Gurobi 5.0.1 (linux64) logging started Mon Feb  4 16:04:50 2013

Optimize a model with 753 rows, 7849 columns and 447919 nonzeros
Presolve removed 27 rows and 2 columns
Presolve time: 1.02s
Presolved: 726 rows, 7847 columns, 443835 nonzeros
Variable types: 0 continuous, 7847 integer (7847 binary)
Found heuristic solution: objective 5011.0000000

Root relaxation: objective 3.995000e+03, 1795 iterations, 0.32 seconds

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

*    0     0               0    3995.0000000 3995.00000   0.0%     -    1s

Explored 0 nodes (1795 simplex iterations) in 1.41 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.995000000000e+03, best bound 3.995000000000e+03, gap 0.0%