GAP 4.8.9 installation with standard packages -- copy to your CoCalc project to get it
0 module generators 1 Hilbert basis elements of recession monoid 1 vertices of polyhedron 1 extreme rays of recession cone 2 support hyperplanes of polyhedron (homogenized) embedding dimension = 3 affine dimension of the polyhedron = 1 rank of recession monoid = 1 size of partial triangulation = 0 resulting sum of |det|s = 0 dehomogenization: 0 0 1 module rank = 0 *********************************************************************** 0 module generators: 1 Hilbert basis elements of recession monoid: 0 1 0 1 vertices of polyhedron: -1 0 2 1 extreme rays of recession cone: 0 1 0 2 support hyperplanes of polyhedron (homogenized): 0 0 1 0 1 0 1 equations: 2 0 1 2 basis elements of lattice: 1 0 -2 0 1 0