Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:48:34 2012

Optimize a model with 2522 rows, 101 columns and 5044 nonzeros
Presolve removed 1812 rows and 0 columns
Presolve time: 0.07s
Presolved: 710 rows, 101 columns, 4748 nonzeros
Variable types: 0 continuous, 101 integer (101 binary)
Found heuristic solution: objective 6.0000000

Root relaxation: objective 1.402689e+01, 340 iterations, 0.01 seconds

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

     0     0   14.02689    0   97    6.00000   14.02689   134%     -    0s
H    0     0                       7.0000000   14.02689   100%     -    0s
     0     0   13.78932    0   99    7.00000   13.78932  97.0%     -    0s
H    0     0                       8.0000000   13.78932  72.4%     -    0s
     0     0   13.70492    0  100    8.00000   13.70492  71.3%     -    0s
     0     0   13.67021    0  100    8.00000   13.67021  70.9%     -    0s
     0     0   13.65588    0  101    8.00000   13.65588  70.7%     -    0s
     0     0   13.65321    0  100    8.00000   13.65321  70.7%     -    0s
     0     0   13.65281    0  100    8.00000   13.65281  70.7%     -    0s
     0     0   13.65274    0  101    8.00000   13.65274  70.7%     -    0s
     0     2   13.65252    0  101    8.00000   13.65252  70.7%     -    1s
H  137    59                       9.0000000   12.83903  42.7%  54.6    1s

Cutting planes:
  Clique: 59
  Zero half: 2

Explored 237 nodes (12975 simplex iterations) in 1.84 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%