Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:12:02 2012

Optimize a model with 1 rows, 53 columns and 53 nonzeros
Model has 71 quadratic objective terms
Presolve removed 0 rows and 1 columns
Presolve time: 0.00s
Presolved: 72 rows, 123 columns, 265 nonzeros
Variable types: 0 continuous, 123 integer (122 binary)
Found heuristic solution: objective 26.0000000

Root relaxation: objective 0.000000e+00, 103 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   18   26.00000    0.00000   100%     -    0s
H    0     0                      18.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   30   18.00000    0.00000   100%     -    0s
     0     0    0.00000    0   15   18.00000    0.00000   100%     -    0s
H    0     0                      12.0000000    0.00000   100%     -    0s
H    0     0                      10.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   19   10.00000    0.00000   100%     -    0s
     0     0    0.00000    0   18   10.00000    0.00000   100%     -    0s
H    0     0                       8.0000000    0.00000   100%     -    0s
     0     2    0.00000    0   15    8.00000    0.00000   100%     -    0s
*  210    58              12       7.0000000    1.00000  85.7%   8.4    0s

Cutting planes:
  Cover: 135
  MIR: 4

Explored 298 nodes (4984 simplex iterations) in 0.08 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%