File: vla_strlen.res.oracle

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frama-c 20220511-manganese-3
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[kernel] Parsing vla_strlen.c (with preprocessing)
/* Generated by Frama-C */
#include "stddef.h"
#include "string.h"
#include "strings.h"
/*@ assigns \nothing;
    frees p; */
 __attribute__((__FC_BUILTIN__)) void __fc_vla_free(void *p);

/*@ assigns \result;
    assigns \result \from \nothing;
    allocates \result; */
 __attribute__((__FC_BUILTIN__)) void *__fc_vla_alloc(unsigned int size);

void f(char *s)
{
  unsigned int __lengthof_t;
  size_t tmp;
  tmp = strlen((char const *)s);
  /*@
  assert alloca_bounds: 0 < sizeof(char) * (size_t)(tmp + 1) ≤ 4294967295;
   */
  ;
  __lengthof_t = tmp + (size_t)1;
  char *t = __fc_vla_alloc(sizeof(char) * __lengthof_t);
  char *p = t;
  while (*s) {
    char *tmp_0;
    char *tmp_1;
    tmp_0 = p;
    p ++;
    tmp_1 = s;
    s ++;
    *tmp_0 = *tmp_1;
  }
  *p = (char)0;
  __fc_vla_free((void *)t);
  return;
}