positive value performs substitution.
       
      optional int32 presolve_substitution_level = 147 [default = 1];
      Specified by:
      getPresolveSubstitutionLevel in interface SatParametersOrBuilder
      Returns:
      The presolveSubstitutionLevel.
    • hasPresolveExtractIntegerEnforcement

      public boolean hasPresolveExtractIntegerEnforcement()
       If true, we will extract from linear constraints, enforcement literals of
       the form "integer variable at bound => simplified constraint". This should
       always be beneficial except that we don't always handle them as efficiently
       as we could for now. This causes problem on manna81.mps (LP relaxation not
       as tight it seems) and on neos-3354841-apure.mps.gz (too many literals
       created this way).
       
      optional bool presolve_extract_integer_enforcement = 174 [default = false];
      Specified by:
      hasPresolveExtractIntegerEnforcement in interface SatParametersOrBuilder
      Returns:
      Whether the presolveExtractIntegerEnforcement field is set.
    • getPresolveExtractIntegerEnforcement

      public boolean getPresolveExtractIntegerEnforcement()
       If true, we will extract from linear constraints, enforcement literals of
       the form "integer variable at bound => simplified constraint". This should
       always be beneficial except that we don't always handle them as efficiently
       as we could for now. This causes problem on manna81.mps (LP relaxation not
       as tight it seems) and on neos-3354841-apure.mps.gz (too many literals
       created this way).
       
      optional bool presolve_extract_integer_enforcement = 174 [default = false];
      Specified by:
      getPresolveExtractIntegerEnforcement in interface SatParametersOrBuilder
      Returns:
      The presolveExtractIntegerEnforcement.
    • hasUseOptimizationHints

      public boolean hasUseOptimizationHints()
       For an optimization problem, whether we follow some hints in order to find
       a better first solution. For a variable with hint, the solver will always
       try to follow the hint. It will revert to the variable_branching default
       otherwise.
       
      optional bool use_optimization_hints = 35 [default = true];
      Specified by:
      hasUseOptimizationHints in interface SatParametersOrBuilder
      Returns:
      Whether the useOptimizationHints field is set.
    • getUseOptimizationHints

      public boolean getUseOptimizationHints()
       For an optimization problem, whether we follow some hints in order to find
       a better first solution. For a variable with hint, the solver will always
       try to follow the hint. It will revert to the variable_branching default
       otherwise.
       
      optional bool use_optimization_hints = 35 [default = true];
      Specified by:
      getUseOptimizationHints in interface SatParametersOrBuilder
      Returns:
      The useOptimizationHints.
    • hasMinimizeCore

      public boolean hasMinimizeCore()
       Whether we use a simple heuristic to try to minimize an UNSAT core.
       
      optional bool minimize_core = 50 [default = true];
      Specified by:
      hasMinimizeCore in interface SatParametersOrBuilder
      Returns:
      Whether the minimizeCore field is set.
    • getMinimizeCore

      public boolean getMinimizeCore()
       Whether we use a simple heuristic to try to minimize an UNSAT core.
       
      optional bool minimize_core = 50 [default = true];
      Specified by:
      getMinimizeCore in interface SatParametersOrBuilder
      Returns:
      The minimizeCore.
    • hasFindMultipleCores

      public boolean hasFindMultipleCores()
       Whether we try to find more independent cores for a given set of
       assumptions in the core based max-SAT algorithms.
       
      optional bool find_multiple_cores = 84 [default = true];
      Specified by:
      hasFindMultipleCores in interface SatParametersOrBuilder
      Returns:
      Whether the findMultipleCores field is set.
    • getFindMultipleCores

      public boolean getFindMultipleCores()
       Whether we try to find more independent cores for a given set of
       assumptions in the core based max-SAT algorithms.
       
      optional bool find_multiple_cores = 84 [default = true];
      Specified by:
      getFindMultipleCores in interface SatParametersOrBuilder
      Returns:
      The findMultipleCores.
    • hasCoverOptimization

      public boolean hasCoverOptimization()
       If true, when the max-sat algo find a core, we compute the minimal number
       of literals in the core that needs to be true to have a feasible solution.
       
      optional bool cover_optimization = 89 [default = true];
      Specified by:
      hasCoverOptimization in interface SatParametersOrBuilder
      Returns:
      Whether the coverOptimization field is set.
    • getCoverOptimization

      public boolean getCoverOptimization()
       If true, when the max-sat algo find a core, we compute the minimal number
       of literals in the core that needs to be true to have a feasible solution.
       
      optional bool cover_optimization = 89 [default = true];
      Specified by:
      getCoverOptimization in interface SatParametersOrBuilder
      Returns:
      The coverOptimization.
    • hasMaxSatAssumptionOrder

      public boolean hasMaxSatAssumptionOrder()
      optional .operations_research.sat.SatParameters.MaxSatAssumptionOrder max_sat_assumption_order = 51 [default = DEFAULT_ASSUMPTION_ORDER];
      Specified by:
      hasMaxSatAssumptionOrder in interface SatParametersOrBuilder
      Returns:
      Whether the maxSatAssumptionOrder field is set.
    • getMaxSatAssumptionOrder

      public SatParameters.MaxSatAssumptionOrder getMaxSatAssumptionOrder()
      optional .operations_research.sat.SatParameters.MaxSatAssumptionOrder max_sat_assumption_order = 51 [default = DEFAULT_ASSUMPTION_ORDER];
      Specified by:
      getMaxSatAssumptionOrder in interface SatParametersOrBuilder
      Returns:
      The maxSatAssumptionOrder.
    • hasMaxSatReverseAssumptionOrder

      public boolean hasMaxSatReverseAssumptionOrder()
       If true, adds the assumption in the reverse order of the one defined by
       max_sat_assumption_order.
       
      optional bool max_sat_reverse_assumption_order = 52 [default = false];
      Specified by:
      hasMaxSatReverseAssumptionOrder in interface SatParametersOrBuilder
      Returns:
      Whether the maxSatReverseAssumptionOrder field is set.
    • getMaxSatReverseAssumptionOrder

      public boolean getMaxSatReverseAssumptionOrder()
       If true, adds the assumption in the reverse order of the one defined by
       max_sat_assumption_order.
       
      optional bool max_sat_reverse_assumption_order = 52 [default = false];
      Specified by:
      getMaxSatReverseAssumptionOrder in interface SatParametersOrBuilder
      Returns:
      The maxSatReverseAssumptionOrder.
    • hasMaxSatStratification

      public boolean hasMaxSatStratification()
      optional .operations_research.sat.SatParameters.MaxSatStratificationAlgorithm max_sat_stratification = 53 [default = STRATIFICATION_DESCENT];
      Specified by:
      hasMaxSatStratification in interface SatParametersOrBuilder
      Returns:
      Whether the maxSatStratification field is set.
    • getMaxSatStratification

      public SatParameters.MaxSatStratificationAlgorithm getMaxSatStratification()
      optional .operations_research.sat.SatParameters.MaxSatStratificationAlgorithm max_sat_stratification = 53 [default = STRATIFICATION_DESCENT];
      Specified by:
      getMaxSatStratification in interface SatParametersOrBuilder
      Returns:
      The maxSatStratification.
    • hasUsePrecedencesInDisjunctiveConstraint

      public boolean hasUsePrecedencesInDisjunctiveConstraint()
       When this is true, then a disjunctive constraint will try to use the
       precedence relations between time intervals to propagate their bounds
       further. For instance if task A and B are both before C and task A and B
       are in disjunction, then we can deduce that task C must start after
       duration(A) + duration(B) instead of simply max(duration(A), duration(B)),
       provided that the start time for all task was currently zero.
       This always result in better propagation, but it is usually slow, so
       depending on the problem, turning this off may lead to a faster solution.
       
      optional bool use_precedences_in_disjunctive_constraint = 74 [default = true];
      Specified by:
      hasUsePrecedencesInDisjunctiveConstraint in interface SatParametersOrBuilder
      Returns:
      Whether the usePrecedencesInDisjunctiveConstraint field is set.
    • getUsePrecedencesInDisjunctiveConstraint

      public boolean getUsePrecedencesInDisjunctiveConstraint()
       When this is true, then a disjunctive constraint will try to use the
       precedence relations between time intervals to propagate their bounds
       further. For instance if task A and B are both before C and task A and B
       are in disjunction, then we can deduce that task C must start after
       duration(A) + duration(B) instead of simply max(duration(A), duration(B)),
       provided that the start time for all task was currently zero.
       This always result in better propagation, but it is usually slow, so
       depending on the problem, turning this off may lead to a faster solution.
       
      optional bool use_precedences_in_disjunctive_constraint = 74 [default = true];
      Specified by:
      getUsePrecedencesInDisjunctiveConstraint in interface SatParametersOrBuilder
      Returns:
      The usePrecedencesInDisjunctiveConstraint.
    • hasUseOverloadCheckerInCumulativeConstraint

      public boolean hasUseOverloadCheckerInCumulativeConstraint()
       When this is true, the cumulative constraint is reinforced with overload
       checking, i.e., an additional level of reasoning based on energy. This
       additional level supplements the default level of reasoning as well as
       timetable edge finding.
       This always result in better propagation, but it is usually slow, so
       depending on the problem, turning this off may lead to a faster solution.
       
      optional bool use_overload_checker_in_cumulative_constraint = 78 [default = false];
      Specified by:
      hasUseOverloadCheckerInCumulativeConstraint in interface SatParametersOrBuilder
      Returns:
      Whether the useOverloadCheckerInCumulativeConstraint field is set.
    • getUseOverloadCheckerInCumulativeConstraint

      public boolean getUseOverloadCheckerInCumulativeConstraint()
       When this is true, the cumulative constraint is reinforced with overload
       checking, i.e., an additional level of reasoning based on energy. This
       additional level supplements the default level of reasoning as well as
       timetable edge finding.
       This always result in better propagation, but it is usually slow, so
       depending on the problem, turning this off may lead to a faster solution.
       
      optional bool use_overload_checker_in_cumulative_constraint = 78 [default = false];
      Specified by:
      getUseOverloadCheckerInCumulativeConstraint in interface SatParametersOrBuilder
      Returns:
      The useOverloadCheckerInCumulativeConstraint.
    • hasUseTimetableEdgeFindingInCumulativeConstraint

      public boolean hasUseTimetableEdgeFindingInCumulativeConstraint()
       When this is true, the cumulative constraint is reinforced with timetable
       edge finding, i.e., an additional level of reasoning based on the
       conjunction of energy and mandatory parts. This additional level
       supplements the default level of reasoning as well as overload_checker.
       This always result in better propagation, but it is usually slow, so
       depending on the problem, turning this off may lead to a faster solution.
       
      optional bool use_timetable_edge_finding_in_cumulative_constraint = 79 [default = false];
      Specified by:
      hasUseTimetableEdgeFindingInCumulativeConstraint in interface SatParametersOrBuilder
      Returns:
      Whether the useTimetableEdgeFindingInCumulativeConstraint field is set.
    • getUseTimetableEdgeFindingInCumulativeConstraint

      public boolean getUseTimetableEdgeFindingInCumulativeConstraint()
       When this is true, the cumulative constraint is reinforced with timetable
       edge finding, i.e., an additional level of reasoning based on the
       conjunction of energy and mandatory parts. This additional level
       supplements the default level of reasoning as well as overload_checker.
       This always result in better propagation, but it is usually slow, so
       depending on the problem, turning this off may lead to a faster solution.
       
      optional bool use_timetable_edge_finding_in_cumulative_constraint = 79 [default = false];
      Specified by:
      getUseTimetableEdgeFindingInCumulativeConstraint in interface SatParametersOrBuilder
      Returns:
      The useTimetableEdgeFindingInCumulativeConstraint.
    • hasUseDisjunctiveConstraintInCumulativeConstraint

      public boolean hasUseDisjunctiveConstraintInCumulativeConstraint()
       When this is true, the cumulative constraint is reinforced with propagators
       from the disjunctive constraint to improve the inference on a set of tasks
       that are disjunctive at the root of the problem. This additional level
       supplements the default level of reasoning.
       Propagators of the cumulative constraint will not be used at all if all the
       tasks are disjunctive at root node.
       This always result in better propagation, but it is usually slow, so
       depending on the problem, turning this off may lead to a faster solution.
       
      optional bool use_disjunctive_constraint_in_cumulative_constraint = 80 [default = true];
      Specified by:
      hasUseDisjunctiveConstraintInCumulativeConstraint in interface SatParametersOrBuilder
      Returns:
      Whether the useDisjunctiveConstraintInCumulativeConstraint field is set.
    • getUseDisjunctiveConstraintInCumulativeConstraint

      public boolean getUseDisjunctiveConstraintInCumulativeConstraint()
       When this is true, the cumulative constraint is reinforced with propagators
       from the disjunctive constraint to improve the inference on a set of tasks
       that are disjunctive at the root of the problem. This additional level
       supplements the default level of reasoning.
       Propagators of the cumulative constraint will not be used at all if all the
       tasks are disjunctive at root node.
       This always result in better propagation, but it is usually slow, so
       depending on the problem, turning this off may lead to a faster solution.
       
      optional bool use_disjunctive_constraint_in_cumulative_constraint = 80 [default = true];
      Specified by:
      getUseDisjunctiveConstraintInCumulativeConstraint in interface SatParametersOrBuilder
      Returns:
      The useDisjunctiveConstraintInCumulativeConstraint.
    • hasLinearizationLevel

      public boolean hasLinearizationLevel()
       A non-negative level indicating the type of constraints we consider in the
       LP relaxation. At level zero, no LP relaxation is used. At level 1, only
       the linear constraint and full encoding are added. At level 2, we also add
       all the Boolean constraints.
       
      optional int32 linearization_level = 90 [default = 1];
      Specified by:
      hasLinearizationLevel in interface SatParametersOrBuilder
      Returns:
      Whether the linearizationLevel field is set.
    • getLinearizationLevel

      public int getLinearizationLevel()
       A non-negative level indicating the type of constraints we consider in the
       LP relaxation. At level zero, no LP relaxation is used. At level 1, only
       the linear constraint and full encoding are added. At level 2, we also add
       all the Boolean constraints.
       
      optional int32 linearization_level = 90 [default = 1];
      Specified by:
      getLinearizationLevel in interface SatParametersOrBuilder
      Returns:
      The linearizationLevel.
    • hasBooleanEncodingLevel

      public boolean hasBooleanEncodingLevel()
       A non-negative level indicating how much we should try to fully encode
       Integer variables as Boolean.
       
      optional int32 boolean_encoding_level = 107 [default = 1];
      Specified by:
      hasBooleanEncodingLevel in interface SatParametersOrBuilder
      Returns:
      Whether the booleanEncodingLevel field is set.
    • getBooleanEncodingLevel

      public int getBooleanEncodingLevel()
       A non-negative level indicating how much we should try to fully encode
       Integer variables as Boolean.
       
      optional int32 boolean_encoding_level = 107 [default = 1];
      Specified by:
      getBooleanEncodingLevel in interface SatParametersOrBuilder
      Returns:
      The booleanEncodingLevel.
    • hasMaxNumCuts

      public boolean hasMaxNumCuts()
       The limit on the number of cuts in our cut pool. When this is reached we do
       not generate cuts anymore.
       TODO(user): We should probably remove this parameters, and just always
       generate cuts but only keep the best n or something.
       
      optional int32 max_num_cuts = 91 [default = 10000];
      Specified by:
      hasMaxNumCuts in interface SatParametersOrBuilder
      Returns:
      Whether the maxNumCuts field is set.
    • getMaxNumCuts

      public int getMaxNumCuts()
       The limit on the number of cuts in our cut pool. When this is reached we do
       not generate cuts anymore.
       TODO(user): We should probably remove this parameters, and just always
       generate cuts but only keep the best n or something.
       
      optional int32 max_num_cuts = 91 [default = 10000];
      Specified by:
      getMaxNumCuts in interface SatParametersOrBuilder
      Returns:
      The maxNumCuts.
    • hasOnlyAddCutsAtLevelZero

      public boolean hasOnlyAddCutsAtLevelZero()
       For the cut that can be generated at any level, this control if we only
       try to generate them at the root node.
       
      optional bool only_add_cuts_at_level_zero = 92 [default = false];
      Specified by:
      hasOnlyAddCutsAtLevelZero in interface SatParametersOrBuilder
      Returns:
      Whether the onlyAddCutsAtLevelZero field is set.
    • getOnlyAddCutsAtLevelZero

      public boolean getOnlyAddCutsAtLevelZero()
       For the cut that can be generated at any level, this control if we only
       try to generate them at the root node.
       
      optional bool only_add_cuts_at_level_zero = 92 [default = false];
      Specified by:
      getOnlyAddCutsAtLevelZero in interface SatParametersOrBuilder
      Returns:
      The onlyAddCutsAtLevelZero.
    • hasAddKnapsackCuts

      public boolean hasAddKnapsackCuts()
       Whether we generate knapsack cuts. Note that in our setting where all
       variables are integer and bounded on both side, such a cut could be applied
       to any constraint.
       
      optional bool add_knapsack_cuts = 111 [default = false];
      Specified by:
      hasAddKnapsackCuts in interface SatParametersOrBuilder
      Returns:
      Whether the addKnapsackCuts field is set.
    • getAddKnapsackCuts

      public boolean getAddKnapsackCuts()
       Whether we generate knapsack cuts. Note that in our setting where all
       variables are integer and bounded on both side, such a cut could be applied
       to any constraint.
       
      optional bool add_knapsack_cuts = 111 [default = false];
      Specified by:
      getAddKnapsackCuts in interface SatParametersOrBuilder
      Returns:
      The addKnapsackCuts.
    • hasAddCgCuts

      public boolean hasAddCgCuts()
       Whether we generate and add Chvatal-Gomory cuts to the LP at root node.
       Note that for now, this is not heavily tuned.
       
      optional bool add_cg_cuts = 117 [default = true];
      Specified by:
      hasAddCgCuts in interface SatParametersOrBuilder
      Returns:
      Whether the addCgCuts field is set.
    • getAddCgCuts

      public boolean getAddCgCuts()
       Whether we generate and add Chvatal-Gomory cuts to the LP at root node.
       Note that for now, this is not heavily tuned.
       
      optional bool add_cg_cuts = 117 [default = true];
      Specified by:
      getAddCgCuts in interface SatParametersOrBuilder
      Returns:
      The addCgCuts.
    • hasAddMirCuts

      public boolean hasAddMirCuts()
       Whether we generate MIR cuts at root node.
       Note that for now, this is not heavily tuned.
       
      optional bool add_mir_cuts = 120 [default = true];
      Specified by:
      hasAddMirCuts in interface SatParametersOrBuilder
      Returns:
      Whether the addMirCuts field is set.
    • getAddMirCuts

      public boolean getAddMirCuts()
       Whether we generate MIR cuts at root node.
       Note that for now, this is not heavily tuned.
       
      optional bool add_mir_cuts = 120 [default = true];
      Specified by:
      getAddMirCuts in interface SatParametersOrBuilder
      Returns:
      The addMirCuts.
    • hasAddZeroHalfCuts

      public boolean hasAddZeroHalfCuts()
       Whether we generate Zero-Half cuts at root node.
       Note that for now, this is not heavily tuned.
       
      optional bool add_zero_half_cuts = 169 [default = true];
      Specified by:
      hasAddZeroHalfCuts in interface SatParametersOrBuilder
      Returns:
      Whether the addZeroHalfCuts field is set.
    • getAddZeroHalfCuts

      public boolean getAddZeroHalfCuts()
       Whether we generate Zero-Half cuts at root node.
       Note that for now, this is not heavily tuned.
       
      optional bool add_zero_half_cuts = 169 [default = true];
      Specified by:
      getAddZeroHalfCuts in interface SatParametersOrBuilder
      Returns:
      The addZeroHalfCuts.
    • hasAddCliqueCuts

      public boolean hasAddCliqueCuts()
       Whether we generate clique cuts from the binary implication graph. Note
       that as the search goes on, this graph will contains new binary clauses
       learned by the SAT engine.
       
      optional bool add_clique_cuts = 172 [default = true];
      Specified by:
      hasAddCliqueCuts in interface SatParametersOrBuilder
      Returns:
      Whether the addCliqueCuts field is set.
    • getAddCliqueCuts

      public boolean getAddCliqueCuts()
       Whether we generate clique cuts from the binary implication graph. Note
       that as the search goes on, this graph will contains new binary clauses
       learned by the SAT engine.
       
      optional bool add_clique_cuts = 172 [default = true];
      Specified by:
      getAddCliqueCuts in interface SatParametersOrBuilder
      Returns:
      The addCliqueCuts.
    • hasMaxAllDiffCutSize

      public boolean hasMaxAllDiffCutSize()
       Cut generator for all diffs can add too many cuts for large all_diff
       constraints. This parameter restricts the large all_diff constraints to
       have a cut generator.
       
      optional int32 max_all_diff_cut_size = 148 [default = 7];
      Specified by:
      hasMaxAllDiffCutSize in interface SatParametersOrBuilder
      Returns:
      Whether the maxAllDiffCutSize field is set.
    • getMaxAllDiffCutSize

      public int getMaxAllDiffCutSize()
       Cut generator for all diffs can add too many cuts for large all_diff
       constraints. This parameter restricts the large all_diff constraints to
       have a cut generator.
       
      optional int32 max_all_diff_cut_size = 148 [default = 7];
      Specified by:
      getMaxAllDiffCutSize in interface SatParametersOrBuilder
      Returns:
      The maxAllDiffCutSize.
    • hasAddLinMaxCuts

      public boolean hasAddLinMaxCuts()
       For the lin max constraints, generates the cuts described in "Strong
       mixed-integer programming formulations for trained neural networks" by Ross
       Anderson et. (https://arxiv.org/pdf/1811.01988.pdf)
       
      optional bool add_lin_max_cuts = 152 [default = true];
      Specified by:
      hasAddLinMaxCuts in interface SatParametersOrBuilder
      Returns:
      Whether the addLinMaxCuts field is set.
    • getAddLinMaxCuts

      public boolean getAddLinMaxCuts()
       For the lin max constraints, generates the cuts described in "Strong
       mixed-integer programming formulations for trained neural networks" by Ross
       Anderson et. (https://arxiv.org/pdf/1811.01988.pdf)
       
      optional bool add_lin_max_cuts = 152 [default = true];
      Specified by:
      getAddLinMaxCuts in interface SatParametersOrBuilder
      Returns:
      The addLinMaxCuts.
    • hasMaxIntegerRoundingScaling

      public boolean hasMaxIntegerRoundingScaling()
       In the integer rounding procedure used for MIR and Gomory cut, the maximum
       "scaling" we use (must be positive). The lower this is, the lower the
       integer coefficients of the cut will be. Note that cut generated by lower
       values are not necessarily worse than cut generated by larger value. There
       is no strict dominance relationship.
       Setting this to 2 result in the "strong fractional rouding" of Letchford
       and Lodi.
       
      optional int32 max_integer_rounding_scaling = 119 [default = 600];
      Specified by:
      hasMaxIntegerRoundingScaling in interface SatParametersOrBuilder
      Returns:
      Whether the maxIntegerRoundingScaling field is set.
    • getMaxIntegerRoundingScaling

      public int getMaxIntegerRoundingScaling()
       In the integer rounding procedure used for MIR and Gomory cut, the maximum
       "scaling" we use (must be positive). The lower this is, the lower the
       integer coefficients of the cut will be. Note that cut generated by lower
       values are not necessarily worse than cut generated by larger value. There
       is no strict dominance relationship.
       Setting this to 2 result in the "strong fractional rouding" of Letchford
       and Lodi.
       
      optional int32 max_integer_rounding_scaling = 119 [default = 600];
      Specified by:
      getMaxIntegerRoundingScaling in interface SatParametersOrBuilder
      Returns:
      The maxIntegerRoundingScaling.
    • hasAddLpConstraintsLazily

      public boolean hasAddLpConstraintsLazily()
       If true, we start by an empty LP, and only add constraints not satisfied
       by the current LP solution batch by batch. A constraint that is only added
       like this is known as a "lazy" constraint in the literature, except that we
       currently consider all constraints as lazy here.
       
      optional bool add_lp_constraints_lazily = 112 [default = true];
      Specified by:
      hasAddLpConstraintsLazily in interface SatParametersOrBuilder
      Returns:
      Whether the addLpConstraintsLazily field is set.
    • getAddLpConstraintsLazily

      public boolean getAddLpConstraintsLazily()
       If true, we start by an empty LP, and only add constraints not satisfied
       by the current LP solution batch by batch. A constraint that is only added
       like this is known as a "lazy" constraint in the literature, except that we
       currently consider all constraints as lazy here.
       
      optional bool add_lp_constraints_lazily = 112 [default = true];
      Specified by:
      getAddLpConstraintsLazily in interface SatParametersOrBuilder
      Returns:
      The addLpConstraintsLazily.
    • hasMinOrthogonalityForLpConstraints

      public boolean hasMinOrthogonalityForLpConstraints()
       While adding constraints, skip the constraints which have orthogonality
       less than 'min_orthogonality_for_lp_constraints' with already added
       constraints during current call. Orthogonality is defined as 1 -
       cosine(vector angle between constraints). A value of zero disable this
       feature.
       
      optional double min_orthogonality_for_lp_constraints = 115 [default = 0.05];
      Specified by:
      hasMinOrthogonalityForLpConstraints in interface SatParametersOrBuilder
      Returns:
      Whether the minOrthogonalityForLpConstraints field is set.
    • getMinOrthogonalityForLpConstraints

      public double getMinOrthogonalityForLpConstraints()
       While adding constraints, skip the constraints which have orthogonality
       less than 'min_orthogonality_for_lp_constraints' with already added
       constraints during current call. Orthogonality is defined as 1 -
       cosine(vector angle between constraints). A value of zero disable this
       feature.
       
      optional double min_orthogonality_for_lp_constraints = 115 [default = 0.05];
      Specified by:
      getMinOrthogonalityForLpConstraints in interface SatParametersOrBuilder
      Returns:
      The minOrthogonalityForLpConstraints.
    • hasMaxCutRoundsAtLevelZero

      public boolean hasMaxCutRoundsAtLevelZero()
       Max number of time we perform cut generation and resolve the LP at level 0.
       
      optional int32 max_cut_rounds_at_level_zero = 154 [default = 1];
      Specified by:
      hasMaxCutRoundsAtLevelZero in interface SatParametersOrBuilder
      Returns:
      Whether the maxCutRoundsAtLevelZero field is set.
    • getMaxCutRoundsAtLevelZero

      public int getMaxCutRoundsAtLevelZero()
       Max number of time we perform cut generation and resolve the LP at level 0.
       
      optional int32 max_cut_rounds_at_level_zero = 154 [default = 1];
      Specified by:
      getMaxCutRoundsAtLevelZero in interface SatParametersOrBuilder
      Returns:
      The maxCutRoundsAtLevelZero.
    • hasMaxConsecutiveInactiveCount

      public boolean hasMaxConsecutiveInactiveCount()
       If a constraint/cut in LP is not active for that many consecutive OPTIMAL
       solves, remove it from the LP. Note that it might be added again later if
       it become violated by the current LP solution.
       
      optional int32 max_consecutive_inactive_count = 121 [default = 100];
      Specified by:
      hasMaxConsecutiveInactiveCount in interface SatParametersOrBuilder
      Returns:
      Whether the maxConsecutiveInactiveCount field is set.
    • getMaxConsecutiveInactiveCount

      public int getMaxConsecutiveInactiveCount()
       If a constraint/cut in LP is not active for that many consecutive OPTIMAL
       solves, remove it from the LP. Note that it might be added again later if
       it become violated by the current LP solution.
       
      optional int32 max_consecutive_inactive_count = 121 [default = 100];
      Specified by:
      getMaxConsecutiveInactiveCount in interface SatParametersOrBuilder
      Returns:
      The maxConsecutiveInactiveCount.
    • hasCutMaxActiveCountValue

      public boolean hasCutMaxActiveCountValue()
       These parameters are similar to sat clause management activity parameters.
       They are effective only if the number of generated cuts exceed the storage
       limit. Default values are based on a few experiments on miplib instances.
       
      optional double cut_max_active_count_value = 155 [default = 10000000000];
      Specified by:
      hasCutMaxActiveCountValue in interface SatParametersOrBuilder
      Returns:
      Whether the cutMaxActiveCountValue field is set.
    • getCutMaxActiveCountValue

      public double getCutMaxActiveCountValue()
       These parameters are similar to sat clause management activity parameters.
       They are effective only if the number of generated cuts exceed the storage
       limit. Default values are based on a few experiments on miplib instances.
       
      optional double cut_max_active_count_value = 155 [default = 10000000000];
      Specified by:
      getCutMaxActiveCountValue in interface SatParametersOrBuilder
      Returns:
      The cutMaxActiveCountValue.
    • hasCutActiveCountDecay

      public boolean hasCutActiveCountDecay()
      optional double cut_active_count_decay = 156 [default = 0.8];
      Specified by:
      hasCutActiveCountDecay in interface SatParametersOrBuilder
      Returns:
      Whether the cutActiveCountDecay field is set.
    • getCutActiveCountDecay

      public double getCutActiveCountDecay()
      optional double cut_active_count_decay = 156 [default = 0.8];
      Specified by:
      getCutActiveCountDecay in interface SatParametersOrBuilder
      Returns:
      The cutActiveCountDecay.
    • hasCutCleanupTarget

      public boolean hasCutCleanupTarget()
       Target number of constraints to remove during cleanup.
       
      optional int32 cut_cleanup_target = 157 [default = 1000];
      Specified by:
      hasCutCleanupTarget in interface SatParametersOrBuilder
      Returns:
      Whether the cutCleanupTarget field is set.
    • getCutCleanupTarget

      public int getCutCleanupTarget()
       Target number of constraints to remove during cleanup.
       
      optional int32 cut_cleanup_target = 157 [default = 1000];
      Specified by:
      getCutCleanupTarget in interface SatParametersOrBuilder
      Returns:
      The cutCleanupTarget.
    • hasNewConstraintsBatchSize

      public boolean hasNewConstraintsBatchSize()
       Add that many lazy constraints (or cuts) at once in the LP. Note that at
       the beginning of the solve, we do add more than this.
       
      optional int32 new_constraints_batch_size = 122 [default = 50];
      Specified by:
      hasNewConstraintsBatchSize in interface SatParametersOrBuilder
      Returns:
      Whether the newConstraintsBatchSize field is set.
    • getNewConstraintsBatchSize

      public int getNewConstraintsBatchSize()
       Add that many lazy constraints (or cuts) at once in the LP. Note that at
       the beginning of the solve, we do add more than this.
       
      optional int32 new_constraints_batch_size = 122 [default = 50];
      Specified by:
      getNewConstraintsBatchSize in interface SatParametersOrBuilder
      Returns:
      The newConstraintsBatchSize.
    • hasSearchBranching

      public boolean hasSearchBranching()
      optional .operations_research.sat.SatParameters.SearchBranching search_branching = 82 [default = AUTOMATIC_SEARCH];
      Specified by:
      hasSearchBranching in interface SatParametersOrBuilder
      Returns:
      Whether the searchBranching field is set.
    • getSearchBranching

      public SatParameters.SearchBranching getSearchBranching()
      optional .operations_research.sat.SatParameters.SearchBranching search_branching = 82 [default = AUTOMATIC_SEARCH];
      Specified by:
      getSearchBranching in interface SatParametersOrBuilder
      Returns:
      The searchBranching.
    • hasHintConflictLimit

      public boolean hasHintConflictLimit()
       Conflict limit used in the phase that exploit the solution hint.
       
      optional int32 hint_conflict_limit = 153 [default = 10];
      Specified by:
      hasHintConflictLimit in interface SatParametersOrBuilder
      Returns:
      Whether the hintConflictLimit field is set.
    • getHintConflictLimit

      public int getHintConflictLimit()
       Conflict limit used in the phase that exploit the solution hint.
       
      optional int32 hint_conflict_limit = 153 [default = 10];
      Specified by:
      getHintConflictLimit in interface SatParametersOrBuilder
      Returns:
      The hintConflictLimit.
    • hasRepairHint

      public boolean hasRepairHint()
       If true, the solver tries to repair the solution given in the hint. This
       search terminates after the 'hint_conflict_limit' is reached and the solver
       switches to regular search. If false, then  we do a FIXED_SEARCH using the
       hint until the hint_conflict_limit is reached.
       
      optional bool repair_hint = 167 [default = false];
      Specified by:
      hasRepairHint in interface SatParametersOrBuilder
      Returns:
      Whether the repairHint field is set.
    • getRepairHint

      public boolean getRepairHint()
       If true, the solver tries to repair the solution given in the hint. This
       search terminates after the 'hint_conflict_limit' is reached and the solver
       switches to regular search. If false, then  we do a FIXED_SEARCH using the
       hint until the hint_conflict_limit is reached.
       
      optional bool repair_hint = 167 [default = false];
      Specified by:
      getRepairHint in interface SatParametersOrBuilder
      Returns:
      The repairHint.
    • hasExploitIntegerLpSolution

      public boolean hasExploitIntegerLpSolution()
       If true and the Lp relaxation of the problem has an integer optimal
       solution, try to exploit it. Note that since the LP relaxation may not
       contain all the constraints, such a solution is not necessarily a solution
       of the full problem.
       
      optional bool exploit_integer_lp_solution = 94 [default = true];
      Specified by:
      hasExploitIntegerLpSolution in interface SatParametersOrBuilder
      Returns:
      Whether the exploitIntegerLpSolution field is set.
    • getExploitIntegerLpSolution

      public boolean getExploitIntegerLpSolution()
       If true and the Lp relaxation of the problem has an integer optimal
       solution, try to exploit it. Note that since the LP relaxation may not
       contain all the constraints, such a solution is not necessarily a solution
       of the full problem.
       
      optional bool exploit_integer_lp_solution = 94 [default = true];
      Specified by:
      getExploitIntegerLpSolution in interface SatParametersOrBuilder
      Returns:
      The exploitIntegerLpSolution.
    • hasExploitAllLpSolution

      public boolean hasExploitAllLpSolution()
       If true and the Lp relaxation of the problem has a solution, try to exploit
       it. This is same as above except in this case the lp solution might not be
       an integer solution.
       
      optional bool exploit_all_lp_solution = 116 [default = true];
      Specified by:
      hasExploitAllLpSolution in interface SatParametersOrBuilder
      Returns:
      Whether the exploitAllLpSolution field is set.
    • getExploitAllLpSolution

      public boolean getExploitAllLpSolution()
       If true and the Lp relaxation of the problem has a solution, try to exploit
       it. This is same as above except in this case the lp solution might not be
       an integer solution.
       
      optional bool exploit_all_lp_solution = 116 [default = true];
      Specified by:
      getExploitAllLpSolution in interface SatParametersOrBuilder
      Returns:
      The exploitAllLpSolution.
    • hasExploitBestSolution

      public boolean hasExploitBestSolution()
       When branching on a variable, follow the last best solution value.
       
      optional bool exploit_best_solution = 130 [default = false];
      Specified by:
      hasExploitBestSolution in interface SatParametersOrBuilder
      Returns:
      Whether the exploitBestSolution field is set.
    • getExploitBestSolution

      public boolean getExploitBestSolution()
       When branching on a variable, follow the last best solution value.
       
      optional bool exploit_best_solution = 130 [default = false];
      Specified by:
      getExploitBestSolution in interface SatParametersOrBuilder
      Returns:
      The exploitBestSolution.
    • hasExploitRelaxationSolution

      public boolean hasExploitRelaxationSolution()
       When branching on a variable, follow the last best relaxation solution
       value. We use the relaxation with the tightest bound on the objective as
       the best relaxation solution.
       
      optional bool exploit_relaxation_solution = 161 [default = false];
      Specified by:
      hasExploitRelaxationSolution in interface SatParametersOrBuilder
      Returns:
      Whether the exploitRelaxationSolution field is set.
    • getExploitRelaxationSolution

      public boolean getExploitRelaxationSolution()
       When branching on a variable, follow the last best relaxation solution
       value. We use the relaxation with the tightest bound on the objective as
       the best relaxation solution.
       
      optional bool exploit_relaxation_solution = 161 [default = false];
      Specified by:
      getExploitRelaxationSolution in interface SatParametersOrBuilder
      Returns:
      The exploitRelaxationSolution.
    • hasExploitObjective

      public boolean hasExploitObjective()
       When branching an a variable that directly affect the objective,
       branch on the value that lead to the best objective first.
       
      optional bool exploit_objective = 131 [default = true];
      Specified by:
      hasExploitObjective in interface SatParametersOrBuilder
      Returns:
      Whether the exploitObjective field is set.
    • getExploitObjective

      public boolean getExploitObjective()
       When branching an a variable that directly affect the objective,
       branch on the value that lead to the best objective first.
       
      optional bool exploit_objective = 131 [default = true];
      Specified by:
      getExploitObjective in interface SatParametersOrBuilder
      Returns:
      The exploitObjective.
    • hasProbingPeriodAtRoot

      public boolean hasProbingPeriodAtRoot()
       If set at zero (the default), it is disabled. Otherwise the solver attempts
       probing at every 'probing_period' root node. Period of 1 enables probing at
       every root node.
       
      optional int64 probing_period_at_root = 142 [default = 0];
      Specified by:
      hasProbingPeriodAtRoot in interface SatParametersOrBuilder
      Returns:
      Whether the probingPeriodAtRoot field is set.
    • getProbingPeriodAtRoot

      public long getProbingPeriodAtRoot()
       If set at zero (the default), it is disabled. Otherwise the solver attempts
       probing at every 'probing_period' root node. Period of 1 enables probing at
       every root node.
       
      optional int64 probing_period_at_root = 142 [default = 0];
      Specified by:
      getProbingPeriodAtRoot in interface SatParametersOrBuilder
      Returns:
      The probingPeriodAtRoot.
    • hasUseProbingSearch

      public boolean hasUseProbingSearch()
       If true, search will continuously probe Boolean variables, and integer
       variable bounds.
       
      optional bool use_probing_search = 176 [default = false];
      Specified by:
      hasUseProbingSearch in interface SatParametersOrBuilder
      Returns:
      Whether the useProbingSearch field is set.
    • getUseProbingSearch

      public boolean getUseProbingSearch()
       If true, search will continuously probe Boolean variables, and integer
       variable bounds.
       
      optional bool use_probing_search = 176 [default = false];
      Specified by:
      getUseProbingSearch in interface SatParametersOrBuilder
      Returns:
      The useProbingSearch.
    • hasPseudoCostReliabilityThreshold

      public boolean hasPseudoCostReliabilityThreshold()
       The solver ignores the pseudo costs of variables with number of recordings
       less than this threshold.
       
      optional int64 pseudo_cost_reliability_threshold = 123 [default = 100];
      Specified by:
      hasPseudoCostReliabilityThreshold in interface SatParametersOrBuilder
      Returns:
      Whether the pseudoCostReliabilityThreshold field is set.
    • getPseudoCostReliabilityThreshold

      public long getPseudoCostReliabilityThreshold()
       The solver ignores the pseudo costs of variables with number of recordings
       less than this threshold.
       
      optional int64 pseudo_cost_reliability_threshold = 123 [default = 100];
      Specified by:
      getPseudoCostReliabilityThreshold in interface SatParametersOrBuilder
      Returns:
      The pseudoCostReliabilityThreshold.
    • hasOptimizeWithCore

      public boolean hasOptimizeWithCore()
       The default optimization method is a simple "linear scan", each time trying
       to find a better solution than the previous one. If this is true, then we
       use a core-based approach (like in max-SAT) when we try to increase the
       lower bound instead.
       
      optional bool optimize_with_core = 83 [default = false];
      Specified by:
      hasOptimizeWithCore in interface SatParametersOrBuilder
      Returns:
      Whether the optimizeWithCore field is set.
    • getOptimizeWithCore

      public boolean getOptimizeWithCore()
       The default optimization method is a simple "linear scan", each time trying
       to find a better solution than the previous one. If this is true, then we
       use a core-based approach (like in max-SAT) when we try to increase the
       lower bound instead.
       
      optional bool optimize_with_core = 83 [default = false];
      Specified by:
      getOptimizeWithCore in interface SatParametersOrBuilder
      Returns:
      The optimizeWithCore.
    • hasBinarySearchNumConflicts

      public boolean hasBinarySearchNumConflicts()
       If non-negative, perform a binary search on the objective variable in order
       to find an [min, max] interval outside of which the solver proved unsat/sat
       under this amount of conflict. This can quickly reduce the objective domain
       on some problems.
       
      optional int32 binary_search_num_conflicts = 99 [default = -1];
      Specified by:
      hasBinarySearchNumConflicts in interface SatParametersOrBuilder
      Returns:
      Whether the binarySearchNumConflicts field is set.
    • getBinarySearchNumConflicts

      public int getBinarySearchNumConflicts()
       If non-negative, perform a binary search on the objective variable in order
       to find an [min, max] interval outside of which the solver proved unsat/sat
       under this amount of conflict. This can quickly reduce the objective domain
       on some problems.
       
      optional int32 binary_search_num_conflicts = 99 [default = -1];
      Specified by:
      getBinarySearchNumConflicts in interface SatParametersOrBuilder
      Returns:
      The binarySearchNumConflicts.
    • hasOptimizeWithMaxHs

      public boolean hasOptimizeWithMaxHs()
       This has no effect if optimize_with_core is false. If true, use a different
       core-based algorithm similar to the max-HS algo for max-SAT. This is a
       hybrid MIP/CP approach and it uses a MIP solver in addition to the CP/SAT
       one. This is also related to the PhD work of tobyodavies@
       "Automatic Logic-Based Benders Decomposition with MiniZinc"
       http://aaai.org/ocs/index.php/AAAI/AAAI17/paper/view/14489
       
      optional bool optimize_with_max_hs = 85 [default = false];
      Specified by:
      hasOptimizeWithMaxHs in interface SatParametersOrBuilder
      Returns:
      Whether the optimizeWithMaxHs field is set.
    • getOptimizeWithMaxHs

      public boolean getOptimizeWithMaxHs()
       This has no effect if optimize_with_core is false. If true, use a different
       core-based algorithm similar to the max-HS algo for max-SAT. This is a
       hybrid MIP/CP approach and it uses a MIP solver in addition to the CP/SAT
       one. This is also related to the PhD work of tobyodavies@
       "Automatic Logic-Based Benders Decomposition with MiniZinc"
       http://aaai.org/ocs/index.php/AAAI/AAAI17/paper/view/14489
       
      optional bool optimize_with_max_hs = 85 [default = false];
      Specified by:
      getOptimizeWithMaxHs in interface SatParametersOrBuilder
      Returns:
      The optimizeWithMaxHs.
    • hasEnumerateAllSolutions

      public boolean hasEnumerateAllSolutions()
       Whether we enumerate all solutions of a problem without objective. Note
       that setting this to true automatically disable the presolve. This is
       because the presolve rules only guarantee the existence of one feasible
       solution to the presolved problem.
       TODO(user): Do not disable the presolve and let the user choose what
       behavior is best by setting keep_all_feasible_solutions_in_presolve.
       
      optional bool enumerate_all_solutions = 87 [default = false];
      Specified by:
      hasEnumerateAllSolutions in interface SatParametersOrBuilder
      Returns:
      Whether the enumerateAllSolutions field is set.
    • getEnumerateAllSolutions

      public boolean getEnumerateAllSolutions()
       Whether we enumerate all solutions of a problem without objective. Note
       that setting this to true automatically disable the presolve. This is
       because the presolve rules only guarantee the existence of one feasible
       solution to the presolved problem.
       TODO(user): Do not disable the presolve and let the user choose what
       behavior is best by setting keep_all_feasible_solutions_in_presolve.
       
      optional bool enumerate_all_solutions = 87 [default = false];
      Specified by:
      getEnumerateAllSolutions in interface SatParametersOrBuilder
      Returns:
      The enumerateAllSolutions.
    • hasKeepAllFeasibleSolutionsInPresolve

      public boolean hasKeepAllFeasibleSolutionsInPresolve()
       If true, we disable the presolve reductions that remove feasible solutions
       from the search space. Such solution are usually dominated by a "better"
       solution that is kept, but depending on the situation, we might want to
       keep all solutions.
       A trivial example is when a variable is unused. If this is true, then the
       presolve will not fix it to an arbitrary value and it will stay in the
       search space.
       
      optional bool keep_all_feasible_solutions_in_presolve = 173 [default = false];
      Specified by:
      hasKeepAllFeasibleSolutionsInPresolve in interface SatParametersOrBuilder
      Returns:
      Whether the keepAllFeasibleSolutionsInPresolve field is set.
    • getKeepAllFeasibleSolutionsInPresolve

      public boolean getKeepAllFeasibleSolutionsInPresolve()
       If true, we disable the presolve reductions that remove feasible solutions
       from the search space. Such solution are usually dominated by a "better"
       solution that is kept, but depending on the situation, we might want to
       keep all solutions.
       A trivial example is when a variable is unused. If this is true, then the
       presolve will not fix it to an arbitrary value and it will stay in the
       search space.
       
      optional bool keep_all_feasible_solutions_in_presolve = 173 [default = false];
      Specified by:
      getKeepAllFeasibleSolutionsInPresolve in interface SatParametersOrBuilder
      Returns:
      The keepAllFeasibleSolutionsInPresolve.
    • hasFillTightenedDomainsInResponse

      public boolean hasFillTightenedDomainsInResponse()
       If true, add information about the derived variable domains to the
       CpSolverResponse. It is an option because it makes the response slighly
       bigger and there is a bit more work involved during the postsolve to
       construct it, but it should still have a low overhead. See the
       tightened_variables field in CpSolverResponse for more details.
       
      optional bool fill_tightened_domains_in_response = 132 [default = false];
      Specified by:
      hasFillTightenedDomainsInResponse in interface SatParametersOrBuilder
      Returns:
      Whether the fillTightenedDomainsInResponse field is set.
    • getFillTightenedDomainsInResponse

      public boolean getFillTightenedDomainsInResponse()
       If true, add information about the derived variable domains to the
       CpSolverResponse. It is an option because it makes the response slighly
       bigger and there is a bit more work involved during the postsolve to
       construct it, but it should still have a low overhead. See the
       tightened_variables field in CpSolverResponse for more details.
       
      optional bool fill_tightened_domains_in_response = 132 [default = false];
      Specified by:
      getFillTightenedDomainsInResponse in interface SatParametersOrBuilder
      Returns:
      The fillTightenedDomainsInResponse.
    • hasInstantiateAllVariables

      public boolean hasInstantiateAllVariables()
       If true, the solver will add a default integer branching strategy to the
       already defined search strategy.
       
      optional bool instantiate_all_variables = 106 [default = true];
      Specified by:
      hasInstantiateAllVariables in interface SatParametersOrBuilder
      Returns:
      Whether the instantiateAllVariables field is set.
    • getInstantiateAllVariables

      public boolean getInstantiateAllVariables()
       If true, the solver will add a default integer branching strategy to the
       already defined search strategy.
       
      optional bool instantiate_all_variables = 106 [default = true];
      Specified by:
      getInstantiateAllVariables in interface SatParametersOrBuilder
      Returns:
      The instantiateAllVariables.
    • hasAutoDetectGreaterThanAtLeastOneOf

      public boolean hasAutoDetectGreaterThanAtLeastOneOf()
       If true, then the precedences propagator try to detect for each variable if
       it has a set of "optional incoming arc" for which at least one of them is
       present. This is usually useful to have but can be slow on model with a lot
       of precedence.
       
      optional bool auto_detect_greater_than_at_least_one_of = 95 [default = true];
      Specified by:
      hasAutoDetectGreaterThanAtLeastOneOf in interface SatParametersOrBuilder
      Returns:
      Whether the autoDetectGreaterThanAtLeastOneOf field is set.
    • getAutoDetectGreaterThanAtLeastOneOf

      public boolean getAutoDetectGreaterThanAtLeastOneOf()
       If true, then the precedences propagator try to detect for each variable if
       it has a set of "optional incoming arc" for which at least one of them is
       present. This is usually useful to have but can be slow on model with a lot
       of precedence.
       
      optional bool auto_detect_greater_than_at_least_one_of = 95 [default = true];
      Specified by:
      getAutoDetectGreaterThanAtLeastOneOf in interface SatParametersOrBuilder
      Returns:
      The autoDetectGreaterThanAtLeastOneOf.
    • hasStopAfterFirstSolution

      public boolean hasStopAfterFirstSolution()
       For an optimization problem, stop the solver as soon as we have a solution.
       
      optional bool stop_after_first_solution = 98 [default = false];
      Specified by:
      hasStopAfterFirstSolution in interface SatParametersOrBuilder
      Returns:
      Whether the stopAfterFirstSolution field is set.
    • getStopAfterFirstSolution

      public boolean getStopAfterFirstSolution()
       For an optimization problem, stop the solver as soon as we have a solution.
       
      optional bool stop_after_first_solution = 98 [default = false];
      Specified by:
      getStopAfterFirstSolution in interface SatParametersOrBuilder
      Returns:
      The stopAfterFirstSolution.
    • hasStopAfterPresolve

      public boolean hasStopAfterPresolve()
       Mainly used when improving the presolver. When true, stops the solver after
       the presolve is complete.
       
      optional bool stop_after_presolve = 149 [default = false];
      Specified by:
      hasStopAfterPresolve in interface SatParametersOrBuilder
      Returns:
      Whether the stopAfterPresolve field is set.
    • getStopAfterPresolve

      public boolean getStopAfterPresolve()
       Mainly used when improving the presolver. When true, stops the solver after
       the presolve is complete.
       
      optional bool stop_after_presolve = 149 [default = false];
      Specified by:
      getStopAfterPresolve in interface SatParametersOrBuilder
      Returns:
      The stopAfterPresolve.
    • hasNumSearchWorkers

      public boolean hasNumSearchWorkers()
       Specify the number of parallel workers to use during search.
       A number <= 1 means no parallelism.
       As of 2020-04-10, if you're using SAT via MPSolver (to solve integer
       programs) this field is overridden with a value of 8, if the field is not
       set *explicitly*. Thus, always set this field explicitly or via
       MPSolver::SetNumThreads().
       
      optional int32 num_search_workers = 100 [default = 1];
      Specified by:
      hasNumSearchWorkers in interface SatParametersOrBuilder
      Returns:
      Whether the numSearchWorkers field is set.
    • getNumSearchWorkers

      public int getNumSearchWorkers()
       Specify the number of parallel workers to use during search.
       A number <= 1 means no parallelism.
       As of 2020-04-10, if you're using SAT via MPSolver (to solve integer
       programs) this field is overridden with a value of 8, if the field is not
       set *explicitly*. Thus, always set this field explicitly or via
       MPSolver::SetNumThreads().
       
      optional int32 num_search_workers = 100 [default = 1];
      Specified by:
      getNumSearchWorkers in interface SatParametersOrBuilder
      Returns:
      The numSearchWorkers.
    • hasInterleaveSearch

      public boolean hasInterleaveSearch()
       Experimental. If this is true, then we interleave all our major search
       strategy and distribute the work amongst num_search_workers.
       The search is deterministic (independently of num_search_workers!), and we
       schedule and wait for interleave_batch_size task to be completed before
       synchronizing and scheduling the next batch of tasks.
       
      optional bool interleave_search = 136 [default = false];
      Specified by:
      hasInterleaveSearch in interface SatParametersOrBuilder
      Returns:
      Whether the interleaveSearch field is set.
    • getInterleaveSearch

      public boolean getInterleaveSearch()
       Experimental. If this is true, then we interleave all our major search
       strategy and distribute the work amongst num_search_workers.
       The search is deterministic (independently of num_search_workers!), and we
       schedule and wait for interleave_batch_size task to be completed before
       synchronizing and scheduling the next batch of tasks.
       
      optional bool interleave_search = 136 [default = false];
      Specified by:
      getInterleaveSearch in interface SatParametersOrBuilder
      Returns:
      The interleaveSearch.
    • hasInterleaveBatchSize

      public boolean hasInterleaveBatchSize()
      optional int32 interleave_batch_size = 134 [default = 1];
      Specified by:
      hasInterleaveBatchSize in interface SatParametersOrBuilder
      Returns:
      Whether the interleaveBatchSize field is set.
    • getInterleaveBatchSize

      public int getInterleaveBatchSize()
      optional int32 interleave_batch_size = 134 [default = 1];
      Specified by:
      getInterleaveBatchSize in interface SatParametersOrBuilder
      Returns:
      The interleaveBatchSize.
    • hasReduceMemoryUsageInInterleaveMode

      public boolean hasReduceMemoryUsageInInterleaveMode()
       Temporary parameter until the memory usage is more optimized.
       
      optional bool reduce_memory_usage_in_interleave_mode = 141 [default = false];
      Specified by:
      hasReduceMemoryUsageInInterleaveMode in interface SatParametersOrBuilder
      Returns:
      Whether the reduceMemoryUsageInInterleaveMode field is set.
    • getReduceMemoryUsageInInterleaveMode

      public boolean getReduceMemoryUsageInInterleaveMode()
       Temporary parameter until the memory usage is more optimized.
       
      optional bool reduce_memory_usage_in_interleave_mode = 141 [default = false];
      Specified by:
      getReduceMemoryUsageInInterleaveMode in interface SatParametersOrBuilder
      Returns:
      The reduceMemoryUsageInInterleaveMode.
    • hasShareObjectiveBounds

      public boolean hasShareObjectiveBounds()
       Allows objective sharing between workers.
       
      optional bool share_objective_bounds = 113 [default = true];
      Specified by:
      hasShareObjectiveBounds in interface SatParametersOrBuilder
      Returns:
      Whether the shareObjectiveBounds field is set.
    • getShareObjectiveBounds

      public boolean getShareObjectiveBounds()
       Allows objective sharing between workers.
       
      optional bool share_objective_bounds = 113 [default = true];
      Specified by:
      getShareObjectiveBounds in interface SatParametersOrBuilder
      Returns:
      The shareObjectiveBounds.
    • hasShareLevelZeroBounds

      public boolean hasShareLevelZeroBounds()
       Allows sharing of the bounds of modified variables at level 0.
       
      optional bool share_level_zero_bounds = 114 [default = true];
      Specified by:
      hasShareLevelZeroBounds in interface SatParametersOrBuilder
      Returns:
      Whether the shareLevelZeroBounds field is set.
    • getShareLevelZeroBounds

      public boolean getShareLevelZeroBounds()
       Allows sharing of the bounds of modified variables at level 0.
       
      optional bool share_level_zero_bounds = 114 [default = true];
      Specified by:
      getShareLevelZeroBounds in interface SatParametersOrBuilder
      Returns:
      The shareLevelZeroBounds.
    • hasUseLnsOnly

      public boolean hasUseLnsOnly()
       LNS parameters.
       
      optional bool use_lns_only = 101 [default = false];
      Specified by:
      hasUseLnsOnly in interface SatParametersOrBuilder
      Returns:
      Whether the useLnsOnly field is set.
    • getUseLnsOnly

      public boolean getUseLnsOnly()
       LNS parameters.
       
      optional bool use_lns_only = 101 [default = false];
      Specified by:
      getUseLnsOnly in interface SatParametersOrBuilder
      Returns:
      The useLnsOnly.
    • hasLnsFocusOnDecisionVariables

      public boolean hasLnsFocusOnDecisionVariables()
      optional bool lns_focus_on_decision_variables = 105 [default = false];
      Specified by:
      hasLnsFocusOnDecisionVariables in interface SatParametersOrBuilder
      Returns:
      Whether the lnsFocusOnDecisionVariables field is set.
    • getLnsFocusOnDecisionVariables

      public boolean getLnsFocusOnDecisionVariables()
      optional bool lns_focus_on_decision_variables = 105 [default = false];
      Specified by:
      getLnsFocusOnDecisionVariables in interface SatParametersOrBuilder
      Returns:
      The lnsFocusOnDecisionVariables.
    • hasLnsExpandIntervalsInConstraintGraph

      public boolean hasLnsExpandIntervalsInConstraintGraph()
      optional bool lns_expand_intervals_in_constraint_graph = 184 [default = true];
      Specified by:
      hasLnsExpandIntervalsInConstraintGraph in interface SatParametersOrBuilder
      Returns:
      Whether the lnsExpandIntervalsInConstraintGraph field is set.
    • getLnsExpandIntervalsInConstraintGraph

      public boolean getLnsExpandIntervalsInConstraintGraph()
      optional bool lns_expand_intervals_in_constraint_graph = 184 [default = true];
      Specified by:
      getLnsExpandIntervalsInConstraintGraph in interface SatParametersOrBuilder
      Returns:
      The lnsExpandIntervalsInConstraintGraph.
    • hasUseRinsLns

      public boolean hasUseRinsLns()
       Turns on relaxation induced neighborhood generator.
       
      optional bool use_rins_lns = 129 [default = true];
      Specified by:
      hasUseRinsLns in interface SatParametersOrBuilder
      Returns:
      Whether the useRinsLns field is set.
    • getUseRinsLns

      public boolean getUseRinsLns()
       Turns on relaxation induced neighborhood generator.
       
      optional bool use_rins_lns = 129 [default = true];
      Specified by:
      getUseRinsLns in interface SatParametersOrBuilder
      Returns:
      The useRinsLns.
    • hasUseFeasibilityPump

      public boolean hasUseFeasibilityPump()
       Adds a feasibility pump subsolver along with lns subsolvers.
       
      optional bool use_feasibility_pump = 164 [default = true];
      Specified by:
      hasUseFeasibilityPump in interface SatParametersOrBuilder
      Returns:
      Whether the useFeasibilityPump field is set.
    • getUseFeasibilityPump

      public boolean getUseFeasibilityPump()
       Adds a feasibility pump subsolver along with lns subsolvers.
       
      optional bool use_feasibility_pump = 164 [default = true];
      Specified by:
      getUseFeasibilityPump in interface SatParametersOrBuilder
      Returns:
      The useFeasibilityPump.
    • hasFpRounding

      public boolean hasFpRounding()
      optional .operations_research.sat.SatParameters.FPRoundingMethod fp_rounding = 165 [default = PROPAGATION_ASSISTED];
      Specified by:
      hasFpRounding in interface SatParametersOrBuilder
      Returns:
      Whether the fpRounding field is set.
    • getFpRounding

      public SatParameters.FPRoundingMethod getFpRounding()
      optional .operations_research.sat.SatParameters.FPRoundingMethod fp_rounding = 165 [default = PROPAGATION_ASSISTED];
      Specified by:
      getFpRounding in interface SatParametersOrBuilder
      Returns:
      The fpRounding.
    • hasUseRelaxationLns

      public boolean hasUseRelaxationLns()
       Turns on a lns worker which solves relaxed version of the original problem
       by removing constraints from the problem in order to get better bounds.
       
      optional bool use_relaxation_lns = 150 [default = false];
      Specified by:
      hasUseRelaxationLns in interface SatParametersOrBuilder
      Returns:
      Whether the useRelaxationLns field is set.
    • getUseRelaxationLns

      public boolean getUseRelaxationLns()
       Turns on a lns worker which solves relaxed version of the original problem
       by removing constraints from the problem in order to get better bounds.
       
      optional bool use_relaxation_lns = 150 [default = false];
      Specified by:
      getUseRelaxationLns in interface SatParametersOrBuilder
      Returns:
      The useRelaxationLns.
    • hasDiversifyLnsParams

      public boolean hasDiversifyLnsParams()
       If true, registers more lns subsolvers with different parameters.
       
      optional bool diversify_lns_params = 137 [default = false];
      Specified by:
      hasDiversifyLnsParams in interface SatParametersOrBuilder
      Returns:
      Whether the diversifyLnsParams field is set.
    • getDiversifyLnsParams

      public boolean getDiversifyLnsParams()
       If true, registers more lns subsolvers with different parameters.
       
      optional bool diversify_lns_params = 137 [default = false];
      Specified by:
      getDiversifyLnsParams in interface SatParametersOrBuilder
      Returns:
      The diversifyLnsParams.
    • hasRandomizeSearch

      public boolean hasRandomizeSearch()
       Randomize fixed search.
       
      optional bool randomize_search = 103 [default = false];
      Specified by:
      hasRandomizeSearch in interface SatParametersOrBuilder
      Returns:
      Whether the randomizeSearch field is set.
    • getRandomizeSearch

      public boolean getRandomizeSearch()
       Randomize fixed search.
       
      optional bool randomize_search = 103 [default = false];
      Specified by:
      getRandomizeSearch in interface SatParametersOrBuilder
      Returns:
      The randomizeSearch.
    • hasSearchRandomizationTolerance

      public boolean hasSearchRandomizationTolerance()
       Search randomization will collect equivalent 'max valued' variables, and
       pick one randomly. For instance, if the variable strategy is CHOOSE_FIRST,
       all unassigned variables are equivalent. If the variable strategy is
       CHOOSE_LOWEST_MIN, and `lm` is the current lowest min of all unassigned
       variables, then the set of max valued variables will be all unassigned
       variables where
          lm <= variable min <= lm + search_randomization_tolerance
       
      optional int64 search_randomization_tolerance = 104 [default = 0];
      Specified by:
      hasSearchRandomizationTolerance in interface SatParametersOrBuilder
      Returns:
      Whether the searchRandomizationTolerance field is set.
    • getSearchRandomizationTolerance

      public long getSearchRandomizationTolerance()
       Search randomization will collect equivalent 'max valued' variables, and
       pick one randomly. For instance, if the variable strategy is CHOOSE_FIRST,
       all unassigned variables are equivalent. If the variable strategy is
       CHOOSE_LOWEST_MIN, and `lm` is the current lowest min of all unassigned
       variables, then the set of max valued variables will be all unassigned
       variables where
          lm <= variable min <= lm + search_randomization_tolerance
       
      optional int64 search_randomization_tolerance = 104 [default = 0];
      Specified by:
      getSearchRandomizationTolerance in interface SatParametersOrBuilder
      Returns:
      The searchRandomizationTolerance.
    • hasUseOptionalVariables

      public boolean hasUseOptionalVariables()
       If true, we automatically detect variables whose constraint are always
       enforced by the same literal and we mark them as optional. This allows
       to propagate them as if they were present in some situation.
       
      optional bool use_optional_variables = 108 [default = true];
      Specified by:
      hasUseOptionalVariables in interface SatParametersOrBuilder
      Returns:
      Whether the useOptionalVariables field is set.
    • getUseOptionalVariables

      public boolean getUseOptionalVariables()
       If true, we automatically detect variables whose constraint are always
       enforced by the same literal and we mark them as optional. This allows
       to propagate them as if they were present in some situation.
       
      optional bool use_optional_variables = 108 [default = true];
      Specified by:
      getUseOptionalVariables in interface SatParametersOrBuilder
      Returns:
      The useOptionalVariables.
    • hasUseExactLpReason

      public boolean hasUseExactLpReason()
       The solver usually exploit the LP relaxation of a model. If this option is
       true, then whatever is infered by the LP will be used like an heuristic to
       compute EXACT propagation on the IP. So with this option, there is no
       numerical imprecision issues.
       
      optional bool use_exact_lp_reason = 109 [default = true];
      Specified by:
      hasUseExactLpReason in interface SatParametersOrBuilder
      Returns:
      Whether the useExactLpReason field is set.
    • getUseExactLpReason

      public boolean getUseExactLpReason()
       The solver usually exploit the LP relaxation of a model. If this option is
       true, then whatever is infered by the LP will be used like an heuristic to
       compute EXACT propagation on the IP. So with this option, there is no
       numerical imprecision issues.
       
      optional bool use_exact_lp_reason = 109 [default = true];
      Specified by:
      getUseExactLpReason in interface SatParametersOrBuilder
      Returns:
      The useExactLpReason.
    • hasUseBranchingInLp

      public boolean hasUseBranchingInLp()
       If true, the solver attemts to generate more info inside lp propagator by
       branching on some variables if certain criteria are met during the search
       tree exploration.
       
      optional bool use_branching_in_lp = 139 [default = false];
      Specified by:
      hasUseBranchingInLp in interface SatParametersOrBuilder
      Returns:
      Whether the useBranchingInLp field is set.
    • getUseBranchingInLp

      public boolean getUseBranchingInLp()
       If true, the solver attemts to generate more info inside lp propagator by
       branching on some variables if certain criteria are met during the search
       tree exploration.
       
      optional bool use_branching_in_lp = 139 [default = false];
      Specified by:
      getUseBranchingInLp in interface SatParametersOrBuilder
      Returns:
      The useBranchingInLp.
    • hasUseCombinedNoOverlap

      public boolean hasUseCombinedNoOverlap()
       This can be beneficial if there is a lot of no-overlap constraints but a
       relatively low number of different intervals in the problem. Like 1000
       intervals, but 1M intervals in the no-overlap constraints covering them.
       
      optional bool use_combined_no_overlap = 133 [default = false];
      Specified by:
      hasUseCombinedNoOverlap in interface SatParametersOrBuilder
      Returns:
      Whether the useCombinedNoOverlap field is set.
    • getUseCombinedNoOverlap

      public boolean getUseCombinedNoOverlap()
       This can be beneficial if there is a lot of no-overlap constraints but a
       relatively low number of different intervals in the problem. Like 1000
       intervals, but 1M intervals in the no-overlap constraints covering them.
       
      optional bool use_combined_no_overlap = 133 [default = false];
      Specified by:
      getUseCombinedNoOverlap in interface SatParametersOrBuilder
      Returns:
      The useCombinedNoOverlap.
    • hasCatchSigintSignal

      public boolean hasCatchSigintSignal()
       Indicates if the CP-SAT layer should catch Control-C (SIGINT) signals
       when calling solve. If set, catching the SIGINT signal will terminate the
       search gracefully, as if a time limit was reached.
       
      optional bool catch_sigint_signal = 135 [default = true];
      Specified by:
      hasCatchSigintSignal in interface SatParametersOrBuilder
      Returns:
      Whether the catchSigintSignal field is set.
    • getCatchSigintSignal

      public boolean getCatchSigintSignal()
       Indicates if the CP-SAT layer should catch Control-C (SIGINT) signals
       when calling solve. If set, catching the SIGINT signal will terminate the
       search gracefully, as if a time limit was reached.
       
      optional bool catch_sigint_signal = 135 [default = true];
      Specified by:
      getCatchSigintSignal in interface SatParametersOrBuilder
      Returns:
      The catchSigintSignal.
    • hasUseImpliedBounds

      public boolean hasUseImpliedBounds()
       Stores and exploits "implied-bounds" in the solver. That is, relations of
       the form literal => (var >= bound). This is currently used to derive
       stronger cuts.
       
      optional bool use_implied_bounds = 144 [default = true];
      Specified by:
      hasUseImpliedBounds in interface SatParametersOrBuilder
      Returns:
      Whether the useImpliedBounds field is set.
    • getUseImpliedBounds

      public boolean getUseImpliedBounds()
       Stores and exploits "implied-bounds" in the solver. That is, relations of
       the form literal => (var >= bound). This is currently used to derive
       stronger cuts.
       
      optional bool use_implied_bounds = 144 [default = true];
      Specified by:
      getUseImpliedBounds in interface SatParametersOrBuilder
      Returns:
      The useImpliedBounds.
    • hasPolishLpSolution

      public boolean hasPolishLpSolution()
       Whether we try to do a few degenerate iteration at the end of an LP solve
       to minimize the fractionality of the integer variable in the basis. This
       helps on some problems, but not so much on others. It also cost of bit of
       time to do such polish step.
       
      optional bool polish_lp_solution = 175 [default = false];
      Specified by:
      hasPolishLpSolution in interface SatParametersOrBuilder
      Returns:
      Whether the polishLpSolution field is set.
    • getPolishLpSolution

      public boolean getPolishLpSolution()
       Whether we try to do a few degenerate iteration at the end of an LP solve
       to minimize the fractionality of the integer variable in the basis. This
       helps on some problems, but not so much on others. It also cost of bit of
       time to do such polish step.
       
      optional bool polish_lp_solution = 175 [default = false];
      Specified by:
      getPolishLpSolution in interface SatParametersOrBuilder
      Returns:
      The polishLpSolution.
    • hasConvertIntervals

      public boolean hasConvertIntervals()
       Temporary flag util the feature is more mature. This convert intervals to
       the newer proto format that support affine start/var/end instead of just
       variables. It changes a bit the search and is not always better currently.
       
      optional bool convert_intervals = 177 [default = false];
      Specified by:
      hasConvertIntervals in interface SatParametersOrBuilder
      Returns:
      Whether the convertIntervals field is set.
    • getConvertIntervals

      public boolean getConvertIntervals()
       Temporary flag util the feature is more mature. This convert intervals to
       the newer proto format that support affine start/var/end instead of just
       variables. It changes a bit the search and is not always better currently.
       
      optional bool convert_intervals = 177 [default = false];
      Specified by:
      getConvertIntervals in interface SatParametersOrBuilder
      Returns:
      The convertIntervals.
    • hasSymmetryLevel

      public boolean hasSymmetryLevel()
       Whether we try to automatically detect the symmetries in a model and
       exploit them. Currently, at level 1 we detect them in presolve and try
       to fix Booleans. At level 2, we also do some form of dynamic symmetry
       breaking during search.
       
      optional int32 symmetry_level = 183 [default = 2];
      Specified by:
      hasSymmetryLevel in interface SatParametersOrBuilder
      Returns:
      Whether the symmetryLevel field is set.
    • getSymmetryLevel

      public int getSymmetryLevel()
       Whether we try to automatically detect the symmetries in a model and
       exploit them. Currently, at level 1 we detect them in presolve and try
       to fix Booleans. At level 2, we also do some form of dynamic symmetry
       breaking during search.
       
      optional int32 symmetry_level = 183 [default = 2];
      Specified by:
      getSymmetryLevel in interface SatParametersOrBuilder
      Returns:
      The symmetryLevel.
    • hasMipMaxBound

      public boolean hasMipMaxBound()
       We need to bound the maximum magnitude of the variables for CP-SAT, and
       that is the bound we use. If the MIP model expect larger variable value in
       the solution, then the converted model will likely not be relevant.
       
      optional double mip_max_bound = 124 [default = 10000000];
      Specified by:
      hasMipMaxBound in interface SatParametersOrBuilder
      Returns:
      Whether the mipMaxBound field is set.
    • getMipMaxBound

      public double getMipMaxBound()
       We need to bound the maximum magnitude of the variables for CP-SAT, and
       that is the bound we use. If the MIP model expect larger variable value in
       the solution, then the converted model will likely not be relevant.
       
      optional double mip_max_bound = 124 [default = 10000000];
      Specified by:
      getMipMaxBound in interface SatParametersOrBuilder
      Returns:
      The mipMaxBound.
    • hasMipVarScaling

      public boolean hasMipVarScaling()
       All continuous variable of the problem will be multiplied by this factor.
       By default, we don't do any variable scaling and rely on the MIP model to
       specify continuous variable domain with the wanted precision.
       
      optional double mip_var_scaling = 125 [default = 1];
      Specified by:
      hasMipVarScaling in interface SatParametersOrBuilder
      Returns:
      Whether the mipVarScaling field is set.
    • getMipVarScaling

      public double getMipVarScaling()
       All continuous variable of the problem will be multiplied by this factor.
       By default, we don't do any variable scaling and rely on the MIP model to
       specify continuous variable domain with the wanted precision.
       
      optional double mip_var_scaling = 125 [default = 1];
      Specified by:
      getMipVarScaling in interface SatParametersOrBuilder
      Returns:
      The mipVarScaling.
    • hasMipAutomaticallyScaleVariables

      public boolean hasMipAutomaticallyScaleVariables()
       If true, some continuous variable might be automatially scaled. For now,
       this is only the case where we detect that a variable is actually an
       integer multiple of a constant. For instance, variables of the form k * 0.5
       are quite frequent, and if we detect this, we will scale such variable
       domain by 2 to make it implied integer.
       
      optional bool mip_automatically_scale_variables = 166 [default = true];
      Specified by:
      hasMipAutomaticallyScaleVariables in interface SatParametersOrBuilder
      Returns:
      Whether the mipAutomaticallyScaleVariables field is set.
    • getMipAutomaticallyScaleVariables

      public boolean getMipAutomaticallyScaleVariables()
       If true, some continuous variable might be automatially scaled. For now,
       this is only the case where we detect that a variable is actually an
       integer multiple of a constant. For instance, variables of the form k * 0.5
       are quite frequent, and if we detect this, we will scale such variable
       domain by 2 to make it implied integer.
       
      optional bool mip_automatically_scale_variables = 166 [default = true];
      Specified by:
      getMipAutomaticallyScaleVariables in interface SatParametersOrBuilder
      Returns:
      The mipAutomaticallyScaleVariables.
    • hasMipWantedPrecision

      public boolean hasMipWantedPrecision()
       When scaling constraint with double coefficients to integer coefficients,
       we will multiply by a power of 2 and round the coefficients. We will choose
       the lowest power such that we have no potential overflow and the worst case
       constraint activity error do not exceed this threshold relative to the
       constraint bounds.
       We also use this to decide by how much we relax the constraint bounds so
       that we can have a feasible integer solution of constraints involving
       continuous variable. This is required for instance when you have an == rhs
       constraint as in many situation you cannot have a perfect equality with
       integer variables and coefficients.
       
      optional double mip_wanted_precision = 126 [default = 1e-06];
      Specified by:
      hasMipWantedPrecision in interface SatParametersOrBuilder
      Returns:
      Whether the mipWantedPrecision field is set.
    • getMipWantedPrecision

      public double getMipWantedPrecision()
       When scaling constraint with double coefficients to integer coefficients,
       we will multiply by a power of 2 and round the coefficients. We will choose
       the lowest power such that we have no potential overflow and the worst case
       constraint activity error do not exceed this threshold relative to the
       constraint bounds.
       We also use this to decide by how much we relax the constraint bounds so
       that we can have a feasible integer solution of constraints involving
       continuous variable. This is required for instance when you have an == rhs
       constraint as in many situation you cannot have a perfect equality with
       integer variables and coefficients.
       
      optional double mip_wanted_precision = 126 [default = 1e-06];
      Specified by:
      getMipWantedPrecision in interface SatParametersOrBuilder
      Returns:
      The mipWantedPrecision.
    • hasMipMaxActivityExponent

      public boolean hasMipMaxActivityExponent()
       To avoid integer overflow, we always force the maximum possible constraint
       activity (and objective value) according to the initial variable domain to
       be smaller than 2 to this given power. Because of this, we cannot always
       reach the "mip_wanted_precision" parameter above.
       This can go as high as 62, but some internal algo currently abort early if
       they might run into integer overflow, so it is better to keep it a bit
       lower than this.
       
      optional int32 mip_max_activity_exponent = 127 [default = 53];
      Specified by:
      hasMipMaxActivityExponent in interface SatParametersOrBuilder
      Returns:
      Whether the mipMaxActivityExponent field is set.
    • getMipMaxActivityExponent

      public int getMipMaxActivityExponent()
       To avoid integer overflow, we always force the maximum possible constraint
       activity (and objective value) according to the initial variable domain to
       be smaller than 2 to this given power. Because of this, we cannot always
       reach the "mip_wanted_precision" parameter above.
       This can go as high as 62, but some internal algo currently abort early if
       they might run into integer overflow, so it is better to keep it a bit
       lower than this.
       
      optional int32 mip_max_activity_exponent = 127 [default = 53];
      Specified by:
      getMipMaxActivityExponent in interface SatParametersOrBuilder
      Returns:
      The mipMaxActivityExponent.
    • hasMipCheckPrecision

      public boolean hasMipCheckPrecision()
       As explained in mip_precision and mip_max_activity_exponent, we cannot
       always reach the wanted precision during scaling. We use this threshold to
       enphasize in the logs when the precision seems bad.
       
      optional double mip_check_precision = 128 [default = 0.0001];
      Specified by:
      hasMipCheckPrecision in interface SatParametersOrBuilder
      Returns:
      Whether the mipCheckPrecision field is set.
    • getMipCheckPrecision

      public double getMipCheckPrecision()
       As explained in mip_precision and mip_max_activity_exponent, we cannot
       always reach the wanted precision during scaling. We use this threshold to
       enphasize in the logs when the precision seems bad.
       
      optional double mip_check_precision = 128 [default = 0.0001];
      Specified by:
      getMipCheckPrecision in interface SatParametersOrBuilder
      Returns:
      The mipCheckPrecision.
    • isInitialized

      public final boolean isInitialized()
      Specified by:
      isInitialized in interface com.google.protobuf.MessageLiteOrBuilder
      Overrides:
      isInitialized in class com.google.protobuf.GeneratedMessageV3
    • writeTo

      public void writeTo​(com.google.protobuf.CodedOutputStream output) throws java.io.IOException
      Specified by:
      writeTo in interface com.google.protobuf.MessageLite
      Overrides:
      writeTo in class com.google.protobuf.GeneratedMessageV3
      Throws:
      java.io.IOException
    • getSerializedSize

      public int getSerializedSize()
      Specified by:
      getSerializedSize in interface com.google.protobuf.MessageLite
      Overrides:
      getSerializedSize in class com.google.protobuf.GeneratedMessageV3
    • equals

      public boolean equals​(java.lang.Object obj)
      Specified by:
      equals in interface com.google.protobuf.Message
      Overrides:
      equals in class com.google.protobuf.AbstractMessage
    • hashCode

      public int hashCode()
      Specified by:
      hashCode in interface com.google.protobuf.Message
      Overrides:
      hashCode in class com.google.protobuf.AbstractMessage
    • parseFrom

      public static SatParameters parseFrom​(java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException
      Throws:
      com.google.protobuf.InvalidProtocolBufferException
    • parseFrom

      public static SatParameters parseFrom​(java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry) throws com.google.protobuf.InvalidProtocolBufferException
      Throws:
      com.google.protobuf.InvalidProtocolBufferException
    • parseFrom

      public static SatParameters parseFrom​(com.google.protobuf.ByteString data) throws com.google.protobuf.InvalidProtocolBufferException
      Throws:
      com.google.protobuf.InvalidProtocolBufferException
    • parseFrom

      public static SatParameters parseFrom​(com.google.protobuf.ByteString data, com.google.protobuf.ExtensionRegistryLite extensionRegistry) throws com.google.protobuf.InvalidProtocolBufferException
      Throws:
      com.google.protobuf.InvalidProtocolBufferException
    • parseFrom

      public static SatParameters parseFrom​(byte[] data) throws com.google.protobuf.InvalidProtocolBufferException
      Throws:
      com.google.protobuf.InvalidProtocolBufferException
    • parseFrom

      public static SatParameters parseFrom​(byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry) throws com.google.protobuf.InvalidProtocolBufferException
      Throws:
      com.google.protobuf.InvalidProtocolBufferException
    • parseFrom

      public static SatParameters parseFrom​(java.io.InputStream input) throws java.io.IOException
      Throws:
      java.io.IOException
    • parseFrom

      public static SatParameters parseFrom​(java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry) throws java.io.IOException
      Throws:
      java.io.IOException
    • parseDelimitedFrom

      public static SatParameters parseDelimitedFrom​(java.io.InputStream input) throws java.io.IOException
      Throws:
      java.io.IOException
    • parseDelimitedFrom

      public static SatParameters parseDelimitedFrom​(java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry) throws java.io.IOException
      Throws:
      java.io.IOException
    • parseFrom

      public static SatParameters parseFrom​(com.google.protobuf.CodedInputStream input) throws java.io.IOException
      Throws:
      java.io.IOException
    • parseFrom

      public static SatParameters parseFrom​(com.google.protobuf.CodedInputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry) throws java.io.IOException
      Throws:
      java.io.IOException
    • newBuilderForType

      public SatParameters.Builder newBuilderForType()
      Specified by:
      newBuilderForType in interface com.google.protobuf.Message
      Specified by:
      newBuilderForType in interface com.google.protobuf.MessageLite
    • newBuilder

      public static SatParameters.Builder newBuilder()
    • newBuilder

      public static SatParameters.Builder newBuilder​(SatParameters prototype)
    • toBuilder

      public SatParameters.Builder toBuilder()
      Specified by:
      toBuilder in interface com.google.protobuf.Message
      Specified by:
      toBuilder in interface com.google.protobuf.MessageLite
    • newBuilderForType

      protected SatParameters.Builder newBuilderForType​(com.google.protobuf.GeneratedMessageV3.BuilderParent parent)
      Specified by:
      newBuilderForType in class com.google.protobuf.GeneratedMessageV3
    • getDefaultInstance

      public static SatParameters getDefaultInstance()
    • parser

      public static com.google.protobuf.Parser<SatParameters> parser()
    • getParserForType

      public com.google.protobuf.Parser<SatParameters> getParserForType()
      Specified by:
      getParserForType in interface com.google.protobuf.Message
      Specified by:
      getParserForType in interface com.google.protobuf.MessageLite
      Overrides:
      getParserForType in class com.google.protobuf.GeneratedMessageV3
    • getDefaultInstanceForType

      public SatParameters getDefaultInstanceForType()
      Specified by:
      getDefaultInstanceForType in interface com.google.protobuf.MessageLiteOrBuilder
      Specified by:
      getDefaultInstanceForType in interface com.google.protobuf.MessageOrBuilder