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