Logic Programming pair #487529489

details

property	value
status	complete
benchmark	minimum-fb.pl
ran by	Akihisa Yamada
cpu timeout	1200 seconds
wallclock timeout	300 seconds
memory limit	137438953472 bytes
execution host	n080.star.cs.uiowa.edu
space	BCGGV05

run statistics

property	value
solver	AProVE
configuration	standard
runtime (wallclock)	2.50228500366 seconds
cpu usage	6.180217741
max memory	7.57633024E8

stage attributes

key	value
output-size	56008
starexec-result	MAYBE

output

/export/starexec/sandbox/solver/bin/starexec_run_standard /export/starexec/sandbox/benchmark/theBenchmark.pl /export/starexec/sandbox/output/output_files


--------------------------------------------------------------------------------


MAYBE
proof of /export/starexec/sandbox/benchmark/theBenchmark.pl
# AProVE Commit ID: 794c25de1cacf0d048858bcd21c9a779e1221865 marcel 20200619 unpublished dirty


Left Termination of the query pattern

minimum(a,g)

w.r.t. the given Prolog program could not be shown:

(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, 1 ms]
    (10) QDP
(11) PrologToPiTRSProof [SOUND, 0 ms]
(12) PiTRS
    (13) DependencyPairsProof [EQUIVALENT, 0 ms]
    (14) PiDP
    (15) DependencyGraphProof [EQUIVALENT, 0 ms]
    (16) PiDP
    (17) UsableRulesProof [EQUIVALENT, 0 ms]
    (18) PiDP
    (19) PiDPToQDPProof [SOUND, 2 ms]
    (20) QDP
(21) PrologToTRSTransformerProof [SOUND, 0 ms]
(22) QTRS
    (23) DependencyPairsProof [EQUIVALENT, 0 ms]
    (24) QDP
    (25) DependencyGraphProof [EQUIVALENT, 0 ms]
    (26) QDP
    (27) MNOCProof [EQUIVALENT, 0 ms]
    (28) QDP
    (29) UsableRulesProof [EQUIVALENT, 0 ms]
    (30) QDP
    (31) QReductionProof [EQUIVALENT, 0 ms]
    (32) QDP
(33) PrologToIRSwTTransformerProof [SOUND, 0 ms]
(34) IRSwT
    (35) IRSwTSimpleDependencyGraphProof [EQUIVALENT, 0 ms]
    (36) IRSwT
    (37) IntTRSCompressionProof [EQUIVALENT, 24 ms]
    (38) IRSwT
    (39) IRSFormatTransformerProof [EQUIVALENT, 0 ms]
    (40) IRSwT
    (41) IRSwTTerminationDigraphProof [EQUIVALENT, 0 ms]
    (42) IRSwT
    (43) FilterProof [EQUIVALENT, 0 ms]
    (44) IntTRS
    (45) IntTRSPeriodicNontermProof [COMPLETE, 9 ms]
    (46) NO
(47) PrologToDTProblemTransformerProof [SOUND, 0 ms]
(48) TRIPLES
    (49) TriplesToPiDPProof [SOUND, 3 ms]
    (50) PiDP
    (51) DependencyGraphProof [EQUIVALENT, 0 ms]
    (52) PiDP
    (53) PiDPToQDPProof [SOUND, 0 ms]
    (54) QDP


----------------------------------------

(0)
Obligation:
Clauses:

minimum(tree(X, void, X1), X).
minimum(tree(X2, Left, X3), X) :- minimum(Left, X).


Query: minimum(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:

minimum_in_2: (f,b)

Transforming Prolog into the following Term Rewriting System:

Pi-finite rewrite system:
The TRS R consists of the following rules:

   minimum_in_ag(tree(X, void, X1), X) -> minimum_out_ag(tree(X, void, X1), X)
   minimum_in_ag(tree(X2, Left, X3), X) -> U1_ag(X2, Left, X3, X, minimum_in_ag(Left, X))
   U1_ag(X2, Left, X3, X, minimum_out_ag(Left, X)) -> minimum_out_ag(tree(X2, Left, X3), X)

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