MAYBE

Initial complexity problem:
1:	T:
		(Comp: ?, Cost: 1)    f5(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f7(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5)) [ 0 >= Ar_0 ]
		(Comp: ?, Cost: 1)    f5(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f7(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5)) [ Ar_0 >= 2 ]
		(Comp: ?, Cost: 1)    f7(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f9(Ar_0, 0, Ar_2, Ar_3, Ar_4, Ar_5)) [ Ar_1 = 0 ]
		(Comp: ?, Cost: 1)    f16(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f5(Ar_0, Ar_1, Ar_2, Fresh_2, Ar_4, Ar_5)) [ 255 >= Ar_2 ]
		(Comp: ?, Cost: 1)    f25(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f5(Ar_0, Ar_1, Ar_2, Fresh_1, Ar_4, Ar_5)) [ Ar_2 >= 0 ]
		(Comp: ?, Cost: 1)    f0(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f5(4, 0, Ar_2, Fresh_0, 0, Ar_5))
		(Comp: ?, Cost: 1)    f7(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f9(Ar_0 - 1, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5)) [ 0 >= Ar_1 + 1 ]
		(Comp: ?, Cost: 1)    f7(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f9(Ar_0 - 1, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5)) [ Ar_1 >= 1 ]
		(Comp: ?, Cost: 1)    f9(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f16(Ar_0, Ar_1, Ar_2 + Ar_0, Ar_3, 2, Ar_5)) [ 0 >= Ar_4 /\ Ar_3 >= Ar_5 + 1 ]
		(Comp: ?, Cost: 1)    f9(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f16(Ar_0, Ar_1, Ar_2 + Ar_0, Ar_3, 2, Ar_5)) [ Ar_4 >= 2 /\ Ar_3 >= Ar_5 + 1 ]
		(Comp: ?, Cost: 1)    f9(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f16(Ar_0, Ar_1, Ar_2 + Ar_0, Ar_3, 2, Ar_5)) [ 0 >= Ar_1 + 1 /\ Ar_3 >= Ar_5 + 1 /\ Ar_4 = 1 ]
		(Comp: ?, Cost: 1)    f9(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f16(Ar_0, Ar_1, Ar_2 + Ar_0, Ar_3, 2, Ar_5)) [ Ar_1 >= 1 /\ Ar_3 >= Ar_5 + 1 /\ Ar_4 = 1 ]
		(Comp: ?, Cost: 1)    f9(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f16(Ar_0 - 1, 1, Ar_2 + Ar_0 - 1, Ar_3, 2, Ar_5)) [ Ar_3 >= Ar_5 + 1 /\ Ar_1 = 0 /\ Ar_4 = 1 ]
		(Comp: ?, Cost: 1)    f9(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f25(Ar_0, Ar_1, Ar_2 - Ar_0, Ar_3, 1, Ar_5)) [ 1 >= Ar_4 /\ Ar_5 >= Ar_3 + 1 ]
		(Comp: ?, Cost: 1)    f9(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f25(Ar_0, Ar_1, Ar_2 - Ar_0, Ar_3, 1, Ar_5)) [ Ar_4 >= 3 /\ Ar_5 >= Ar_3 + 1 ]
		(Comp: ?, Cost: 1)    f9(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f25(Ar_0, Ar_1, Ar_2 - Ar_0, Ar_3, 1, Ar_5)) [ 0 >= Ar_1 + 1 /\ Ar_5 >= Ar_3 + 1 /\ Ar_4 = 2 ]
		(Comp: ?, Cost: 1)    f9(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f25(Ar_0, Ar_1, Ar_2 - Ar_0, Ar_3, 1, Ar_5)) [ Ar_1 >= 1 /\ Ar_5 >= Ar_3 + 1 /\ Ar_4 = 2 ]
		(Comp: ?, Cost: 1)    f9(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f25(Ar_0 - 1, 1, Ar_2 - Ar_0 + 1, Ar_3, 1, Ar_5)) [ Ar_5 >= Ar_3 + 1 /\ Ar_1 = 0 /\ Ar_4 = 2 ]
		(Comp: ?, Cost: 1)    f5(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f30(1, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5)) [ Ar_0 = 1 ]
		(Comp: ?, Cost: 1)    f16(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f30(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5)) [ Ar_2 >= 256 ]
		(Comp: ?, Cost: 1)    f25(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f30(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5)) [ 0 >= Ar_2 + 1 ]
		(Comp: ?, Cost: 1)    f9(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f30(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_3)) [ Ar_3 = Ar_5 ]
		(Comp: 1, Cost: 0)    koat_start(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f0(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5)) [ 0 <= 0 ]
	start location:	koat_start
	leaf cost:	0

Repeatedly propagating knowledge in problem 1 produces the following problem:
2:	T:
		(Comp: ?, Cost: 1)    f5(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f7(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5)) [ 0 >= Ar_0 ]
		(Comp: ?, Cost: 1)    f5(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f7(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5)) [ Ar_0 >= 2 ]
		(Comp: ?, Cost: 1)    f7(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f9(Ar_0, 0, Ar_2, Ar_3, Ar_4, Ar_5)) [ Ar_1 = 0 ]
		(Comp: ?, Cost: 1)    f16(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f5(Ar_0, Ar_1, Ar_2, Fresh_2, Ar_4, Ar_5)) [ 255 >= Ar_2 ]
		(Comp: ?, Cost: 1)    f25(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f5(Ar_0, Ar_1, Ar_2, Fresh_1, Ar_4, Ar_5)) [ Ar_2 >= 0 ]
		(Comp: 1, Cost: 1)    f0(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f5(4, 0, Ar_2, Fresh_0, 0, Ar_5))
		(Comp: ?, Cost: 1)    f7(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f9(Ar_0 - 1, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5)) [ 0 >= Ar_1 + 1 ]
		(Comp: ?, Cost: 1)    f7(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f9(Ar_0 - 1, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5)) [ Ar_1 >= 1 ]
		(Comp: ?, Cost: 1)    f9(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f16(Ar_0, Ar_1, Ar_2 + Ar_0, Ar_3, 2, Ar_5)) [ 0 >= Ar_4 /\ Ar_3 >= Ar_5 + 1 ]
		(Comp: ?, Cost: 1)    f9(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f16(Ar_0, Ar_1, Ar_2 + Ar_0, Ar_3, 2, Ar_5)) [ Ar_4 >= 2 /\ Ar_3 >= Ar_5 + 1 ]
		(Comp: ?, Cost: 1)    f9(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f16(Ar_0, Ar_1, Ar_2 + Ar_0, Ar_3, 2, Ar_5)) [ 0 >= Ar_1 + 1 /\ Ar_3 >= Ar_5 + 1 /\ Ar_4 = 1 ]
		(Comp: ?, Cost: 1)    f9(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f16(Ar_0, Ar_1, Ar_2 + Ar_0, Ar_3, 2, Ar_5)) [ Ar_1 >= 1 /\ Ar_3 >= Ar_5 + 1 /\ Ar_4 = 1 ]
		(Comp: ?, Cost: 1)    f9(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f16(Ar_0 - 1, 1, Ar_2 + Ar_0 - 1, Ar_3, 2, Ar_5)) [ Ar_3 >= Ar_5 + 1 /\ Ar_1 = 0 /\ Ar_4 = 1 ]
		(Comp: ?, Cost: 1)    f9(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f25(Ar_0, Ar_1, Ar_2 - Ar_0, Ar_3, 1, Ar_5)) [ 1 >= Ar_4 /\ Ar_5 >= Ar_3 + 1 ]
		(Comp: ?, Cost: 1)    f9(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f25(Ar_0, Ar_1, Ar_2 - Ar_0, Ar_3, 1, Ar_5)) [ Ar_4 >= 3 /\ Ar_5 >= Ar_3 + 1 ]
		(Comp: ?, Cost: 1)    f9(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f25(Ar_0, Ar_1, Ar_2 - Ar_0, Ar_3, 1, Ar_5)) [ 0 >= Ar_1 + 1 /\ Ar_5 >= Ar_3 + 1 /\ Ar_4 = 2 ]
		(Comp: ?, Cost: 1)    f9(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f25(Ar_0, Ar_1, Ar_2 - Ar_0, Ar_3, 1, Ar_5)) [ Ar_1 >= 1 /\ Ar_5 >= Ar_3 + 1 /\ Ar_4 = 2 ]
		(Comp: ?, Cost: 1)    f9(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f25(Ar_0 - 1, 1, Ar_2 - Ar_0 + 1, Ar_3, 1, Ar_5)) [ Ar_5 >= Ar_3 + 1 /\ Ar_1 = 0 /\ Ar_4 = 2 ]
		(Comp: ?, Cost: 1)    f5(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f30(1, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5)) [ Ar_0 = 1 ]
		(Comp: ?, Cost: 1)    f16(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f30(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5)) [ Ar_2 >= 256 ]
		(Comp: ?, Cost: 1)    f25(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f30(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5)) [ 0 >= Ar_2 + 1 ]
		(Comp: ?, Cost: 1)    f9(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f30(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_3)) [ Ar_3 = Ar_5 ]
		(Comp: 1, Cost: 0)    koat_start(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f0(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5)) [ 0 <= 0 ]
	start location:	koat_start
	leaf cost:	0

A polynomial rank function with
	Pol(f5) = 1
	Pol(f7) = 1
	Pol(f9) = 1
	Pol(f16) = 1
	Pol(f25) = 1
	Pol(f0) = 1
	Pol(f30) = 0
	Pol(koat_start) = 1
orients all transitions weakly and the transitions
	f9(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f30(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_3)) [ Ar_3 = Ar_5 ]
	f5(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f30(1, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5)) [ Ar_0 = 1 ]
	f25(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f30(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5)) [ 0 >= Ar_2 + 1 ]
	f16(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f30(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5)) [ Ar_2 >= 256 ]
strictly and produces the following problem:
3:	T:
		(Comp: ?, Cost: 1)    f5(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f7(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5)) [ 0 >= Ar_0 ]
		(Comp: ?, Cost: 1)    f5(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f7(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5)) [ Ar_0 >= 2 ]
		(Comp: ?, Cost: 1)    f7(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f9(Ar_0, 0, Ar_2, Ar_3, Ar_4, Ar_5)) [ Ar_1 = 0 ]
		(Comp: ?, Cost: 1)    f16(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f5(Ar_0, Ar_1, Ar_2, Fresh_2, Ar_4, Ar_5)) [ 255 >= Ar_2 ]
		(Comp: ?, Cost: 1)    f25(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f5(Ar_0, Ar_1, Ar_2, Fresh_1, Ar_4, Ar_5)) [ Ar_2 >= 0 ]
		(Comp: 1, Cost: 1)    f0(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f5(4, 0, Ar_2, Fresh_0, 0, Ar_5))
		(Comp: ?, Cost: 1)    f7(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f9(Ar_0 - 1, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5)) [ 0 >= Ar_1 + 1 ]
		(Comp: ?, Cost: 1)    f7(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f9(Ar_0 - 1, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5)) [ Ar_1 >= 1 ]
		(Comp: ?, Cost: 1)    f9(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f16(Ar_0, Ar_1, Ar_2 + Ar_0, Ar_3, 2, Ar_5)) [ 0 >= Ar_4 /\ Ar_3 >= Ar_5 + 1 ]
		(Comp: ?, Cost: 1)    f9(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f16(Ar_0, Ar_1, Ar_2 + Ar_0, Ar_3, 2, Ar_5)) [ Ar_4 >= 2 /\ Ar_3 >= Ar_5 + 1 ]
		(Comp: ?, Cost: 1)    f9(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f16(Ar_0, Ar_1, Ar_2 + Ar_0, Ar_3, 2, Ar_5)) [ 0 >= Ar_1 + 1 /\ Ar_3 >= Ar_5 + 1 /\ Ar_4 = 1 ]
		(Comp: ?, Cost: 1)    f9(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f16(Ar_0, Ar_1, Ar_2 + Ar_0, Ar_3, 2, Ar_5)) [ Ar_1 >= 1 /\ Ar_3 >= Ar_5 + 1 /\ Ar_4 = 1 ]
		(Comp: ?, Cost: 1)    f9(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f16(Ar_0 - 1, 1, Ar_2 + Ar_0 - 1, Ar_3, 2, Ar_5)) [ Ar_3 >= Ar_5 + 1 /\ Ar_1 = 0 /\ Ar_4 = 1 ]
		(Comp: ?, Cost: 1)    f9(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f25(Ar_0, Ar_1, Ar_2 - Ar_0, Ar_3, 1, Ar_5)) [ 1 >= Ar_4 /\ Ar_5 >= Ar_3 + 1 ]
		(Comp: ?, Cost: 1)    f9(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f25(Ar_0, Ar_1, Ar_2 - Ar_0, Ar_3, 1, Ar_5)) [ Ar_4 >= 3 /\ Ar_5 >= Ar_3 + 1 ]
		(Comp: ?, Cost: 1)    f9(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f25(Ar_0, Ar_1, Ar_2 - Ar_0, Ar_3, 1, Ar_5)) [ 0 >= Ar_1 + 1 /\ Ar_5 >= Ar_3 + 1 /\ Ar_4 = 2 ]
		(Comp: ?, Cost: 1)    f9(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f25(Ar_0, Ar_1, Ar_2 - Ar_0, Ar_3, 1, Ar_5)) [ Ar_1 >= 1 /\ Ar_5 >= Ar_3 + 1 /\ Ar_4 = 2 ]
		(Comp: ?, Cost: 1)    f9(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f25(Ar_0 - 1, 1, Ar_2 - Ar_0 + 1, Ar_3, 1, Ar_5)) [ Ar_5 >= Ar_3 + 1 /\ Ar_1 = 0 /\ Ar_4 = 2 ]
		(Comp: 1, Cost: 1)    f5(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f30(1, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5)) [ Ar_0 = 1 ]
		(Comp: 1, Cost: 1)    f16(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f30(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5)) [ Ar_2 >= 256 ]
		(Comp: 1, Cost: 1)    f25(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f30(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5)) [ 0 >= Ar_2 + 1 ]
		(Comp: 1, Cost: 1)    f9(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f30(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_3)) [ Ar_3 = Ar_5 ]
		(Comp: 1, Cost: 0)    koat_start(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f0(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5)) [ 0 <= 0 ]
	start location:	koat_start
	leaf cost:	0

A polynomial rank function with
	Pol(f5) = -4*V_2 + 1
	Pol(f7) = -4*V_2 + 1
	Pol(f9) = -4*V_2 + 1
	Pol(f16) = -4*V_2 + 1
	Pol(f25) = -4*V_2 + 1
	Pol(f0) = 1
	Pol(f30) = -4*V_2 + 1
	Pol(koat_start) = 1
orients all transitions weakly and the transitions
	f9(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f25(Ar_0 - 1, 1, Ar_2 - Ar_0 + 1, Ar_3, 1, Ar_5)) [ Ar_5 >= Ar_3 + 1 /\ Ar_1 = 0 /\ Ar_4 = 2 ]
	f9(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f16(Ar_0 - 1, 1, Ar_2 + Ar_0 - 1, Ar_3, 2, Ar_5)) [ Ar_3 >= Ar_5 + 1 /\ Ar_1 = 0 /\ Ar_4 = 1 ]
strictly and produces the following problem:
4:	T:
		(Comp: ?, Cost: 1)    f5(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f7(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5)) [ 0 >= Ar_0 ]
		(Comp: ?, Cost: 1)    f5(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f7(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5)) [ Ar_0 >= 2 ]
		(Comp: ?, Cost: 1)    f7(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f9(Ar_0, 0, Ar_2, Ar_3, Ar_4, Ar_5)) [ Ar_1 = 0 ]
		(Comp: ?, Cost: 1)    f16(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f5(Ar_0, Ar_1, Ar_2, Fresh_2, Ar_4, Ar_5)) [ 255 >= Ar_2 ]
		(Comp: ?, Cost: 1)    f25(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f5(Ar_0, Ar_1, Ar_2, Fresh_1, Ar_4, Ar_5)) [ Ar_2 >= 0 ]
		(Comp: 1, Cost: 1)    f0(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f5(4, 0, Ar_2, Fresh_0, 0, Ar_5))
		(Comp: ?, Cost: 1)    f7(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f9(Ar_0 - 1, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5)) [ 0 >= Ar_1 + 1 ]
		(Comp: ?, Cost: 1)    f7(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f9(Ar_0 - 1, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5)) [ Ar_1 >= 1 ]
		(Comp: ?, Cost: 1)    f9(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f16(Ar_0, Ar_1, Ar_2 + Ar_0, Ar_3, 2, Ar_5)) [ 0 >= Ar_4 /\ Ar_3 >= Ar_5 + 1 ]
		(Comp: ?, Cost: 1)    f9(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f16(Ar_0, Ar_1, Ar_2 + Ar_0, Ar_3, 2, Ar_5)) [ Ar_4 >= 2 /\ Ar_3 >= Ar_5 + 1 ]
		(Comp: ?, Cost: 1)    f9(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f16(Ar_0, Ar_1, Ar_2 + Ar_0, Ar_3, 2, Ar_5)) [ 0 >= Ar_1 + 1 /\ Ar_3 >= Ar_5 + 1 /\ Ar_4 = 1 ]
		(Comp: ?, Cost: 1)    f9(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f16(Ar_0, Ar_1, Ar_2 + Ar_0, Ar_3, 2, Ar_5)) [ Ar_1 >= 1 /\ Ar_3 >= Ar_5 + 1 /\ Ar_4 = 1 ]
		(Comp: 1, Cost: 1)    f9(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f16(Ar_0 - 1, 1, Ar_2 + Ar_0 - 1, Ar_3, 2, Ar_5)) [ Ar_3 >= Ar_5 + 1 /\ Ar_1 = 0 /\ Ar_4 = 1 ]
		(Comp: ?, Cost: 1)    f9(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f25(Ar_0, Ar_1, Ar_2 - Ar_0, Ar_3, 1, Ar_5)) [ 1 >= Ar_4 /\ Ar_5 >= Ar_3 + 1 ]
		(Comp: ?, Cost: 1)    f9(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f25(Ar_0, Ar_1, Ar_2 - Ar_0, Ar_3, 1, Ar_5)) [ Ar_4 >= 3 /\ Ar_5 >= Ar_3 + 1 ]
		(Comp: ?, Cost: 1)    f9(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f25(Ar_0, Ar_1, Ar_2 - Ar_0, Ar_3, 1, Ar_5)) [ 0 >= Ar_1 + 1 /\ Ar_5 >= Ar_3 + 1 /\ Ar_4 = 2 ]
		(Comp: ?, Cost: 1)    f9(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f25(Ar_0, Ar_1, Ar_2 - Ar_0, Ar_3, 1, Ar_5)) [ Ar_1 >= 1 /\ Ar_5 >= Ar_3 + 1 /\ Ar_4 = 2 ]
		(Comp: 1, Cost: 1)    f9(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f25(Ar_0 - 1, 1, Ar_2 - Ar_0 + 1, Ar_3, 1, Ar_5)) [ Ar_5 >= Ar_3 + 1 /\ Ar_1 = 0 /\ Ar_4 = 2 ]
		(Comp: 1, Cost: 1)    f5(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f30(1, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5)) [ Ar_0 = 1 ]
		(Comp: 1, Cost: 1)    f16(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f30(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5)) [ Ar_2 >= 256 ]
		(Comp: 1, Cost: 1)    f25(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f30(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5)) [ 0 >= Ar_2 + 1 ]
		(Comp: 1, Cost: 1)    f9(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f30(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_3)) [ Ar_3 = Ar_5 ]
		(Comp: 1, Cost: 0)    koat_start(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f0(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5)) [ 0 <= 0 ]
	start location:	koat_start
	leaf cost:	0

Applied AI with 'oct' on problem 4 to obtain the following invariants:
  For symbol f16: X_4 - X_6 - 1 >= 0 /\ -X_5 + 2 >= 0 /\ X_2 - X_5 + 2 >= 0 /\ -X_1 - X_5 + 6 >= 0 /\ X_5 - 2 >= 0 /\ X_2 + X_5 - 2 >= 0 /\ -X_1 + X_5 + 2 >= 0 /\ -X_1 - X_2 + 4 >= 0 /\ X_2 >= 0 /\ -X_1 + X_2 + 4 >= 0 /\ -X_1 + 4 >= 0
  For symbol f25: -X_4 + X_6 - 1 >= 0 /\ -X_5 + 1 >= 0 /\ X_2 - X_5 + 1 >= 0 /\ -X_1 - X_5 + 5 >= 0 /\ X_5 - 1 >= 0 /\ X_2 + X_5 - 1 >= 0 /\ -X_1 + X_5 + 3 >= 0 /\ -X_1 - X_2 + 4 >= 0 /\ X_2 >= 0 /\ -X_1 + X_2 + 4 >= 0 /\ -X_1 + 4 >= 0
  For symbol f5: X_5 >= 0 /\ X_2 + X_5 >= 0 /\ -X_1 + X_5 + 4 >= 0 /\ -X_1 - X_2 + 4 >= 0 /\ X_2 >= 0 /\ -X_1 + X_2 + 4 >= 0 /\ -X_1 + 4 >= 0
  For symbol f7: X_5 >= 0 /\ X_2 + X_5 >= 0 /\ -X_1 + X_5 + 4 >= 0 /\ -X_1 - X_2 + 4 >= 0 /\ X_2 >= 0 /\ -X_1 + X_2 + 4 >= 0 /\ -X_1 + 4 >= 0
  For symbol f9: X_5 >= 0 /\ X_2 + X_5 >= 0 /\ -X_1 + X_5 + 4 >= 0 /\ -X_1 - X_2 + 4 >= 0 /\ X_2 >= 0 /\ -X_1 + X_2 + 4 >= 0 /\ -X_1 + 4 >= 0


This yielded the following problem:
5:	T:
		(Comp: 1, Cost: 0)    koat_start(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f0(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5)) [ 0 <= 0 ]
		(Comp: 1, Cost: 1)    f9(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f30(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_3)) [ Ar_4 >= 0 /\ Ar_1 + Ar_4 >= 0 /\ -Ar_0 + Ar_4 + 4 >= 0 /\ -Ar_0 - Ar_1 + 4 >= 0 /\ Ar_1 >= 0 /\ -Ar_0 + Ar_1 + 4 >= 0 /\ -Ar_0 + 4 >= 0 /\ Ar_3 = Ar_5 ]
		(Comp: 1, Cost: 1)    f25(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f30(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5)) [ -Ar_3 + Ar_5 - 1 >= 0 /\ -Ar_4 + 1 >= 0 /\ Ar_1 - Ar_4 + 1 >= 0 /\ -Ar_0 - Ar_4 + 5 >= 0 /\ Ar_4 - 1 >= 0 /\ Ar_1 + Ar_4 - 1 >= 0 /\ -Ar_0 + Ar_4 + 3 >= 0 /\ -Ar_0 - Ar_1 + 4 >= 0 /\ Ar_1 >= 0 /\ -Ar_0 + Ar_1 + 4 >= 0 /\ -Ar_0 + 4 >= 0 /\ 0 >= Ar_2 + 1 ]
		(Comp: 1, Cost: 1)    f16(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f30(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5)) [ Ar_3 - Ar_5 - 1 >= 0 /\ -Ar_4 + 2 >= 0 /\ Ar_1 - Ar_4 + 2 >= 0 /\ -Ar_0 - Ar_4 + 6 >= 0 /\ Ar_4 - 2 >= 0 /\ Ar_1 + Ar_4 - 2 >= 0 /\ -Ar_0 + Ar_4 + 2 >= 0 /\ -Ar_0 - Ar_1 + 4 >= 0 /\ Ar_1 >= 0 /\ -Ar_0 + Ar_1 + 4 >= 0 /\ -Ar_0 + 4 >= 0 /\ Ar_2 >= 256 ]
		(Comp: 1, Cost: 1)    f5(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f30(1, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5)) [ Ar_4 >= 0 /\ Ar_1 + Ar_4 >= 0 /\ -Ar_0 + Ar_4 + 4 >= 0 /\ -Ar_0 - Ar_1 + 4 >= 0 /\ Ar_1 >= 0 /\ -Ar_0 + Ar_1 + 4 >= 0 /\ -Ar_0 + 4 >= 0 /\ Ar_0 = 1 ]
		(Comp: 1, Cost: 1)    f9(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f25(Ar_0 - 1, 1, Ar_2 - Ar_0 + 1, Ar_3, 1, Ar_5)) [ Ar_4 >= 0 /\ Ar_1 + Ar_4 >= 0 /\ -Ar_0 + Ar_4 + 4 >= 0 /\ -Ar_0 - Ar_1 + 4 >= 0 /\ Ar_1 >= 0 /\ -Ar_0 + Ar_1 + 4 >= 0 /\ -Ar_0 + 4 >= 0 /\ Ar_5 >= Ar_3 + 1 /\ Ar_1 = 0 /\ Ar_4 = 2 ]
		(Comp: ?, Cost: 1)    f9(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f25(Ar_0, Ar_1, Ar_2 - Ar_0, Ar_3, 1, Ar_5)) [ Ar_4 >= 0 /\ Ar_1 + Ar_4 >= 0 /\ -Ar_0 + Ar_4 + 4 >= 0 /\ -Ar_0 - Ar_1 + 4 >= 0 /\ Ar_1 >= 0 /\ -Ar_0 + Ar_1 + 4 >= 0 /\ -Ar_0 + 4 >= 0 /\ Ar_1 >= 1 /\ Ar_5 >= Ar_3 + 1 /\ Ar_4 = 2 ]
		(Comp: ?, Cost: 1)    f9(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f25(Ar_0, Ar_1, Ar_2 - Ar_0, Ar_3, 1, Ar_5)) [ Ar_4 >= 0 /\ Ar_1 + Ar_4 >= 0 /\ -Ar_0 + Ar_4 + 4 >= 0 /\ -Ar_0 - Ar_1 + 4 >= 0 /\ Ar_1 >= 0 /\ -Ar_0 + Ar_1 + 4 >= 0 /\ -Ar_0 + 4 >= 0 /\ 0 >= Ar_1 + 1 /\ Ar_5 >= Ar_3 + 1 /\ Ar_4 = 2 ]
		(Comp: ?, Cost: 1)    f9(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f25(Ar_0, Ar_1, Ar_2 - Ar_0, Ar_3, 1, Ar_5)) [ Ar_4 >= 0 /\ Ar_1 + Ar_4 >= 0 /\ -Ar_0 + Ar_4 + 4 >= 0 /\ -Ar_0 - Ar_1 + 4 >= 0 /\ Ar_1 >= 0 /\ -Ar_0 + Ar_1 + 4 >= 0 /\ -Ar_0 + 4 >= 0 /\ Ar_4 >= 3 /\ Ar_5 >= Ar_3 + 1 ]
		(Comp: ?, Cost: 1)    f9(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f25(Ar_0, Ar_1, Ar_2 - Ar_0, Ar_3, 1, Ar_5)) [ Ar_4 >= 0 /\ Ar_1 + Ar_4 >= 0 /\ -Ar_0 + Ar_4 + 4 >= 0 /\ -Ar_0 - Ar_1 + 4 >= 0 /\ Ar_1 >= 0 /\ -Ar_0 + Ar_1 + 4 >= 0 /\ -Ar_0 + 4 >= 0 /\ 1 >= Ar_4 /\ Ar_5 >= Ar_3 + 1 ]
		(Comp: 1, Cost: 1)    f9(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f16(Ar_0 - 1, 1, Ar_2 + Ar_0 - 1, Ar_3, 2, Ar_5)) [ Ar_4 >= 0 /\ Ar_1 + Ar_4 >= 0 /\ -Ar_0 + Ar_4 + 4 >= 0 /\ -Ar_0 - Ar_1 + 4 >= 0 /\ Ar_1 >= 0 /\ -Ar_0 + Ar_1 + 4 >= 0 /\ -Ar_0 + 4 >= 0 /\ Ar_3 >= Ar_5 + 1 /\ Ar_1 = 0 /\ Ar_4 = 1 ]
		(Comp: ?, Cost: 1)    f9(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f16(Ar_0, Ar_1, Ar_2 + Ar_0, Ar_3, 2, Ar_5)) [ Ar_4 >= 0 /\ Ar_1 + Ar_4 >= 0 /\ -Ar_0 + Ar_4 + 4 >= 0 /\ -Ar_0 - Ar_1 + 4 >= 0 /\ Ar_1 >= 0 /\ -Ar_0 + Ar_1 + 4 >= 0 /\ -Ar_0 + 4 >= 0 /\ Ar_1 >= 1 /\ Ar_3 >= Ar_5 + 1 /\ Ar_4 = 1 ]
		(Comp: ?, Cost: 1)    f9(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f16(Ar_0, Ar_1, Ar_2 + Ar_0, Ar_3, 2, Ar_5)) [ Ar_4 >= 0 /\ Ar_1 + Ar_4 >= 0 /\ -Ar_0 + Ar_4 + 4 >= 0 /\ -Ar_0 - Ar_1 + 4 >= 0 /\ Ar_1 >= 0 /\ -Ar_0 + Ar_1 + 4 >= 0 /\ -Ar_0 + 4 >= 0 /\ 0 >= Ar_1 + 1 /\ Ar_3 >= Ar_5 + 1 /\ Ar_4 = 1 ]
		(Comp: ?, Cost: 1)    f9(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f16(Ar_0, Ar_1, Ar_2 + Ar_0, Ar_3, 2, Ar_5)) [ Ar_4 >= 0 /\ Ar_1 + Ar_4 >= 0 /\ -Ar_0 + Ar_4 + 4 >= 0 /\ -Ar_0 - Ar_1 + 4 >= 0 /\ Ar_1 >= 0 /\ -Ar_0 + Ar_1 + 4 >= 0 /\ -Ar_0 + 4 >= 0 /\ Ar_4 >= 2 /\ Ar_3 >= Ar_5 + 1 ]
		(Comp: ?, Cost: 1)    f9(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f16(Ar_0, Ar_1, Ar_2 + Ar_0, Ar_3, 2, Ar_5)) [ Ar_4 >= 0 /\ Ar_1 + Ar_4 >= 0 /\ -Ar_0 + Ar_4 + 4 >= 0 /\ -Ar_0 - Ar_1 + 4 >= 0 /\ Ar_1 >= 0 /\ -Ar_0 + Ar_1 + 4 >= 0 /\ -Ar_0 + 4 >= 0 /\ 0 >= Ar_4 /\ Ar_3 >= Ar_5 + 1 ]
		(Comp: ?, Cost: 1)    f7(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f9(Ar_0 - 1, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5)) [ Ar_4 >= 0 /\ Ar_1 + Ar_4 >= 0 /\ -Ar_0 + Ar_4 + 4 >= 0 /\ -Ar_0 - Ar_1 + 4 >= 0 /\ Ar_1 >= 0 /\ -Ar_0 + Ar_1 + 4 >= 0 /\ -Ar_0 + 4 >= 0 /\ Ar_1 >= 1 ]
		(Comp: ?, Cost: 1)    f7(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f9(Ar_0 - 1, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5)) [ Ar_4 >= 0 /\ Ar_1 + Ar_4 >= 0 /\ -Ar_0 + Ar_4 + 4 >= 0 /\ -Ar_0 - Ar_1 + 4 >= 0 /\ Ar_1 >= 0 /\ -Ar_0 + Ar_1 + 4 >= 0 /\ -Ar_0 + 4 >= 0 /\ 0 >= Ar_1 + 1 ]
		(Comp: 1, Cost: 1)    f0(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f5(4, 0, Ar_2, Fresh_0, 0, Ar_5))
		(Comp: ?, Cost: 1)    f25(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f5(Ar_0, Ar_1, Ar_2, Fresh_1, Ar_4, Ar_5)) [ -Ar_3 + Ar_5 - 1 >= 0 /\ -Ar_4 + 1 >= 0 /\ Ar_1 - Ar_4 + 1 >= 0 /\ -Ar_0 - Ar_4 + 5 >= 0 /\ Ar_4 - 1 >= 0 /\ Ar_1 + Ar_4 - 1 >= 0 /\ -Ar_0 + Ar_4 + 3 >= 0 /\ -Ar_0 - Ar_1 + 4 >= 0 /\ Ar_1 >= 0 /\ -Ar_0 + Ar_1 + 4 >= 0 /\ -Ar_0 + 4 >= 0 /\ Ar_2 >= 0 ]
		(Comp: ?, Cost: 1)    f16(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f5(Ar_0, Ar_1, Ar_2, Fresh_2, Ar_4, Ar_5)) [ Ar_3 - Ar_5 - 1 >= 0 /\ -Ar_4 + 2 >= 0 /\ Ar_1 - Ar_4 + 2 >= 0 /\ -Ar_0 - Ar_4 + 6 >= 0 /\ Ar_4 - 2 >= 0 /\ Ar_1 + Ar_4 - 2 >= 0 /\ -Ar_0 + Ar_4 + 2 >= 0 /\ -Ar_0 - Ar_1 + 4 >= 0 /\ Ar_1 >= 0 /\ -Ar_0 + Ar_1 + 4 >= 0 /\ -Ar_0 + 4 >= 0 /\ 255 >= Ar_2 ]
		(Comp: ?, Cost: 1)    f7(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f9(Ar_0, 0, Ar_2, Ar_3, Ar_4, Ar_5)) [ Ar_4 >= 0 /\ Ar_1 + Ar_4 >= 0 /\ -Ar_0 + Ar_4 + 4 >= 0 /\ -Ar_0 - Ar_1 + 4 >= 0 /\ Ar_1 >= 0 /\ -Ar_0 + Ar_1 + 4 >= 0 /\ -Ar_0 + 4 >= 0 /\ Ar_1 = 0 ]
		(Comp: ?, Cost: 1)    f5(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f7(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5)) [ Ar_4 >= 0 /\ Ar_1 + Ar_4 >= 0 /\ -Ar_0 + Ar_4 + 4 >= 0 /\ -Ar_0 - Ar_1 + 4 >= 0 /\ Ar_1 >= 0 /\ -Ar_0 + Ar_1 + 4 >= 0 /\ -Ar_0 + 4 >= 0 /\ Ar_0 >= 2 ]
		(Comp: ?, Cost: 1)    f5(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f7(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5)) [ Ar_4 >= 0 /\ Ar_1 + Ar_4 >= 0 /\ -Ar_0 + Ar_4 + 4 >= 0 /\ -Ar_0 - Ar_1 + 4 >= 0 /\ Ar_1 >= 0 /\ -Ar_0 + Ar_1 + 4 >= 0 /\ -Ar_0 + 4 >= 0 /\ 0 >= Ar_0 ]
	start location:	koat_start
	leaf cost:	0

Testing for unsatisfiable constraints removes the following transitions from problem 5:
	f9(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f25(Ar_0, Ar_1, Ar_2 - Ar_0, Ar_3, 1, Ar_5)) [ Ar_4 >= 0 /\ Ar_1 + Ar_4 >= 0 /\ -Ar_0 + Ar_4 + 4 >= 0 /\ -Ar_0 - Ar_1 + 4 >= 0 /\ Ar_1 >= 0 /\ -Ar_0 + Ar_1 + 4 >= 0 /\ -Ar_0 + 4 >= 0 /\ 0 >= Ar_1 + 1 /\ Ar_5 >= Ar_3 + 1 /\ Ar_4 = 2 ]
	f9(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f16(Ar_0, Ar_1, Ar_2 + Ar_0, Ar_3, 2, Ar_5)) [ Ar_4 >= 0 /\ Ar_1 + Ar_4 >= 0 /\ -Ar_0 + Ar_4 + 4 >= 0 /\ -Ar_0 - Ar_1 + 4 >= 0 /\ Ar_1 >= 0 /\ -Ar_0 + Ar_1 + 4 >= 0 /\ -Ar_0 + 4 >= 0 /\ 0 >= Ar_1 + 1 /\ Ar_3 >= Ar_5 + 1 /\ Ar_4 = 1 ]
	f7(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f9(Ar_0 - 1, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5)) [ Ar_4 >= 0 /\ Ar_1 + Ar_4 >= 0 /\ -Ar_0 + Ar_4 + 4 >= 0 /\ -Ar_0 - Ar_1 + 4 >= 0 /\ Ar_1 >= 0 /\ -Ar_0 + Ar_1 + 4 >= 0 /\ -Ar_0 + 4 >= 0 /\ 0 >= Ar_1 + 1 ]
We thus obtain the following problem:
6:	T:
		(Comp: 1, Cost: 0)    koat_start(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f0(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5)) [ 0 <= 0 ]
		(Comp: 1, Cost: 1)    f9(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f30(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_3)) [ Ar_4 >= 0 /\ Ar_1 + Ar_4 >= 0 /\ -Ar_0 + Ar_4 + 4 >= 0 /\ -Ar_0 - Ar_1 + 4 >= 0 /\ Ar_1 >= 0 /\ -Ar_0 + Ar_1 + 4 >= 0 /\ -Ar_0 + 4 >= 0 /\ Ar_3 = Ar_5 ]
		(Comp: 1, Cost: 1)    f25(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f30(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5)) [ -Ar_3 + Ar_5 - 1 >= 0 /\ -Ar_4 + 1 >= 0 /\ Ar_1 - Ar_4 + 1 >= 0 /\ -Ar_0 - Ar_4 + 5 >= 0 /\ Ar_4 - 1 >= 0 /\ Ar_1 + Ar_4 - 1 >= 0 /\ -Ar_0 + Ar_4 + 3 >= 0 /\ -Ar_0 - Ar_1 + 4 >= 0 /\ Ar_1 >= 0 /\ -Ar_0 + Ar_1 + 4 >= 0 /\ -Ar_0 + 4 >= 0 /\ 0 >= Ar_2 + 1 ]
		(Comp: 1, Cost: 1)    f16(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f30(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5)) [ Ar_3 - Ar_5 - 1 >= 0 /\ -Ar_4 + 2 >= 0 /\ Ar_1 - Ar_4 + 2 >= 0 /\ -Ar_0 - Ar_4 + 6 >= 0 /\ Ar_4 - 2 >= 0 /\ Ar_1 + Ar_4 - 2 >= 0 /\ -Ar_0 + Ar_4 + 2 >= 0 /\ -Ar_0 - Ar_1 + 4 >= 0 /\ Ar_1 >= 0 /\ -Ar_0 + Ar_1 + 4 >= 0 /\ -Ar_0 + 4 >= 0 /\ Ar_2 >= 256 ]
		(Comp: 1, Cost: 1)    f5(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f30(1, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5)) [ Ar_4 >= 0 /\ Ar_1 + Ar_4 >= 0 /\ -Ar_0 + Ar_4 + 4 >= 0 /\ -Ar_0 - Ar_1 + 4 >= 0 /\ Ar_1 >= 0 /\ -Ar_0 + Ar_1 + 4 >= 0 /\ -Ar_0 + 4 >= 0 /\ Ar_0 = 1 ]
		(Comp: 1, Cost: 1)    f9(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f25(Ar_0 - 1, 1, Ar_2 - Ar_0 + 1, Ar_3, 1, Ar_5)) [ Ar_4 >= 0 /\ Ar_1 + Ar_4 >= 0 /\ -Ar_0 + Ar_4 + 4 >= 0 /\ -Ar_0 - Ar_1 + 4 >= 0 /\ Ar_1 >= 0 /\ -Ar_0 + Ar_1 + 4 >= 0 /\ -Ar_0 + 4 >= 0 /\ Ar_5 >= Ar_3 + 1 /\ Ar_1 = 0 /\ Ar_4 = 2 ]
		(Comp: ?, Cost: 1)    f9(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f25(Ar_0, Ar_1, Ar_2 - Ar_0, Ar_3, 1, Ar_5)) [ Ar_4 >= 0 /\ Ar_1 + Ar_4 >= 0 /\ -Ar_0 + Ar_4 + 4 >= 0 /\ -Ar_0 - Ar_1 + 4 >= 0 /\ Ar_1 >= 0 /\ -Ar_0 + Ar_1 + 4 >= 0 /\ -Ar_0 + 4 >= 0 /\ Ar_1 >= 1 /\ Ar_5 >= Ar_3 + 1 /\ Ar_4 = 2 ]
		(Comp: ?, Cost: 1)    f9(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f25(Ar_0, Ar_1, Ar_2 - Ar_0, Ar_3, 1, Ar_5)) [ Ar_4 >= 0 /\ Ar_1 + Ar_4 >= 0 /\ -Ar_0 + Ar_4 + 4 >= 0 /\ -Ar_0 - Ar_1 + 4 >= 0 /\ Ar_1 >= 0 /\ -Ar_0 + Ar_1 + 4 >= 0 /\ -Ar_0 + 4 >= 0 /\ Ar_4 >= 3 /\ Ar_5 >= Ar_3 + 1 ]
		(Comp: ?, Cost: 1)    f9(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f25(Ar_0, Ar_1, Ar_2 - Ar_0, Ar_3, 1, Ar_5)) [ Ar_4 >= 0 /\ Ar_1 + Ar_4 >= 0 /\ -Ar_0 + Ar_4 + 4 >= 0 /\ -Ar_0 - Ar_1 + 4 >= 0 /\ Ar_1 >= 0 /\ -Ar_0 + Ar_1 + 4 >= 0 /\ -Ar_0 + 4 >= 0 /\ 1 >= Ar_4 /\ Ar_5 >= Ar_3 + 1 ]
		(Comp: 1, Cost: 1)    f9(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f16(Ar_0 - 1, 1, Ar_2 + Ar_0 - 1, Ar_3, 2, Ar_5)) [ Ar_4 >= 0 /\ Ar_1 + Ar_4 >= 0 /\ -Ar_0 + Ar_4 + 4 >= 0 /\ -Ar_0 - Ar_1 + 4 >= 0 /\ Ar_1 >= 0 /\ -Ar_0 + Ar_1 + 4 >= 0 /\ -Ar_0 + 4 >= 0 /\ Ar_3 >= Ar_5 + 1 /\ Ar_1 = 0 /\ Ar_4 = 1 ]
		(Comp: ?, Cost: 1)    f9(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f16(Ar_0, Ar_1, Ar_2 + Ar_0, Ar_3, 2, Ar_5)) [ Ar_4 >= 0 /\ Ar_1 + Ar_4 >= 0 /\ -Ar_0 + Ar_4 + 4 >= 0 /\ -Ar_0 - Ar_1 + 4 >= 0 /\ Ar_1 >= 0 /\ -Ar_0 + Ar_1 + 4 >= 0 /\ -Ar_0 + 4 >= 0 /\ Ar_1 >= 1 /\ Ar_3 >= Ar_5 + 1 /\ Ar_4 = 1 ]
		(Comp: ?, Cost: 1)    f9(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f16(Ar_0, Ar_1, Ar_2 + Ar_0, Ar_3, 2, Ar_5)) [ Ar_4 >= 0 /\ Ar_1 + Ar_4 >= 0 /\ -Ar_0 + Ar_4 + 4 >= 0 /\ -Ar_0 - Ar_1 + 4 >= 0 /\ Ar_1 >= 0 /\ -Ar_0 + Ar_1 + 4 >= 0 /\ -Ar_0 + 4 >= 0 /\ Ar_4 >= 2 /\ Ar_3 >= Ar_5 + 1 ]
		(Comp: ?, Cost: 1)    f9(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f16(Ar_0, Ar_1, Ar_2 + Ar_0, Ar_3, 2, Ar_5)) [ Ar_4 >= 0 /\ Ar_1 + Ar_4 >= 0 /\ -Ar_0 + Ar_4 + 4 >= 0 /\ -Ar_0 - Ar_1 + 4 >= 0 /\ Ar_1 >= 0 /\ -Ar_0 + Ar_1 + 4 >= 0 /\ -Ar_0 + 4 >= 0 /\ 0 >= Ar_4 /\ Ar_3 >= Ar_5 + 1 ]
		(Comp: ?, Cost: 1)    f7(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f9(Ar_0 - 1, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5)) [ Ar_4 >= 0 /\ Ar_1 + Ar_4 >= 0 /\ -Ar_0 + Ar_4 + 4 >= 0 /\ -Ar_0 - Ar_1 + 4 >= 0 /\ Ar_1 >= 0 /\ -Ar_0 + Ar_1 + 4 >= 0 /\ -Ar_0 + 4 >= 0 /\ Ar_1 >= 1 ]
		(Comp: 1, Cost: 1)    f0(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f5(4, 0, Ar_2, Fresh_0, 0, Ar_5))
		(Comp: ?, Cost: 1)    f25(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f5(Ar_0, Ar_1, Ar_2, Fresh_1, Ar_4, Ar_5)) [ -Ar_3 + Ar_5 - 1 >= 0 /\ -Ar_4 + 1 >= 0 /\ Ar_1 - Ar_4 + 1 >= 0 /\ -Ar_0 - Ar_4 + 5 >= 0 /\ Ar_4 - 1 >= 0 /\ Ar_1 + Ar_4 - 1 >= 0 /\ -Ar_0 + Ar_4 + 3 >= 0 /\ -Ar_0 - Ar_1 + 4 >= 0 /\ Ar_1 >= 0 /\ -Ar_0 + Ar_1 + 4 >= 0 /\ -Ar_0 + 4 >= 0 /\ Ar_2 >= 0 ]
		(Comp: ?, Cost: 1)    f16(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f5(Ar_0, Ar_1, Ar_2, Fresh_2, Ar_4, Ar_5)) [ Ar_3 - Ar_5 - 1 >= 0 /\ -Ar_4 + 2 >= 0 /\ Ar_1 - Ar_4 + 2 >= 0 /\ -Ar_0 - Ar_4 + 6 >= 0 /\ Ar_4 - 2 >= 0 /\ Ar_1 + Ar_4 - 2 >= 0 /\ -Ar_0 + Ar_4 + 2 >= 0 /\ -Ar_0 - Ar_1 + 4 >= 0 /\ Ar_1 >= 0 /\ -Ar_0 + Ar_1 + 4 >= 0 /\ -Ar_0 + 4 >= 0 /\ 255 >= Ar_2 ]
		(Comp: ?, Cost: 1)    f7(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f9(Ar_0, 0, Ar_2, Ar_3, Ar_4, Ar_5)) [ Ar_4 >= 0 /\ Ar_1 + Ar_4 >= 0 /\ -Ar_0 + Ar_4 + 4 >= 0 /\ -Ar_0 - Ar_1 + 4 >= 0 /\ Ar_1 >= 0 /\ -Ar_0 + Ar_1 + 4 >= 0 /\ -Ar_0 + 4 >= 0 /\ Ar_1 = 0 ]
		(Comp: ?, Cost: 1)    f5(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f7(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5)) [ Ar_4 >= 0 /\ Ar_1 + Ar_4 >= 0 /\ -Ar_0 + Ar_4 + 4 >= 0 /\ -Ar_0 - Ar_1 + 4 >= 0 /\ Ar_1 >= 0 /\ -Ar_0 + Ar_1 + 4 >= 0 /\ -Ar_0 + 4 >= 0 /\ Ar_0 >= 2 ]
		(Comp: ?, Cost: 1)    f5(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5) -> Com_1(f7(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5)) [ Ar_4 >= 0 /\ Ar_1 + Ar_4 >= 0 /\ -Ar_0 + Ar_4 + 4 >= 0 /\ -Ar_0 - Ar_1 + 4 >= 0 /\ Ar_1 >= 0 /\ -Ar_0 + Ar_1 + 4 >= 0 /\ -Ar_0 + 4 >= 0 /\ 0 >= Ar_0 ]
	start location:	koat_start
	leaf cost:	0

Complexity upper bound ?

Time: 12.450 sec (SMT: 11.953 sec)