Test segfault 45
================

Segfault reported in https://github.com/Normaliz/PyNormaliz/issues/45

>>> from PyNormaliz import NmzCone, NmzResult
>>> polytope = NmzCone(vertices=[(-3,-2,-1,1), (-1,1,-1,2), (1,1,-1,1), (1,1,1,1)])
>>> NmzResult(polytope, "EhrhartQuasiPolynomial") == [[6, 7, 6, 5], 6]
True
