Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:44:56 2012

Optimize a model with 1694 rows, 83 columns and 3388 nonzeros
Presolve removed 1204 rows and 0 columns
Presolve time: 0.04s
Presolved: 490 rows, 83 columns, 3114 nonzeros
Variable types: 0 continuous, 83 integer (83 binary)
Found heuristic solution: objective 7.0000000

Root relaxation: objective 1.230923e+01, 271 iterations, 0.01 seconds

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

     0     0   12.30923    0   80    7.00000   12.30923  75.8%     -    0s
H    0     0                       8.0000000   12.30923  53.9%     -    0s
H    0     0                       9.0000000   12.30923  36.8%     -    0s
     0     0   12.11943    0   82    9.00000   12.11943  34.7%     -    0s
     0     0   12.03953    0   83    9.00000   12.03953  33.8%     -    0s
     0     0   12.01197    0   83    9.00000   12.01197  33.5%     -    0s
     0     0   11.97845    0   83    9.00000   11.97845  33.1%     -    0s
     0     0   11.97535    0   83    9.00000   11.97535  33.1%     -    0s
     0     0   11.96503    0   83    9.00000   11.96503  32.9%     -    0s
     0     0   11.95698    0   83    9.00000   11.95698  32.9%     -    0s
     0     0   11.95674    0   83    9.00000   11.95674  32.9%     -    0s
     0     2   11.95642    0   83    9.00000   11.95642  32.8%     -    0s

Cutting planes:
  Clique: 24
  Zero half: 8

Explored 33 nodes (2744 simplex iterations) in 0.60 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%