Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:43:24 2012

Optimize a model with 805 rows, 56 columns and 1610 nonzeros
Presolve removed 558 rows and 0 columns
Presolve time: 0.01s
Presolved: 247 rows, 56 columns, 1460 nonzeros
Variable types: 0 continuous, 56 integer (56 binary)
Found heuristic solution: objective 6.0000000

Root relaxation: objective 9.564207e+00, 134 iterations, 0.00 seconds

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

     0     0    9.56421    0   51    6.00000    9.56421  59.4%     -    0s
H    0     0                       7.0000000    9.56421  36.6%     -    0s
     0     0    9.21979    0   54    7.00000    9.21979  31.7%     -    0s
     0     0    9.18119    0   52    7.00000    9.18119  31.2%     -    0s
     0     0    9.15709    0   53    7.00000    9.15709  30.8%     -    0s
     0     0    9.15252    0   54    7.00000    9.15252  30.8%     -    0s
     0     0    9.15195    0   53    7.00000    9.15195  30.7%     -    0s
     0     0    9.14957    0   55    7.00000    9.14957  30.7%     -    0s
     0     0    9.14249    0   54    7.00000    9.14249  30.6%     -    0s
H    0     0                       8.0000000    9.14249  14.3%     -    0s
     0     0    9.14208    0   53    8.00000    9.14208  14.3%     -    0s
     0     0    9.14173    0   53    8.00000    9.14173  14.3%     -    0s
     0     2    9.13827    0   53    8.00000    9.13827  14.2%     -    0s

Cutting planes:
  Clique: 21
  Zero half: 7

Explored 3 nodes (367 simplex iterations) in 0.13 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 8.000000000000e+00, best bound 8.000000000000e+00, gap 0.0%