pthread5.c running 
creating thread 0 
creating thread 1 
creating thread 2 
creating thread 3 
waiting for threads to reach first barrier 
in barrier 
nb=1 of np=5 
about to cond wait 
   thread 0 at first barrier 
in barrier 
nb=2 of np=5 
about to cond wait 
   thread 1 at first barrier 
in barrier 
nb=3 of np=5 
about to cond wait 
   thread 2 at first barrier 
in barrier 
nb=4 of np=5 
about to cond wait 
   thread 3 at first barrier 
in barrier 
nb=5 of np=5 
about to broadcast 
   thread 3 running after first barrier
   thread 3 at second barrier 
in barrier 
nb=1 of np=5 
about to cond wait 
   thread 1 running after first barrier
   thread 1 at second barrier 
in barrier 
nb=2 of np=5 
about to cond wait 
all threads finished first task 
results[0]=0 
results[1]=20 
results[2]=0 
results[3]=40 
wait for all threads to finish second task 
in barrier 
nb=3 of np=5 
about to cond wait 
   thread 2 running after first barrier
   thread 2 at second barrier 
in barrier 
nb=4 of np=5 
about to cond wait 
   thread 0 running after first barrier
   thread 0 at second barrier 
in barrier 
nb=5 of np=5 
about to broadcast 
all threads finished second task 
final results[0]=10 
final results[1]=20 
final results[2]=30 
final results[3]=40 
wait for all threads to finish third task 
in barrier 
nb=1 of np=5 
about to cond wait 
   thread 1 running after second barrier
   thread 1 at third barrier 
in barrier 
nb=2 of np=5 
about to cond wait 
   thread 2 running after second barrier
   thread 2 at third barrier 
in barrier 
nb=3 of np=5 
about to cond wait 
   thread 3 running after second barrier
   thread 3 at third barrier 
in barrier 
nb=4 of np=5 
about to cond wait 
   thread 0 running after second barrier
   thread 0 at third barrier 
in barrier 
nb=5 of np=5 
about to broadcast 
   thread 1 running after third barrier 
   thread 1 at fourth barrier 
in barrier 
nb=1 of np=5 
about to cond wait 
   thread 2 running after third barrier 
   thread 2 at fourth barrier 
in barrier 
nb=2 of np=5 
about to cond wait 
all threads finished third task 
in barrier 
nb=3 of np=5 
about to cond wait 
   thread 3 running after third barrier 
   thread 3 at fourth barrier 
in barrier 
nb=4 of np=5 
about to cond wait 
   thread 0 running after third barrier 
   thread 0 at fourth barrier 
in barrier 
nb=5 of np=5 
about to broadcast 
final results[0]=1000 
final results[1]=2000 
final results[2]=3000 
final results[3]=4000 
master exiting