Gurobi 5.0.1 (linux64) logging started Thu Jan 17 23:43:33 2013

Optimize a model with 190 rows, 1170 columns and 2410 nonzeros
Presolve removed 20 rows and 30 columns
Presolve time: 0.00s
Presolved: 170 rows, 1140 columns, 2280 nonzeros
Variable types: 1100 continuous, 40 integer (40 binary)

Root relaxation: objective 1.836170e+04, 107 iterations, 0.00 seconds

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

     0     0 18361.7044    0    1          - 18361.7044     -      -    0s
     0     0 18380.4740    0    4          - 18380.4740     -      -    0s
     0     0 18381.4009    0    3          - 18381.4009     -      -    0s
     0     0 18381.8672    0    3          - 18381.8672     -      -    0s
     0     0 18381.8672    0    3          - 18381.8672     -      -    0s
H    0     0                    18420.834144 18381.8672  0.21%     -    0s
*    0     0               0    18416.528090 18416.5281   0.0%     -    0s

Cutting planes:
  Gomory: 1
  Flow cover: 4

Explored 1 nodes (158 simplex iterations) in 0.04 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.841652809024e+04, best bound 1.841652809024e+04, gap 0.0%