NO
* Step 1: FromIts NO
    + Considered Problem:
        Rules:
          0. f1(A,B) -> f1(A + -1*B,1 + B) [A >= 1] (?,1)
          1. f0(A,B) -> f1(A,B)            True     (1,1)
        Signature:
          {(f0,2);(f1,2)}
        Flow Graph:
          [0->{0},1->{0}]
        
    + Applied Processor:
        FromIts
    + Details:
        ()
* Step 2: CloseWith NO
    + Considered Problem:
        Rules:
          f1(A,B) -> f1(A + -1*B,1 + B)  [A >= 1]
          f0(A,B) -> f1(A,B)             True
        Signature:
          {(f0,2);(f1,2)}
        Rule Graph:
          [0->{0},1->{0}]
    + Applied Processor:
        CloseWith False
    + Details:
        ()

NO