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 2.142172e+04, 221 iterations, 0.00 seconds

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

     0     0 21421.7214    0    3          - 21421.7214     -      -    0s
H    0     0                    21554.000000 21421.7214  0.61%     -    0s
H    0     0                    21511.000000 21421.7214  0.42%     -    0s
     0     0     cutoff    0      21511.0000 21511.0000   0.0%     -    0s

Cutting planes:
  Implied bound: 38
  Flow cover: 6

Explored 0 nodes (260 simplex iterations) in 0.02 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.151100000000e+04, best bound 2.151100000000e+04, gap 0.0%