// S : tags   big inf sym c  $TAGS
// S : expect --result valid
// S : cc     -o test.bc  $CC_OPT $file
// S : verify --symbolic --solver $solver --sequential $V_OPT test.bc

#define a (2)

#include <assert.h>
#include <stdbool.h>
extern unsigned int __VERIFIER_nondet_uint(void);

int main() {
  int sn=0;
  unsigned int loop1=__VERIFIER_nondet_uint(), n1=__VERIFIER_nondet_uint();
  unsigned int x=0;

  while(1){
    sn = sn + a;
    x++;
    assert(sn==x*a || sn == 0);
  }
}