Process finished with exit code 139 (interrupted by signal 11: SIGSEGV)

[kwkwvenusgod]

I am trying to enable trans_feature to get a more sophisticated model in seqlearn not only the unary term and pairwise term(transition matrix). But I encountered the exit error in the title. I am using my own dataset and there is no problem I tested using the provided cornell dataset. Have you ever encountered similar errors? The line that where exit happens is safe_add(A, B). It calls some compiled c code. I am not sure whether it is and how to solve it. Thank you very much