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initialise a barrier with zero count
Thread #x is the program's root thread
Thread #x: pthread_barrier_init: 'count' argument is zero
at 0x........: pthread_barrier_init (hg_intercepts.c:...)
by 0x........: main (bar_bad.c:39)
Thread #x's call to pthread_barrier_init failed
with error code 22 (EINVAL: Invalid argument)
at 0x........: pthread_barrier_init (hg_intercepts.c:...)
by 0x........: main (bar_bad.c:39)
initialise a barrier twice
Thread #x: pthread_barrier_init: barrier is already initialised
at 0x........: pthread_barrier_init (hg_intercepts.c:...)
by 0x........: main (bar_bad.c:45)
initialise a barrier which has threads waiting on it
Thread #x: pthread_barrier_init: barrier is already initialised
at 0x........: pthread_barrier_init (hg_intercepts.c:...)
by 0x........: main (bar_bad.c:57)
Thread #x: pthread_barrier_init: threads are waiting at barrier
at 0x........: pthread_barrier_init (hg_intercepts.c:...)
by 0x........: main (bar_bad.c:57)
destroy a barrier that has waiting threads
Thread #x: pthread_barrier_destroy: threads are waiting at barrier
at 0x........: pthread_barrier_destroy (hg_intercepts.c:...)
by 0x........: main (bar_bad.c:69)
Thread #x's call to pthread_barrier_destroy failed
with error code 16 (EBUSY: Device or resource busy)
at 0x........: pthread_barrier_destroy (hg_intercepts.c:...)
by 0x........: main (bar_bad.c:69)
destroy a barrier that was never initialised
Thread #x: pthread_barrier_destroy: barrier was never initialised
at 0x........: pthread_barrier_destroy (hg_intercepts.c:...)
by 0x........: main (bar_bad.c:80)
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