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Merge pull request #6343 from ethereum/smt_fix_deref_null

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[SMTChecker] Fix nullptr deref
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chriseth 2019-03-21 16:16:03 +01:00 committed by GitHub
commit 939a178193
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libsolidity/formal/SMTChecker.cpp
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@ -791,7 +791,7 @@ void SMTChecker::endVisit(Literal const& _literal)
void SMTChecker::endVisit(Return const& _return)
{
if (knownExpr(*_return.expression()))
if (_return.expression() && knownExpr(*_return.expression()))
{
auto returnParams = m_functionPath.back()->returnParameters();
if (returnParams.size() > 1)