Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:09:10 2012

Optimize a model with 1 rows, 27 columns and 27 nonzeros
Model has 19 quadratic objective terms
Presolve removed 0 rows and 6 columns
Presolve time: 0.00s
Presolved: 20 rows, 40 columns, 78 nonzeros
Variable types: 0 continuous, 40 integer (39 binary)
Found heuristic solution: objective 4.0000000

Root relaxation: objective 0.000000e+00, 22 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    3    4.00000    0.00000   100%     -    0s
H    0     0                       2.0000000    0.00000   100%     -    0s
     0     0    0.00000    0    5    2.00000    0.00000   100%     -    0s
     0     0    0.00000    0    3    2.00000    0.00000   100%     -    0s
     0     0    0.00000    0    3    2.00000    0.00000   100%     -    0s
     0     0    0.00000    0    3    2.00000    0.00000   100%     -    0s
     0     0    0.00000    0    2    2.00000    0.00000   100%     -    0s
     0     2    0.00000    0    2    2.00000    0.00000   100%     -    0s
*   25     3               4       1.0000000    0.00000   100%   2.1    0s

Cutting planes:
  Cover: 8

Explored 26 nodes (123 simplex iterations) in 0.01 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.000000000000e+00, best bound 1.000000000000e+00, gap 0.0%