Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:11:38 2012

Optimize a model with 1 rows, 51 columns and 51 nonzeros
Model has 75 quadratic objective terms
Presolve removed 0 rows and 1 columns
Presolve time: 0.00s
Presolved: 76 rows, 125 columns, 275 nonzeros
Variable types: 0 continuous, 125 integer (124 binary)
Found heuristic solution: objective 30.0000000

Root relaxation: objective 0.000000e+00, 92 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   27   30.00000    0.00000   100%     -    0s
H    0     0                      26.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   32   26.00000    0.00000   100%     -    0s
     0     0    0.00000    0   24   26.00000    0.00000   100%     -    0s
H    0     0                      20.0000000    0.00000   100%     -    0s
H    0     0                      17.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   25   17.00000    0.00000   100%     -    0s
     0     0    0.00000    0   23   17.00000    0.00000   100%     -    0s
     0     2    0.00000    0   18   17.00000    0.00000   100%     -    0s
H   17    17                      12.0000000    0.00000   100%   2.6    0s
H  248   122                      11.0000000    1.00000  90.9%   8.6    0s
*  285   108               9      10.0000000    2.64706  73.5%  11.4    0s

Cutting planes:
  Cover: 144
  MIR: 1
  Zero half: 2

Explored 416 nodes (7989 simplex iterations) in 0.12 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.000000000000e+01, best bound 1.000000000000e+01, gap 0.0%