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add option to "rotate" cores during core finding

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enable to find multiple cores in a round and at the same time facilitate rotation around satisfiable subsets to explore neighborhoods for improved assignments.
This commit is contained in:
Nikolaj Bjorner 2022-05-01 20:58:11 +02:00
parent 5a9b0dd747
commit b5c7f000de
6 changed files with 510 additions and 25 deletions
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5
src/opt/opt_params.pyg
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@ -10,8 +10,9 @@ def_module_params('opt',
('timeout', UINT, UINT_MAX, 'timeout (in milliseconds) (UINT_MAX and 0 mean no timeout)'),
('rlimit', UINT, 0, 'resource limit (0 means no limit)'),
('enable_sls', BOOL, False, 'enable SLS tuning during weighted maxsat'),
('enable_lns', BOOL, False, 'enable LNS during weighted maxsat'),
('enable_lns', BOOL, False, 'enable LNS during weighted maxsat'),
('lns_conflicts', UINT, 1000, 'initial conflict count for LNS search'),
('enable_core_rotate', BOOL, False, 'enable core rotation to both sample cores and correction sets'),
('enable_sat', BOOL, True, 'enable the new SAT core for propositional constraints'),
('elim_01', BOOL, True, 'eliminate 01 variables'),
('pp.neat', BOOL, True, 'use neat (as opposed to less readable, but faster) pretty printer when displaying context'),
@ -20,7 +21,7 @@ def_module_params('opt',
('maxlex.enable', BOOL, True, 'enable maxlex heuristic for lexicographic MaxSAT problems'),
('maxres.hill_climb', BOOL, True, 'give preference for large weight cores'),
('maxres.add_upper_bound_block', BOOL, False, 'restict upper bound with constraint'),
('maxres.max_num_cores', UINT, UINT_MAX, 'maximal number of cores per round'),
('maxres.max_num_cores', UINT, 200, 'maximal number of cores per round'),
('maxres.max_core_size', UINT, 3, 'break batch of generated cores if size reaches this number'),
('maxres.maximize_assignment', BOOL, False, 'find an MSS/MCS to improve current assignment'),
('maxres.max_correction_set_size', UINT, 3, 'allow generating correction set constraints up to maximal size'),