Test segfault 37
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Segfault reported in https://github.com/Normaliz/PyNormaliz/issues/37

>>> import PyNormaliz
>>> p = PyNormaliz.NmzCone(cone=[], number_field=['a^2 - 2', 'a', '[1.414213562373095 +/- 2.99e-16]'], subspace=[], vertices=[[1, 1], [[[0, 1], [1, 1]], 1]])
