NO
Nontermination proof succeeded
Found this recurrent set for cutpoint 6: 0 <= arg2 and arg1P-arg1 <= 0 and arg1-arg1P <= 0 and arg1-arg2 <= -5 and arg1P-arg2 <= -5 and arg1+-1 <= 0 and arg1+1 <= 0 and arg1 <= 0
Errors: