TRS:
 { f(x, a()) -> x,
  f(x, g(y)) -> f(g(x), y)}
 Cdiprover:
  Interpretation class: pizerosimplemixed
  Complexity bound: POLYTIME COMPUTABLE
  g(X2) = + 1*X2 + 1
  a = + 1
  f(X1, X0) = + 0*X1^2 + 0*X0^2 + 2*X1 + 0 + 3*X0 + 0*X0*X1
  
  Qed