details

property	value
status	complete
benchmark	average-ioi.pl
ran by	Akihisa Yamada
cpu timeout	1200 seconds
wallclock timeout	300 seconds
memory limit	137438953472 bytes
execution host	n139.star.cs.uiowa.edu
space	lpexamples

run statistics

property	value
solver	AProVE
configuration	standard
runtime (wallclock)	1.80783 seconds
cpu usage	4.08229
user time	3.91782
system time	0.164468
max virtual memory	1.861138E7
max residence set size	281916.0

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# AProVE Commit ID: 794c25de1cacf0d048858bcd21c9a779e1221865 marcel 20200619 unpublished dirty Left Termination of the query pattern average(g,a,g) w.r.t. the given Prolog program could successfully be proven: (0) Prolog (1) PrologToPiTRSProof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) PiDP (7) UsableRulesProof [EQUIVALENT, 0 ms] (8) PiDP (9) PiDPToQDPProof [SOUND, 0 ms] (10) QDP (11) QDPSizeChangeProof [EQUIVALENT, 0 ms] (12) YES ---------------------------------------- (0) Obligation: Clauses: average(0, 0, 0). average(0, s(0), 0). average(0, s(s(0)), s(0)). average(s(X), Y, Z) :- average(X, s(Y), Z). average(X, s(s(s(Y))), s(Z)) :- average(s(X), Y, Z). Query: average(g,a,g) ---------------------------------------- (1) PrologToPiTRSProof (SOUND) We use the technique of [TOCL09]. With regard to the inferred argument filtering the predicates were used in the following modes: average_in_3: (b,f,b) Transforming Prolog into the following Term Rewriting System: Pi-finite rewrite system: The TRS R consists of the following rules: average_in_gag(0, 0, 0) -> average_out_gag(0, 0, 0) average_in_gag(0, s(0), 0) -> average_out_gag(0, s(0), 0) average_in_gag(0, s(s(0)), s(0)) -> average_out_gag(0, s(s(0)), s(0)) average_in_gag(s(X), Y, Z) -> U1_gag(X, Y, Z, average_in_gag(X, s(Y), Z)) average_in_gag(X, s(s(s(Y))), s(Z)) -> U2_gag(X, Y, Z, average_in_gag(s(X), Y, Z)) U2_gag(X, Y, Z, average_out_gag(s(X), Y, Z)) -> average_out_gag(X, s(s(s(Y))), s(Z)) U1_gag(X, Y, Z, average_out_gag(X, s(Y), Z)) -> average_out_gag(s(X), Y, Z) The argument filtering Pi contains the following mapping: average_in_gag(x1, x2, x3) = average_in_gag(x1, x3) 0 = 0 average_out_gag(x1, x2, x3) = average_out_gag(x2) s(x1) = s(x1) U1_gag(x1, x2, x3, x4) = U1_gag(x4) U2_gag(x1, x2, x3, x4) = U2_gag(x4) Infinitary Constructor Rewriting Termination of PiTRS implies Termination of Prolog ---------------------------------------- (2) Obligation: Pi-finite rewrite system: The TRS R consists of the following rules: average_in_gag(0, 0, 0) -> average_out_gag(0, 0, 0) average_in_gag(0, s(0), 0) -> average_out_gag(0, s(0), 0) average_in_gag(0, s(s(0)), s(0)) -> average_out_gag(0, s(s(0)), s(0)) average_in_gag(s(X), Y, Z) -> U1_gag(X, Y, Z, average_in_gag(X, s(Y), Z)) average_in_gag(X, s(s(s(Y))), s(Z)) -> U2_gag(X, Y, Z, average_in_gag(s(X), Y, Z)) U2_gag(X, Y, Z, average_out_gag(s(X), Y, Z)) -> average_out_gag(X, s(s(s(Y))), s(Z)) U1_gag(X, Y, Z, average_out_gag(X, s(Y), Z)) -> average_out_gag(s(X), Y, Z) The argument filtering Pi contains the following mapping: average_in_gag(x1, x2, x3) = average_in_gag(x1, x3) 0 = 0 popout

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