Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:20:43 2012

Optimize a model with 122 rows, 307 columns and 307 nonzeros
Model has 242 quadratic constraints
Presolve time: 1.41s
Presolved: 122 rows, 307 columns, 307 nonzeros
Variable types: 242 continuous, 65 integer (65 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                      54.0000000          -     -      -    1s
     0     0    0.00000    0   49   54.00000    0.00000   100%     -    1s
     0     0    0.30749    0   62   54.00000    0.30749  99.4%     -    1s
     0     2    0.33094    0   62   54.00000    0.33094  99.4%     -    1s
*   28    28              16      24.0000000    2.82951  88.2%  33.2    1s
*   29    25              17      23.0000000    2.82951  87.7%  32.2    1s
H  121    80                      22.0000000    6.33833  71.2%  27.6    1s
*  122    76              15      21.0000000    6.33833  69.8%  27.4    1s
*  284   102               9      20.0000000    8.27500  58.6%  23.5    1s
*  337    91              10      19.0000000    9.42321  50.4%  23.7    1s
*  499    69              12      18.0000000   11.78313  34.5%  23.9    1s

Cutting planes:
  Gomory: 2

Explored 743 nodes (17713 simplex iterations) in 1.92 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%