Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:54:22 2012

Optimize a model with 115 rows, 249 columns and 249 nonzeros
Model has 228 quadratic constraints
Presolve time: 1.33s
Presolved: 115 rows, 249 columns, 249 nonzeros
Variable types: 228 continuous, 21 integer (21 binary)

Root relaxation: objective 0.000000e+00, 10 iterations, 0.00 seconds

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

H    0     0                      65.0000000          -     -      -    1s
     0     0    0.00000    0   20   65.00000    0.00000   100%     -    1s
     0     0    0.52381    0   21   65.00000    0.52381  99.2%     -    1s
     0     2    0.53216    0   21   65.00000    0.53216  99.2%     -    1s
*   25    25              15      55.0000000    6.55556  88.1%  32.4    1s
*   26    24              15      53.0000000    6.55556  87.6%  31.9    1s
*   30    24              15      52.0000000    6.55556  87.4%  29.7    1s
*   56    39              16      51.0000000    6.55556  87.1%  24.3    1s
*   58    37              16      50.0000000    6.55556  86.9%  23.6    1s
H  118    80                      49.0000000   11.87302  75.8%  25.0    1s
*  504   198              12      48.0000000   28.07143  41.5%  23.0    1s
* 1235   321              45      47.0000000   28.83333  38.7%  23.7    2s
* 2756   324              42      46.0000000   39.27273  14.6%  18.1    3s

Explored 3392 nodes (57064 simplex iterations) in 3.74 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.600000000000e+01, best bound 4.600000000000e+01, gap 0.0%