Gurobi 5.0.1 (linux64) logging started Mon Feb  4 19:08:42 2013

Optimize a model with 73226 rows, 5776 columns and 222376 nonzeros
Presolve removed 4332 rows and 2906 columns
Presolve time: 0.60s
Presolved: 68894 rows, 2870 columns, 209598 nonzeros
Variable types: 40 continuous, 2830 integer (2830 binary)
Found heuristic solution: objective 114430.00000

Root relaxation: objective 7.870455e+04, 28597 iterations, 3.13 seconds

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

     0     0 78704.5455    0   11 114430.000 78704.5455  31.2%     -    4s
H    0     0                    78710.000000 78704.5455  0.01%     -    4s

Explored 0 nodes (28834 simplex iterations) in 4.15 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 7.871000000000e+04, best bound 7.870500000000e+04, gap 0.0064%