src/third_party/llvm-project/polly/lib/External/isl/test_inputs/codegen/pldi2012/figure8_a.in

[n] -> { s0[i,j] -> [i,j] : exists alpha, beta: 1 <= i <= n and i <= j <= n and
			    i = 1 + 4 alpha and j = i + 3 beta}
[n] -> { : }
[n] -> {}