[Ny] -> { S1[i0, i1, 2i0, -2i0 + 2i1, i4] -> [i0 + i1, i1, i4, 2i0, -2i0 + 2i1, i4] : i0 >= 0 and i0 <= 1 and i1 >= 1 + i0 and 2i1 <= -1 + Ny + 2i0 and i4 >= 1 and i4 <= 2; S2[i0, i1, 2i0, -1 - 2i0 + 2i1, i4] -> [i0 + i1, i1, i4, 2i0, -2i0 + 2i1, 1 + i4] : i0 >= 0 and i0 <= 1 and i1 >= 1 + i0 and 2i1 <= Ny + 2i0 and i4 >= 1 and i4 <= 2 }
[Ny] -> {  :  }
[Ny] -> { [i, j, k, l, m, n] -> separate[x] : x >= 2 }