Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:43:23 2012

Optimize a model with 779 rows, 55 columns and 1558 nonzeros
Presolve removed 546 rows and 0 columns
Presolve time: 0.02s
Presolved: 233 rows, 55 columns, 1389 nonzeros
Variable types: 0 continuous, 55 integer (55 binary)
Found heuristic solution: objective 5.0000000

Root relaxation: objective 9.492105e+00, 127 iterations, 0.00 seconds

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

     0     0    9.49211    0   45    5.00000    9.49211  89.8%     -    0s
H    0     0                       6.0000000    9.49211  58.2%     -    0s
H    0     0                       7.0000000    9.49211  35.6%     -    0s
     0     0    9.01690    0   50    7.00000    9.01690  28.8%     -    0s
     0     0    8.86209    0   52    7.00000    8.86209  26.6%     -    0s
     0     0    8.84554    0   53    7.00000    8.84554  26.4%     -    0s
     0     0    8.83674    0   53    7.00000    8.83674  26.2%     -    0s
     0     0    8.81715    0   52    7.00000    8.81715  26.0%     -    0s
     0     0    8.81351    0   53    7.00000    8.81351  25.9%     -    0s
     0     0    8.81227    0   53    7.00000    8.81227  25.9%     -    0s
     0     2    8.81141    0   53    7.00000    8.81141  25.9%     -    0s

Cutting planes:
  Clique: 25
  Zero half: 4

Explored 12 nodes (666 simplex iterations) in 0.12 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%