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Fedora Update Notification
FEDORA-2017-1f7e270688
2017-12-28 01:13:53.259454
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Name : why
Product : Fedora 27
Version : 2.39
Release : 3.fc27
URL :
http://why.lri.fr/
Summary : Software verification platform
Description :
Why is a software verification platform that applies formal proving
tools to annotated programs. It is currently capable of analysis of C
(through "Frama-C"), Java (through the included tool "Krakatoa"), and
potentially ML programs with some modification into Why's own ML-like
language. Furthermore, Why is capable of analysis of any program that
is mapped onto its own internal language. It uses a weakest
precondition involving calculus to generate potential theorems necessary
for the proof of a program's correctness. It translates these theorems
into formats that can be used by external proof assistants (without any
extra work Coq, PVS, HOL Light, and Mizar are supported - having one is
recommended and both Coq and PVS are packaged for Fedora) and automated
theorem provers (without any extra work Simplify, Alt-Ergo, Yices, Z3,
CVC3, and Zenon are supported and Alt-Ergo, Z3, and Zenon are packaged
for Fedora) so that these results can be externally proven, resulting in
a proof of program correctness.
Note: Each user account must be set up by running "why-config" at the
command line (to set up a configuration file).
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Update Information:
This update fixes a clash between the Frama-C and why modules named Project by
renaming the why module to Whyproject.
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References:
[ 1 ] Bug #1520483 - why-jessie interface broken with FramaC
https://bugzilla.redhat.com/show_bug.cgi?id=1520483
[ 2 ] Bug #1520040 - why FTBFS in Rawhide
https://bugzilla.redhat.com/show_bug.cgi?id=1520040
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This update can be installed with the "dnf" update program. Use
su -c 'dnf upgrade why' at the command line.
For more information, refer to the dnf documentation available at
http://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label
All packages are signed with the Fedora Project GPG key. More details on the
GPG keys used by the Fedora Project can be found at
https://fedoraproject.org/keys
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