Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:50:45 2012

Optimize a model with 171 rows, 519 columns and 519 nonzeros
Model has 340 quadratic constraints
Presolve removed 0 rows and 19 columns
Presolve time: 1.98s
Presolved: 171 rows, 500 columns, 500 nonzeros
Variable types: 340 continuous, 160 integer (159 binary)

Root relaxation: objective 0.000000e+00, 61 iterations, 0.00 seconds

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

H    0     0                      79.0000000          -     -      -    1s
     0     0    0.00000    0   66   79.00000    0.00000   100%     -    2s
     0     0    0.00000    0  107   79.00000    0.00000   100%     -    2s
     0     0    0.00000    0   93   79.00000    0.00000   100%     -    2s
     0     2    0.00000    0   63   79.00000    0.00000   100%     -    2s
H   24    22                       9.0000000    1.76336  80.4%  47.4    2s
*   25    17              18       8.0000000    1.76336  78.0%  50.3    2s
H  108    66                       8.0000000    2.03846  74.5%  20.1    2s
*  176    69              10       7.0000000    2.41600  65.5%  16.7    2s
H  433   118                       7.0000000    4.06818  41.9%  14.6    2s
*  599    61               7       6.0000000    4.77000  20.5%  14.4    2s

Cutting planes:

Explored 722 nodes (11992 simplex iterations) in 2.48 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 6.000000000000e+00, best bound 6.000000000000e+00, gap 0.0%