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| ID | Project | Category | View Status | Date Submitted | Last Update | ||||
|---|---|---|---|---|---|---|---|---|---|
| 0001767 | Frama-C | Plug-in > wp | public | 2014-04-30 10:07 | 2015-03-17 22:17 | ||||
| Reporter | davyg | ||||||||
| Assigned To | correnson | ||||||||
| Priority | normal | Severity | minor | Reproducibility | always | ||||
| Status | closed | Resolution | fixed | ||||||
| Product Version | Frama-C Neon-20140301 | ||||||||
| Target Version | Fixed in Version | Frama-C Sodium | |||||||
| Summary | 0001767: Problem when arguments are not used in predicates | ||||||||
| Description | The following example generates an error when it is exported to coq/why3 or alt-ergo. /*@predicate p(double x, int y) = y;*/ /*@lemma lem : p((double) 0, (int) 1);*/ The why file generated by wp is the following one : theory Axiomatic ... predicate p_p (y_0 : int) = 0 <> y_0 lemma Q_lem: (p_p 1.0) end Wp detects that x is not used so it does not appear in why predicate p_p when it is used in Q_lem the correct value is taken(1) but its type is incorrect that's why wp put 1.0(a real) and not 1(an int) as argument. It takes the correct value : the one of the second argument in the original lemma but takes the type of the first argument to generate the constant and not the second one. | ||||||||
| Steps To Reproduce | Write a file test.c with : /*@predicate p(double x, int y) = y;*/ /*@lemma lem : p((double) 0, (int) 1);*/ And run frama-c -wp test.c You will get the following error : [kernel] preprocessing with "gcc -C -E -I. test.c" [wp] Running WP plugin... [wp] Collecting axiomatic usage [wp] 1 goal scheduled /tmp/wpd136d4.dir/typed/lemma_lem.ergo:9:[wp] user error: Alt-Ergo error: characters 17-25:typing error: int and real cannot be unified [wp] [Alt-Ergo] Goal typed_lemma_lem : Failed Error: characters 17-25:typing error: int and real cannot be unified [wp] Proved goals: 0 / 1 Alt-Ergo: 0 (failed: 1) | ||||||||
| Tags | No tags attached. | ||||||||
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| Issue History |
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| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2014-04-30 10:07 | davyg | New Issue | |
| 2014-04-30 10:07 | davyg | Status | new => assigned |
| 2014-04-30 10:07 | davyg | Assigned To | => correnson |
| 2014-06-02 17:42 | correnson | Source_changeset_attached | => framac master 8628d2df |
| 2014-06-02 17:42 | correnson | Note Added: 0005190 | |
| 2014-06-02 17:42 | correnson | Status | assigned => resolved |
| 2014-06-02 17:42 | correnson | Resolution | open => fixed |
| 2015-03-17 22:17 | signoles | Fixed in Version | => Frama-C Sodium |
| 2015-03-17 22:17 | signoles | Status | resolved => closed |
| Issue History |