Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:43:44 2012

Optimize a model with 1130 rows, 67 columns and 2260 nonzeros
Presolve removed 796 rows and 0 columns
Presolve time: 0.02s
Presolved: 334 rows, 67 columns, 2079 nonzeros
Variable types: 0 continuous, 67 integer (67 binary)
Found heuristic solution: objective 5.0000000

Root relaxation: objective 1.057246e+01, 170 iterations, 0.00 seconds

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

     0     0   10.57246    0   62    5.00000   10.57246   111%     -    0s
H    0     0                       6.0000000   10.57246  76.2%     -    0s
H    0     0                       7.0000000   10.57246  51.0%     -    0s
     0     0   10.22939    0   65    7.00000   10.22939  46.1%     -    0s
     0     0   10.14539    0   66    7.00000   10.14539  44.9%     -    0s
     0     0   10.11226    0   66    7.00000   10.11226  44.5%     -    0s
H    0     0                       8.0000000   10.11226  26.4%     -    0s
     0     0   10.07801    0   67    8.00000   10.07801  26.0%     -    0s
     0     0   10.06715    0   67    8.00000   10.06715  25.8%     -    0s
     0     0   10.06295    0   67    8.00000   10.06295  25.8%     -    0s
     0     2   10.06291    0   67    8.00000   10.06291  25.8%     -    0s

Cutting planes:
  Gomory: 1
  Clique: 32
  Zero half: 8

Explored 17 nodes (1324 simplex iterations) in 0.20 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 8.000000000000e+00, best bound 8.000000000000e+00, gap 0.0%