Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:45:08 2012

Optimize a model with 1758 rows, 85 columns and 3516 nonzeros
Presolve removed 1252 rows and 0 columns
Presolve time: 0.05s
Presolved: 506 rows, 85 columns, 3187 nonzeros
Variable types: 0 continuous, 85 integer (85 binary)
Found heuristic solution: objective 5.0000000

Root relaxation: objective 1.331991e+01, 313 iterations, 0.01 seconds

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

     0     0   13.31991    0   78    5.00000   13.31991   166%     -    0s
H    0     0                       6.0000000   13.31991   122%     -    0s
H    0     0                       8.0000000   13.31991  66.5%     -    0s
     0     0   12.91912    0   85    8.00000   12.91912  61.5%     -    0s
     0     0   12.74578    0   82    8.00000   12.74578  59.3%     -    0s
     0     0   12.69871    0   83    8.00000   12.69871  58.7%     -    0s
     0     0   12.67324    0   83    8.00000   12.67324  58.4%     -    0s
     0     0   12.66483    0   83    8.00000   12.66483  58.3%     -    0s
H    0     0                       9.0000000   12.66483  40.7%     -    0s
     0     0   12.66141    0   82    9.00000   12.66141  40.7%     -    0s
     0     0   12.66128    0   82    9.00000   12.66128  40.7%     -    0s
     0     0   12.65868    0   83    9.00000   12.65868  40.7%     -    0s
     0     2   12.65618    0   83    9.00000   12.65618  40.6%     -    0s

Cutting planes:
  Clique: 46
  Zero half: 7

Explored 61 nodes (5028 simplex iterations) in 0.56 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 9.000000000000e+00, best bound 9.000000000000e+00, gap 0.0%