Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:33:57 2012

Optimize a model with 1 rows, 161 columns and 161 nonzeros
Model has 129 quadratic objective terms
Presolve removed 0 rows and 32 columns
Presolve time: 0.00s
Presolved: 130 rows, 258 columns, 516 nonzeros
Variable types: 0 continuous, 258 integer (257 binary)
Found heuristic solution: objective 33.0000000

Root relaxation: objective 0.000000e+00, 157 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   36   33.00000    0.00000   100%     -    0s
     0     0    0.00000    0   19   33.00000    0.00000   100%     -    0s
H    0     0                      16.0000000    0.00000   100%     -    0s
H    0     0                      15.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   20   15.00000    0.00000   100%     -    0s
     0     0    0.00000    0   18   15.00000    0.00000   100%     -    0s
H    0     0                       9.0000000    0.00000   100%     -    0s
H    0     0                       8.0000000    0.00000   100%     -    0s
     0     2    0.00000    0   18    8.00000    0.00000   100%     -    0s
H   54    35                       7.0000000    0.00000   100%   3.3    0s
H   81    39                       6.0000000    0.00000   100%   3.2    0s
H   87    25                       4.0000000    0.00000   100%   3.4    0s
*   98    20              14       3.0000000    0.00000   100%   3.2    0s
H  358    36                       2.0000000    0.00000   100%   7.2    0s

Cutting planes:
  Cover: 219

Explored 426 nodes (5370 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%