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Complexity_ITS 2019-03-21 04.46 pair #429990942
details
property
value
status
complete
benchmark
poly1.koat
ran by
Akihisa Yamada
cpu timeout
1200 seconds
wallclock timeout
300 seconds
memory limit
137438953472 bytes
execution host
n002.star.cs.uiowa.edu
space
VMCAI05
run statistics
property
value
solver
AProVE
configuration
complexity
runtime (wallclock)
16.6912 seconds
cpu usage
20.8565
user time
20.2764
system time
0.580109
max virtual memory
1.8764096E7
max residence set size
264292.0
stage attributes
key
value
starexec-result
MAYBE
output
20.75/16.42 MAYBE 20.75/16.43 proof of /export/starexec/sandbox/benchmark/theBenchmark.koat 20.75/16.43 # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty 20.75/16.43 20.75/16.43 20.75/16.43 The runtime complexity of the given CpxIntTrs could be proven to be BOUNDS(1, INF). 20.75/16.43 20.75/16.43 (0) CpxIntTrs 20.75/16.43 (1) Loat Proof [FINISHED, 14.8 s] 20.75/16.43 (2) BOUNDS(1, INF) 20.75/16.43 20.75/16.43 20.75/16.43 ---------------------------------------- 20.75/16.43 20.75/16.43 (0) 20.75/16.43 Obligation: 20.75/16.43 Complexity Int TRS consisting of the following rules: 20.75/16.43 eval(A, B, C) -> Com_1(eval(A + 1, B + A, C)) :|: A >= B 20.75/16.43 eval(A, B, C) -> Com_1(eval(A - C, B + C * C, C - 1)) :|: A >= B 20.75/16.43 start(A, B, C) -> Com_1(eval(A, B, C)) :|: TRUE 20.75/16.43 20.75/16.43 The start-symbols are:[start_3] 20.75/16.43 20.75/16.43 20.75/16.43 ---------------------------------------- 20.75/16.43 20.75/16.43 (1) Loat Proof (FINISHED) 20.75/16.43 20.75/16.43 20.75/16.43 ### Pre-processing the ITS problem ### 20.75/16.43 20.75/16.43 20.75/16.43 20.75/16.43 Initial linear ITS problem 20.75/16.43 20.75/16.43 Start location: start 20.75/16.43 20.75/16.43 0: eval -> eval : A'=1+A, B'=A+B, [ A>=B ], cost: 1 20.75/16.43 20.75/16.43 1: eval -> eval : A'=-C+A, B'=C^2+B, C'=-1+C, [ A>=B ], cost: 1 20.75/16.43 20.75/16.43 2: start -> eval : [], cost: 1 20.75/16.43 20.75/16.43 20.75/16.43 20.75/16.43 ### Simplification by acceleration and chaining ### 20.75/16.43 20.75/16.43 20.75/16.43 20.75/16.43 Accelerating simple loops of location 0. 20.75/16.43 20.75/16.43 Accelerating the following rules: 20.75/16.43 20.75/16.43 0: eval -> eval : A'=1+A, B'=A+B, [ A>=B ], cost: 1 20.75/16.43 20.75/16.43 1: eval -> eval : A'=-C+A, B'=C^2+B, C'=-1+C, [ A>=B ], cost: 1 20.75/16.43 20.75/16.43 20.75/16.43 20.75/16.43 Found no metering function for rule 0. 20.75/16.43 20.75/16.43 Accelerated rule 1 with backward acceleration, yielding the new rule 3. 20.75/16.43 20.75/16.43 Removing the simple loops: 1. 20.75/16.43 20.75/16.43 20.75/16.43 20.75/16.43 Accelerated all simple loops using metering functions (where possible): 20.75/16.43 20.75/16.43 Start location: start 20.75/16.43 20.75/16.43 0: eval -> eval : A'=1+A, B'=A+B, [ A>=B ], cost: 1 20.75/16.43 20.75/16.43 3: eval -> eval : A'=-1+1/2*k+A-k*C+1/2*k^2, B'=1-k^2*C-11/6*k+2*C+k*C^2+1/3*k^3-k*C+1/2*k^2+B, C'=-k+C, [ A>=B && k>0 && -3/2-(-1+k)*C+1/2*k+1/2*(-1+k)^2+A>=17/6-(-1+k)*C-11/6*k+2*C+(-1+k)*C^2+1/2*(-1+k)^2+1/3*(-1+k)^3-(-1+k)^2*C+B ], cost: k 20.75/16.43 20.75/16.43 2: start -> eval : [], cost: 1 20.75/16.43 20.75/16.43 20.75/16.43 20.75/16.43 Chained accelerated rules (with incoming rules): 20.75/16.43 20.75/16.43 Start location: start 20.75/16.43 20.75/16.43 2: start -> eval : [], cost: 1 20.75/16.43 20.75/16.43 4: start -> eval : A'=1+A, B'=A+B, [ A>=B ], cost: 2 20.75/16.43 20.75/16.43 5: start -> eval : A'=-1+1/2*k+A-k*C+1/2*k^2, B'=1-k^2*C-11/6*k+2*C+k*C^2+1/3*k^3-k*C+1/2*k^2+B, C'=-k+C, [ A>=B && k>0 && -3/2-(-1+k)*C+1/2*k+1/2*(-1+k)^2+A>=17/6-(-1+k)*C-11/6*k+2*C+(-1+k)*C^2+1/2*(-1+k)^2+1/3*(-1+k)^3-(-1+k)^2*C+B ], cost: 1+k 20.75/16.43 20.75/16.43 20.75/16.43 20.75/16.43 Removed unreachable locations (and leaf rules with constant cost): 20.75/16.43 20.75/16.43 Start location: start 20.75/16.43 20.75/16.43 5: start -> eval : A'=-1+1/2*k+A-k*C+1/2*k^2, B'=1-k^2*C-11/6*k+2*C+k*C^2+1/3*k^3-k*C+1/2*k^2+B, C'=-k+C, [ A>=B && k>0 && -3/2-(-1+k)*C+1/2*k+1/2*(-1+k)^2+A>=17/6-(-1+k)*C-11/6*k+2*C+(-1+k)*C^2+1/2*(-1+k)^2+1/3*(-1+k)^3-(-1+k)^2*C+B ], cost: 1+k 20.75/16.43 20.75/16.43 20.75/16.43 20.75/16.43 ### Computing asymptotic complexity ###
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