Gurobi 5.0.1 (linux64) logging started Mon Feb  4 16:25:58 2013

Optimize a model with 1106 rows, 21697 columns and 972392 nonzeros
Presolve removed 53 rows and 187 columns
Presolve time: 4.51s
Presolved: 1053 rows, 21510 columns, 966018 nonzeros
Variable types: 0 continuous, 21510 integer (21510 binary)
Found heuristic solution: objective 11849.000000

Root relaxation: objective 7.628000e+03, 5431 iterations, 2.33 seconds

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

*    0     0               0    7628.0000000 7628.00000   0.0%     -    7s

Explored 0 nodes (5431 simplex iterations) in 7.01 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 7.628000000000e+03, best bound 7.628000000000e+03, gap 0.0%