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    Crowbar is a tool that combines afl-persistent’s instrumentation with quickcheck-like property-based testing. afl-fuzz is a great tool for detecting crashes, but Crowbar helps us go a step farther and automatically discover inputs which cause our program to no longer have the properties we expect it to have.

    Interesting combination of two great tools. Good find, Nick!

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      Thanks. Interestingly, I found it in the New section of Hacker News. I thought that was some Lobsters material that probably wouldn’t make it to the front page of HN even with my super-vote. Since you mentioned it, I looked for submitters name to give credit but gone entirely from main feed and new. (snap fingers) Just like that!