Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:35:58 2012

Optimize a model with 256 rows, 728 columns and 728 nonzeros
Model has 510 quadratic constraints
Presolve removed 0 rows and 14 columns
Presolve time: 2.98s
Presolved: 256 rows, 714 columns, 714 nonzeros
Variable types: 510 continuous, 204 integer (203 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                     145.0000000          -     -      -    2s
     0     0    0.00000    0   86  145.00000    0.00000   100%     -    3s
     0     0    0.00000    0    2  145.00000    0.00000   100%     -    3s
     0     0    0.00000    0  161  145.00000    0.00000   100%     -    3s
     0     2    0.00000    0  160  145.00000    0.00000   100%     -    3s
H   54    48                      25.0000000    3.49329  86.0%  35.0    3s
*   86    49              58      24.0000000    3.49329  85.4%  29.3    3s
*  231    97              25      20.0000000    4.31694  78.4%  25.7    3s
H  275   114                      19.0000000    4.37500  77.0%  24.9    3s
H  398   124                      18.0000000    7.27273  59.6%  24.3    3s
   607   158    9.18421   13  690   18.00000    9.18421  49.0%  29.7    5s
*  817   200              53      17.0000000    9.18421  46.0%  42.5    6s

Explored 1474 nodes (60638 simplex iterations) in 7.70 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.700000000000e+01, best bound 1.700000000000e+01, gap 0.0%