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 0 vertices of polyhedron 1 extreme rays of recession cone 1 support hyperplanes of polyhedron (homogenized) embedding dimension = 3 affine dimension of the polyhedron = -1 rank of recession monoid = 1 dehomogenization: 0 0 1 module rank = 0 *********************************************************************** 0 module generators: 1 Hilbert basis elements of recession monoid: 0 1 0 0 vertices of polyhedron: 1 extreme rays of recession cone: 0 1 0 1 support hyperplanes of polyhedron (homogenized): 0 1 0 2 equations: 1 0 0 0 0 1 1 basis elements of lattice: 0 1 0