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fix validation code for pb

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2022-07-21 08:58:32 -07:00
parent a66095bb08
commit cf5a8fd248
1 changed files with 1 additions and 1 deletions
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2
src/sat/smt/pb_solver.cpp
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@ -1823,7 +1823,7 @@ namespace pb {
}
bool solver::validate_watch(pbc const& p, literal alit) const {
if (value(p.lit()) != l_true)
if (p.lit() == sat::null_literal || value(p.lit()) != l_true)
return true;
for (unsigned i = 0; i < p.size(); ++i) {
literal l = p[i].second;