Gurobi 5.0.1 (linux64) logging started Mon Feb  4 16:13:45 2013

Optimize a model with 992 rows, 13921 columns and 771607 nonzeros
Presolve removed 52 rows and 235 columns
Presolve time: 2.59s
Presolved: 940 rows, 13686 columns, 759968 nonzeros
Variable types: 0 continuous, 13686 integer (13686 binary)
Found heuristic solution: objective 8509.0000000
Found heuristic solution: objective 7077.0000000

Root relaxation: objective 6.042000e+03, 3135 iterations, 0.86 seconds

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

*    0     0               0    6042.0000000 6042.00000   0.0%     -    3s

Explored 0 nodes (3135 simplex iterations) in 3.59 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 6.042000000000e+03, best bound 6.042000000000e+03, gap 0.0%