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IDProjectCategoryView StatusDate SubmittedLast Update
0000717Frama-CPlug-in > Evapublic2011-02-12 20:052014-02-12 16:59
Reporterregehr 
Assigned Topascal 
PrioritynormalSeverityminorReproducibilityalways
StatusclosedResolutionfixed 
PlatformOSOS Version
Product VersionFrama-C GIT, precise the release id 
Target VersionFixed in VersionFrama-C Nitrogen-20111001 
Summary0000717: possible unsoundness bug
DescriptionThis is on Ubuntu 10.10 on x86.

Analyzing the attached program like this:

  toplevel.opt -val -slevel 24 foo_pp.c

Gives output including:

  *(unsigned char*)((unsigned char*)&g_8+30) == 0

However, running the program leaves the value 243 in this byte.
TagsNo tags attached.
Attached Filesc file icon foo_pp.c [^] (38,138 bytes) 2011-02-12 20:05 [Show Content]

- Relationships

-  Notes
(0001480)
regehr (reporter)
2011-02-12 20:22

Forgot to say this is seen in r11865
(0001481)
pascal (reporter)
2011-02-12 20:39

The field at offset 30 is g_8.f0.f5.f4. This should indeed contain 243, or 0xF3L. g_8 is not even modified during execution.
(0004835)
pascal (reporter)
2014-02-12 16:59

Fix committed to stable/neon branch.

- Issue History
Date Modified Username Field Change
2011-02-12 20:05 regehr New Issue
2011-02-12 20:05 regehr Status new => assigned
2011-02-12 20:05 regehr Assigned To => pascal
2011-02-12 20:05 regehr File Added: foo_pp.c
2011-02-12 20:22 regehr Note Added: 0001480
2011-02-12 20:39 pascal Note Added: 0001481
2011-02-12 20:39 pascal Status assigned => confirmed
2011-02-12 22:01 svn Checkin
2011-02-12 22:01 svn Status confirmed => resolved
2011-02-12 22:01 svn Resolution open => fixed
2011-10-10 14:13 signoles Fixed in Version => Frama-C Nitrogen-20111001
2011-10-10 14:14 signoles Status resolved => closed
2014-02-12 16:59 pascal Note Added: 0004835
2014-02-12 16:59 pascal Status closed => resolved
2018-01-12 14:26 signoles Category Plug-in > value analysis => Plug-in > Eva


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