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don't saturate immediately after forbidden intervals

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This commit is contained in:
Jakob Rath 2022-04-13 12:45:14 +02:00
parent 3533bf486f
commit fc2633c964
1 changed files with 1 additions and 10 deletions
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11
src/math/polysat/solver.cpp
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@ -572,17 +572,8 @@ namespace polysat {
pvar v = m_conflict.conflict_var();
// This case corresponds to a propagation of conflict_var, except it's not explicitly on the stack.
// TODO: use unsat core from m_viable_fallback if the conflict is from there
// TODO: we could try simpler backtracking loop if we get a lemma from forbidden intervals
VERIFY(m_viable.resolve(v, m_conflict));
// TBD: saturate resulting conflict to get better lemmas.
LOG("try-eliminate v" << v);
if (m_conflict.try_explain(v))
;
else if (m_conflict.try_eliminate(v))
;
else
m_conflict.try_saturate(v);
LOG("end-try-eliminate v");
}
search_iterator search_it(m_search);