Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:43:47 2012

Optimize a model with 1180 rows, 68 columns and 2360 nonzeros
Presolve removed 845 rows and 0 columns
Presolve time: 0.03s
Presolved: 335 rows, 68 columns, 2104 nonzeros
Variable types: 0 continuous, 68 integer (68 binary)
Found heuristic solution: objective 7.0000000

Root relaxation: objective 1.044832e+01, 179 iterations, 0.01 seconds

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

     0     0   10.44832    0   61    7.00000   10.44832  49.3%     -    0s
     0     0   10.23003    0   65    7.00000   10.23003  46.1%     -    0s
     0     0   10.18581    0   64    7.00000   10.18581  45.5%     -    0s
     0     0   10.17218    0   65    7.00000   10.17218  45.3%     -    0s
     0     0   10.16537    0   64    7.00000   10.16537  45.2%     -    0s
     0     0   10.14931    0   65    7.00000   10.14931  45.0%     -    0s
     0     0   10.14648    0   65    7.00000   10.14648  44.9%     -    0s
     0     0   10.14392    0   65    7.00000   10.14392  44.9%     -    0s
     0     0   10.12526    0   65    7.00000   10.12526  44.6%     -    0s
     0     0   10.12302    0   65    7.00000   10.12302  44.6%     -    0s
     0     0   10.12266    0   65    7.00000   10.12266  44.6%     -    0s
     0     2   10.11666    0   65    7.00000   10.11666  44.5%     -    0s
*   54     2               5       8.0000000    8.37500  4.69%  37.1    0s

Cutting planes:
  Clique: 48
  Zero half: 5

Explored 55 nodes (2457 simplex iterations) in 0.36 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%