Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:52:06 2013

Optimize a model with 242 rows, 4862 columns and 9702 nonzeros
Presolve time: 0.01s
Presolved: 242 rows, 4862 columns, 9702 nonzeros
Variable types: 4840 continuous, 22 integer (22 binary)

Root relaxation: objective 1.920456e+04, 189 iterations, 0.00 seconds

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

     0     0 19204.5635    0    5          - 19204.5635     -      -    0s
H    0     0                    19670.000000 19204.5635  2.37%     -    0s
     0     0 19469.0833    0    3 19670.0000 19469.0833  1.02%     -    0s
H    0     0                    19487.000000 19469.0833  0.09%     -    0s
     0     0 19470.3000    0    2 19487.0000 19470.3000  0.09%     -    0s
     0     0 19473.2500    0    2 19487.0000 19473.2500  0.07%     -    0s
     0     0 19473.5000    0    1 19487.0000 19473.5000  0.07%     -    0s
     0     0 19475.9444    0    2 19487.0000 19475.9444  0.06%     -    0s
     0     0 19477.0000    0    1 19487.0000 19477.0000  0.05%     -    0s
H    0     0                    19478.000000 19477.0000  0.01%     -    0s

Cutting planes:
  Implied bound: 25
  Flow cover: 3

Explored 0 nodes (262 simplex iterations) in 0.06 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.947800000000e+04, best bound 1.947700000000e+04, gap 0.0051%