(GOAL COMPLEXITY)
(STARTTERM (FUNCTIONSYMBOLS f1))
(VAR A B C)
(RULES
  f1(A,B,C) -> Com_1(f2(A,B,B + 1)) :|: A >= B && A >= 1 && B >= 1
  f2(A,B,C) -> Com_1(f3(A,B,C)) :|: B >= C + 1
  f2(A,B,C) -> Com_1(f3(A,B,C)) :|: C >= B + 1
  f3(A,B,C) -> Com_1(f2(A,B,0)) :|: A + 1 >= 0 && C >= 1 && C >= A + 1
  f3(A,B,C) -> Com_1(f2(A,B,C + 1)) :|: A >= C && C + 1 >= 0
)