Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:43:29 2012

Optimize a model with 862 rows, 60 columns and 1724 nonzeros
Presolve removed 590 rows and 0 columns
Presolve time: 0.01s
Presolved: 272 rows, 60 columns, 1584 nonzeros
Variable types: 0 continuous, 60 integer (60 binary)
Found heuristic solution: objective 6.0000000

Root relaxation: objective 1.088885e+01, 143 iterations, 0.00 seconds

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

     0     0   10.88885    0   55    6.00000   10.88885  81.5%     -    0s
H    0     0                       7.0000000   10.88885  55.6%     -    0s
     0     0   10.54752    0   57    7.00000   10.54752  50.7%     -    0s
H    0     0                       8.0000000   10.54752  31.8%     -    0s
     0     0   10.49796    0   58    8.00000   10.49796  31.2%     -    0s
     0     0   10.45743    0   58    8.00000   10.45743  30.7%     -    0s
     0     0   10.41302    0   58    8.00000   10.41302  30.2%     -    0s
     0     0   10.40934    0   58    8.00000   10.40934  30.1%     -    0s
     0     0   10.40742    0   58    8.00000   10.40742  30.1%     -    0s
     0     0   10.40507    0   55    8.00000   10.40507  30.1%     -    0s
     0     0   10.39682    0   58    8.00000   10.39682  30.0%     -    0s
     0     0   10.39539    0   58    8.00000   10.39539  29.9%     -    0s
     0     0   10.39326    0   59    8.00000   10.39326  29.9%     -    0s
     0     2   10.39199    0   59    8.00000   10.39199  29.9%     -    0s

Cutting planes:
  Clique: 26
  Zero half: 8

Explored 23 nodes (1192 simplex iterations) in 0.18 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%