Gurobi 5.0.1 (linux64) logging started Mon Feb  4 19:07:16 2013

Optimize a model with 70375 rows, 5625 columns and 213750 nonzeros
Presolve removed 5247 rows and 2851 columns
Presolve time: 0.56s
Presolved: 65128 rows, 2774 columns, 197756 nonzeros
Variable types: 33 continuous, 2741 integer (2741 binary)
Found heuristic solution: objective 113911.00000

Root relaxation: objective 8.881830e+04, 32482 iterations, 4.23 seconds
Total elapsed time = 5.05s

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

     0     0 88818.3041    0   12 113911.000 88818.3041  22.0%     -    5s
H    0     0                    88830.000000 88818.3041  0.01%     -    5s
H    0     0                    88825.000000 88818.3041  0.01%     -    5s

Explored 0 nodes (32528 simplex iterations) in 5.17 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 8.882500000000e+04, best bound 8.881900000000e+04, gap 0.0068%