YES Termination: (Ranking Functions Found) ------------ l1: < < 1 + x_13_0 >, < y_17_0 > > l3: < < 1 + x_13_0 >, < y_17_0 > > l4: < < 1 + x_13_0 > > l5: < < x_13_0 > > l6: < < x_13_0 > > method 1