Thread #x is the program's root thread

Thread #x: pthread_cond_{timed}wait called with invalid mutex
   at 0x........: pthread_cond_wait@* (hg_intercepts.c:...)
   by 0x........: main (tc23_bogus_condwait.c:69)

Thread #x: pthread_cond_{timed}wait called with un-held mutex
   at 0x........: pthread_cond_wait@* (hg_intercepts.c:...)
   by 0x........: main (tc23_bogus_condwait.c:72)

Thread #x: pthread_cond_{timed}wait called with mutex of type pthread_rwlock_t*
   at 0x........: pthread_cond_wait@* (hg_intercepts.c:...)
   by 0x........: main (tc23_bogus_condwait.c:75)

Thread #x: pthread_cond_{timed}wait called with mutex held by a different thread
   at 0x........: pthread_cond_wait@* (hg_intercepts.c:...)
   by 0x........: main (tc23_bogus_condwait.c:78)

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