Gurobi 5.0.1 (linux64) logging started Fri Nov 16 03:28:48 2012
Optimize a model with 4514 rows, 1892 columns and 15220 nonzeros
Presolve removed 1077 rows and 2 columns
Presolve time: 0.10s
Presolved: 3480 rows, 1890 columns, 14415 nonzeros
Variable types: 0 continuous, 1890 integer (1890 binary)
Found heuristic solution: objective 43.0000000
Root relaxation: objective 3.000000e+00, 3268 iterations, 0.31 seconds
Nodes | Current Node | Objective Bounds | Work
Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time
0 0 3.00000 0 50 43.00000 3.00000 93.0% - 1s
H 0 0 21.0000000 3.00000 85.7% - 1s
H 0 0 18.0000000 3.00000 83.3% - 1s
H 0 0 5.0000000 3.00000 40.0% - 1s
0 0 3.00000 0 110 5.00000 3.00000 40.0% - 1s
H 0 0 4.0000000 3.00000 25.0% - 1s
0 0 3.00000 0 107 4.00000 3.00000 25.0% - 2s
0 0 3.00000 0 187 4.00000 3.00000 25.0% - 3s
0 0 3.00000 0 104 4.00000 3.00000 25.0% - 4s
0 0 3.00000 0 68 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 78 4.00000 3.00000 25.0% - 7s
0 0 3.00000 0 107 4.00000 3.00000 25.0% - 8s
0 0 3.00000 0 100 4.00000 3.00000 25.0% - 9s
0 0 3.00000 0 86 4.00000 3.00000 25.0% - 10s
0 0 3.00000 0 124 4.00000 3.00000 25.0% - 11s
0 0 3.00000 0 112 4.00000 3.00000 25.0% - 12s
0 2 3.00000 0 112 4.00000 3.00000 25.0% - 13s
4 4 3.00000 1 88 4.00000 3.00000 25.0% 633 15s
8 7 3.00000 1 126 4.00000 3.00000 25.0% 317 22s
11 11 3.00000 14 104 4.00000 3.00000 25.0% 4168 26s
14 12 3.00000 15 1063 4.00000 3.00000 25.0% 3404 40s
Cutting planes:
Gomory: 10
Zero half: 5
Explored 23 nodes (138151 simplex iterations) in 44.34 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%