Gurobi 5.0.1 (linux64) logging started Mon Feb  4 16:02:57 2013

Optimize a model with 424 rows, 3816 columns and 114732 nonzeros
Presolve removed 41 rows and 148 columns
Presolve time: 0.49s
Presolved: 383 rows, 3668 columns, 108485 nonzeros
Variable types: 0 continuous, 3668 integer (3668 binary)
Found heuristic solution: objective 2619.0000000
Found heuristic solution: objective 2148.0000000

Root relaxation: objective 1.488750e+03, 621 iterations, 0.04 seconds

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

     0     0 1488.75000    0   21 2148.00000 1488.75000  30.7%     -    0s
     0     0 1491.71429    0   41 2148.00000 1491.71429  30.6%     -    0s
H    0     0                    1507.0000000 1491.71429  1.01%     -    0s
H    0     0                    1503.0000000 1491.71429  0.75%     -    0s
*    0     0               0    1494.0000000 1494.00000   0.0%     -    0s

Cutting planes:
  Gomory: 1
  Clique: 5
  Zero half: 26

Explored 0 nodes (877 simplex iterations) in 0.83 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.494000000000e+03, best bound 1.494000000000e+03, gap 0.0%