(GOAL COMPLEXITY) (STARTTERM (FUNCTIONSYMBOLS f1)) (VAR A B) (RULES f1(A,B) -> Com_1(f0(A,B)) f0(A,B) -> Com_1(f0(A + B,B)) :|: A >= 1 && B >= 1 f0(A,B) -> Com_1(f0(A + B,B)) :|: A >= 1 && 0 >= B + 1 )