I have been testing using the C-code base. I inserted the following simple code:

long stoneDivision (long n, int s_count, long* s) {
    printf ("30\n");
    return (30);
}

I compiled it on my RedHat 8.7 system. When I run it with the test input, it cored (tmp.c is the C-code base + above 4 lines of code):

# gcc tmp.c
# a.out
4                       <-- input one line at a time
64 5             
2 4 8 16 64
30               
Segmentation fault (core dumped)

Looks like there is some issue with the original C-code base.