Gurobi 5.0.1 (linux64) logging started Sun Nov 18 00:14:37 2012

Optimize a model with 125 rows, 298 columns and 298 nonzeros
Model has 248 quadratic constraints
Presolve time: 1.44s
Presolved: 125 rows, 298 columns, 298 nonzeros
Variable types: 248 continuous, 50 integer (50 binary)

Root relaxation: objective 0.000000e+00, 25 iterations, 0.00 seconds

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

H    0     0                      76.0000000          -     -      -    1s
     0     0    0.00000    0   18   76.00000    0.00000   100%     -    1s
     0     0    0.00000    0   31   76.00000    0.00000   100%     -    1s
     0     0    0.00000    0   31   76.00000    0.00000   100%     -    1s
     0     2    0.00000    0   30   76.00000    0.00000   100%     -    1s
H   27    27                      36.0000000    4.62963  87.1%  41.9    1s
*   32    30              23      34.0000000    4.62963  86.4%  36.8    1s
H  154   101                      32.0000000    7.90909  75.3%  29.5    1s
*  181   115              15      31.0000000    8.18519  73.6%  29.9    1s
H  274   114                      30.0000000   10.12121  66.3%  29.5    1s
*  548   139              10      29.0000000   16.55556  42.9%  31.4    1s
* 1215    21               9      28.0000000   26.40000  5.71%  31.0    2s

Cutting planes:
  Gomory: 2

Explored 1239 nodes (38137 simplex iterations) in 2.44 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.800000000000e+01, best bound 2.800000000000e+01, gap 0.0%