Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:41:11 2012

Optimize a model with 93 rows, 225 columns and 225 nonzeros
Model has 184 quadratic constraints
Presolve time: 1.07s
Presolved: 93 rows, 225 columns, 225 nonzeros
Variable types: 184 continuous, 41 integer (41 binary)

Root relaxation: objective 0.000000e+00, 20 iterations, 0.00 seconds

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

H    0     0                      48.0000000          -     -      -    1s
     0     0    0.00000    0   14   48.00000    0.00000   100%     -    1s
     0     0    0.00000    0   23   48.00000    0.00000   100%     -    1s
     0     0    0.00000    0   22   48.00000    0.00000   100%     -    1s
     0     2    0.00000    0   22   48.00000    0.00000   100%     -    1s
*   28    28              21      31.0000000    3.68421  88.1%  19.4    1s
*   36    31              23      30.0000000    3.68421  87.7%  17.6    1s
H   54    40                      27.0000000    3.69565  86.3%  17.3    1s
*   56    42              16      24.0000000    3.69565  84.6%  17.3    1s
H  108    68                      23.0000000    5.63636  75.5%  18.1    1s
*  109    65              13      22.0000000    5.63636  74.4%  18.0    1s
*  134    69              13      21.0000000    8.07692  61.5%  18.2    1s
*  375    89              11      20.0000000   13.50000  32.5%  19.1    1s

Cutting planes:
  Gomory: 1

Explored 771 nodes (13346 simplex iterations) in 1.40 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.000000000000e+01, best bound 2.000000000000e+01, gap 0.0%