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change lookahead equivalence filter

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2017-11-21 13:32:40 -08:00
parent c6cb739b44
commit ef30868ad7
2 changed files with 2 additions and 2 deletions
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2
src/sat/sat_lookahead.cpp
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@ -678,7 +678,7 @@ namespace sat {
for (literal u : succ) { for (literal u : succ) {
SASSERT(u != l); SASSERT(u != l);
// l => u // l => u
if (u.index() > l.index() && is_stamped(u)) { if (u.index() > (~l).index() && is_stamped(u)) {
add_arc(~l, ~u); add_arc(~l, ~u);
add_arc( u, l); add_arc( u, l);
} }