Gurobi 5.0.1 (linux64) logging started Fri Jan 18 00:15:48 2013

Optimize a model with 220 rows, 1170 columns and 2760 nonzeros
Presolve removed 10 rows and 10 columns
Presolve time: 0.00s
Presolved: 210 rows, 1160 columns, 2650 nonzeros
Variable types: 1120 continuous, 40 integer (40 binary)

Root relaxation: objective 1.997658e+04, 153 iterations, 0.00 seconds

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

     0     0 19976.5790    0    6          - 19976.5790     -      -    0s
     0     0 19987.3754    0    8          - 19987.3754     -      -    0s
     0     0 19988.3471    0    8          - 19988.3471     -      -    0s
     0     0 20138.8915    0    6          - 20138.8915     -      -    0s
     0     0 20138.8915    0    6          - 20138.8915     -      -    0s
H    0     0                    20729.032288 20138.8915  2.85%     -    0s
     0     2 20138.8915    0    6 20729.0323 20138.8915  2.85%     -    0s
*    5     5               5    20157.611196 20138.8915  0.09%  13.6    0s

Cutting planes:
  Flow cover: 2

Explored 9 nodes (416 simplex iterations) in 0.05 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.015761119649e+04, best bound 2.015761119649e+04, gap 0.0%