Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:29:17 2012

Optimize a model with 1 rows, 158 columns and 158 nonzeros
Model has 130 quadratic objective terms
Presolve removed 0 rows and 26 columns
Presolve time: 0.00s
Presolved: 131 rows, 262 columns, 522 nonzeros
Variable types: 0 continuous, 262 integer (261 binary)
Found heuristic solution: objective 35.0000000

Root relaxation: objective 0.000000e+00, 162 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   40   35.00000    0.00000   100%     -    0s
     0     0    0.00000    0   21   35.00000    0.00000   100%     -    0s
H    0     0                      17.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   16   17.00000    0.00000   100%     -    0s
H    0     0                      15.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   24   15.00000    0.00000   100%     -    0s
     0     0    0.00000    0   18   15.00000    0.00000   100%     -    0s
H    0     0                      12.0000000    0.00000   100%     -    0s
H    0     0                      10.0000000    0.00000   100%     -    0s
     0     2    0.00000    0   18   10.00000    0.00000   100%     -    0s
H   54    43                       9.0000000    0.00000   100%   3.1    0s
H  112    89                       8.0000000    0.00000   100%   3.2    0s
H  129    40                       4.0000000    0.00000   100%   3.4    0s
H  135    35                       3.0000000    0.00000   100%   3.3    0s
H  216    25                       2.0000000    0.00000   100%   3.1    0s

Cutting planes:
  Cover: 240

Explored 428 nodes (6074 simplex iterations) in 0.12 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%