Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:44:23 2012

Optimize a model with 1485 rows, 78 columns and 2970 nonzeros
Presolve removed 1061 rows and 0 columns
Presolve time: 0.03s
Presolved: 424 rows, 78 columns, 2624 nonzeros
Variable types: 0 continuous, 78 integer (78 binary)
Found heuristic solution: objective 7.0000000

Root relaxation: objective 1.249826e+01, 275 iterations, 0.01 seconds

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

     0     0   12.49826    0   72    7.00000   12.49826  78.5%     -    0s
H    0     0                       8.0000000   12.49826  56.2%     -    0s
     0     0   12.26903    0   75    8.00000   12.26903  53.4%     -    0s
     0     0   12.17661    0   74    8.00000   12.17661  52.2%     -    0s
     0     0   12.15575    0   75    8.00000   12.15575  51.9%     -    0s
H    0     0                       9.0000000   12.15575  35.1%     -    0s
     0     0   12.11762    0   77    9.00000   12.11762  34.6%     -    0s
     0     0   12.10664    0   78    9.00000   12.10664  34.5%     -    0s
     0     0   12.09946    0   78    9.00000   12.09946  34.4%     -    0s
     0     0   12.09766    0   78    9.00000   12.09766  34.4%     -    0s
     0     0   12.09624    0   78    9.00000   12.09624  34.4%     -    0s
     0     2   12.09426    0   78    9.00000   12.09426  34.4%     -    0s

Cutting planes:
  Gomory: 1
  Clique: 44
  Zero half: 7

Explored 35 nodes (2520 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%