Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:50:59 2013

Optimize a model with 938 rows, 846 columns and 3330 nonzeros
Presolve removed 9 rows and 0 columns
Presolve time: 0.00s
Presolved: 929 rows, 846 columns, 3321 nonzeros
Variable types: 837 continuous, 9 integer (9 binary)

Root relaxation: objective 1.981747e+04, 287 iterations, 0.00 seconds

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

     0     0 19817.4716    0    6          - 19817.4716     -      -    0s
H    0     0                    20118.000000 19817.4716  1.49%     -    0s
     0     0     cutoff    0      20118.0000 20118.0000   0.0%     -    0s

Cutting planes:
  Gomory: 4
  Implied bound: 6

Explored 0 nodes (325 simplex iterations) in 0.02 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.011800000000e+04, best bound 2.011800000000e+04, gap 0.0%