Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:10:24 2012

Optimize a model with 93 rows, 89 columns and 319 nonzeros
Presolve removed 0 rows and 1 columns
Presolve time: 0.00s
Presolved: 93 rows, 88 columns, 318 nonzeros
Variable types: 0 continuous, 88 integer (87 binary)
Found heuristic solution: objective 22.0000000

Root relaxation: objective 0.000000e+00, 54 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   41   22.00000    0.00000   100%     -    0s
H    0     0                      13.0000000    0.00000   100%     -    0s
H    0     0                      10.0000000    0.00000   100%     -    0s
H    0     0                       8.0000000    0.00000   100%     -    0s
     0     0    0.39645    0   43    8.00000    0.39645  95.0%     -    0s
H    0     0                       6.0000000    0.39645  93.4%     -    0s
     0     0    0.88013    0   45    6.00000    0.88013  85.3%     -    0s
     0     0    0.88933    0   46    6.00000    0.88933  85.2%     -    0s
     0     2    0.90601    0   46    6.00000    0.90601  84.9%     -    0s
*   20    10              15       5.0000000    1.90107  62.0%  10.2    0s
*   33     6               5       4.0000000    2.31591  42.1%  10.2    0s

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

Explored 40 nodes (594 simplex iterations) in 0.04 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.000000000000e+00, best bound 4.000000000000e+00, gap 0.0%