Channel 9 - Entries tagged with Verification Microsoft http://mschnlnine.vo.llnwd.net/d1/Dev/App_Themes/C9/images/feedimage.png Channel 9 - Entries tagged with Verification http://channel9.msdn.com/Tags/verification Channel 9 keeps you up to date with the latest news and behind the scenes info from Microsoft that developers love to keep up with. From LINQ to SilverLight – Watch videos and hear about all the cool technologies coming and the people behind them. http://channel9.msdn.com/Tags/verification en Fri, 24 May 2013 10:01:28 GMT Fri, 24 May 2013 10:01:28 GMT Rev9 8 1 25 The Verification Corner - Stepwise Refinement In this episode of The Verification Corner, Kuat Yessenov and Rustan Leino, Principal Researcher in the Research in Software Engineering (RiSE) group at Microsoft Research,  show how a program can be constructed by stepwise refinement.  First, a high-level description of the program is given.  Then, some more detailed pseudo-code is developed.  Finally, an efficient data-structure representation is chosen and the corresponding changes to the program are written. There are several potential advantages of this approach.  One is that it lets the programmer design the program in finer and finer levels of granularity, rather than having to write all the fine details into the program text at once.  At each level, the verification tool kicks in and checks the correctness, thus proving feedback to the programmer.  A second advantage is that the more abstract descriptions of the program stay around, in a machine readable form that makes sure they stay up-to-date.  This means a new programmer on the project can start reading the more abstract versions in order to understand the program.

The Verification Corner is a show on Software Verification Techniques and Tools. The show is produced by the Research in Software Engineering team (RiSE), which coordinates Microsoft's research in Software Engineering in Redmond, USA.

]]> http://channel9.msdn.com/Blogs/Peli/The-Verification-Corner-Stepwise-Refinement In this episode of The Verification Corner, Kuat Yessenov and Rustan Leino, Principal Researcher in the Research in Software Engineering (RiSE) group at Microsoft Research,  show how a program can be constructed by stepwise refinement.  First, a high-level description of the program is given.  Then, some more detailed pseudo-code is developed.  Finally, an efficient data-structure representation is chosen and the corresponding changes to the program are written. There are several potential advantages of this approach.  One is that it lets the programmer design the program in finer and finer levels of granularity, rather than having to write all the fine details into the program text at once.  At each level, the verification tool kicks in and checks the correctness, thus proving feedback to the programmer.  A second advantage is that the more abstract descriptions of the program stay around, in a machine readable form that makes sure they stay up-to-date.  This means a new programmer on the project can start reading the more abstract versions in order to understand the program. Find past and future episodes of the The Verification Corner! The Verification Corner is a show on Software Verification Techniques and Tools. The show is produced by the Research in Software Engineering team (RiSE), which coordinates Microsoft's research in Software Engineering in Redmond, USA. 1333 http://channel9.msdn.com/Blogs/Peli/The-Verification-Corner-Stepwise-Refinement Fri, 08 Oct 2010 16:17:46 GMT http://channel9.msdn.com/Blogs/Peli/The-Verification-Corner-Stepwise-Refinement Peli de Halleux Peli de Halleux 3 http://channel9.msdn.com/Blogs/Peli/The-Verification-Corner-Stepwise-Refinement/RSS Microsoft Research RiSE Software Engineering Research Verification The Verification Corner - Loop Termination In this episode of The Verification Corner, Rustan Leino, Principal Researcher in the Research in Software Engineering (RiSE) group at Microsoft Research, shows how to prove loop termination. During his demonstration, Rustan presents the theoretical background information necessary to build the proof before modeling it using the Dafny language.

The Verification Corner is a show on Software Verification Techniques and Tools. The show is produced by the Research in Software Engineering team (RiSE), which coordinates Microsoft's research in Software Engineering in Redmond, USA.

]]> http://channel9.msdn.com/Blogs/Peli/The-Verification-Corner-Loop-Termination In this episode of The Verification Corner, Rustan Leino, Principal Researcher in the Research in Software Engineering (RiSE) group at Microsoft Research, shows how to prove loop termination. During his demonstration, Rustan presents the theoretical background information necessary to build the proof before modeling it using the Dafny language. Try Dafny in your web browser at http://rise4fun.com/dafny ! Find past and future episodes of the The Verification Corner! The Verification Corner is a show on Software Verification Techniques and Tools. The show is produced by the Research in Software Engineering team (RiSE), which coordinates Microsoft's research in Software Engineering in Redmond, USA. 1286 http://channel9.msdn.com/Blogs/Peli/The-Verification-Corner-Loop-Termination Mon, 29 Mar 2010 16:21:00 GMT http://channel9.msdn.com/Blogs/Peli/The-Verification-Corner-Loop-Termination Peli de Halleux Peli de Halleux 5 http://channel9.msdn.com/Blogs/Peli/The-Verification-Corner-Loop-Termination/RSS Microsoft Research RiSE Software Engineering Research Verification verification corner The Verification Corner - Specifications in Action with Spec# In this episode of The Verification Corner, Rustan Leino gives a demonstration of specifications in action. He builds a program that chunks strings into pieces, i.e. a chunker, in Spec#. During the demo, he shows the verifier, the developer, and the specifications fit together in the development cycle. Rustan Leino is a Principal Researcher in the Research in Software Engineering (RiSE) group at Microsoft Research.

The Verification Corner is a show on Software Verification Techniques and Tools. The show is produced by the Research in Software Engineering team (RiSE) , which coordinates Microsoft's research in Software Engineering in Redmond, USA.

]]> http://channel9.msdn.com/Blogs/Peli/The-Verification-Corner-Specifications-in-Action-with-SpecSharp In this episode of The Verification Corner, Rustan Leino gives a demonstration of specifications in action. He builds a program that chunks strings into pieces, i.e. a chunker, in Spec#. During the demo, he shows the verifier, the developer, and the specifications fit together in the development cycle. Rustan Leino is a Principal Researcher in the Research in Software Engineering (RiSE) group at Microsoft Research. Try Spec# in your web browser at http://rise4fun/specsharp! Find past and future episodes of the The Verification Corner! The Verification Corner is a show on Software Verification Techniques and Tools. The show is produced by the Research in Software Engineering team (RiSE) , which coordinates Microsoft's research in Software Engineering in Redmond, USA. 872 http://channel9.msdn.com/Blogs/Peli/The-Verification-Corner-Specifications-in-Action-with-SpecSharp Mon, 01 Mar 2010 15:44:00 GMT http://channel9.msdn.com/Blogs/Peli/The-Verification-Corner-Specifications-in-Action-with-SpecSharp Peli de Halleux Peli de Halleux 2 http://channel9.msdn.com/Blogs/Peli/The-Verification-Corner-Specifications-in-Action-with-SpecSharp/RSS Microsoft Research RiSE SpecSharp Verification verification corner Nikolaj Bjørner and Leonardo de Moura: The Z3 Constraint Solver Nikolaj Bjørner and Leonardo de Moura are Researchers in the Research in Software Engineering (RiSE) team at Microsoft Research. They are talking and demoing Z3, a high-performance SMT constraint solver. Solving constraint systems is the root of of many software analysis techniques so it is not surprising to see Z3 powering many tools developed at Microsoft: Spec#/Boogie, Pex, SLAM, SAGE, FORMULA, HAVOC and more.

In this video, you'll get a 10000 feet overview of Z3 and constraint solving in general with a demo on how to use the C# API. For more details, you will find many articles that should keep you busy for a while.

The Research in Software Engineering team (RiSE) coordinates Microsoft's research in Software Engineering in Redmond, USA.

]]> http://channel9.msdn.com/Blogs/Peli/The-Z3-Constraint-Solver Nikolaj Bjørner and Leonardo de Moura are Researchers in the Research in Software Engineering (RiSE) team at Microsoft Research. They are talking and demoing Z3, a high-performance SMT constraint solver. Solving constraint systems is the root of of many software analysis techniques so it is not surprising to see Z3 powering many tools developed at Microsoft: Spec#/Boogie, Pex, SLAM, SAGE, FORMULA, HAVOC and more.In this video, you'll get a 10000 feet overview of Z3 and constraint solving in general with a demo on how to use the C# API. For more details, you will find many articles that should keep you busy for a while. Try Z3 in your web browser at http://rise4fun.com/z3!Z3 home pageThe Research in Software Engineering team (RiSE) coordinates Microsoft's research in Software Engineering in Redmond, USA. 929 http://channel9.msdn.com/Blogs/Peli/The-Z3-Constraint-Solver Thu, 31 Dec 2009 19:00:00 GMT http://channel9.msdn.com/Blogs/Peli/The-Z3-Constraint-Solver Peli de Halleux Peli de Halleux 11 http://channel9.msdn.com/Blogs/Peli/The-Z3-Constraint-Solver/RSS Microsoft Research RiSE Software Engineering Research Verification Z3 Francesco Logozzo - Static Checking with Code Contracts for .NET Francesco Logozzo, a researcher at the Research in Software Engineering (RiSE) group at Microsoft Research, gives a demo of the Static Checker that comes with Code Contracts for .NET tools. The static checker allows you to verify that all the assertions in your code hold without actually running the code!

Francesco also goes to the whiteboard and gives us a short tutorial on Abstract Interpretation, the technique used by the static checker to prove the assertions.

The Research in Software Engineering team (RiSE) coordinates Microsoft's research in Software Engineering in Redmond, USA.

]]> http://channel9.msdn.com/Blogs/Peli/Static-Checking-with-Code-Contracts-for-NET Francesco Logozzo, a researcher at the Research in Software Engineering (RiSE) group at Microsoft Research, gives a demo of the Static Checker that comes with Code Contracts for .NET tools. The static checker allows you to verify that all the assertions in your code hold without actually running the code!Francesco also goes to the whiteboard and gives us a short tutorial on Abstract Interpretation, the technique used by the static checker to prove the assertions. Try the Code Contracts in your web browser at http://pex4fun.com/absverified! Code Contracts ForumsCode Contracts Home pageThe Research in Software Engineering team (RiSE) coordinates Microsoft's research in Software Engineering in Redmond, USA. 1149 http://channel9.msdn.com/Blogs/Peli/Static-Checking-with-Code-Contracts-for-NET Tue, 22 Dec 2009 19:47:00 GMT http://channel9.msdn.com/Blogs/Peli/Static-Checking-with-Code-Contracts-for-NET Peli de Halleux Peli de Halleux 4 http://channel9.msdn.com/Blogs/Peli/Static-Checking-with-Code-Contracts-for-NET/RSS .NET 4.0 .NET Framework 4.0 code contracts Microsoft Research RiSE Software Engineering Research Verification Juan Chen and Nikhil Swamy: FINE, Functional Programming for End-to-End Security Verification Juan Chen and Nikhil Swamy, two researchers at the Research in Software Engineering group, present FINE, a new programming language for .NET.

Software systems are governed by increasingly complex security policies. Ensuring that a system properly enforces its policy is hard. FINE is a new programming language (similar to F#) whose type system can be used to check that rich, stateful authorization and information flow policies are properly enforced. FINE is compiled to DCIL, a new minimal extension of .NET CIL. Our compiler carries type information throughout and allows DCIL programs to be verified independently for security.

In this video, Juan an Nikhil give the big picture and a shiny demo of FINE.

 The Research in Software Engineering team (RiSE) coordinates Microsoft's research in Software Engineering in Redmond, USA.

]]> http://channel9.msdn.com/Blogs/Peli/FINE-a-Compiler-for-End-to-End-Security-Verification Juan Chen and Nikhil Swamy, two researchers at the Research in Software Engineering group, present FINE, a new programming language for .NET.Software systems are governed by increasingly complex security policies. Ensuring that a system properly enforces its policy is hard. FINE is a new programming language (similar to F#) whose type system can be used to check that rich, stateful authorization and information flow policies are properly enforced. FINE is compiled to DCIL, a new minimal extension of .NET CIL. Our compiler carries type information throughout and allows DCIL programs to be verified independently for security.In this video, Juan an Nikhil give the big picture and a shiny demo of FINE. Try Fine in your web browser at http://rise4fun.com/fine!FINE home page Read the article about FINE  The Research in Software Engineering team (RiSE) coordinates Microsoft's research in Software Engineering in Redmond, USA. 903 http://channel9.msdn.com/Blogs/Peli/FINE-a-Compiler-for-End-to-End-Security-Verification Thu, 10 Dec 2009 19:12:00 GMT http://channel9.msdn.com/Blogs/Peli/FINE-a-Compiler-for-End-to-End-Security-Verification Peli de Halleux Peli de Halleux 3 http://channel9.msdn.com/Blogs/Peli/FINE-a-Compiler-for-End-to-End-Security-Verification/RSS F# Functional Programming Programming Languages RiSE Security Software Engineering Research Verification Mike Barnett - Getting started with Code Contracts in Visual Studio 2008 Mike Barnett gives a step-by-step tutorial on Code Contracts, a new way to express preconditions, postconditions and invariants in any .NET language. The contracts team have built a runtime instrumentation tool and also advanced static checkers that can understand and reason about contracts.

The Code Contracts library can be downloaded for Visual Studio 2008 from the DevLabs web site. They will be part of the .Net framework 4.0!!!

The Research in Software Engineering team (RiSE) coordinates Microsoft's research in Software Engineering in Redmond, USA.

]]> http://channel9.msdn.com/Blogs/Peli/Getting-started-with-Code-Contracts-in-Visual-Studio-2008 Mike Barnett gives a step-by-step tutorial on Code Contracts, a new way to express preconditions, postconditions and invariants in any .NET language. The contracts team have built a runtime instrumentation tool and also advanced static checkers that can understand and reason about contracts. The Code Contracts library can be downloaded for Visual Studio 2008 from the DevLabs web site. They will be part of the .Net framework 4.0!!! Contracts @ DevLabs: http://msdn.microsoft.com/en-us/devlabs/dd491992.aspx Contracts @ Microsoft Research: http://research.microsoft.com/contracts Contracts forums: http://social.msdn.microsoft.com/Forums/en-US/codecontracts/threads/  The Research in Software Engineering team (RiSE) coordinates Microsoft's research in Software Engineering in Redmond, USA. 1398 http://channel9.msdn.com/Blogs/Peli/Getting-started-with-Code-Contracts-in-Visual-Studio-2008 Mon, 23 Feb 2009 22:40:00 GMT http://channel9.msdn.com/Blogs/Peli/Getting-started-with-Code-Contracts-in-Visual-Studio-2008 Peli de Halleux Peli de Halleux 11 http://channel9.msdn.com/Blogs/Peli/Getting-started-with-Code-Contracts-in-Visual-Studio-2008/RSS code contracts DevLabs RiSE Software Engineering Research SpecSharp Verification Visual Studio Michal Moskal - VCC, The Verifying C Compiler Michal Moskal gives us a short introduction at the Verifying C Compiler (VCC) project. VCC is a tool that proves correctness of annotated concurrent C programs or finds problems in them. VCC extends C with design by contract features, like pre- and postcondition as well as type invariants. The current primary goal of the VCC project is to to verify Microsoft Hyper-V. Hyper-V is a hypervisor -- a thin layer of software that sits just above the hardware and beneath one or more operating systems. The Hypervisor verification project is a cooperation between European Microsoft Innovation Center in Aachen, Germany the RiSE group at Microsoft Research in Redmond and the Saarland University in Saarbrücken, Germany.

The Research in Software Engineering team (RiSE) coordinates Microsoft's research in Software Engineering in Redmond, USA.

]]> http://channel9.msdn.com/Blogs/Peli/Michal-Moskal-and-The-Verified-C-Compiler Michal Moskal gives us a short introduction at the Verifying C Compiler (VCC) project. VCC is a tool that proves correctness of annotated concurrent C programs or finds problems in them. VCC extends C with design by contract features, like pre- and postcondition as well as type invariants. The current primary goal of the VCC project is to to verify Microsoft Hyper-V. Hyper-V is a hypervisor -- a thin layer of software that sits just above the hardware and beneath one or more operating systems. The Hypervisor verification project is a cooperation between European Microsoft Innovation Center in Aachen, Germany the RiSE group at Microsoft Research in Redmond and the Saarland University in Saarbrücken, Germany. Try VCC in your web browser at http://rise4fun.com/vcc !VCC slide deck, get the high-level picture and more details, VCC home page, all you want to know. Unfortunately, there is currently no download available of VCC.  The Research in Software Engineering team (RiSE) coordinates Microsoft's research in Software Engineering in Redmond, USA. 1324 http://channel9.msdn.com/Blogs/Peli/Michal-Moskal-and-The-Verified-C-Compiler Fri, 30 Jan 2009 10:25:00 GMT http://channel9.msdn.com/Blogs/Peli/Michal-Moskal-and-The-Verified-C-Compiler Peli de Halleux Peli de Halleux 0 http://channel9.msdn.com/Blogs/Peli/Michal-Moskal-and-The-Verified-C-Compiler/RSS C Compilers HyperV Hyper-V Research RiSE Software Engineering Research Testing vcc Verification