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add option to increase thresholds based on simulated equality

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2020-01-16 22:43:18 -08:00
parent 93d1091ad9
commit 22f1c6448a
6 changed files with 166 additions and 35 deletions
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7
src/sat/sat_aig_simplifier.h
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@ -28,7 +28,7 @@ namespace sat {
public:
struct stats {
unsigned m_num_eqs, m_num_units, m_num_cuts, m_num_xors, m_num_ands, m_num_ites;
unsigned m_num_calls, m_num_dont_care_reductions;
unsigned m_num_calls, m_num_dont_care_reductions, m_num_learned_implies;
stats() { reset(); }
void reset() { memset(this, 0, sizeof(*this)); }
};
@ -39,13 +39,15 @@ namespace sat {
bool m_learned2aig; // add learned clauses to AIGs used by cut-set enumeration
bool m_validate_cuts; // enable direct validation of generated cuts
bool m_validate_lemmas; // enable direct validation of learned lemmas
bool m_simulate_eqs; // use symbolic simulation to control size of cutsets.
config():
m_enable_units(true),
m_enable_dont_cares(true),
m_learn_implies(false),
m_learned2aig(true),
m_validate_cuts(false),
m_validate_lemmas(false) {}
m_validate_lemmas(false),
m_simulate_eqs(true) {}
};
private:
struct report;
@ -120,6 +122,7 @@ namespace sat {
void clauses2aig();
void aig2clauses();
void simulate_eqs();
void cuts2equiv(vector<cut_set> const& cuts);
void cuts2implies(vector<cut_set> const& cuts);
void uf2equiv(union_find<> const& uf);