Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:32:10 2012

Optimize a model with 260 rows, 735 columns and 735 nonzeros
Model has 518 quadratic constraints
Presolve removed 0 rows and 17 columns
Presolve time: 3.02s
Presolved: 260 rows, 718 columns, 718 nonzeros
Variable types: 518 continuous, 200 integer (199 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                     133.0000000          -     -      -    3s
     0     0    0.00000    0   95  133.00000    0.00000   100%     -    3s
     0     0    0.00000    0  138  133.00000    0.00000   100%     -    3s
     0     0    0.00000    0  124  133.00000    0.00000   100%     -    3s
     0     2    0.00000    0  124  133.00000    0.00000   100%     -    3s
*   49    38              35      24.0000000    1.98058  91.7%  31.4    3s
*  251    94              26      21.0000000    3.27869  84.4%  20.8    3s
   607   272    9.00606   15  716   21.00000    9.00606  57.1%  27.0    5s
*  788   300              54      20.0000000    9.00606  55.0%  35.4    5s
* 1092   286              45      19.0000000    9.20213  51.6%  34.6    6s
* 2123   236              41      18.0000000   13.45679  25.2%  31.0    8s
  2696   137     cutoff   38        18.00000   15.00000  16.7%  29.8   10s

Explored 2991 nodes (91057 simplex iterations) in 11.73 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.800000000000e+01, best bound 1.800000000000e+01, gap 0.0%