<br><blockquote><span style="font-size: 10pt;"><span style="font-size: 10pt;">Hi<br><br>I'm working with couenne and cplex as a subsolver. I found an optimal, but when I try to display the results, it shows a different solution. <br><br>CPX0000 CPLEX Error 1217: No solution exists.<br>CPX0000 CPLEX Error 1217: No solution exists.<br>CPX0000 CPLEX Error 1217: No solution exists.<br>CPX0000 CPLEX Error 1217: No solution exists.<br>Cbc0001I Search completed - <span style="font-weight: bold;">best objective -12707779302.36208</span>, took 557444 iterations and 10274 nodes (275.85 seconds)<br>Cbc0032I Strong branching done 0 times (285622 iterations), fathomed 13 nodes and fixed 185 variables<br>Cbc0035I Maximum depth 282, 4 variables fixed on reduced cost<br>CPX0000 CPLEX Error 1217: No solution exists.<br>CPX0000 CPLEX Error 1217: No solution exists.<br>CPX0000 CPLEX Error 1217: No solution exists.<br>CPX0000 CPLEX Error 1217: No solution exists.<br>CPX0000<br>CPX0000 Iteration Objective In Variable Out Variable<br>CPX0000 1 sI 4645.972072 x78 x77<br>CPX0000 2 sI 4645.970457 x63 x62<br> Couenne convexifier cuts was tried 34282 times and created 845177 cuts of which 30323 were active after adding rounds of cuts<br><br> "Finished"<br><br>couenne: Optimal<br><br>ampl: display total_income,w,vr,vs,vc,or,os,oc,nr,ns,nc,s1,s2,aj,ak;<br><span style="font-weight: bold;">total_income = -362.768 (best objective)</span><br><br>w [*,*]<br>: 1 2 :=<br>1 1250 2500<br>2 1250 2500<br>3 0 0<br>4 226.445 1755.75<br>5 0 0<br>6 0 0<br>7 0 0<br>8 0 0<br>9 0 0<br>10 226.445 1755.75<br>11 57.2661 1590.52<br>12 0 0<br>13 0 0<br>14 0 0<br></span><br>I solved the same problem using Couenne without Cplex and I got almost the same result (<span style="font-weight: bold; font-size: 10pt;"> total income-12E-10). </span></span><span style="font-size: 10pt;"><span style="font-size: 10pt;">I when i did the display i didn't have any problem. Do you know why I have troubles in display when I use Couenne with Cplex?<br><br>Thank you<br><br>Best regards. </span><br><br>Nathalie Jamett<br>PhD Student <br>University of Antofagasta<br>Chile. <br></span><br>
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