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

Optimize a model with 704 rows, 52 columns and 1408 nonzeros
Presolve removed 503 rows and 0 columns
Presolve time: 0.01s
Presolved: 201 rows, 52 columns, 1204 nonzeros
Variable types: 0 continuous, 52 integer (52 binary)
Found heuristic solution: objective 7.0000000

Root relaxation: objective 8.674945e+00, 108 iterations, 0.00 seconds

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

     0     0    8.67494    0   48    7.00000    8.67494  23.9%     -    0s
     0     0    8.31807    0   51    7.00000    8.31807  18.8%     -    0s
     0     0    8.24815    0   50    7.00000    8.24815  17.8%     -    0s
     0     0    8.21497    0   50    7.00000    8.21497  17.4%     -    0s
     0     0    8.21344    0   50    7.00000    8.21344  17.3%     -    0s
     0     0    8.20958    0   49    7.00000    8.20958  17.3%     -    0s
     0     0    8.20150    0   51    7.00000    8.20150  17.2%     -    0s
     0     0    8.19373    0   51    7.00000    8.19373  17.1%     -    0s
     0     0    8.18406    0   52    7.00000    8.18406  16.9%     -    0s
     0     0    8.18362    0   52    7.00000    8.18362  16.9%     -    0s
     0     2    8.18258    0   52    7.00000    8.18258  16.9%     -    0s

Cutting planes:
  Clique: 21
  Zero half: 9

Explored 5 nodes (367 simplex iterations) in 0.09 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%