Gurobi 5.0.1 (linux64) logging started Fri Jan 18 04:02:37 2013

Optimize a model with 216 rows, 413 columns and 1425 nonzeros
Presolve removed 36 rows and 60 columns
Presolve time: 0.01s
Presolved: 180 rows, 353 columns, 1058 nonzeros
Variable types: 177 continuous, 176 integer (176 binary)
Found heuristic solution: objective 3502.0000000

Root relaxation: objective 3.498620e+03, 6 iterations, 0.00 seconds

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

     0     0 3498.61993    0    2 3502.00000 3498.61993  0.10%     -    0s
     0     0 3499.49865    0    2 3502.00000 3499.49865  0.07%     -    0s
     0     0 3500.35423    0    2 3502.00000 3500.35423  0.05%     -    0s
     0     0 3501.18770    0    2 3502.00000 3501.18770  0.02%     -    0s
     0     0     cutoff    0      3502.00000 3502.00000   0.0%     -    0s

Explored 0 nodes (21 simplex iterations) in 0.05 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.502000000000e+03, best bound 3.502000000000e+03, gap 0.0%