Gurobi 5.0.1 (linux64) logging started Fri Jan 18 04:02:35 2013

Optimize a model with 30 rows, 532 columns and 4437 nonzeros
Presolve removed 12 rows and 124 columns
Presolve time: 0.01s
Presolved: 18 rows, 408 columns, 4014 nonzeros
Variable types: 400 continuous, 8 integer (8 binary)

Root relaxation: objective 2.006494e+03, 9 iterations, 0.00 seconds

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

     0     0 2006.49352    0    3          - 2006.49352     -      -    0s
     0     0 2006.49775    0    3          - 2006.49775     -      -    0s
     0     0 2006.52606    0    2          - 2006.52606     -      -    0s
H    0     0                    2006.5280949 2006.52606  0.00%     -    0s

Cutting planes:
  Implied bound: 1
  Flow cover: 1

Explored 0 nodes (20 simplex iterations) in 0.03 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.006528094918e+03, best bound 2.006526064703e+03, gap 0.0001%