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TRS Stand 20472 pair #381711866
details
property
value
status
complete
benchmark
emmes-nonloop-ex1_1.xml
ran by
Akihisa Yamada
cpu timeout
1200 seconds
wallclock timeout
300 seconds
memory limit
137438953472 bytes
execution host
n191.star.cs.uiowa.edu
space
EEG_IJCAR_12
run statistics
property
value
solver
Wanda
configuration
FirstOrder
runtime (wallclock)
0.238361120224 seconds
cpu usage
0.231350427
max memory
8667136.0
stage attributes
key
value
output-size
1550
starexec-result
MAYBE
output
/export/starexec/sandbox/solver/bin/starexec_run_FirstOrder /export/starexec/sandbox/benchmark/theBenchmark.xml /export/starexec/sandbox/output/output_files -------------------------------------------------------------------------------- MAYBE We consider the system theBenchmark. We are asked to determine termination of the following first-order TRS. 0 : [] --> o f : [o * o * o] --> o false : [] --> o gt : [o * o] --> o plus1 : [o] --> o plus2 : [o] --> o s : [o] --> o true : [] --> o f(true, X, Y) => f(gt(X, Y), plus2(X), plus1(Y)) gt(s(X), 0) => true gt(0, X) => false gt(s(X), s(Y)) => gt(X, Y) plus1(X) => s(X) plus2(X) => s(s(X)) 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 : [] --> gb f : [va * gb * gb] --> y false : [] --> va gt : [gb * gb] --> va plus1 : [gb] --> gb plus2 : [gb] --> gb s : [gb] --> gb true : [] --> va +++ 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.
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