Gurobi 5.0.1 (linux64) logging started Mon Feb  4 16:01:12 2013

Optimize a model with 499 rows, 3215 columns and 167381 nonzeros
Presolve removed 18 rows and 501 columns
Presolve time: 0.72s
Presolved: 481 rows, 2714 columns, 165559 nonzeros
Variable types: 0 continuous, 2714 integer (2714 binary)
Found heuristic solution: objective 2161.0000000
Found heuristic solution: objective 1942.0000000

Root relaxation: objective 1.792000e+03, 556 iterations, 0.04 seconds

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

*    0     0               0    1792.0000000 1792.00000   0.0%     -    0s

Explored 0 nodes (556 simplex iterations) in 0.80 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.792000000000e+03, best bound 1.792000000000e+03, gap 0.0%