Gurobi 5.0.1 (linux64) logging started Tue Nov 20 12:32:13 2012

Optimize a model with 299 rows, 108 columns and 598 nonzeros
Presolve removed 107 rows and 19 columns
Presolve time: 0.00s
Presolved: 192 rows, 89 columns, 410 nonzeros
Variable types: 0 continuous, 89 integer (89 binary)
Found heuristic solution: objective 43.0000000

Root relaxation: objective 4.850000e+01, 108 iterations, 0.00 seconds

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

     0     0   48.50000    0   63   43.00000   48.50000  12.8%     -    0s
H    0     0                      44.0000000   48.50000  10.2%     -    0s
     0     0   47.30588    0   88   44.00000   47.30588  7.51%     -    0s
     0     0   47.00000    0   70   44.00000   47.00000  6.82%     -    0s
     0     0   46.89189    0   76   44.00000   46.89189  6.57%     -    0s
     0     0   46.66071    0   82   44.00000   46.66071  6.05%     -    0s
     0     0   46.34483    0   87   44.00000   46.34483  5.33%     -    0s
     0     0   46.25446    0   87   44.00000   46.25446  5.12%     -    0s
     0     0   46.23519    0   88   44.00000   46.23519  5.08%     -    0s
     0     0   46.23519    0   85   44.00000   46.23519  5.08%     -    0s
     0     2   46.22921    0   85   44.00000   46.22921  5.07%     -    0s

Cutting planes:
  Gomory: 1
  Zero half: 40

Explored 28 nodes (856 simplex iterations) in 0.05 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.400000000000e+01, best bound 4.400000000000e+01, gap 0.0%