Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:46:49 2012

Optimize a model with 2235 rows, 94 columns and 4470 nonzeros
Presolve removed 1567 rows and 0 columns
Presolve time: 0.06s
Presolved: 668 rows, 94 columns, 4568 nonzeros
Variable types: 0 continuous, 94 integer (94 binary)
Found heuristic solution: objective 6.0000000

Root relaxation: objective 1.302463e+01, 394 iterations, 0.02 seconds

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

     0     0   13.02463    0   91    6.00000   13.02463   117%     -    0s
H    0     0                       7.0000000   13.02463  86.1%     -    0s
H    0     0                       8.0000000   13.02463  62.8%     -    0s
     0     0   12.84931    0   94    8.00000   12.84931  60.6%     -    0s
     0     0   12.79743    0   94    8.00000   12.79743  60.0%     -    0s
     0     0   12.77903    0   92    8.00000   12.77903  59.7%     -    0s
     0     0   12.76202    0   93    8.00000   12.76202  59.5%     -    0s
     0     0   12.75722    0   94    8.00000   12.75722  59.5%     -    0s
     0     0   12.75551    0   94    8.00000   12.75551  59.4%     -    0s
H    0     0                       9.0000000   12.75551  41.7%     -    0s
     0     0   12.75551    0   94    9.00000   12.75551  41.7%     -    0s
     0     2   12.75433    0   94    9.00000   12.75433  41.7%     -    0s

Cutting planes:
  Gomory: 2
  Clique: 28
  Zero half: 8

Explored 76 nodes (5900 simplex iterations) in 1.22 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%