Gurobi 5.0.1 (linux64) logging started Thu Jan 17 23:43:32 2013

Optimize a model with 190 rows, 1170 columns and 2410 nonzeros
Presolve removed 20 rows and 30 columns
Presolve time: 0.00s
Presolved: 170 rows, 1140 columns, 2280 nonzeros
Variable types: 1100 continuous, 40 integer (40 binary)

Root relaxation: objective 1.997658e+04, 115 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    2          - 19976.5790     -      -    0s
     0     0 20018.5518    0    4          - 20018.5518     -      -    0s
     0     0 20029.4537    0    4          - 20029.4537     -      -    0s
     0     0 20030.4868    0    3          - 20030.4868     -      -    0s
     0     0 20030.4868    0    3          - 20030.4868     -      -    0s
     0     0 20030.4868    0    3          - 20030.4868     -      -    0s
H    0     0                    20184.435784 20030.4868  0.76%     -    0s
     0     2 20034.5296    0    3 20184.4358 20034.5296  0.74%     -    0s
*    4     3               4    20159.818049 20086.8470  0.36%   8.5    0s
*    7     1               6    20156.328750 20086.8470  0.34%   6.3    0s

Cutting planes:
  Gomory: 2
  Flow cover: 4

Explored 9 nodes (210 simplex iterations) in 0.04 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.015632875028e+04, best bound 2.015632875028e+04, gap 0.0%