Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:20:18 2012

Optimize a model with 107 rows, 276 columns and 276 nonzeros
Model has 212 quadratic constraints
Presolve time: 1.24s
Presolved: 107 rows, 276 columns, 276 nonzeros
Variable types: 212 continuous, 64 integer (64 binary)

Root relaxation: objective 0.000000e+00, 32 iterations, 0.00 seconds

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

H    0     0                      61.0000000          -     -      -    1s
     0     0    0.00000    0   30   61.00000    0.00000   100%     -    1s
     0     0    0.00000    0   39   61.00000    0.00000   100%     -    1s
     0     0    0.00000    0   35   61.00000    0.00000   100%     -    1s
     0     2    0.00000    0   35   61.00000    0.00000   100%     -    1s
H   27    27                      22.0000000    2.27273  89.7%  26.1    1s
*   29    25              22      20.0000000    2.27273  88.6%  25.5    1s
*   95    53              13      17.0000000    5.36364  68.4%  21.6    1s
*  215    68              13      16.0000000    9.00000  43.8%  19.5    1s
*  353    58              11      15.0000000   11.25000  25.0%  18.6    1s

Cutting planes:
  Gomory: 4

Explored 581 nodes (10160 simplex iterations) in 1.51 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%