#19020: random failure with BalancedIncompleteBlockDesign.arc
-------------------------------------+-------------------------------------
       Reporter:  vdelecroix         |        Owner:
           Type:  defect             |       Status:  needs_review
       Priority:  major              |    Milestone:  sage-6.9
      Component:  combinatorial      |   Resolution:
  designs                            |    Merged in:
       Keywords:                     |    Reviewers:
        Authors:  Vincent Delecroix  |  Work issues:
Report Upstream:  N/A                |       Commit:
         Branch:                     |  2bfd687d089a7d6489795db20ef255fd071e2aa2
  u/vdelecroix/19020                 |     Stopgaps:
   Dependencies:                     |
-------------------------------------+-------------------------------------
Changes (by vdelecroix):

 * status:  new => needs_review
 * commit:   => 2bfd687d089a7d6489795db20ef255fd071e2aa2
 * branch:   => u/vdelecroix/19020


Old description:

> See
> [http://patchbot.sagemath.org/log/18246/debian/8.1/x86_64/3.16.0-4-amd64/mangouste/2015-08-12%2020:09:03%20+0000?short
> this example].

New description:

 The resolution of MILP involves randomness. So the answer should not be
 taken as being constant. Such assumption was made in a doctest of
 `BalancedIncompleteBlockDesign.arc`. See
 
[http://patchbot.sagemath.org/log/18246/debian/8.1/x86_64/3.16.0-4-amd64/mangouste/2015-08-12%2020:09:03%20+0000?short
 this example] for a failure (using `CBC` backend).

--

Comment:

 New commits:
 
||[http://git.sagemath.org/sage.git/commit/?id=2bfd687d089a7d6489795db20ef255fd071e2aa2
 2bfd687]||{{{Trac 19020: fix random failure in BIBD arc}}}||

--
Ticket URL: <http://trac.sagemath.org/ticket/19020#comment:1>
Sage <http://www.sagemath.org>
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