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pub
Frama-C Website
Commits
6f7f4205
Commit
6f7f4205
authored
5 years ago
by
Virgile Prevosto
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metacsl and conc2seq
parent
61d7d265
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!9
plugins
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#25080
passed
5 years ago
Stage: test
Stage: deploy
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_data/plugins_categories.yml
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_data/plugins_categories.yml
_fc-plugins/conc2seq.html
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_fc-plugins/conc2seq.html
_fc-plugins/metacsl.html
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_fc-plugins/metacsl.html
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_data/plugins_categories.yml
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6f7f4205
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...
@@ -19,5 +19,5 @@
-
name
:
Front-end for other languages
key
:
front
-
name
:
For concurrent programs
-
name
:
For concurrent
/multi-threaded
programs
key
:
concurrent
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_fc-plugins/conc2seq.html
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---
layout: plugin
title: Conc2seq
description: Verification of concurrent programs
key: concurrent
distrib_mode: proto
---
<dl
class=
"defnitionList"
>
<dt
class=
"subTitle"
>
Overview
</dt>
<dd><p>
Conc2seq is dedicated to the verification of concurrent C
programs. More specifically, it proposes an instrumentation of the
original code that simulates all possible interleavings allowed by
the norm. The resulting instrumented code is then a sequential
programs that can be analyzed as such. Note however that the
transformation assumes that the original code is sequentially consistent,
which must be verified independently (e.g. by using the
<a
href=
"mthread.html"
>
Mthread plugin
</a>
).
</p>
</dd>
<dt
class=
"subTitle"
>
Use
</dt>
<dd>
As the plugin is in an early stage of development, it is currently only
available upon request.
</dd>
</dl>
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_fc-plugins/metacsl.html
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---
layout: plugin
title: MetACSL
description: Verification of meta-properties
key: specifications
distrib_mode: proto
---
<dl
class=
"defnitionList"
>
<dt
class=
"subTitle"
>
Overview
</dt>
<dd><p>
MetACSL is a plug-in dedicated
to specifying and verifying
<i>
Meta Properties
</i>
, that is properties that are supposed
to be checked at many points of the code base under analysis,
so that writing the corresponding ACSL annotations manually
would be extremely tedious and error-prone. A simple example
of such a property would be a confidentiality property indicating
that no access to a particular memory block should occur unless
some clearance condition holds. Specifying that in pure ACSL
would require writing an assertion for each reading access in the
code, while MetACSL only needs a single meta-property.
</p>
<p>
In summary, MetACSL defines a global ACSL extension for describing
meta properties, that are composed of three things:
<ul>
<li>
a target, the set of functions where the meta-property should hold.
</li>
<li>
a context, the kind of program points that are concerned by the
meta-property. Two important contexts are
<tt>
\writing
</tt>
and
<tt>
\reading
</tt>
accesses.
</li>
<li>
the property itself. It is an ACSL predicate, possibly enriched
with meta-variables depending on the context. For instance,
a
<tt>
\writing
</tt>
context gives rise to a
<tt>
\written
</tt>
meta-variable denoting the location being written to.
</li>
</ul>
The plug-in proceeds by generating all ACSL annotations corresponding to
each meta-property. It is then possible to use one of the main analysis
plug-ins of the platform (e.g.
<a
href=
"wp.html"
>
WP
</a>
,
<a
href=
"e-acsl.html"
>
E-ACSL
</a>
, or
<a
href=
"eva.html"
>
Eva
</a>
) to
verify these annotations.
</p>
</dd>
<dt
class=
"subTitle"
>
Use
</dt>
<dd>
As the plugin is in an early stage of development, it is currently only
available upon request.
</dd>
</dl>
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