Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:44:47 2012

Optimize a model with 1630 rows, 82 columns and 3260 nonzeros
Presolve removed 1151 rows and 0 columns
Presolve time: 0.04s
Presolved: 479 rows, 82 columns, 3010 nonzeros
Variable types: 0 continuous, 82 integer (82 binary)
Found heuristic solution: objective 7.0000000

Root relaxation: objective 1.243992e+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   12.43992    0   78    7.00000   12.43992  77.7%     -    0s
     0     0   12.14357    0   80    7.00000   12.14357  73.5%     -    0s
H    0     0                       8.0000000   12.14357  51.8%     -    0s
     0     0   12.09250    0   82    8.00000   12.09250  51.2%     -    0s
     0     0   12.05308    0   80    8.00000   12.05308  50.7%     -    0s
     0     0   12.03366    0   81    8.00000   12.03366  50.4%     -    0s
H    0     0                       9.0000000   12.03366  33.7%     -    0s
     0     0   12.02789    0   81    9.00000   12.02789  33.6%     -    0s
     0     0   12.02746    0   80    9.00000   12.02746  33.6%     -    0s
     0     0   12.02533    0   81    9.00000   12.02533  33.6%     -    0s
     0     0   12.02386    0   82    9.00000   12.02386  33.6%     -    0s
     0     0   12.02383    0   82    9.00000   12.02383  33.6%     -    0s
     0     2   12.02364    0   82    9.00000   12.02364  33.6%     -    0s

Cutting planes:
  Clique: 40
  Zero half: 3

Explored 43 nodes (2957 simplex iterations) in 0.59 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%