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add cut redundancies

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2020-02-27 21:11:07 -08:00
parent ff3baffadc
commit 05158b3914
4 changed files with 11 additions and 6 deletions

1
src/sat/sat_config.cpp
View file

@ -111,6 +111,7 @@ namespace sat {
m_cut_xor = p.cut_xor();
m_cut_npn3 = p.cut_npn3();
m_cut_dont_cares = p.cut_dont_cares();
m_cut_redundancies = p.cut_redundancies();
m_cut_force = p.cut_force();
m_lookahead_simplify = p.lookahead_simplify();
m_lookahead_double = p.lookahead_double();

1
src/sat/sat_config.h
View file

@ -128,6 +128,7 @@ namespace sat {
bool m_cut_xor;
bool m_cut_npn3;
bool m_cut_dont_cares;
bool m_cut_redundancies;
bool m_cut_force;
bool m_anf_simplify;
unsigned m_anf_delay;

14
src/sat/sat_cut_simplifier.cpp
View file

@ -599,12 +599,14 @@ namespace sat {
}
void cut_simplifier::add_dont_cares(vector<cut_set> const& cuts) {
if (!s.m_config.m_cut_dont_cares)
return;
cuts2bins(cuts);
bins2dont_cares();
dont_cares2cuts(cuts);
// m_aig_cuts.simplify();
if (s.m_config.m_cut_dont_cares) {
cuts2bins(cuts);
bins2dont_cares();
dont_cares2cuts(cuts);
}
if (s.m_config.m_cut_redundancies) {
m_aig_cuts.simplify();
}
}
/**

1
src/sat/sat_params.pyg
View file

@ -81,6 +81,7 @@ def_module_params('sat',
('cut.xor', BOOL, False, 'extract xors from clauses for cut simplification'),
('cut.npn3', BOOL, False, 'extract 3 input functions from clauses for cut simplification'),
('cut.dont_cares', BOOL, True, 'integrate dont cares with cuts'),
('cut.redundancies', BOOL, True, 'integrate redundancy checking of cuts'),
('cut.force', BOOL, False, 'force redoing cut-enumeration until a fixed-point'),
('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.