Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:12:52 2012

Optimize a model with 86 rows, 226 columns and 226 nonzeros
Model has 170 quadratic constraints
Presolve time: 0.99s
Presolved: 86 rows, 226 columns, 226 nonzeros
Variable types: 170 continuous, 56 integer (56 binary)

Root relaxation: objective 0.000000e+00, 28 iterations, 0.00 seconds

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

H    0     0                      39.0000000          -     -      -    0s
     0     0    0.00000    0   43   39.00000    0.00000   100%     -    1s
     0     0    0.00000    0   44   39.00000    0.00000   100%     -    1s
     0     0    0.00000    0   43   39.00000    0.00000   100%     -    1s
     0     2    0.00000    0   42   39.00000    0.00000   100%     -    1s
*   28    28              19      15.0000000    3.80786  74.6%  26.6    1s
H   54    38                      14.0000000    3.92381  72.0%  19.2    1s
*   57    33              16      12.0000000    3.92381  67.3%  19.3    1s

Cutting planes:
  Gomory: 1

Explored 368 nodes (7108 simplex iterations) in 1.16 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.200000000000e+01, best bound 1.200000000000e+01, gap 0.0%