Segmentation fault for large number of nodes

[HCYANG2000]

Hi, there are some segmentation faults without specific error info when using TSPSolver to calculate the ground truth, especially when the size goes beyond 650.

[jvkersch]

@HCYANG2000 Do you have a small, self-contained example that demonstrates the problem?

[HCYANG2000]

Here's the code I running: https://github.com/chaitjo/learning-tsp/blob/master/data/tsp/generate_tsp.py
When I run for the big graph, here's the error I got

another error that occurred is the segmentation error without further notice.
Thanks!

[jvkersch]

Thanks! I will have a look and try to reproduce the issue.