Gurobi 5.0.1 (linux64) logging started Fri Jan 18 05:56:26 2013

Optimize a model with 1600 rows, 76750 columns and 650950 nonzeros
Presolve removed 50 rows and 1250 columns
Presolve time: 1.50s
Presolved: 1550 rows, 75500 columns, 600950 nonzeros
Variable types: 75050 continuous, 450 integer (450 binary)

Root relaxation: objective 2.208160e+05, 2523 iterations, 0.28 seconds

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

     0     0 220815.985    0   28          - 220815.985     -      -    2s
     0     0 220820.305    0   28          - 220820.305     -      -    2s
     0     0 220821.163    0   27          - 220821.163     -      -    3s
     0     0 220822.358    0   28          - 220822.358     -      -    3s
     0     0 220822.523    0   28          - 220822.523     -      -    3s
     0     0 220822.586    0   27          - 220822.586     -      -    4s
     0     0 220822.703    0   28          - 220822.703     -      -    4s
     0     0 220822.703    0   28          - 220822.703     -      -    4s
     0     0 220822.703    0   28          - 220822.703     -      -    5s
     0     0 220822.703    0   28          - 220822.703     -      -    5s
     0     0 220822.703    0   28          - 220822.703     -      -    6s
     0     0 220822.812    0   28          - 220822.812     -      -    6s
     0     0 220822.812    0   28          - 220822.812     -      -    7s
     0     0 220822.812    0   28          - 220822.812     -      -    8s
     0     2 220823.232    0   28          - 220823.232     -      -   18s
    14    16 221150.815   12    7          - 220832.635     -   55.7   20s
*  108    68              93    221536.31468 220832.635  0.32%  14.0   24s
   132    81 221476.360   23    1 221536.315 220989.981  0.25%  14.5   25s
H  137    65                    221505.58427 220989.981  0.23%  14.2   25s
*  144    67              31    221503.03668 220989.981  0.23%  13.8   25s
*  251    92              38    221480.67561 221156.646  0.15%  14.1   28s
*  280    97              37    221480.50163 221157.102  0.15%  13.6   29s
   299    97 221354.262   19    7 221480.502 221175.169  0.14%  13.5   30s
*  316    90              36    221477.33686 221175.169  0.14%  13.2   30s
*  320    88              36    221477.32393 221175.169  0.14%  13.0   30s
   482   105 221392.876   23    7 221477.324 221295.212  0.08%  14.0   35s
*  534    91              28    221476.99200 221329.959  0.07%  14.2   36s
   664    85 221419.002   17    7 221476.992 221399.057  0.04%  13.5   40s
*  776    79              31    221476.77481 221422.173  0.02%  12.7   42s

Cutting planes:
  Flow cover: 15

Explored 855 nodes (15633 simplex iterations) in 44.40 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.214767748146e+05, best bound 2.214549599994e+05, gap 0.0098%