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conflict2

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This commit is contained in:
Jakob Rath 2022-09-19 16:01:45 +02:00
parent 68e313ed24
commit a416e16566
9 changed files with 216 additions and 31 deletions
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3
src/math/polysat/solver.cpp
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@ -645,7 +645,7 @@ namespace polysat {
LOG_H2("Working on " << search_item_pp(m_search, item));
LOG(m_justification[v]);
LOG("Conflict: " << m_conflict);
inc_activity(v);
// inc_activity(v); // done in resolve_value
justification& j = m_justification[v];
if (j.level() > base_level() && !m_conflict.resolve_value(v) && j.is_decision()) {
m_conflict.end_conflict();
@ -887,6 +887,7 @@ namespace polysat {
}
void solver::assign_eval(sat::literal lit) {
SASSERT(lit2cnstr(lit).is_currently_true(*this));
unsigned level = 0;
// NOTE: constraint may be evaluated even if some variables are still unassigned (e.g., 0*x doesn't depend on x).
for (auto v : lit2cnstr(lit)->vars())