Gurobi 5.0.1 (linux64) logging started Fri Jan 18 00:18:12 2013

Optimize a model with 1100 rows, 26900 columns and 57450 nonzeros
Presolve removed 50 rows and 650 columns
Presolve time: 0.08s
Presolved: 1050 rows, 26250 columns, 56450 nonzeros
Variable types: 26050 continuous, 200 integer (200 binary)

Root relaxation: objective 2.198499e+05, 2120 iterations, 0.06 seconds

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

     0     0 219849.939    0    4          - 219849.939     -      -    0s
H    0     0                    252722.75625 219849.939  13.0%     -    0s
     0     0 219873.426    0    4 252722.756 219873.426  13.0%     -    0s
     0     0 219879.532    0    4 252722.756 219879.532  13.0%     -    0s
     0     0 219888.662    0    4 252722.756 219888.662  13.0%     -    0s
     0     0 219888.694    0    4 252722.756 219888.694  13.0%     -    0s
     0     0 219892.184    0    4 252722.756 219892.184  13.0%     -    0s
     0     0 219892.184    0    4 252722.756 219892.184  13.0%     -    0s
     0     0 219892.184    0    4 252722.756 219892.184  13.0%     -    0s
     0     2 219909.558    0    4 252722.756 219909.558  13.0%     -    0s
H   27    22                    222551.70375 220232.553  1.04%  45.7    1s
H   81    51                    222467.28942 220471.225  0.90%  39.6    2s
*  188    33              18    221983.10724 220955.957  0.46%  35.3    3s

Cutting planes:
  Flow cover: 6

Explored 267 nodes (11907 simplex iterations) in 3.91 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.219831072369e+05, best bound 2.219732252515e+05, gap 0.0045%