3.57/1.97 MAYBE 3.57/1.98 proof of /export/starexec/sandbox/benchmark/theBenchmark.koat 3.57/1.98 # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty 3.57/1.98 3.57/1.98 3.57/1.98 The runtime complexity of the given CpxIntTrs could be proven to be BOUNDS(1, INF). 3.57/1.98 3.57/1.98 (0) CpxIntTrs 3.57/1.98 (1) Loat Proof [FINISHED, 208 ms] 3.57/1.98 (2) BOUNDS(1, INF) 3.57/1.98 3.57/1.98 3.57/1.98 ---------------------------------------- 3.57/1.98 3.57/1.98 (0) 3.57/1.98 Obligation: 3.57/1.98 Complexity Int TRS consisting of the following rules: 3.57/1.98 f0(A, B, C, D) -> Com_1(f6(1, C, C, D)) :|: TRUE 3.57/1.98 f6(A, B, C, D) -> Com_1(f6(A, E, C, E)) :|: B >= A + 2 && E * E >= C + 1 3.57/1.98 f6(A, B, C, D) -> Com_1(f6(E, B, C, E)) :|: B >= A + 2 && C >= E * E 3.57/1.98 f6(A, B, C, D) -> Com_1(f16(A, B, C, D)) :|: A + 1 >= B 3.57/1.98 3.57/1.98 The start-symbols are:[f0_4] 3.57/1.98 3.57/1.98 3.57/1.98 ---------------------------------------- 3.57/1.98 3.57/1.98 (1) Loat Proof (FINISHED) 3.57/1.98 3.57/1.98 3.57/1.98 ### Pre-processing the ITS problem ### 3.57/1.98 3.57/1.98 3.57/1.98 3.57/1.98 Initial linear ITS problem 3.57/1.98 3.57/1.98 Start location: f0 3.57/1.98 3.57/1.98 0: f0 -> f6 : A'=1, B'=C, [], cost: 1 3.57/1.98 3.57/1.98 1: f6 -> f6 : B'=free, D'=free, [ B>=2+A && free^2>=1+C ], cost: 1 3.57/1.98 3.57/1.98 2: f6 -> f6 : A'=free_1, D'=free_1, [ B>=2+A && C>=free_1^2 ], cost: 1 3.57/1.98 3.57/1.98 3: f6 -> f16 : [ 1+A>=B ], cost: 1 3.57/1.98 3.57/1.98 3.57/1.98 3.57/1.98 Removed unreachable and leaf rules: 3.57/1.98 3.57/1.98 Start location: f0 3.57/1.98 3.57/1.98 0: f0 -> f6 : A'=1, B'=C, [], cost: 1 3.57/1.98 3.57/1.98 1: f6 -> f6 : B'=free, D'=free, [ B>=2+A && free^2>=1+C ], cost: 1 3.57/1.98 3.57/1.98 2: f6 -> f6 : A'=free_1, D'=free_1, [ B>=2+A && C>=free_1^2 ], cost: 1 3.57/1.98 3.57/1.98 3.57/1.98 3.57/1.98 ### Simplification by acceleration and chaining ### 3.57/1.98 3.57/1.98 3.57/1.98 3.57/1.98 Accelerating simple loops of location 1. 3.57/1.98 3.57/1.98 Accelerating the following rules: 3.57/1.98 3.57/1.98 1: f6 -> f6 : B'=free, D'=free, [ B>=2+A && free^2>=1+C ], cost: 1 3.57/1.98 3.57/1.98 2: f6 -> f6 : A'=free_1, D'=free_1, [ B>=2+A && C>=free_1^2 ], cost: 1 3.57/1.98 3.57/1.98 3.57/1.98 3.57/1.98 Found no metering function for rule 1 (rule is too complicated). 3.57/1.98 3.57/1.98 Found no metering function for rule 2 (rule is too complicated). 3.57/1.98 3.57/1.98 Removing the simple loops:. 3.57/1.98 3.57/1.98 3.57/1.98 3.57/1.98 Accelerated all simple loops using metering functions (where possible): 3.57/1.98 3.57/1.98 Start location: f0 3.57/1.98 3.57/1.98 0: f0 -> f6 : A'=1, B'=C, [], cost: 1 3.57/1.98 3.57/1.98 1: f6 -> f6 : B'=free, D'=free, [ B>=2+A && free^2>=1+C ], cost: 1 3.57/1.98 3.57/1.98 2: f6 -> f6 : A'=free_1, D'=free_1, [ B>=2+A && C>=free_1^2 ], cost: 1 3.57/1.98 3.57/1.98 3.57/1.98 3.57/1.98 Chained accelerated rules (with incoming rules): 3.57/1.98 3.57/1.98 Start location: f0 3.57/1.98 3.57/1.98 0: f0 -> f6 : A'=1, B'=C, [], cost: 1 3.57/1.98 3.57/1.98 4: f0 -> f6 : A'=1, B'=free, D'=free, [ C>=3 && free^2>=1+C ], cost: 2 3.57/1.98 3.57/1.98 5: f0 -> f6 : A'=free_1, B'=C, D'=free_1, [ C>=3 && C>=free_1^2 ], cost: 2 3.57/1.98 3.57/1.98 3.57/1.98 3.57/1.98 Removed unreachable locations (and leaf rules with constant cost): 3.57/1.98 3.57/1.98 Start location: f0 3.57/1.98 3.57/1.98 3.57/1.98 3.57/1.98 ### Computing asymptotic complexity ### 3.57/1.98 3.57/1.98 3.57/1.98 3.57/1.98 Fully simplified ITS problem 3.57/1.98 3.57/1.98 Start location: f0 3.57/1.98 3.57/1.98 3.57/1.98 3.57/1.98 Obtained the following overall complexity (w.r.t. the length of the input n): 3.57/1.98 3.57/1.98 Complexity: Unknown 3.57/1.98 3.57/1.98 Cpx degree: ? 3.57/1.98 3.57/1.98 Solved cost: 0 3.57/1.98 3.57/1.98 Rule cost: 0 3.57/1.98 3.57/1.98 Rule guard: [] 3.57/1.98 3.57/1.98 3.57/1.98 3.57/1.98 WORST_CASE(Omega(0),?) 3.57/1.98 3.57/1.98 3.57/1.98 ---------------------------------------- 3.57/1.98 3.57/1.98 (2) 3.57/1.98 BOUNDS(1, INF) 3.85/2.00 EOF