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<p class="MsoNormal">Two minor issues. This is through the C++ CBCModel API using the latest CBC.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<ol style="margin-top:0in" start="1" type="1">
<li class="MsoListParagraph" style="margin-left:0in;mso-list:l0 level1 lfo1">I set max time (1300 seconds), but CBC did not stop until after 19,900 seconds.<o:p></o:p></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l0 level1 lfo1">This is a maximization problem, but the final summary states “Lower bound” for the bound. It might be cleaner to just say “bound” – to avoid confusion.<o:p></o:p></li></ol>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">command line - cbc -solve -quit -seconds 1300 (default strategy 1)<o:p></o:p></p>
<p class="MsoNormal">Continuous objective value is 1.88508e+09 - 855.75 seconds<o:p></o:p></p>
<p class="MsoNormal">Cgl0005I 998000 SOS with 13941976 members<o:p></o:p></p>
<p class="MsoNormal">Cgl0004I processed model has 999000 rows, 13941976 columns (13941976 integer (13 941976 of which binary)) and 26887952 elements<o:p></o:p></p>
<p class="MsoNormal">Cutoff increment increased from 1e-05 to 0.9999<o:p></o:p></p>
<p class="MsoNormal">Cbc0020I Exiting on maximum time<o:p></o:p></p>
<p class="MsoNormal">Cbc0005I Partial search - best objective 1e+50 (best possible -1.885078e+09), to ok 0 iterations and 0 nodes (19624.31 seconds)<o:p></o:p></p>
<p class="MsoNormal">Cbc0035I Maximum depth 0, 0 variables fixed on reduced cost<o:p></o:p></p>
<p class="MsoNormal">Cuts at root node changed objective from -1.88508e+09 to -1.88508e+09<o:p></o:p></p>
<p class="MsoNormal">Probing was tried 0 times and created 0 cuts of which 0 were active after adding rounds of cuts (0.000 seconds)<o:p></o:p></p>
<p class="MsoNormal">Gomory was tried 0 times and created 0 cuts of which 0 were active after adding rounds of cuts (0.000 seconds)<o:p></o:p></p>
<p class="MsoNormal">Knapsack was tried 0 times and created 0 cuts of which 0 were active after addin g rounds of cuts (0.000 seconds)<o:p></o:p></p>
<p class="MsoNormal">Clique was tried 0 times and created 0 cuts of which 0 were active after adding rounds of cuts (0.000 seconds)<o:p></o:p></p>
<p class="MsoNormal">MixedIntegerRounding2 was tried 0 times and created 0 cuts of which 0 were activ e after adding rounds of cuts (0.000 seconds)<o:p></o:p></p>
<p class="MsoNormal">FlowCover was tried 0 times and created 0 cuts of which 0 were active after addi ng rounds of cuts (0.000 seconds)<o:p></o:p></p>
<p class="MsoNormal">TwoMirCuts was tried 0 times and created 0 cuts of which 0 were active after add ing rounds of cuts (0.000 seconds)<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Result - Stopped on time limit<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">No feasible solution found<o:p></o:p></p>
<p class="MsoNormal">Lower bound: 1885078031.000<o:p></o:p></p>
<p class="MsoNormal">Enumerated nodes: 0<o:p></o:p></p>
<p class="MsoNormal">Total iterations: 0<o:p></o:p></p>
<p class="MsoNormal">Time (CPU seconds): 19928.34<o:p></o:p></p>
<p class="MsoNormal">Time (Wallclock seconds): 19973.07<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Total time (CPU seconds): 19930.87 (Wallclock seconds): 19975.64<o:p></o:p></p>
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