Example: pointer_from_integer_2g.c

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    #include <stdio.h>
    #include <stdint.h>
    #include "charon_address_guesses.h"
    void f() {
      uintptr_t i=ADDRESS_PFI_2G;
      int *p = (int*)i;
      *p=7;
    }
    int main() {
      int j=5;
      if ((uintptr_t)&j == ADDRESS_PFI_2G)
        f();
      printf("j=%d &j=%p\n",j,(void*)&j); 
    }
[link to run test in Cerberus]

Experimental data (what does this mean?) 



cerberus-concrete-PVI-plain j=7 &j=(@70, 0xffffedf8)


cerberus-concrete-PVI-ae j=7 &j=(@70, 0xffffedf8)


cerberus-concrete-PVI-ae-udi j=7 &j=(@70, 0xffffedf8)


gcc-8.3-O0 j=7 &j=0x7ffeefbff32c


gcc-8.3-O2 j=7 &j=0x7ffeefbff32c


gcc-8.3-O3 j=7 &j=0x7ffeefbff32c


gcc-8.3-O2-no-strict-aliasing j=7 &j=0x7ffeefbff2ec


gcc-8.3-O3-no-strict-aliasing j=7 &j=0x7ffeefbff2ec


clang-7.0.1-O0 j=7 &j=0x7ffeefbff318


clang-7.0.1-O2 j=5 &j=0x7ffeefbff31c


clang-7.0.1-O3 j=5 &j=0x7ffeefbff31c


clang-7.0.1-O2-no-strict-aliasing j=5 &j=0x7ffeefbff2dc


clang-7.0.1-O3-no-strict-aliasing j=5 &j=0x7ffeefbff2dc


icc-19-O0 j=7 &j=0x7fffffffe6e0


icc-19-O2 j=7 &j=0x6046c0


icc-19-O3 j=7 &j=0x6046c0


icc-19-O2-no-strict-aliasing j=7 &j=0x6046c0


icc-19-O3-no-strict-aliasing j=7 &j=0x6046c0