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add anf and aig simplifier modules, cut-set enumeration, aig_finder, hoist out xor_finder from ba_solver

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
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Nikolaj Bjorner 2020-01-04 13:28:15 -08:00
parent 12e727e49a
commit d27a949ae9
15 changed files with 545 additions and 142 deletions
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1
src/sat/sat_params.pyg
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@ -71,6 +71,7 @@ def_module_params('sat',
('unit_walk_threads', UINT, 0, 'number of unit-walk search threads to find satisfiable solution'),
('binspr', BOOL, False, 'enable SPR inferences of binary propagation redundant clauses. This inprocessing step eliminates models'),
('anf', BOOL, False, 'enable ANF based simplification in-processing'),
('aig', BOOL, False, 'enable AIG based simplification in-processing'),
('lookahead.cube.cutoff', SYMBOL, 'depth', 'cutoff type used to create lookahead cubes: depth, freevars, psat, adaptive_freevars, adaptive_psat'),
# - depth: the maximal cutoff is fixed to the value of lookahead.cube.depth.
# So if the value is 10, at most 1024 cubes will be generated of length 10.