Frama-C Bug Tracking System - Frama-C
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0002371Frama-CPlug-in > wppublic2018-03-22 12:352020-02-17 18:08
Assigned Tocorrenson 
PlatformSulfur-20171101OSOS VersionUbuntu 17.10
Product VersionFrama-C 16-Sulfur 
Target VersionFixed in VersionFrama-C 20-Calcium 
Summary0002371: suggest to provide results of commandl-line "-wp-prop" evaluation in a file in the wp-out directory
DescriptionI ran
"frama-c -wp -wp-out without_lemma -wp-gen -wp-prover why3 -wp-prop=-@lemma aaa.c"
and then
"frama-c -wp -wp-out with_lemma -wp-gen -wp-prover why3 aaa.c"
on the attached file.
After that, "diff -r without_lemma with_lemma" reports no difference between both generated directories.

It is clear that Frama-C needs to generate why3 code for the lemma in both cases, since it might be *used* in some proof.

However, as a consequence, there is no information in the generated directories about which lemmas should be proven. It would be nice if in the long run such information could be provided, e.g. in a separate file.

Additional InformationOur application scenario is the following:

We run (one of) the above command(s) on a local computer to generate why3 files; then we transfer them to a more powerful remote computer, and run the provers there. On the remote computer, we would like to have the list of lemmas-to-be-proven available.

Note that arbitrarily complex combinations of "-wp-prop" could exclude some lemmas from being proven and include others. Therefore, we don't want to perform the evaluation of command-line args "-wp-prop=..." ourselves again (this is difficult, anyway, cf. 0002285).
TagsNo tags attached.
Attached Filesc aaa.c (198) 2018-03-22 12:35

2018-03-26 09:39   
Such features will be, indeed, implemented as part of the new generation engine we are working on.
More precisely, we are planning to integrate more closely Frama-C/WP and Why3 session. Hence,
the data (and dependencies) you are asking for will be directly implemented in terms of Why3 tasks.
2019-10-17 17:10   
New output engine actually uses why3 and generates tasks that are printed in -wp-out directory when provided. Although, you now have a cache of prover results to increase replay performances.
2020-02-17 18:08   
Fixed in Frama-C 20.0 (Calcium).

Issue History
2018-03-22 12:35JochenNew Issue
2018-03-22 12:35JochenStatusnew => assigned
2018-03-22 12:35JochenAssigned To => correnson
2018-03-22 12:35JochenFile Added: aaa.c
2018-03-22 18:40virgileReporterJochen => jens
2018-03-26 09:39corrensonNote Added: 0006541
2019-10-17 17:10corrensonNote Added: 0006903
2019-10-17 17:11corrensonStatusassigned => resolved
2019-10-17 17:11corrensonFixed in Version => Frama-C 20-Calcium
2019-10-17 17:11corrensonResolutionopen => fixed
2020-02-17 18:08signolesStatusresolved => closed
2020-02-17 18:08signolesNote Added: 0006949