[M] -> { S1[i0, i1, i2, i3] -> [0, i2 + i3, 0, i1, 0, i0, 0, i2, 0] : i0 >= 1 and i0 <= M and i1 >= 1 and i1 <= M and i2 >= 1 and i2 <= M and i3 >= 1 and i3 <= M }
[M] -> {  :  }
[M] -> { [i, j, k, l, m, n, o, p, q] -> separate[o0] }