Gurobi 5.0.1 (linux64) logging started Fri Jan 18 07:43:40 2013

Optimize a model with 680 rows, 45200 columns and 528420 nonzeros
Presolve removed 20 rows and 980 columns
Presolve time: 1.37s
Presolved: 660 rows, 44220 columns, 488420 nonzeros
Variable types: 44020 continuous, 200 integer (200 binary)

Root relaxation: objective 3.600389e+04, 503 iterations, 0.04 seconds

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

     0     0 36003.8892    0   16          - 36003.8892     -      -    1s
     0     0 36004.3106    0   16          - 36004.3106     -      -    2s
     0     0 36004.3818    0   16          - 36004.3818     -      -    2s
     0     0 36004.4437    0   16          - 36004.4437     -      -    2s
     0     0 36004.4437    0   16          - 36004.4437     -      -    3s
     0     2 36004.5006    0   16          - 36004.5006     -      -    8s
   133   133 36486.1247  117    2          - 36014.9418     -    5.6   10s
*  387   342             150    36780.770785 36017.9842  2.07%   4.8   11s
H  442    36                    36224.116313 36059.7520  0.45%   4.8   12s
*  454    18              17    36202.402686 36105.8396  0.27%   5.0   12s

Cutting planes:
  Flow cover: 6

Explored 484 nodes (3409 simplex iterations) in 13.51 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.620240268604e+04, best bound 3.619881557954e+04, gap 0.0099%