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Report out of bounds index access

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This commit is contained in:
Leonardo Alt
2021-03-30 10:28:48 +02:00
parent 2346ec1c0c
commit dbd067d6db
208 changed files with 1619 additions and 608 deletions
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libsolidity/formal/SMTEncoder.cpp
+4
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@@ -1382,6 +1382,9 @@ void SMTEncoder::endVisit(IndexAccess const& _indexAccess)
if (_indexAccess.annotation().type->category() == Type::Category::TypeType)
return;
makeOutOfBoundsVerificationTarget(_indexAccess);
if (auto const* type = dynamic_cast<FixedBytesType const*>(_indexAccess.baseExpression().annotation().type))
{
smtutil::Expression base = expr(_indexAccess.baseExpression());
@@ -1430,6 +1433,7 @@ void SMTEncoder::endVisit(IndexAccess const& _indexAccess)
auto arrayVar = dynamic_pointer_cast<smt::SymbolicArrayVariable>(array);
solAssert(arrayVar, "");
Type const* baseType = _indexAccess.baseExpression().annotation().type;
defineExpr(_indexAccess, smtutil::Expression::select(
arrayVar->elements(),