Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:12:01 2013

Optimize a model with 26571 rows, 26061 columns and 104091 nonzeros
Presolve removed 1327 rows and 0 columns
Presolve time: 0.16s
Presolved: 25244 rows, 26061 columns, 101437 nonzeros
Variable types: 26010 continuous, 51 integer (51 binary)

Root relaxation: objective 4.474150e+04, 3215 iterations, 0.28 seconds

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

     0     0 44741.5029    0    3          - 44741.5029     -      -    0s
H    0     0                    44947.000000 44741.5029  0.46%     -    0s
     0     0 44742.3882    0    4 44947.0000 44742.3882  0.46%     -    0s
     0     0 44742.5010    0    4 44947.0000 44742.5010  0.45%     -    0s
     0     0 44742.9615    0    4 44947.0000 44742.9615  0.45%     -    0s
     0     0 44742.9615    0    4 44947.0000 44742.9615  0.45%     -    0s
H    0     0                    44833.000000 44742.9615  0.20%     -    1s
     0     0 44794.5874    0    3 44833.0000 44794.5874  0.09%     -    1s
     0     0 44799.4737    0    1 44833.0000 44799.4737  0.07%     -    1s
     0     0 44799.4737    0    1 44833.0000 44799.4737  0.07%     -    1s
     0     0     cutoff    0      44833.0000 44833.0000   0.0%     -    1s

Cutting planes:
  Flow cover: 1

Explored 0 nodes (3903 simplex iterations) in 1.86 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.483300000000e+04, best bound 4.483300000000e+04, gap 0.0%