Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:23:45 2012

Optimize a model with 240 rows, 693 columns and 693 nonzeros
Model has 478 quadratic constraints
Presolve removed 0 rows and 24 columns
Presolve time: 2.79s
Presolved: 240 rows, 669 columns, 669 nonzeros
Variable types: 478 continuous, 191 integer (190 binary)

Root relaxation: objective 0.000000e+00, 83 iterations, 0.00 seconds

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

H    0     0                     111.0000000          -     -      -    2s
     0     0    0.00000    0    2  111.00000    0.00000   100%     -    2s
     0     0    0.00000    0   74  111.00000    0.00000   100%     -    2s
     0     0    0.00000    0   63  111.00000    0.00000   100%     -    2s
     0     2    0.00000    0  137  111.00000    0.00000   100%     -    2s
H   39    39                      22.0000000    1.84848  91.6%  43.2    2s
*   53    45              35      19.0000000    1.84848  90.3%  36.2    3s
*  162   112              26      18.0000000    2.11111  88.3%  28.1    3s
*  203   111              22      17.0000000    2.70833  84.1%  27.8    3s
*  248   113              14      16.0000000    2.86441  82.1%  30.2    3s
   606   194    7.00000   16  409   16.00000    7.00000  56.2%  30.1    5s
* 1137   200              51      15.0000000    8.84375  41.0%  37.4    6s

Explored 1746 nodes (60179 simplex iterations) in 7.78 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.500000000000e+01, best bound 1.500000000000e+01, gap 0.0%