What is PAT? Installation System Components

◦ Editor◦ Simulator◦ Model Checkers

System Architecture Language Syntax Example Demonstration QA

Process Analysis Toolkit: an enhanced Simulator, Model Checker for concurrent systems

Visualized simulation, Full LTL model checking (under fairness), Refinement checking (behaviors + data).

Website◦ http://pat.comp.nus.edu.sg

Download (Demo)◦ Register your information◦ Download the latest version installation file

System Requirements◦ OS: Windows XP, Windows Vista and Windows Server

2000/2003/2008.◦ .NET Framework 2.0

Installation◦ Follow the installation wizard.

Update and Un-installation◦ Automatic update◦ Easy un-installation from program list

Editor: user friendly editing environment featured with ◦ Syntax highlight◦ Text editing: copy/paste, find/replace, (un)comments…◦ Multi-documents

Simulator◦ Step by Step simulator◦ State space generation (up to 300 states)◦ Trace replace

Model Checker◦ Deadlock freeness◦ Reachability testing◦ LTL property checking (with fairness assumptions)◦ Refinement checking

Global definitions: ◦ Constants ◦ Variables/arrays ◦ Channels ◦ Propositions

Expressions◦ Integer / Boolean variables◦ Math operators: +, -, *, /, mod, >,

<, ==, !=◦ Logic operators: &&, ||◦ If-then-else◦ while loop◦ User defined methods in C#

Assertion ◦ Deadlock-freeness ◦ Reachability ◦ LTL ◦ Refinement/equivalence

Process definitions ◦ Stop ◦ Skip ◦ Event prefixing ◦ Assignments ◦ Channel output/input ◦ Sequential composition ◦ External/Internal choice ◦ Conditional choice ◦ Case ◦ Guarded process ◦ Interleaving ◦ Parallel composition ◦ Interrupt ◦ Hiding ◦ Selecting ◦ Recursion

CSP Based language extended with variables. (F1 help in PAT)