Gurobi 5.0.1 (linux64) logging started Mon Feb  4 16:02:54 2013

Optimize a model with 639 rows, 6025 columns and 306972 nonzeros
Presolve removed 7 rows and 7 columns
Presolve time: 1.54s
Presolved: 632 rows, 6018 columns, 306419 nonzeros
Variable types: 0 continuous, 6018 integer (6018 binary)
Found heuristic solution: objective 4126.0000000
Found heuristic solution: objective 3204.0000000

Root relaxation: objective 2.835000e+03, 1270 iterations, 0.18 seconds

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

*    0     0               0    2835.0000000 2835.00000   0.0%     -    1s

Explored 0 nodes (1270 simplex iterations) in 1.76 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.835000000000e+03, best bound 2.835000000000e+03, gap 0.0%