Destroying locked mutex: mutex 0x........, recursion count 1, owner 1.
   at 0x........: free (vg_replace_malloc.c:...)
   by 0x........: main (tc04_free_lock.c:24)
mutex 0x........ was first observed at:
   at 0x........: pthread_mutex_init (drd_pthread_intercepts.c:?)
   by 0x........: main (tc04_free_lock.c:20)

Destroying locked mutex: mutex 0x........, recursion count 1, owner 1.
   at 0x........: bar (tc04_free_lock.c:40)
   by 0x........: ???
mutex 0x........ was first observed at:
   at 0x........: pthread_mutex_lock (drd_pthread_intercepts.c:?)
   by 0x........: bar (tc04_free_lock.c:38)
   by 0x........: main (tc04_free_lock.c:26)

Destroying locked mutex: mutex 0x........, recursion count 1, owner 1.
   at 0x........: foo (tc04_free_lock.c:49)
   by 0x........: ???
mutex 0x........ was first observed at:
   at 0x........: pthread_mutex_init (drd_pthread_intercepts.c:?)
   by 0x........: foo (tc04_free_lock.c:46)
   by 0x........: main (tc04_free_lock.c:27)


ERROR SUMMARY: 4 errors from 3 contexts (suppressed: 0 from 0)