Gurobi 5.0.1 (linux64) logging started Fri Nov 16 03:18:22 2012
Optimize a model with 3731 rows, 1722 columns and 12751 nonzeros
Presolve removed 1026 rows and 41 columns
Presolve time: 0.08s
Presolved: 2705 rows, 1681 columns, 10291 nonzeros
Variable types: 0 continuous, 1681 integer (1681 binary)
Found heuristic solution: objective 27.0000000
Root relaxation: objective 3.000000e+00, 3205 iterations, 0.25 seconds
Nodes | Current Node | Objective Bounds | Work
Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time
0 0 3.00000 0 73 27.00000 3.00000 88.9% - 0s
H 0 0 5.0000000 3.00000 40.0% - 0s
0 0 3.00000 0 151 5.00000 3.00000 40.0% - 0s
H 0 0 4.0000000 3.00000 25.0% - 0s
0 0 3.00000 0 106 4.00000 3.00000 25.0% - 1s
0 0 3.00000 0 69 4.00000 3.00000 25.0% - 1s
0 0 3.00000 0 99 4.00000 3.00000 25.0% - 2s
0 0 3.00000 0 69 4.00000 3.00000 25.0% - 3s
0 0 3.00000 0 77 4.00000 3.00000 25.0% - 3s
0 0 3.00000 0 75 4.00000 3.00000 25.0% - 4s
0 0 3.00000 0 112 4.00000 3.00000 25.0% - 4s
0 0 3.00000 0 102 4.00000 3.00000 25.0% - 5s
0 0 3.00000 0 86 4.00000 3.00000 25.0% - 6s
0 0 3.00000 0 106 4.00000 3.00000 25.0% - 6s
0 0 3.00000 0 106 4.00000 3.00000 25.0% - 7s
0 2 3.00000 0 40 4.00000 3.00000 25.0% - 7s
7 6 3.00000 1 44 4.00000 3.00000 25.0% 104 10s
13 10 3.00000 1 81 4.00000 3.00000 25.0% 55.8 15s
Cutting planes:
Gomory: 3
Zero half: 1
Explored 18 nodes (132716 simplex iterations) in 16.27 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%