Gurobi 5.0.1 (linux64) logging started Fri Nov 16 01:09:43 2012

Optimize a model with 3336 rows, 600 columns and 10512 nonzeros
Presolve removed 794 rows and 0 columns
Presolve time: 0.05s
Presolved: 2542 rows, 600 columns, 14702 nonzeros
Variable types: 0 continuous, 600 integer (600 binary)
Found heuristic solution: objective 18.0000000

Root relaxation: objective 6.000000e+00, 1954 iterations, 0.20 seconds

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

     0     0    6.00000    0   14   18.00000    6.00000  66.7%     -    0s
H    0     0                       8.0000000    6.00000  25.0%     -    0s
H    0     0                       7.0000000    6.00000  14.3%     -    0s
     0     0    6.00000    0   46    7.00000    6.00000  14.3%     -    0s
     0     0    6.00000    0   14    7.00000    6.00000  14.3%     -    0s
     0     0    6.00000    0   12    7.00000    6.00000  14.3%     -    0s
     0     0    6.00000    0   20    7.00000    6.00000  14.3%     -    1s
     0     0    6.00000    0   21    7.00000    6.00000  14.3%     -    1s
     0     0    6.00000    0   32    7.00000    6.00000  14.3%     -    1s
     0     0    6.00000    0   20    7.00000    6.00000  14.3%     -    1s
     0     0    6.00000    0   21    7.00000    6.00000  14.3%     -    1s
     0     0    6.00000    0   20    7.00000    6.00000  14.3%     -    1s
     0     2    6.00000    0   19    7.00000    6.00000  14.3%     -    1s
    46     8    6.00000   19   46    7.00000    6.00000  14.3%   369    5s

Cutting planes:
  Gomory: 1
  Clique: 2
  Zero half: 3

Explored 96 nodes (35308 simplex iterations) in 5.57 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%