source: CIVL/mods/dev.civl.com/examples/sideEffects/postIncr.cvl@ cb4d4f4

#include <civlc.cvh>

$input int N=5;
int counter = 0;

int incrCounter(){
  return counter++;
}

int main(){
  for(int i = 0; i < N; i++){
    int count = incrCounter();

    $assert((i == count));
  }
}