INFO:Detectors: Contract locking ether found in : Contract OnlyLocked has payable functions: - receive (tests/locked_ether-0.5.1.sol#4-6) But does not have a function to withdraw the ether Reference: https://github.com/crytic/slither/wiki/Detector-Documentation#contracts-that-lock-ether INFO:Slither:/home/travis/build/crytic/slither/scripts/../tests/expected_json/locked_ether-0.5.1.locked-ether.json exists already, the overwrite is prevented INFO:Slither:tests/locked_ether-0.5.1.sol analyzed (4 contracts), 1 result(s) found