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speed-up handling of cnf input to inc_sat_solver

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2019-01-11 20:52:19 -08:00
parent 9bd4050e0c
commit b8d18c6c6d
7 changed files with 133 additions and 57 deletions
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16
src/sat/sat_simplifier.cpp
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@ -349,7 +349,7 @@ namespace sat {
}
if (sz == 2) {
s.mk_bin_clause(c[0], c[1], c.is_learned());
s.del_clause(c);
s.del_clause(c, false);
continue;
}
*it2 = *it;
@ -611,10 +611,15 @@ namespace sat {
break;
}
}
if (j < sz) {
if (s.m_config.m_drat) s.m_drat.del(c);
if (j < sz && !r) {
if (s.m_config.m_drat) {
m_dummy.set(c.size(), c.begin(), c.is_learned());
}
c.shrink(j);
if (s.m_config.m_drat) s.m_drat.add(c, true);
if (s.m_config.m_drat) {
s.m_drat.add(c, true);
s.m_drat.del(*m_dummy.get());
}
}
return r;
}
@ -2020,8 +2025,7 @@ namespace sat {
for (auto & c2 : m_neg_cls) {
m_new_cls.reset();
if (!resolve(c1, c2, pos_l, m_new_cls))
continue;
if (false && v == 767) IF_VERBOSE(0, verbose_stream() << "elim: " << c1 << " + " << c2 << " -> " << m_new_cls << "\n");
continue;
TRACE("resolution_new_cls", tout << c1 << "\n" << c2 << "\n-->\n" << m_new_cls << "\n";);
if (cleanup_clause(m_new_cls))
continue; // clause is already satisfied.