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| ID | Project | Category | View Status | Date Submitted | Last Update | ||||
|---|---|---|---|---|---|---|---|---|---|
| 0000367 | Frama-C | Plug-in > jessie | public | 2010-01-07 16:46 | 2010-04-19 16:14 | ||||
| Reporter | toomanycsh | ||||||||
| Assigned To | cmarche | ||||||||
| Priority | normal | Severity | major | Reproducibility | always | ||||
| Status | closed | Resolution | fixed | ||||||
| Product Version | Frama-C Beryllium-20090902 | ||||||||
| Target Version | Fixed in Version | Frama-C Boron-20100401 | |||||||
| Summary | 0000367: bug with constants like 1E-6 | ||||||||
| Description | bool_t func1(float32_t x); /*@ ensures \result == TRUE */ bool_t func1(float32_t x) { if (x < 1E-6){ ; } return TRUE; } Alt-Ergo and CVC3 claim a syntax error on the input from Frama-C. | ||||||||
| Tags | No tags attached. | ||||||||
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signoles (manager) 2010-01-08 11:00 |
From an original post on Frama-C discuss: http://lists.gforge.inria.fr/pipermail/frama-c-discuss/2010-January/001745.html The given program does not compile. Below is a proper reproducible case showing the issue with 1E-6. The outputs of Alt-Ergo and Z3 (at least) are incorrect. Ok for Simplify. I didn't test the other provers. === t.c === #define bool_t int #define float32_t float #define TRUE 1 bool_t func1(float32_t x); /*@ ensures \result == TRUE; */ bool_t func1(float32_t x) { if (x < 1E-6){ ; } return TRUE; } =========== $ frama-c -pp-annot -jessie t.c |
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cmarche (developer) 2010-01-08 13:12 |
fixed SMT output for Z3, Yices and CVC3 For alt-ergo, this is an alt-ergo bug, fixed in the develpment version of alt-ergo |
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signoles (manager) 2010-04-19 16:14 |
Fix in Why 2.24 (require Frama-C Boron-20100401). |
| Notes |
| Issue History |
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| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2010-01-07 16:46 | toomanycsh | New Issue | |
| 2010-01-08 11:00 | signoles | Note Added: 0000617 | |
| 2010-01-08 11:00 | signoles | Assigned To | => cmarche |
| 2010-01-08 11:00 | signoles | Status | new => assigned |
| 2010-01-08 11:00 | signoles | Category | kernel => plug-in > jessie |
| 2010-01-08 11:00 | signoles | Summary | bug => bug with constants like 1E-6 |
| 2010-01-08 13:12 | cmarche | Note Added: 0000618 | |
| 2010-01-08 13:12 | cmarche | Status | assigned => resolved |
| 2010-01-08 13:12 | cmarche | Resolution | open => fixed |
| 2010-04-19 16:13 | signoles | Status | resolved => closed |
| 2010-04-19 16:13 | signoles | Fixed in Version | => Frama-C Boron |
| 2010-04-19 16:14 | signoles | Note Added: 0000782 | |
| Issue History |