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Test and Verification

Test and Verification, 2004

Emmanuel Fleury
Kim Guldstrand Larsen
Brian Nielsen
Arne Skou

There is a strong need for the use of advanced, systematic techniques
and tools that support the system validation process. [ Klaus Havelund ]

Brief course description

Software is becoming increasingly complex and there is a growing awareness within software engineering practice that both formal verification techniques as well as testing techniques are needed in order to deal with this growing complexity. This is in particular true in areas such as embedded systems used in consumer electronics, time dependent systems occurring in safety critical systems and communication protocols from the telecommunication industry.

The focus of this course is on techniques and software-tools that can be used to assess the quality and correctness of software systems. The first part of the course considers tools and techniques for formal verification of system designs. The last part of the course considers tools and techniques for testing system implementations.

In the first part of the course, particular emphasis will be put on our own real-time validation tool UPPAAL and the commercial tool visualSTATE. In the course we will toevaluate the usefulness of the various features of the two tools above. Emphasis will be on application and hands-on experiment with the tools on small case-studies.

Uppaal allows for the modeling, validation and automatic verification of properties of real-time systems and communication protocols The underlying description language and specification formalism --- timed automata and timed temporal logic --- will be dealt with in detail. The theoretical and practical aspects of the tool will be studied. To enable effective validation of systems special attention is given to modeling and abstraction techniques that help to limit the complexity of the models used.
visualSTATE is a toolset that supports analysis, design, prototyping, validation, and verification through simulation, code generation and testing of systems. The toolset is based on the UML and MSC standards languages. visualSTATE provides graphical editors, simulators, a C code generator targeting real-time OS and network protocols, and a design-level debugger.

In the second part of the course, emphasis will be on methods and techniques for testing.

In addition, the course will involve guest lectures from industry, e.g. presentations from IAR Systems A/S (the provider of visualSTATE) and presentations on testing in current industrial practise.

Objectives

The aims of the course are that the students become familiar with the possibility of validating software systems based on formal models and specifications (in particular of real-time and embedded systems) with the aid of software tools for the verification and analysis, and that they learn practical techniques and methods for testing software systems.

Preliminary schedule



No.	Lecture date	8.15-10.00	10.15-12.00	Slides	Subject
1.	February 11		E1-214	Lecture1.pdf	Introduction
2.	February 18	E1-214	PC-Lab	Lecture2.pdf	Modelling in UPPAAL. Timed Automata.
3.	February 25	E1-214	PC-Lab	Mod&Spec.ps Options.pdf	Verification Engine and Options of UPPAAL
4.	March 10	E1-214	PC-Lab		Introduction to visualSTATE
5.	March 12	E1-214	PC-Lab		More on visualSTATE
6.	March 17		E1-214		Henrik Leerberg, IAR Systems on visualSTATE
7.	March 24	PC-Lab	PC-Lab		Modelling Exercise
8.	March 31	E1-214	group rooms	Introduction	Introduction to Testing
9.	April 14	E1-214	group rooms	Slides	Classical Testing
10.	April 21				Object Oriented Testing / Guest Lecture Per Madsen
11.	April 28	E1-214	group rooms	Slides	FSM based testing
12.	April 30	E1-212	group rooms	Slides	LTS based testing and IOCO
13.	May 5	E1-214	group rooms	Slides	Testing Embedded Real-time Systens
14.			group rooms		Testing Excercise, Consultancy, Demo and Questions
15.	May 6		A4-106	Slides	Gæst: Niels Andersen, Gatehouse: Test i praksis

Job Announcements

Course material

[JPK] Joost-Pieter Katoen: " Concepts, Algorithms, and Tools for Model Checking ". (Lecture Notes)
[AD] Alexandre David: "Uppaal2k Tutorial "
[UPPAAL] Larsen, Pettersson, Yi: " UPPAAL in a Nutshell ", in Journal for Software Tools for Technology Transfer vol 1, 1997.
[LSW] Laarsen, Pettersson, Yi: "Continuous Modeling of Real Time and Hybrid Systems", * in Journal for Software Tools for Technology Transfer, vol 1, 1997.
[CW] Edmund M. Clarke and Jeanette M. Wing: " Formal Methods: State of the Art and Future Directions "
[JPK2]: Joost-Pieter Katoen: System Verification .
[CK] Edmund M. Clarke and Robert P. Kurshan: " Computer-Aided Verification "
[SALLT+] Jørgen Staunstrup, Henrik Reif Andersen, Kim G. Larsen, Henrik Leerberg, Niels Bo Theilgaard et al.: "Practical Verification of Embedded Software "
[HSLL] Klaus Havelund, Arne Skou, Kim G. Larsen, and Kristian Lund: " Formal Modeling and Analysis of an Audio/Video Protocol: An Industrial Case Study Using UPPAAL "
More will be added later ....