After Finishing training Optimization,What procedures will be executed,only the testing?

The console shows “I FINISHED Optimization”. For a long time after that, the console shows nothing. I wander what process is running. If it is only the testing process, I believe this process will not run for such a long time(more than 3 days).

If you have not disabled it, then yes, testing will happen. This is a very instensive process, so it’s expected to take some time. How long depends on your hardware.