Simple bifiltration crash

[xoltar]

The following bifiltration (from the pyrivet test suite) crashes with SIGSEGV:

bifiltration
x_label
y_label
1 2 4 ; -1 -2
2 4 5 ; -1 -2
0 1 3 ; -1 -2
1 3 4 ; -1 -2
0 2 3 ; -1 -2
2 5 3 ; -1 -2
0 1 2 ; 3 -2
3 4 5 ; -1 2

[mlesnick]

I believe that the issue is with the input file. A while ago, the bifiltration input format was changed. To compute homology in dimension j, one must explicitly specify the simplices in dimension j-1,j,and j+1. RIVET no longer infers the faces from the top dimensional simplices.

[xoltar]

Ah, that explains it, thanks! I'll update the test suite then.