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bug fixes, prepare for retaining blocked clauses

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2017-10-19 22:19:05 -07:00
parent 636f740b1a
commit 76eed064eb
16 changed files with 333 additions and 234 deletions
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2
src/sat/sat_simplifier_params.pyg
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@ -2,6 +2,7 @@ def_module_params(module_name='sat',
class_name='sat_simplifier_params',
export=True,
params=(('elim_blocked_clauses', BOOL, False, 'eliminate blocked clauses'),
('elim_covered_clauses', BOOL, False, 'eliminate covered clauses'),
('elim_blocked_clauses_at', UINT, 2, 'eliminate blocked clauses only once at the given simplification round'),
('blocked_clause_limit', UINT, 100000000, 'maximum number of literals visited during blocked clause elimination'),
('resolution', BOOL, True, 'eliminate boolean variables using resolution'),
@ -16,5 +17,6 @@ def_module_params(module_name='sat',
('resolution.cls_cutoff1', UINT, 100000000, 'limit1 - total number of problems clauses for the second cutoff of Boolean variable elimination'),
('resolution.cls_cutoff2', UINT, 700000000, 'limit2 - total number of problems clauses for the second cutoff of Boolean variable elimination'),
('elim_vars', BOOL, True, 'enable variable elimination during simplification'),
('elim_vars_bdd', BOOL, True, 'enable variable elimination using BDD recompilation during simplification'),
('subsumption', BOOL, True, 'eliminate subsumed clauses'),
('subsumption.limit', UINT, 100000000, 'approx. maximum number of literals visited during subsumption (and subsumption resolution)')))