NO
Nontermination proof succeeded
Found this recurrent set for cutpoint 5: arg1 <= 0 and arg1P <= 0 and 2 <= arg2 and 0 <= x12 and 0 <= x13 and 0 <= x7 and 0 <= x8 and arg1-arg2 <= -2 and arg1-x12 <= 0 and arg1+x12 <= 0 and arg1-x13 <= 0 and arg1-x7 <= 0 and arg1-x8 <= 0 and arg1P-arg1 <= 0 and arg1-arg1P <= 0 and arg1P+arg1 <= 0 and arg1P-arg2 <= -2 and arg1P-x12 <= 0 and arg1P+x12 <= 0 and arg1P-x13 <= 0 and arg1P-x7 <= 0 and arg1P-x8 <= 0 and 2 <= arg2+x12 and 2 <= arg2+x13 and 2 <= arg2+x7 and 2 <= arg2+x8 and 0 <= x12+x13 and x14-x13 <= 0 and 0 <= x7+x12 and 0 <= x7+x13 and 0 <= x7+x8 and 0 <= x8+x12 and 0 <= x8+x13 and arg1+1 <= 0
Errors: