Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:51:08 2012

Optimize a model with 163 rows, 504 columns and 504 nonzeros
Model has 324 quadratic constraints
Presolve removed 0 rows and 23 columns
Presolve time: 1.89s
Presolved: 163 rows, 481 columns, 481 nonzeros
Variable types: 324 continuous, 157 integer (156 binary)

Root relaxation: objective 0.000000e+00, 59 iterations, 0.00 seconds

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

H    0     0                      75.0000000          -     -      -    1s
     0     0    0.00000    0   70   75.00000    0.00000   100%     -    1s
     0     0    0.00000    0   60   75.00000    0.00000   100%     -    1s
     0     0    0.00000    0   38   75.00000    0.00000   100%     -    1s
     0     2    0.00000    0  107   75.00000    0.00000   100%     -    2s
*   20    16              14       4.0000000    0.90323  77.4%  47.0    2s
H   76    25                       4.0000000    2.00000  50.0%  18.1    2s

Cutting planes:

Explored 168 nodes (4185 simplex iterations) in 2.10 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.999999998803e+00, best bound 3.999999998803e+00, gap 0.0%