GAP 4.8.9 installation with standard packages -- copy to your CoCalc project to get it
7 Hilbert basis elements 7 Hilbert basis elements of degree 1 4 generators of integral closure of the ideal 5 extreme rays 5 support hyperplanes embedding dimension = 4 rank = 4 (maximal) external index = 1 internal index = 1 original monoid is integrally closed size of partial triangulation = 0 resulting sum of |det|s = 0 grading: 1 1 1 -2 degrees of extreme rays: 1: 5 Hilbert basis elements are of degree 1 ideal is not primary to the ideal generated by the indeterminates *********************************************************************** 7 Hilbert basis elements of degree 1: 0 0 1 0 0 1 0 0 0 3 0 1 1 0 0 0 1 2 0 1 2 1 0 1 3 0 0 1 0 further Hilbert basis elements of higher degree: 4 generators of integral closure of the ideal: 0 3 0 1 2 0 2 1 0 3 0 0 5 extreme rays: 0 0 1 0 0 1 0 0 0 3 0 1 1 0 0 0 3 0 0 1 5 support hyperplanes: 0 0 0 1 0 0 1 0 0 1 0 0 1 0 0 0 1 1 0 -3