Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:01:19 2013

Optimize a model with 18963 rows, 18533 columns and 74003 nonzeros
Presolve removed 979 rows and 0 columns
Presolve time: 0.11s
Presolved: 17984 rows, 18533 columns, 72045 nonzeros
Variable types: 18490 continuous, 43 integer (43 binary)

Root relaxation: objective 4.565584e+04, 2885 iterations, 0.21 seconds

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

     0     0 45655.8402    0    3          - 45655.8402     -      -    0s
H    0     0                    45871.000000 45655.8402  0.47%     -    0s
H    0     0                    45736.000000 45655.8402  0.18%     -    0s
     0     0 45657.6119    0    4 45736.0000 45657.6119  0.17%     -    0s
     0     0 45696.3795    0    4 45736.0000 45696.3795  0.09%     -    0s
     0     0 45697.2228    0    4 45736.0000 45697.2228  0.08%     -    0s
     0     0 45698.5556    0    4 45736.0000 45698.5556  0.08%     -    0s
     0     0 45699.5905    0    4 45736.0000 45699.5905  0.08%     -    0s
     0     0 45699.9604    0    4 45736.0000 45699.9604  0.08%     -    0s
     0     0 45708.0772    0    3 45736.0000 45708.0772  0.06%     -    1s
H    0     0                    45715.000000 45708.0772  0.02%     -    1s
     0     0 45711.1034    0    1 45715.0000 45711.1034  0.01%     -    1s

Explored 0 nodes (3457 simplex iterations) in 1.29 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.571500000000e+04, best bound 4.571110344828e+04, gap 0.0085%