Gurobi 5.0.1 (linux64) logging started Mon Dec 10 23:29:58 2012

Optimize a model with 2190 rows, 2160 columns and 7153 nonzeros
Presolve removed 99 rows and 61 columns
Presolve time: 0.02s
Presolved: 2091 rows, 2099 columns, 6921 nonzeros
Variable types: 1398 continuous, 701 integer (701 binary)

Root relaxation: objective 1.892453e+05, 1077 iterations, 0.01 seconds

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

     0     0 189245.254    0  386          - 189245.254     -      -    0s
H    0     0                    331860.00000 189245.254  43.0%     -    0s
H    0     0                    331275.00000 189245.254  42.9%     -    0s
     0     0 239431.395    0   76 331275.000 239431.395  27.7%     -    0s
H    0     0                    248749.00000 239431.395  3.75%     -    0s
     0     0 241153.982    0   61 248749.000 241153.982  3.05%     -    0s
     0     0 241822.874    0    1 248749.000 241822.874  2.78%     -    0s
     0     0 241822.874    0    1 248749.000 241822.874  2.78%     -    0s
     0     2 241823.105    0    1 248749.000 241823.105  2.78%     -    0s
*    2     2               2    241824.00000 241823.105  0.00%   2.5    1s

Cutting planes:
  Gomory: 24
  Cover: 4
  Implied bound: 2
  Flow cover: 223
  Flow path: 167

Explored 3 nodes (1593 simplex iterations) in 1.07 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.418240000000e+05, best bound 2.418231052632e+05, gap 0.0004%