Gurobi 5.0.1 (linux64) logging started Mon Feb  4 18:59:36 2013

Optimize a model with 41727 rows, 3969 columns and 127008 nonzeros
Presolve removed 3663 rows and 2017 columns
Presolve time: 0.36s
Presolved: 38064 rows, 1952 columns, 115870 nonzeros
Variable types: 28 continuous, 1924 integer (1924 binary)
Found heuristic solution: objective 101616.00000

Root relaxation: objective 8.010557e+04, 15098 iterations, 1.02 seconds

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

     0     0 80105.5722    0   12 101616.000 80105.5722  21.2%     -    1s
H    0     0                    80143.000000 80105.5722  0.05%     -    1s
H    0     0                    80126.000000 80105.5722  0.03%     -    1s
     0     0 80106.7234    0   22 80126.0000 80106.7234  0.02%     -    1s
     0     0 80106.7234    0   12 80126.0000 80106.7234  0.02%     -    2s
H    0     0                    80122.000000 80106.7234  0.02%     -    2s
     0     0 80106.7350    0   27 80122.0000 80106.7350  0.02%     -    2s
H    0     0                    80115.000000 80106.7350  0.01%     -    2s
     0     1 80106.8513    0   27 80115.0000 80106.8513  0.01%     -    2s

Cutting planes:
  Gomory: 12
  MIR: 17
  Zero half: 3

Explored 5 nodes (17516 simplex iterations) in 2.26 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 8.011500000000e+04, best bound 8.010800000000e+04, gap 0.0087%