Gurobi 5.0.1 (linux64) logging started Fri Nov 16 01:40:08 2012

Optimize a model with 5771 rows, 870 columns and 18067 nonzeros
Presolve time: 0.06s
Presolved: 5771 rows, 870 columns, 26019 nonzeros
Variable types: 0 continuous, 870 integer (870 binary)
Found heuristic solution: objective 17.0000000

Root relaxation: objective 2.000000e+00, 2226 iterations, 0.11 seconds

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

     0     0    2.00000    0   58   17.00000    2.00000  88.2%     -    0s
H    0     0                       9.0000000    2.00000  77.8%     -    0s
H    0     0                       8.0000000    2.00000  75.0%     -    0s
     0     0    2.00000    0   58    8.00000    2.00000  75.0%     -    0s
     0     0    2.00000    0   58    8.00000    2.00000  75.0%     -    0s
H    0     0                       7.0000000    2.00000  71.4%     -    0s
     0     0    2.00000    0   58    7.00000    2.00000  71.4%     -    0s
     0     0    2.00000    0   58    7.00000    2.00000  71.4%     -    1s
     0     0    2.00000    0   58    7.00000    2.00000  71.4%     -    1s
     0     0    2.00000    0   58    7.00000    2.00000  71.4%     -    1s
     0     2    2.00000    0   58    7.00000    2.00000  71.4%     -    2s
*   15     9               9       6.0000000    3.00000  50.0%  1019    4s
    27     7    5.00000    4   50    6.00000    3.00000  50.0%   696    5s

Cutting planes:
  Clique: 357
  Zero half: 9

Explored 95 nodes (44743 simplex iterations) in 6.99 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 6.000000000000e+00, best bound 6.000000000000e+00, gap 0.0%