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Hi,<br>
<br>
I am attaching a sample output below:<br>
<p><small><br>
Cbc0013I At root node, 1 cuts changed objective from -37772.749
to -37772.688 in 2 passes<br>
Cbc0014I Cut generator 0 (Couenne convexifier cuts) - 1 row cuts
average 2.0 elements, 320 column cuts (321 active)<br>
Cbc0010I After 0 nodes, 0 on tree, 1e+50 best solution, best
possible -37772.688 (777.18 seconds)<br>
Cbc0010I After 100 nodes, 44 on tree, 1e+50 best solution, best
possible -37739.148 (819.40 seconds)<br>
Cbc0010I After 200 nodes, 93 on tree, 1e+50 best solution, best
possible -37724.941 (835.35 seconds)<br>
Cbc0020I Exiting on maximum time<br>
Cbc0005I Partial search - best objective 1e+50 (best possible
-37724.941), took 23515 iterations and 255 nodes (838.10
seconds)<br>
Cbc0035I Maximum depth 80, 0 variables fixed on reduced cost<br>
"Not finished"<br>
Stats: /tmp/at2730.nl 233 [var] 0 [int] 592 [con] 823
[aux] 1595 [root] 1595 [tot] 0.008999 [sep] 838.775
[time] 838.782 [bb] -3.772494e+04 [lower]
-3.562291e+04 [upper] 255 [nodes]<br>
<br>
couenne: Optimization interupted on limit.</small><br>
</p>
<p>In the "Stats" line, a finite upper bound is being reported.
However, just before exiting on maximum time, the "best solution"
is +Inf. <br>
The reported lower bounds are consistent in the two lines.<br>
</p>
<p>What is going on here ?<br>
</p>
<pre class="moz-signature" cols="72">--
Regards,
Akshay
--
Akshay Gupte
Ph.D. student, Operations Research
School of Industrial & Systems Engineering
Georgia Institute of Technology
Email: <a class="moz-txt-link-abbreviated" href="mailto:akshayg@gatech.edu">akshayg@gatech.edu</a></pre>
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