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

Optimize a model with 1367 rows, 75 columns and 2734 nonzeros
Presolve removed 963 rows and 0 columns
Presolve time: 0.03s
Presolved: 404 rows, 75 columns, 2506 nonzeros
Variable types: 0 continuous, 75 integer (75 binary)
Found heuristic solution: objective 6.0000000

Root relaxation: objective 1.145395e+01, 230 iterations, 0.01 seconds

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

     0     0   11.45395    0   70    6.00000   11.45395  90.9%     -    0s
H    0     0                       7.0000000   11.45395  63.6%     -    0s
     0     0   11.24696    0   75    7.00000   11.24696  60.7%     -    0s
     0     0   11.17862    0   74    7.00000   11.17862  59.7%     -    0s
     0     0   11.16371    0   73    7.00000   11.16371  59.5%     -    0s
H    0     0                       8.0000000   11.16371  39.5%     -    0s
     0     0   11.15432    0   74    8.00000   11.15432  39.4%     -    0s
     0     0   11.14971    0   75    8.00000   11.14971  39.4%     -    0s
     0     0   11.14144    0   75    8.00000   11.14144  39.3%     -    0s
     0     0   11.13652    0   75    8.00000   11.13652  39.2%     -    0s
H    0     0                       9.0000000   11.13652  23.7%     -    0s
     0     0   11.13525    0   75    9.00000   11.13525  23.7%     -    0s
     0     0   11.13480    0   75    9.00000   11.13480  23.7%     -    0s
     0     2   11.13357    0   75    9.00000   11.13357  23.7%     -    0s

Cutting planes:
  Clique: 30
  Zero half: 11

Explored 23 nodes (1548 simplex iterations) in 0.41 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 9.000000000000e+00, best bound 9.000000000000e+00, gap 0.0%