Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:09:39 2012

Optimize a model with 75 rows, 72 columns and 257 nonzeros
Presolve removed 0 rows and 1 columns
Presolve time: 0.00s
Presolved: 75 rows, 71 columns, 256 nonzeros
Variable types: 0 continuous, 71 integer (70 binary)
Found heuristic solution: objective 18.0000000

Root relaxation: objective 0.000000e+00, 45 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   33   18.00000    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                       7.0000000    0.00000   100%     -    0s
     0     0    0.62500    0   34    7.00000    0.62500  91.1%     -    0s
H    0     0                       4.0000000    0.62500  84.4%     -    0s
     0     0    1.00000    0   26    4.00000    1.00000  75.0%     -    0s
     0     0    1.00000    0   36    4.00000    1.00000  75.0%     -    0s
     0     0    1.00000    0   36    4.00000    1.00000  75.0%     -    0s
H    0     0                       3.0000000    1.00000  66.7%     -    0s
     0     2    1.00000    0   36    3.00000    1.00000  66.7%     -    0s

Cutting planes:
  Gomory: 3
  Mod-K: 4

Explored 12 nodes (479 simplex iterations) in 0.03 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%