Gurobi 5.0.1 (linux64) logging started Fri Jan 18 05:26:22 2013

Optimize a model with 2028 rows, 2044 columns and 8082 nonzeros
Presolve removed 1992 rows and 1998 columns
Presolve time: 0.13s
Presolved: 36 rows, 46 columns, 140 nonzeros
Variable types: 30 continuous, 16 integer (16 binary)

Root relaxation: objective 7.659086e+03, 20 iterations, 0.00 seconds

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

     0     0 7659.08578    0    1          - 7659.08578     -      -    0s
H    0     0                    7664.6454259 7659.08578  0.07%     -    0s
     0     0     cutoff    0      7664.64543 7664.64543   0.0%     -    0s

Cutting planes:
  Implied bound: 1
  Flow cover: 2

Explored 0 nodes (26 simplex iterations) in 0.14 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 7.664645425899e+03, best bound 7.664645425899e+03, gap 0.0%