Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:39:30 2012

Optimize a model with 1 rows, 170 columns and 170 nonzeros
Model has 162 quadratic objective terms
Presolve removed 0 rows and 25 columns
Presolve time: 0.00s
Presolved: 163 rows, 307 columns, 631 nonzeros
Variable types: 0 continuous, 307 integer (306 binary)
Found heuristic solution: objective 38.0000000

Root relaxation: objective 0.000000e+00, 205 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   47   38.00000    0.00000   100%     -    0s
     0     0    0.00000    0   41   38.00000    0.00000   100%     -    0s
     0     0    0.00000    0   35   38.00000    0.00000   100%     -    0s
H    0     0                      25.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   38   25.00000    0.00000   100%     -    0s
     0     0    0.00000    0   26   25.00000    0.00000   100%     -    0s
H    0     0                      21.0000000    0.00000   100%     -    0s
     0     2    0.00000    0   26   21.00000    0.00000   100%     -    0s
H   81    63                      20.0000000    0.00000   100%   1.4    0s
H   94    57                      14.0000000    0.00000   100%   2.2    0s
H  135    83                      12.0000000    0.00000   100%   2.5    0s
H  162    98                      11.0000000    0.00000   100%   2.7    0s
H  189   102                       9.0000000    0.00000   100%   3.4    0s
H  465   222                       8.0000000    1.00000  87.5%   8.7    0s
*  519   172              14       7.0000000    1.00000  85.7%  14.6    0s

Cutting planes:
  Cover: 302
  MIR: 2

Explored 708 nodes (21791 simplex iterations) in 0.39 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 7.000000000000e+00, best bound 7.000000000000e+00, gap 0.0%