--- /dev/null
+
+Mutex not locked by calling thread: mutex 0x........, recursion count 0, owner 1.
+ at 0x........: pthread_mutex_unlock (drd_pthread_intercepts.c:?)
+ by 0x........: nearly_main (tc09_bad_unlock.c:27)
+ by 0x........: main (tc09_bad_unlock.c:49)
+
+Thread 2:
+Mutex not locked by calling thread: mutex 0x........, recursion count 1, owner 1.
+ at 0x........: pthread_mutex_unlock (drd_pthread_intercepts.c:?)
+ by 0x........: child_fn (tc09_bad_unlock.c:11)
+ by 0x........: vg_thread_wrapper (drd_pthread_intercepts.c:?)
+ by 0x........: (within libpthread-?.?.so)
+ by 0x........: clone (in /...libc...)
+
+Thread 1:
+The object at address 0x........ is not a mutex.
+ at 0x........: pthread_mutex_unlock (drd_pthread_intercepts.c:?)
+ by 0x........: nearly_main (tc09_bad_unlock.c:41)
+ by 0x........: main (tc09_bad_unlock.c:49)
+
+Destroying locked mutex: mutex 0x........, recursion count 1, owner 1.
+ at 0x........: nearly_main (tc09_bad_unlock.c:45)
+ by 0x........: (below main) (in /...libc...)
+
+Mutex not locked by calling thread: mutex 0x........, recursion count 0, owner 1.
+ at 0x........: pthread_mutex_unlock (drd_pthread_intercepts.c:?)
+ by 0x........: nearly_main (tc09_bad_unlock.c:27)
+ by 0x........: main (tc09_bad_unlock.c:50)
+
+Thread 2:
+Mutex not locked by calling thread: mutex 0x........, recursion count 1, owner 1.
+ at 0x........: pthread_mutex_unlock (drd_pthread_intercepts.c:?)
+ by 0x........: child_fn (tc09_bad_unlock.c:11)
+ by 0x........: vg_thread_wrapper (drd_pthread_intercepts.c:?)
+ by 0x........: (within libpthread-?.?.so)
+ by 0x........: clone (in /...libc...)
+
+Thread 1:
+The object at address 0x........ is not a mutex.
+ at 0x........: pthread_mutex_unlock (drd_pthread_intercepts.c:?)
+ by 0x........: nearly_main (tc09_bad_unlock.c:41)
+ by 0x........: main (tc09_bad_unlock.c:50)
+
+Destroying locked mutex: mutex 0x........, recursion count 1, owner 1.
+ at 0x........: nearly_main (tc09_bad_unlock.c:45)
+ by 0x........: (below main) (in /...libc...)
+
+ERROR SUMMARY: 8 errors from 8 contexts (suppressed: 0 from 0)