details

property	value
status	complete
benchmark	otto03.xml
ran by	Akihisa Yamada
cpu timeout	1200 seconds
wallclock timeout	300 seconds
memory limit	137438953472 bytes
execution host	n050.star.cs.uiowa.edu
space	AProVE_07

run statistics

property	value
solver	Wanda
configuration	FirstOrder
runtime (wallclock)	0.282576084137 seconds
cpu usage	0.180045322
max memory	8306688.0

stage attributes

key	value
output-size	1652
starexec-result	MAYBE

output

/export/starexec/sandbox2/solver/bin/starexec_run_FirstOrder /export/starexec/sandbox2/benchmark/theBenchmark.xml /export/starexec/sandbox2/output/output_files -------------------------------------------------------------------------------- MAYBE We consider the system theBenchmark. We are asked to determine termination of the following first-order TRS. 0 : [] --> o fac : [o] --> o false : [] --> o help : [o * o] --> o if : [o * o * o] --> o lt : [o * o] --> o s : [o] --> o times : [o * o] --> o true : [] --> o lt(0, s(X)) => true lt(X, 0) => false lt(s(X), s(Y)) => lt(X, Y) fac(X) => help(X, 0) help(X, Y) => if(lt(Y, X), X, Y) if(true, X, Y) => times(s(Y), help(X, s(Y))) if(false, X, Y) => s(0) As the system is orthogonal, it is terminating if it is innermost terminating by [Gra95]. Then, by [FuhGieParSchSwi11], it suffices to prove (innermost) termination of the typed system, with sort annotations chosen to respect the rules, as follows: 0 : [] --> ub fac : [ub] --> ub false : [] --> xa help : [ub * ub] --> ub if : [xa * ub * ub] --> ub lt : [ub * ub] --> xa s : [ub] --> ub times : [ub * ub] --> ub true : [] --> xa +++ Citations +++ [FuhGieParSchSwi11] C. Fuhs, J. Giesl, M. Parting, P. Schneider-Kamp, and S. Swiderski. Proving Termination by Dependency Pairs and Inductive Theorem Proving. In volume 47(2) of Journal of Automated Reasoning. 133--160, 2011. [Gra95] B. Gramlich. Abstract Relations Between Restricted Termination and Confluence Properties of Rewrite Systems. In volume 24(1-2) of Fundamentae Informaticae. 3--23, 1995. popout

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job log

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actions

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