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fix gc to not remove ternary clauses that are on assignment trail. This addresses issue with drat proofs that don't pass drat-trim due to deletion during gc, but use in conflicts

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2019-02-22 11:14:20 +01:00
parent 598fc810b5
commit 4c799c144a
11 changed files with 201 additions and 71 deletions
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3
src/sat/sat_probing.cpp
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@ -52,6 +52,9 @@ namespace sat {
unsigned tr_sz = s.m_trail.size();
for (unsigned i = old_tr_sz; i < tr_sz; i++) {
entry.m_lits.push_back(s.m_trail[i]);
if (s.m_config.m_drat) {
s.m_drat.add(~l, s.m_trail[i], true);
}
}
}