Corenlp.py does not go further after loading all 5 modules

[arsalanamjid]

Traceback (most recent call last):
  File "corenlp.py", line 257, in <module>
    nlp = StanfordCoreNLP()
  File "corenlp.py", line 178, in __init__
    self.corenlp.expect("Entering interactive shell.")
  File "/home/whiskey/.local/lib/python2.7/site-packages/pexpect/spawnbase.py", line 341, in expect
    timeout, searchwindowsize, async_)
  File "/home/whiskey/.local/lib/python2.7/site-packages/pexpect/spawnbase.py", line 369, in expect_list
    return exp.expect_loop(timeout)
  File "/home/whiskey/.local/lib/python2.7/site-packages/pexpect/expect.py", line 116, in expect_loop
    return self.timeout(e)
  File "/home/whiskey/.local/lib/python2.7/site-packages/pexpect/expect.py", line 80, in timeout
    raise TIMEOUT(msg)
pexpect.exceptions.TIMEOUT: Timeout exceeded.
<pexpect.pty_spawn.spawn object at 0x7f1cbb072050>
command: /usr/bin/java
args: ['/usr/bin/java', '-Xmx1800m', '-cp', './stanford-corenlp-full-2018-02-27/stanford-corenlp-3.9.1.jar:./stanford-corenlp-full-2018-02-27/stanford-corenlp-3.9.1-models.jar:./stanford-corenlp-full-2018-02-27/joda-time.jar:./stanford-corenlp-full-2018-02-27/xom.jar:./stanford-corenlp-full-2018-02-27/jollyday.jar', 'edu.stanford.nlp.pipeline.StanfordCoreNLP', '-props', 'default.properties']
buffer (last 100 chars): '[0.7 sec].\r\nAdding annotator dcoref\r\n'
before (last 100 chars): '[0.7 sec].\r\nAdding annotator dcoref\r\n'
after: <class 'pexpect.exceptions.TIMEOUT'>
match: None
match_index: None
exitstatus: None
flag_eof: False
pid: 7185
child_fd: 5
closed: False
timeout: 30
delimiter: <class 'pexpect.exceptions.EOF'>
logfile: None
logfile_read: None
logfile_send: None
maxread: 2000
ignorecase: False
searchwindowsize: None
delaybeforesend: 0.05
delayafterclose: 0.1
delayafterterminate: 0.1
searcher: searcher_re:
    0: re.compile("Entering interactive shell.")