Titlebook: Certified Programs and Proofs; Third International Georges Gonthier,Michael Norrish Conference proceedings 2013 Springer International Pub

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A Formal Proof of Borodin-Trakhtenbrot’s Gap Theoremeen complexity classes. The proof is done at an abstract, machine independent level, and is particularly aimed to identify the minimal set of assumptions required to prove the result (smaller than expected, actually). The work is part of a long term . program, whose goal is to obtain, via a reverse

neuron

Extracting Proofs from Tabled Proof Searchroach to model checking with such specifications often involves state exploration. We consider four different tabling strategies that can minimize such exploration significantly. In general, tabling involves storing previously proved subgoals and reusing (instead of reproving) them in proof search.

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Formalizing the SAFECode Type Systemes out a wide range of common vulnerabilities. SVA uses an enhanced version of the Low-Level Virtual Machine (LLVM) compiler called SAFECode to enforce the policy through a combination of static and dynamic type-checks. However, this results in a relatively large trusted computing base (TCB). SVA re

愚蠢人

Certifiably Sound Parallelizing Transformationstial programs. At the same time, formal methods researchers have pushed compiler verification technology forward to the point that real compilers may be checked for correctness by proving that the compiler preserves a simulation relation between the source and target languages. We join these two lin

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Diverticulitis

CRUMB

corn732

A Formal Model and Correctness Proof for an Access Control Policy Frameworkn this paper the Role-Compatibility Model—a framework, introduced by Ott, in which access control policies can be expressed. We also give a dynamic model determining which security related events can happen while a system is running. We prove that if a policy in this framework ensures a resource is

concise

hangdog

Certifiably Sound Parallelizing Transformationsth respect to a new simulation relation, called ., that resolves this issue and is equivalent to weak bisimulation when no internal nondeterminism is present. All formal details presented are proven and mechanically checked using the Coq Proof Assistant.