solve_tsp_record_to_record reachers Infinite loop with a simple example

When I try to run the following code, it just keeps running and won't give me a result.
```py
from python_tsp.heuristics import solve_tsp_record_to_record
import numpy as np

dis = np.array([[0, 1], [1, 0]])
[order, dist] = solve_tsp_record_to_record(dis)
print(order)
print(dist)
```