Disprover: Difference between revisions

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The ProB Disprover plugin for RODIN utilizes the ProB animator and model checker to automatically find counterexamples
The ProB Disprover plugin for RODIN utilizes the ProB animator and model checker to automatically find counterexamples
or proofs for a given proof obligation.
or proofs for a given proof obligation.
The Disprover is described in [http://www.stups.uni-duesseldorf.de/publications_detail.php?id=219 Debugging Event-B Models using the ProB Disprover Plug-in], Ligot, Bendisposto, Leuschel.


== Installation ==
== Installation ==
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== How to use it, how it works ==
== How to use it, how it works ==


[[Image:disprover-all.png]]: The proof obligation editor in Rodin presents the user with a number of Hypotheses and one Goal, to be proved. If the Disprover is installed, it is available in the tool bar alongside the other provers.
[http://www.prob2.de/Tutorial_Disprover Disprover Tutorial]
 
Upon selecting the Disprover, it builds a formula from the Hypotheses and the negated Goal.  The ProB model checker then tries to find a model for that formula.  If that is possible, this model is a counter example that will be presented back to the user in the proof tree. The disprover also checks if there cannot be a model for the formula. If this is the case it acts like a decision procedure, i.e., absence of a model is a proof for the goal. Unfortunately, sometimes neither a counter example nor a proof can be found.
 


[[Category:User documentation]]
[[Category:User documentation]]

Revision as of 13:33, 2 May 2016

ProB Disprover

The ProB Disprover plugin for RODIN utilizes the ProB animator and model checker to automatically find counterexamples or proofs for a given proof obligation.

Installation

The ProB Disprover is currently only available through the ProB Nightly Build Update Site (http://nightly.cobra.cs.uni-duesseldorf.de/rodin/updatesite/).


How to use it, how it works

Disprover Tutorial

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