NO
Nontermination proof succeeded
Found this recurrent set for cutpoint 5: 0 <= arg1 and 0 <= arg1P and 0 <= arg2 and 0 <= arg2P and 0 <= arg1+arg2P and arg1P-arg1 <= 0 and arg1-arg1P <= 0 and 0 <= arg1P+arg1 and 0 <= arg1P+arg2P and 0 <= arg2+arg1 and 0 <= arg2+arg1P and arg2-arg2P <= 0 and arg2P-arg2 <= 0 and 0 <= arg2+arg2P and -arg1 <= 0 and arg2-arg1 <= 0 and -arg2 <= 0
Errors: