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[Frama-c-discuss] ACSL by Example and automatic provers

Gerlach, Jens wrote:
> Hello,
> Frama-C/WP and Why3 allows using several automatic theorem provers to discharge verification conditions.
> For “ACSL by Example” ( we employ Alt-Ergo,  Z3, CVC4, CVC3, and Eprover.
> Of course, we pass only those conditions to the provers that haven’t been discharged already by WP’s built-in simplifier Qed.
> In case you want to know how these provers succeed on our examples, we provide here a short summary of the results
> presented in Appendix A.3 (Pages 183) of
> Of the 59 examples whose proof obligations could automatically discharged
> 	55 can be completely verified by just using Alt-Ergo
> 	51 can be completely verified by just using CVC3
> 	47 can be completely verified by just using CVC4
> 	26 can be completely verified by just using Eprover
> 	  9 can be completely verified by just using Z3
Sind die Zahlen nicht priorisiert? Will sagen: hast Du nicht z.B. den 
CVC3 nur fuer diejenigen Faelle aufgerufen, in denen Alt-Ergo keinen 
Beweis gefunden hat?

Und warum sind die Zahlen so klein? Allein push-heap muesste doch knapp 
100 Proof Obligations gehabt haben, und fuer das ganze "ACSL by Example" 
wuerde ich spontan ca. 1000 erwarten - ? Kann der Qed ca. 900 davon 
schon alleine loesen?

(Hab die Fragen nicht im pdf  zu klaeren versucht)


> This is of course a very rough statistics and I would like to emphasize that due to the limited number of our examples
> this ordering does not reflect on the usefulness of the individual provers.
> Regards
> Jens 
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