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Author	Title	Year	Journal/Proceedings	Reftype	DOI/URL
Cabodi, G., Camurati, P., Garcia, L., Murciano, M., Nocco, S. & Quer, S.	Speeding up Model Checking by Exploiting Explicit and Hidden Verification Constraints [Abstract] [BibTeX]	2009	DATE '09: Proceedings of the conference on Design, Automation and Test in Europe, pp. 1686-1691	inproceedings
Abstract: Constraints represent a key component of state- of-the-art verification tools based on compositional approaches and assume–guarantee reasoning. In recent years, most of the research efforts on verification constraints have focused on defining formats and techniques to encode, or to synthesize, constraints starting from the specification of the design. In this paper, we analyze the impact of constraints on the performance of model checking tools, and we discuss how to effectively exploit them. We also introduce an approach to explicitly derive verification constraints hidden in the design and/or in the property under verification. Such constraints may simply come from true design constraints, embedded within the properties, or may be generated in the general effort to reduce or partition the state space. Experimental results show that, in both cases, we can reap benefits for the overall verification process in several hard-to-solve designs, where we obtain speed-ups of more than one order of magnitude.
BibTeX: @inproceedings{Cabodi09Speeding, author = {G. Cabodi and P. Camurati and L. Garcia and M. Murciano and S. Nocco and S. Quer}, title = {Speeding up Model Checking by Exploiting Explicit and Hidden Verification Constraints}, booktitle = {DATE '09: Proceedings of the conference on Design, Automation and Test in Europe}, year = {2009}, pages = {1686-1691} }
Lomuscio, A., Strulo, B., Walker, N. & Wu, P. Jin Dong and Huibiao Zhu (Ed.)	Assume-Guarantee Reasoning with Local Specifications [Abstract] [BibTeX]	2010	Vol. 6447Formal Methods and Software Engineering, pp. 204-219	incollection	URL
Abstract: We investigate assume-guarantee reasoning for global specifications consisting of conjunctions of local specifications. We present a sound and complete assume-guarantee rule that permits reasoning about individual modules for local specifications and draws conclusions on global specifications. We illustrate our approach with an example from the field of network congestion control, where different agents are responsible for controlling packet flow across a shared infrastructure. In this context, we derive an assume-guarantee rule for system stability, and show that this rule is valuable to reason about any number of agents, any initial flow configuration, and any topology of bounded degree.
BibTeX: @incollection{springerlink:10.1007/978-3-642-16901-4_15, author = {Lomuscio, Alessio and Strulo, Ben and Walker, Nigel and Wu, Peng}, title = {Assume-Guarantee Reasoning with Local Specifications}, booktitle = {Formal Methods and Software Engineering}, publisher = {Springer Berlin / Heidelberg}, year = {2010}, volume = {6447}, pages = {204-219}, note = {10.1007/978-3-642-16901-4_15}, url = {http://dx.doi.org/10.1007/978-3-642-16901-4_15} }
Tripakis, S., Andrade, H., Ghosal, A., Limaye, R., Ravindran, K., Wang, G., Yang, G., Kormerup, J. & Wong, I.	Correct and non-defensive glue design using abstract models [Abstract] [BibTeX]	2011	Proceedings of the seventh IEEE/ACM/IFIP international conference on Hardware/software codesign and system synthesis, pp. 59-68	inproceedings	DOI URL
Abstract: Current hardware design practice often relies on integration of components, some of which may be IP or legacy blocks. While integration eases design by allowing modularization and component reuse, it is still done in a mostly ad hoc manner. Designers work with descriptions of components that are either informal or incomplete (e.g., documents in English, structural but non-behavioral specifications in IP-XACT) or too low-level (e.g., HDL code), and have little to no automatic support for stitching the components together. Providing such support is the glue design problem. This paper addresses this problem using a model-based approach. The key idea is to use high-level models, such as dataflow graphs, that enable efficient automated analysis. The analysis can be used to derive performance properties of the system (e.g., component compatibility, throughput, etc.), optimize resource usage (e.g., buffer sizes), and even synthesize low-level code (e.g., control logic). However, these models are only abstractions of the real system, and often omit critical information. As a result, the analysis outcomes may be defensive (e.g., buffers that are too big) or even incorrect (e.g., buffers that are too small). The paper examines these situations and proposes a correct and non-defensive design methodology that employs the right models to explore accurate performance and resource trade-offs.
BibTeX: @inproceedings{Tripakis201, author = {Tripakis, Stavros and Andrade, Hugo and Ghosal, Arkadeb and Limaye, Rhishikesh and Ravindran, Kaushik and Wang, Guoqiang and Yang, Guang and Kormerup, Jacob and Wong, Ian}, title = {Correct and non-defensive glue design using abstract models}, booktitle = {Proceedings of the seventh IEEE/ACM/IFIP international conference on Hardware/software codesign and system synthesis}, publisher = {ACM}, year = {2011}, pages = {59--68}, url = {http://doi.acm.org/10.1145/2039370.2039382}, doi = {http://doi.acm.org/10.1145/2039370.2039382} }

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