Gurobi 5.0.1 (linux64) logging started Fri Jan 18 02:46:21 2013

Optimize a model with 56 rows, 260 columns and 1930 nonzeros
Presolve removed 22 rows and 33 columns
Presolve time: 0.00s
Presolved: 34 rows, 227 columns, 1666 nonzeros
Variable types: 213 continuous, 14 integer (14 binary)

Root relaxation: objective 5.420106e+03, 12 iterations, 0.00 seconds

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

     0     0 5420.10604    0    3          - 5420.10604     -      -    0s
     0     0 5424.00412    0    4          - 5424.00412     -      -    0s
     0     0 5440.75322    0    3          - 5440.75322     -      -    0s
     0     0 5441.26807    0    3          - 5441.26807     -      -    0s
     0     0 5441.26807    0    3          - 5441.26807     -      -    0s
H    0     0                    5462.0498296 5441.26807  0.38%     -    0s
     0     0 5441.26807    0    2 5462.04983 5441.26807  0.38%     -    0s
     0     0 5441.31886    0    4 5462.04983 5441.31886  0.38%     -    0s
     0     0 5441.33129    0    4 5462.04983 5441.33129  0.38%     -    0s
H    0     0                    5442.4749060 5441.33129  0.02%     -    0s
     0     2 5441.61315    0    3 5442.47491 5441.61315  0.02%     -    0s
*    5     1               3    5441.6169227 5441.61692   0.0%   3.8    0s

Cutting planes:
  Gomory: 1
  Cover: 1
  Implied bound: 2
  Flow cover: 2

Explored 6 nodes (81 simplex iterations) in 0.05 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 5.441616922670e+03, best bound 5.441616922670e+03, gap 0.0%