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Handle bailouts in conflict_core

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This commit is contained in:
Jakob Rath 2021-09-13 11:48:28 +02:00
parent 79d7ae5417
commit f1ce0e233a
2 changed files with 16 additions and 22 deletions
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25
src/math/polysat/conflict_core.cpp
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@ -262,18 +262,23 @@ namespace polysat {
for (auto c : cjust_v)
insert(c);
for (auto* engine : ex_engines)
if (engine->try_explain(v, *this))
return true;
if (!is_bailout()) {
for (auto* engine : ex_engines)
if (engine->try_explain(v, *this))
return true;
// No value resolution method was successful => fall back to saturation and variable elimination
while (s().inc()) {
// TODO: as a last resort, substitute v by m_value[v]?
if (try_eliminate(v))
return true;
if (!try_saturate(v))
break;
// No value resolution method was successful => fall back to saturation and variable elimination
while (s().inc()) {
// TODO: as a last resort, substitute v by m_value[v]?
if (try_eliminate(v))
return true;
if (!try_saturate(v))
break;
}
set_bailout();
}
m_vars.insert(v);
return false;
}