(GOAL COMPLEXITY) (STARTTERM (FUNCTIONSYMBOLS f1)) (VAR A B) (RULES f1(A, B) -> Com_1(f2(A, B)) [ A >= 1 /\ B >= 1 ] f2(A, B) -> Com_1(f2(A - 1, B)) [ B - 1 >= 0 /\ A + B - 2 >= 0 /\ A - 1 >= 0 /\ A >= 2 /\ B >= 1 ] f2(A, B) -> Com_1(f2(A, B - 1)) [ B - 1 >= 0 /\ A + B - 2 >= 0 /\ A - 1 >= 0 /\ A >= 1 /\ B >= 2 ] )