Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:20:57 2012

Optimize a model with 236 rows, 683 columns and 683 nonzeros
Model has 470 quadratic constraints
Presolve removed 0 rows and 22 columns
Presolve time: 2.74s
Presolved: 236 rows, 661 columns, 661 nonzeros
Variable types: 470 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                     117.0000000          -     -      -    2s
     0     0    0.00000    0    2  117.00000    0.00000   100%     -    2s
     0     0    0.00000    0  118  117.00000    0.00000   100%     -    2s
     0     0    0.00000    0   96  117.00000    0.00000   100%     -    2s
     0     2    0.00000    0   96  117.00000    0.00000   100%     -    2s
H   51    51                      24.0000000    1.63415  93.2%  31.4    2s
*   52    49              36      22.0000000    1.63415  92.6%  31.1    2s
H  126    76                      19.0000000    2.69231  85.8%  22.0    3s
*  264   110              17      17.0000000    5.00000  70.6%  20.9    3s
*  634   222              30      16.0000000    8.65517  45.9%  28.0    4s
   765   233   12.97872   22  509   16.00000    8.65517  45.9%  36.1    5s
* 1374   228              41      15.0000000    8.86905  40.9%  43.8    6s
  2398   190   13.98773   27  368   15.00000   11.96774  20.2%  49.1   10s

Explored 2840 nodes (137587 simplex iterations) in 13.23 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%