Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:40:51 2012

Optimize a model with 1 rows, 41 columns and 41 nonzeros
Model has 60 quadratic objective terms
Presolve removed 0 rows and 1 columns
Presolve time: 0.00s
Presolved: 61 rows, 100 columns, 220 nonzeros
Variable types: 0 continuous, 100 integer (99 binary)
Found heuristic solution: objective 27.0000000

Root relaxation: objective 0.000000e+00, 67 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   22   27.00000    0.00000   100%     -    0s
H    0     0                      20.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   23   20.00000    0.00000   100%     -    0s
H    0     0                      17.0000000    0.00000   100%     -    0s
H    0     0                      15.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   11   15.00000    0.00000   100%     -    0s
H    0     0                      10.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   14   10.00000    0.00000   100%     -    0s
     0     0    0.00000    0   14   10.00000    0.00000   100%     -    0s
     0     2    0.00000    0   10   10.00000    0.00000   100%     -    0s
*   21    21              13       6.0000000    0.00000   100%   1.5    0s

Cutting planes:
  Gomory: 2
  Cover: 99

Explored 143 nodes (2314 simplex iterations) in 0.04 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%