Discovered a problem
I didn't modify your source code, I ran it directly using the program you compiled
However, after running for a period of time, a large number of errors occurred.
DPs buffer overflow，some points lost, increase DP value!
DPs buffer overflow，some points lost, increase DP value!
DPs buffer overflow，some points lost, increase DP value!
At the beginning, it was normal, but the error message above kept appearing. May I ask why?
Yes, if parameters are not optimal, in some cases it will show you a warning.
In this case you should increase "-dp" option value, DB is growing and CPU cannot add so many DPs every second.