NDLI: Quantified Dynamic Metric Temporal Logic for Dynamic Networks of Stochastic Hybrid Automata

Content Provider	IEEE Xplore Digital Library
Author	David, Alexandre Larsen, Kim G. Legay, Axel Li, Guangyuan Poulsen, Danny Bogsted
Copyright Year	2014
Abstract	Multiprocessing systems are capable of running multiple processes concurrently. By now such systems have established themselves as the defacto standard for operating systems. At the core of an operating system is the ability to execute programs and as such there must be a primitive for instantiating new processes - also programs are allowed to die/terminate. Operating systems may allow the executing programs to split (spawn) into more computational threads in order to let programs take advantage of concurrent execution as well. One of the most used modelling languages, Timed Automata, is based on multiple automata interacting thus they easily model the concurrent execution of programs. However, this language assumes a fixed size system in the sense that automata cannot be created at will but must be instantiated when the overall system is created. This is in contrast with the fact that developers are able to create threads when needed. In this paper we present our continued work to incorporate spawning of threads into U PPAAL SMC. Our modelling language, Dynamic Networks of Stochastic Hybrid Automata, is essentially Timed Automata extended with a spawning primitive and a tear-down primitive. The dynamic creation of threads has the side-effect that it is no longer possible to use ordinary logics to specify behaviours of individual threads - because the threads no longer have unique names. In this paper we propose an extension of Metric Temporal Logic with means for quantifying over the dynamically created threads. This makes it possible to zoom in on individual threads and specify requirements to their future behaviour. Furthermore, we present a monitoring procedure for the logic based on rewriting formulas. The presented modelling language and the specification language have been implemented in U PPAAL SMC version 4.1.18.
Starting Page	32
Ending Page	41
File Size	388676
Page Count	10
File Format	PDF
ISBN	9781479942817
ISSN	15504808
DOI	10.1109/ACSD.2014.21
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-06-23
Publisher Place	Tunisia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Servers Automata Instruction sets Semantics Ports (Computers) Delays Stochastic processes Stochastic Hybrid Automata Statistical Model Checking Dynamic Systems QDMTL
Content Type	Text
Resource Type	Article

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