// The -- operation on numNodes2 is not protected, causing data race.
#include <stdlib.h>  
#include <stdio.h>

int main(int argc, char* argv[])  
{
  int i;
  int len=100;

  int numNodes=len, numNodes2=0; 
  int x[100]; 

  // initialize x[]
  for (i=0; i< len; i++)
  {
    if (i%2==0)
      x[i]=5;
    else
      x[i]= -5;
  }

#pragma omp parallel for
  for (i=numNodes-1 ; i>-1 ; --i) {
    if (x[i]<=0) {
      numNodes2-- ;
    }
  }
  printf ("numNodes2 = %d\n", numNodes2);
  return 0;
}