Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:43:14 2012

Optimize a model with 154 rows, 481 columns and 481 nonzeros
Model has 306 quadratic constraints
Presolve removed 0 rows and 24 columns
Presolve time: 1.79s
Presolved: 154 rows, 457 columns, 457 nonzeros
Variable types: 306 continuous, 151 integer (150 binary)

Root relaxation: objective 0.000000e+00, 55 iterations, 0.00 seconds

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

H    0     0                      64.0000000          -     -      -    1s
     0     0    0.00000    0    3   64.00000    0.00000   100%     -    1s
     0     0    0.00000    0    2   64.00000    0.00000   100%     -    1s
     0     0    0.00000    0   71   64.00000    0.00000   100%     -    1s
     0     2    0.00000    0   71   64.00000    0.00000   100%     -    1s
H   44    44                       9.0000000    0.66102  92.7%  18.5    1s
*   46    39              35       8.0000000    0.66102  91.7%  18.0    1s
*   71    48              21       6.0000000    0.81538  86.4%  15.3    1s
H  143    68                       5.0000000    1.02985  79.4%  11.6    1s
*  272    53               8       4.0000000    1.76744  55.8%  13.3    1s
H  445    46                       4.0000000    3.00000  25.0%  12.6    2s

Cutting planes:

Explored 521 nodes (8184 simplex iterations) in 2.07 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.999999998886e+00, best bound 3.999999998886e+00, gap 0.0%