When compiling with -O3, it seems that some GFA will not parse. The file is opened and at some point a bad_alloc is thrown. This was first mentioned in a vg issue.
I've changed the makefile to compiler with -O0 but it's not optimal. A better solution would be to trace the code and see where we go wrong.
Scratch all that - twopaco just doesn't use cigars on paths, and the path_elems are collapsed to one line.
Scratch all that - twopaco just doesn't use cigars on paths, and the path_elems are collapsed to one line.
This needs to be fixed.