(GOAL COMPLEXITY) (STARTTERM (FUNCTIONSYMBOLS f20)) (VAR A B) (RULES f20(A,B) -> Com_1(f1(0,0)) f1(A,B) -> Com_1(f1(A + 1,B + 1)) f1(A,B) -> Com_1(f30(A,B)) :|: A >= B + 1 )