(GOAL COMPLEXITY) (STARTTERM (FUNCTIONSYMBOLS start)) (VAR A B) (RULES eval1(A, B) -> Com_1(eval2(A, 0)) [ A >= 0 ] eval2(A, B) -> Com_1(eval2(A, B + 1)) [ A - B >= 0 /\ B >= 0 /\ A + B >= 0 /\ A >= 0 /\ A >= B + 1 ] eval2(A, B) -> Com_1(eval1(A - 1, B)) [ A - B >= 0 /\ B >= 0 /\ A + B >= 0 /\ A >= 0 /\ B >= A ] start(A, B) -> Com_1(eval1(A, B)) )