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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link="#0563C1" vlink="#954F72"><div class=WordSection1><p class=MsoPlainText>I run a model and I get the following:<o:p></o:p></p><p class=MsoPlainText><o:p> </o:p></p><p class=MsoPlainText style='margin-left:.5in'>Cbc0010I After 22900 nodes, 4848 on tree, -220789.86 best solution, best possible -520996.53 (246.43 seconds)<o:p></o:p></p><p class=MsoPlainText style='margin-left:.5in'>Cbc0003I Exiting on maximum nodes<o:p></o:p></p><p class=MsoPlainText style='margin-left:.5in'>Cbc0005I Partial search - best objective -220789.86 (best possible -520996.53), took 715029 iterations and 23000 nodes (248.16 seconds)<o:p></o:p></p><p class=MsoPlainText style='margin-left:.5in'>Cbc0035I Maximum depth 233, 0 variables fixed on reduced cost<o:p></o:p></p><p class=MsoPlainText style='margin-left:.5in'>Cuts at root node changed objective from -522936 to -522936<o:p></o:p></p><p class=MsoPlainText style='margin-left:.5in'>Probing was tried 1 times and created 0 cuts of which 0 were active after adding rounds of cuts (0.018 seconds)<o:p></o:p></p><p class=MsoPlainText style='margin-left:.5in'>Gomory was tried 1 times and created 0 cuts of which 0 were active after adding rounds of cuts (0.001 seconds)<o:p></o:p></p><p class=MsoPlainText style='margin-left:.5in'>Knapsack was tried 1 times and created 0 cuts of which 0 were active after adding rounds of cuts (0.009 seconds)<o:p></o:p></p><p class=MsoPlainText style='margin-left:.5in'>Clique was tried 1 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=MsoPlainText style='margin-left:.5in'>MixedIntegerRounding2 was tried 1 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=MsoPlainText style='margin-left:.5in'>FlowCover was tried 1 times and created 0 cuts of which 0 were active after adding rounds of cuts (0.010 seconds)<o:p></o:p></p><p class=MsoPlainText style='margin-left:.5in'>TwoMirCuts was tried 1 times and created 0 cuts of which 0 were active after adding rounds of cuts (0.003 seconds)<o:p></o:p></p><p class=MsoPlainText style='margin-left:.5in'>Cgl0014I Postprocessing changed objective from -220789.86 to -512469.7 - possible tolerance issue - try without preprocessing<o:p></o:p></p><p class=MsoPlainText style='margin-left:.5in'>2287 bounds tightened after postprocessing<o:p></o:p></p><p class=MsoPlainText style='margin-left:.5in'><o:p> </o:p></p><p class=MsoPlainText style='margin-left:.5in'>883 relaxed row infeasibilities - summing to 8.19412e+09<o:p></o:p></p><p class=MsoPlainText style='margin-left:.5in'>694 relaxed row infeasibilities - summing to 8.29403e+09<o:p></o:p></p><p class=MsoPlainText style='margin-left:.5in'>794 relaxed row infeasibilities - summing to 2.69607e+09<o:p></o:p></p><p class=MsoPlainText style='margin-left:.5in'><o:p> </o:p></p><p class=MsoPlainText style='margin-left:.5in'>Result - Stopped on node limit<o:p></o:p></p><p class=MsoPlainText style='margin-left:.5in'><o:p> </o:p></p><p class=MsoPlainText style='margin-left:.5in'>Objective value: -220789.85997650<o:p></o:p></p><p class=MsoPlainText style='margin-left:.5in'>Lower bound: -520996.529<o:p></o:p></p><p class=MsoPlainText style='margin-left:.5in'>Gap: 0.58<o:p></o:p></p><p class=MsoPlainText style='margin-left:.5in'>Enumerated nodes: 23000<o:p></o:p></p><p class=MsoPlainText style='margin-left:.5in'>Total iterations: 715029<o:p></o:p></p><p class=MsoPlainText style='margin-left:.5in'>Time (CPU seconds): 259.72<o:p></o:p></p><p class=MsoPlainText style='margin-left:.5in'>Time (Wallclock seconds): 259.72<o:p></o:p></p><p class=MsoPlainText style='margin-left:.5in'><o:p> </o:p></p><p class=MsoPlainText style='margin-left:.5in'>Total time (CPU seconds): 260.21 (Wallclock seconds): 260.21<o:p></o:p></p><p class=MsoPlainText><o:p> </o:p></p><p class=MsoPlainText>The objective value reported is reasonable. But when I inspect the solution, I get:<o:p></o:p></p><p class=MsoPlainText><o:p> </o:p></p><p class=MsoPlainText style='margin-left:.5in'>Stopped on iterations - objective value 59421894.99131566<o:p></o:p></p><p class=MsoPlainText style='margin-left:.5in'>** 0 E_worth(29) -59421894.991315655 0<o:p></o:p></p><p class=MsoPlainText><o:p> </o:p></p><p class=MsoPlainText>It appears that the postprocessing is a little aggressive. And that the summary printed doesn’t reflect the postprocessing.<o:p></o:p></p><p class=MsoPlainText><o:p> </o:p></p><p class=MsoPlainText>Is there a way I can tell the “relaxed row infeasibility” to back off and report the summarized result?<o:p></o:p></p><p class=MsoPlainText><o:p> </o:p></p><p class=MsoPlainText>I’ll send models along if this is deemed worthy of investigation.<o:p></o:p></p><p class=MsoPlainText><o:p> </o:p></p><p class=MsoPlainText>Thanks,<o:p></o:p></p><p class=MsoPlainText><o:p> </o:p></p><p class=MsoPlainText>jkh<o:p></o:p></p></div></body></html>