Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:43:31 2012

Optimize a model with 901 rows, 61 columns and 1802 nonzeros
Presolve removed 623 rows and 0 columns
Presolve time: 0.01s
Presolved: 278 rows, 61 columns, 1608 nonzeros
Variable types: 0 continuous, 61 integer (61 binary)
Found heuristic solution: objective 7.0000000

Root relaxation: objective 1.073938e+01, 132 iterations, 0.00 seconds

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

     0     0   10.73938    0   56    7.00000   10.73938  53.4%     -    0s
H    0     0                       8.0000000   10.73938  34.2%     -    0s
     0     0   10.49550    0   58    8.00000   10.49550  31.2%     -    0s
     0     0   10.43517    0   59    8.00000   10.43517  30.4%     -    0s
     0     0   10.39805    0   59    8.00000   10.39805  30.0%     -    0s
     0     0   10.36682    0   58    8.00000   10.36682  29.6%     -    0s
     0     0   10.34061    0   61    8.00000   10.34061  29.3%     -    0s
     0     0   10.34050    0   61    8.00000   10.34050  29.3%     -    0s
     0     2   10.33889    0   61    8.00000   10.33889  29.2%     -    0s

Cutting planes:
  Clique: 36
  Zero half: 8

Explored 25 nodes (1157 simplex iterations) in 0.15 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%