Gurobi 5.0.1 (linux64) logging started Mon Feb  4 16:00:56 2013

Optimize a model with 565 rows, 3200 columns and 220255 nonzeros
Presolve removed 10 rows and 10 columns
Presolve time: 0.66s
Presolved: 555 rows, 3190 columns, 219445 nonzeros
Variable types: 0 continuous, 3190 integer (3190 binary)
Found heuristic solution: objective 1896.0000000

Root relaxation: objective 1.754000e+03, 434 iterations, 0.03 seconds

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

*    0     0               0    1754.0000000 1754.00000   0.0%     -    0s

Explored 0 nodes (434 simplex iterations) in 0.73 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.754000000000e+03, best bound 1.754000000000e+03, gap 0.0%