mirror of
https://github.com/ethereum/solidity
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12 lines
919 B
Solidity
12 lines
919 B
Solidity
pragma experimental SMTChecker;
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contract C {
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function f(int x, int y) public pure returns (int) {
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require(x + y >= x);
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return x + y;
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}
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}
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// ----
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// Warning 3944: (111-116): CHC: Underflow (resulting value less than -57896044618658097711785492504343953926634992332820282019728792003956564819968) happens here.\nCounterexample:\n\nx = (- 1)\ny = (- 57896044618658097711785492504343953926634992332820282019728792003956564819968)\n = 0\n\nTransaction trace:\nC.constructor()\nC.f((- 1), (- 57896044618658097711785492504343953926634992332820282019728792003956564819968))
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// Warning 4984: (111-116): CHC: Overflow (resulting value larger than 0x80 * 2**248 - 1) happens here.\nCounterexample:\n\nx = 1\ny = 57896044618658097711785492504343953926634992332820282019728792003956564819967\n = 0\n\nTransaction trace:\nC.constructor()\nC.f(1, 57896044618658097711785492504343953926634992332820282019728792003956564819967)
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