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make the unsat/sat verdicts from cubing produce empty clause and models respectively

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2018-10-01 15:52:22 -07:00
parent 75b77979fe
commit 08c58ae614
2 changed files with 28 additions and 2 deletions
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2
src/sat/sat_lookahead.cpp
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@ -2137,6 +2137,8 @@ namespace sat {
if (lit == null_literal) {
vars.reset();
for (auto v : m_freevars) if (in_reduced_clause(v)) vars.push_back(v);
m_model.reset();
init_model();
return l_true;
}
TRACE("sat", tout << "choose: " << lit << " cube: " << m_cube_state.m_cube << "\n";);