ReLo: a Dynamic Logic to Reason About Reo Circuits

E. Grilo, Bruno Lopes
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Abstract

Critical systems require high reliability and are present in many domains. They are systems in which failure may result in financial damage or even loss of lives. Standard techniques of software engineering are not enough to ensure the absence of unacceptable failures and/or that critical requirements are fulfilled. Reo is a component-based modelling language that aims to provide a framework to build software based on existing pieces of software, which has been used in a wide variety of domains. Its formal semantics provides grounds to certify that systems based on Reo models satisfy specific requirements (i.e., absence of deadlocks). Current logical approaches for reasoning over Reo require the conversion of formal semantics into a logical framework. ReLo is a dynamic logic that naturally subsumes Reo's semantics. It provides a means to reason over Reo circuits. This work extends ReLo by introducing the iteration operator, and soundness and completeness proofs for its axiomatization.
Reo:一种对Reo电路进行推理的动态逻辑
关键系统要求高可靠性,存在于许多领域。在这些系统中,故障可能导致经济损失甚至生命损失。软件工程的标准技术不足以确保没有不可接受的故障和/或关键需求得到满足。Reo是一种基于组件的建模语言,旨在提供一个框架,以便在现有软件的基础上构建软件,这些软件已被广泛用于各种领域。它的形式化语义提供了证明基于Reo模型的系统满足特定需求的依据(例如,没有死锁)。当前在Reo上进行推理的逻辑方法需要将形式语义转换为逻辑框架。ReLo是一种动态逻辑,它自然地包含了Reo的语义。它提供了一种对Reo电路进行推理的方法。本文通过引入迭代算子及其公理化的完备性和完全性证明,对ReLo进行了扩展。
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