Gurobi 5.0.1 (linux64) logging started Sat Dec  8 02:36:07 2012

Optimize a model with 285 rows, 270 columns and 887 nonzeros
Presolve removed 40 rows and 24 columns
Presolve time: 0.00s
Presolved: 245 rows, 246 columns, 789 nonzeros
Variable types: 165 continuous, 81 integer (81 binary)

Root relaxation: objective 2.620419e+04, 124 iterations, 0.00 seconds

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

     0     0 26204.1878    0   36          - 26204.1878     -      -    0s
H    0     0                    41685.000000 26204.1878  37.1%     -    0s
H    0     0                    41278.000000 26204.1878  36.5%     -    0s
     0     0 29145.7257    0   17 41278.0000 29145.7257  29.4%     -    0s
     0     0 29232.3537    0   22 41278.0000 29232.3537  29.2%     -    0s
     0     0 29278.4589    0   14 41278.0000 29278.4589  29.1%     -    0s
     0     0 29282.4006    0   16 41278.0000 29282.4006  29.1%     -    0s
     0     2 29287.2380    0   16 41278.0000 29287.2380  29.0%     -    0s
H   46    43                    32332.000000 29290.1240  9.41%   7.2    0s
H   54    30                    31144.000000 29296.3923  5.93%   6.9    0s
H   80    48                    30585.000000 29296.3923  4.21%   6.8    0s
*  165    90              33    30368.000000 29391.7119  3.21%   5.8    0s
*  291   124              28    30176.000000 29474.9433  2.32%   5.4    1s
H  600   115                    29832.000000 29549.2413  0.95%   5.3    3s
*  733   105              28    29815.000000 29577.4017  0.80%   6.1    4s
   805    75     cutoff   19      29815.0000 29693.2554  0.41%   6.1    5s

Cutting planes:
  Gomory: 3
  Flow cover: 7
  Flow path: 1

Explored 870 nodes (5383 simplex iterations) in 5.38 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.981500000000e+04, best bound 2.981255364970e+04, gap 0.0082%