Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:47:08 2012

Optimize a model with 90 rows, 224 columns and 224 nonzeros
Model has 178 quadratic constraints
Presolve time: 1.04s
Presolved: 90 rows, 224 columns, 224 nonzeros
Variable types: 178 continuous, 46 integer (46 binary)

Root relaxation: objective 0.000000e+00, 23 iterations, 0.00 seconds

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

H    0     0                      53.0000000          -     -      -    1s
     0     0    0.00000    0   24   53.00000    0.00000   100%     -    1s
     0     0    0.00000    0   39   53.00000    0.00000   100%     -    1s
     0     0    0.00000    0   36   53.00000    0.00000   100%     -    1s
     0     2    0.00000    0   36   53.00000    0.00000   100%     -    1s
*   29    29              16      20.0000000    4.00000  80.0%  22.1    1s
*   39    26              20      19.0000000    4.00000  78.9%  17.8    1s
*   67    43              17      18.0000000    4.20000  76.7%  19.8    1s
*   86    42              11      16.0000000    4.83333  69.8%  19.1    1s
*  304    66              12      15.0000000    7.63067  49.1%  20.5    1s

Cutting planes:
  Gomory: 1

Explored 615 nodes (12113 simplex iterations) in 1.30 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.500000000000e+01, best bound 1.500000000000e+01, gap 0.0%