Invariant for loop [anonymous_loop_0] is
  (((0 <= ((!y * 52) + !x) /\ 0 <= (!y + 1)) /\ !y <= !x) /\ o = 0) /\ o1 = 0
Domains for loop [anonymous_loop_0] are
  o1 = [0;0]; x = [0;+oo[; o = [0;0]; y = [-1;+oo[
File bench/infer/junjie.mlw:
Goal b'vc.
Prover result is: Unknown () (0.01s).

