Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:49:37 2012

Optimize a model with 175 rows, 525 columns and 525 nonzeros
Model has 348 quadratic constraints
Presolve removed 0 rows and 28 columns
Presolve time: 2.03s
Presolved: 175 rows, 497 columns, 497 nonzeros
Variable types: 348 continuous, 149 integer (148 binary)

Root relaxation: objective 0.000000e+00, 63 iterations, 0.00 seconds

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

H    0     0                      71.0000000          -     -      -    2s
     0     0    0.00000    0    2   71.00000    0.00000   100%     -    2s
     0     0    0.00000    0    2   71.00000    0.00000   100%     -    2s
     0     0    0.00000    0    4   71.00000    0.00000   100%     -    2s
     0     2    0.00000    0   75   71.00000    0.00000   100%     -    2s
H   38    38                      17.0000000    0.46667  97.3%  34.6    2s
*   45    43              31      12.0000000    0.46667  96.1%  37.9    2s
*  105    73              20      11.0000000    1.00000  90.9%  24.8    2s
H  137    44                       8.0000000    3.09312  61.3%  23.2    2s

Cutting planes:

Explored 286 nodes (7031 simplex iterations) in 2.31 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 7.999999998971e+00, best bound 7.999999998971e+00, gap 0.0%