Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:51:51 2012

Optimize a model with 106 rows, 257 columns and 257 nonzeros
Model has 210 quadratic constraints
Presolve time: 1.22s
Presolved: 106 rows, 257 columns, 257 nonzeros
Variable types: 210 continuous, 47 integer (47 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                      57.0000000          -     -      -    1s
     0     0    0.00000    0   46   57.00000    0.00000   100%     -    1s
     0     0    0.54783    0   46   57.00000    0.54783  99.0%     -    1s
     0     2    0.55000    0   46   57.00000    0.55000  99.0%     -    1s
*   28    28              15      26.0000000    1.53333  94.1%  26.4    1s
H   41    39                      25.0000000    1.53333  93.9%  21.4    1s
*   42    38              26      24.0000000    1.53333  93.6%  21.0    1s
*  180    91              13      23.0000000    6.00000  73.9%  22.6    1s
H  815   106                      22.0000000   15.33333  30.3%  22.5    1s

Cutting planes:
  Gomory: 1

Explored 1207 nodes (25648 simplex iterations) in 1.84 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.200000000027e+01, best bound 2.200000000027e+01, gap 0.0%