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Specification and Formal Verification of Atomic Concurrent Real-Time Transactions

Fulltext:


Publication Type:

Conference/Workshop Paper

Venue:

The 23rd IEEE Pacific Rim International Symposium on Dependable Computing


Abstract

Although atomicity, isolation and temporal correctness are crucial to the dependability of many real-time database-centric systems, the selected assurance mechanism for one property may breach another. Trading off these properties requires to specify and analyze their dependencies, together with the selected supporting mechanisms (abort recovery, concurrency control, and scheduling), which is still insufficiently supported. In this paper, we propose a UML profile, called UTRAN, for specifying atomic concurrent real-time transactions, with explicit support for all three properties and their supporting mechanisms. We also propose a pattern-based modeling framework, called UPPCART, to formalize the transactions and the mechanisms specified in UTRAN, as UPPAAL timed automata. Various mechanisms can be modeled flexibly using our reusable patterns, after which the desired properties can be verified by the UPPAAL model checker. Our techniques facilitate systematic analysis of atomicity, isolation and temporal correctness trade-offs with guarantee, thus contributing to a dependable real-time database system.

Bibtex

@inproceedings{Cai5228,
author = {Simin Cai and Barbara Gallina and Dag Nystr{\"o}m and Cristina Seceleanu},
title = {Specification and Formal Verification of Atomic Concurrent Real-Time Transactions},
month = {December},
year = {2018},
booktitle = {The 23rd IEEE Pacific Rim International Symposium on Dependable Computing},
url = {http://www.es.mdh.se/publications/5228-}
}