Gurobi 5.0.1 (linux64) logging started Fri Jan 18 02:46:23 2013

Optimize a model with 1070 rows, 1260 columns and 4505 nonzeros
Presolve removed 15 rows and 10 columns
Presolve time: 0.06s
Presolved: 1055 rows, 1250 columns, 3490 nonzeros
Variable types: 755 continuous, 495 integer (495 binary)

Root relaxation: objective 1.291780e+04, 397 iterations, 0.00 seconds

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

     0     0 12917.7960    0    1          - 12917.7960     -      -    0s
     0     0 12965.5638    0    2          - 12965.5638     -      -    0s
H    0     0                    12965.577381 12965.5638  0.00%     -    0s

Cutting planes:
  Gomory: 1
  Flow cover: 1

Explored 0 nodes (480 simplex iterations) in 0.09 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.296557738136e+04, best bound 1.296556383725e+04, gap 0.0001%