Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:52:16 2013

Optimize a model with 253 rows, 5313 columns and 10603 nonzeros
Presolve time: 0.01s
Presolved: 253 rows, 5313 columns, 10603 nonzeros
Variable types: 5290 continuous, 23 integer (23 binary)

Root relaxation: objective 1.957707e+04, 155 iterations, 0.00 seconds

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

     0     0 19577.0744    0    5          - 19577.0744     -      -    0s
H    0     0                    19835.000000 19577.0744  1.30%     -    0s
     0     0 19785.2511    0    2 19835.0000 19785.2511  0.25%     -    0s
     0     0 19799.2222    0    1 19835.0000 19799.2222  0.18%     -    0s
     0     0 19801.9767    0    1 19835.0000 19801.9767  0.17%     -    0s
     0     0 19803.4651    0    1 19835.0000 19803.4651  0.16%     -    0s
     0     0 19815.9130    0    1 19835.0000 19815.9130  0.10%     -    0s
*    0     0               0    19831.000000 19831.0000   0.0%     -    0s

Cutting planes:
  Implied bound: 19
  Flow cover: 2

Explored 0 nodes (208 simplex iterations) in 0.05 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.983100000000e+04, best bound 1.983100000000e+04, gap 0.0%