BUG-429 : fixed unstable tests when two verify jobs are running.

Change-Id: I176a9322b5f33d2349cc25be9d71d74112bb1cc1
Signed-off-by: Dana Kutenicsova <dkutenic@cisco.com>
(cherry picked from commit 3cdcdbd193e94c8771cb36a5dcb1155755b2ec06)