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https://github.com/Z3Prover/z3
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38 lines
3.3 KiB
Text
38 lines
3.3 KiB
Text
def_module_params('opt',
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description='optimization parameters',
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export=True,
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params=(('optsmt_engine', SYMBOL, 'basic', "select optimization engine: 'basic', 'symba'"),
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('maxsat_engine', SYMBOL, 'maxres', "select engine for maxsat: 'core_maxsat', 'wmax', 'maxres', 'pd-maxres', 'maxres-bin', 'rc2'"),
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('priority', SYMBOL, 'lex', "select how to priortize objectives: 'lex' (lexicographic), 'pareto', 'box'"),
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('dump_benchmarks', BOOL, False, 'dump benchmarks for profiling'),
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('dump_models', BOOL, False, 'display intermediary models to stdout'),
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('solution_prefix', SYMBOL, '', "path prefix to dump intermediary, but non-optimal, solutions"),
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('timeout', UINT, UINT_MAX, 'timeout (in milliseconds) (UINT_MAX and 0 mean no timeout)'),
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('rlimit', UINT, 0, 'resource limit (0 means no limit)'),
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('enable_sls', BOOL, False, 'enable SLS tuning during weighted maxsat'),
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('enable_lns', BOOL, False, 'enable LNS during weighted maxsat'),
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('lns_conflicts', UINT, 1000, 'initial conflict count for LNS search'),
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('enable_core_rotate', BOOL, False, 'enable core rotation to both sample cores and correction sets'),
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('enable_sat', BOOL, True, 'enable the new SAT core for propositional constraints'),
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('elim_01', BOOL, True, 'eliminate 01 variables'),
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('incremental', BOOL, False, 'set incremental mode. It disables pre-processing and enables adding constraints in model event handler'),
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('pp.neat', BOOL, True, 'use neat (as opposed to less readable, but faster) pretty printer when displaying context'),
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('pb.compile_equality', BOOL, False, 'compile arithmetical equalities into pseudo-Boolean equality (instead of two inequalites)'),
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('pp.wcnf', BOOL, False, 'print maxsat benchmark into wcnf format'),
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('maxlex.enable', BOOL, True, 'enable maxlex heuristic for lexicographic MaxSAT problems'),
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('rc2.totalizer', BOOL, True, 'use totalizer for rc2 encoding'),
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('maxres.hill_climb', BOOL, True, 'give preference for large weight cores'),
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('maxres.add_upper_bound_block', BOOL, False, 'restict upper bound with constraint'),
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('maxres.max_num_cores', UINT, 200, 'maximal number of cores per round'),
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('maxres.max_core_size', UINT, 3, 'break batch of generated cores if size reaches this number'),
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('maxres.maximize_assignment', BOOL, False, 'find an MSS/MCS to improve current assignment'),
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('maxres.max_correction_set_size', UINT, 3, 'allow generating correction set constraints up to maximal size'),
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('maxres.wmax', BOOL, False, 'use weighted theory solver to constrain upper bounds'),
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('maxres.pivot_on_correction_set', BOOL, True, 'reduce soft constraints if the current correction set is smaller than current core')
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))
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