Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:43:28 2012

Optimize a model with 893 rows, 59 columns and 1786 nonzeros
Presolve removed 645 rows and 0 columns
Presolve time: 0.01s
Presolved: 248 rows, 59 columns, 1501 nonzeros
Variable types: 0 continuous, 59 integer (59 binary)
Found heuristic solution: objective 5.0000000

Root relaxation: objective 9.834421e+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    9.83442    0   56    5.00000    9.83442  96.7%     -    0s
H    0     0                       6.0000000    9.83442  63.9%     -    0s
     0     0    9.61255    0   55    6.00000    9.61255  60.2%     -    0s
H    0     0                       7.0000000    9.61255  37.3%     -    0s
     0     0    9.55936    0   54    7.00000    9.55936  36.6%     -    0s
     0     0    9.52354    0   57    7.00000    9.52354  36.1%     -    0s
     0     0    9.49453    0   55    7.00000    9.49453  35.6%     -    0s
     0     0    9.48047    0   57    7.00000    9.48047  35.4%     -    0s
     0     0    9.47328    0   57    7.00000    9.47328  35.3%     -    0s
     0     0    9.46950    0   56    7.00000    9.46950  35.3%     -    0s
     0     0    9.46386    0   57    7.00000    9.46386  35.2%     -    0s
     0     0    9.46361    0   57    7.00000    9.46361  35.2%     -    0s
     0     2    9.46296    0   57    7.00000    9.46296  35.2%     -    0s

Cutting planes:
  Clique: 28
  Zero half: 12

Explored 25 nodes (1326 simplex iterations) in 0.15 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%