Gurobi 5.0.1 (linux64) logging started Mon Feb  4 19:03:45 2013

Optimize a model with 57225 rows, 4900 columns and 173950 nonzeros
Presolve removed 3186 rows and 2459 columns
Presolve time: 0.44s
Presolved: 54039 rows, 2441 columns, 164595 nonzeros
Variable types: 37 continuous, 2404 integer (2404 binary)
Found heuristic solution: objective 107933.00000

Root relaxation: objective 7.406900e+04, 22212 iterations, 2.06 seconds

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

     0     0 74069.0000    0   24 107933.000 74069.0000  31.4%     -    2s
H    0     0                    74096.000000 74069.0000  0.04%     -    2s
H    0     0                    74076.000000 74069.0000  0.01%     -    2s

Explored 0 nodes (22392 simplex iterations) in 2.83 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 7.407600000000e+04, best bound 7.406900000000e+04, gap 0.0094%