Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:11:16 2012

Optimize a model with 85 rows, 217 columns and 217 nonzeros
Model has 168 quadratic constraints
Presolve removed 0 rows and 1 columns
Presolve time: 0.98s
Presolved: 85 rows, 216 columns, 216 nonzeros
Variable types: 168 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                      38.0000000          -     -      -    0s
     0     0    0.00000    0    4   38.00000    0.00000   100%     -    0s
     0     0    0.00000    0   43   38.00000    0.00000   100%     -    0s
     0     0    0.00000    0   28   38.00000    0.00000   100%     -    0s
     0     2    0.00000    0   25   38.00000    0.00000   100%     -    1s
H   16    16                      28.0000000    2.44444  91.3%  37.5    1s
*   26    24              17      15.0000000    2.44444  83.7%  26.0    1s
*  104    39               7      13.0000000    3.46154  73.4%  22.5    1s

Cutting planes:

Explored 254 nodes (6049 simplex iterations) in 1.12 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.300000000000e+01, best bound 1.300000000000e+01, gap 0.0%