Gurobi 5.0.1 (linux64) logging started Fri Jan 18 00:18:53 2013

Optimize a model with 1300 rows, 26150 columns and 53750 nonzeros
Presolve removed 100 rows and 100 columns
Presolve time: 0.29s
Presolved: 1200 rows, 26050 columns, 53400 nonzeros
Variable types: 25600 continuous, 450 integer (450 binary)

Root relaxation: objective 1.824192e+05, 2260 iterations, 0.13 seconds

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

     0     0 182419.206    0    1          - 182419.206     -      -    0s
H    0     0                    191688.51045 182419.206  4.84%     -    0s
     0     0 182445.503    0    2 191688.510 182445.503  4.82%     -    0s
     0     0 182457.494    0    2 191688.510 182457.494  4.82%     -    0s
     0     0 182471.658    0    2 191688.510 182471.658  4.81%     -    0s
     0     0 182474.047    0    2 191688.510 182474.047  4.81%     -    0s
     0     0 182484.646    0    2 191688.510 182484.646  4.80%     -    0s
     0     0 182486.648    0    2 191688.510 182486.648  4.80%     -    0s
     0     0 182487.923    0    2 191688.510 182487.923  4.80%     -    1s
     0     0 182489.537    0    2 191688.510 182489.537  4.80%     -    1s
     0     0 182489.537    0    2 191688.510 182489.537  4.80%     -    1s
     0     0 182489.537    0    2 191688.510 182489.537  4.80%     -    1s
     0     2 182493.887    0    2 191688.510 182493.887  4.80%     -    1s
H   27    20                    184001.20915 182518.437  0.81%  27.5    2s
H   54    21                    183446.17215 182518.437  0.51%  17.8    2s
*  141     5              11    182879.22514 182701.496  0.10%  11.3    4s

Cutting planes:
  Flow cover: 12

Explored 145 nodes (4186 simplex iterations) in 4.17 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.828792251419e+05, best bound 1.828778660869e+05, gap 0.0007%