Gurobi 5.0.1 (linux64) logging started Thu Jan 17 23:46:17 2013

Optimize a model with 1050 rows, 25650 columns and 52000 nonzeros
Presolve removed 100 rows and 100 columns
Presolve time: 0.19s
Presolved: 950 rows, 25550 columns, 51650 nonzeros
Variable types: 25350 continuous, 200 integer (200 binary)

Root relaxation: objective 1.715514e+05, 2497 iterations, 0.10 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                    183704.20005 171551.420  6.62%     -    0s
     0     0 171553.825    0    1 183704.200 171553.825  6.61%     -    0s
     0     0 171553.825    0    1 183704.200 171553.825  6.61%     -    0s
     0     2 171564.828    0    1 183704.200 171564.828  6.61%     -    0s
*    8     3               8    171584.76124 171584.761   0.0%  11.0    0s

Cutting planes:
  Flow cover: 1

Explored 9 nodes (2736 simplex iterations) in 0.75 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.715847612416e+05, best bound 1.715847612416e+05, gap 0.0%