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[Frama-c-discuss] Slicing in Frama-C

Nikos Anastopoulos a ?crit :
> Thank you very much for your reply, Anne!

You are welcome !

> So, as far as I understand, the problem of backward slicing essentially 
> reduces to the (graph) problem of pruning in the PDG all but the paths 
> through which the "slice criterion node" is reachable. 

Yes, it is mostly that, so the smart part is mainly le PDG
(greatly helped by the value analysis) .

> Is this 
> sufficient? Also, is the PDG able to capture the inter-procedural 
> dependences?

The PDG uses the results of the -deps option to manage function calls.
For inter-procedural slicing, there are some more processing
in the slicing module since we try to specialize the called functions
(in some mode : see -slicing-level in ./frama-c -slicing-help).

Are you interested by the slicing from a user point of view ?
or maybe to use it in another plugin ?

Anyway, hope I answered you questions.
-- 
Anne Pacalet.