WORST_CASE(?, O(1)) Initial complexity problem: 1: T: (Comp: ?, Cost: 1) eval_nd_loop_start(Ar_0, Ar_1) -> Com_1(eval_nd_loop_bb0_in(Ar_0, Ar_1)) (Comp: ?, Cost: 1) eval_nd_loop_bb0_in(Ar_0, Ar_1) -> Com_1(eval_nd_loop_0(Ar_0, Ar_1)) (Comp: ?, Cost: 1) eval_nd_loop_0(Ar_0, Ar_1) -> Com_1(eval_nd_loop_1(Ar_0, Ar_1)) (Comp: ?, Cost: 1) eval_nd_loop_1(Ar_0, Ar_1) -> Com_1(eval_nd_loop_2(Ar_0, Ar_1)) (Comp: ?, Cost: 1) eval_nd_loop_2(Ar_0, Ar_1) -> Com_1(eval_nd_loop_3(Ar_0, Ar_1)) (Comp: ?, Cost: 1) eval_nd_loop_3(Ar_0, Ar_1) -> Com_1(eval_nd_loop_bb1_in(Ar_0, 0)) (Comp: ?, Cost: 1) eval_nd_loop_bb1_in(Ar_0, Ar_1) -> Com_1(eval_nd_loop_4(Ar_0, Ar_1)) (Comp: ?, Cost: 1) eval_nd_loop_4(Ar_0, Ar_1) -> Com_1(eval_nd_loop_5(Fresh_0, Ar_1)) (Comp: ?, Cost: 1) eval_nd_loop_5(Ar_0, Ar_1) -> Com_1(eval_nd_loop_bb1_in(Ar_0, Ar_0)) [ Ar_0 - Ar_1 <= 2 /\ Ar_0 - Ar_1 >= 1 /\ Ar_0 < 10 ] (Comp: ?, Cost: 1) eval_nd_loop_5(Ar_0, Ar_1) -> Com_1(eval_nd_loop_bb2_in(Ar_0, Ar_1)) [ Ar_0 - Ar_1 > 2 ] (Comp: ?, Cost: 1) eval_nd_loop_5(Ar_0, Ar_1) -> Com_1(eval_nd_loop_bb2_in(Ar_0, Ar_1)) [ Ar_0 - Ar_1 < 1 ] (Comp: ?, Cost: 1) eval_nd_loop_5(Ar_0, Ar_1) -> Com_1(eval_nd_loop_bb2_in(Ar_0, Ar_1)) [ Ar_0 >= 10 ] (Comp: ?, Cost: 1) eval_nd_loop_bb2_in(Ar_0, Ar_1) -> Com_1(eval_nd_loop_stop(Ar_0, Ar_1)) (Comp: 1, Cost: 0) koat_start(Ar_0, Ar_1) -> Com_1(eval_nd_loop_start(Ar_0, Ar_1)) [ 0 <= 0 ] start location: koat_start leaf cost: 0 Repeatedly propagating knowledge in problem 1 produces the following problem: 2: T: (Comp: 1, Cost: 1) eval_nd_loop_start(Ar_0, Ar_1) -> Com_1(eval_nd_loop_bb0_in(Ar_0, Ar_1)) (Comp: 1, Cost: 1) eval_nd_loop_bb0_in(Ar_0, Ar_1) -> Com_1(eval_nd_loop_0(Ar_0, Ar_1)) (Comp: 1, Cost: 1) eval_nd_loop_0(Ar_0, Ar_1) -> Com_1(eval_nd_loop_1(Ar_0, Ar_1)) (Comp: 1, Cost: 1) eval_nd_loop_1(Ar_0, Ar_1) -> Com_1(eval_nd_loop_2(Ar_0, Ar_1)) (Comp: 1, Cost: 1) eval_nd_loop_2(Ar_0, Ar_1) -> Com_1(eval_nd_loop_3(Ar_0, Ar_1)) (Comp: 1, Cost: 1) eval_nd_loop_3(Ar_0, Ar_1) -> Com_1(eval_nd_loop_bb1_in(Ar_0, 0)) (Comp: ?, Cost: 1) eval_nd_loop_bb1_in(Ar_0, Ar_1) -> Com_1(eval_nd_loop_4(Ar_0, Ar_1)) (Comp: ?, Cost: 1) eval_nd_loop_4(Ar_0, Ar_1) -> Com_1(eval_nd_loop_5(Fresh_0, Ar_1)) (Comp: ?, Cost: 1) eval_nd_loop_5(Ar_0, Ar_1) -> Com_1(eval_nd_loop_bb1_in(Ar_0, Ar_0)) [ Ar_0 - Ar_1 <= 2 /\ Ar_0 - Ar_1 >= 1 /\ Ar_0 < 10 ] (Comp: ?, Cost: 1) eval_nd_loop_5(Ar_0, Ar_1) -> Com_1(eval_nd_loop_bb2_in(Ar_0, Ar_1)) [ Ar_0 - Ar_1 > 2 ] (Comp: ?, Cost: 1) eval_nd_loop_5(Ar_0, Ar_1) -> Com_1(eval_nd_loop_bb2_in(Ar_0, Ar_1)) [ Ar_0 - Ar_1 < 1 ] (Comp: ?, Cost: 1) eval_nd_loop_5(Ar_0, Ar_1) -> Com_1(eval_nd_loop_bb2_in(Ar_0, Ar_1)) [ Ar_0 >= 10 ] (Comp: ?, Cost: 1) eval_nd_loop_bb2_in(Ar_0, Ar_1) -> Com_1(eval_nd_loop_stop(Ar_0, Ar_1)) (Comp: 1, Cost: 0) koat_start(Ar_0, Ar_1) -> Com_1(eval_nd_loop_start(Ar_0, Ar_1)) [ 0 <= 0 ] start location: koat_start leaf cost: 0 A polynomial rank function with Pol(eval_nd_loop_start) = 2 Pol(eval_nd_loop_bb0_in) = 2 Pol(eval_nd_loop_0) = 2 Pol(eval_nd_loop_1) = 2 Pol(eval_nd_loop_2) = 2 Pol(eval_nd_loop_3) = 2 Pol(eval_nd_loop_bb1_in) = 2 Pol(eval_nd_loop_4) = 2 Pol(eval_nd_loop_5) = 2 Pol(eval_nd_loop_bb2_in) = 1 Pol(eval_nd_loop_stop) = 0 Pol(koat_start) = 2 orients all transitions weakly and the transitions eval_nd_loop_bb2_in(Ar_0, Ar_1) -> Com_1(eval_nd_loop_stop(Ar_0, Ar_1)) eval_nd_loop_5(Ar_0, Ar_1) -> Com_1(eval_nd_loop_bb2_in(Ar_0, Ar_1)) [ Ar_0 - Ar_1 < 1 ] eval_nd_loop_5(Ar_0, Ar_1) -> Com_1(eval_nd_loop_bb2_in(Ar_0, Ar_1)) [ Ar_0 - Ar_1 > 2 ] eval_nd_loop_5(Ar_0, Ar_1) -> Com_1(eval_nd_loop_bb2_in(Ar_0, Ar_1)) [ Ar_0 >= 10 ] strictly and produces the following problem: 3: T: (Comp: 1, Cost: 1) eval_nd_loop_start(Ar_0, Ar_1) -> Com_1(eval_nd_loop_bb0_in(Ar_0, Ar_1)) (Comp: 1, Cost: 1) eval_nd_loop_bb0_in(Ar_0, Ar_1) -> Com_1(eval_nd_loop_0(Ar_0, Ar_1)) (Comp: 1, Cost: 1) eval_nd_loop_0(Ar_0, Ar_1) -> Com_1(eval_nd_loop_1(Ar_0, Ar_1)) (Comp: 1, Cost: 1) eval_nd_loop_1(Ar_0, Ar_1) -> Com_1(eval_nd_loop_2(Ar_0, Ar_1)) (Comp: 1, Cost: 1) eval_nd_loop_2(Ar_0, Ar_1) -> Com_1(eval_nd_loop_3(Ar_0, Ar_1)) (Comp: 1, Cost: 1) eval_nd_loop_3(Ar_0, Ar_1) -> Com_1(eval_nd_loop_bb1_in(Ar_0, 0)) (Comp: ?, Cost: 1) eval_nd_loop_bb1_in(Ar_0, Ar_1) -> Com_1(eval_nd_loop_4(Ar_0, Ar_1)) (Comp: ?, Cost: 1) eval_nd_loop_4(Ar_0, Ar_1) -> Com_1(eval_nd_loop_5(Fresh_0, Ar_1)) (Comp: ?, Cost: 1) eval_nd_loop_5(Ar_0, Ar_1) -> Com_1(eval_nd_loop_bb1_in(Ar_0, Ar_0)) [ Ar_0 - Ar_1 <= 2 /\ Ar_0 - Ar_1 >= 1 /\ Ar_0 < 10 ] (Comp: 2, Cost: 1) eval_nd_loop_5(Ar_0, Ar_1) -> Com_1(eval_nd_loop_bb2_in(Ar_0, Ar_1)) [ Ar_0 - Ar_1 > 2 ] (Comp: 2, Cost: 1) eval_nd_loop_5(Ar_0, Ar_1) -> Com_1(eval_nd_loop_bb2_in(Ar_0, Ar_1)) [ Ar_0 - Ar_1 < 1 ] (Comp: 2, Cost: 1) eval_nd_loop_5(Ar_0, Ar_1) -> Com_1(eval_nd_loop_bb2_in(Ar_0, Ar_1)) [ Ar_0 >= 10 ] (Comp: 2, Cost: 1) eval_nd_loop_bb2_in(Ar_0, Ar_1) -> Com_1(eval_nd_loop_stop(Ar_0, Ar_1)) (Comp: 1, Cost: 0) koat_start(Ar_0, Ar_1) -> Com_1(eval_nd_loop_start(Ar_0, Ar_1)) [ 0 <= 0 ] start location: koat_start leaf cost: 0 A polynomial rank function with Pol(eval_nd_loop_start) = 27 Pol(eval_nd_loop_bb0_in) = 27 Pol(eval_nd_loop_0) = 27 Pol(eval_nd_loop_1) = 27 Pol(eval_nd_loop_2) = 27 Pol(eval_nd_loop_3) = 27 Pol(eval_nd_loop_bb1_in) = -3*V_2 + 27 Pol(eval_nd_loop_4) = -3*V_2 + 26 Pol(eval_nd_loop_5) = -3*V_2 + 25 Pol(eval_nd_loop_bb2_in) = -3*V_2 + 25 Pol(eval_nd_loop_stop) = -3*V_2 + 25 Pol(koat_start) = 27 orients all transitions weakly and the transition eval_nd_loop_5(Ar_0, Ar_1) -> Com_1(eval_nd_loop_bb1_in(Ar_0, Ar_0)) [ Ar_0 - Ar_1 <= 2 /\ Ar_0 - Ar_1 >= 1 /\ Ar_0 < 10 ] strictly and produces the following problem: 4: T: (Comp: 1, Cost: 1) eval_nd_loop_start(Ar_0, Ar_1) -> Com_1(eval_nd_loop_bb0_in(Ar_0, Ar_1)) (Comp: 1, Cost: 1) eval_nd_loop_bb0_in(Ar_0, Ar_1) -> Com_1(eval_nd_loop_0(Ar_0, Ar_1)) (Comp: 1, Cost: 1) eval_nd_loop_0(Ar_0, Ar_1) -> Com_1(eval_nd_loop_1(Ar_0, Ar_1)) (Comp: 1, Cost: 1) eval_nd_loop_1(Ar_0, Ar_1) -> Com_1(eval_nd_loop_2(Ar_0, Ar_1)) (Comp: 1, Cost: 1) eval_nd_loop_2(Ar_0, Ar_1) -> Com_1(eval_nd_loop_3(Ar_0, Ar_1)) (Comp: 1, Cost: 1) eval_nd_loop_3(Ar_0, Ar_1) -> Com_1(eval_nd_loop_bb1_in(Ar_0, 0)) (Comp: ?, Cost: 1) eval_nd_loop_bb1_in(Ar_0, Ar_1) -> Com_1(eval_nd_loop_4(Ar_0, Ar_1)) (Comp: ?, Cost: 1) eval_nd_loop_4(Ar_0, Ar_1) -> Com_1(eval_nd_loop_5(Fresh_0, Ar_1)) (Comp: 27, Cost: 1) eval_nd_loop_5(Ar_0, Ar_1) -> Com_1(eval_nd_loop_bb1_in(Ar_0, Ar_0)) [ Ar_0 - Ar_1 <= 2 /\ Ar_0 - Ar_1 >= 1 /\ Ar_0 < 10 ] (Comp: 2, Cost: 1) eval_nd_loop_5(Ar_0, Ar_1) -> Com_1(eval_nd_loop_bb2_in(Ar_0, Ar_1)) [ Ar_0 - Ar_1 > 2 ] (Comp: 2, Cost: 1) eval_nd_loop_5(Ar_0, Ar_1) -> Com_1(eval_nd_loop_bb2_in(Ar_0, Ar_1)) [ Ar_0 - Ar_1 < 1 ] (Comp: 2, Cost: 1) eval_nd_loop_5(Ar_0, Ar_1) -> Com_1(eval_nd_loop_bb2_in(Ar_0, Ar_1)) [ Ar_0 >= 10 ] (Comp: 2, Cost: 1) eval_nd_loop_bb2_in(Ar_0, Ar_1) -> Com_1(eval_nd_loop_stop(Ar_0, Ar_1)) (Comp: 1, Cost: 0) koat_start(Ar_0, Ar_1) -> Com_1(eval_nd_loop_start(Ar_0, Ar_1)) [ 0 <= 0 ] start location: koat_start leaf cost: 0 Repeatedly propagating knowledge in problem 4 produces the following problem: 5: T: (Comp: 1, Cost: 1) eval_nd_loop_start(Ar_0, Ar_1) -> Com_1(eval_nd_loop_bb0_in(Ar_0, Ar_1)) (Comp: 1, Cost: 1) eval_nd_loop_bb0_in(Ar_0, Ar_1) -> Com_1(eval_nd_loop_0(Ar_0, Ar_1)) (Comp: 1, Cost: 1) eval_nd_loop_0(Ar_0, Ar_1) -> Com_1(eval_nd_loop_1(Ar_0, Ar_1)) (Comp: 1, Cost: 1) eval_nd_loop_1(Ar_0, Ar_1) -> Com_1(eval_nd_loop_2(Ar_0, Ar_1)) (Comp: 1, Cost: 1) eval_nd_loop_2(Ar_0, Ar_1) -> Com_1(eval_nd_loop_3(Ar_0, Ar_1)) (Comp: 1, Cost: 1) eval_nd_loop_3(Ar_0, Ar_1) -> Com_1(eval_nd_loop_bb1_in(Ar_0, 0)) (Comp: 28, Cost: 1) eval_nd_loop_bb1_in(Ar_0, Ar_1) -> Com_1(eval_nd_loop_4(Ar_0, Ar_1)) (Comp: 28, Cost: 1) eval_nd_loop_4(Ar_0, Ar_1) -> Com_1(eval_nd_loop_5(Fresh_0, Ar_1)) (Comp: 27, Cost: 1) eval_nd_loop_5(Ar_0, Ar_1) -> Com_1(eval_nd_loop_bb1_in(Ar_0, Ar_0)) [ Ar_0 - Ar_1 <= 2 /\ Ar_0 - Ar_1 >= 1 /\ Ar_0 < 10 ] (Comp: 2, Cost: 1) eval_nd_loop_5(Ar_0, Ar_1) -> Com_1(eval_nd_loop_bb2_in(Ar_0, Ar_1)) [ Ar_0 - Ar_1 > 2 ] (Comp: 2, Cost: 1) eval_nd_loop_5(Ar_0, Ar_1) -> Com_1(eval_nd_loop_bb2_in(Ar_0, Ar_1)) [ Ar_0 - Ar_1 < 1 ] (Comp: 2, Cost: 1) eval_nd_loop_5(Ar_0, Ar_1) -> Com_1(eval_nd_loop_bb2_in(Ar_0, Ar_1)) [ Ar_0 >= 10 ] (Comp: 2, Cost: 1) eval_nd_loop_bb2_in(Ar_0, Ar_1) -> Com_1(eval_nd_loop_stop(Ar_0, Ar_1)) (Comp: 1, Cost: 0) koat_start(Ar_0, Ar_1) -> Com_1(eval_nd_loop_start(Ar_0, Ar_1)) [ 0 <= 0 ] start location: koat_start leaf cost: 0 Complexity upper bound 97 Time: 0.611 sec (SMT: 0.575 sec)