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[Frama-c-discuss] Frama-C: Detecting unreachable code? (Dharmalingam Ganesan)

  • Subject: [Frama-c-discuss] Frama-C: Detecting unreachable code? (Dharmalingam Ganesan)
  • From: jens.gerlach at fokus.fraunhofer.de (Gerlach, Jens)
  • Date: Sat, 25 Jan 2014 11:30:57 +0000
  • In-reply-to: <mailman.29.1390647739.11169.frama-c-discuss@lists.gforge.inria.fr>
  • References: <mailman.29.1390647739.11169.frama-c-discuss@lists.gforge.inria.fr>
Hello Dharma,

I think your function satisfies its contract.
So, what shall Frama-C do?

Maybe, your issue is that the function also satisfies the following simpler contract?

Jens

int MAX_VALUE = 100;

float x = 0.0;

int status = 0;

/*@
  requires MAX_VALUE == 100;
  assigns status;
  ensures status == -1;
*/
int main()
{

  if((x > MAX_VALUE) ||
     (x <= MAX_VALUE))
  {
     status = -1;
  }
}