Actes des Sixièmes journées nationales du Groupement De Recherche CNRS du Génie de la Programmation et du Logiciel

National audienceCe document contient les actes des Sixièmes journées nationales du Groupement De Recherche CNRS du Génie de la Programmation et du Logiciel (GDR GPL) s'étant déroulées au CNAM à Paris du 11 au 13 juin 2014. Les contributions présentées dans ce document ont été sélectionnées par les différents groupes de travail du GDR. Il s'agit de résumés, de nouvelles versions, de posters et de démonstrations qui correspondent à des travaux qui ont déjà été validés par les comités de programmes d'autres conférences et revues et dont les droits appartiennent exclusivement à leurs auteurs

Computer Aided Verification

This open access two-volume set LNCS 10980 and 10981 constitutes the refereed proceedings of the 30th International Conference on Computer Aided Verification, CAV 2018, held in Oxford, UK, in July 2018. The 52 full and 13 tool papers presented together with 3 invited papers and 2 tutorials were carefully reviewed and selected from 215 submissions. The papers cover a wide range of topics and techniques, from algorithmic and logical foundations of verification to practical applications in distributed, networked, cyber-physical, and autonomous systems. They are organized in topical sections on model checking, program analysis using polyhedra, synthesis, learning, runtime verification, hybrid and timed systems, tools, probabilistic systems, static analysis, theory and security, SAT, SMT and decisions procedures, concurrency, and CPS, hardware, industrial applications

Efficient compilation of a verification-friendly programming language

This thesis develops a compiler to convert a program written in the verification friendly programming language Whiley into an efficient implementation in C. Our compiler uses a mixture of static analysis, run-time monitoring and a code generator to and faster integer types, eliminate unnecessary array copies and de-allocate unused memory without garbage collection, so that Whiley programs can be translated into C code to run fast and for long periods on general operating systems as well as limited-resource embedded devices. We also present manual and automatic proofs to verify memory safety of our implementations, and benchmark on a variety of test cases for practical use. Our benchmark results show that, in our test suite, our compiler effectively reduces the time complexity to the lowest possible level and stops all memory leaks without causing double-freeing problems. The performance of implementations can be further improved by choosing proper integer types within the ranges and exploiting parallelism in the programs

Edge landscapes in post-millennial British fiction

Post-millennial Britain is a locus of flux and uncertainty, defined by environmental concerns, fears regarding terrorism, and the destabilisation of European politics on the one hand, and increasing globalisation, liberal approaches to minority groups, and rapid technological advances on the other. The fiction that is being created at this point, in this place, reflects these issues in numerous different manners and through a variety of thematic shifts. One of these developments is a renewed literary interest in British rural landscapes, particularly those landscapes that are in some regard problematic, either literally or figuratively. These landscapes are defined as edges. This project examines the manner in which four novels employ British edge landscapes. Each chapter focuses on a particular novel and a particular landscape type, examining how the landscape functions within the text, and how the novel’s use of its place reflects post-millennial concerns. The project places the novels within a wider context of ecocritical principles and literary criticism, identifying both approaches specific to each individual text and prevailing tendencies that link the corpus. Ultimately the project delineates a preoccupation with uncertainty, and an attendant interest in the depiction of the particular, the individual experience and the local; it interrogates the ethics of this attention and marks the manner in which these texts both represent and remain complicit in the cultural elision of the consequences of human inhabitation in and interaction with their surroundings. The project concludes by considering the manner in which the prevailing concerns of the texts reflect an attention that self-reflexively marks itself as difficult, personal and flawed, and the manner in which the texts reflect environmental concern and insecurity while resisting the urge toward polemical trajectories