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

Optimize a model with 160 rows, 1080 columns and 2170 nonzeros
Presolve removed 20 rows and 30 columns
Presolve time: 0.00s
Presolved: 140 rows, 1050 columns, 2100 nonzeros
Variable types: 1040 continuous, 10 integer (10 binary)

Root relaxation: objective 1.937272e+04, 93 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 19432.4067    0    2          - 19432.4067     -      -    0s
     0     0 19469.0020    0    2          - 19469.0020     -      -    0s
     0     0 19469.0020    0    2          - 19469.0020     -      -    0s
     0     0 19476.5542    0    1          - 19476.5542     -      -    0s
     0     0 19476.5542    0    1          - 19476.5542     -      -    0s
H    0     0                    19494.513812 19476.5542  0.09%     -    0s
     0     0 19494.5138    0    1 19494.5138 19494.5138   0.0%     -    0s

Cutting planes:
  Flow cover: 3

Explored 1 nodes (148 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%