if [ $# -ne 5 ]; then
  echo 'usage: sh gen_data.sh program iterations start increment end-time' >&2
  exit 1
fi

i=$3
t=0
while [ $t -lt $5 ]; do
  t=`sh time_one.sh $i $1 $2 | awk '{ print $NF }' | avg`
  echo $i $t
  i=`echo $i $4 | awk '{ print $1+$2 }'`
  t=`echo $t | sed 's/\..*//'`
done