Thread #x is the program's root thread

Thread #x unlocked a not-locked lock at 0x........
   at 0x........: pthread_mutex_unlock (hg_intercepts.c:...)
   by 0x........: nearly_main (tc09_bad_unlock.c:27)
   by 0x........: main (tc09_bad_unlock.c:49)
  Lock at 0x........ was first observed
   at 0x........: pthread_mutex_init (hg_intercepts.c:...)
   by 0x........: nearly_main (tc09_bad_unlock.c:23)
   by 0x........: main (tc09_bad_unlock.c:49)

Thread #x was created
   ...
   by 0x........: pthread_create@* (hg_intercepts.c:...)
   by 0x........: nearly_main (tc09_bad_unlock.c:35)
   by 0x........: main (tc09_bad_unlock.c:49)

Thread #x unlocked lock at 0x........ currently held by thread #x
   at 0x........: pthread_mutex_unlock (hg_intercepts.c:...)
   by 0x........: child_fn (tc09_bad_unlock.c:11)
   by 0x........: mythread_wrapper (hg_intercepts.c:...)
   ...
  Lock at 0x........ was first observed
   at 0x........: pthread_mutex_init (hg_intercepts.c:...)
   by 0x........: nearly_main (tc09_bad_unlock.c:31)
   by 0x........: main (tc09_bad_unlock.c:49)

Thread #x unlocked an invalid lock at 0x........
   at 0x........: pthread_mutex_unlock (hg_intercepts.c:...)
   by 0x........: nearly_main (tc09_bad_unlock.c:41)
   by 0x........: main (tc09_bad_unlock.c:49)

Thread #x's call to pthread_mutex_unlock failed
   with error code 22 (EINVAL: Invalid argument)
   at 0x........: pthread_mutex_unlock (hg_intercepts.c:...)
   by 0x........: nearly_main (tc09_bad_unlock.c:41)
   by 0x........: main (tc09_bad_unlock.c:49)

---------------------
Thread #x unlocked a not-locked lock at 0x........
   at 0x........: pthread_mutex_unlock (hg_intercepts.c:...)
   by 0x........: nearly_main (tc09_bad_unlock.c:27)
   by 0x........: main (tc09_bad_unlock.c:50)
  Lock at 0x........ was first observed
   at 0x........: pthread_mutex_init (hg_intercepts.c:...)
   by 0x........: nearly_main (tc09_bad_unlock.c:23)
   by 0x........: main (tc09_bad_unlock.c:49)

Thread #x: Attempt to re-lock a non-recursive lock I already hold
   at 0x........: pthread_mutex_lock (hg_intercepts.c:...)
   by 0x........: nearly_main (tc09_bad_unlock.c:32)
   by 0x........: main (tc09_bad_unlock.c:50)

Thread #x: Bug in libpthread: recursive write lock granted on mutex/wrlock which does not support recursion
   at 0x........: pthread_mutex_lock (hg_intercepts.c:...)
   by 0x........: nearly_main (tc09_bad_unlock.c:32)
   by 0x........: main (tc09_bad_unlock.c:50)

Thread #x was created
   ...
   by 0x........: pthread_create@* (hg_intercepts.c:...)
   by 0x........: nearly_main (tc09_bad_unlock.c:35)
   by 0x........: main (tc09_bad_unlock.c:50)

Thread #x unlocked lock at 0x........ currently held by thread #x
   at 0x........: pthread_mutex_unlock (hg_intercepts.c:...)
   by 0x........: child_fn (tc09_bad_unlock.c:11)
   by 0x........: mythread_wrapper (hg_intercepts.c:...)
   ...
  Lock at 0x........ was first observed
   at 0x........: pthread_mutex_init (hg_intercepts.c:...)
   by 0x........: nearly_main (tc09_bad_unlock.c:31)
   by 0x........: main (tc09_bad_unlock.c:49)

Thread #x unlocked an invalid lock at 0x........
   at 0x........: pthread_mutex_unlock (hg_intercepts.c:...)
   by 0x........: nearly_main (tc09_bad_unlock.c:41)
   by 0x........: main (tc09_bad_unlock.c:50)

Thread #x's call to pthread_mutex_unlock failed
   with error code 22 (EINVAL: Invalid argument)
   at 0x........: pthread_mutex_unlock (hg_intercepts.c:...)
   by 0x........: nearly_main (tc09_bad_unlock.c:41)
   by 0x........: main (tc09_bad_unlock.c:50)

Thread #x: Exiting thread still holds 1 lock
   ...


ERROR SUMMARY: 11 errors from 11 contexts (suppressed: 0 from 0)