Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:44:13 2012

Optimize a model with 1433 rows, 75 columns and 2866 nonzeros
Presolve removed 1025 rows and 0 columns
Presolve time: 0.03s
Presolved: 408 rows, 75 columns, 2651 nonzeros
Variable types: 0 continuous, 75 integer (75 binary)
Found heuristic solution: objective 6.0000000

Root relaxation: objective 1.153005e+01, 294 iterations, 0.01 seconds

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

     0     0   11.53005    0   69    6.00000   11.53005  92.2%     -    0s
H    0     0                       7.0000000   11.53005  64.7%     -    0s
     0     0   11.13715    0   73    7.00000   11.13715  59.1%     -    0s
     0     0   11.09608    0   72    7.00000   11.09608  58.5%     -    0s
     0     0   11.03267    0   73    7.00000   11.03267  57.6%     -    0s
     0     0   11.01133    0   74    7.00000   11.01133  57.3%     -    0s
     0     0   11.00239    0   74    7.00000   11.00239  57.2%     -    0s
     0     0   10.99207    0   74    7.00000   10.99207  57.0%     -    0s
H    0     0                       8.0000000   10.99207  37.4%     -    0s
     0     0   10.99191    0   74    8.00000   10.99191  37.4%     -    0s
     0     2   10.99179    0   74    8.00000   10.99179  37.4%     -    0s

Cutting planes:
  Clique: 38
  Zero half: 2

Explored 52 nodes (2819 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%