Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:11:49 2012

Optimize a model with 1 rows, 52 columns and 52 nonzeros
Model has 68 quadratic objective terms
Presolve removed 0 rows and 2 columns
Presolve time: 0.00s
Presolved: 69 rows, 118 columns, 254 nonzeros
Variable types: 0 continuous, 118 integer (117 binary)
Found heuristic solution: objective 19.0000000

Root relaxation: objective 0.000000e+00, 87 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   20   19.00000    0.00000   100%     -    0s
     0     0    0.00000    0   22   19.00000    0.00000   100%     -    0s
H    0     0                      17.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   16   17.00000    0.00000   100%     -    0s
H    0     0                      13.0000000    0.00000   100%     -    0s
H    0     0                      12.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   14   12.00000    0.00000   100%     -    0s
     0     0    0.00000    0   10   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   23    9.00000    0.00000   100%     -    0s
     0     0    0.00000    0   21    9.00000    0.00000   100%     -    0s
     0     2    0.00000    0   16    9.00000    0.00000   100%     -    0s
H  188    47                       6.0000000    0.00000   100%   7.6    0s

Cutting planes:
  Cover: 123
  Zero half: 3

Explored 250 nodes (4617 simplex iterations) in 0.08 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 6.000000000000e+00, best bound 6.000000000000e+00, gap 0.0%