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[Frama-c-discuss] problem with matrix pointer

  • Subject: [Frama-c-discuss] problem with matrix pointer
  • From: dragan.stosic at (Dragan)
  • Date: Sun, 26 Jan 2014 18:09:02 +0000

Hi all,
Here is an example  simple_2.c
I am facing with the following issue :

float  *foo(float (*C)[2][2],float (*x)[2]){
 float (*matrix_C)[2][2] = C;
 float (*vector_x)[2] = x;
 float foo_var=0;
 int i=0, j=0;
 foo_var =(*vector_x)[j];
 //foo_var =(*matrix_C)[i][j];
 return (*x);

If foo_var = (*vector_x)[j]; then there is no problem with the command :
frama-c -jessie -wp-prover why3ide simple_2.c

However, if foo_var =(*matrix_C)[i][j]; I am getting the following error:
failure: typeOfLval: Mem on a non-pointer ((*matrix_C)[i])

I am fairly sure I missed something in the frama-c or jessie documentation.
Can somebody help me with this issue ?

Dragan Stosic
Senior developer at IBM
phone: 085-773-1050
e-mail: dragan.stosic at
e-mail:DRAGANST at
IBM Technology Campus
Damastown Industrial Estate
Dublin 15
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