Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:43:13 2012

Optimize a model with 401 rows, 40 columns and 802 nonzeros
Presolve removed 279 rows and 0 columns
Presolve time: 0.00s
Presolved: 122 rows, 40 columns, 641 nonzeros
Variable types: 0 continuous, 40 integer (40 binary)
Found heuristic solution: objective 5.0000000

Root relaxation: objective 8.166667e+00, 66 iterations, 0.00 seconds

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

     0     0    8.16667    0   27    5.00000    8.16667  63.3%     -    0s
H    0     0                       6.0000000    8.16667  36.1%     -    0s
     0     0    7.55895    0   38    6.00000    7.55895  26.0%     -    0s
     0     0    7.50820    0   36    6.00000    7.50820  25.1%     -    0s
     0     0    7.50000    0   17    6.00000    7.50000  25.0%     -    0s
H    0     0                       7.0000000    7.50000  7.14%     -    0s

Cutting planes:
  Gomory: 1
  Clique: 10
  Zero half: 3

Explored 0 nodes (175 simplex iterations) in 0.02 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%