Frama-C-discuss mailing list archives

This page gathers the archives of the old Frama-C-discuss archives, that was hosted by Inria's gforge before its demise at the end of 2020. To search for mails newer than September 2020, please visit the page of the new mailing list on Renater.

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[Frama-c-discuss] Problem with ACSL annotations

  • Subject: [Frama-c-discuss] Problem with ACSL annotations
  • From: intissar_mzalouat at yahoo.fr (intissar mzalouat)
  • Date: Tue, 18 Dec 2012 12:28:20 +0000 (GMT)
Hello all,

I am a new user of frama-c.
I would like to verify this function:

/*@ requires \valid_range(queue,0,14);
??? ensures \result==0 ==> (\exists int i;0<=i<15 && ((\forall int j; 0<=j<15 && queue[i] > queue[j] )&&((queue[i]>=5) || (queue[i]<=10))));
*/
int find_array_max(int queue[15]){

? int i, largest;

? largest = 0;
/*@ loop variant 15 - i;
??? loop invariant 0 <= i <= 15;
??? 
*/
? for (i = 0; i < 15; i++) {
??? if (queue[i] > largest)
????? largest = queue[i];
? }
? 
? if ( (largest >= 5) || (largest <= 10) ) {
??? 
??? ? return 0;
? }

? return largest;

}

I had some problems to write postconditions in ACSL for this function.
Could you, please help me?

Best regards,
Intissar Mzalouat
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.gforge.inria.fr/pipermail/frama-c-discuss/attachments/20121218/c8e5064b/attachment.html>