Gurobi 5.0.1 (linux64) logging started Sat Dec  8 02:35:19 2012

Optimize a model with 285 rows, 270 columns and 887 nonzeros
Presolve removed 41 rows and 27 columns
Presolve time: 0.00s
Presolved: 244 rows, 243 columns, 783 nonzeros
Variable types: 162 continuous, 81 integer (81 binary)

Root relaxation: objective 2.620419e+04, 125 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                    37285.000000 26204.1878  29.7%     -    0s
     0     0 29145.7257    0   17 37285.0000 29145.7257  21.8%     -    0s
     0     0 29286.0111    0   18 37285.0000 29286.0111  21.5%     -    0s
H    0     0                    31225.000000 29286.0111  6.21%     -    0s
     0     0 29319.2118    0   15 31225.0000 29319.2118  6.10%     -    0s
     0     0 29320.1648    0   15 31225.0000 29320.1648  6.10%     -    0s
     0     2 29321.2874    0   15 31225.0000 29321.2874  6.10%     -    0s
H   91    62                    30432.000000 29365.3075  3.51%   4.2    0s
*   92    59              35    30430.000000 29365.3075  3.50%   4.2    0s
*  195   124              36    30380.000000 29406.2238  3.21%   4.3    0s
H  600   208                    30079.000000 29560.7220  1.72%   4.4    0s
H  722   200                    29885.000000 29606.2583  0.93%   5.1    0s
*  738   173              35    29832.000000 29606.2583  0.76%   5.1    0s
H  749   163                    29815.000000 29650.3836  0.55%   5.1    0s

Cutting planes:
  Gomory: 14
  Flow cover: 54
  Flow path: 16

Explored 892 nodes (4856 simplex iterations) in 0.29 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.981500000000e+04, best bound 2.981500000000e+04, gap 0.0%