Automated Compositional Proofs for Real-Time Systems

Furia, Carlo A.; Rossi, Matteo; Mandrioli, Dino; Morzenti, Angelo

doi:10.1007/978-3-540-31984-9_25

Cited by 5 publications

(10 citation statements)

References 16 publications

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“…TRIO is particularly interesting for us as its modularization mechanisms foster the adoption of a compositional modeling approach, which, in turn, is conducive to the development of compositional verification techniques [4]. TRIO is a first-order linear temporal logic that supports a metric on time.…”

Section: Background: Trio and Zotmentioning

confidence: 99%

“…The goal of the compositional approach to verification in TRIO is to simplify the proof Σ ⇒ ρ by breaking it up into smaller lemmas to be verified for single components C i , instead of the whole system S. The technical framework to carry out compositional proofs in TRIO has been introduced in [4]. The compositional approach in TRIO is in the so-called assume/guarantee mold (see [7,Chap.…”

Section: A Compositional Verification With Triomentioning

confidence: 99%

“…Circularities can occur when, to prove a property ρ i , a property ρ j is used whose validity, however, depends on ρ i . Circularities can be the source of inconsistencies; for this reason, [4] defined an inference rule to soundly prove properties of systems in which certain kinds of circularities arise. In addition, it introduced a sequence of steps through which compositional reasoning can be carried out on TRIO specifications, both in presence and in absence of circularities among properties.…”

Section: A Compositional Verification With Triomentioning

confidence: 99%

“…In this paper, using the compositional framework introduced in [4] as foundation, we present a logic-based technique for the modeling and verification of systems made of a large number of interacting components, such as distributed systems with numerous nodes. The technique is supported by a fully-automated SAT-based tool, which is used to carry out compositional proofs.…”

Section: Introductionmentioning

confidence: 99%

“…The paper is structured as follows: Section II introduces the TRIO temporal logic, the Zot tool that we use for the analysis, and the compositional framework of [4]. Section III presents the modeling guidelines enabling the usage of compositional analysis for distributed systems.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Using Compositionality to Formally Model and Analyze Systems Built of a High Number of Components

Bindelli

Nitto

Furia

et al. 2010

2010 15th IEEE International Conference on Engineering of Complex Computer Systems

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Abstract-When dependability of systems with a large number of components is a concern, being able to model and analyze their properties, especially non-functional ones, in a formal and automated way becomes essential. Often, however, the application of formal methods and automated reasoning is seen by practitioners as complex and time consuming. Compositional techniques can help modify this belief.In this paper we show how a compositional modeling and verification technique can be applied to the analysis of distributed systems with numerous interacting nodes. We automate the proof by exploiting a SAT-based tool. We demonstrate the validity of the resulting approach by applying it to an autonomic service-based system that manages, in a coordinated peer-to-peer manner, electricity consumption in a geographical area. In particular, we show that in this case the time needed for performing the proof is remarkably shorter than in the case in which we adopt a non-compositional approach.

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Section: Background: Trio and Zotmentioning

confidence: 99%

Section: A Compositional Verification With Triomentioning

confidence: 99%

Section: A Compositional Verification With Triomentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Using Compositionality to Formally Model and Analyze Systems Built of a High Number of Components

Bindelli

Nitto

Furia

et al. 2010

2010 15th IEEE International Conference on Engineering of Complex Computer Systems

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Automated Compositional Proofs for Real-Time Systems

Furia

Rossi

Mandrioli

et al. 2005

Fundamental Approaches to Software Engineering

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Abstract. We present a framework for formally proving that the composition of the behaviors of the different parts of a complex, real-time system ensures a desired global specification of the overall system. The framework is based on a simple compositional rely/guarantee circular inference rule, plus a small set of conditions concerning the integration of the different parts into a whole system. The reference specification language is the TRIO metric linear temporal logic.The novelty of our approach with respect to existing compositional frameworks -most of which do not deal explicitly with real-time requirements -consists mainly in its generality and abstraction from any assumptions about the underlying computational model and from any semantic characterizations of the temporal logic language used in the specification. Moreover, the framework deals equally well with continuous and discrete time. It is supported by a tool, implemented on top of the proof-checker PVS, to perform deduction-based verification through theorem-proving of modular real-time axiom systems.As an example of application, we show the verification of a real-time version of the old-fashioned but still relevant "benchmark" of the dining philosophers problem.

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Eigenschaftsorientierte Beschreibung der logischen Architektur eingebetteter Systeme

Trachtenherz¹

2010

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KurzfassungAutomobile eingebettete Systeme sind komplexe und verteilte Netzwerke, die aus 20-80 Steuergeräten aufgebaut werden, auf denen jeweils eine oder mehrere Softwarekomponenten laufen. Der logische Architekturentwurf ist somit ein wichtiger Bestandteil des Entwicklungsprozesses.Die Spezifikation der Netzwerkarchitektur findet in der Entwurfsphase statt -hier werden die vernetzten Funktionalitäten und die Verbindungsstruktur zwischen den Komponenten definiert. Eine Verhaltensspezifikation für die einzelnen Komponenten wird in der Analysephase überwiegend mit informalen/semi-formalen Mitteln durchgeführt. Eine formale Spezifikation des Verhaltens wird häufig erst bei der Implementierung durchgeführt. Die Qualitätssicherung für die vernetzten Funktionalitäten findet deshalb erst durch Integrationstests und damit sehr spät in dem Entwicklungsprozess statt. Es fehlt eine hinreichend abstrakte formale Spezifikation der einzelnen Komponenten, die eine präzisere Analyse der Kompatibilität und der Inkonsistenzen in und zwischen den Verhaltensspezifikationen verschiedener Komponenten bereits in der Entwurfsphase und insbesondere vor der Erstellung einer ausführbaren Spezifikation ermöglicht.In der vorliegenden Arbeit entwickeln wir den Lösungsansatz der eigenschaftsorientierten Beschreibung der logischen Architektur eingebetteter Systeme, der eine präzise deklarative Spezifikation mit wählbarem Grad der Abstraktion für unterschiedliche Entwicklungsphasen und -Ebenen ermöglicht. Hierfür erfüllen die verwendeten Beschreibungsmittel für die logische Architektur folgende Anforderungen: Modulare Struktur-und Verhaltensspezifikation; Eindeutigkeit und Präzision durch formale Semantik der Beschreibungsmittel; Möglichkeit der Unterspezifikation / wählbarer Abstraktionsgrad der Spezifikation; Möglichkeit der integrierten Spezifikation struktureller und funktionaler Eigenschaften; Anschauliche Darstellung der Spezifikation. Die Hauptbeiträge dieser Arbeit sind die folgenden:• Die Semantik des CASE-Werkzeugs AUTOFOCUS wurde formalisiert und so erweitert, dass die modulare hierarchische Beschreibung der logischen Architektur eingebetteter Systeme vereinfacht wird. AbstractAutomotive embedded systems are complex and distributed networks consisting of 20-80 ECUs (electronic control units), on each of them single or multiple software components are running. Hence the logical architecture design is an important constituent part of the development process.The network architecture is specified in the design phase -here are defined the networked functionalities and the connection structure between the components. A behavioural specification for the single components is performed in the analysis phase prevailingly by means of informal/semi-formal techniques. A formal behavioural specification is often given at first during the implementation. The quality assurance for networked functionalities is therefore at first feasible by integration tests and hence very late in the development process. A sufficiently abstract formal specificati...

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Automated Compositional Proofs for Real-Time Systems

Cited by 5 publications

References 16 publications

Using Compositionality to Formally Model and Analyze Systems Built of a High Number of Components

Using Compositionality to Formally Model and Analyze Systems Built of a High Number of Components

Automated Compositional Proofs for Real-Time Systems

Eigenschaftsorientierte Beschreibung der logischen Architektur eingebetteter Systeme

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