Gurobi 5.0.1 (linux64) logging started Fri Jan 18 01:51:14 2013

Optimize a model with 1300 rows, 31800 columns and 95650 nonzeros
Presolve removed 50 rows and 1450 columns
Presolve time: 0.14s
Presolved: 1250 rows, 30350 columns, 90650 nonzeros
Variable types: 30050 continuous, 300 integer (300 binary)

Root relaxation: objective 1.650739e+05, 2274 iterations, 0.09 seconds

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

     0     0 165073.856    0    6          - 165073.856     -      -    0s
H    0     0                    174748.73454 165073.856  5.54%     -    0s
H    0     0                    170228.32701 165073.856  3.03%     -    0s
     0     0 165100.411    0    9 170228.327 165100.411  3.01%     -    0s
     0     0 165100.462    0    9 170228.327 165100.462  3.01%     -    0s
     0     0 165103.798    0    9 170228.327 165103.798  3.01%     -    0s
     0     0 165106.912    0    6 170228.327 165106.912  3.01%     -    0s
     0     0 165116.124    0    9 170228.327 165116.124  3.00%     -    0s
     0     0 165122.245    0    9 170228.327 165122.245  3.00%     -    0s
     0     0 165122.284    0    9 170228.327 165122.284  3.00%     -    0s
     0     0 165122.284    0    9 170228.327 165122.284  3.00%     -    1s
     0     0 165122.284    0    9 170228.327 165122.284  3.00%     -    1s
     0     2 165132.449    0    9 170228.327 165132.449  2.99%     -    1s
*   11     4              11    165621.92658 165607.513  0.01%  35.5    2s

Cutting planes:
  Flow cover: 9

Explored 12 nodes (3431 simplex iterations) in 2.16 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.656219265842e+05, best bound 1.656075126568e+05, gap 0.0087%