YES


Termination: (Ranking Functions Found)
------------
l23: < < -ip_0 + n_0 > >
l5: < < -1 -ip_0 + n_0 >, < -iq_0 + n_0, -iq_0 + n_0 > >
l6: < < -ip_0 + n_0 > >
l7: < < -1 -ip_0 + n_0 >, < 1 -iq_0 + n_0, 0 > >


method 1