Gurobi 5.0.1 (linux64) logging started Thu Jan 17 23:16:19 2013

Optimize a model with 140 rows, 1050 columns and 2100 nonzeros
Presolve removed 10 rows and 10 columns
Presolve time: 0.00s
Presolved: 160 rows, 1060 columns, 2130 nonzeros
Variable types: 1040 continuous, 20 integer (20 binary)

Root relaxation: objective 1.791602e+04, 101 iterations, 0.00 seconds

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

     0     0 17916.0191    0    6          - 17916.0191     -      -    0s
H    0     0                    18174.157348 17916.0191  1.42%     -    0s
H    0     0                    17975.828949 17916.0191  0.33%     -    0s
     0     0 17960.2516    0    2 17975.8289 17960.2516  0.09%     -    0s

Cutting planes:
  Gomory: 2
  Flow cover: 1

Explored 0 nodes (140 simplex iterations) in 0.01 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.797582894874e+04, best bound 1.797582894874e+04, gap 0.0%