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Polysat updates (#5524)

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* Move boolean resolution into conflict_core

* Move store() into dedup functionality

* comments

* Call gc()

* Add inference_engine sketch
This commit is contained in:
Jakob Rath 2021-08-31 17:16:45 +02:00 • committed by GitHub
parent d1118cb178
commit dde8fb0c37
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8 changed files with 172 additions and 92 deletions
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src/math/polysat/solver.cpp
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@ -66,6 +66,9 @@ namespace polysat {
if (!m_conflict.empty()) LOG("Conflict: " << m_conflict);
IF_LOGGING(m_viable.log());
if (!is_conflict() && m_constraints.should_gc())
m_constraints.gc();
if (pending_disjunctive_lemma()) { LOG_H2("UNDEF (handle lemma externally)"); return l_undef; }
else if (is_conflict() && at_base_level()) { LOG_H2("UNSAT"); return l_false; }
else if (is_conflict()) resolve_conflict();
@ -140,7 +143,7 @@ namespace polysat {
SASSERT(sc);
SASSERT(activate || dep != null_dependency); // if we don't activate the constraint, we need the dependency to access it again later.
signed_constraint c = sc.get_signed();
m_constraints.store(sc.detach());
sc.detach();
clause* unit = m_constraints.store(clause::from_unit(c, mk_dep_ref(dep)));
c->set_unit_clause(unit);
if (dep != null_dependency)