PPT-13 – Program Correctness

25 Reasoning about Programs Assertions and Loop Invariants 26 Efficiency of Algorithms 1 Attendance Quiz 10 Program Correctness 2 Tip 13 n Confusion Program Correctness 3 Internally all applications use n to indicate line termination. The algorithm is an improved version of the bakery algorithm It is specified and proved correct without being decomposed into indivisible atomic operations This allows two different implementations for a conventional nondistributed system Moreover t Rustan M Leino Microsoft Research leinomicrosoftcom Abstract Traditionally the full verication of a programs functional correctness has been obtained with pen and paper or with interactive proof assistants whereas only reduced verication tasks such Partial correctness assertions are represented by intuitionistic linear implica tion We prove soundness and completeness over relational and trace models As a corollary we obtain a complete sequent calculus for inclusion and equivalence of regular e K. Rustan M. Leino. Research in Software Engineering (. RiSE. ). Microsoft Research, Redmond. Lecture 0. LASER Summer . School 2011. Elba, Italy. 4. . September 2011. Reasoning about programs. Central to any programming task. http://pan.cin.ufpe.br. © Marcelo d’Amorim 2010. Intuition. Program and mathematical formula are similar. Both manipulate symbols and have precise syntax and semantics.. © Marcelo d’Amorim 2010.  . Name . E-mail  . Country, City, University.   . Omer . Subasi.  .  . osubasi@ku.edu.tr.  .  . Turkey,. Istanbul, . Koc. . University .  . Anton . Dergunov.  .  . anton.dergunov@mail.ru. . is a slippery, slippery slope. Implications for technical communication. Once we’re done editing, we lose control of our word’s intended meanings. Misused Words. Example. : Cree Indians were a . Verification. Orna Grumberg. Lectures Material. winter . 2016-17. Lecture 3. Floyd Proof Rule for Partial Correctness. To prove . {q. ₁. }P{q. ₂. } . :. Choose. a set of . cut points . such that:. Ali Mili, NJIT. Third Spring Festival Workshop. Karuizawa. , March 2017. Acknowledgements. In collaboration . with. M. . Frias (Argentina), . J. . . Desharnais. (CDN), . W. . . Ghardallou. (TN), . N. Divergent views. “healthy expansion of moral concern” – Noam Chomsky. “new strain of . idealogical. virus” – Michael Barnard. “dictatorship of the well meaning and pure of heart” - Morris Dickstein. Chapter Objectives. To understand the differences between the three categories of program errors. To understand what it means to throw an exception and how to throw an exception in a function. To understand the effect of an uncaught exception and why you should catch exceptions. Formal . verification for. Java applications. Teodor. . Parvanov. May 26-27 ‘16, Sofia. 1. About me. I . currently work at VMware Bulgaria, working on standing up the fully automated Software-Defined Data . 2.1 Program Defects and "Bugs. 2.2 Exceptions. 1. Attendance Quiz #9. Program Correctness. 2. It uses more storage and makes your program run slower than if the function were not virtual.. That is why the designers of C gave the programmer control over which member functions are virtual and which are not.. Motivation Security Performance Bibliography ParameterSelectioninRing-LWE-basedFullyHomomorphicEncryptionRachelPlayerInformationSecurityGroup,RoyalHolloway,UniversityofLondonbasedonjointworkswithMarti