Gurobi 5.0.1 (linux64) logging started Fri Jan 18 00:55:21 2013

Optimize a model with 240 rows, 1710 columns and 5310 nonzeros
Presolve removed 10 rows and 250 columns
Presolve time: 0.01s
Presolved: 230 rows, 1460 columns, 4910 nonzeros
Variable types: 1410 continuous, 50 integer (50 binary)

Root relaxation: objective 1.937272e+04, 132 iterations, 0.00 seconds

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

     0     0 19372.7157    0    6          - 19372.7157     -      -    0s
     0     0 19381.2383    0   10          - 19381.2383     -      -    0s
     0     0 19381.2960    0   10          - 19381.2960     -      -    0s
     0     0 19382.1141    0   10          - 19382.1141     -      -    0s
     0     0 19448.4813    0    7          - 19448.4813     -      -    0s
     0     0 19448.4813    0    7          - 19448.4813     -      -    0s
H    0     0                    19708.157341 19448.4813  1.32%     -    0s
     0     2 19449.9239    0    7 19708.1573 19449.9239  1.31%     -    0s
*    6     5               5    19513.567182 19449.9239  0.33%  10.8    0s

Cutting planes:
  Gomory: 2
  Flow cover: 1

Explored 17 nodes (389 simplex iterations) in 0.08 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.951356718242e+04, best bound 1.951356718242e+04, gap 0.0%