Gurobi 5.0.1 (linux64) logging started Fri Jan 18 01:51:27 2013

Optimize a model with 1300 rows, 31800 columns and 95650 nonzeros
Presolve removed 50 rows and 1450 columns
Presolve time: 0.19s
Presolved: 1250 rows, 30350 columns, 90650 nonzeros
Variable types: 30050 continuous, 300 integer (300 binary)

Root relaxation: objective 1.715514e+05, 2914 iterations, 0.13 seconds

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

     0     0 171551.420    0    6          - 171551.420     -      -    0s
H    0     0                    171717.39591 171551.420  0.10%     -    0s
     0     0 171553.825    0    3 171717.396 171553.825  0.10%     -    0s
     0     0 171564.828    0    3 171717.396 171564.828  0.09%     -    0s
     0     0 171569.326    0    3 171717.396 171569.326  0.09%     -    0s
     0     0 171569.505    0    3 171717.396 171569.505  0.09%     -    0s
     0     0 171575.343    0    3 171717.396 171575.343  0.08%     -    0s
     0     0 171578.618    0    3 171717.396 171578.618  0.08%     -    0s
     0     0 171579.745    0    3 171717.396 171579.745  0.08%     -    1s
     0     0 171583.121    0    3 171717.396 171583.121  0.08%     -    1s
*    0     0               0    171584.76124 171584.761   0.0%     -    1s

Cutting planes:
  Flow cover: 1

Explored 0 nodes (4563 simplex iterations) in 1.14 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%