Jun 14, 2012 we present snip, an efficient model checker for software product lines spls. In this paper, we consider model checking partial software product line designs, i. Variability in software product lines is generally expressed in terms of features, and the number of potential products is exponential in the number of features. We have an incredible community, but sometimes you need a little more. Nowadays, it is widely accepted that its application will enhance and complement existing validation techniques as simulation and test. Then check that f is true in k k f, where f is the specification of the program. Snipe2 software upgrade motorhomefun the motorhome. Whereas classical model checkers are only capable of checking properties against each individual product in the product. Free selfhosted users get great support via github and gitter.
However, according to the best of our knowledge, there are. Product features snipeit free open source it asset. Having followed the instructions, it all seemed to go as expected and my software in the controller has now gone from version 15126 to 16082. However if parts of the product line form an individual product line itself, multiple feature models are almost. Pricing snipeit free open source asset management software. Various approaches to model checking software 6 hypothesis model checking is an algorithmic approach to analysis of finitestate systems model checking has been originally developed for analysis of hardware designs and communication protocols model checking algorithms and tools have to be tuned to be applicable to analysis of software.
Model checking systems there are many other successful examples of the use of model checking in hardware and protocol verification. Specifically, we provide a data point by reporting on a positive experience in model checking a. Modelbased testing for software product lines a dissertation submitted in partial fulfillment of the requirements for the degree of doctor of philosophy at george mason university by erika mir olimpiew master of science, virginia commonwealth university, 1997 bachelor of science, virginia commonwealth university, 1995. Model checking for software product lines with snip core. Pdf model checking for software product lines with snip. Features include management of assets, users, licenses, accessories, consumables and components, as well as twofactor authentication, ldapad syncing, and asset acceptance confirmation. Software product line engineering software product line spl fil f dt tfamily of products systems parnas, w i seiweiss, sei software product line engineering software engineering for a family of productssoftware engineering for a family of products software variability keyyp p g g problem in software product line. Systematic software testing state space product of os processes dynamic semantics systematically drive the system along all its state space paths. The smaller and simpler the dependencies are, the better. Cofer advanced technology center, rockwell collins, cedar rapids, ia 52498 abstract the increasing popularity of modelbased development and the growing power of model checkers are making it practical to use formal verification for.
I can appreciate the amount of effort that went into and continues to go into developing of such a system. Suppose we would like to check that the search tree is always ordered. Model checking software product lines with snip springerlink. Fsm state space can itself be the product of smaller fsms model checking is usually linear in the size of the state space, but the size of the state space is usually exponential or worse in the system description program.
Read model checking software product lines with snip, international journal on software tools for technology transfer on deepdyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips. I try to explain here in a nontechnical manner what is model checking. Model checking of software how to apply model checking to analyze software. I recommend it to software testing researchers, practitioners, and managers. Snipe it is and always will be free, but we also know that the only thing it departments have less of than money is time. Paid hosted customers get even better support directly from snipe it engineers.
It still might be a bit confusing that the printed trace contains some source lines twice. Abstract we present snip, an efficient model checker for software product lines spls. Check out the snipeit website for a demo, a comprehensive list of features, screenshots. The other two deal with the operational flight program of an unmanned aerial vehicle. We find the software perfect for use with managing serialized assets. In section 2, we give a short introduction to software product lines using a running example and we present an overview on important software analysis that have been applied to soft.
But i think the formulas should be written manually, for example, the cnf file can be. Whereas classical model checkers are only capable of checking properties against each individual product in the product line, snip exploits specifically designed algorithms to check all products in a single step. Ignoring the details of its choice generation mechanism, this is caused by jpf executing bytecode instructions, not source lines, and a single source line can easily get translated into a number of bytecode. Software product line an overview sciencedirect topics. The main difference fromnormal, oneofakind software development is a logical separationbetween the development of core, reusable software assets the platform,and actual applications. Modeling and model checking software product lines. A state of the program p is a valuation of the variables from x. Integrated modeling of software product lines with feature. What is your experience with software model checking. The remainder of this survey is structured as follows. We shall represent sets of states using constraints. Since 2011, the model checking contest mcc compare performances of model checking tools designed to analyze highly concurrent systems. Statespace exploration is fundamentally hard np, pspace or worse. Whereas classical model checkers are only capable of checking properties against each individual product in the product line.
Show model checking can be included in an iterative development cycle. Expected behavior or desired behavior if a feature request the email to the user should show the asset model in the model section of the email that is sent upon checking out an asset. Software product line engineering is an approach to costefficiently derive tailored products to markets and customers, utilizing common components and services in a planned manner. Model checking has had a big impact on formal veri. Page 2 july 2011 model checking model checking mc systematic statespace exploration exhaustive testing. Expected behavior or desired behavior if a feature request when checking out a component to an asset, i would expect to be able to later checkin that component if things change. Software product line engineering with feature models. Installation should take around twenty minutes or less, if nothing goes wrong, and if youre pretty familiar with web server configuration. There are some languages which describe the constraints in feature model.
We present glass box model checking, a type of software model checking that can achieve a high degree of state space reduction in the presence of complex data. Model checking is a powerful approach for the formal verification of software. Model based testing for software product lines a dissertation submitted in partial fulfillment of the requirements for the degree of doctor of philosophy at george mason university by erika mir olimpiew master of science, virginia commonwealth university, 1997 bachelor of science, virginia commonwealth university, 1995. Model checking software bim collaboration software. Model checking check whether the system satisfies a temporallogic formula. The snipe 2 uses what they call a type c controller and the steps for upgrading this model are almost at the end of the document. Section 8, liveness and termination, briefly offers some hints for working in this area. Whereas classical model checkers are only capable of checking properties against each individual product. If this all looks too overwhelming for you, we do offer affordable hosted solutions for folks who want to use snipe it but dont know how to run a web server, or dont have time to keep up with updates.
The role of feature modeling in software product line. Simulationbased abstractions for software productline. The fact that industry intel, ibm, motorola is starting to use model checking is encouraging. Pdf model checking software product lines with snip. Below are some wellknown model checkers, categorized by whether the specification is a formula or an. Software product lines however, before we introduce the example, well take a small detour into the basis of sple. Jun 10, 2012 we used the java path finder model checker to verify some security deadlock, race condition and temporal properties using linear temporal logic to specify them. Snipeit is a free, open source it asset management system that helps you manage assets, software licenses, accessories, components and consumables within your organization. Expected behavior or desired behavior if a feature request ability to add a manufacturer actual behavior can not figure out how to add a manufacturer please confirm you have done the following before posting your bug report. We offer affordable hosting packages where we take care of the server setup, the installation, all of the maintenance and upgrades, plus you get priority support for any issues that might come up. Model checking algorithm the model checking problem can be stated as follows. Model checking has been around for more than 20 years now, and has migrated from the purely research to the industrial arena. Software product line feature model stack overflow. However, for an spl with nfeatures, up to 2 n executions of.
Support snipe it free open source it asset management. Software model checking guillaume brat, dimitra giannakopoulou, klaus havelund, mike lowry, phil oh, corina pasareanu, charles pecheur, john penix, willem visser and matt dwyer, john hatcliff kansas state alex groce, flavio lerda cmu nasa ames automated software engineering group. Quantitative analysis of probabilistic models of software product lines with statistical model checking maurice h. Product lines have been applied to other engineering fields for decades, while being quite recently introduced in software engineering. It automatically provides complete proofs of correctness, or explains, via counterexamples, why a system is not correct. Analysis strategies for software product lines 3 we refer the reader to a recent survey benavides et al. Modeling languages programming languages model checking systematic testing statespace.
Program model checking has a major problem with state. Aug 23, 2016 the snipe 2 uses what they call a type c controller and the steps for upgrading this model are almost at the end of the document. The case studies conclude that model checking can be effectively used to discover errors early in the development life cycle, for many classes of models. Software model checking via automatic test generation patrice godefroid microsoft research designs examples. Variability in software product lines is generally expressed in terms of features, and the number of potential. The paper presents a good overview of the state of the art in software model checking. Model checking model checking systematic statespace exploration exhaustive testing. How to use the check model tool to identify possible problems with your model that can affect data transfer to other software packages.
Snipeit is and always will be free, but we also know that the only thing it departments have less of than money is time. Programming languages logic algorithms embedded systems os system programming cyber physical system. In computer science, model checking or property checking is a method for checking whether a finitestate model of a system meets a given specification a. Variability in software prod uct lines is generally expressed in terms of features, and the number of potential products is exponential in the number of features.
We are interested in the question of whether or not model checking techniques can be applied to large software specifications. Snipeit was made for it asset management, to enable it departments to track who has which laptop, when it was purchased, which software licenses and accessories are available, and so on. In each case, such features can be compiled down to the \simple model. The main difference from normal, oneofakind software development, is a logical separation between the development of core, reusable software assets the platform, and actual applications.
Software model checking 3 channels that are used for message passing, etc. More recently, software model checking has been in. For many product line applications, one feature model is a good choice. Check objects for modeling problems alias products 2016. Model checking partial software product line designs. Since model checking examines every possible combination of input and state, it is also far more effective at finding design errors than testing, which can only check a small fraction of the possible inputs and states. Model checking background undergraduate cs classes contributing to this area software engineering ok counter examples or system modeling requirement properties.
This is typically associated with hardware or software systems, where the specification contains liveness requirements such as avoidance of livelock as well as safety requirements such as. Support snipeit free open source it asset management. Whereas classical model checkers are only capa ble of checking properties against each individual product in the product line, snip exploits specifically designed algo rithms to. Software product lines spls, or software product line development, refers to software engineering methods, tools and techniques for creating a collection of similar software systems from a shared set of software assets using a common means of production. There are guidelines to follow but in most cases do not cover sufficient portions of the software product. Test generation using model checking university of toronto. Oct 04, 2009 section 8, liveness and termination, briefly offers some hints for working in this area. First, i must positively express gratitude for the great system that snipe it is. We do not offer email support for free selfhosted users, however our community support on github is very responsive. Abstractsoftware product lines spls are an approach to improve reusability of software in a large number of products that share a common set of features.
In this paper we introduce the process algebra plccs as a product line extension of ccs and show how to model the overall behavior of an entire family within plccs. The carnegie mellon software engineering institute defines a software product line as. It is our premise that the fraction of mistakes intercepted can be increased, specifically for distributed systems designs, if we complement traditional testing techniques with software model checking techniques. In spls, feature models fms are frequently used to model commonalities and variabilities. Quantitative analysis of probabilistic models of software. It supports classical assertions like notnull on java bytecode it is for program model checking. Abstract testing in the software industry is, in general an ad hoc task. Model checking of software patrice godefroid bell laboratories, lucent technologies. This project is actively developed and we release quite frequently. Software model checking guillaume brat, dimitra giannakopoulou, klaus havelund, mike lowry, phil oh, corina pasareanu. Choose whether to check only surfaces, only curves or both.
The time spent model checking is recovered several times over by avoiding rework during unit and integration testing. Software model checking via automatic test generation. Per runeson, emelie engstrom, in advances in computers, 2012. Here, the author provides a well written and basic introduction to the new technique. Section 2 describes the basic algorithm for temporal logic model checking, as well as some of the breakthroughs in. Software product line engineering combines the individual developments of systems to the development of a family of systems consisting of common and variable assets. Show a list of modeling problems choose evaluate check model. Symbolic model checking has been highly successful when applied to hardware systems. Software model checking asoftmc is an effective technique for analyzing behavioral properties of software systems abased on a combination of static analysis and traditional modelchecking techniques aabstraction is essential for scalability. Section 9 relates model checking to software testing and type systems, and section 10 presents a general conclusion. Snipe it is a free, open source it asset management system. However, before we introduce the example, we will take a small detour into the basis of sple. Test generation using model checking hung tran 931470260 prof marsha chechik. Combine static analysis and model checking use static analysis to extract a model k from a boolean abstraction of the program.
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