Gurobi 5.0.1 (linux64) logging started Fri Jan 18 05:26:20 2013

Optimize a model with 32 rows, 522 columns and 5551 nonzeros
Presolve removed 12 rows and 12 columns
Presolve time: 0.01s
Presolved: 20 rows, 510 columns, 5027 nonzeros
Variable types: 501 continuous, 9 integer (9 binary)
Found heuristic solution: objective 2148.8203230

Root relaxation: objective 2.147484e+03, 13 iterations, 0.00 seconds

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

     0     0 2147.48432    0    7 2148.82032 2147.48432  0.06%     -    0s
     0     0 2148.14140    0    8 2148.82032 2148.14140  0.03%     -    0s
     0     0 2148.14174    0    9 2148.82032 2148.14174  0.03%     -    0s
     0     0 2148.14174    0    9 2148.82032 2148.14174  0.03%     -    0s

Cutting planes:
  Cover: 1
  Implied bound: 5
  Flow cover: 1

Explored 0 nodes (34 simplex iterations) in 0.05 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.148820323028e+03, best bound 2.148820323028e+03, gap 0.0%