Gurobi 5.0.1 (linux64) logging started Fri Jan 18 00:15:46 2013

Optimize a model with 220 rows, 1380 columns and 3490 nonzeros
Presolve removed 10 rows and 130 columns
Presolve time: 0.00s
Presolved: 210 rows, 1250 columns, 3290 nonzeros
Variable types: 1210 continuous, 40 integer (40 binary)

Root relaxation: objective 1.836170e+04, 130 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    2          - 18361.7044     -      -    0s
     0     0 18368.8765    0    4          - 18368.8765     -      -    0s
     0     0 18368.9671    0    5          - 18368.9671     -      -    0s
     0     0 18370.3182    0    4          - 18370.3182     -      -    0s
     0     0 18370.3182    0    4          - 18370.3182     -      -    0s
H    0     0                    18422.415846 18370.3182  0.28%     -    0s
H    0     0                    18417.639282 18370.3182  0.26%     -    0s
     0     1 18396.6524    0    7 18417.6393 18396.6524  0.11%     -    0s

Cutting planes:
  Gomory: 1
  Flow cover: 2

Explored 2 nodes (305 simplex iterations) in 0.04 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.841763928198e+04, best bound 1.841763928198e+04, gap 0.0%