Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:19:35 2012

Optimize a model with 111 rows, 282 columns and 282 nonzeros
Model has 220 quadratic constraints
Presolve time: 1.28s
Presolved: 111 rows, 282 columns, 282 nonzeros
Variable types: 220 continuous, 62 integer (62 binary)

Root relaxation: objective 0.000000e+00, 31 iterations, 0.00 seconds

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

H    0     0                      50.0000000          -     -      -    1s
     0     0    0.00000    0   41   50.00000    0.00000   100%     -    1s
     0     0    0.23770    0   61   50.00000    0.23770   100%     -    1s
     0     2    0.25870    0   61   50.00000    0.25870  99.5%     -    1s
*   39    39              24      24.0000000    2.26163  90.6%  27.2    1s
*   40    38              24      23.0000000    2.26163  90.2%  26.6    1s
*   74    58              23      22.0000000    2.31250  89.5%  24.2    1s
*  198   129              12      21.0000000    4.00000  81.0%  27.2    1s
*  260   121              15      20.0000000    5.00000  75.0%  25.2    1s
*  270   120              12      19.0000000    5.13725  73.0%  25.2    1s
*  544   122              11      18.0000000    9.62500  46.5%  24.7    1s

Cutting planes:
  Gomory: 1

Explored 1301 nodes (30297 simplex iterations) in 1.99 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.800000000000e+01, best bound 1.800000000000e+01, gap 0.0%