Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:40:25 2012

Optimize a model with 1 rows, 40 columns and 40 nonzeros
Model has 56 quadratic objective terms
Presolve time: 0.00s
Presolved: 57 rows, 96 columns, 208 nonzeros
Variable types: 0 continuous, 96 integer (96 binary)
Found heuristic solution: objective 19.0000000

Root relaxation: objective 0.000000e+00, 61 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   24   19.00000    0.00000   100%     -    0s
H    0     0                      18.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   32   18.00000    0.00000   100%     -    0s
     0     0    0.00000    0   14   18.00000    0.00000   100%     -    0s
H    0     0                      14.0000000    0.00000   100%     -    0s
H    0     0                      13.0000000    0.00000   100%     -    0s
     0     2    0.00000    0   13   13.00000    0.00000   100%     -    0s
H    7     7                      12.0000000    0.00000   100%   2.1    0s
H   19    19                      11.0000000    0.00000   100%   1.7    0s
H  121    43                       7.0000000    0.00000   100%   5.4    0s
*  140    36               7       6.0000000    0.00000   100%   6.4    0s

Cutting planes:
  Gomory: 1
  Cover: 106

Explored 180 nodes (1779 simplex iterations) in 0.03 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%