[SCIP] how to display the LP at the best node after the problem is solved

[Benjamin Müller]

Dear Myroslav,

you could implement the SCIP_DECL_CONSPRINT callback of your constraint 
handler and then write/display your problem in the cip format with 
SCIPwriteTransProblem()/SCIPprintTransProblem() in an event handler that 
  catches the SCIP_EVENTTYPE_BESTSOLFOUND event. Please have a look at 
scip/examples/Eventhdlr/src/event_bestsol.c for an example.

Best,
Benny

On 09/06/2018 05:30 PM, myroslav wrote:
> Dear SCIP community,
> 
> 
> I have a branch and price algorithm and I am adding some constraints 
> when doing branching at a node. I wondered how I could 
> print/view/display the problem together with its constraints(including 
> the branching constraints) at the node where SCIP found the best 
> solution. I tried "display transproblem" in the interactive shell after 
> the problem was solved but I am not sure where the problem displayed is 
> taken from, because it does not seem to contain all the constraints 
> corresponding to the branching decisions that should have been made.
> 
> 
> Thanks,
> 
> Myroslav
> 
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______________________________
Benjamin Müller
Zuse Institute Berlin
Takustr. 7, 14195 Berlin
benjamin.mueller at zib.de
+49 30 841 85-195