Gurobi 5.0.1 (linux64) logging started Thu Jan 17 23:16:18 2013

Optimize a model with 160 rows, 1060 columns and 2140 nonzeros
Presolve removed 10 rows and 10 columns
Presolve time: 0.00s
Presolved: 150 rows, 1050 columns, 2110 nonzeros
Variable types: 1040 continuous, 10 integer (10 binary)

Root relaxation: objective 1.937272e+04, 97 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    2          - 19372.7157     -      -    0s
     0     0 19412.7794    0    2          - 19412.7794     -      -    0s
     0     0 19427.4632    0    2          - 19427.4632     -      -    0s
     0     0 19474.4113    0    1          - 19474.4113     -      -    0s
     0     0 19474.4113    0    1          - 19474.4113     -      -    0s
H    0     0                    19494.513812 19474.4113  0.10%     -    0s
     0     0 19494.5138    0    1 19494.5138 19494.5138   0.0%     -    0s

Cutting planes:
  Flow cover: 1

Explored 1 nodes (177 simplex iterations) in 0.02 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.949451381174e+04, best bound 1.949451381174e+04, gap 0.0%