#12309: GLPK crashes or hangs on certain inputs
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   Reporter:  john_perry          |          Owner:  ncohen                     
                   
       Type:  defect              |         Status:  needs_review               
                   
   Priority:  major               |      Milestone:  sage-5.0                   
                   
  Component:  linear programming  |       Keywords:                             
                   
Work_issues:                      |       Upstream:  Reported upstream. 
Developers deny it's a bug.
   Reviewer:                      |         Author:                             
                   
     Merged:                      |   Dependencies:  #10785                     
                   
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Comment(by john_perry):

 Replying to [comment:7 ncohen]:
 >     * Could you add a doctest that shows the signal returned by your
 code when a bad lp is solved without the preprocessing flag, and how it is
 solved afterwards ?

 Apparently not, by the way. If I try to solve without setting the
 parameter, the doctest fails because an exception is raised.

 I'm looking at the manual to see if I can find a way around this.

-- 
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/12309#comment:9>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica, 
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