Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:51:14 2012

Optimize a model with 171 rows, 520 columns and 520 nonzeros
Model has 340 quadratic constraints
Presolve removed 0 rows and 24 columns
Presolve time: 1.98s
Presolved: 171 rows, 496 columns, 496 nonzeros
Variable types: 340 continuous, 156 integer (155 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                      82.0000000          -     -      -    1s
     0     0    0.00000    0    3   82.00000    0.00000   100%     -    1s
     0     0    0.00000    0    4   82.00000    0.00000   100%     -    1s
     0     0    0.00000    0   30   82.00000    0.00000   100%     -    2s
     0     2    0.00000    0  108   82.00000    0.00000   100%     -    2s
*   22    18              16       9.0000000    1.13793  87.4%  59.1    2s
*   24    17              17       8.0000000    1.13793  85.8%  57.3    2s
H   36    24                       8.0000000    1.69863  78.8%  49.1    2s
*   36    23              11       7.0000000    1.69863  75.7%  49.4    2s
H   94    40                       7.0000000    2.35294  66.4%  32.0    2s

Cutting planes:

Explored 569 nodes (11381 simplex iterations) in 2.38 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 6.999999998939e+00, best bound 6.999999998939e+00, gap 0.0%