Gurobi 5.0.1 (linux64) logging started Sat Dec  8 10:29:58 2012

Optimize a model with 3255 rows, 3240 columns and 11814 nonzeros
Presolve removed 561 rows and 142 columns
Presolve time: 0.02s
Presolved: 2694 rows, 3098 columns, 10627 nonzeros
Variable types: 2769 continuous, 329 integer (329 binary)

Root relaxation: objective 1.219671e+05, 534 iterations, 0.01 seconds

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

     0     0 121967.077    0   20          - 121967.077     -      -    0s
H    0     0                    125563.00000 121967.077  2.86%     -    0s
H    0     0                    122737.00000 121967.077  0.63%     -    0s
     0     0 121983.468    0   33 122737.000 121983.468  0.61%     -    0s
     0     0 121990.212    0   25 122737.000 121990.212  0.61%     -    0s
     0     0 121994.913    0   36 122737.000 121994.913  0.60%     -    0s
     0     0 121998.525    0   33 122737.000 121998.525  0.60%     -    0s
     0     0 122001.876    0   36 122737.000 122001.876  0.60%     -    0s
     0     0 122004.663    0   31 122737.000 122004.663  0.60%     -    0s
     0     2 122004.978    0   31 122737.000 122004.978  0.60%     -    0s
H   45    35                    122366.00000 122040.096  0.27%   7.1    0s
*   49    33              41    122343.00000 122040.096  0.25%   6.6    0s
H  109    51                    122236.00000 122054.126  0.15%   5.3    0s
H  608    71                    122226.00000 122184.510  0.03%   5.5    0s

Cutting planes:
  Gomory: 2
  Implied bound: 2
  Flow cover: 15

Explored 708 nodes (4275 simplex iterations) in 0.85 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.222260000000e+05, best bound 1.222138125878e+05, gap 0.0100%