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Fix memory smash on double free of clauses

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Signed-off-by: nikolajbjorner <nbjorner@microsoft.com>
This commit is contained in:
nikolajbjorner 2015-02-23 10:28:32 -08:00
parent a96a9a076d
commit 0d9f949ab2
6 changed files with 32 additions and 1 deletions
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19
src/sat/sat_integrity_checker.cpp
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@ -207,6 +207,24 @@ namespace sat {
}
return true;
}
bool integrity_checker::check_disjoint_clauses() const {
uint_set ids;
clause_vector::const_iterator it = s.m_clauses.begin();
clause_vector::const_iterator end = s.m_clauses.end();
for (; it != end; ++it) {
ids.insert((*it)->id());
}
it = s.m_learned.begin();
end = s.m_learned.end();
for (; it != end; ++it) {
if (ids.contains((*it)->id())) {
TRACE("sat", tout << "Repeated clause: " << (*it)->id() << "\n";);
return false;
}
}
return true;
}
bool integrity_checker::operator()() const {
if (s.inconsistent())
@ -216,6 +234,7 @@ namespace sat {
SASSERT(check_watches());
SASSERT(check_bool_vars());
SASSERT(check_reinit_stack());
SASSERT(check_disjoint_clauses());
return true;
}
};