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

Optimize a model with 1435 rows, 75 columns and 2870 nonzeros
Presolve removed 1048 rows and 0 columns
Presolve time: 0.04s
Presolved: 387 rows, 75 columns, 2533 nonzeros
Variable types: 0 continuous, 75 integer (75 binary)
Found heuristic solution: objective 7.0000000

Root relaxation: objective 1.112753e+01, 228 iterations, 0.01 seconds

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

     0     0   11.12753    0   72    7.00000   11.12753  59.0%     -    0s
H    0     0                       8.0000000   11.12753  39.1%     -    0s
     0     0   10.85353    0   72    8.00000   10.85353  35.7%     -    0s
     0     0   10.77719    0   73    8.00000   10.77719  34.7%     -    0s
     0     0   10.70734    0   71    8.00000   10.70734  33.8%     -    0s
     0     0   10.68229    0   71    8.00000   10.68229  33.5%     -    0s
     0     0   10.66826    0   73    8.00000   10.66826  33.4%     -    0s
     0     0   10.66303    0   75    8.00000   10.66303  33.3%     -    0s
     0     0   10.66205    0   75    8.00000   10.66205  33.3%     -    0s
     0     0   10.66200    0   75    8.00000   10.66200  33.3%     -    0s
     0     2   10.66166    0   75    8.00000   10.66166  33.3%     -    0s

Cutting planes:
  Gomory: 1
  Clique: 32
  Zero half: 6

Explored 36 nodes (2580 simplex iterations) in 0.36 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%