|COOKIES: By using this website you agree that we can place Google Analytics Cookies on your device for performance monitoring.|
Graph-Based Reasoning in Separation Logic for Fun and Profit
If you have a question about this talk, please contact Microsoft Research Cambridge Talks Admins.
This event may be recorded and made available internally or externally via http://research.microsoft.com. Microsoft will own the copyright of any recordings made. If you do not wish to have your image/voice recorded please consider this before attending
In this talk, I will present a graph-based approach to reasoning in a fragment of Separation Logic with pointers and linked lists which gives new complexity bounds and new algorithms for standard reasoning procedures outperforming state-of-the-art reasoners up to several orders of magnitude. Separation Logic is an extension of Hoare logic that enables the efficient verification of programs that manipulate dynamically allocated data structures. Over the last couple of years, fragments of Separation Logic with decidable inference problems have successfully been employed in tools such as Smallfoot, SpaceInvader or SLAyer to automatically verify industrial low-level systems code. The applicability and scalability of these tools heavily depends on the computational costs of the underlying reasoning procedures. In the aforementioned tools, the implemented reasoning procedures for the fragment of Separation Logic with pointers and linked lists proceed via a syntactic proof search, which gives a worst-case exponential running time. I will present a recently introduced approach to entailment checking in this fragment which is based on graph-theoretic methods and allows for polynomial-time reasoning. Alongside with settling an open problem about the complexity of entailment in this fragment and providing highly competitive reasoning procedures, this approach also yields nice algorithms for other reasoning problems such as frame inference. I will conclude my talk discussing limitations and possible directions for future work.
This talk is part of the Microsoft Research Cambridge, public talks series.
This talk is included in these lists:
Note that ex-directory lists are not shown.
Other listsCRI Reading Group on Cancer Systems Biology Quantum Matter Journal Club Hulsean Lectures 2012
Other talksParticle filters and curse of dimensionality TBA Shaping and reshaping regulatory loops in Drosophila morphogen signaling. This time is different: causes and consequences of British banking instability, 1830-2010 Cambridge Public Policy Seminar: Title TBC Guided Tour of Great St Mary's Church - 1:00pm