Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:10:51 2012

Optimize a model with 221 rows, 647 columns and 647 nonzeros
Model has 440 quadratic constraints
Presolve removed 0 rows and 26 columns
Presolve time: 2.57s
Presolved: 221 rows, 621 columns, 621 nonzeros
Variable types: 440 continuous, 181 integer (180 binary)

Root relaxation: objective 0.000000e+00, 77 iterations, 0.00 seconds

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

H    0     0                     107.0000000          -     -      -    2s
     0     0    0.00000    0  126  107.00000    0.00000   100%     -    2s
     0     0    0.05074    0  166  107.00000    0.05074   100%     -    2s
     0     2    0.06484    0  166  107.00000    0.06484   100%     -    2s
H   27    27                      59.0000000    1.52500  97.4%  33.9    2s
H   36    36                      17.0000000    1.52500  91.0%  33.5    2s
*   49    47              29      16.0000000    1.52500  90.5%  28.3    2s
*  462   109              17      15.0000000    8.22642  45.2%  25.6    3s

Cutting planes:
  Gomory: 1

Explored 1024 nodes (26324 simplex iterations) in 3.58 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%