TRS:
 {f(a(), x) -> g(a(), x),
  g(a(), x) -> f(b(), x),
  f(a(), x) -> f(b(), x)}
 Cdiprover:
  Interpretation class: pizerosimplemixed
  Complexity bound: POLYTIME COMPUTABLE
  b = + 1
  f(X3, X2) = + 2*X3^2 + 0*X2^2 + 2*X3 + 0 + 1*X2 + 0*X2*X3
  a = + 3
  g(X1, X0) = + 2*X1^2 + 0*X0^2 + 1*X1 + 0 + 1*X0 + 0*X0*X1
  
  Qed