Gurobi 5.0.1 (linux64) logging started Fri Jan 18 00:55:23 2013

Optimize a model with 360 rows, 1430 columns and 3450 nonzeros
Presolve removed 10 rows and 10 columns
Presolve time: 0.01s
Presolved: 350 rows, 1420 columns, 3240 nonzeros
Variable types: 1220 continuous, 200 integer (200 binary)

Root relaxation: objective 1.791602e+04, 129 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
     0     0 17942.2411    0    4          - 17942.2411     -      -    0s
     0     0 17948.7324    0    4          - 17948.7324     -      -    0s
     0     0 17953.0976    0    6          - 17953.0976     -      -    0s
     0     0 17955.6019    0    4          - 17955.6019     -      -    0s
     0     0 17956.0641    0    7          - 17956.0641     -      -    0s
     0     0 17956.2998    0    7          - 17956.2998     -      -    0s
     0     0 17956.2998    0    7          - 17956.2998     -      -    0s
H    0     0                    18012.413083 17956.2998  0.31%     -    0s
     0     1 17960.3753    0    4 18012.4131 17960.3753  0.29%     -    0s
*   22     3              20    17984.333761 17983.9362  0.00%   7.0    0s

Cutting planes:
  Gomory: 1
  Implied bound: 12
  Flow cover: 4

Explored 23 nodes (404 simplex iterations) in 0.09 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.798433376139e+04, best bound 1.798393623154e+04, gap 0.0022%