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don't add viable premises on decisions

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2021-11-25 20:19:58 +01:00
parent a4e29ecd7e
commit fc6e127cca
4 changed files with 13 additions and 10 deletions
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10
src/math/polysat/conflict.cpp
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@ -298,12 +298,16 @@ namespace polysat {
return false;
}
auto const& j = s.m_justification[v];
s.inc_activity(v);
m_vars.remove(v);
for (auto const& c : s.m_viable.get_constraints(v))
insert(c);
if (!j.is_decision()) {
for (auto const& c : s.m_viable.get_constraints(v))
insert(c);
}
for (auto* engine : ex_engines)
if (engine->try_explain(v, *this))
@ -318,7 +322,7 @@ namespace polysat {
break;
}
set_bailout();
if (s.is_assigned(v) && s.m_justification[v].is_decision())
if (s.is_assigned(v) && j.is_decision())
m_vars.insert(v);
return false;
}