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add failed literal backbone variant

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2026-04-22 17:30:10 -07:00
parent c6b595d981
commit 725772dfec
3 changed files with 102 additions and 23 deletions
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5
src/smt/smt_parallel.h
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@ -304,11 +304,16 @@ namespace smt {
ast_translation m_g2l, m_l2g;
unsigned m_bb_chunk_size = 20;
unsigned m_bb_conflicts_per_chunk = 1000;
bool m_use_failed_literal_test;
stats m_stats;
bb_mode m_mode;
unsigned m_num_global_bb_threads = 1; // used to toggle behavior when testing bb candidates
unsigned m_shared_clause_limit = 0; // remembers the index into shared_clause_trail marking the boundary between "old" and "new" clauses to share
bool check_backbone(expr* bb_candidate);
void run_batch_mode();
void run_failed_literal_mode();
lbool check_sat(expr_ref_vector const &asms);
lbool probe_literal(bool_var v, uint_set& units, expr *e);
public:
backbones_worker(unsigned id, parallel &p, expr_ref_vector const &_asms);
void cancel();