Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:43:55 2012

Optimize a model with 1256 rows, 71 columns and 2512 nonzeros
Presolve removed 870 rows and 0 columns
Presolve time: 0.03s
Presolved: 386 rows, 71 columns, 2414 nonzeros
Variable types: 0 continuous, 71 integer (71 binary)
Found heuristic solution: objective 7.0000000

Root relaxation: objective 1.163559e+01, 201 iterations, 0.00 seconds

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

     0     0   11.63559    0   62    7.00000   11.63559  66.2%     -    0s
H    0     0                       9.0000000   11.63559  29.3%     -    0s
     0     0   11.20672    0   69    9.00000   11.20672  24.5%     -    0s
     0     0   11.13527    0   69    9.00000   11.13527  23.7%     -    0s
     0     0   11.09672    0   67    9.00000   11.09672  23.3%     -    0s
     0     0   11.08200    0   67    9.00000   11.08200  23.1%     -    0s
     0     0   11.05564    0   67    9.00000   11.05564  22.8%     -    0s
     0     0   11.05419    0   67    9.00000   11.05419  22.8%     -    0s
     0     2   11.05262    0   67    9.00000   11.05262  22.8%     -    0s

Cutting planes:
  Clique: 34
  Zero half: 2

Explored 13 nodes (1021 simplex iterations) in 0.24 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%