Logical Methods in Computer Science (Feb 2023)

Bidirectional Runtime Enforcement of First-Order Branching-Time Properties

  • Luca Aceto,
  • Ian Cassar,
  • Adrian Francalanza,
  • Anna Ingolfsdottir

DOI
https://doi.org/10.46298/lmcs-19(1:14)2023
Journal volume & issue
Vol. Volume 19, Issue 1

Abstract

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Runtime enforcement is a dynamic analysis technique that instruments a monitor with a system in order to ensure its correctness as specified by some property. This paper explores bidirectional enforcement strategies for properties describing the input and output behaviour of a system. We develop an operational framework for bidirectional enforcement and use it to study the enforceability of the safety fragment of Hennessy-Milner logic with recursion (sHML). We provide an automated synthesis function that generates correct monitors from sHML formulas, and show that this logic is enforceable via a specific type of bidirectional enforcement monitors called action disabling monitors.

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