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

Optimize a model with 444 rows, 43 columns and 888 nonzeros
Presolve removed 303 rows and 0 columns
Presolve time: 0.00s
Presolved: 141 rows, 43 columns, 760 nonzeros
Variable types: 0 continuous, 43 integer (43 binary)
Found heuristic solution: objective 6.0000000

Root relaxation: objective 8.588477e+00, 81 iterations, 0.00 seconds

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

     0     0    8.58848    0   35    6.00000    8.58848  43.1%     -    0s
H    0     0                       7.0000000    8.58848  22.7%     -    0s
     0     0    8.15472    0   33    7.00000    8.15472  16.5%     -    0s
     0     0    8.07039    0   36    7.00000    8.07039  15.3%     -    0s
     0     0     cutoff    0         7.00000    7.99999  14.3%     -    0s

Cutting planes:
  Gomory: 1
  Clique: 19
  Zero half: 8

Explored 0 nodes (134 simplex iterations) in 0.02 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%