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fix drat for units learned from binary clause resolution

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2019-01-12 00:12:20 -08:00
parent 63d480fd92
commit 836f156d54
6 changed files with 76 additions and 59 deletions
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4
src/sat/sat_cleaner.cpp
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@ -135,7 +135,7 @@ namespace sat {
break;
default:
SASSERT(s.value(c[0]) == l_undef && s.value(c[1]) == l_undef);
if (s.m_config.m_drat && new_sz < i) {
if (s.m_config.m_drat && new_sz < sz) {
tmp.set(c.size(), c.begin(), c.is_learned());
}
c.shrink(new_sz);
@ -144,7 +144,7 @@ namespace sat {
if (!c.frozen()) {
s.attach_clause(c);
}
if (s.m_config.m_drat && new_sz < i) {
if (s.m_config.m_drat && new_sz < sz) {
// for optimization, could also report deletion
// of previous version of clause.
s.m_drat.add(c, true);