Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:10:48 2012

Optimize a model with 1 rows, 46 columns and 46 nonzeros
Model has 57 quadratic objective terms
Presolve removed 0 rows and 1 columns
Presolve time: 0.00s
Presolved: 58 rows, 102 columns, 216 nonzeros
Variable types: 0 continuous, 102 integer (101 binary)
Found heuristic solution: objective 21.0000000

Root relaxation: objective 0.000000e+00, 79 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   19   21.00000    0.00000   100%     -    0s
H    0     0                      16.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   15   16.00000    0.00000   100%     -    0s
H    0     0                      14.0000000    0.00000   100%     -    0s
H    0     0                      12.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   18   12.00000    0.00000   100%     -    0s
     0     0    0.00000    0   18   12.00000    0.00000   100%     -    0s
     0     2    0.00000    0   18   12.00000    0.00000   100%     -    0s
H   28    28                      11.0000000    0.00000   100%   4.8    0s
H   57    38                       9.0000000    0.00000   100%   4.4    0s
*  152    71              11       8.0000000    0.00000   100%   7.9    0s
*  207    62              12       7.0000000    1.00000  85.7%   7.8    0s

Cutting planes:
  Cover: 106

Explored 293 nodes (3926 simplex iterations) in 0.06 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 7.000000000000e+00, best bound 7.000000000000e+00, gap 0.0%