2013-09-25 - (1 min read)
We are very happy to introduce a new release of TAPAAL 2.4.1 that contains some bug fixes, namely:
a problem with loading verifyta.exe file (UPPAAL engine) on some windows installations running Java 6, a bug in simulator when used with urgent transitions, corrects the interpretation of verification results as some are actually valid also for the continuous semantics, and propertly terminates processes run via the batch processing dialog.
2013-09-10 - (1 min read)
We are very happy to introduce a new release of TAPAAL 2.4.0 that
adds the possibility to model urgent transitions (enabled urgent transition disables time passing), adds deadlock as one of a possible propositions in the query dialog (a marking is a deadlock if after any delay no transition gets ever enabled), improves the simulator by adding a random automated simulator and allowing to export/import traces, fixes a number of bugs and contains some GUI improvements, and makes performance improvements in the discrete-time engine verifydtapn.
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2013-04-30 - (1 min read)
We are very happy to introduce a new release of TAPAAL 2.3.0 that
supports Java 7 (and Java 6), has a considerably improved discrete verification engine verifydtapn 2.0 which includes semi-symbolic optimization called timed-darts and memory optimization option PTrie, has a brand new simulator that shows the currently enabled transitions (red ones) and future-enabled transitions (blue ones), supports native file open/save dialogs, contains numerous GUI improvements (constant highlight, deadlock information in trace simulation), and fixes a number of bugs.
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2013-01-01 - (1 min read)
We are very happy to introduce a new release of TAPAAL 2.4.2 that contains some bug fixes, namely:
explanation for verification results in batch processing and correction of PTrie and Dart options for the verifydtapn engine editor improvements for urgent transitions and shared places/transitions problem with UPPAAL translations for models with zero tokens and zero extra tokens deadlock reporting problem in simulator loading invalid XML files problem with removing orphan transitions that have inhibitor arcs “some trace” option is now remembered undo/redo of urgency flag fix for boundedness check with verifydtapn engine a few other bug fixes.
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2012-12-05 - (1 min read)
TAPAAL 2.2.1 is fixing a few bugs in the discrete verification engine of TAPAAL (verifydtapn), namely:
a memory leak, a problem with search termination for liveness properties, and a problem in computing successors for nets with weights The GUI has not been modified since 2.2.0.
2012-10-22 - (1 min read)
TAPAAL 2.2.0 is a major upgrade of the tool featuring a new open source engine for closed timed-arc Petri nets. The main new features are:
new TAPAAL engine called verifydtapn for discrete verification of closed nets updated TAPAAL engine verifytapn transition statistics that shows how many times transitions were enabled during the search support for weighted arcs in the editor, simulator and the new engine fully adjustable workspace that can be saved in preferences new shortcuts, namely the arrows that can be used both in editor and simulator (e.
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2012-10-16 - (1 min read)
TAPAAL 2.1.3 is a maintenance release fixing some minor problems in the editor when multiple objects were selected and when deleting places. It also fixes a problem in a simulator where arrows used in the delay field affected also the current position in the trace.
2012-09-30 - (1 min read)
TAPAAL 2.1.2 is a maintenance release fixing a few smaller bugs in the GUI as well as the interpretation of the verification answers for EG and AF queries. A recommended update for all TAPAAL users.
2012-07-22 - (1 min read)
TAPAAL 2.1.1 is a maintenance release fixing several bugs and
improving the speed of loading large models and moving/sorting in the component list, introducing a new update notification dialog, fixing a rare memory leak in the TAPAAL engine verifytapn, possibility to change the values of constants using the arrows left/right, user preferences are now relative to the version of TAPAAL, tool tips can be disabled, query dialog allows to create any query and suggests automatically the most suitable verification engine, and it is now possible to move in the error trace using the arrows up/down while the arrows left/right change the currently displayed component.
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2012-03-17 - (1 min read)
TAPAAL 2.1.0 is a major release with several new features and GUI improvements. The main updates include:
A new version of TAPAAL engine that allows to use discrete inclusion technique even for queries that are now upward closed. Numerous GUI improvements including a fully resizable panels, possibility for different workspace configurations for showing/hiding the interval [0,inf), and more. During the verification process there is now displayed a timer. Simulator now displays a clickable list of enabled transitions in all active components.
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