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[SMTChecker] Unknown answer for constant condition check should not do anything

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Leonardo Alt 2018-11-26 11:55:53 +01:00
parent 0b474d5299
commit aaaa92012c
1 changed files with 4 additions and 0 deletions
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4
libsolidity/formal/SMTChecker.cpp
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@ -889,6 +889,10 @@ void SMTChecker::checkBooleanNotConstant(Expression const& _condition, string co
{ {
// everything fine. // everything fine.
} }
else if (positiveResult == smt::CheckResult::UNKNOWN || negatedResult == smt::CheckResult::UNKNOWN)
{
// can't do anything.
}
else if (positiveResult == smt::CheckResult::UNSATISFIABLE && negatedResult == smt::CheckResult::UNSATISFIABLE) else if (positiveResult == smt::CheckResult::UNSATISFIABLE && negatedResult == smt::CheckResult::UNSATISFIABLE)
m_errorReporter.warning(_condition.location(), "Condition unreachable."); m_errorReporter.warning(_condition.location(), "Condition unreachable.");
else else