# Check that the shifting code is not confused by domains that
# have a non-obviously fixed value.
[tsteps, length] -> { S_4[iter] -> [iter, 0, o2, o3, 0, o5, o6, 3] : exists (e0 = [(o2)/32], e1 = [(o3)/32], e2 = [(-length + o5)/32], e3 = [(-2length + o6)/32]: tsteps = 2 and 32e0 = o2 and 32e1 = o3 and 32e2 = -length + o5 and 32e3 = -2length + o6 and o2 <= length and o2 >= -31 + length and o3 <= 2length and o3 >= -30 + 2length and o5 >= 0 and o5 <= 31 and o6 >= 0 and o6 <= 30 and iter <= 1 and iter >= 0); S_3[iter, i, j] -> [iter, o1, o2, o3, o4, o5, o6, 2] : exists (e0 = [(o1)/32], e1 = [(o2)/32], e2 = [(o3)/32], e3 = [(-i + o4)/32], e4 = [(-j + o5)/32], e5 = [(-2j + o6)/32]: tsteps = 2 and 32e0 = o1 and 32e1 = o2 and 32e2 = o3 and 32e3 = -i + o4 and 32e4 = -j + o5 and 32e5 = -2j + o6 and o1 <= i and o1 >= -31 + i and o2 <= j and o2 >= -31 + j and o3 <= 2j and o3 >= -30 + 2j and o4 >= 0 and o4 <= 31 and o5 >= 0 and o5 <= 31 and o6 >= 0 and o6 <= 30 and j >= 1 + i and i >= 0 and iter <= 1 and iter >= 0 and j <= -1 + length); S_0[iter, i, j] -> [iter, 0, o2, o3, 0, o5, o6, 4] : exists (e0 = [(o2)/32], e1 = [(o3)/32], e2 = [(-i + o5)/32], e3 = [(-31 + j - o6)/32]: tsteps = 2 and 32e0 = o2 and 32e1 = o3 and 32e2 = -i + o5 and 32e3 = -31 + j - o6 and o2 <= i and o2 >= -31 + i and o3 <= 1 + j and o3 >= -30 + j and o5 >= 0 and o5 <= 31 and o6 >= 0 and o6 <= 31 and i <= -1 + length and i >= 0 and iter >= 0 and iter <= 1 and j <= -1 + length and j >= 0) }
[tsteps, length] -> {  : length >= 0 and length <= 1024 and tsteps = 2 }
{ }