
Thread #x is the program's root thread

Thread #x unlocked a not-locked lock at 0x........
   at 0x........: pthread_rwlock_unlock* (hg_intercepts.c:...)
   by 0x........: main (tc12_rwl_trivial.c:35)
  Lock at 0x........ was first observed
   at 0x........: pthread_rwlock_init* (hg_intercepts.c:...)
   by 0x........: main (tc12_rwl_trivial.c:24)

Thread #x's call to pthread_rwlock_unlock failed
   with error code 22 (EINVAL: Invalid argument)
   at 0x........: pthread_rwlock_unlock* (hg_intercepts.c:...)
   by 0x........: main (tc12_rwl_trivial.c:35)


ERROR SUMMARY: 2 errors from 2 contexts (suppressed: 0 from 0)