2.49/1.44 WORST_CASE(?, O(n^2)) 2.49/1.45 proof of /export/starexec/sandbox/output/output_files/bench.koat 2.49/1.45 # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty 2.49/1.45 2.49/1.45 2.49/1.45 The runtime complexity of the given CpxIntTrs could be proven to be BOUNDS(1, n^2). 2.49/1.45 2.49/1.45 (0) CpxIntTrs 2.49/1.45 (1) Koat Proof [FINISHED, 179 ms] 2.49/1.45 (2) BOUNDS(1, n^2) 2.49/1.45 2.49/1.45 2.49/1.45 ---------------------------------------- 2.49/1.45 2.49/1.45 (0) 2.49/1.45 Obligation: 2.49/1.45 Complexity Int TRS consisting of the following rules: 2.49/1.45 eval_cousot9_start(v_.0, v_N, v_i.0, v_j) -> Com_1(eval_cousot9_bb0_in(v_.0, v_N, v_i.0, v_j)) :|: TRUE 2.49/1.45 eval_cousot9_bb0_in(v_.0, v_N, v_i.0, v_j) -> Com_1(eval_cousot9_bb1_in(v_j, v_N, v_N, v_j)) :|: TRUE 2.49/1.45 eval_cousot9_bb1_in(v_.0, v_N, v_i.0, v_j) -> Com_1(eval_cousot9_bb2_in(v_.0, v_N, v_i.0, v_j)) :|: v_i.0 > 0 2.49/1.45 eval_cousot9_bb1_in(v_.0, v_N, v_i.0, v_j) -> Com_1(eval_cousot9_bb3_in(v_.0, v_N, v_i.0, v_j)) :|: v_i.0 <= 0 2.49/1.45 eval_cousot9_bb2_in(v_.0, v_N, v_i.0, v_j) -> Com_1(eval_cousot9_bb1_in(v_.0 - 1, v_N, v_i.0, v_j)) :|: v_.0 > 0 2.49/1.45 eval_cousot9_bb2_in(v_.0, v_N, v_i.0, v_j) -> Com_1(eval_cousot9_bb1_in(v_N, v_N, v_i.0, v_j)) :|: v_.0 > 0 && v_.0 <= 0 2.49/1.45 eval_cousot9_bb2_in(v_.0, v_N, v_i.0, v_j) -> Com_1(eval_cousot9_bb1_in(v_.0 - 1, v_N, v_i.0 - 1, v_j)) :|: v_.0 <= 0 && v_.0 > 0 2.49/1.45 eval_cousot9_bb2_in(v_.0, v_N, v_i.0, v_j) -> Com_1(eval_cousot9_bb1_in(v_N, v_N, v_i.0 - 1, v_j)) :|: v_.0 <= 0 2.49/1.45 eval_cousot9_bb3_in(v_.0, v_N, v_i.0, v_j) -> Com_1(eval_cousot9_stop(v_.0, v_N, v_i.0, v_j)) :|: TRUE 2.49/1.45 2.49/1.45 The start-symbols are:[eval_cousot9_start_4] 2.49/1.45 2.49/1.45 2.49/1.45 ---------------------------------------- 2.49/1.45 2.49/1.45 (1) Koat Proof (FINISHED) 2.49/1.45 YES(?, 2*ar_3 + 2*ar_3^2 + 2*ar_1 + 7) 2.49/1.45 2.49/1.45 2.49/1.45 2.49/1.45 Initial complexity problem: 2.49/1.45 2.49/1.45 1: T: 2.49/1.45 2.49/1.45 (Comp: ?, Cost: 1) evalcousot9start(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9bb0in(ar_0, ar_1, ar_2, ar_3)) 2.49/1.45 2.49/1.45 (Comp: ?, Cost: 1) evalcousot9bb0in(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9bb1in(ar_1, ar_1, ar_3, ar_3)) 2.49/1.45 2.49/1.45 (Comp: ?, Cost: 1) evalcousot9bb1in(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9bb2in(ar_0, ar_1, ar_2, ar_3)) [ ar_2 >= 1 ] 2.49/1.45 2.49/1.45 (Comp: ?, Cost: 1) evalcousot9bb1in(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9bb3in(ar_0, ar_1, ar_2, ar_3)) [ 0 >= ar_2 ] 2.49/1.45 2.49/1.45 (Comp: ?, Cost: 1) evalcousot9bb2in(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9bb1in(ar_0 - 1, ar_1, ar_2, ar_3)) [ ar_0 >= 1 ] 2.49/1.45 2.49/1.45 (Comp: ?, Cost: 1) evalcousot9bb2in(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9bb1in(ar_3, ar_1, ar_2, ar_3)) [ ar_0 >= 1 /\ 0 >= ar_0 ] 2.49/1.45 2.49/1.45 (Comp: ?, Cost: 1) evalcousot9bb2in(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9bb1in(ar_0 - 1, ar_1, ar_2 - 1, ar_3)) [ 0 >= ar_0 /\ ar_0 >= 1 ] 2.49/1.45 2.49/1.45 (Comp: ?, Cost: 1) evalcousot9bb2in(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9bb1in(ar_3, ar_1, ar_2 - 1, ar_3)) [ 0 >= ar_0 ] 2.49/1.45 2.49/1.45 (Comp: ?, Cost: 1) evalcousot9bb3in(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9stop(ar_0, ar_1, ar_2, ar_3)) 2.49/1.45 2.49/1.45 (Comp: 1, Cost: 0) koat_start(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9start(ar_0, ar_1, ar_2, ar_3)) [ 0 <= 0 ] 2.49/1.45 2.49/1.45 start location: koat_start 2.49/1.45 2.49/1.45 leaf cost: 0 2.49/1.45 2.49/1.45 2.49/1.45 2.49/1.45 Testing for reachability in the complexity graph removes the following transitions from problem 1: 2.49/1.45 2.49/1.45 evalcousot9bb2in(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9bb1in(ar_3, ar_1, ar_2, ar_3)) [ ar_0 >= 1 /\ 0 >= ar_0 ] 2.49/1.45 2.49/1.45 evalcousot9bb2in(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9bb1in(ar_0 - 1, ar_1, ar_2 - 1, ar_3)) [ 0 >= ar_0 /\ ar_0 >= 1 ] 2.49/1.45 2.49/1.45 We thus obtain the following problem: 2.49/1.45 2.49/1.45 2: T: 2.49/1.45 2.49/1.45 (Comp: ?, Cost: 1) evalcousot9bb3in(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9stop(ar_0, ar_1, ar_2, ar_3)) 2.49/1.45 2.49/1.45 (Comp: ?, Cost: 1) evalcousot9bb2in(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9bb1in(ar_3, ar_1, ar_2 - 1, ar_3)) [ 0 >= ar_0 ] 2.49/1.45 2.49/1.45 (Comp: ?, Cost: 1) evalcousot9bb2in(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9bb1in(ar_0 - 1, ar_1, ar_2, ar_3)) [ ar_0 >= 1 ] 2.49/1.45 2.49/1.45 (Comp: ?, Cost: 1) evalcousot9bb1in(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9bb3in(ar_0, ar_1, ar_2, ar_3)) [ 0 >= ar_2 ] 2.49/1.45 2.49/1.45 (Comp: ?, Cost: 1) evalcousot9bb1in(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9bb2in(ar_0, ar_1, ar_2, ar_3)) [ ar_2 >= 1 ] 2.49/1.45 2.49/1.45 (Comp: ?, Cost: 1) evalcousot9bb0in(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9bb1in(ar_1, ar_1, ar_3, ar_3)) 2.49/1.45 2.49/1.45 (Comp: ?, Cost: 1) evalcousot9start(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9bb0in(ar_0, ar_1, ar_2, ar_3)) 2.49/1.45 2.49/1.45 (Comp: 1, Cost: 0) koat_start(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9start(ar_0, ar_1, ar_2, ar_3)) [ 0 <= 0 ] 2.49/1.45 2.49/1.45 start location: koat_start 2.49/1.45 2.49/1.45 leaf cost: 0 2.49/1.45 2.49/1.45 2.49/1.45 2.49/1.45 Repeatedly propagating knowledge in problem 2 produces the following problem: 2.49/1.45 2.49/1.45 3: T: 2.49/1.45 2.49/1.45 (Comp: ?, Cost: 1) evalcousot9bb3in(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9stop(ar_0, ar_1, ar_2, ar_3)) 2.49/1.45 2.49/1.45 (Comp: ?, Cost: 1) evalcousot9bb2in(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9bb1in(ar_3, ar_1, ar_2 - 1, ar_3)) [ 0 >= ar_0 ] 2.49/1.45 2.49/1.45 (Comp: ?, Cost: 1) evalcousot9bb2in(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9bb1in(ar_0 - 1, ar_1, ar_2, ar_3)) [ ar_0 >= 1 ] 2.49/1.45 2.49/1.45 (Comp: ?, Cost: 1) evalcousot9bb1in(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9bb3in(ar_0, ar_1, ar_2, ar_3)) [ 0 >= ar_2 ] 2.49/1.45 2.49/1.45 (Comp: ?, Cost: 1) evalcousot9bb1in(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9bb2in(ar_0, ar_1, ar_2, ar_3)) [ ar_2 >= 1 ] 2.49/1.45 2.49/1.45 (Comp: 1, Cost: 1) evalcousot9bb0in(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9bb1in(ar_1, ar_1, ar_3, ar_3)) 2.49/1.45 2.49/1.45 (Comp: 1, Cost: 1) evalcousot9start(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9bb0in(ar_0, ar_1, ar_2, ar_3)) 2.49/1.45 2.49/1.45 (Comp: 1, Cost: 0) koat_start(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9start(ar_0, ar_1, ar_2, ar_3)) [ 0 <= 0 ] 2.49/1.45 2.49/1.45 start location: koat_start 2.49/1.45 2.49/1.45 leaf cost: 0 2.49/1.45 2.49/1.45 2.49/1.45 2.49/1.45 A polynomial rank function with 2.49/1.45 2.49/1.45 Pol(evalcousot9bb3in) = 1 2.49/1.45 2.49/1.45 Pol(evalcousot9stop) = 0 2.49/1.45 2.49/1.45 Pol(evalcousot9bb2in) = 2 2.49/1.45 2.49/1.45 Pol(evalcousot9bb1in) = 2 2.49/1.45 2.49/1.45 Pol(evalcousot9bb0in) = 2 2.49/1.45 2.49/1.45 Pol(evalcousot9start) = 2 2.49/1.45 2.49/1.45 Pol(koat_start) = 2 2.49/1.45 2.49/1.45 orients all transitions weakly and the transitions 2.49/1.45 2.49/1.45 evalcousot9bb3in(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9stop(ar_0, ar_1, ar_2, ar_3)) 2.49/1.45 2.49/1.45 evalcousot9bb1in(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9bb3in(ar_0, ar_1, ar_2, ar_3)) [ 0 >= ar_2 ] 2.49/1.45 2.49/1.45 strictly and produces the following problem: 2.49/1.45 2.49/1.45 4: T: 2.49/1.45 2.49/1.45 (Comp: 2, Cost: 1) evalcousot9bb3in(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9stop(ar_0, ar_1, ar_2, ar_3)) 2.49/1.45 2.49/1.45 (Comp: ?, Cost: 1) evalcousot9bb2in(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9bb1in(ar_3, ar_1, ar_2 - 1, ar_3)) [ 0 >= ar_0 ] 2.49/1.45 2.49/1.45 (Comp: ?, Cost: 1) evalcousot9bb2in(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9bb1in(ar_0 - 1, ar_1, ar_2, ar_3)) [ ar_0 >= 1 ] 2.49/1.45 2.49/1.45 (Comp: 2, Cost: 1) evalcousot9bb1in(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9bb3in(ar_0, ar_1, ar_2, ar_3)) [ 0 >= ar_2 ] 2.49/1.45 2.49/1.45 (Comp: ?, Cost: 1) evalcousot9bb1in(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9bb2in(ar_0, ar_1, ar_2, ar_3)) [ ar_2 >= 1 ] 2.49/1.45 2.49/1.45 (Comp: 1, Cost: 1) evalcousot9bb0in(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9bb1in(ar_1, ar_1, ar_3, ar_3)) 2.49/1.45 2.49/1.45 (Comp: 1, Cost: 1) evalcousot9start(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9bb0in(ar_0, ar_1, ar_2, ar_3)) 2.49/1.45 2.49/1.45 (Comp: 1, Cost: 0) koat_start(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9start(ar_0, ar_1, ar_2, ar_3)) [ 0 <= 0 ] 2.49/1.45 2.49/1.45 start location: koat_start 2.49/1.45 2.49/1.45 leaf cost: 0 2.49/1.45 2.49/1.45 2.49/1.45 2.49/1.45 Applied AI with 'oct' on problem 4 to obtain the following invariants: 2.49/1.45 2.49/1.45 For symbol evalcousot9bb1in: -X_3 + X_4 >= 0 2.49/1.45 2.49/1.45 For symbol evalcousot9bb2in: X_4 - 1 >= 0 /\ X_3 + X_4 - 2 >= 0 /\ -X_3 + X_4 >= 0 /\ X_3 - 1 >= 0 2.49/1.45 2.49/1.45 For symbol evalcousot9bb3in: -X_3 + X_4 >= 0 /\ -X_3 >= 0 2.49/1.45 2.49/1.45 2.49/1.45 2.49/1.45 2.49/1.45 2.49/1.45 This yielded the following problem: 2.49/1.45 2.49/1.45 5: T: 2.49/1.45 2.49/1.45 (Comp: 1, Cost: 0) koat_start(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9start(ar_0, ar_1, ar_2, ar_3)) [ 0 <= 0 ] 2.49/1.45 2.49/1.45 (Comp: 1, Cost: 1) evalcousot9start(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9bb0in(ar_0, ar_1, ar_2, ar_3)) 2.49/1.45 2.49/1.45 (Comp: 1, Cost: 1) evalcousot9bb0in(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9bb1in(ar_1, ar_1, ar_3, ar_3)) 2.49/1.45 2.49/1.45 (Comp: ?, Cost: 1) evalcousot9bb1in(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9bb2in(ar_0, ar_1, ar_2, ar_3)) [ -ar_2 + ar_3 >= 0 /\ ar_2 >= 1 ] 2.49/1.45 2.49/1.45 (Comp: 2, Cost: 1) evalcousot9bb1in(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9bb3in(ar_0, ar_1, ar_2, ar_3)) [ -ar_2 + ar_3 >= 0 /\ 0 >= ar_2 ] 2.49/1.45 2.49/1.45 (Comp: ?, Cost: 1) evalcousot9bb2in(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9bb1in(ar_0 - 1, ar_1, ar_2, ar_3)) [ ar_3 - 1 >= 0 /\ ar_2 + ar_3 - 2 >= 0 /\ -ar_2 + ar_3 >= 0 /\ ar_2 - 1 >= 0 /\ ar_0 >= 1 ] 2.49/1.45 2.49/1.45 (Comp: ?, Cost: 1) evalcousot9bb2in(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9bb1in(ar_3, ar_1, ar_2 - 1, ar_3)) [ ar_3 - 1 >= 0 /\ ar_2 + ar_3 - 2 >= 0 /\ -ar_2 + ar_3 >= 0 /\ ar_2 - 1 >= 0 /\ 0 >= ar_0 ] 2.49/1.45 2.49/1.45 (Comp: 2, Cost: 1) evalcousot9bb3in(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9stop(ar_0, ar_1, ar_2, ar_3)) [ -ar_2 + ar_3 >= 0 /\ -ar_2 >= 0 ] 2.49/1.45 2.49/1.45 start location: koat_start 2.49/1.45 2.49/1.45 leaf cost: 0 2.49/1.45 2.49/1.45 2.49/1.45 2.49/1.45 A polynomial rank function with 2.49/1.45 2.49/1.45 Pol(koat_start) = V_4 2.49/1.45 2.49/1.45 Pol(evalcousot9start) = V_4 2.49/1.45 2.49/1.45 Pol(evalcousot9bb0in) = V_4 2.49/1.45 2.49/1.45 Pol(evalcousot9bb1in) = V_3 2.49/1.45 2.49/1.45 Pol(evalcousot9bb2in) = V_3 2.49/1.45 2.49/1.45 Pol(evalcousot9bb3in) = V_3 2.49/1.45 2.49/1.45 Pol(evalcousot9stop) = V_3 2.49/1.45 2.49/1.45 orients all transitions weakly and the transition 2.49/1.45 2.49/1.45 evalcousot9bb2in(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9bb1in(ar_3, ar_1, ar_2 - 1, ar_3)) [ ar_3 - 1 >= 0 /\ ar_2 + ar_3 - 2 >= 0 /\ -ar_2 + ar_3 >= 0 /\ ar_2 - 1 >= 0 /\ 0 >= ar_0 ] 2.49/1.45 2.49/1.45 strictly and produces the following problem: 2.49/1.45 2.49/1.45 6: T: 2.49/1.45 2.49/1.45 (Comp: 1, Cost: 0) koat_start(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9start(ar_0, ar_1, ar_2, ar_3)) [ 0 <= 0 ] 2.49/1.45 2.49/1.45 (Comp: 1, Cost: 1) evalcousot9start(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9bb0in(ar_0, ar_1, ar_2, ar_3)) 2.49/1.45 2.49/1.45 (Comp: 1, Cost: 1) evalcousot9bb0in(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9bb1in(ar_1, ar_1, ar_3, ar_3)) 2.49/1.45 2.49/1.45 (Comp: ?, Cost: 1) evalcousot9bb1in(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9bb2in(ar_0, ar_1, ar_2, ar_3)) [ -ar_2 + ar_3 >= 0 /\ ar_2 >= 1 ] 2.49/1.45 2.49/1.45 (Comp: 2, Cost: 1) evalcousot9bb1in(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9bb3in(ar_0, ar_1, ar_2, ar_3)) [ -ar_2 + ar_3 >= 0 /\ 0 >= ar_2 ] 2.49/1.45 2.49/1.45 (Comp: ?, Cost: 1) evalcousot9bb2in(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9bb1in(ar_0 - 1, ar_1, ar_2, ar_3)) [ ar_3 - 1 >= 0 /\ ar_2 + ar_3 - 2 >= 0 /\ -ar_2 + ar_3 >= 0 /\ ar_2 - 1 >= 0 /\ ar_0 >= 1 ] 2.49/1.45 2.49/1.45 (Comp: ar_3, Cost: 1) evalcousot9bb2in(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9bb1in(ar_3, ar_1, ar_2 - 1, ar_3)) [ ar_3 - 1 >= 0 /\ ar_2 + ar_3 - 2 >= 0 /\ -ar_2 + ar_3 >= 0 /\ ar_2 - 1 >= 0 /\ 0 >= ar_0 ] 2.49/1.45 2.49/1.45 (Comp: 2, Cost: 1) evalcousot9bb3in(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9stop(ar_0, ar_1, ar_2, ar_3)) [ -ar_2 + ar_3 >= 0 /\ -ar_2 >= 0 ] 2.49/1.45 2.49/1.45 start location: koat_start 2.49/1.45 2.49/1.45 leaf cost: 0 2.49/1.45 2.49/1.45 2.49/1.45 2.49/1.45 A polynomial rank function with 2.49/1.45 2.49/1.45 Pol(evalcousot9bb2in) = V_1 2.49/1.45 2.49/1.45 Pol(evalcousot9bb1in) = V_1 2.49/1.45 2.49/1.45 and size complexities 2.49/1.45 2.49/1.45 S("evalcousot9bb3in(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9stop(ar_0, ar_1, ar_2, ar_3)) [ -ar_2 + ar_3 >= 0 /\\ -ar_2 >= 0 ]", 0-0) = ar_1 + ar_3 2.49/1.45 2.49/1.45 S("evalcousot9bb3in(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9stop(ar_0, ar_1, ar_2, ar_3)) [ -ar_2 + ar_3 >= 0 /\\ -ar_2 >= 0 ]", 0-1) = ar_1 2.49/1.45 2.49/1.45 S("evalcousot9bb3in(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9stop(ar_0, ar_1, ar_2, ar_3)) [ -ar_2 + ar_3 >= 0 /\\ -ar_2 >= 0 ]", 0-2) = ar_3 2.49/1.45 2.49/1.45 S("evalcousot9bb3in(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9stop(ar_0, ar_1, ar_2, ar_3)) [ -ar_2 + ar_3 >= 0 /\\ -ar_2 >= 0 ]", 0-3) = ar_3 2.49/1.45 2.49/1.45 S("evalcousot9bb2in(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9bb1in(ar_3, ar_1, ar_2 - 1, ar_3)) [ ar_3 - 1 >= 0 /\\ ar_2 + ar_3 - 2 >= 0 /\\ -ar_2 + ar_3 >= 0 /\\ ar_2 - 1 >= 0 /\\ 0 >= ar_0 ]", 0-0) = ar_3 2.49/1.45 2.49/1.45 S("evalcousot9bb2in(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9bb1in(ar_3, ar_1, ar_2 - 1, ar_3)) [ ar_3 - 1 >= 0 /\\ ar_2 + ar_3 - 2 >= 0 /\\ -ar_2 + ar_3 >= 0 /\\ ar_2 - 1 >= 0 /\\ 0 >= ar_0 ]", 0-1) = ar_1 2.49/1.45 2.49/1.45 S("evalcousot9bb2in(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9bb1in(ar_3, ar_1, ar_2 - 1, ar_3)) [ ar_3 - 1 >= 0 /\\ ar_2 + ar_3 - 2 >= 0 /\\ -ar_2 + ar_3 >= 0 /\\ ar_2 - 1 >= 0 /\\ 0 >= ar_0 ]", 0-2) = ar_3 2.49/1.45 2.49/1.45 S("evalcousot9bb2in(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9bb1in(ar_3, ar_1, ar_2 - 1, ar_3)) [ ar_3 - 1 >= 0 /\\ ar_2 + ar_3 - 2 >= 0 /\\ -ar_2 + ar_3 >= 0 /\\ ar_2 - 1 >= 0 /\\ 0 >= ar_0 ]", 0-3) = ar_3 2.49/1.45 2.49/1.45 S("evalcousot9bb2in(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9bb1in(ar_0 - 1, ar_1, ar_2, ar_3)) [ ar_3 - 1 >= 0 /\\ ar_2 + ar_3 - 2 >= 0 /\\ -ar_2 + ar_3 >= 0 /\\ ar_2 - 1 >= 0 /\\ ar_0 >= 1 ]", 0-0) = ar_1 + ar_3 2.49/1.45 2.49/1.45 S("evalcousot9bb2in(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9bb1in(ar_0 - 1, ar_1, ar_2, ar_3)) [ ar_3 - 1 >= 0 /\\ ar_2 + ar_3 - 2 >= 0 /\\ -ar_2 + ar_3 >= 0 /\\ ar_2 - 1 >= 0 /\\ ar_0 >= 1 ]", 0-1) = ar_1 2.49/1.45 2.49/1.45 S("evalcousot9bb2in(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9bb1in(ar_0 - 1, ar_1, ar_2, ar_3)) [ ar_3 - 1 >= 0 /\\ ar_2 + ar_3 - 2 >= 0 /\\ -ar_2 + ar_3 >= 0 /\\ ar_2 - 1 >= 0 /\\ ar_0 >= 1 ]", 0-2) = ar_3 2.49/1.45 2.49/1.45 S("evalcousot9bb2in(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9bb1in(ar_0 - 1, ar_1, ar_2, ar_3)) [ ar_3 - 1 >= 0 /\\ ar_2 + ar_3 - 2 >= 0 /\\ -ar_2 + ar_3 >= 0 /\\ ar_2 - 1 >= 0 /\\ ar_0 >= 1 ]", 0-3) = ar_3 2.49/1.45 2.49/1.45 S("evalcousot9bb1in(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9bb3in(ar_0, ar_1, ar_2, ar_3)) [ -ar_2 + ar_3 >= 0 /\\ 0 >= ar_2 ]", 0-0) = ar_1 + ar_3 2.49/1.45 2.49/1.45 S("evalcousot9bb1in(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9bb3in(ar_0, ar_1, ar_2, ar_3)) [ -ar_2 + ar_3 >= 0 /\\ 0 >= ar_2 ]", 0-1) = ar_1 2.49/1.45 2.49/1.45 S("evalcousot9bb1in(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9bb3in(ar_0, ar_1, ar_2, ar_3)) [ -ar_2 + ar_3 >= 0 /\\ 0 >= ar_2 ]", 0-2) = ar_3 2.49/1.45 2.49/1.45 S("evalcousot9bb1in(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9bb3in(ar_0, ar_1, ar_2, ar_3)) [ -ar_2 + ar_3 >= 0 /\\ 0 >= ar_2 ]", 0-3) = ar_3 2.49/1.45 2.49/1.45 S("evalcousot9bb1in(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9bb2in(ar_0, ar_1, ar_2, ar_3)) [ -ar_2 + ar_3 >= 0 /\\ ar_2 >= 1 ]", 0-0) = ar_1 + ar_3 2.49/1.45 2.49/1.45 S("evalcousot9bb1in(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9bb2in(ar_0, ar_1, ar_2, ar_3)) [ -ar_2 + ar_3 >= 0 /\\ ar_2 >= 1 ]", 0-1) = ar_1 2.49/1.45 2.49/1.45 S("evalcousot9bb1in(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9bb2in(ar_0, ar_1, ar_2, ar_3)) [ -ar_2 + ar_3 >= 0 /\\ ar_2 >= 1 ]", 0-2) = ar_3 2.49/1.45 2.49/1.45 S("evalcousot9bb1in(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9bb2in(ar_0, ar_1, ar_2, ar_3)) [ -ar_2 + ar_3 >= 0 /\\ ar_2 >= 1 ]", 0-3) = ar_3 2.49/1.45 2.49/1.45 S("evalcousot9bb0in(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9bb1in(ar_1, ar_1, ar_3, ar_3))", 0-0) = ar_1 2.49/1.45 2.49/1.45 S("evalcousot9bb0in(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9bb1in(ar_1, ar_1, ar_3, ar_3))", 0-1) = ar_1 2.49/1.45 2.49/1.45 S("evalcousot9bb0in(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9bb1in(ar_1, ar_1, ar_3, ar_3))", 0-2) = ar_3 2.49/1.45 2.49/1.45 S("evalcousot9bb0in(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9bb1in(ar_1, ar_1, ar_3, ar_3))", 0-3) = ar_3 2.49/1.45 2.49/1.45 S("evalcousot9start(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9bb0in(ar_0, ar_1, ar_2, ar_3))", 0-0) = ar_0 2.49/1.45 2.49/1.45 S("evalcousot9start(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9bb0in(ar_0, ar_1, ar_2, ar_3))", 0-1) = ar_1 2.49/1.45 2.49/1.45 S("evalcousot9start(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9bb0in(ar_0, ar_1, ar_2, ar_3))", 0-2) = ar_2 2.49/1.45 2.49/1.45 S("evalcousot9start(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9bb0in(ar_0, ar_1, ar_2, ar_3))", 0-3) = ar_3 2.49/1.45 2.49/1.45 S("koat_start(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9start(ar_0, ar_1, ar_2, ar_3)) [ 0 <= 0 ]", 0-0) = ar_0 2.49/1.45 2.49/1.45 S("koat_start(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9start(ar_0, ar_1, ar_2, ar_3)) [ 0 <= 0 ]", 0-1) = ar_1 2.49/1.45 2.49/1.45 S("koat_start(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9start(ar_0, ar_1, ar_2, ar_3)) [ 0 <= 0 ]", 0-2) = ar_2 2.49/1.45 2.49/1.45 S("koat_start(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9start(ar_0, ar_1, ar_2, ar_3)) [ 0 <= 0 ]", 0-3) = ar_3 2.49/1.45 2.49/1.45 orients the transitions 2.49/1.45 2.49/1.45 evalcousot9bb2in(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9bb1in(ar_0 - 1, ar_1, ar_2, ar_3)) [ ar_3 - 1 >= 0 /\ ar_2 + ar_3 - 2 >= 0 /\ -ar_2 + ar_3 >= 0 /\ ar_2 - 1 >= 0 /\ ar_0 >= 1 ] 2.49/1.45 2.49/1.45 evalcousot9bb1in(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9bb2in(ar_0, ar_1, ar_2, ar_3)) [ -ar_2 + ar_3 >= 0 /\ ar_2 >= 1 ] 2.49/1.45 2.49/1.45 weakly and the transition 2.49/1.45 2.49/1.45 evalcousot9bb2in(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9bb1in(ar_0 - 1, ar_1, ar_2, ar_3)) [ ar_3 - 1 >= 0 /\ ar_2 + ar_3 - 2 >= 0 /\ -ar_2 + ar_3 >= 0 /\ ar_2 - 1 >= 0 /\ ar_0 >= 1 ] 2.49/1.45 2.49/1.45 strictly and produces the following problem: 2.49/1.45 2.49/1.45 7: T: 2.49/1.45 2.49/1.45 (Comp: 1, Cost: 0) koat_start(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9start(ar_0, ar_1, ar_2, ar_3)) [ 0 <= 0 ] 2.49/1.45 2.49/1.45 (Comp: 1, Cost: 1) evalcousot9start(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9bb0in(ar_0, ar_1, ar_2, ar_3)) 2.49/1.45 2.49/1.45 (Comp: 1, Cost: 1) evalcousot9bb0in(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9bb1in(ar_1, ar_1, ar_3, ar_3)) 2.49/1.45 2.49/1.45 (Comp: ?, Cost: 1) evalcousot9bb1in(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9bb2in(ar_0, ar_1, ar_2, ar_3)) [ -ar_2 + ar_3 >= 0 /\ ar_2 >= 1 ] 2.49/1.45 2.49/1.45 (Comp: 2, Cost: 1) evalcousot9bb1in(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9bb3in(ar_0, ar_1, ar_2, ar_3)) [ -ar_2 + ar_3 >= 0 /\ 0 >= ar_2 ] 2.49/1.45 2.49/1.45 (Comp: ar_3^2 + ar_1, Cost: 1) evalcousot9bb2in(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9bb1in(ar_0 - 1, ar_1, ar_2, ar_3)) [ ar_3 - 1 >= 0 /\ ar_2 + ar_3 - 2 >= 0 /\ -ar_2 + ar_3 >= 0 /\ ar_2 - 1 >= 0 /\ ar_0 >= 1 ] 2.49/1.45 2.49/1.45 (Comp: ar_3, Cost: 1) evalcousot9bb2in(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9bb1in(ar_3, ar_1, ar_2 - 1, ar_3)) [ ar_3 - 1 >= 0 /\ ar_2 + ar_3 - 2 >= 0 /\ -ar_2 + ar_3 >= 0 /\ ar_2 - 1 >= 0 /\ 0 >= ar_0 ] 2.49/1.45 2.49/1.45 (Comp: 2, Cost: 1) evalcousot9bb3in(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9stop(ar_0, ar_1, ar_2, ar_3)) [ -ar_2 + ar_3 >= 0 /\ -ar_2 >= 0 ] 2.49/1.45 2.49/1.45 start location: koat_start 2.49/1.45 2.49/1.45 leaf cost: 0 2.49/1.45 2.49/1.45 2.49/1.45 2.49/1.45 Repeatedly propagating knowledge in problem 7 produces the following problem: 2.49/1.45 2.49/1.45 8: T: 2.49/1.45 2.49/1.45 (Comp: 1, Cost: 0) koat_start(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9start(ar_0, ar_1, ar_2, ar_3)) [ 0 <= 0 ] 2.49/1.45 2.49/1.45 (Comp: 1, Cost: 1) evalcousot9start(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9bb0in(ar_0, ar_1, ar_2, ar_3)) 2.49/1.45 2.49/1.45 (Comp: 1, Cost: 1) evalcousot9bb0in(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9bb1in(ar_1, ar_1, ar_3, ar_3)) 2.49/1.45 2.49/1.45 (Comp: ar_3 + ar_3^2 + ar_1 + 1, Cost: 1) evalcousot9bb1in(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9bb2in(ar_0, ar_1, ar_2, ar_3)) [ -ar_2 + ar_3 >= 0 /\ ar_2 >= 1 ] 2.49/1.45 2.49/1.45 (Comp: 2, Cost: 1) evalcousot9bb1in(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9bb3in(ar_0, ar_1, ar_2, ar_3)) [ -ar_2 + ar_3 >= 0 /\ 0 >= ar_2 ] 2.49/1.45 2.49/1.45 (Comp: ar_3^2 + ar_1, Cost: 1) evalcousot9bb2in(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9bb1in(ar_0 - 1, ar_1, ar_2, ar_3)) [ ar_3 - 1 >= 0 /\ ar_2 + ar_3 - 2 >= 0 /\ -ar_2 + ar_3 >= 0 /\ ar_2 - 1 >= 0 /\ ar_0 >= 1 ] 2.49/1.45 2.49/1.45 (Comp: ar_3, Cost: 1) evalcousot9bb2in(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9bb1in(ar_3, ar_1, ar_2 - 1, ar_3)) [ ar_3 - 1 >= 0 /\ ar_2 + ar_3 - 2 >= 0 /\ -ar_2 + ar_3 >= 0 /\ ar_2 - 1 >= 0 /\ 0 >= ar_0 ] 2.49/1.45 2.49/1.45 (Comp: 2, Cost: 1) evalcousot9bb3in(ar_0, ar_1, ar_2, ar_3) -> Com_1(evalcousot9stop(ar_0, ar_1, ar_2, ar_3)) [ -ar_2 + ar_3 >= 0 /\ -ar_2 >= 0 ] 2.49/1.45 2.49/1.45 start location: koat_start 2.49/1.45 2.49/1.45 leaf cost: 0 2.49/1.45 2.49/1.45 2.49/1.45 2.49/1.45 Complexity upper bound 2*ar_3 + 2*ar_3^2 + 2*ar_1 + 7 2.49/1.45 2.49/1.45 2.49/1.45 2.49/1.45 Time: 0.210 sec (SMT: 0.188 sec) 2.49/1.45 2.49/1.45 2.49/1.45 ---------------------------------------- 2.49/1.45 2.49/1.45 (2) 2.49/1.45 BOUNDS(1, n^2) 2.49/1.48 EOF