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

Optimize a model with 1 rows, 42 columns and 42 nonzeros
Model has 45 quadratic objective terms
Presolve removed 0 rows and 4 columns
Presolve time: 0.00s
Presolved: 46 rows, 83 columns, 173 nonzeros
Variable types: 0 continuous, 83 integer (82 binary)
Found heuristic solution: objective 11.0000000

Root relaxation: objective 0.000000e+00, 51 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   12   11.00000    0.00000   100%     -    0s
     0     0    0.00000    0    9   11.00000    0.00000   100%     -    0s
H    0     0                       8.0000000    0.00000   100%     -    0s
     0     0    0.00000    0    8    8.00000    0.00000   100%     -    0s
     0     0    0.00000    0   13    8.00000    0.00000   100%     -    0s
     0     0    0.00000    0   13    8.00000    0.00000   100%     -    0s
H    0     0                       7.0000000    0.00000   100%     -    0s
     0     2    0.00000    0    7    7.00000    0.00000   100%     -    0s
H  109    49                       6.0000000    0.00000   100%   4.4    0s
*  112    43              13       5.0000000    0.00000   100%   4.3    0s
H  116    31                       4.0000000    0.00000   100%   4.6    0s

Cutting planes:
  Cover: 84

Explored 157 nodes (1486 simplex iterations) in 0.03 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.000000000000e+00, best bound 4.000000000000e+00, gap 0.0%