Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:45:05 2012

Optimize a model with 110 rows, 263 columns and 263 nonzeros
Model has 218 quadratic constraints
Presolve time: 1.27s
Presolved: 110 rows, 263 columns, 263 nonzeros
Variable types: 218 continuous, 45 integer (45 binary)

Root relaxation: objective 0.000000e+00, 22 iterations, 0.00 seconds

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

H    0     0                      60.0000000          -     -      -    1s
     0     0    0.00000    0   30   60.00000    0.00000   100%     -    1s
     0     0    0.17857    0   40   60.00000    0.17857   100%     -    1s
     0     0    0.17857    0   40   60.00000    0.17857   100%     -    1s
     0     2    0.17857    0   40   60.00000    0.17857   100%     -    1s
*   32    32              22      31.0000000    3.28571  89.4%  25.7    1s
*   35    31              23      30.0000000    3.28571  89.0%  24.5    1s
*   69    55              20      29.0000000    4.88889  83.1%  22.4    1s
*  117    78              16      25.0000000    5.62500  77.5%  23.9    1s
H  385   102                      24.0000000   13.92308  42.0%  24.7    1s
*  423    99              12      23.0000000   14.17105  38.4%  24.2    1s
*  470    85               9      22.0000000   15.00000  31.8%  24.3    1s

Cutting planes:
  Gomory: 1

Explored 691 nodes (17204 simplex iterations) in 1.72 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.200000000000e+01, best bound 2.200000000000e+01, gap 0.0%