YES Termination: (Ranking Functions Found) ------------ l0: < < 1 -__const_21_0 + x_5_0 > > l2: < < -__const_21_0 + x_5_0 >, < -__const_31_0 + y_6_0 > > l4: < < -__const_21_0 + x_5_0 >, < -__const_31_0 + y_6_0 > > method 1