# Error when using elementary_divisors()

Can someone please tell me what this error means?

```
***-macbook:sage faculty1$ ./sage ../H-nqk.sage> ../test5.out
Traceback (most recent call last):
File "../H-nqk.py", line 38, in <module>
print A.elementary_divisors()
File "matrix_integer_dense.pyx", line 2065, in sage.matrix.matrix_integer_dense.Matrix_integer_dense.elementary_divisors (sage/matrix/matrix_integer_dense.c:17905)
File "gen.pyx", line 8525, in sage.libs.pari.gen.gen.matsnf (sage/libs/pari/gen.c:43676)
RuntimeError: Illegal instruction
```

When I execute the program using the online notebook everything runs fine, so it must be a computer issue. This error occurred when trying to compute the elementary divisors of a 125X125 matrix. Strange thing is, when running the program using a smaller matrix there was no error.

Would really appreciate any help.

Can you share the file H-nqk.py by uploading it somewhere or copy-pasting it on pastebin? This would help people investigate the error you encountered. Also, which version of Sage are you using?