Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:43:15 2012

Optimize a model with 505 rows, 45 columns and 1010 nonzeros
Presolve removed 358 rows and 0 columns
Presolve time: 0.01s
Presolved: 147 rows, 45 columns, 803 nonzeros
Variable types: 0 continuous, 45 integer (45 binary)
Found heuristic solution: objective 6.0000000

Root relaxation: objective 8.641404e+00, 83 iterations, 0.00 seconds

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

     0     0    8.64140    0   39    6.00000    8.64140  44.0%     -    0s
     0     0    8.29097    0   41    6.00000    8.29097  38.2%     -    0s
     0     0    8.24633    0   42    6.00000    8.24633  37.4%     -    0s
     0     0    8.15023    0   40    6.00000    8.15023  35.8%     -    0s
H    0     0                       7.0000000    8.15023  16.4%     -    0s
     0     0    8.11060    0   40    7.00000    8.11060  15.9%     -    0s
     0     0    8.06146    0   40    7.00000    8.06146  15.2%     -    0s
     0     0    8.04564    0   41    7.00000    8.04564  14.9%     -    0s
     0     0    8.00247    0   40    7.00000    8.00247  14.3%     -    0s

Cutting planes:
  Clique: 16
  Zero half: 11

Explored 0 nodes (272 simplex iterations) in 0.04 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%