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marxin / cvise

Super-parallel Python port of the C-Reduce
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Cvise stopped abnormally midway #147

Closed martinwz closed 3 weeks ago

martinwz commented 1 month ago

Hi, I was using Cvise to reduce my c code. However, Cvise stopped after running for 20 minutes, as shown in the figure. My environment is Ubuntu 18.04, Python 3.8.6, and clang 10. What went wrong? image

marxin commented 1 month ago

Hey! Thanks for using C-Vise tool. Please share a reproducer I can use and the full log output of the reduction. And please include which C-Vise version do you use?

martinwz commented 1 month ago

Hey! Thanks for using C-Vise tool. Please share a reproducer I can use and the full log output of the reduction. And please include which C-Vise version do you use?

I build cvise 2.10 from the source code. I'm sorry, I can't provide reproducible files. I reduce C code and I used C code to test a large commerical compiler (mainly 100+GB). It is difficult to share and download the compiler. So, is there any other way to help locate the problem?

marxin commented 1 month ago

Ok, that's fine. So let's try a remote debugging session. I will need to know:

martinwz commented 1 month ago

Sorry, I did not save the origianl log outpuit but I can provide a similar one. The full log is shown in the file. The version Pebble is 5.0.7 and I can reproduce the problem every time. My workspaces are build on Ubuntu 18.04, so it is difficult to test it on a more modern Ubuntu now. I will it later. full_log.txt

marxin commented 1 month ago

All right, it seems I missed catching a TimeoutError from Pebble. Can you please test the PR #148?

Anyway, I would recommend running a reduction command wrapped in a meaningful timeout (I bet your compiler should not spend 300s compiling a rather small input, right?).

cvise -c 'timeout 10 g++ tramp3d-v4.ii ... can help you.