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<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;font-size:11pt;font-family:"Calibri","sans-serif"">Dear SCIP community,<span></span></p>

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<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;font-size:11pt;font-family:"Calibri","sans-serif"">I have a binary optimization problem which uses column generation, i. a. because adding
all variables is not possible due to memory limitations. However,
solving takes a lot of time and so pricing is stopped<span> </span>when a timelimit is exceeded, by setting the
result pointer to SCIP_SUCCESS<span style="font-size:9.5pt;font-family:Consolas;color:black">.</span><span></span></p>

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<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;font-size:11pt;font-family:"Calibri","sans-serif"">SCIP continues solving the “final restricted master problem”
but this takes a lot of time.<span></span></p>

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<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;font-size:11pt;font-family:"Calibri","sans-serif"">I made an experiment giving the final transformed lp file to
out-of-the-box-SCIP and the problem is solved more quickly, due to presolvers
and cutting planes.<span></span></p>

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<p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;font-size:11pt;font-family:"Calibri","sans-serif"">Is it possible to restart the solving of the transformed
problem after pricing is stopped and to enable presolving/cutting-planes (e.g. by copying the problem, enabling presolvers, restarting, setting SCIP stage...)?</p><p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;font-size:11pt;font-family:"Calibri","sans-serif""><br></p><p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;font-size:11pt;font-family:"Calibri","sans-serif"">Kind regards,</p><p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;font-size:11pt;font-family:"Calibri","sans-serif"">Jan<br></p><p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;font-size:11pt;font-family:"Calibri","sans-serif""><span></span></p>





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