Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:26:53 2012

Optimize a model with 1 rows, 151 columns and 151 nonzeros
Model has 122 quadratic objective terms
Presolve removed 0 rows and 33 columns
Presolve time: 0.00s
Presolved: 123 rows, 240 columns, 484 nonzeros
Variable types: 0 continuous, 240 integer (239 binary)
Found heuristic solution: objective 31.0000000

Root relaxation: objective 0.000000e+00, 147 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   31.00000    0.00000   100%     -    0s
H    0     0                      19.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   16   19.00000    0.00000   100%     -    0s
H    0     0                      15.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   26   15.00000    0.00000   100%     -    0s
H    0     0                      10.0000000    0.00000   100%     -    0s
     0     0    0.00000    0    8   10.00000    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
H    0     0                       6.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   10    6.00000    0.00000   100%     -    0s
     0     0    0.00000    0   10    6.00000    0.00000   100%     -    0s
     0     2    0.00000    0   10    6.00000    0.00000   100%     -    0s
H   27    16                       5.0000000    0.00000   100%   1.2    0s
H  297    60                       3.0000000    0.00000   100%   4.8    0s
H  374    41                       2.0000000    0.00000   100%   7.5    0s

Cutting planes:
  Cover: 206

Explored 420 nodes (4943 simplex iterations) in 0.11 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.000000000000e+00, best bound 2.000000000000e+00, gap 0.0%