3.57/1.72 WORST_CASE(NON_POLY, ?) 3.57/1.73 proof of /export/starexec/sandbox/benchmark/theBenchmark.koat 3.57/1.73 # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty 3.57/1.73 3.57/1.73 3.57/1.73 The runtime complexity of the given CpxIntTrs could be proven to be BOUNDS(INF, INF). 3.57/1.73 3.57/1.73 (0) CpxIntTrs 3.57/1.73 (1) Loat Proof [FINISHED, 114 ms] 3.57/1.73 (2) BOUNDS(INF, INF) 3.57/1.73 3.57/1.73 3.57/1.73 ---------------------------------------- 3.57/1.73 3.57/1.73 (0) 3.57/1.73 Obligation: 3.57/1.73 Complexity Int TRS consisting of the following rules: 3.57/1.73 f2(A, B, C) -> Com_1(f2(A + B, B - 2, C + 1)) :|: TRUE 3.57/1.73 f2(A, B, C) -> Com_1(f2(A + C, B, C - 2)) :|: TRUE 3.57/1.73 f0(A, B, C) -> Com_1(f2(A, B, C)) :|: A >= 0 3.57/1.73 3.57/1.73 The start-symbols are:[f0_3] 3.57/1.73 3.57/1.73 3.57/1.73 ---------------------------------------- 3.57/1.73 3.57/1.73 (1) Loat Proof (FINISHED) 3.57/1.73 3.57/1.73 3.57/1.73 ### Pre-processing the ITS problem ### 3.57/1.73 3.57/1.73 3.57/1.73 3.57/1.73 Initial linear ITS problem 3.57/1.73 3.57/1.73 Start location: f0 3.57/1.73 3.57/1.73 0: f2 -> f2 : A'=A+B, B'=-2+B, C'=1+C, [], cost: 1 3.57/1.73 3.57/1.73 1: f2 -> f2 : A'=C+A, C'=-2+C, [], cost: 1 3.57/1.73 3.57/1.73 2: f0 -> f2 : [ A>=0 ], cost: 1 3.57/1.73 3.57/1.73 3.57/1.73 3.57/1.73 ### Simplification by acceleration and chaining ### 3.57/1.73 3.57/1.73 3.57/1.73 3.57/1.73 Accelerating simple loops of location 0. 3.57/1.73 3.57/1.73 Accelerating the following rules: 3.57/1.73 3.57/1.73 0: f2 -> f2 : A'=A+B, B'=-2+B, C'=1+C, [], cost: 1 3.57/1.73 3.57/1.73 1: f2 -> f2 : A'=C+A, C'=-2+C, [], cost: 1 3.57/1.73 3.57/1.73 3.57/1.73 3.57/1.73 Accelerated rule 0 with NONTERM, yielding the new rule 3. 3.57/1.73 3.57/1.73 Accelerated rule 1 with NONTERM, yielding the new rule 4. 3.57/1.73 3.57/1.73 Removing the simple loops: 0 1. 3.57/1.73 3.57/1.73 Also removing duplicate rules:. 3.57/1.73 3.57/1.73 3.57/1.73 3.57/1.73 Accelerated all simple loops using metering functions (where possible): 3.57/1.73 3.57/1.73 Start location: f0 3.57/1.73 3.57/1.73 4: f2 -> [2] : [], cost: INF 3.57/1.73 3.57/1.73 2: f0 -> f2 : [ A>=0 ], cost: 1 3.57/1.73 3.57/1.73 3.57/1.73 3.57/1.73 Chained accelerated rules (with incoming rules): 3.57/1.73 3.57/1.73 Start location: f0 3.57/1.73 3.57/1.73 2: f0 -> f2 : [ A>=0 ], cost: 1 3.57/1.73 3.57/1.73 5: f0 -> [2] : [ A>=0 ], cost: INF 3.57/1.73 3.57/1.73 3.57/1.73 3.57/1.73 Removed unreachable locations (and leaf rules with constant cost): 3.57/1.73 3.57/1.73 Start location: f0 3.57/1.73 3.57/1.73 5: f0 -> [2] : [ A>=0 ], cost: INF 3.57/1.73 3.57/1.73 3.57/1.73 3.57/1.73 ### Computing asymptotic complexity ### 3.57/1.73 3.57/1.73 3.57/1.73 3.57/1.73 Fully simplified ITS problem 3.57/1.73 3.57/1.73 Start location: f0 3.57/1.73 3.57/1.73 5: f0 -> [2] : [ A>=0 ], cost: INF 3.57/1.73 3.57/1.73 3.57/1.73 3.57/1.73 Computing asymptotic complexity for rule 5 3.57/1.73 3.57/1.73 Resulting cost INF has complexity: Nonterm 3.57/1.73 3.57/1.73 3.57/1.73 3.57/1.73 Found new complexity Nonterm. 3.57/1.73 3.57/1.73 3.57/1.73 3.57/1.73 Obtained the following overall complexity (w.r.t. the length of the input n): 3.57/1.73 3.57/1.73 Complexity: Nonterm 3.57/1.73 3.57/1.73 Cpx degree: Nonterm 3.57/1.73 3.57/1.73 Solved cost: INF 3.57/1.73 3.57/1.73 Rule cost: INF 3.57/1.73 3.57/1.73 Rule guard: [ A>=0 ] 3.57/1.73 3.57/1.73 3.57/1.73 3.57/1.73 NO 3.57/1.73 3.57/1.73 3.57/1.73 ---------------------------------------- 3.57/1.73 3.57/1.73 (2) 3.57/1.73 BOUNDS(INF, INF) 3.57/1.75 EOF