how to let afl save timeout testcase

[hac425xxx]

I'm fuzzing some program,it has many timeout case, I want to debug these testcase, how to let afl save timeout testcase for me?

[vanhauser-thc]

it automatically saved them when the timeouts are sever (x2 of configured timeout), they are then called "hangs".
you can reduce the timeout (with -t) and then easier create hangs. or increase timeout and have those timeouts also complete (as they do not take that much longer then the set timeout)