MAYBE
* Step 1: AddSinks MAYBE
    + Considered Problem:
        Rules:
          0. f0(A,B) -> f1(A,B)            [A >= 1] (1,1)
          1. f1(A,B) -> f1(1 + A,-1*A + B) [B >= 1] (?,1)
        Signature:
          {(f0,2);(f1,2)}
        Flow Graph:
          [0->{1},1->{1}]
        
    + Applied Processor:
        AddSinks
    + Details:
        ()
* Step 2: Failure MAYBE
  + Considered Problem:
      Rules:
        0. f0(A,B) -> f1(A,B)            [A >= 1] (1,1)
        1. f1(A,B) -> f1(1 + A,-1*A + B) [B >= 1] (?,1)
        2. f1(A,B) -> exitus616(A,B)     True     (?,1)
      Signature:
        {(exitus616,2);(f0,2);(f1,2)}
      Flow Graph:
        [0->{1,2},1->{1,2},2->{}]
      
  + Applied Processor:
      LooptreeTransformer
  + Details:
      We construct a looptree:
        P: [0,1,2]
        |
        `- p:[1] c: []
MAYBE