Gurobi 5.0.1 (linux64) logging started Mon Feb  4 16:10:23 2013

Optimize a model with 813 rows, 8932 columns and 487936 nonzeros
Presolve removed 55 rows and 59 columns
Presolve time: 0.73s
Presolved: 758 rows, 8873 columns, 479845 nonzeros
Variable types: 0 continuous, 8873 integer (8873 binary)
Found heuristic solution: objective 5234.0000000

Root relaxation: objective 4.033000e+03, 1658 iterations, 0.29 seconds

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

*    0     0               0    4033.0000000 4033.00000   0.0%     -    1s

Explored 0 nodes (1658 simplex iterations) in 1.09 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.033000000000e+03, best bound 4.033000000000e+03, gap 0.0%