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adding stronger filter than connected

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2020-01-14 10:41:51 -08:00
parent 509cad9c9a
commit 82cacdf569
1 changed files with 3 additions and 0 deletions
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3
src/sat/sat_aig_simplifier.cpp
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@ -395,6 +395,9 @@ namespace sat {
return;
if (big.connected(u, v))
return;
for (auto const& w : s.get_wlist(u))
if (w.is_binary_clause() && v == w.get_literal())
return;
certify_implies(u, v, c);
s.mk_clause(~u, v, true);
// m_bins owns reference to ~u or v created by certify_implies