New Features

UPPAAL 3.4 extends its predecessor UPPAAL 3.2 (UPPAAL2k) with a number of new features, including:

Performance Improvements

• Shared passed and waiting list scheme results in reduced memory consumption and improved performance.
• New memory management scheme results in less memory fragmentation and consequently improved performance.
• New modular pipelined architecture.
• New extrapolation algorithms.

Language Improvements

• New operators:
  • Logical: && (logical and), || (logical or), ! (logical negation),
  • Bitwise: ^ (xor), & (bitwise and), | (bitwise or),
  • Bit shift: << (left), >> (right)
  • Numerical: % (modulo), <? (min), >? (max)
  • Assignments: +=, -=, *=, /=, ^=, <<=, >>=, %=
  • Prefix and postfix: ++ (increment), -- (decrement)
• Multi dimensional arrays.
• Arrays of integers, channels, clocks, constants.
• Disjunctions over non-clock expressions are allowed in guards.
• Array initialiser.
• Use of non-constant integer expressions in comparisons with and assignments to clocks are allowed.
• Booleans and integers are type compatible.
• Broadcast channels.

User Interface Improvements

• Message Sequence Charts.
• New tool bar.
• Persistent settings.
• New editor component.
• New help system.
• List of all errors.
• Printing in simulator.
• Command line tool (verifyta) handles TA, XTA, and XML files directly.
• Support for generating shortest and fastest traces.
• Simulator applies guards of selected transition to current state.