solidity/test/libsolidity/smtCheckerTests/inheritance/receive_fallback.sol

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// 2 warnings, receive and A.g
contract A {
uint x;
receive () external payable {
assert(x == 1);
}
function g() public view {
assert(x == 1);
}
}
// 3 warnings, fallback, A.receive and A.g
contract B is A {
uint y;
fallback () external {
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assert(x == 1);
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}
}
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// ====
// SMTEngine: all
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// ----
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// Warning 6328: (87-101): CHC: Assertion violation happens here.\nCounterexample:\nx = 0\n\nTransaction trace:\nA.constructor()\nState: x = 0\nA.receive()
// Warning 6328: (136-150): CHC: Assertion violation happens here.\nCounterexample:\nx = 0\n\nTransaction trace:\nA.constructor()\nState: x = 0\nA.g()
// Warning 6328: (255-269): CHC: Assertion violation happens here.\nCounterexample:\ny = 0, x = 0\n\nTransaction trace:\nB.constructor()\nState: y = 0, x = 0\nB.fallback()