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: 0.00s
Presolved: 231 rows, 4431 columns, 8841 nonzeros
Variable types: 4410 continuous, 21 integer (21 binary)

Root relaxation: objective 1.966988e+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 19669.8839    0    2          - 19669.8839     -      -    0s
H    0     0                    19832.000000 19669.8839  0.82%     -    0s
     0     0 19808.8822    0    2 19832.0000 19808.8822  0.12%     -    0s
     0     0 19815.8623    0    2 19832.0000 19815.8623  0.08%     -    0s
     0     0 19819.5859    0    2 19832.0000 19819.5859  0.06%     -    0s
     0     0 19825.4286    0    1 19832.0000 19825.4286  0.03%     -    0s
     0     0 19825.8182    0    1 19832.0000 19825.8182  0.03%     -    0s
     0     0 19826.0000    0    1 19832.0000 19826.0000  0.03%     -    0s
*    0     0               0    19826.000000 19826.0000   0.0%     -    0s

Cutting planes:
  Implied bound: 20
  Flow cover: 6

Explored 0 nodes (285 simplex iterations) in 0.05 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.982600000000e+04, best bound 1.982600000000e+04, gap 0.0%