Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:34:36 2012

Optimize a model with 141 rows, 442 columns and 442 nonzeros
Model has 280 quadratic constraints
Presolve removed 0 rows and 31 columns
Presolve time: 1.63s
Presolved: 141 rows, 411 columns, 411 nonzeros
Variable types: 280 continuous, 131 integer (130 binary)

Root relaxation: objective 0.000000e+00, 51 iterations, 0.00 seconds

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

H    0     0                      63.0000000          -     -      -    1s
     0     0    0.00000    0   18   63.00000    0.00000   100%     -    1s
     0     0    0.00000    0   14   63.00000    0.00000   100%     -    1s
     0     0    0.00000    0   86   63.00000    0.00000   100%     -    1s
     0     2    0.00000    0   86   63.00000    0.00000   100%     -    1s
H   27    23                       7.0000000    1.15789  83.5%  35.1    1s
*   59    31              42       6.0000000    1.15789  80.7%  20.4    1s
H   68    34                       6.0000000    1.19643  80.1%  22.3    1s
*   68    16               9       5.0000000    1.19643  76.1%  22.3    1s
H  166     8                       4.0000000    2.64286  33.9%  17.7    1s

Cutting planes:

Explored 243 nodes (5158 simplex iterations) in 1.80 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.000000000000e+00, best bound 4.000000000000e+00, gap 0.0%