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Try to do some processing already during assignments

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CEisenhofer 2026-06-27 12:53:57 +02:00
parent fc2124890e
commit e983bc76d4
7 changed files with 256 additions and 0 deletions
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12
src/smt/theory_nseq.h
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@ -77,8 +77,19 @@ namespace smt {
unsigned m_last_constraint_added = 0;
bool m_can_hot_restart = false;
// Eager structural pre-check (see eager_structural_check): m_eager_dirty is
// a monotone counter bumped whenever a Nielsen-relevant constraint (word eq,
// diseq, or membership) is enqueued; m_eager_seen records the value at the
// last eager run, so the cheap closure is re-run only when the set changed.
// m_eager_processed = how many m_prop_queue items are already folded into the
// incremental eager chain (`m_nielsen`'s deterministic leaf).
unsigned m_eager_dirty = 0;
unsigned m_eager_seen = 0;
unsigned m_eager_processed = 0;
// statistics
unsigned m_num_conflicts = 0;
unsigned m_num_eager_conflicts = 0; // conflicts found by the eager structural closure
unsigned m_num_final_checks = 0;
unsigned m_num_sat_revalidations = 0; // times the cached SAT path was reused instead of rebuilding
unsigned m_num_length_axioms = 0;
@ -135,6 +146,7 @@ namespace smt {
// private helpers
void populate_nielsen_graph();
void eager_structural_check();
void explain_nielsen_conflict();
void set_conflict(enode_pair_vector const& eqs, literal_vector const& lits) const;
void set_conflict(literal_vector const& lits) {