>>> gr_fir_ccf: using SSE
>>> gr_fir_ccc: using SSE
F
======================================================================
FAIL: test_basic (__main__.test_constellation_receiver)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/home/niulab/gnuradio/gr-digital/python/qa_constellation_receiver.py", line 100, in test_basic
    self.assertTrue(correct > REQ_CORRECT)
AssertionError: False is not true

----------------------------------------------------------------------
Ran 1 test in 1.060s

FAILED (failures=1)
Using Volk machine: ssse3_32
constellation: <constellation psk (m=2)>  differential: True  correct: 1.0
constellation: <constellation psk (m=2)>  differential: True  correct: 1.0
constellation: <constellation psk (m=4)>  differential: True  correct: 1.0
constellation: <constellation psk (m=4)>  differential: True  correct: 1.0
constellation: <constellation psk (m=8)>  differential: True  correct: 0.964601769912
constellation: <constellation psk (m=8)>  differential: True  correct: 1.0
constellation: <constellation psk (m=16)>  differential: True  correct: 0.96837944664
constellation: <constellation psk (m=16)>  differential: True  correct: 0.990118577075
constellation: <constellation psk (m=32)>  differential: True  correct: 0.971830985915
constellation: <constellation psk (m=32)>  differential: True  correct: 0.945226917058
constellation: <constellation psk (m=64)>  differential: True  correct: 0.799687010955
constellation: <constellation psk (m=2)>  differential: True  correct: 1.0
constellation: <constellation psk (m=2)>  differential: True  correct: 1.0
constellation: <constellation psk (m=4)>  differential: True  correct: 1.0
constellation: <constellation psk (m=4)>  differential: True  correct: 1.0
constellation: <constellation psk (m=8)>  differential: True  correct: 0.955752212389
constellation: <constellation psk (m=8)>  differential: True  correct: 0.902654867257
constellation: <constellation psk (m=16)>  differential: True  correct: 0.98418972332
constellation: <constellation psk (m=16)>  differential: True  correct: 0.99209486166
constellation: <constellation psk (m=32)>  differential: True  correct: 0.954616588419
constellation: <constellation psk (m=32)>  differential: True  correct: 0.978090766823
constellation: <constellation psk (m=64)>  differential: True  correct: 0.788732394366