[Couenne-tickets] [Couenne] #33: Counne says "tightened NLP is infeasible"

[Couenne]

#33: Counne says "tightened NLP is infeasible"
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  Reporter:  thofrei  |      Owner:  pbelotti
      Type:  defect   |     Status:  new
  Priority:  major    |  Milestone:
 Component:  Couenne  |    Version:
Resolution:           |   Keywords:  infeasible Couenne tightened NLP
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Comment (by pbelotti):

 I do observe the same problem. Unfortunately it seems that it's hard to
 find a feasible solution. Couenne has a feasibility pump heuristic that,
 although quite computationally expensive, might help. You can activate it
 with options

 {{{
 feas_pump_heuristic yes
 feas_pump_level 1
 }}}

 The second option is to limit the amount of calls to the heuristic, given
 that it can really take a lot of time, especially on such a large problem.
 Make sure SCIP is installed.

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Ticket URL: <https://projects.coin-or.org/Couenne/ticket/33#comment:10>
Couenne <https://projects.coin-or.org/Couenne>
Couenne, a solver for non-convex MINLP