Gurobi 5.0.1 (linux64) logging started Fri Jan 18 00:59:07 2013

Optimize a model with 1200 rows, 28550 columns and 66550 nonzeros
Presolve removed 50 rows and 1250 columns
Presolve time: 0.12s
Presolved: 1150 rows, 27300 columns, 64550 nonzeros
Variable types: 27050 continuous, 250 integer (250 binary)

Root relaxation: objective 2.208160e+05, 1943 iterations, 0.08 seconds

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

     0     0 220815.985    0   12          - 220815.985     -      -    0s
     0     0 220872.981    0    9          - 220872.981     -      -    0s
     0     0 220885.568    0   12          - 220885.568     -      -    0s
     0     0 220886.953    0   12          - 220886.953     -      -    0s
     0     0 220890.555    0    9          - 220890.555     -      -    0s
     0     0 220890.555    0    9          - 220890.555     -      -    0s
     0     0 220890.832    0   12          - 220890.832     -      -    0s
     0     0 220891.055    0   12          - 220891.055     -      -    0s
     0     0 220891.055    0   12          - 220891.055     -      -    1s
     0     2 220894.393    0   12          - 220894.393     -      -    2s
*   33    13              32    221477.24643 221055.225  0.19%  21.3    2s
*   51    18              16    221476.58715 221133.901  0.15%  21.2    2s

Cutting planes:
  Flow cover: 12

Explored 93 nodes (5155 simplex iterations) in 3.33 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.214765871511e+05, best bound 2.214554257593e+05, gap 0.0096%