solidity/test/libsolidity/smtCheckerTests/loops/do_while_1_false_positives.sol

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2018-11-09 17:50:06 +00:00
pragma experimental SMTChecker;
contract C
{
function f(uint x) public pure {
require(x < 100);
do {
// Overflows due to resetting x.
x = x + 1;
} while (x < 1000);
// The assertion is true but we can't infer so
// because x is touched in the loop.
assert(x > 0);
}
}
// ====
// SMTSolvers: z3
2018-11-09 17:50:06 +00:00
// ----
// Warning: (150-155): Overflow (resulting value larger than 2**256 - 1) happens here