Add debug/verbose version to diagnose why it crashed

[kiwirives]

The first time I run the program, it crashed (IIRC, it was around 5%).
Second time, it was running good until it reached 6% of progress (3863 of 64271) when also crashed.
Third run is still working (18% 11569)

[MASACR99]

On it, gonna work on creating a .txt with info about what the program was doing and why it crashed

[kiwirives]

It just crashed at the beginning. I suspect you have concurrency issues