Gurobi 5.0.1 (linux64) logging started Fri Jan 18 00:57:59 2013

Optimize a model with 1700 rows, 28100 columns and 58050 nonzeros
Presolve removed 100 rows and 150 columns
Presolve time: 0.25s
Presolved: 1600 rows, 27950 columns, 55900 nonzeros
Variable types: 27000 continuous, 950 integer (950 binary)

Root relaxation: objective 1.715514e+05, 3470 iterations, 0.16 seconds

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

     0     0 171551.420    0    2          - 171551.420     -      -    0s
H    0     0                    171584.76124 171551.420  0.02%     -    0s
     0     0 171553.825    0    1 171584.761 171553.825  0.02%     -    0s
     0     0 171564.828    0    1 171584.761 171564.828  0.01%     -    0s
     0     0 171575.343    0    1 171584.761 171575.343  0.01%     -    0s

Cutting planes:
  Flow cover: 1

Explored 0 nodes (3543 simplex iterations) in 0.73 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.715847612416e+05, best bound 1.715753432549e+05, gap 0.0055%