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[Frama-c-discuss] Frama-c, the best way to prove reachability/non reachablility of an error-state.

  • Subject: [Frama-c-discuss] Frama-c, the best way to prove reachability/non reachablility of an error-state.
  • From: loefflju at informatik.uni-freiburg.de (Julian Löffler)
  • Date: Wed, 27 Sep 2017 14:27:02 +0200
Greetings,

Consider the following program:

#include <math.h>
int main() {
   float x = NAN;
   if (!isnan(x)) {
     some_error();
   }
}

Where "some_error()" shall represent an error-state.

Questions:
- Which plugin should be used to prove/show that "some_error()" is not 
reachable ? How would a call of frama-c look like, to do so ?
- Which plugins do support NAN/INFINITY?

Thanks in advance and kind regards,
Julian