Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:44:02 2012

Optimize a model with 1315 rows, 73 columns and 2630 nonzeros
Presolve removed 919 rows and 0 columns
Presolve time: 0.03s
Presolved: 396 rows, 73 columns, 2477 nonzeros
Variable types: 0 continuous, 73 integer (73 binary)
Found heuristic solution: objective 6.0000000

Root relaxation: objective 1.151550e+01, 204 iterations, 0.01 seconds

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

     0     0   11.51550    0   65    6.00000   11.51550  91.9%     -    0s
H    0     0                       8.0000000   11.51550  43.9%     -    0s
     0     0   11.11615    0   70    8.00000   11.11615  39.0%     -    0s
H    0     0                       9.0000000   11.11615  23.5%     -    0s
     0     0   11.04852    0   72    9.00000   11.04852  22.8%     -    0s
     0     0   11.02435    0   72    9.00000   11.02435  22.5%     -    0s
     0     0   11.00758    0   71    9.00000   11.00758  22.3%     -    0s
     0     0   10.98368    0   72    9.00000   10.98368  22.0%     -    0s
     0     0   10.97699    0   71    9.00000   10.97699  22.0%     -    0s
     0     0   10.97414    0   70    9.00000   10.97414  21.9%     -    0s
     0     0   10.95928    0   69    9.00000   10.95928  21.8%     -    0s
     0     0   10.95404    0   69    9.00000   10.95404  21.7%     -    0s
     0     0   10.94983    0   71    9.00000   10.94983  21.7%     -    0s
     0     0   10.94982    0   71    9.00000   10.94982  21.7%     -    0s
     0     2   10.94932    0   71    9.00000   10.94932  21.7%     -    0s

Cutting planes:
  Clique: 34
  Zero half: 3

Explored 15 nodes (1104 simplex iterations) in 0.40 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%