Gurobi 5.0.1 (linux64) logging started Fri Jan 18 01:52:46 2013

Optimize a model with 3300 rows, 30150 columns and 67750 nonzeros
Presolve removed 50 rows and 50 columns
Presolve time: 0.23s
Presolved: 3250 rows, 30100 columns, 65200 nonzeros
Variable types: 27600 continuous, 2500 integer (2500 binary)

Root relaxation: objective 2.198499e+05, 3722 iterations, 0.13 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
     0     0 219898.837    0    2          - 219898.837     -      -    0s
     0     0 219920.225    0    2          - 219920.225     -      -    0s
     0     0 219921.748    0    2          - 219921.748     -      -    0s
     0     0 219921.808    0    2          - 219921.808     -      -    0s
     0     0 219924.329    0    2          - 219924.329     -      -    0s
     0     0 219924.329    0    2          - 219924.329     -      -    0s
     0     0 219924.329    0    2          - 219924.329     -      -    0s
     0     2 219924.329    0    2          - 219924.329     -      -    2s
*   53    35              27    223216.56558 220954.559  1.01%  64.0    3s
*   72    20              44    222622.35999 220954.559  0.75%  51.4    4s
*  100    13              22    221990.70522 221014.973  0.44%  46.8    4s
*  103    13              24    221990.67135 221014.973  0.44%  45.5    4s
   110    10     cutoff    4      221990.671 221162.189  0.37%  49.7    5s
*  134     4              22    221988.45873 221927.487  0.03%  44.1    5s

Cutting planes:
  Gomory: 1
  Implied bound: 51
  Flow cover: 4

Explored 144 nodes (10692 simplex iterations) in 5.40 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.219884587317e+05, best bound 2.219884587317e+05, gap 0.0%