Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:06:15 2012

Optimize a model with 397 rows, 401 columns and 1391 nonzeros
Presolve removed 0 rows and 30 columns
Presolve time: 0.00s
Presolved: 397 rows, 371 columns, 1361 nonzeros
Variable types: 0 continuous, 371 integer (370 binary)
Found heuristic solution: objective 73.0000000

Root relaxation: objective 0.000000e+00, 243 iterations, 0.00 seconds

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

     0     0    0.00000    0  164   73.00000    0.00000   100%     -    0s
H    0     0                      65.0000000    0.00000   100%     -    0s
H    0     0                      51.0000000    0.00000   100%     -    0s
H    0     0                      48.0000000    0.00000   100%     -    0s
     0     0    0.25930    0  166   48.00000    0.25930  99.5%     -    0s
H    0     0                      47.0000000    0.25930  99.4%     -    0s
     0     0    0.77323    0  171   47.00000    0.77323  98.4%     -    0s
     0     0    0.77382    0  172   47.00000    0.77382  98.4%     -    0s
H    0     0                      46.0000000    0.77382  98.3%     -    0s
     0     2    0.77402    0  172   46.00000    0.77402  98.3%     -    0s
H   27    27                      12.0000000    0.97322  91.9%  43.6    0s
H   31    16                       8.0000000    0.97322  87.8%  43.5    0s

Cutting planes:
  Gomory: 4
  Zero half: 3
  Mod-K: 1

Explored 181 nodes (8519 simplex iterations) in 0.33 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%