Thread #x was created
   ...
   by 0x........: pthread_create@* (hg_intercepts.c:...)
   by 0x........: barriers_and_races (pth_barrier.c:84)
   by 0x........: main (pth_barrier.c:107)

Thread #x was created
   ...
   by 0x........: pthread_create@* (hg_intercepts.c:...)
   by 0x........: barriers_and_races (pth_barrier.c:84)
   by 0x........: main (pth_barrier.c:107)

Possible data race during write of size 4 at 0x........ by thread #x
   at 0x........: threadfunc (pth_barrier.c:57)
   by 0x........: mythread_wrapper (hg_intercepts.c:...)
   ...
 This conflicts with a previous write of size 4 by thread #x
   at 0x........: threadfunc (pth_barrier.c:57)
   by 0x........: mythread_wrapper (hg_intercepts.c:...)
   ...
 Address 0x........ is 0 bytes inside a block of size 128 alloc'd
   at 0x........: malloc (vg_replace_malloc.c:...)
   by 0x........: barriers_and_races (pth_barrier.c:72)
   by 0x........: main (pth_barrier.c:107)

Possible data race during write of size 4 at 0x........ by thread #x
   at 0x........: threadfunc (pth_barrier.c:57)
   by 0x........: mythread_wrapper (hg_intercepts.c:...)
   ...
 This conflicts with a previous write of size 4 by thread #x
   at 0x........: threadfunc (pth_barrier.c:57)
   by 0x........: mythread_wrapper (hg_intercepts.c:...)
   ...
 Address 0x........ is 4 bytes inside a block of size 128 alloc'd
   at 0x........: malloc (vg_replace_malloc.c:...)
   by 0x........: barriers_and_races (pth_barrier.c:72)
   by 0x........: main (pth_barrier.c:107)

Possible data race during write of size 4 at 0x........ by thread #x
   at 0x........: threadfunc (pth_barrier.c:57)
   by 0x........: mythread_wrapper (hg_intercepts.c:...)
   ...
 This conflicts with a previous write of size 4 by thread #x
   at 0x........: threadfunc (pth_barrier.c:57)
   by 0x........: mythread_wrapper (hg_intercepts.c:...)
   ...
 Address 0x........ is 8 bytes inside a block of size 128 alloc'd
   at 0x........: malloc (vg_replace_malloc.c:...)
   by 0x........: barriers_and_races (pth_barrier.c:72)
   by 0x........: main (pth_barrier.c:107)

Possible data race during write of size 4 at 0x........ by thread #x
   at 0x........: threadfunc (pth_barrier.c:57)
   by 0x........: mythread_wrapper (hg_intercepts.c:...)
   ...
 This conflicts with a previous write of size 4 by thread #x
   at 0x........: threadfunc (pth_barrier.c:57)
   by 0x........: mythread_wrapper (hg_intercepts.c:...)
   ...
 Address 0x........ is 12 bytes inside a block of size 128 alloc'd
   at 0x........: malloc (vg_replace_malloc.c:...)
   by 0x........: barriers_and_races (pth_barrier.c:72)
   by 0x........: main (pth_barrier.c:107)

Possible data race during write of size 4 at 0x........ by thread #x
   at 0x........: threadfunc (pth_barrier.c:57)
   by 0x........: mythread_wrapper (hg_intercepts.c:...)
   ...
 This conflicts with a previous write of size 4 by thread #x
   at 0x........: threadfunc (pth_barrier.c:57)
   by 0x........: mythread_wrapper (hg_intercepts.c:...)
   ...
 Address 0x........ is 16 bytes inside a block of size 128 alloc'd
   at 0x........: malloc (vg_replace_malloc.c:...)
   by 0x........: barriers_and_races (pth_barrier.c:72)
   by 0x........: main (pth_barrier.c:107)

Possible data race during write of size 4 at 0x........ by thread #x
   at 0x........: threadfunc (pth_barrier.c:57)
   by 0x........: mythread_wrapper (hg_intercepts.c:...)
   ...
 This conflicts with a previous write of size 4 by thread #x
   at 0x........: threadfunc (pth_barrier.c:57)
   by 0x........: mythread_wrapper (hg_intercepts.c:...)
   ...
 Address 0x........ is 20 bytes inside a block of size 128 alloc'd
   at 0x........: malloc (vg_replace_malloc.c:...)
   by 0x........: barriers_and_races (pth_barrier.c:72)
   by 0x........: main (pth_barrier.c:107)

Possible data race during write of size 4 at 0x........ by thread #x
   at 0x........: threadfunc (pth_barrier.c:57)
   by 0x........: mythread_wrapper (hg_intercepts.c:...)
   ...
 This conflicts with a previous write of size 4 by thread #x
   at 0x........: threadfunc (pth_barrier.c:57)
   by 0x........: mythread_wrapper (hg_intercepts.c:...)
   ...
 Address 0x........ is 24 bytes inside a block of size 128 alloc'd
   at 0x........: malloc (vg_replace_malloc.c:...)
   by 0x........: barriers_and_races (pth_barrier.c:72)
   by 0x........: main (pth_barrier.c:107)

Possible data race during write of size 4 at 0x........ by thread #x
   at 0x........: threadfunc (pth_barrier.c:57)
   by 0x........: mythread_wrapper (hg_intercepts.c:...)
   ...
 This conflicts with a previous write of size 4 by thread #x
   at 0x........: threadfunc (pth_barrier.c:57)
   by 0x........: mythread_wrapper (hg_intercepts.c:...)
   ...
 Address 0x........ is 28 bytes inside a block of size 128 alloc'd
   at 0x........: malloc (vg_replace_malloc.c:...)
   by 0x........: barriers_and_races (pth_barrier.c:72)
   by 0x........: main (pth_barrier.c:107)

Possible data race during write of size 4 at 0x........ by thread #x
   at 0x........: threadfunc (pth_barrier.c:57)
   by 0x........: mythread_wrapper (hg_intercepts.c:...)
   ...
 This conflicts with a previous write of size 4 by thread #x
   at 0x........: threadfunc (pth_barrier.c:57)
   by 0x........: mythread_wrapper (hg_intercepts.c:...)
   ...
 Address 0x........ is 32 bytes inside a block of size 128 alloc'd
   at 0x........: malloc (vg_replace_malloc.c:...)
   by 0x........: barriers_and_races (pth_barrier.c:72)
   by 0x........: main (pth_barrier.c:107)

Possible data race during write of size 4 at 0x........ by thread #x
   at 0x........: threadfunc (pth_barrier.c:57)
   by 0x........: mythread_wrapper (hg_intercepts.c:...)
   ...
 This conflicts with a previous write of size 4 by thread #x
   at 0x........: threadfunc (pth_barrier.c:57)
   by 0x........: mythread_wrapper (hg_intercepts.c:...)
   ...
 Address 0x........ is 36 bytes inside a block of size 128 alloc'd
   at 0x........: malloc (vg_replace_malloc.c:...)
   by 0x........: barriers_and_races (pth_barrier.c:72)
   by 0x........: main (pth_barrier.c:107)

Possible data race during write of size 4 at 0x........ by thread #x
   at 0x........: threadfunc (pth_barrier.c:57)
   by 0x........: mythread_wrapper (hg_intercepts.c:...)
   ...
 This conflicts with a previous write of size 4 by thread #x
   at 0x........: threadfunc (pth_barrier.c:57)
   by 0x........: mythread_wrapper (hg_intercepts.c:...)
   ...
 Address 0x........ is 40 bytes inside a block of size 128 alloc'd
   at 0x........: malloc (vg_replace_malloc.c:...)
   by 0x........: barriers_and_races (pth_barrier.c:72)
   by 0x........: main (pth_barrier.c:107)

Possible data race during write of size 4 at 0x........ by thread #x
   at 0x........: threadfunc (pth_barrier.c:57)
   by 0x........: mythread_wrapper (hg_intercepts.c:...)
   ...
 This conflicts with a previous write of size 4 by thread #x
   at 0x........: threadfunc (pth_barrier.c:57)
   by 0x........: mythread_wrapper (hg_intercepts.c:...)
   ...
 Address 0x........ is 44 bytes inside a block of size 128 alloc'd
   at 0x........: malloc (vg_replace_malloc.c:...)
   by 0x........: barriers_and_races (pth_barrier.c:72)
   by 0x........: main (pth_barrier.c:107)

Possible data race during write of size 4 at 0x........ by thread #x
   at 0x........: threadfunc (pth_barrier.c:57)
   by 0x........: mythread_wrapper (hg_intercepts.c:...)
   ...
 This conflicts with a previous write of size 4 by thread #x
   at 0x........: threadfunc (pth_barrier.c:57)
   by 0x........: mythread_wrapper (hg_intercepts.c:...)
   ...
 Address 0x........ is 48 bytes inside a block of size 128 alloc'd
   at 0x........: malloc (vg_replace_malloc.c:...)
   by 0x........: barriers_and_races (pth_barrier.c:72)
   by 0x........: main (pth_barrier.c:107)

Possible data race during write of size 4 at 0x........ by thread #x
   at 0x........: threadfunc (pth_barrier.c:57)
   by 0x........: mythread_wrapper (hg_intercepts.c:...)
   ...
 This conflicts with a previous write of size 4 by thread #x
   at 0x........: threadfunc (pth_barrier.c:57)
   by 0x........: mythread_wrapper (hg_intercepts.c:...)
   ...
 Address 0x........ is 52 bytes inside a block of size 128 alloc'd
   at 0x........: malloc (vg_replace_malloc.c:...)
   by 0x........: barriers_and_races (pth_barrier.c:72)
   by 0x........: main (pth_barrier.c:107)

Possible data race during write of size 4 at 0x........ by thread #x
   at 0x........: threadfunc (pth_barrier.c:57)
   by 0x........: mythread_wrapper (hg_intercepts.c:...)
   ...
 This conflicts with a previous write of size 4 by thread #x
   at 0x........: threadfunc (pth_barrier.c:57)
   by 0x........: mythread_wrapper (hg_intercepts.c:...)
   ...
 Address 0x........ is 56 bytes inside a block of size 128 alloc'd
   at 0x........: malloc (vg_replace_malloc.c:...)
   by 0x........: barriers_and_races (pth_barrier.c:72)
   by 0x........: main (pth_barrier.c:107)

Possible data race during write of size 4 at 0x........ by thread #x
   at 0x........: threadfunc (pth_barrier.c:57)
   by 0x........: mythread_wrapper (hg_intercepts.c:...)
   ...
 This conflicts with a previous write of size 4 by thread #x
   at 0x........: threadfunc (pth_barrier.c:57)
   by 0x........: mythread_wrapper (hg_intercepts.c:...)
   ...
 Address 0x........ is 60 bytes inside a block of size 128 alloc'd
   at 0x........: malloc (vg_replace_malloc.c:...)
   by 0x........: barriers_and_races (pth_barrier.c:72)
   by 0x........: main (pth_barrier.c:107)

Possible data race during write of size 4 at 0x........ by thread #x
   at 0x........: threadfunc (pth_barrier.c:57)
   by 0x........: mythread_wrapper (hg_intercepts.c:...)
   ...
 This conflicts with a previous write of size 4 by thread #x
   at 0x........: threadfunc (pth_barrier.c:57)
   by 0x........: mythread_wrapper (hg_intercepts.c:...)
   ...
 Address 0x........ is 64 bytes inside a block of size 128 alloc'd
   at 0x........: malloc (vg_replace_malloc.c:...)
   by 0x........: barriers_and_races (pth_barrier.c:72)
   by 0x........: main (pth_barrier.c:107)

Possible data race during write of size 4 at 0x........ by thread #x
   at 0x........: threadfunc (pth_barrier.c:57)
   by 0x........: mythread_wrapper (hg_intercepts.c:...)
   ...
 This conflicts with a previous write of size 4 by thread #x
   at 0x........: threadfunc (pth_barrier.c:57)
   by 0x........: mythread_wrapper (hg_intercepts.c:...)
   ...
 Address 0x........ is 68 bytes inside a block of size 128 alloc'd
   at 0x........: malloc (vg_replace_malloc.c:...)
   by 0x........: barriers_and_races (pth_barrier.c:72)
   by 0x........: main (pth_barrier.c:107)

Possible data race during write of size 4 at 0x........ by thread #x
   at 0x........: threadfunc (pth_barrier.c:57)
   by 0x........: mythread_wrapper (hg_intercepts.c:...)
   ...
 This conflicts with a previous write of size 4 by thread #x
   at 0x........: threadfunc (pth_barrier.c:57)
   by 0x........: mythread_wrapper (hg_intercepts.c:...)
   ...
 Address 0x........ is 72 bytes inside a block of size 128 alloc'd
   at 0x........: malloc (vg_replace_malloc.c:...)
   by 0x........: barriers_and_races (pth_barrier.c:72)
   by 0x........: main (pth_barrier.c:107)

Possible data race during write of size 4 at 0x........ by thread #x
   at 0x........: threadfunc (pth_barrier.c:57)
   by 0x........: mythread_wrapper (hg_intercepts.c:...)
   ...
 This conflicts with a previous write of size 4 by thread #x
   at 0x........: threadfunc (pth_barrier.c:57)
   by 0x........: mythread_wrapper (hg_intercepts.c:...)
   ...
 Address 0x........ is 76 bytes inside a block of size 128 alloc'd
   at 0x........: malloc (vg_replace_malloc.c:...)
   by 0x........: barriers_and_races (pth_barrier.c:72)
   by 0x........: main (pth_barrier.c:107)

Possible data race during write of size 4 at 0x........ by thread #x
   at 0x........: threadfunc (pth_barrier.c:57)
   by 0x........: mythread_wrapper (hg_intercepts.c:...)
   ...
 This conflicts with a previous write of size 4 by thread #x
   at 0x........: threadfunc (pth_barrier.c:57)
   by 0x........: mythread_wrapper (hg_intercepts.c:...)
   ...
 Address 0x........ is 80 bytes inside a block of size 128 alloc'd
   at 0x........: malloc (vg_replace_malloc.c:...)
   by 0x........: barriers_and_races (pth_barrier.c:72)
   by 0x........: main (pth_barrier.c:107)

Possible data race during write of size 4 at 0x........ by thread #x
   at 0x........: threadfunc (pth_barrier.c:57)
   by 0x........: mythread_wrapper (hg_intercepts.c:...)
   ...
 This conflicts with a previous write of size 4 by thread #x
   at 0x........: threadfunc (pth_barrier.c:57)
   by 0x........: mythread_wrapper (hg_intercepts.c:...)
   ...
 Address 0x........ is 84 bytes inside a block of size 128 alloc'd
   at 0x........: malloc (vg_replace_malloc.c:...)
   by 0x........: barriers_and_races (pth_barrier.c:72)
   by 0x........: main (pth_barrier.c:107)

Possible data race during write of size 4 at 0x........ by thread #x
   at 0x........: threadfunc (pth_barrier.c:57)
   by 0x........: mythread_wrapper (hg_intercepts.c:...)
   ...
 This conflicts with a previous write of size 4 by thread #x
   at 0x........: threadfunc (pth_barrier.c:57)
   by 0x........: mythread_wrapper (hg_intercepts.c:...)
   ...
 Address 0x........ is 88 bytes inside a block of size 128 alloc'd
   at 0x........: malloc (vg_replace_malloc.c:...)
   by 0x........: barriers_and_races (pth_barrier.c:72)
   by 0x........: main (pth_barrier.c:107)

Possible data race during write of size 4 at 0x........ by thread #x
   at 0x........: threadfunc (pth_barrier.c:57)
   by 0x........: mythread_wrapper (hg_intercepts.c:...)
   ...
 This conflicts with a previous write of size 4 by thread #x
   at 0x........: threadfunc (pth_barrier.c:57)
   by 0x........: mythread_wrapper (hg_intercepts.c:...)
   ...
 Address 0x........ is 92 bytes inside a block of size 128 alloc'd
   at 0x........: malloc (vg_replace_malloc.c:...)
   by 0x........: barriers_and_races (pth_barrier.c:72)
   by 0x........: main (pth_barrier.c:107)

Possible data race during write of size 4 at 0x........ by thread #x
   at 0x........: threadfunc (pth_barrier.c:57)
   by 0x........: mythread_wrapper (hg_intercepts.c:...)
   ...
 This conflicts with a previous write of size 4 by thread #x
   at 0x........: threadfunc (pth_barrier.c:57)
   by 0x........: mythread_wrapper (hg_intercepts.c:...)
   ...
 Address 0x........ is 96 bytes inside a block of size 128 alloc'd
   at 0x........: malloc (vg_replace_malloc.c:...)
   by 0x........: barriers_and_races (pth_barrier.c:72)
   by 0x........: main (pth_barrier.c:107)

Possible data race during write of size 4 at 0x........ by thread #x
   at 0x........: threadfunc (pth_barrier.c:57)
   by 0x........: mythread_wrapper (hg_intercepts.c:...)
   ...
 This conflicts with a previous write of size 4 by thread #x
   at 0x........: threadfunc (pth_barrier.c:57)
   by 0x........: mythread_wrapper (hg_intercepts.c:...)
   ...
 Address 0x........ is 100 bytes inside a block of size 128 alloc'd
   at 0x........: malloc (vg_replace_malloc.c:...)
   by 0x........: barriers_and_races (pth_barrier.c:72)
   by 0x........: main (pth_barrier.c:107)

Possible data race during write of size 4 at 0x........ by thread #x
   at 0x........: threadfunc (pth_barrier.c:57)
   by 0x........: mythread_wrapper (hg_intercepts.c:...)
   ...
 This conflicts with a previous write of size 4 by thread #x
   at 0x........: threadfunc (pth_barrier.c:57)
   by 0x........: mythread_wrapper (hg_intercepts.c:...)
   ...
 Address 0x........ is 104 bytes inside a block of size 128 alloc'd
   at 0x........: malloc (vg_replace_malloc.c:...)
   by 0x........: barriers_and_races (pth_barrier.c:72)
   by 0x........: main (pth_barrier.c:107)

Possible data race during write of size 4 at 0x........ by thread #x
   at 0x........: threadfunc (pth_barrier.c:57)
   by 0x........: mythread_wrapper (hg_intercepts.c:...)
   ...
 This conflicts with a previous write of size 4 by thread #x
   at 0x........: threadfunc (pth_barrier.c:57)
   by 0x........: mythread_wrapper (hg_intercepts.c:...)
   ...
 Address 0x........ is 108 bytes inside a block of size 128 alloc'd
   at 0x........: malloc (vg_replace_malloc.c:...)
   by 0x........: barriers_and_races (pth_barrier.c:72)
   by 0x........: main (pth_barrier.c:107)

Possible data race during write of size 4 at 0x........ by thread #x
   at 0x........: threadfunc (pth_barrier.c:57)
   by 0x........: mythread_wrapper (hg_intercepts.c:...)
   ...
 This conflicts with a previous write of size 4 by thread #x
   at 0x........: threadfunc (pth_barrier.c:57)
   by 0x........: mythread_wrapper (hg_intercepts.c:...)
   ...
 Address 0x........ is 112 bytes inside a block of size 128 alloc'd
   at 0x........: malloc (vg_replace_malloc.c:...)
   by 0x........: barriers_and_races (pth_barrier.c:72)
   by 0x........: main (pth_barrier.c:107)

Possible data race during write of size 4 at 0x........ by thread #x
   at 0x........: threadfunc (pth_barrier.c:57)
   by 0x........: mythread_wrapper (hg_intercepts.c:...)
   ...
 This conflicts with a previous write of size 4 by thread #x
   at 0x........: threadfunc (pth_barrier.c:57)
   by 0x........: mythread_wrapper (hg_intercepts.c:...)
   ...
 Address 0x........ is 116 bytes inside a block of size 128 alloc'd
   at 0x........: malloc (vg_replace_malloc.c:...)
   by 0x........: barriers_and_races (pth_barrier.c:72)
   by 0x........: main (pth_barrier.c:107)

Possible data race during write of size 4 at 0x........ by thread #x
   at 0x........: threadfunc (pth_barrier.c:57)
   by 0x........: mythread_wrapper (hg_intercepts.c:...)
   ...
 This conflicts with a previous write of size 4 by thread #x
   at 0x........: threadfunc (pth_barrier.c:57)
   by 0x........: mythread_wrapper (hg_intercepts.c:...)
   ...
 Address 0x........ is 120 bytes inside a block of size 128 alloc'd
   at 0x........: malloc (vg_replace_malloc.c:...)
   by 0x........: barriers_and_races (pth_barrier.c:72)
   by 0x........: main (pth_barrier.c:107)

Possible data race during write of size 4 at 0x........ by thread #x
   at 0x........: threadfunc (pth_barrier.c:57)
   by 0x........: mythread_wrapper (hg_intercepts.c:...)
   ...
 This conflicts with a previous write of size 4 by thread #x
   at 0x........: threadfunc (pth_barrier.c:57)
   by 0x........: mythread_wrapper (hg_intercepts.c:...)
   ...
 Address 0x........ is 124 bytes inside a block of size 128 alloc'd
   at 0x........: malloc (vg_replace_malloc.c:...)
   by 0x........: barriers_and_races (pth_barrier.c:72)
   by 0x........: main (pth_barrier.c:107)