Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:10:39 2012

Optimize a model with 101 rows, 95 columns and 345 nonzeros
Presolve removed 0 rows and 1 columns
Presolve time: 0.00s
Presolved: 101 rows, 94 columns, 344 nonzeros
Variable types: 0 continuous, 94 integer (93 binary)
Found heuristic solution: objective 17.0000000

Root relaxation: objective 0.000000e+00, 58 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   17.00000    0.00000   100%     -    0s
H    0     0                      11.0000000    0.00000   100%     -    0s
H    0     0                      10.0000000    0.00000   100%     -    0s
H    0     0                       9.0000000    0.00000   100%     -    0s
     0     0    0.69161    0   43    9.00000    0.69161  92.3%     -    0s
     0     0    0.92083    0   46    9.00000    0.92083  89.8%     -    0s
H    0     0                       6.0000000    0.92083  84.7%     -    0s
H    0     0                       5.0000000    0.92083  81.6%     -    0s
     0     0    0.92240    0   46    5.00000    0.92240  81.6%     -    0s
     0     0    0.92240    0   46    5.00000    0.92240  81.6%     -    0s
     0     2    1.00000    0   46    5.00000    1.00000  80.0%     -    0s
*    5     4               4       4.0000000    1.97432  50.6%  15.0    0s

Cutting planes:
  Gomory: 3
  Zero half: 2

Explored 12 nodes (383 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%