MAYBE
* Step 1: Failure MAYBE
  + Considered Problem:
      Rules:
        0. f1(A,B) -> f2(A,B)        [0 >= 1 + A + B && A >= 1]                                      (1,1)
        1. f2(A,B) -> f2(A + -1*B,B) [-2 + -1*B >= 0 && -3 + A + -1*B >= 0 && -1 + A >= 0 && A >= 0] (?,1)
      Signature:
        {(f1,2);(f2,2)}
      Flow Graph:
        [0->{1},1->{1}]
      
  + Applied Processor:
      Failing "Open problems left."
  + Details:
      Open problems left.
MAYBE