Verifying OCL Operational Contracts via SMT-based Synthesising

Hao Wu, Joseph Timoney

Abstract

The set of operational contracts written in the Object Constraint Language can be used to describe the behaviour of a system. These contracts are specified as pre/post conditions to constrain inputs and outputs of operation calls defined in a UML class diagram. Hence, a sequence of operation calls conforming to pre/postconditions is crucial to analyse, verify and understand the behaviour of a system. In this paper, we present a new technique for synthesising property-based call sequences from a set of operational contracts. This technique works by reducing a synthesis problem to a satisfiability modulo theories (SMT) problem. We distinguish our technique from existing approaches by introducing a novel encoding that supports high levels of expressiveness, flexibility and performance. This encoding not only allows us to synthesise call sequences at a much larger scale but also maintains high performance. The evaluation results show that our technique is effective and scales reasonably well.

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Paper Citation


in Harvard Style

Wu H. and Timoney J. (2020). Verifying OCL Operational Contracts via SMT-based Synthesising.In Proceedings of the 8th International Conference on Model-Driven Engineering and Software Development - Volume 1: MODELSWARD, ISBN 978-989-758-400-8, pages 249-259. DOI: 10.5220/0009340602490259


in Bibtex Style

@conference{modelsward20,
author={Hao Wu and Joseph Timoney},
title={Verifying OCL Operational Contracts via SMT-based Synthesising},
booktitle={Proceedings of the 8th International Conference on Model-Driven Engineering and Software Development - Volume 1: MODELSWARD,},
year={2020},
pages={249-259},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0009340602490259},
isbn={978-989-758-400-8},
}


in EndNote Style

TY - CONF

JO - Proceedings of the 8th International Conference on Model-Driven Engineering and Software Development - Volume 1: MODELSWARD,
TI - Verifying OCL Operational Contracts via SMT-based Synthesising
SN - 978-989-758-400-8
AU - Wu H.
AU - Timoney J.
PY - 2020
SP - 249
EP - 259
DO - 10.5220/0009340602490259