WindowsIteration terminating abnormally due to MemoryError about certfuzz

[antnks]

This is how memory usage looks like just before the termination:

[wdormann]

I've not been able to track down the cause of this problem. Mostly because it seems to be nondeterministic. In particular, in my testing, BFF's memory usage isn't a continual growth where you can see what is being leaked. But rather there are occasional times where the usage grows to the point where it's too much for a 32-bit Windows python process to handle.

If you run BFF in debug mode, you can use heapy to see how memory is being used. Maybe you'll have better luck than I have had?

See also #15. In my testing using 64-bit python seems to be a viable workaround.

[antnks]

The issue is indeed memory related, as well as related to a non-optimized array handling
I tried to mitigate the crash by adding try/catch and force minimizer end: #29
With this change I did not get crashes after 4 days of running, but there are still performance issues when fuzzing big files using a 32 bit Python

[wdormann]

Thanks! I'll have a look and incorporate the change if it passes the smoke test.