source: CIVL/examples/fairness/unfair3.cvl

/* All fair executions terminate. */
#include <stdio.h>

int x=0;

void f() {
  while (x==0) {
    $atomic{ printf("Hi\n"); }
  }
}

int main() {
  $proc p1 = $spawn f();
  x=1;
  $wait(p1);
}