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Integer min and max values placed under SymbolicIntVar instead of SMTChecker

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This commit is contained in:
Leonardo Alt
2018-02-28 18:05:20 +01:00
parent f41591b3dd
commit 3b2851ee41
4 changed files with 9 additions and 19 deletions
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libsolidity/formal/SMTChecker.cpp
+3 -11
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@@ -24,6 +24,7 @@
#endif
#include <libsolidity/formal/SSAVariable.h>
#include <libsolidity/formal/SymbolicIntVariable.h>
#include <libsolidity/formal/VariableUsage.h>
#include <libsolidity/interface/ErrorReporter.h>
@@ -244,14 +245,14 @@ void SMTChecker::endVisit(TupleExpression const& _tuple)
void SMTChecker::checkUnderOverflow(smt::Expression _value, IntegerType const& _type, SourceLocation const& _location)
{
checkCondition(
_value < minValue(_type),
_value < SymbolicIntVariable::minValue(_type),
_location,
"Underflow (resulting value less than " + formatNumber(_type.minValue()) + ")",
"value",
&_value
);
checkCondition(
_value > maxValue(_type),
_value > SymbolicIntVariable::maxValue(_type),
_location,
"Overflow (resulting value larger than " + formatNumber(_type.maxValue()) + ")",
"value",
@@ -828,15 +829,6 @@ void SMTChecker::defineExpr(Expression const& _e, smt::Expression _value)
m_interface->addAssertion(expr(_e) == _value);
}
smt::Expression SMTChecker::minValue(IntegerType const& _t)
{
return smt::Expression(_t.minValue());
}
smt::Expression SMTChecker::maxValue(IntegerType const& _t)
{
return smt::Expression(_t.maxValue());
}
void SMTChecker::popPathCondition()
{
solAssert(m_pathConditions.size() > 0, "Cannot pop path condition, empty.");