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add lrb/chb and experiment with them

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2017-05-28 10:48:31 -07:00
commit e0a86ccc1a
28 changed files with 459 additions and 281 deletions
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15
src/sat/sat_solver.h
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@ -110,8 +110,17 @@ namespace sat {
svector<char> m_eliminated;
svector<char> m_external;
svector<unsigned> m_level;
// branch variable selection:
svector<unsigned> m_activity;
unsigned m_activity_inc;
svector<uint64> m_last_conflict;
svector<uint64> m_last_propagation;
svector<uint64> m_participated;
svector<uint64> m_canceled;
svector<uint64> m_reasoned;
int m_action;
double m_step_size;
// phase
svector<char> m_phase;
svector<char> m_prev_phase;
svector<char> m_assigned_since_gc;
@ -555,6 +564,12 @@ namespace sat {
private:
void rescale_activity();
void update_chb_activity(bool is_sat, unsigned qhead);
void update_lrb_reasoned();
void update_lrb_reasoned(literal lit);
// -----------------------
//
// Iterators