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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2021-04-14 04:53:13 -07:00
parent 8c9aae5640
commit de66c12b93
1 changed files with 3 additions and 4 deletions
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5
src/math/polysat/solver.cpp
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@ -445,10 +445,7 @@ namespace polysat {
} }
void solver::backtrack(unsigned i, scoped_ptr<constraint>& lemma) { void solver::backtrack(unsigned i, scoped_ptr<constraint>& lemma) {
if (lemma) {
m_conflict.push_back(lemma.get());
add_lemma(lemma.detach()); add_lemma(lemma.detach());
}
do { do {
auto v = m_search[i].first; auto v = m_search[i].first;
if (!is_marked(v)) if (!is_marked(v))
@ -580,6 +577,8 @@ namespace polysat {
} }
void solver::add_lemma(constraint* c) { void solver::add_lemma(constraint* c) {
if (!c)
return;
add_watch(*c); add_watch(*c);
m_redundant.push_back(c); m_redundant.push_back(c);
for (unsigned i = m_redundant.size() - 1; i-- > 0; ) { for (unsigned i = m_redundant.size() - 1; i-- > 0; ) {