Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:51:57 2013

Optimize a model with 231 rows, 4431 columns and 8841 nonzeros
Presolve time: 0.01s
Presolved: 231 rows, 4431 columns, 8841 nonzeros
Variable types: 4410 continuous, 21 integer (21 binary)

Root relaxation: objective 2.165886e+04, 222 iterations, 0.00 seconds

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

     0     0 21658.8552    0    3          - 21658.8552     -      -    0s
H    0     0                    21747.000000 21658.8552  0.41%     -    0s
     0     0     cutoff    0      21747.0000 21747.0000   0.0%     -    0s

Cutting planes:
  Implied bound: 56
  Flow cover: 3

Explored 0 nodes (229 simplex iterations) in 0.02 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.174700000000e+04, best bound 2.174700000000e+04, gap 0.0%