YES(?, 18*a + 24*a*b + 8*b + 10)

Initial complexity problem:
1:	T:
		(1, 1)    evalfstart(a, b, c) -> evalfentryin(a, b, c)
		(?, 1)    evalfentryin(a, b, c) -> evalfbb4in(b, a, c)
		(?, 1)    evalfbb4in(a, b, c) -> evalfbb2in(a, b, a) [ b >= 1 ]
		(?, 1)    evalfbb4in(a, b, c) -> evalfreturnin(a, b, c) [ 0 >= b ]
		(?, 1)    evalfbb2in(a, b, c) -> evalfbb1in(a, b, c) [ c >= a ]
		(?, 1)    evalfbb2in(a, b, c) -> evalfbb3in(a, b, c) [ a >= c + 1 ]
		(?, 1)    evalfbb1in(a, b, c) -> evalfbb2in(a, b, c - 1)
		(?, 1)    evalfbb3in(a, b, c) -> evalfbb4in(a, b - 1, c)
		(?, 1)    evalfreturnin(a, b, c) -> evalfstop(a, b, c)
	start location:	evalfstart
	leaf cost:	0

Repeatedly removing leaves of the complexity graph in problem 1 produces the following problem:
2:	T:
		(1, 1)    evalfstart(a, b, c) -> evalfentryin(a, b, c)
		(?, 1)    evalfentryin(a, b, c) -> evalfbb4in(b, a, c)
		(?, 1)    evalfbb4in(a, b, c) -> evalfbb2in(a, b, a) [ b >= 1 ]
		(?, 1)    evalfbb2in(a, b, c) -> evalfbb1in(a, b, c) [ c >= a ]
		(?, 1)    evalfbb2in(a, b, c) -> evalfbb3in(a, b, c) [ a >= c + 1 ]
		(?, 1)    evalfbb1in(a, b, c) -> evalfbb2in(a, b, c - 1)
		(?, 1)    evalfbb3in(a, b, c) -> evalfbb4in(a, b - 1, c)
	start location:	evalfstart
	leaf cost:	2

Repeatedly propagating knowledge in problem 2 produces the following problem:
3:	T:
		(1, 1)    evalfstart(a, b, c) -> evalfentryin(a, b, c)
		(1, 1)    evalfentryin(a, b, c) -> evalfbb4in(b, a, c)
		(?, 1)    evalfbb4in(a, b, c) -> evalfbb2in(a, b, a) [ b >= 1 ]
		(?, 1)    evalfbb2in(a, b, c) -> evalfbb1in(a, b, c) [ c >= a ]
		(?, 1)    evalfbb2in(a, b, c) -> evalfbb3in(a, b, c) [ a >= c + 1 ]
		(?, 1)    evalfbb1in(a, b, c) -> evalfbb2in(a, b, c - 1)
		(?, 1)    evalfbb3in(a, b, c) -> evalfbb4in(a, b - 1, c)
	start location:	evalfstart
	leaf cost:	2

A polynomial rank function with
	Pol(evalfstart) = 3*V_1 + 1
	Pol(evalfentryin) = 3*V_1 + 1
	Pol(evalfbb4in) = 3*V_2 + 1
	Pol(evalfbb2in) = 3*V_2
	Pol(evalfbb1in) = 3*V_2
	Pol(evalfbb3in) = 3*V_2 - 1
orients all transitions weakly and the transition
	evalfbb4in(a, b, c) -> evalfbb2in(a, b, a) [ b >= 1 ]
strictly and produces the following problem:
4:	T:
		(1, 1)          evalfstart(a, b, c) -> evalfentryin(a, b, c)
		(1, 1)          evalfentryin(a, b, c) -> evalfbb4in(b, a, c)
		(3*a + 1, 1)    evalfbb4in(a, b, c) -> evalfbb2in(a, b, a) [ b >= 1 ]
		(?, 1)          evalfbb2in(a, b, c) -> evalfbb1in(a, b, c) [ c >= a ]
		(?, 1)          evalfbb2in(a, b, c) -> evalfbb3in(a, b, c) [ a >= c + 1 ]
		(?, 1)          evalfbb1in(a, b, c) -> evalfbb2in(a, b, c - 1)
		(?, 1)          evalfbb3in(a, b, c) -> evalfbb4in(a, b - 1, c)
	start location:	evalfstart
	leaf cost:	2

A polynomial rank function with
	Pol(evalfbb3in) = 1
	Pol(evalfbb4in) = 0
	Pol(evalfbb2in) = 2
	Pol(evalfbb1in) = 2
and size complexities
	S("evalfbb3in(a, b, c) -> evalfbb4in(a, b - 1, c)", 0-0) = b
	S("evalfbb3in(a, b, c) -> evalfbb4in(a, b - 1, c)", 0-1) = ?
	S("evalfbb3in(a, b, c) -> evalfbb4in(a, b - 1, c)", 0-2) = ?
	S("evalfbb1in(a, b, c) -> evalfbb2in(a, b, c - 1)", 0-0) = b
	S("evalfbb1in(a, b, c) -> evalfbb2in(a, b, c - 1)", 0-1) = ?
	S("evalfbb1in(a, b, c) -> evalfbb2in(a, b, c - 1)", 0-2) = ?
	S("evalfbb2in(a, b, c) -> evalfbb3in(a, b, c) [ a >= c + 1 ]", 0-0) = b
	S("evalfbb2in(a, b, c) -> evalfbb3in(a, b, c) [ a >= c + 1 ]", 0-1) = ?
	S("evalfbb2in(a, b, c) -> evalfbb3in(a, b, c) [ a >= c + 1 ]", 0-2) = ?
	S("evalfbb2in(a, b, c) -> evalfbb1in(a, b, c) [ c >= a ]", 0-0) = b
	S("evalfbb2in(a, b, c) -> evalfbb1in(a, b, c) [ c >= a ]", 0-1) = ?
	S("evalfbb2in(a, b, c) -> evalfbb1in(a, b, c) [ c >= a ]", 0-2) = ?
	S("evalfbb4in(a, b, c) -> evalfbb2in(a, b, a) [ b >= 1 ]", 0-0) = b
	S("evalfbb4in(a, b, c) -> evalfbb2in(a, b, a) [ b >= 1 ]", 0-1) = ?
	S("evalfbb4in(a, b, c) -> evalfbb2in(a, b, a) [ b >= 1 ]", 0-2) = b
	S("evalfentryin(a, b, c) -> evalfbb4in(b, a, c)", 0-0) = b
	S("evalfentryin(a, b, c) -> evalfbb4in(b, a, c)", 0-1) = a
	S("evalfentryin(a, b, c) -> evalfbb4in(b, a, c)", 0-2) = c
	S("evalfstart(a, b, c) -> evalfentryin(a, b, c)", 0-0) = a
	S("evalfstart(a, b, c) -> evalfentryin(a, b, c)", 0-1) = b
	S("evalfstart(a, b, c) -> evalfentryin(a, b, c)", 0-2) = c
orients the transitions
	evalfbb3in(a, b, c) -> evalfbb4in(a, b - 1, c)
	evalfbb2in(a, b, c) -> evalfbb3in(a, b, c) [ a >= c + 1 ]
	evalfbb2in(a, b, c) -> evalfbb1in(a, b, c) [ c >= a ]
	evalfbb1in(a, b, c) -> evalfbb2in(a, b, c - 1)
weakly and the transition
	evalfbb3in(a, b, c) -> evalfbb4in(a, b - 1, c)
strictly and produces the following problem:
5:	T:
		(1, 1)          evalfstart(a, b, c) -> evalfentryin(a, b, c)
		(1, 1)          evalfentryin(a, b, c) -> evalfbb4in(b, a, c)
		(3*a + 1, 1)    evalfbb4in(a, b, c) -> evalfbb2in(a, b, a) [ b >= 1 ]
		(?, 1)          evalfbb2in(a, b, c) -> evalfbb1in(a, b, c) [ c >= a ]
		(?, 1)          evalfbb2in(a, b, c) -> evalfbb3in(a, b, c) [ a >= c + 1 ]
		(?, 1)          evalfbb1in(a, b, c) -> evalfbb2in(a, b, c - 1)
		(6*a + 2, 1)    evalfbb3in(a, b, c) -> evalfbb4in(a, b - 1, c)
	start location:	evalfstart
	leaf cost:	2

A polynomial rank function with
	Pol(evalfbb2in) = 1
	Pol(evalfbb3in) = 0
	Pol(evalfbb1in) = 1
and size complexities
	S("evalfbb3in(a, b, c) -> evalfbb4in(a, b - 1, c)", 0-0) = b
	S("evalfbb3in(a, b, c) -> evalfbb4in(a, b - 1, c)", 0-1) = 7*a + 98
	S("evalfbb3in(a, b, c) -> evalfbb4in(a, b - 1, c)", 0-2) = ?
	S("evalfbb1in(a, b, c) -> evalfbb2in(a, b, c - 1)", 0-0) = b
	S("evalfbb1in(a, b, c) -> evalfbb2in(a, b, c - 1)", 0-1) = 7*a + 98
	S("evalfbb1in(a, b, c) -> evalfbb2in(a, b, c - 1)", 0-2) = ?
	S("evalfbb2in(a, b, c) -> evalfbb3in(a, b, c) [ a >= c + 1 ]", 0-0) = b
	S("evalfbb2in(a, b, c) -> evalfbb3in(a, b, c) [ a >= c + 1 ]", 0-1) = 7*a + 98
	S("evalfbb2in(a, b, c) -> evalfbb3in(a, b, c) [ a >= c + 1 ]", 0-2) = ?
	S("evalfbb2in(a, b, c) -> evalfbb1in(a, b, c) [ c >= a ]", 0-0) = b
	S("evalfbb2in(a, b, c) -> evalfbb1in(a, b, c) [ c >= a ]", 0-1) = 7*a + 98
	S("evalfbb2in(a, b, c) -> evalfbb1in(a, b, c) [ c >= a ]", 0-2) = ?
	S("evalfbb4in(a, b, c) -> evalfbb2in(a, b, a) [ b >= 1 ]", 0-0) = b
	S("evalfbb4in(a, b, c) -> evalfbb2in(a, b, a) [ b >= 1 ]", 0-1) = 7*a + 98
	S("evalfbb4in(a, b, c) -> evalfbb2in(a, b, a) [ b >= 1 ]", 0-2) = b
	S("evalfentryin(a, b, c) -> evalfbb4in(b, a, c)", 0-0) = b
	S("evalfentryin(a, b, c) -> evalfbb4in(b, a, c)", 0-1) = a
	S("evalfentryin(a, b, c) -> evalfbb4in(b, a, c)", 0-2) = c
	S("evalfstart(a, b, c) -> evalfentryin(a, b, c)", 0-0) = a
	S("evalfstart(a, b, c) -> evalfentryin(a, b, c)", 0-1) = b
	S("evalfstart(a, b, c) -> evalfentryin(a, b, c)", 0-2) = c
orients the transitions
	evalfbb2in(a, b, c) -> evalfbb3in(a, b, c) [ a >= c + 1 ]
	evalfbb2in(a, b, c) -> evalfbb1in(a, b, c) [ c >= a ]
	evalfbb1in(a, b, c) -> evalfbb2in(a, b, c - 1)
weakly and the transition
	evalfbb2in(a, b, c) -> evalfbb3in(a, b, c) [ a >= c + 1 ]
strictly and produces the following problem:
6:	T:
		(1, 1)          evalfstart(a, b, c) -> evalfentryin(a, b, c)
		(1, 1)          evalfentryin(a, b, c) -> evalfbb4in(b, a, c)
		(3*a + 1, 1)    evalfbb4in(a, b, c) -> evalfbb2in(a, b, a) [ b >= 1 ]
		(?, 1)          evalfbb2in(a, b, c) -> evalfbb1in(a, b, c) [ c >= a ]
		(3*a + 1, 1)    evalfbb2in(a, b, c) -> evalfbb3in(a, b, c) [ a >= c + 1 ]
		(?, 1)          evalfbb1in(a, b, c) -> evalfbb2in(a, b, c - 1)
		(6*a + 2, 1)    evalfbb3in(a, b, c) -> evalfbb4in(a, b - 1, c)
	start location:	evalfstart
	leaf cost:	2

A polynomial rank function with
	Pol(evalfbb2in) = -2*V_1 + 2*V_3 + 1
	Pol(evalfbb1in) = -2*V_1 + 2*V_3
and size complexities
	S("evalfbb3in(a, b, c) -> evalfbb4in(a, b - 1, c)", 0-0) = b
	S("evalfbb3in(a, b, c) -> evalfbb4in(a, b - 1, c)", 0-1) = 7*a + 98
	S("evalfbb3in(a, b, c) -> evalfbb4in(a, b - 1, c)", 0-2) = ?
	S("evalfbb1in(a, b, c) -> evalfbb2in(a, b, c - 1)", 0-0) = b
	S("evalfbb1in(a, b, c) -> evalfbb2in(a, b, c - 1)", 0-1) = 7*a + 98
	S("evalfbb1in(a, b, c) -> evalfbb2in(a, b, c - 1)", 0-2) = ?
	S("evalfbb2in(a, b, c) -> evalfbb3in(a, b, c) [ a >= c + 1 ]", 0-0) = b
	S("evalfbb2in(a, b, c) -> evalfbb3in(a, b, c) [ a >= c + 1 ]", 0-1) = 7*a + 98
	S("evalfbb2in(a, b, c) -> evalfbb3in(a, b, c) [ a >= c + 1 ]", 0-2) = ?
	S("evalfbb2in(a, b, c) -> evalfbb1in(a, b, c) [ c >= a ]", 0-0) = b
	S("evalfbb2in(a, b, c) -> evalfbb1in(a, b, c) [ c >= a ]", 0-1) = 7*a + 98
	S("evalfbb2in(a, b, c) -> evalfbb1in(a, b, c) [ c >= a ]", 0-2) = ?
	S("evalfbb4in(a, b, c) -> evalfbb2in(a, b, a) [ b >= 1 ]", 0-0) = b
	S("evalfbb4in(a, b, c) -> evalfbb2in(a, b, a) [ b >= 1 ]", 0-1) = 7*a + 98
	S("evalfbb4in(a, b, c) -> evalfbb2in(a, b, a) [ b >= 1 ]", 0-2) = b
	S("evalfentryin(a, b, c) -> evalfbb4in(b, a, c)", 0-0) = b
	S("evalfentryin(a, b, c) -> evalfbb4in(b, a, c)", 0-1) = a
	S("evalfentryin(a, b, c) -> evalfbb4in(b, a, c)", 0-2) = c
	S("evalfstart(a, b, c) -> evalfentryin(a, b, c)", 0-0) = a
	S("evalfstart(a, b, c) -> evalfentryin(a, b, c)", 0-1) = b
	S("evalfstart(a, b, c) -> evalfentryin(a, b, c)", 0-2) = c
orients the transitions
	evalfbb2in(a, b, c) -> evalfbb1in(a, b, c) [ c >= a ]
	evalfbb1in(a, b, c) -> evalfbb2in(a, b, c - 1)
weakly and the transition
	evalfbb2in(a, b, c) -> evalfbb1in(a, b, c) [ c >= a ]
strictly and produces the following problem:
7:	T:
		(1, 1)                         evalfstart(a, b, c) -> evalfentryin(a, b, c)
		(1, 1)                         evalfentryin(a, b, c) -> evalfbb4in(b, a, c)
		(3*a + 1, 1)                   evalfbb4in(a, b, c) -> evalfbb2in(a, b, a) [ b >= 1 ]
		(12*a*b + 4*b + 3*a + 1, 1)    evalfbb2in(a, b, c) -> evalfbb1in(a, b, c) [ c >= a ]
		(3*a + 1, 1)                   evalfbb2in(a, b, c) -> evalfbb3in(a, b, c) [ a >= c + 1 ]
		(?, 1)                         evalfbb1in(a, b, c) -> evalfbb2in(a, b, c - 1)
		(6*a + 2, 1)                   evalfbb3in(a, b, c) -> evalfbb4in(a, b - 1, c)
	start location:	evalfstart
	leaf cost:	2

Repeatedly propagating knowledge in problem 7 produces the following problem:
8:	T:
		(1, 1)                         evalfstart(a, b, c) -> evalfentryin(a, b, c)
		(1, 1)                         evalfentryin(a, b, c) -> evalfbb4in(b, a, c)
		(3*a + 1, 1)                   evalfbb4in(a, b, c) -> evalfbb2in(a, b, a) [ b >= 1 ]
		(12*a*b + 4*b + 3*a + 1, 1)    evalfbb2in(a, b, c) -> evalfbb1in(a, b, c) [ c >= a ]
		(3*a + 1, 1)                   evalfbb2in(a, b, c) -> evalfbb3in(a, b, c) [ a >= c + 1 ]
		(12*a*b + 4*b + 3*a + 1, 1)    evalfbb1in(a, b, c) -> evalfbb2in(a, b, c - 1)
		(6*a + 2, 1)                   evalfbb3in(a, b, c) -> evalfbb4in(a, b - 1, c)
	start location:	evalfstart
	leaf cost:	2

Complexity upper bound 18*a + 24*a*b + 8*b + 10

Time: 0.189 sec (SMT: 0.176 sec)