Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:09:35 2012

Optimize a model with 1 rows, 34 columns and 34 nonzeros
Model has 35 quadratic objective terms
Presolve removed 0 rows and 1 columns
Presolve time: 0.00s
Presolved: 36 rows, 68 columns, 138 nonzeros
Variable types: 0 continuous, 68 integer (67 binary)
Found heuristic solution: objective 12.0000000

Root relaxation: objective 0.000000e+00, 50 iterations, 0.00 seconds

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

     0     0    0.00000    0   12   12.00000    0.00000   100%     -    0s
H    0     0                       9.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   10    9.00000    0.00000   100%     -    0s
     0     0    0.00000    0   25    9.00000    0.00000   100%     -    0s
     0     0    0.00000    0    9    9.00000    0.00000   100%     -    0s
H    0     0                       7.0000000    0.00000   100%     -    0s
     0     2    0.00000    0    9    7.00000    0.00000   100%     -    0s
H   39    22                       6.0000000    0.00000   100%   2.7    0s
*   92    38              12       5.0000000    1.00000  80.0%   5.0    0s
*  101    26               6       4.0000000    1.00000  75.0%   5.3    0s
H  115     9                       3.0000000    1.00000  66.7%   7.0    0s

Cutting planes:
  Cover: 67

Explored 126 nodes (1092 simplex iterations) in 0.02 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.000000000000e+00, best bound 3.000000000000e+00, gap 0.0%