Gurobi 5.0.1 (linux64) logging started Mon Feb  4 19:04:23 2013

Optimize a model with 59711 rows, 5041 columns and 181476 nonzeros
Presolve removed 9346 rows and 2635 columns
Presolve time: 0.50s
Presolved: 50365 rows, 2406 columns, 152989 nonzeros
Variable types: 28 continuous, 2378 integer (2378 binary)
Found heuristic solution: objective 95437.000000

Root relaxation: objective 7.802589e+04, 13280 iterations, 1.34 seconds

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

     0     0 78025.8889    0    8 95437.0000 78025.8889  18.2%     -    2s
H    0     0                    78037.000000 78025.8889  0.01%     -    2s
H    0     0                    78036.000000 78025.8889  0.01%     -    2s
     0     0 78026.4043    0   21 78036.0000 78026.4043  0.01%     -    2s
     0     0 78026.4043    0    7 78036.0000 78026.4043  0.01%     -    2s
H    0     0                    78033.000000 78026.4043  0.01%     -    2s

Explored 0 nodes (14164 simplex iterations) in 2.50 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 7.803300000000e+04, best bound 7.802700000000e+04, gap 0.0077%