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This commit is contained in:
Jakob Rath 2023-01-09 17:19:58 +01:00
parent 181995a4fb
commit b6ea9e31e5
3 changed files with 15 additions and 16 deletions
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18
src/math/polysat/solver.cpp
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@ -977,18 +977,16 @@ namespace polysat {
lemmas.push_back(m_conflict.build_lemma());
appraise_lemma(lemmas.back());
}
SASSERT(best_score < lemma_score::max());
if (!best_lemma) {
verbose_stream() << "conflict: " << m_conflict << "\n";
verbose_stream() << "no lemma\n";
for (clause* cl: lemmas) {
for (sat::literal lit : *cl) {
if (m_bvars.is_true(lit)) // may happen if we only use the clause to justify a new constraint; it is not a real lemma
verbose_stream() << "is true " << lit << "\n";
if (!m_bvars.is_assigned(lit))
verbose_stream() << lit << " is not assigned \n";
}
verbose_stream() << *cl << "\n";
for (sat::literal lit : *cl)
verbose_stream() << " " << lit_pp(*this, lit) << "\n";
}
}
SASSERT(best_score < lemma_score::max());
VERIFY(best_lemma);
unsigned const jump_level = std::max(best_score.jump_level(), base_level());
@ -1334,9 +1332,9 @@ namespace polysat {
}
else {
sat::bool_var v = item.lit().var();
out << "\t" << item.lit() << " @" << m_bvars.level(v);
out << "\t" << lit_pp(*this, item.lit());
if (m_bvars.reason(v))
out << " " << *m_bvars.reason(v);
out << " reason " << *m_bvars.reason(v);
out << "\n";
}
}
@ -1365,7 +1363,7 @@ namespace polysat {
std::ostream& lit_pp::display(std::ostream& out) const {
auto c = s.lit2cnstr(lit);
out << lpad(4, lit) << ": " << rpad(30, c);
out << lpad(5, lit) << ": " << rpad(30, c);
if (!c)
return out;
out << " [ b:" << rpad(7, s.m_bvars.value(lit));