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adding incremental cubing from API

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2017-09-28 09:06:17 -07:00
parent 260c27d58a
commit e507a6ccd1
18 changed files with 194 additions and 9 deletions
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19
src/sat/sat_solver/inc_sat_solver.cpp
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@ -344,6 +344,25 @@ public:
expr_ref result(lit2expr[l.index()].get(), m);
return result;
}
virtual expr_ref cube() {
sat::literal_vector lits;
lbool result = m_solver.cube(lits);
if (result == l_false || lits.empty()) {
return expr_ref(m.mk_false(), m);
}
if (result == l_true) {
return expr_ref(m.mk_true(), m);
}
expr_ref_vector fmls(m);
expr_ref_vector lit2expr(m);
lit2expr.resize(m_solver.num_vars() * 2);
m_map.mk_inv(lit2expr);
for (sat::literal l : lits) {
fmls.push_back(lit2expr[l.index()].get());
}
return mk_and(fmls);
}
virtual void get_lemmas(expr_ref_vector & lemmas) {
if (!m_internalized) return;
sat2goal s2g;