Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:45:10 2012

Optimize a model with 1782 rows, 85 columns and 3564 nonzeros
Presolve removed 1229 rows and 0 columns
Presolve time: 0.04s
Presolved: 553 rows, 85 columns, 3484 nonzeros
Variable types: 0 continuous, 85 integer (85 binary)
Found heuristic solution: objective 6.0000000

Root relaxation: objective 1.268042e+01, 346 iterations, 0.01 seconds

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

     0     0   12.68042    0   83    6.00000   12.68042   111%     -    0s
H    0     0                       7.0000000   12.68042  81.1%     -    0s
H    0     0                       9.0000000   12.68042  40.9%     -    0s
     0     0   12.52951    0   84    9.00000   12.52951  39.2%     -    0s
     0     0   12.44416    0   84    9.00000   12.44416  38.3%     -    0s
     0     0   12.40688    0   84    9.00000   12.40688  37.9%     -    0s
     0     0   12.40315    0   84    9.00000   12.40315  37.8%     -    0s
     0     0   12.40302    0   84    9.00000   12.40302  37.8%     -    0s
     0     0   12.39915    0   84    9.00000   12.39915  37.8%     -    0s
     0     0   12.39786    0   84    9.00000   12.39786  37.8%     -    0s
     0     0   12.39618    0   84    9.00000   12.39618  37.7%     -    0s
     0     2   12.39485    0   84    9.00000   12.39485  37.7%     -    0s

Cutting planes:
  Clique: 27
  Zero half: 11

Explored 57 nodes (3769 simplex iterations) in 0.76 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%