Gurobi 5.0.1 (linux64) logging started Mon Feb  4 16:00:46 2013

Optimize a model with 41 rows, 36 columns and 126 nonzeros
Presolve removed 22 rows and 19 columns
Presolve time: 0.00s
Presolved: 19 rows, 17 columns, 66 nonzeros
Variable types: 3 continuous, 14 integer (14 binary)
Found heuristic solution: objective 646.0000000
Found heuristic solution: objective 616.0000000

Root relaxation: objective 6.006863e+02, 6 iterations, 0.00 seconds

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

     0     0  600.68627    0    3  616.00000  600.68627  2.49%     -    0s
     0     0  605.87630    0    6  616.00000  605.87630  1.64%     -    0s
H    0     0                     607.0000000  605.87630  0.19%     -    0s

Cutting planes:
  Gomory: 1
  Cover: 1
  MIR: 4

Explored 0 nodes (23 simplex iterations) in 0.00 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 6.070000000000e+02, best bound 6.070000000000e+02, gap 0.0%