Gurobi 5.0.1 (linux64) logging started Mon Feb  4 16:20:21 2013

Optimize a model with 1113 rows, 19862 columns and 1004633 nonzeros
Presolve removed 55 rows and 246 columns
Presolve time: 4.77s
Presolved: 1058 rows, 19616 columns, 993678 nonzeros
Variable types: 0 continuous, 19616 integer (19616 binary)
Found heuristic solution: objective 10474.000000

Root relaxation: objective 7.944000e+03, 4344 iterations, 1.61 seconds

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

*    0     0               0    7944.0000000 7944.00000   0.0%     -    6s

Explored 0 nodes (4344 simplex iterations) in 6.62 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 7.944000000000e+03, best bound 7.944000000000e+03, gap 0.0%