Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:51:50 2013

Optimize a model with 220 rows, 4020 columns and 8020 nonzeros
Presolve time: 0.00s
Presolved: 220 rows, 4020 columns, 8020 nonzeros
Variable types: 4000 continuous, 20 integer (20 binary)

Root relaxation: objective 1.985880e+04, 141 iterations, 0.00 seconds

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

     0     0 19858.8013    0    7          - 19858.8013     -      -    0s
H    0     0                    20041.000000 19858.8013  0.91%     -    0s
H    0     0                    19930.000000 19858.8013  0.36%     -    0s
     0     0 19926.7143    0    2 19930.0000 19926.7143  0.02%     -    0s
     0     0 19927.7143    0    1 19930.0000 19927.7143  0.01%     -    0s

Cutting planes:
  Implied bound: 16
  Flow cover: 1

Explored 0 nodes (188 simplex iterations) in 0.03 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.993000000000e+04, best bound 1.993000000000e+04, gap 0.0%