Constructing initial basis...
Size of triangular part = 5790
Solving LP relaxation...
GLPK Simplex Optimizer, v4.47
5790 rows, 4454 columns, 3571620 non-zeros
Program received signal SIGSEGV, Segmentation fault.
0x00007feb46b3eedc in getenv () from /lib/x86_64-linux-gnu/libc.so.6
(gdb) ba
#0 0x00007feb46b3eedc in getenv () from /lib/x86_64-linux-gnu/libc.so.6
#1 0x0000000000000001 in ?? ()
#2 0x00007feb46ea3da0 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#3 0x0000000000000001 in ?? ()
#4 0x0000000000000000 in ?? ()