Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:51:51 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 1.835043e+04, 220 iterations, 0.00 seconds

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

     0     0 18350.4284    0    3          - 18350.4284     -      -    0s
H    0     0                    18484.000000 18350.4284  0.72%     -    0s
     0     0     cutoff    0      18484.0000 18484.0000   0.0%     -    0s

Cutting planes:
  Implied bound: 40

Explored 0 nodes (236 simplex iterations) in 0.02 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.848400000000e+04, best bound 1.848400000000e+04, gap 0.0%