[PA#3] C++ exception with description "map::at: key not found" thrown in the test body.

[Hyeonjoon]

I'm executing test codes several times while generating seed numbers randomly.
I found that the case 'TestAccept_MultipleInterface1' with unreliable channel fails with a few seed numbers, and it fails
intermittently even with same seed numbers. The error message is as followed.
C++ exception with description "map::at: key not found" thrown in the test body.

It is hard to find the exact point it occurs, but it occurs during the test tear down(in _pthread_exit assembly).
I wonder if I should fix that kind of problem, or just ignore.

If there're some more information needed, let me know. Thanks.

[lgm9]

If same error happens on the grading (and your code terminates without making a desired output) you would not get scores of that test case.