Gurobi 5.0.1 (linux64) logging started Mon Feb  4 18:53:27 2013

Optimize a model with 14234 rows, 1936 columns and 43560 nonzeros
Presolve removed 2459 rows and 1013 columns
Presolve time: 0.09s
Presolved: 11775 rows, 923 columns, 35940 nonzeros
Variable types: 15 continuous, 908 integer (908 binary)
Found heuristic solution: objective 47929.000000

Root relaxation: objective 3.986488e+04, 2981 iterations, 0.12 seconds

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

     0     0 39864.8846    0    5 47929.0000 39864.8846  16.8%     -    0s
H    0     0                    39877.000000 39864.8846  0.03%     -    0s
H    0     0                    39871.000000 39864.8846  0.02%     -    0s
     0     0 39866.4693    0    5 39871.0000 39866.4693  0.01%     -    0s
     0     0 39866.4693    0    4 39871.0000 39866.4693  0.01%     -    0s
     0     0 39866.4693    0    6 39871.0000 39866.4693  0.01%     -    0s
H    0     0                    39869.000000 39866.4693  0.01%     -    0s

Cutting planes:
  Cover: 1
  MIR: 3

Explored 0 nodes (3128 simplex iterations) in 0.37 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.986900000000e+04, best bound 3.986700000000e+04, gap 0.0050%