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Oh that is super cool. Great prior art to study in combo with Loom. Very excited to dig in - imagine if there was an easy-to-use data race tester where you didn't have to figure out the interleaving points up front? Just point it at your code and let it find them. Exciting.

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Loom does exhaustive search, with clever methods to prune it. On real world programs, you have to set a limit to that because it obviously grows extremely quickly even with the pruning.

I've built something similar to Loom, except it's more focused on extensively modeling the C++11/Rust memory model (https://github.com/reitzensteinm/temper). My experience is that fairly shallow random concurrent fuzzing yields the vast majority of all concurrency bugs.

Antithesis (https://antithesis.com/) are probably the leaders of the pack in going deeper.

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