WORST_CASE(?, O(n^1)) Initial complexity problem: 1: T: (Comp: ?, Cost: 1) start(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(stop(Ar_0, Ar_1, Ar_2, Ar_3, 0, Ar_5, Ar_3, Ar_7)) [ 0 >= Ar_0 /\ Ar_1 = Ar_2 /\ Ar_3 = Ar_0 /\ Ar_4 = Ar_5 /\ Ar_6 = Ar_7 ] (Comp: ?, Cost: 1) start(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(cut(Ar_0, Ar_1, Ar_2, Ar_3, 0, Ar_5, Ar_3 - 1, Ar_7)) [ Ar_0 >= 2 /\ Ar_1 = Ar_2 /\ Ar_3 = Ar_0 /\ Ar_4 = Ar_5 /\ Ar_6 = Ar_7 ] (Comp: ?, Cost: 1) start(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(stop(Ar_0, Ar_1, Ar_2, Ar_3, 0, Ar_5, Ar_3 - 1, Ar_7)) [ Ar_3 = 1 /\ Ar_1 = Ar_2 /\ Ar_0 = 1 /\ Ar_4 = Ar_5 /\ Ar_6 = Ar_7 ] (Comp: ?, Cost: 1) start(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(cut(Ar_0, 0, Ar_2, Ar_3, 1, Ar_5, Ar_3 - 1, Ar_7)) [ Ar_0 >= 2 /\ Ar_1 = Ar_2 /\ Ar_3 = Ar_0 /\ Ar_4 = Ar_5 /\ Ar_6 = Ar_7 ] (Comp: ?, Cost: 1) start(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(stop(Ar_0, 0, Ar_2, Ar_3, 0, Ar_5, Ar_3 - 1, Ar_7)) [ Ar_3 = 1 /\ Ar_1 = Ar_2 /\ Ar_0 = 1 /\ Ar_4 = Ar_5 /\ Ar_6 = Ar_7 ] (Comp: ?, Cost: 1) cut(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(cut(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4 - 1, Ar_5, Ar_6 - 1, Ar_7)) [ Ar_6 >= 2 /\ Ar_4 >= 2 /\ Ar_6 >= 1 /\ Ar_4 >= 0 /\ Ar_0 >= Ar_6 + 1 /\ Ar_0 >= Ar_6 + Ar_4 /\ Ar_3 = Ar_0 ] (Comp: ?, Cost: 1) cut(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(stop(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4 - 1, Ar_5, Ar_6 - 1, Ar_7)) [ Ar_4 >= 2 /\ Ar_4 >= 0 /\ Ar_0 >= 2 /\ Ar_0 >= Ar_4 + 1 /\ Ar_6 = 1 /\ Ar_3 = Ar_0 ] (Comp: ?, Cost: 1) cut(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(cut(Ar_0, Ar_1, Ar_2, Ar_3, 0, Ar_5, Ar_6 - 1, Ar_7)) [ Ar_6 >= 2 /\ 1 >= Ar_4 /\ Ar_6 >= 1 /\ Ar_4 >= 0 /\ Ar_0 >= Ar_6 + 1 /\ Ar_0 >= Ar_6 + Ar_4 /\ Ar_3 = Ar_0 ] (Comp: ?, Cost: 1) cut(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(stop(Ar_0, Ar_1, Ar_2, Ar_3, 0, Ar_5, Ar_6 - 1, Ar_7)) [ 1 >= Ar_4 /\ Ar_4 >= 0 /\ Ar_0 >= 2 /\ Ar_0 >= Ar_4 + 1 /\ Ar_6 = 1 /\ Ar_3 = Ar_0 ] (Comp: ?, Cost: 1) cut(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(cut(Ar_0, Ar_4, Ar_2, Ar_3, Ar_4 + 1, Ar_5, Ar_6 - 1, Ar_7)) [ Ar_6 >= 2 /\ Ar_0 >= Ar_4 + 2 /\ Ar_6 >= 1 /\ Ar_4 >= 0 /\ Ar_0 >= Ar_6 + 1 /\ Ar_0 >= Ar_6 + Ar_4 /\ Ar_3 = Ar_0 ] (Comp: ?, Cost: 1) cut(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(stop(Ar_0, Ar_4, Ar_2, Ar_3, Ar_4 + 1, Ar_5, Ar_6 - 1, Ar_7)) [ Ar_0 >= Ar_4 + 2 /\ Ar_4 >= 0 /\ Ar_0 >= 2 /\ Ar_0 >= Ar_4 + 1 /\ Ar_6 = 1 /\ Ar_3 = Ar_0 ] (Comp: ?, Cost: 1) cut(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(cut(Ar_0, Ar_4, Ar_2, Ar_3, 0, Ar_5, Ar_6 - 1, Ar_7)) [ Ar_6 >= 2 /\ Ar_4 + 1 >= Ar_0 /\ Ar_6 >= 1 /\ Ar_4 >= 0 /\ Ar_0 >= Ar_6 + 1 /\ Ar_0 >= Ar_6 + Ar_4 /\ Ar_3 = Ar_0 ] (Comp: ?, Cost: 1) cut(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(stop(Ar_0, Ar_4, Ar_2, Ar_3, 0, Ar_5, Ar_6 - 1, Ar_7)) [ Ar_0 >= 1 /\ Ar_0 >= 2 /\ Ar_6 = 1 /\ Ar_4 + 1 = Ar_0 /\ Ar_3 = Ar_0 ] (Comp: ?, Cost: 1) start0(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(start(Ar_0, Ar_2, Ar_2, Ar_0, Ar_5, Ar_5, Ar_7, Ar_7)) (Comp: 1, Cost: 0) koat_start(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(start0(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7)) [ 0 <= 0 ] start location: koat_start leaf cost: 0 Testing for reachability in the complexity graph removes the following transition from problem 1: cut(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(cut(Ar_0, Ar_4, Ar_2, Ar_3, 0, Ar_5, Ar_6 - 1, Ar_7)) [ Ar_6 >= 2 /\ Ar_4 + 1 >= Ar_0 /\ Ar_6 >= 1 /\ Ar_4 >= 0 /\ Ar_0 >= Ar_6 + 1 /\ Ar_0 >= Ar_6 + Ar_4 /\ Ar_3 = Ar_0 ] We thus obtain the following problem: 2: T: (Comp: ?, Cost: 1) cut(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(stop(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4 - 1, Ar_5, Ar_6 - 1, Ar_7)) [ Ar_4 >= 2 /\ Ar_4 >= 0 /\ Ar_0 >= 2 /\ Ar_0 >= Ar_4 + 1 /\ Ar_6 = 1 /\ Ar_3 = Ar_0 ] (Comp: ?, Cost: 1) cut(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(cut(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4 - 1, Ar_5, Ar_6 - 1, Ar_7)) [ Ar_6 >= 2 /\ Ar_4 >= 2 /\ Ar_6 >= 1 /\ Ar_4 >= 0 /\ Ar_0 >= Ar_6 + 1 /\ Ar_0 >= Ar_6 + Ar_4 /\ Ar_3 = Ar_0 ] (Comp: ?, Cost: 1) cut(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(stop(Ar_0, Ar_4, Ar_2, Ar_3, 0, Ar_5, Ar_6 - 1, Ar_7)) [ Ar_0 >= 1 /\ Ar_0 >= 2 /\ Ar_6 = 1 /\ Ar_4 + 1 = Ar_0 /\ Ar_3 = Ar_0 ] (Comp: ?, Cost: 1) cut(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(stop(Ar_0, Ar_4, Ar_2, Ar_3, Ar_4 + 1, Ar_5, Ar_6 - 1, Ar_7)) [ Ar_0 >= Ar_4 + 2 /\ Ar_4 >= 0 /\ Ar_0 >= 2 /\ Ar_0 >= Ar_4 + 1 /\ Ar_6 = 1 /\ Ar_3 = Ar_0 ] (Comp: ?, Cost: 1) cut(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(cut(Ar_0, Ar_4, Ar_2, Ar_3, Ar_4 + 1, Ar_5, Ar_6 - 1, Ar_7)) [ Ar_6 >= 2 /\ Ar_0 >= Ar_4 + 2 /\ Ar_6 >= 1 /\ Ar_4 >= 0 /\ Ar_0 >= Ar_6 + 1 /\ Ar_0 >= Ar_6 + Ar_4 /\ Ar_3 = Ar_0 ] (Comp: ?, Cost: 1) cut(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(stop(Ar_0, Ar_1, Ar_2, Ar_3, 0, Ar_5, Ar_6 - 1, Ar_7)) [ 1 >= Ar_4 /\ Ar_4 >= 0 /\ Ar_0 >= 2 /\ Ar_0 >= Ar_4 + 1 /\ Ar_6 = 1 /\ Ar_3 = Ar_0 ] (Comp: ?, Cost: 1) cut(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(cut(Ar_0, Ar_1, Ar_2, Ar_3, 0, Ar_5, Ar_6 - 1, Ar_7)) [ Ar_6 >= 2 /\ 1 >= Ar_4 /\ Ar_6 >= 1 /\ Ar_4 >= 0 /\ Ar_0 >= Ar_6 + 1 /\ Ar_0 >= Ar_6 + Ar_4 /\ Ar_3 = Ar_0 ] (Comp: ?, Cost: 1) start(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(stop(Ar_0, 0, Ar_2, Ar_3, 0, Ar_5, Ar_3 - 1, Ar_7)) [ Ar_3 = 1 /\ Ar_1 = Ar_2 /\ Ar_0 = 1 /\ Ar_4 = Ar_5 /\ Ar_6 = Ar_7 ] (Comp: ?, Cost: 1) start(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(cut(Ar_0, 0, Ar_2, Ar_3, 1, Ar_5, Ar_3 - 1, Ar_7)) [ Ar_0 >= 2 /\ Ar_1 = Ar_2 /\ Ar_3 = Ar_0 /\ Ar_4 = Ar_5 /\ Ar_6 = Ar_7 ] (Comp: ?, Cost: 1) start(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(stop(Ar_0, Ar_1, Ar_2, Ar_3, 0, Ar_5, Ar_3 - 1, Ar_7)) [ Ar_3 = 1 /\ Ar_1 = Ar_2 /\ Ar_0 = 1 /\ Ar_4 = Ar_5 /\ Ar_6 = Ar_7 ] (Comp: ?, Cost: 1) start(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(cut(Ar_0, Ar_1, Ar_2, Ar_3, 0, Ar_5, Ar_3 - 1, Ar_7)) [ Ar_0 >= 2 /\ Ar_1 = Ar_2 /\ Ar_3 = Ar_0 /\ Ar_4 = Ar_5 /\ Ar_6 = Ar_7 ] (Comp: ?, Cost: 1) start(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(stop(Ar_0, Ar_1, Ar_2, Ar_3, 0, Ar_5, Ar_3, Ar_7)) [ 0 >= Ar_0 /\ Ar_1 = Ar_2 /\ Ar_3 = Ar_0 /\ Ar_4 = Ar_5 /\ Ar_6 = Ar_7 ] (Comp: ?, Cost: 1) start0(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(start(Ar_0, Ar_2, Ar_2, Ar_0, Ar_5, Ar_5, Ar_7, Ar_7)) (Comp: 1, Cost: 0) koat_start(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(start0(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7)) [ 0 <= 0 ] start location: koat_start leaf cost: 0 Repeatedly propagating knowledge in problem 2 produces the following problem: 3: T: (Comp: ?, Cost: 1) cut(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(stop(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4 - 1, Ar_5, Ar_6 - 1, Ar_7)) [ Ar_4 >= 2 /\ Ar_4 >= 0 /\ Ar_0 >= 2 /\ Ar_0 >= Ar_4 + 1 /\ Ar_6 = 1 /\ Ar_3 = Ar_0 ] (Comp: ?, Cost: 1) cut(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(cut(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4 - 1, Ar_5, Ar_6 - 1, Ar_7)) [ Ar_6 >= 2 /\ Ar_4 >= 2 /\ Ar_6 >= 1 /\ Ar_4 >= 0 /\ Ar_0 >= Ar_6 + 1 /\ Ar_0 >= Ar_6 + Ar_4 /\ Ar_3 = Ar_0 ] (Comp: ?, Cost: 1) cut(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(stop(Ar_0, Ar_4, Ar_2, Ar_3, 0, Ar_5, Ar_6 - 1, Ar_7)) [ Ar_0 >= 1 /\ Ar_0 >= 2 /\ Ar_6 = 1 /\ Ar_4 + 1 = Ar_0 /\ Ar_3 = Ar_0 ] (Comp: ?, Cost: 1) cut(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(stop(Ar_0, Ar_4, Ar_2, Ar_3, Ar_4 + 1, Ar_5, Ar_6 - 1, Ar_7)) [ Ar_0 >= Ar_4 + 2 /\ Ar_4 >= 0 /\ Ar_0 >= 2 /\ Ar_0 >= Ar_4 + 1 /\ Ar_6 = 1 /\ Ar_3 = Ar_0 ] (Comp: ?, Cost: 1) cut(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(cut(Ar_0, Ar_4, Ar_2, Ar_3, Ar_4 + 1, Ar_5, Ar_6 - 1, Ar_7)) [ Ar_6 >= 2 /\ Ar_0 >= Ar_4 + 2 /\ Ar_6 >= 1 /\ Ar_4 >= 0 /\ Ar_0 >= Ar_6 + 1 /\ Ar_0 >= Ar_6 + Ar_4 /\ Ar_3 = Ar_0 ] (Comp: ?, Cost: 1) cut(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(stop(Ar_0, Ar_1, Ar_2, Ar_3, 0, Ar_5, Ar_6 - 1, Ar_7)) [ 1 >= Ar_4 /\ Ar_4 >= 0 /\ Ar_0 >= 2 /\ Ar_0 >= Ar_4 + 1 /\ Ar_6 = 1 /\ Ar_3 = Ar_0 ] (Comp: ?, Cost: 1) cut(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(cut(Ar_0, Ar_1, Ar_2, Ar_3, 0, Ar_5, Ar_6 - 1, Ar_7)) [ Ar_6 >= 2 /\ 1 >= Ar_4 /\ Ar_6 >= 1 /\ Ar_4 >= 0 /\ Ar_0 >= Ar_6 + 1 /\ Ar_0 >= Ar_6 + Ar_4 /\ Ar_3 = Ar_0 ] (Comp: 1, Cost: 1) start(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(stop(Ar_0, 0, Ar_2, Ar_3, 0, Ar_5, Ar_3 - 1, Ar_7)) [ Ar_3 = 1 /\ Ar_1 = Ar_2 /\ Ar_0 = 1 /\ Ar_4 = Ar_5 /\ Ar_6 = Ar_7 ] (Comp: 1, Cost: 1) start(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(cut(Ar_0, 0, Ar_2, Ar_3, 1, Ar_5, Ar_3 - 1, Ar_7)) [ Ar_0 >= 2 /\ Ar_1 = Ar_2 /\ Ar_3 = Ar_0 /\ Ar_4 = Ar_5 /\ Ar_6 = Ar_7 ] (Comp: 1, Cost: 1) start(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(stop(Ar_0, Ar_1, Ar_2, Ar_3, 0, Ar_5, Ar_3 - 1, Ar_7)) [ Ar_3 = 1 /\ Ar_1 = Ar_2 /\ Ar_0 = 1 /\ Ar_4 = Ar_5 /\ Ar_6 = Ar_7 ] (Comp: 1, Cost: 1) start(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(cut(Ar_0, Ar_1, Ar_2, Ar_3, 0, Ar_5, Ar_3 - 1, Ar_7)) [ Ar_0 >= 2 /\ Ar_1 = Ar_2 /\ Ar_3 = Ar_0 /\ Ar_4 = Ar_5 /\ Ar_6 = Ar_7 ] (Comp: 1, Cost: 1) start(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(stop(Ar_0, Ar_1, Ar_2, Ar_3, 0, Ar_5, Ar_3, Ar_7)) [ 0 >= Ar_0 /\ Ar_1 = Ar_2 /\ Ar_3 = Ar_0 /\ Ar_4 = Ar_5 /\ Ar_6 = Ar_7 ] (Comp: 1, Cost: 1) start0(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(start(Ar_0, Ar_2, Ar_2, Ar_0, Ar_5, Ar_5, Ar_7, Ar_7)) (Comp: 1, Cost: 0) koat_start(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(start0(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7)) [ 0 <= 0 ] start location: koat_start leaf cost: 0 A polynomial rank function with Pol(cut) = 1 Pol(stop) = 0 Pol(start) = 1 Pol(start0) = 1 Pol(koat_start) = 1 orients all transitions weakly and the transitions cut(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(stop(Ar_0, Ar_4, Ar_2, Ar_3, Ar_4 + 1, Ar_5, Ar_6 - 1, Ar_7)) [ Ar_0 >= Ar_4 + 2 /\ Ar_4 >= 0 /\ Ar_0 >= 2 /\ Ar_0 >= Ar_4 + 1 /\ Ar_6 = 1 /\ Ar_3 = Ar_0 ] cut(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(stop(Ar_0, Ar_4, Ar_2, Ar_3, 0, Ar_5, Ar_6 - 1, Ar_7)) [ Ar_0 >= 1 /\ Ar_0 >= 2 /\ Ar_6 = 1 /\ Ar_4 + 1 = Ar_0 /\ Ar_3 = Ar_0 ] strictly and produces the following problem: 4: T: (Comp: ?, Cost: 1) cut(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(stop(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4 - 1, Ar_5, Ar_6 - 1, Ar_7)) [ Ar_4 >= 2 /\ Ar_4 >= 0 /\ Ar_0 >= 2 /\ Ar_0 >= Ar_4 + 1 /\ Ar_6 = 1 /\ Ar_3 = Ar_0 ] (Comp: ?, Cost: 1) cut(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(cut(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4 - 1, Ar_5, Ar_6 - 1, Ar_7)) [ Ar_6 >= 2 /\ Ar_4 >= 2 /\ Ar_6 >= 1 /\ Ar_4 >= 0 /\ Ar_0 >= Ar_6 + 1 /\ Ar_0 >= Ar_6 + Ar_4 /\ Ar_3 = Ar_0 ] (Comp: 1, Cost: 1) cut(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(stop(Ar_0, Ar_4, Ar_2, Ar_3, 0, Ar_5, Ar_6 - 1, Ar_7)) [ Ar_0 >= 1 /\ Ar_0 >= 2 /\ Ar_6 = 1 /\ Ar_4 + 1 = Ar_0 /\ Ar_3 = Ar_0 ] (Comp: 1, Cost: 1) cut(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(stop(Ar_0, Ar_4, Ar_2, Ar_3, Ar_4 + 1, Ar_5, Ar_6 - 1, Ar_7)) [ Ar_0 >= Ar_4 + 2 /\ Ar_4 >= 0 /\ Ar_0 >= 2 /\ Ar_0 >= Ar_4 + 1 /\ Ar_6 = 1 /\ Ar_3 = Ar_0 ] (Comp: ?, Cost: 1) cut(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(cut(Ar_0, Ar_4, Ar_2, Ar_3, Ar_4 + 1, Ar_5, Ar_6 - 1, Ar_7)) [ Ar_6 >= 2 /\ Ar_0 >= Ar_4 + 2 /\ Ar_6 >= 1 /\ Ar_4 >= 0 /\ Ar_0 >= Ar_6 + 1 /\ Ar_0 >= Ar_6 + Ar_4 /\ Ar_3 = Ar_0 ] (Comp: ?, Cost: 1) cut(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(stop(Ar_0, Ar_1, Ar_2, Ar_3, 0, Ar_5, Ar_6 - 1, Ar_7)) [ 1 >= Ar_4 /\ Ar_4 >= 0 /\ Ar_0 >= 2 /\ Ar_0 >= Ar_4 + 1 /\ Ar_6 = 1 /\ Ar_3 = Ar_0 ] (Comp: ?, Cost: 1) cut(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(cut(Ar_0, Ar_1, Ar_2, Ar_3, 0, Ar_5, Ar_6 - 1, Ar_7)) [ Ar_6 >= 2 /\ 1 >= Ar_4 /\ Ar_6 >= 1 /\ Ar_4 >= 0 /\ Ar_0 >= Ar_6 + 1 /\ Ar_0 >= Ar_6 + Ar_4 /\ Ar_3 = Ar_0 ] (Comp: 1, Cost: 1) start(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(stop(Ar_0, 0, Ar_2, Ar_3, 0, Ar_5, Ar_3 - 1, Ar_7)) [ Ar_3 = 1 /\ Ar_1 = Ar_2 /\ Ar_0 = 1 /\ Ar_4 = Ar_5 /\ Ar_6 = Ar_7 ] (Comp: 1, Cost: 1) start(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(cut(Ar_0, 0, Ar_2, Ar_3, 1, Ar_5, Ar_3 - 1, Ar_7)) [ Ar_0 >= 2 /\ Ar_1 = Ar_2 /\ Ar_3 = Ar_0 /\ Ar_4 = Ar_5 /\ Ar_6 = Ar_7 ] (Comp: 1, Cost: 1) start(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(stop(Ar_0, Ar_1, Ar_2, Ar_3, 0, Ar_5, Ar_3 - 1, Ar_7)) [ Ar_3 = 1 /\ Ar_1 = Ar_2 /\ Ar_0 = 1 /\ Ar_4 = Ar_5 /\ Ar_6 = Ar_7 ] (Comp: 1, Cost: 1) start(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(cut(Ar_0, Ar_1, Ar_2, Ar_3, 0, Ar_5, Ar_3 - 1, Ar_7)) [ Ar_0 >= 2 /\ Ar_1 = Ar_2 /\ Ar_3 = Ar_0 /\ Ar_4 = Ar_5 /\ Ar_6 = Ar_7 ] (Comp: 1, Cost: 1) start(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(stop(Ar_0, Ar_1, Ar_2, Ar_3, 0, Ar_5, Ar_3, Ar_7)) [ 0 >= Ar_0 /\ Ar_1 = Ar_2 /\ Ar_3 = Ar_0 /\ Ar_4 = Ar_5 /\ Ar_6 = Ar_7 ] (Comp: 1, Cost: 1) start0(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(start(Ar_0, Ar_2, Ar_2, Ar_0, Ar_5, Ar_5, Ar_7, Ar_7)) (Comp: 1, Cost: 0) koat_start(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(start0(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7)) [ 0 <= 0 ] start location: koat_start leaf cost: 0 A polynomial rank function with Pol(cut) = 1 Pol(stop) = 0 Pol(start) = 1 Pol(start0) = 1 Pol(koat_start) = 1 orients all transitions weakly and the transitions cut(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(stop(Ar_0, Ar_1, Ar_2, Ar_3, 0, Ar_5, Ar_6 - 1, Ar_7)) [ 1 >= Ar_4 /\ Ar_4 >= 0 /\ Ar_0 >= 2 /\ Ar_0 >= Ar_4 + 1 /\ Ar_6 = 1 /\ Ar_3 = Ar_0 ] cut(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(stop(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4 - 1, Ar_5, Ar_6 - 1, Ar_7)) [ Ar_4 >= 2 /\ Ar_4 >= 0 /\ Ar_0 >= 2 /\ Ar_0 >= Ar_4 + 1 /\ Ar_6 = 1 /\ Ar_3 = Ar_0 ] strictly and produces the following problem: 5: T: (Comp: 1, Cost: 1) cut(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(stop(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4 - 1, Ar_5, Ar_6 - 1, Ar_7)) [ Ar_4 >= 2 /\ Ar_4 >= 0 /\ Ar_0 >= 2 /\ Ar_0 >= Ar_4 + 1 /\ Ar_6 = 1 /\ Ar_3 = Ar_0 ] (Comp: ?, Cost: 1) cut(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(cut(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4 - 1, Ar_5, Ar_6 - 1, Ar_7)) [ Ar_6 >= 2 /\ Ar_4 >= 2 /\ Ar_6 >= 1 /\ Ar_4 >= 0 /\ Ar_0 >= Ar_6 + 1 /\ Ar_0 >= Ar_6 + Ar_4 /\ Ar_3 = Ar_0 ] (Comp: 1, Cost: 1) cut(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(stop(Ar_0, Ar_4, Ar_2, Ar_3, 0, Ar_5, Ar_6 - 1, Ar_7)) [ Ar_0 >= 1 /\ Ar_0 >= 2 /\ Ar_6 = 1 /\ Ar_4 + 1 = Ar_0 /\ Ar_3 = Ar_0 ] (Comp: 1, Cost: 1) cut(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(stop(Ar_0, Ar_4, Ar_2, Ar_3, Ar_4 + 1, Ar_5, Ar_6 - 1, Ar_7)) [ Ar_0 >= Ar_4 + 2 /\ Ar_4 >= 0 /\ Ar_0 >= 2 /\ Ar_0 >= Ar_4 + 1 /\ Ar_6 = 1 /\ Ar_3 = Ar_0 ] (Comp: ?, Cost: 1) cut(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(cut(Ar_0, Ar_4, Ar_2, Ar_3, Ar_4 + 1, Ar_5, Ar_6 - 1, Ar_7)) [ Ar_6 >= 2 /\ Ar_0 >= Ar_4 + 2 /\ Ar_6 >= 1 /\ Ar_4 >= 0 /\ Ar_0 >= Ar_6 + 1 /\ Ar_0 >= Ar_6 + Ar_4 /\ Ar_3 = Ar_0 ] (Comp: 1, Cost: 1) cut(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(stop(Ar_0, Ar_1, Ar_2, Ar_3, 0, Ar_5, Ar_6 - 1, Ar_7)) [ 1 >= Ar_4 /\ Ar_4 >= 0 /\ Ar_0 >= 2 /\ Ar_0 >= Ar_4 + 1 /\ Ar_6 = 1 /\ Ar_3 = Ar_0 ] (Comp: ?, Cost: 1) cut(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(cut(Ar_0, Ar_1, Ar_2, Ar_3, 0, Ar_5, Ar_6 - 1, Ar_7)) [ Ar_6 >= 2 /\ 1 >= Ar_4 /\ Ar_6 >= 1 /\ Ar_4 >= 0 /\ Ar_0 >= Ar_6 + 1 /\ Ar_0 >= Ar_6 + Ar_4 /\ Ar_3 = Ar_0 ] (Comp: 1, Cost: 1) start(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(stop(Ar_0, 0, Ar_2, Ar_3, 0, Ar_5, Ar_3 - 1, Ar_7)) [ Ar_3 = 1 /\ Ar_1 = Ar_2 /\ Ar_0 = 1 /\ Ar_4 = Ar_5 /\ Ar_6 = Ar_7 ] (Comp: 1, Cost: 1) start(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(cut(Ar_0, 0, Ar_2, Ar_3, 1, Ar_5, Ar_3 - 1, Ar_7)) [ Ar_0 >= 2 /\ Ar_1 = Ar_2 /\ Ar_3 = Ar_0 /\ Ar_4 = Ar_5 /\ Ar_6 = Ar_7 ] (Comp: 1, Cost: 1) start(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(stop(Ar_0, Ar_1, Ar_2, Ar_3, 0, Ar_5, Ar_3 - 1, Ar_7)) [ Ar_3 = 1 /\ Ar_1 = Ar_2 /\ Ar_0 = 1 /\ Ar_4 = Ar_5 /\ Ar_6 = Ar_7 ] (Comp: 1, Cost: 1) start(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(cut(Ar_0, Ar_1, Ar_2, Ar_3, 0, Ar_5, Ar_3 - 1, Ar_7)) [ Ar_0 >= 2 /\ Ar_1 = Ar_2 /\ Ar_3 = Ar_0 /\ Ar_4 = Ar_5 /\ Ar_6 = Ar_7 ] (Comp: 1, Cost: 1) start(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(stop(Ar_0, Ar_1, Ar_2, Ar_3, 0, Ar_5, Ar_3, Ar_7)) [ 0 >= Ar_0 /\ Ar_1 = Ar_2 /\ Ar_3 = Ar_0 /\ Ar_4 = Ar_5 /\ Ar_6 = Ar_7 ] (Comp: 1, Cost: 1) start0(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(start(Ar_0, Ar_2, Ar_2, Ar_0, Ar_5, Ar_5, Ar_7, Ar_7)) (Comp: 1, Cost: 0) koat_start(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(start0(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7)) [ 0 <= 0 ] start location: koat_start leaf cost: 0 A polynomial rank function with Pol(cut) = V_7 Pol(stop) = V_7 Pol(start) = V_4 Pol(start0) = V_1 Pol(koat_start) = V_1 orients all transitions weakly and the transitions cut(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(cut(Ar_0, Ar_4, Ar_2, Ar_3, Ar_4 + 1, Ar_5, Ar_6 - 1, Ar_7)) [ Ar_6 >= 2 /\ Ar_0 >= Ar_4 + 2 /\ Ar_6 >= 1 /\ Ar_4 >= 0 /\ Ar_0 >= Ar_6 + 1 /\ Ar_0 >= Ar_6 + Ar_4 /\ Ar_3 = Ar_0 ] cut(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(cut(Ar_0, Ar_1, Ar_2, Ar_3, 0, Ar_5, Ar_6 - 1, Ar_7)) [ Ar_6 >= 2 /\ 1 >= Ar_4 /\ Ar_6 >= 1 /\ Ar_4 >= 0 /\ Ar_0 >= Ar_6 + 1 /\ Ar_0 >= Ar_6 + Ar_4 /\ Ar_3 = Ar_0 ] cut(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(cut(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4 - 1, Ar_5, Ar_6 - 1, Ar_7)) [ Ar_6 >= 2 /\ Ar_4 >= 2 /\ Ar_6 >= 1 /\ Ar_4 >= 0 /\ Ar_0 >= Ar_6 + 1 /\ Ar_0 >= Ar_6 + Ar_4 /\ Ar_3 = Ar_0 ] strictly and produces the following problem: 6: T: (Comp: 1, Cost: 1) cut(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(stop(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4 - 1, Ar_5, Ar_6 - 1, Ar_7)) [ Ar_4 >= 2 /\ Ar_4 >= 0 /\ Ar_0 >= 2 /\ Ar_0 >= Ar_4 + 1 /\ Ar_6 = 1 /\ Ar_3 = Ar_0 ] (Comp: Ar_0, Cost: 1) cut(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(cut(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4 - 1, Ar_5, Ar_6 - 1, Ar_7)) [ Ar_6 >= 2 /\ Ar_4 >= 2 /\ Ar_6 >= 1 /\ Ar_4 >= 0 /\ Ar_0 >= Ar_6 + 1 /\ Ar_0 >= Ar_6 + Ar_4 /\ Ar_3 = Ar_0 ] (Comp: 1, Cost: 1) cut(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(stop(Ar_0, Ar_4, Ar_2, Ar_3, 0, Ar_5, Ar_6 - 1, Ar_7)) [ Ar_0 >= 1 /\ Ar_0 >= 2 /\ Ar_6 = 1 /\ Ar_4 + 1 = Ar_0 /\ Ar_3 = Ar_0 ] (Comp: 1, Cost: 1) cut(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(stop(Ar_0, Ar_4, Ar_2, Ar_3, Ar_4 + 1, Ar_5, Ar_6 - 1, Ar_7)) [ Ar_0 >= Ar_4 + 2 /\ Ar_4 >= 0 /\ Ar_0 >= 2 /\ Ar_0 >= Ar_4 + 1 /\ Ar_6 = 1 /\ Ar_3 = Ar_0 ] (Comp: Ar_0, Cost: 1) cut(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(cut(Ar_0, Ar_4, Ar_2, Ar_3, Ar_4 + 1, Ar_5, Ar_6 - 1, Ar_7)) [ Ar_6 >= 2 /\ Ar_0 >= Ar_4 + 2 /\ Ar_6 >= 1 /\ Ar_4 >= 0 /\ Ar_0 >= Ar_6 + 1 /\ Ar_0 >= Ar_6 + Ar_4 /\ Ar_3 = Ar_0 ] (Comp: 1, Cost: 1) cut(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(stop(Ar_0, Ar_1, Ar_2, Ar_3, 0, Ar_5, Ar_6 - 1, Ar_7)) [ 1 >= Ar_4 /\ Ar_4 >= 0 /\ Ar_0 >= 2 /\ Ar_0 >= Ar_4 + 1 /\ Ar_6 = 1 /\ Ar_3 = Ar_0 ] (Comp: Ar_0, Cost: 1) cut(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(cut(Ar_0, Ar_1, Ar_2, Ar_3, 0, Ar_5, Ar_6 - 1, Ar_7)) [ Ar_6 >= 2 /\ 1 >= Ar_4 /\ Ar_6 >= 1 /\ Ar_4 >= 0 /\ Ar_0 >= Ar_6 + 1 /\ Ar_0 >= Ar_6 + Ar_4 /\ Ar_3 = Ar_0 ] (Comp: 1, Cost: 1) start(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(stop(Ar_0, 0, Ar_2, Ar_3, 0, Ar_5, Ar_3 - 1, Ar_7)) [ Ar_3 = 1 /\ Ar_1 = Ar_2 /\ Ar_0 = 1 /\ Ar_4 = Ar_5 /\ Ar_6 = Ar_7 ] (Comp: 1, Cost: 1) start(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(cut(Ar_0, 0, Ar_2, Ar_3, 1, Ar_5, Ar_3 - 1, Ar_7)) [ Ar_0 >= 2 /\ Ar_1 = Ar_2 /\ Ar_3 = Ar_0 /\ Ar_4 = Ar_5 /\ Ar_6 = Ar_7 ] (Comp: 1, Cost: 1) start(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(stop(Ar_0, Ar_1, Ar_2, Ar_3, 0, Ar_5, Ar_3 - 1, Ar_7)) [ Ar_3 = 1 /\ Ar_1 = Ar_2 /\ Ar_0 = 1 /\ Ar_4 = Ar_5 /\ Ar_6 = Ar_7 ] (Comp: 1, Cost: 1) start(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(cut(Ar_0, Ar_1, Ar_2, Ar_3, 0, Ar_5, Ar_3 - 1, Ar_7)) [ Ar_0 >= 2 /\ Ar_1 = Ar_2 /\ Ar_3 = Ar_0 /\ Ar_4 = Ar_5 /\ Ar_6 = Ar_7 ] (Comp: 1, Cost: 1) start(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(stop(Ar_0, Ar_1, Ar_2, Ar_3, 0, Ar_5, Ar_3, Ar_7)) [ 0 >= Ar_0 /\ Ar_1 = Ar_2 /\ Ar_3 = Ar_0 /\ Ar_4 = Ar_5 /\ Ar_6 = Ar_7 ] (Comp: 1, Cost: 1) start0(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(start(Ar_0, Ar_2, Ar_2, Ar_0, Ar_5, Ar_5, Ar_7, Ar_7)) (Comp: 1, Cost: 0) koat_start(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7) -> Com_1(start0(Ar_0, Ar_1, Ar_2, Ar_3, Ar_4, Ar_5, Ar_6, Ar_7)) [ 0 <= 0 ] start location: koat_start leaf cost: 0 Complexity upper bound 3*Ar_0 + 10 Time: 4.716 sec (SMT: 4.522 sec)