(GOAL COMPLEXITY)
(STARTTERM (FUNCTIONSYMBOLS f0))
(VAR A B)
(RULES
  f0(A) -> Com_1(f4(B))
  f4(A) -> Com_1(f4(A + 1)) :|: 3 >= A && A >= 1
  f4(A) -> Com_1(f4(1)) :|: 0 >= A && 3 >= A
  f4(A) -> Com_1(f12(A)) :|: A >= 4
)