Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:51:44 2013

Optimize a model with 209 rows, 3629 columns and 7239 nonzeros
Presolve time: 0.00s
Presolved: 209 rows, 3629 columns, 7239 nonzeros
Variable types: 3610 continuous, 19 integer (19 binary)

Root relaxation: objective 2.090719e+04, 166 iterations, 0.00 seconds

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

     0     0 20907.1906    0    2          - 20907.1906     -      -    0s
H    0     0                    20954.000000 20907.1906  0.22%     -    0s
     0     0 20949.3478    0    1 20954.0000 20949.3478  0.02%     -    0s
     0     0 20953.3714    0    1 20954.0000 20953.3714  0.00%     -    0s

Cutting planes:
  Implied bound: 12
  Flow cover: 1

Explored 0 nodes (188 simplex iterations) in 0.02 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.095400000000e+04, best bound 2.095337142857e+04, gap 0.0030%