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Logic Programming pair #487096322
details
property
value
status
complete
benchmark
log.pl
ran by
Akihisa Yamada
cpu timeout
1200 seconds
wallclock timeout
300 seconds
memory limit
137438953472 bytes
execution host
n145.star.cs.uiowa.edu
space
SGST06
run statistics
property
value
solver
AProVE
configuration
standard
runtime (wallclock)
2.02907 seconds
cpu usage
5.02397
user time
4.75479
system time
0.269178
max virtual memory
1.9012928E7
max residence set size
426800.0
stage attributes
key
value
starexec-result
YES
output
YES proof of /export/starexec/sandbox2/benchmark/theBenchmark.pl # AProVE Commit ID: 794c25de1cacf0d048858bcd21c9a779e1221865 marcel 20200619 unpublished dirty Left Termination of the query pattern log(g,a) w.r.t. the given Prolog program could successfully be proven: (0) Prolog (1) PrologToPiTRSProof [SOUND, 0 ms] (2) PiTRS (3) DependencyPairsProof [EQUIVALENT, 0 ms] (4) PiDP (5) DependencyGraphProof [EQUIVALENT, 0 ms] (6) AND (7) PiDP (8) UsableRulesProof [EQUIVALENT, 0 ms] (9) PiDP (10) PiDPToQDPProof [SOUND, 0 ms] (11) QDP (12) QDPSizeChangeProof [EQUIVALENT, 0 ms] (13) YES (14) PiDP (15) UsableRulesProof [EQUIVALENT, 0 ms] (16) PiDP (17) PiDPToQDPProof [SOUND, 0 ms] (18) QDP (19) MRRProof [EQUIVALENT, 0 ms] (20) QDP (21) DependencyGraphProof [EQUIVALENT, 0 ms] (22) TRUE ---------------------------------------- (0) Obligation: Clauses: half(0, 0). half(s(0), 0). half(s(s(X)), s(Y)) :- half(X, Y). log(0, s(0)). log(s(X), s(Y)) :- ','(half(s(X), Z), log(Z, Y)). Query: log(g,a) ---------------------------------------- (1) PrologToPiTRSProof (SOUND) We use the technique of [TOCL09]. With regard to the inferred argument filtering the predicates were used in the following modes: log_in_2: (b,f) half_in_2: (b,f) Transforming Prolog into the following Term Rewriting System: Pi-finite rewrite system: The TRS R consists of the following rules: log_in_ga(0, s(0)) -> log_out_ga(0, s(0)) log_in_ga(s(X), s(Y)) -> U2_ga(X, Y, half_in_ga(s(X), Z)) half_in_ga(0, 0) -> half_out_ga(0, 0) half_in_ga(s(0), 0) -> half_out_ga(s(0), 0) half_in_ga(s(s(X)), s(Y)) -> U1_ga(X, Y, half_in_ga(X, Y)) U1_ga(X, Y, half_out_ga(X, Y)) -> half_out_ga(s(s(X)), s(Y)) U2_ga(X, Y, half_out_ga(s(X), Z)) -> U3_ga(X, Y, log_in_ga(Z, Y)) U3_ga(X, Y, log_out_ga(Z, Y)) -> log_out_ga(s(X), s(Y)) The argument filtering Pi contains the following mapping: log_in_ga(x1, x2) = log_in_ga(x1) 0 = 0 log_out_ga(x1, x2) = log_out_ga(x2) s(x1) = s(x1) U2_ga(x1, x2, x3) = U2_ga(x3) half_in_ga(x1, x2) = half_in_ga(x1) half_out_ga(x1, x2) = half_out_ga(x2) U1_ga(x1, x2, x3) = U1_ga(x3) U3_ga(x1, x2, x3) = U3_ga(x3) Infinitary Constructor Rewriting Termination of PiTRS implies Termination of Prolog
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