Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:38:40 2012

Optimize a model with 1 rows, 31 columns and 31 nonzeros
Model has 47 quadratic objective terms
Presolve removed 0 rows and 1 columns
Presolve time: 0.00s
Presolved: 48 rows, 77 columns, 171 nonzeros
Variable types: 0 continuous, 77 integer (76 binary)
Found heuristic solution: objective 19.0000000

Root relaxation: objective 0.000000e+00, 65 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   16   19.00000    0.00000   100%     -    0s
H    0     0                      14.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   16   14.00000    0.00000   100%     -    0s
H    0     0                      12.0000000    0.00000   100%     -    0s
     0     0    0.00000    0   13   12.00000    0.00000   100%     -    0s
     0     0    0.00000    0   20   12.00000    0.00000   100%     -    0s
H    0     0                      10.0000000    0.00000   100%     -    0s
     0     2    0.00000    0   20   10.00000    0.00000   100%     -    0s
H   98    39                       8.0000000    0.00000   100%   5.7    0s
H  105    28                       7.0000000    0.00000   100%   6.1    0s

Cutting planes:
  Gomory: 2
  Cover: 82

Explored 144 nodes (1388 simplex iterations) in 0.03 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%