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