Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:51:58 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 1.927693e+04, 130 iterations, 0.00 seconds

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

     0     0 19276.9256    0    6          - 19276.9256     -      -    0s
H    0     0                    19523.000000 19276.9256  1.26%     -    0s
H    0     0                    19395.000000 19276.9256  0.61%     -    0s
     0     0 19373.5853    0    2 19395.0000 19373.5853  0.11%     -    0s
     0     0 19377.6947    0    2 19395.0000 19377.6947  0.09%     -    0s
     0     0 19383.9053    0    2 19395.0000 19383.9053  0.06%     -    0s
     0     0 19385.4842    0    2 19395.0000 19385.4842  0.05%     -    0s
     0     0 19386.5368    0    2 19395.0000 19386.5368  0.04%     -    0s
     0     0     cutoff    0      19395.0000 19395.0000   0.0%     -    0s

Cutting planes:
  Implied bound: 26
  Flow cover: 3

Explored 0 nodes (177 simplex iterations) in 0.04 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.939500000000e+04, best bound 1.939500000000e+04, gap 0.0%