Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:44:48 2012

Optimize a model with 1638 rows, 82 columns and 3276 nonzeros
Presolve removed 1164 rows and 0 columns
Presolve time: 0.04s
Presolved: 474 rows, 82 columns, 3038 nonzeros
Variable types: 0 continuous, 82 integer (82 binary)
Found heuristic solution: objective 7.0000000

Root relaxation: objective 1.230383e+01, 303 iterations, 0.01 seconds

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

     0     0   12.30383    0   75    7.00000   12.30383  75.8%     -    0s
H    0     0                       8.0000000   12.30383  53.8%     -    0s
     0     0   11.85506    0   79    8.00000   11.85506  48.2%     -    0s
H    0     0                       9.0000000   11.85506  31.7%     -    0s
     0     0   11.81422    0   79    9.00000   11.81422  31.3%     -    0s
     0     0   11.79181    0   81    9.00000   11.79181  31.0%     -    0s
     0     0   11.78416    0   81    9.00000   11.78416  30.9%     -    0s
     0     0   11.77734    0   80    9.00000   11.77734  30.9%     -    0s
     0     0   11.77671    0   81    9.00000   11.77671  30.9%     -    0s
     0     0   11.77668    0   81    9.00000   11.77668  30.9%     -    0s
     0     2   11.77614    0   81    9.00000   11.77614  30.8%     -    0s

Cutting planes:
  Clique: 35
  Zero half: 4

Explored 33 nodes (2520 simplex iterations) in 0.45 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%