[M] -> { S2[i0, 2 + i0] -> [i0, 2 + i0, 1] : i0 >= 1 and i0 <= M; S1[i0, i1] -> [i0, i1, 0] : i0 >= 1 and i1 >= 1 and i0 <= M and i1 <= M }
[M] -> {  : M >= 2 }
[M] -> { [i, j, k] -> separate[o0] }