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| ID | Project | Category | View Status | Date Submitted | Last Update | ||||
|---|---|---|---|---|---|---|---|---|---|
| 0000107 | Frama-C | Plug-in > slicing | public | 2009-05-27 16:38 | 2014-02-12 16:58 | ||||
| Reporter | dpariente | ||||||||
| Assigned To | yakobowski | ||||||||
| Priority | normal | Severity | major | Reproducibility | always | ||||
| Status | closed | Resolution | fixed | ||||||
| Product Version | Frama-C GIT, precise the release id | ||||||||
| Target Version | Fixed in Version | Frama-C Oxygen-20120901 | |||||||
| Summary | 0000107: Slicer: slicing preserving some undesired function calls | ||||||||
| Description | (This issue was previously discussed through private messages but not yet resolved. It was noticed that a solution would require some "work around"! It is now recorded into the BTS for traceability reasons.) The following code is sliced w.r.t. its annotation. typedef struct { int i; int j; } las; las v1,v2,v3; void g(las*p) { p->i = p->i * 2; } void f() { g( &v1 ); g( &v2 ); g( &v3 ); //@ assert v2.i>=10; } Command line: frama-c -slice-assert f -slice-print -lib-entry -main f foo.c The sliced code got rid of the statement g(&v3) (with calldeps), but kept g(&v1). A slicer improvement would be, of course, to be able to get also rid of the 1st call to g (i.e., "g(&v1);")! | ||||||||
| Tags | No tags attached. | ||||||||
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yakobowski (manager) 2012-01-15 15:10 |
My diagnostic is that a "-call-pdg" option is needed to handle this properly. However, I would love to be proven wrong, as this would be an invasive and complicated change --- not to mention of amount of time and memory it might require at execution. Could someone point to me a document that explains how the slicing currently uses -calldeps to improve its results? |
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yakobowski (manager) 2014-02-12 16:58 |
Fix committed to stable/neon branch. |
| Notes |
| Issue History |
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| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2009-05-27 16:38 | dpariente | New Issue | |
| 2009-05-27 16:38 | dpariente | Status | new => assigned |
| 2009-05-27 16:38 | dpariente | Assigned To | => Anne |
| 2009-08-26 11:51 | Anne | Status | assigned => confirmed |
| 2011-12-22 12:01 | monate | Status | confirmed => assigned |
| 2011-12-22 12:01 | monate | Assigned To | Anne => yakobowski |
| 2012-01-15 15:10 | yakobowski | Note Added: 0002578 | |
| 2012-02-08 00:23 | svn | ||
| 2012-02-08 00:23 | svn | Status | assigned => resolved |
| 2012-02-08 00:23 | svn | Resolution | open => fixed |
| 2012-02-08 00:31 | yakobowski | Status | resolved => feedback |
| 2012-02-08 00:31 | yakobowski | Resolution | fixed => reopened |
| 2012-02-08 00:31 | yakobowski | Status | feedback => resolved |
| 2012-02-08 00:31 | yakobowski | Resolution | reopened => fixed |
| 2012-02-23 18:11 | svn | ||
| 2012-03-09 17:22 | svn | ||
| 2012-09-19 17:15 | signoles | Fixed in Version | => Frama-C Oxygen-20120901 |
| 2012-09-19 17:16 | signoles | Status | resolved => closed |
| 2013-12-19 01:11 | yakobowski | Source_changeset_attached | => framac master 3074914f |
| 2013-12-19 01:12 | yakobowski | Source_changeset_attached | => framac master ff592c25 |
| 2014-02-12 16:54 | yakobowski | Source_changeset_attached | => framac stable/neon 3074914f |
| 2014-02-12 16:54 | yakobowski | Source_changeset_attached | => framac stable/neon ff592c25 |
| 2014-02-12 16:58 | yakobowski | Note Added: 0004677 | |
| 2014-02-12 16:58 | yakobowski | Status | closed => resolved |
| Issue History |