YES(?, 15)

Initial complexity problem:
1:	T:
		(1, 1)    evalndloopstart(a) -> evalndloopentryin(a)
		(?, 1)    evalndloopentryin(a) -> evalndloopbbin(0)
		(?, 1)    evalndloopbbin(a) -> evalndloopbbin(b) [ a + 2 >= b /\ b >= a + 1 /\ 9 >= b ]
		(?, 1)    evalndloopbbin(a) -> evalndloopreturnin(a) [ b >= a + 3 ]
		(?, 1)    evalndloopbbin(a) -> evalndloopreturnin(a) [ a >= b ]
		(?, 1)    evalndloopbbin(a) -> evalndloopreturnin(a) [ b >= 10 ]
		(?, 1)    evalndloopreturnin(a) -> evalndloopstop(a)
	start location:	evalndloopstart
	leaf cost:	0

Repeatedly removing leaves of the complexity graph in problem 1 produces the following problem:
2:	T:
		(1, 1)    evalndloopstart(a) -> evalndloopentryin(a)
		(?, 1)    evalndloopentryin(a) -> evalndloopbbin(0)
		(?, 1)    evalndloopbbin(a) -> evalndloopbbin(b) [ a + 2 >= b /\ b >= a + 1 /\ 9 >= b ]
	start location:	evalndloopstart
	leaf cost:	4

Repeatedly propagating knowledge in problem 2 produces the following problem:
3:	T:
		(1, 1)    evalndloopstart(a) -> evalndloopentryin(a)
		(1, 1)    evalndloopentryin(a) -> evalndloopbbin(0)
		(?, 1)    evalndloopbbin(a) -> evalndloopbbin(b) [ a + 2 >= b /\ b >= a + 1 /\ 9 >= b ]
	start location:	evalndloopstart
	leaf cost:	4

A polynomial rank function with
	Pol(evalndloopstart) = 9
	Pol(evalndloopentryin) = 9
	Pol(evalndloopbbin) = -V_1 + 9
orients all transitions weakly and the transition
	evalndloopbbin(a) -> evalndloopbbin(b) [ a + 2 >= b /\ b >= a + 1 /\ 9 >= b ]
strictly and produces the following problem:
4:	T:
		(1, 1)    evalndloopstart(a) -> evalndloopentryin(a)
		(1, 1)    evalndloopentryin(a) -> evalndloopbbin(0)
		(9, 1)    evalndloopbbin(a) -> evalndloopbbin(b) [ a + 2 >= b /\ b >= a + 1 /\ 9 >= b ]
	start location:	evalndloopstart
	leaf cost:	4

Complexity upper bound 15

Time: 0.071 sec (SMT: 0.068 sec)