Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:11:24 2012

Optimize a model with 71 rows, 189 columns and 189 nonzeros
Model has 140 quadratic constraints
Presolve removed 0 rows and 1 columns
Presolve time: 0.82s
Presolved: 71 rows, 188 columns, 188 nonzeros
Variable types: 140 continuous, 48 integer (47 binary)

Root relaxation: objective 0.000000e+00, 24 iterations, 0.00 seconds

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

H    0     0                      31.0000000          -     -      -    0s
     0     0    0.00000    0   13   31.00000    0.00000   100%     -    0s
     0     0    0.00000    0   38   31.00000    0.00000   100%     -    0s
     0     0    0.00000    0   38   31.00000    0.00000   100%     -    0s
     0     2    0.00000    0   38   31.00000    0.00000   100%     -    0s
*   23    21              15       9.0000000    3.70076  58.9%  22.6    0s

Cutting planes:

Explored 115 nodes (2262 simplex iterations) in 0.88 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 9.000000000000e+00, best bound 9.000000000000e+00, gap 0.0%