Gurobi 5.0.1 (linux64) logging started Mon Feb  4 18:55:39 2013

Optimize a model with 24857 rows, 2809 columns and 75843 nonzeros
Presolve removed 2484 rows and 1429 columns
Presolve time: 0.18s
Presolved: 22373 rows, 1380 columns, 68319 nonzeros
Variable types: 24 continuous, 1356 integer (1356 binary)
Found heuristic solution: objective 61756.000000

Root relaxation: objective 4.443353e+04, 7326 iterations, 0.39 seconds

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

     0     0 44433.5333    0    7 61756.0000 44433.5333  28.0%     -    0s
H    0     0                    44440.000000 44433.5333  0.01%     -    0s
H    0     0                    44437.000000 44433.5333  0.01%     -    0s

Explored 0 nodes (7352 simplex iterations) in 0.67 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.443700000000e+04, best bound 4.443400000000e+04, gap 0.0068%