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Merge pull request #11165 from blishko/smt-abi-no-args

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[SMTChecker] Fix ICE on ABI functions with no arguments
This commit is contained in:
Leonardo
2021-03-25 15:21:57 +01:00
committed by GitHub
parent ab42f3af3c 5293f05ee3
commit 7e1be52281
2 changed files with 26 additions and 1 deletions
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test/libsolidity/smtCheckerTests/abi/abi_encode_no_arguments.sol
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pragma experimental SMTChecker;
contract C {
function f() pure public {
bytes memory res = abi.encode();
assert(res.length == 0); // should hold
assert(res.length > 0); // should fail
res = abi.encodePacked();
assert(res.length == 0); // should hold
assert(res.length > 0); // should fail
res = abi.encodeWithSelector(0);
assert(res.length == 4); // should hold, but SMTChecker cannot know this yet
res = abi.encodeWithSignature("");
assert(res.length == 4); // should hold, but SMTChecker cannot know this yet
}
}
// ----
// Warning 6328: (152-174): CHC: Assertion violation happens here.\nCounterexample:\n\n\nTransaction trace:\nC.constructor()\nC.f()
// Warning 6328: (263-285): CHC: Assertion violation happens here.\nCounterexample:\n\n\nTransaction trace:\nC.constructor()\nC.f()
// Warning 6328: (339-362): CHC: Assertion violation happens here.
// Warning 6328: (455-478): CHC: Assertion violation happens here.