Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:44:12 2012

Optimize a model with 1407 rows, 75 columns and 2814 nonzeros
Presolve removed 1001 rows and 0 columns
Presolve time: 0.03s
Presolved: 406 rows, 75 columns, 2531 nonzeros
Variable types: 0 continuous, 75 integer (75 binary)
Found heuristic solution: objective 6.0000000

Root relaxation: objective 1.184883e+01, 249 iterations, 0.01 seconds

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

     0     0   11.84883    0   72    6.00000   11.84883  97.5%     -    0s
H    0     0                       7.0000000   11.84883  69.3%     -    0s
     0     0   11.57915    0   72    7.00000   11.57915  65.4%     -    0s
     0     0   11.44513    0   74    7.00000   11.44513  63.5%     -    0s
     0     0   11.40916    0   74    7.00000   11.40916  63.0%     -    0s
     0     0   11.33940    0   74    7.00000   11.33940  62.0%     -    0s
H    0     0                       8.0000000   11.33940  41.7%     -    0s
     0     0   11.32004    0   73    8.00000   11.32004  41.5%     -    0s
     0     0   11.30230    0   72    8.00000   11.30230  41.3%     -    0s
     0     0   11.28884    0   71    8.00000   11.28884  41.1%     -    0s
     0     0   11.28757    0   72    8.00000   11.28757  41.1%     -    0s
     0     0   11.28715    0   73    8.00000   11.28715  41.1%     -    0s
     0     2   11.28665    0   73    8.00000   11.28665  41.1%     -    0s

Cutting planes:
  Clique: 35
  Zero half: 4

Explored 65 nodes (3363 simplex iterations) in 0.41 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 8.000000000000e+00, best bound 8.000000000000e+00, gap 0.0%