[Dip-tickets] [Dip] #23: Negative bounds causing problem

[Dip]

#23: Negative bounds causing problem
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Reporter:  mosu001  |       Type:  defect
  Status:  new      |   Priority:  major 
 Version:  0.8.6    |   Keywords:        
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 I have a problem that at this stage is only a master problem with no
 subproblems. However, some of the variables have negative lower bounds.
 This causes a problem in solutionUpdate in DecompAlgo.cpp as any primal
 column with a negative value causes

 (*m_osLog) << "ERROR: NEGATIVE LAMBDA, but Osi returns as optimal"
            << " assume it was meant to be infeasible." << endl;

 I can change my formulation to only have non-negative bounds, but perhaps
 a warning might be good?

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Ticket URL: <https://projects.coin-or.org/Dip/ticket/23>
Dip <https://projects.coin-or.org/Dip>
An extensible software framework for implementing decompositon-based bounding algorithms for use in solving large-scale discrete optimization problems.