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fixing try/catch encoding for BMC, refactoring

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This commit is contained in:
Martin Blicha
2021-01-11 13:36:03 +01:00
parent 064e9a5de6
commit dd43ce1578
4 changed files with 33 additions and 22 deletions
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libsolidity/formal/SMTEncoder.cpp
+20
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@@ -2107,6 +2107,26 @@ smtutil::Expression SMTEncoder::compoundAssignment(Assignment const& _assignment
return values.first;
}
void SMTEncoder::tryCatchAssignment(vector<shared_ptr<VariableDeclaration>> const& _variables, smt::SymbolicVariable const& _rhs)
{
if (_variables.size() > 1)
{
auto const* symbTuple = dynamic_cast<smt::SymbolicTupleVariable const*>(&_rhs);
solAssert(symbTuple, "");
auto const& symbComponents = symbTuple->components();
solAssert(symbComponents.size() == _variables.size(), "");
for (unsigned i = 0; i < symbComponents.size(); ++i)
{
auto param = _variables.at(i);
solAssert(param, "");
solAssert(m_context.knownVariable(*param), "");
assignment(*param, symbTuple->component(i));
}
}
else if (_variables.size() == 1)
assignment(*_variables.front(), _rhs.currentValue());
}
void SMTEncoder::assignment(VariableDeclaration const& _variable, Expression const& _value)
{
// In general, at this point, the SMT sorts of _variable and _value are the same,