Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:10:25 2012

Optimize a model with 1 rows, 43 columns and 43 nonzeros
Model has 46 quadratic objective terms
Presolve removed 0 rows and 1 columns
Presolve time: 0.00s
Presolved: 47 rows, 88 columns, 180 nonzeros
Variable types: 0 continuous, 88 integer (87 binary)
Found heuristic solution: objective 17.0000000

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   19   17.00000    0.00000   100%     -    0s
     0     0    0.00000    0   11   17.00000    0.00000   100%     -    0s
H    0     0                      11.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   18   11.00000    0.00000   100%     -    0s
     0     0    0.00000    0    8   11.00000    0.00000   100%     -    0s
H    0     0                       8.0000000    0.00000   100%     -    0s
H    0     0                       7.0000000    0.00000   100%     -    0s
     0     2    0.00000    0    8    7.00000    0.00000   100%     -    0s
H   38    19                       5.0000000    0.00000   100%   2.3    0s
H   98    35                       4.0000000    0.00000   100%   3.7    0s

Cutting planes:
  Cover: 87

Explored 196 nodes (1955 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%