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This commit is contained in:
Miguel Neves 2017-10-12 16:14:56 -07:00
parent bdce957ac8
commit 56496ead2f
2 changed files with 11 additions and 1 deletions
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11
src/sat/sat_lookahead.cpp
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@ -1672,6 +1672,17 @@ namespace sat {
change = true;
last_changed = lit;
}
{
// if l was derived from lit and ~lit -> l, then l is a necessary assignment
scoped_level _sl(*this, dl_lvl);
literal_vector const& lits = m_binary[(~l).index()];
for (literal l : lits) {
if (inconsistent()) break;
if (is_true(l) && !is_fixed_at(l, cl_fixed_truth)) {
assign(l);
}
}
}
SASSERT(inconsistent() || !is_unsat());
}
if (c_fixed_truth - 2 * m_lookahead.size() < base) {