Appears you downloaded an older bootstrap.
Seems, from the post, that the file is now up to: Sat May 12 01:37:52 UTC 2018
In any case, you're almost done.
I thought so too, but I downloaded it after this dooglus post
https://bitcointalk.org/index.php?topic=623147.msg36115160#msg36115160and reaped it after week again, but no change, also file same size as mentioned dooglus.
With such sync speed I need yet months to be done

So, it's taking you a week in syncing from the bootstrap file which was only 2 weeks ago?
Yes, you definately have a problem.
BUT... you said you see the file is the same size. This doesn't mean anything if the file is corrupt. A corrupt file is a corrupt file no matter how big/small the file is.
Did you check the checksum / the current file is:
To verify that you have the right file:
$ sha256sum bootstrap.dat
713b93b7458e88500f1e32557f0bc58b9f05a6b13e1de31576f25f5300184c96 bootstrap.dat
and/or force your torrent client to check it.