Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:43:14 2012

Optimize a model with 456 rows, 43 columns and 912 nonzeros
Presolve removed 308 rows and 0 columns
Presolve time: 0.01s
Presolved: 148 rows, 43 columns, 768 nonzeros
Variable types: 0 continuous, 43 integer (43 binary)
Found heuristic solution: objective 7.0000000

Root relaxation: objective 8.426958e+00, 92 iterations, 0.00 seconds

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

     0     0    8.42696    0   38    7.00000    8.42696  20.4%     -    0s
     0     0     cutoff    0         7.00000    7.99999  14.3%     -    0s

Cutting planes:
  Clique: 13
  Zero half: 19

Explored 0 nodes (113 simplex iterations) in 0.01 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 7.000000000000e+00, best bound 7.000000000000e+00, gap 0.0%