NO Nontermination proof succeeded Found this recurrent set for cutpoint 10: 0 <= L_0 and L_0 <= 0 and 0 <= L_post and L_post <= 0 and L_post-L_0 <= 0 and L_0-L_post <= 0 and L_post+L_0 <= 0 and 0 <= L_post+L_0 and 0 <= 0 Errors: