Gurobi 5.0.1 (linux64) logging started Mon Feb  4 16:01:09 2013

Optimize a model with 626 rows, 3973 columns and 261501 nonzeros
Presolve removed 33 rows and 38 columns
Presolve time: 2.61s
Presolved: 593 rows, 3935 columns, 258503 nonzeros
Variable types: 0 continuous, 3935 integer (3935 binary)
Found heuristic solution: objective 2186.0000000

Root relaxation: objective 2.024000e+03, 381 iterations, 0.03 seconds

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

*    0     0               0    2024.0000000 2024.00000   0.0%     -    2s

Explored 0 nodes (381 simplex iterations) in 2.69 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.024000000000e+03, best bound 2.024000000000e+03, gap 0.0%