Gurobi 5.0.1 (linux64) logging started Mon Feb  4 19:00:34 2013

Optimize a model with 45825 rows, 4225 columns and 139425 nonzeros
Presolve removed 9328 rows and 2254 columns
Presolve time: 0.34s
Presolved: 36497 rows, 1971 columns, 110541 nonzeros
Variable types: 17 continuous, 1954 integer (1954 binary)
Found heuristic solution: objective 94590.000000

Root relaxation: objective 8.385287e+04, 6246 iterations, 0.49 seconds

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

     0     0 83852.8708    0    9 94590.0000 83852.8708  11.4%     -    0s
H    0     0                    83878.000000 83852.8708  0.03%     -    0s
H    0     0                    83864.000000 83852.8708  0.01%     -    1s
     0     0 83854.5237    0   14 83864.0000 83854.5237  0.01%     -    1s
     0     0 83854.5237    0    7 83864.0000 83854.5237  0.01%     -    1s
H    0     0                    83862.000000 83854.5237  0.01%     -    1s

Explored 0 nodes (6333 simplex iterations) in 1.29 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 8.386200000000e+04, best bound 8.385500000000e+04, gap 0.0083%