YES


Termination: (Ranking Functions Found)
------------
l0: < < - y_0 >, < - x_0 > >
l3: < < - y_0 >, < -1 - x_0 > >
l4: < < - y_0 >, < -1 - x_0 > >
l2: < < - y_0 >, < - x_0 > >
l5: < < 0 > >