Gurobi 5.0.1 (linux64) logging started Mon Feb  4 16:10:35 2013

Optimize a model with 711 rows, 7828 columns and 363897 nonzeros
Presolve removed 13 rows and 700 columns
Presolve time: 1.57s
Presolved: 698 rows, 7128 columns, 361362 nonzeros
Variable types: 0 continuous, 7128 integer (7128 binary)
Found heuristic solution: objective 4456.0000000

Root relaxation: objective 3.127000e+03, 1479 iterations, 0.23 seconds

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

*    0     0               0    3127.0000000 3127.00000   0.0%     -    1s

Explored 0 nodes (1479 simplex iterations) in 1.86 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.127000000000e+03, best bound 3.127000000000e+03, gap 0.0%