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 1.937272e+04, 98 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 19410.3473    0    3          - 19410.3473     -      -    0s
     0     0 19420.8515    0    3          - 19420.8515     -      -    0s
     0     0 19421.6602    0    3          - 19421.6602     -      -    0s
     0     0 19421.6602    0    3          - 19421.6602     -      -    0s
     0     0 19460.8411    0    1          - 19460.8411     -      -    0s
     0     0 19460.8411    0    1          - 19460.8411     -      -    0s
H    0     0                    19511.545693 19460.8411  0.26%     -    0s
     0     2 19490.1865    0    1 19511.5457 19490.1865  0.11%     -    0s

Cutting planes:
  Flow cover: 2

Explored 3 nodes (161 simplex iterations) in 0.03 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.951154569350e+04, best bound 1.951154569350e+04, gap 0.0%