At the time I wrote this code, I was a fairly inexperienced Python developer. So, the architecture of the application turned out to be pretty weird. Perhaps I should rewrite it.
1 epoch ended, best result: 202.0 shortest path [0, 6, 13, 14, 9, 11, 4, 5, 10, 3, 7, 1, 2, 8, 12]
2 epoch ended, best result: 192.0 shortest path [0, 5, 10, 3, 4, 7, 12, 6, 13, 14, 9, 11, 2, 1, 8]
3 epoch ended, best result: 182.0 shortest path [0, 14, 1, 2, 9, 8, 4, 10, 7, 3, 6, 5, 12, 11, 13]
4 epoch ended, best result: 182.0 shortest path [0, 14, 1, 2, 9, 8, 4, 10, 7, 3, 6, 5, 12, 11, 13]
5 epoch ended, best result: 182.0 shortest path [0, 14, 1, 2, 9, 8, 4, 10, 7, 3, 6, 5, 12, 11, 13]
6 epoch ended, best result: 177.0 shortest path [0, 3, 7, 10, 1, 8, 4, 11, 13, 14, 6, 5, 12, 2, 9]
7 epoch ended, best result: 177.0 shortest path [0, 3, 7, 10, 1, 8, 4, 11, 13, 14, 6, 5, 12, 2, 9]
8 epoch ended, best result: 177.0 shortest path [0, 3, 7, 10, 1, 8, 4, 11, 13, 14, 6, 5, 12, 2, 9]
9 epoch ended, best result: 170.0 shortest path [0, 7, 12, 2, 13, 11, 9, 8, 4, 1, 14, 6, 5, 10, 3]
10 epoch ended, best result: 164.0 shortest path [0, 4, 11, 2, 13, 12, 7, 3, 10, 14, 6, 5, 9, 8, 1]
11 epoch ended, best result: 164.0 shortest path [0, 4, 11, 2, 13, 12, 7, 3, 10, 14, 6, 5, 9, 8, 1]
21 epoch ended, best result: 163.0 shortest path [0, 13, 14, 6, 9, 2, 8, 1, 4, 3, 7, 10, 5, 11, 12]
26 epoch ended, best result: 154.0 shortest path [0, 8, 4, 3, 7, 10, 14, 6, 12, 9, 2, 1, 13, 11, 5]
28 epoch ended, best result: 140.0 shortest path [0, 13, 11, 4, 2, 8, 1, 7, 12, 9, 5, 6, 14, 10, 3]
50 epoch ended, best result: 140.0 shortest path [0, 13, 11, 4, 2, 8, 1, 7, 12, 9, 5, 6, 14, 10, 3]