(GOAL COMPLEXITY) (STARTTERM (FUNCTIONSYMBOLS f3)) (VAR A B C D) (RULES f2(A,B,C) -> Com_1(f2(-B + A,1 + B,C)) :|: A >= 1 f3(A,B,C) -> Com_1(f2(A,B,C)) :|: B >= 1 f2(A,B,C) -> Com_1(f4(A,B,D)) :|: 0 >= A f3(A,B,C) -> Com_1(f4(A,B,D)) :|: 0 >= B )