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Narrow conflicting constraint after backjumping

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This commit is contained in:
Jakob Rath 2022-10-07 18:01:54 +02:00
parent 54ed6d4413
commit 4406652c7b
3 changed files with 36 additions and 0 deletions
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12
src/math/polysat/conflict.cpp
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@ -148,6 +148,7 @@ namespace polysat {
SASSERT(m_vars.empty());
SASSERT(m_bail_vars.empty());
SASSERT(m_lemmas.empty());
SASSERT(m_narrow_queue.empty());
}
return is_empty;
}
@ -159,6 +160,7 @@ namespace polysat {
m_relevant_vars.reset();
m_var_occurrences.reset();
m_lemmas.reset();
m_narrow_queue.reset();
m_kind = conflict_kind_t::ok;
m_level = UINT_MAX;
SASSERT(empty());
@ -211,6 +213,7 @@ namespace polysat {
void conflict::init(signed_constraint c) {
SASSERT(empty());
m_level = s.m_level;
m_narrow_queue.push_back(c.blit()); // if the conflict is only due to a missed propagation of c
set_impl(c);
logger().begin_conflict();
}
@ -535,6 +538,15 @@ namespace polysat {
return std::move(m_lemmas);
}
sat::literal_vector conflict::take_narrow_queue() {
#ifndef NDEBUG
on_scope_exit check_empty([this]() {
SASSERT(m_narrow_queue.empty());
});
#endif
return std::move(m_narrow_queue);
}
#if 0
void conflict::learn_side_lemmas() {
auto needs_side_lemma = [this](sat::literal lit) -> bool {