YES


Termination: (Ranking Functions Found)
------------
eval_main_bb1_in: < < 2 * v_x.0 + 2 * v_y.0 >, < v_1 + v_x.0 > >
eval_main_bb2_in: < < 2 * v_x.0 + 2 * v_y.0 >, < v_1 + v_x.0 > >
eval_main_bb3_in: < < 2 * v_2 >, < v_1 + v_x.0 > >
eval_main_bb4_in: < < -2 + 2 * v_2 > >


method 1