Difference between pages "AnimB roadmap" and "FAQ"

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imported>Mathieu
 
imported>Laurent
 
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The following array describes the features which will be developed.
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== General ==
{| border="1" cellpadding="20" cellspacing="0"
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=== What is Event-B? ===
!Feature
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'''Event-B''' is a formal method for system-level modelling and analysis. Key features of Event-B are the use of set theory as a modelling notation, the use of refinement to represent systems at different abstraction levels and the use of mathematical proof to verify consistency between refinement levels. More details are available in http://www.event-b.org/
!Description
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!Date
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=== What is Rodin? ===
|-
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The '''Rodin Platform''' is an Eclipse-based IDE for Event-B that provides effective support for refinement and mathematical proof. The platform is open source, contributes to the Eclipse framework and is further extendable with plugins.
|History saving
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|The history saving allows the user to save and replay a saved history
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=== Where does the ''Rodin'' name come from? ===
| -
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|-
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== General Tool Usage? ==
|Predicate evaluator
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|Today the predicate evaluator don't use type information to infer a set that allow iteration of variable.
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=== How do I install external plug-ins without using Eclipse Update Manager? ===
| -
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Although it is preferred to install additional plug-ins into the Rodin platform using the Update Manager of Eclipse, this might not always be practical. In this case, a manner to install these plug-ins is to emulate either manually or using ad-hoc scripts the operations normally performed by the Update Manager.
|-
+
 
|Sorter on event table column
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This manual installation of plug-ins is described in ''[[Installing external plug-ins manually]]''.
|The events, constants and variables are listed using the editing order given by the Rodin database. This new feature could allow the user to manage the order of events, constants and variables.
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| -
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=== The builder takes too long ===
|-
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Generally, the builder spends most of its time attempting to prove POs.  There are basically two ways to get it out of the way:
|Extension of predicate evaluator
+
* the first one is to disable the automated prover in the Preferences panel.
|Today, the predicate evaluator don't allow the variable quantification with function sets (injection, bijection, ...)
+
* the second one is to mark some PO as reviewed when you don't want the auto-prover to attempt them anymore.
| -
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Note that if you disable the automated prover, you always can run it later on some files by using the contextual menu in the event-B Explorer.
|}
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[[Category:Work in progress]]
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To disable the automated prover, open Rodin <tt>Preferences</tt> (menu {{menu|Window > Preferences...}}).  In the tree in the left-hand panel, select {{menu|Event-B > Sequent Prover > Auto-tactic}}. Then, in the right-hand panel ensure that the checkbox labelled <tt>Enable auto-tactic for proving</tt> is disabled.
[[Category:AnimB]]
+
 
 +
To review a proof obligation, just open it in the interactive prover, then click on the ''review'' button (this is a round blue button with a ''R'' in the proof control toolbar).  The proof obligation should now labelled with the same icon in the event-B explorer.
 +
 
 +
===What are the ASCII shortcuts for mathematical operators===
 +
 
 +
The ASCII shortcuts that can be used for entering mathematical operators are described in the help of the event-B keyboard plug-in.  In the help system, this page has the following path {{menu|Event-B Keyboard User Guide > Getting Started > Special Combos}}.
 +
 
 +
This page is also available in the dynamic help system.  The advantage of using dynamic help is that it allows to display the help page side-by-side with the other views and editors.  To start the dynamic help, click {{menu|Help > Dynamic Help}}, then click {{menu|All Topics}} and select the page in the tree.
 +
 
 +
== Modeling and Proving==
 +
=== Witness for {{Ident|Xyz}} missing. Default witness generated ===
 +
A parameter as disappeared during a refinement. If this is intentional, you have to add a [[Witnesses (Modelling Language)|witness]] telling how the abstract parameter is refined.
 +
 
 +
=== I've added a witness for {{ident|Xyz}} but it keeps saying ''"Identifier {{ident|Xyz}} has not been defined"'' ===
 +
As specified in the [[Witnesses (Modelling Language)|modelling language manual]], the witness must be labelled by the name {{Ident|Xyz}} of the concrete variable being concerned.
 +
 
 +
=== How can I do a Proof by Induction? ===
 +
[[Induction proof]] will give you some tips about it.
 +
 
 +
=== Labels  of proof tree nodes explained ===
 +
* {{ident|ah}} means ''add hypothesis'',
 +
* {{ident|eh}} means rewrite with ''equality from hypothesis'' from left to right,
 +
* {{ident|he}} means rewrite with ''equality from hypothesis'' from right to left,
 +
* {{ident|rv}} tell us that this goal as been manually [[The_Proving_Perspective_(Rodin_User_Manual)#The_Proof_Control_Window|reviewed]],
 +
* {{ident|sl/ds}} means ''selection/deselection'',
 +
* {ident|PP}} means ''discharged by the predicate prover''
 +
* {{ident|ML}} means ''discharged by the mono lemma prover''
 +
 
 +
== Developer FAQ ==
 +
=== Using Rodin-CVS from eclipse consumes too much memory ===
 +
You can [[#How do I generate a Rodin product from CVS|generate a product]] and use it as if it was a normal release.
 +
 
 +
=== How do I generate a ''Rodin'' product from CVS? ===
 +
In the project ''org.rodinp.platform'', right-click on ''Rodin.platform'' and select {{menu|export}}. Choose {{menu|Plug-in Development > Eclipse product}} and click on {{button|Next}} type <tt>Rodin</tt> for the ''Root directory'', and choose the ''Destination directory''. Then click on {{button|Finish}}.
 +
 
 +
=== How do I collect debug information from the Rodin platform? ===
 +
You may see the log in the console by appending <tt>-consoleLog</tt> to the rodin executable: <code>rodin -consoleLog</code>
 +
 
 +
You may add specific debug informations by setting specific options: <code>rodin --debug options.file -consoleLog</code> where {{file|options.file}} contains something like:
 +
<pre>
 +
org.pluginname/debug = true
 +
org.pluginname/debug/optionaldebug = true
 +
</pre>
 +
where'' optionaldebug'' may be found in the {{file|org.pluginname/.options}} file in the [http://rodin-b-sharp.cvs.sourceforge.net/rodin-b-sharp/ rodin source repository].
 +
 
 +
=== How do I submit a patch? ===
 +
Good practises for patch submission are described [[How to Submit Patches|here]].
 +
 
 +
=== How do I track memory leaks? ===
 +
If you suspect that some memory isn't freed, you may find some useful directions on how to track memory leaks [[Tracking Memory Leaks|here]].
 +
 
 +
[[Category:User FAQ]]
 +
[[Category:Developer FAQ]]

Revision as of 15:10, 11 February 2009

General

What is Event-B?

Event-B is a formal method for system-level modelling and analysis. Key features of Event-B are the use of set theory as a modelling notation, the use of refinement to represent systems at different abstraction levels and the use of mathematical proof to verify consistency between refinement levels. More details are available in http://www.event-b.org/

What is Rodin?

The Rodin Platform is an Eclipse-based IDE for Event-B that provides effective support for refinement and mathematical proof. The platform is open source, contributes to the Eclipse framework and is further extendable with plugins.

Where does the Rodin name come from?

General Tool Usage?

How do I install external plug-ins without using Eclipse Update Manager?

Although it is preferred to install additional plug-ins into the Rodin platform using the Update Manager of Eclipse, this might not always be practical. In this case, a manner to install these plug-ins is to emulate either manually or using ad-hoc scripts the operations normally performed by the Update Manager.

This manual installation of plug-ins is described in Installing external plug-ins manually.

The builder takes too long

Generally, the builder spends most of its time attempting to prove POs. There are basically two ways to get it out of the way:

  • the first one is to disable the automated prover in the Preferences panel.
  • the second one is to mark some PO as reviewed when you don't want the auto-prover to attempt them anymore.

Note that if you disable the automated prover, you always can run it later on some files by using the contextual menu in the event-B Explorer.

To disable the automated prover, open Rodin Preferences (menu Window > Preferences...). In the tree in the left-hand panel, select Event-B > Sequent Prover > Auto-tactic. Then, in the right-hand panel ensure that the checkbox labelled Enable auto-tactic for proving is disabled.

To review a proof obligation, just open it in the interactive prover, then click on the review button (this is a round blue button with a R in the proof control toolbar). The proof obligation should now labelled with the same icon in the event-B explorer.

What are the ASCII shortcuts for mathematical operators

The ASCII shortcuts that can be used for entering mathematical operators are described in the help of the event-B keyboard plug-in. In the help system, this page has the following path Event-B Keyboard User Guide > Getting Started > Special Combos.

This page is also available in the dynamic help system. The advantage of using dynamic help is that it allows to display the help page side-by-side with the other views and editors. To start the dynamic help, click Help > Dynamic Help, then click All Topics and select the page in the tree.

Modeling and Proving

Witness for
Xyz
missing. Default witness generated

A parameter as disappeared during a refinement. If this is intentional, you have to add a witness telling how the abstract parameter is refined.

I've added a witness for
Xyz
but it keeps saying "Identifier
Xyz
has not been defined"

As specified in the modelling language manual, the witness must be labelled by the name

Xyz

of the concrete variable being concerned.

How can I do a Proof by Induction?

Induction proof will give you some tips about it.

Labels of proof tree nodes explained

  • ah
    means add hypothesis,
  • eh
    means rewrite with equality from hypothesis from left to right,
  • he
    means rewrite with equality from hypothesis from right to left,
  • rv
    tell us that this goal as been manually reviewed,
  • sl/ds
    means selection/deselection,
  • {ident|PP}} means discharged by the predicate prover
  • ML
    means discharged by the mono lemma prover

Developer FAQ

Using Rodin-CVS from eclipse consumes too much memory

You can generate a product and use it as if it was a normal release.

How do I generate a Rodin product from CVS?

In the project org.rodinp.platform, right-click on Rodin.platform and select export. Choose Plug-in Development > Eclipse product and click on Next type Rodin for the Root directory, and choose the Destination directory. Then click on Finish.

How do I collect debug information from the Rodin platform?

You may see the log in the console by appending -consoleLog to the rodin executable: rodin -consoleLog

You may add specific debug informations by setting specific options: rodin --debug options.file -consoleLog where

options.file

contains something like:

org.pluginname/debug = true
org.pluginname/debug/optionaldebug = true

where optionaldebug may be found in the

org.pluginname/.options

file in the rodin source repository.

How do I submit a patch?

Good practises for patch submission are described here.

How do I track memory leaks?

If you suspect that some memory isn't freed, you may find some useful directions on how to track memory leaks here.