Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:22:45 2012

Optimize a model with 231 rows, 250 columns and 825 nonzeros
Presolve removed 0 rows and 22 columns
Presolve time: 0.00s
Presolved: 231 rows, 228 columns, 803 nonzeros
Variable types: 0 continuous, 228 integer (227 binary)
Found heuristic solution: objective 37.0000000

Root relaxation: objective 0.000000e+00, 153 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  100   37.00000    0.00000   100%     -    0s
H    0     0                      23.0000000    0.00000   100%     -    0s
H    0     0                      19.0000000    0.00000   100%     -    0s
     0     0    0.32039    0  102   19.00000    0.32039  98.3%     -    0s
H    0     0                      18.0000000    0.32039  98.2%     -    0s
     0     0    0.75185    0  111   18.00000    0.75185  95.8%     -    0s
H    0     0                      17.0000000    0.75185  95.6%     -    0s
     0     0    0.75185    0  113   17.00000    0.75185  95.6%     -    0s
     0     0    0.75185    0  106   17.00000    0.75185  95.6%     -    0s
H    0     0                      14.0000000    0.75185  94.6%     -    0s
H    0     0                      12.0000000    0.75185  93.7%     -    0s
     0     2    0.76912    0  106   12.00000    0.76912  93.6%     -    0s
H   54    13                       4.0000000    1.56076  61.0%  16.8    0s
*   68     0               7       3.0000000    3.00000   0.0%  16.0    0s

Cutting planes:
  Gomory: 3
  Zero half: 3

Explored 69 nodes (1770 simplex iterations) in 0.08 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.000000000000e+00, best bound 3.000000000000e+00, gap 0.0%