Gurobi 5.0.1 (linux64) logging started Fri Nov 16 12:44:45 2012
Optimize a model with 18071 rows, 5256 columns and 59110 nonzeros
Presolve removed 2 rows and 2 columns
Presolve time: 0.65s
Presolved: 18141 rows, 5254 columns, 63792 nonzeros
Variable types: 0 continuous, 5254 integer (5254 binary)
Found heuristic solution: objective 71.0000000
Root relaxation: objective 2.000000e+00, 3910 iterations, 0.16 seconds
Nodes | Current Node | Objective Bounds | Work
Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time
0 0 2.00000 0 144 71.00000 2.00000 97.2% - 1s
H 0 0 64.0000000 2.00000 96.9% - 1s
H 0 0 5.0000000 2.00000 60.0% - 1s
0 0 2.66667 0 783 5.00000 2.66667 46.7% - 7s
0 0 2.66667 0 3168 5.00000 2.66667 46.7% - 7s
H 0 0 4.0000000 2.66667 33.3% - 10s
0 0 2.66667 0 258 4.00000 2.66667 33.3% - 14s
0 0 2.67308 0 4055 4.00000 2.67308 33.2% - 16s
0 0 2.67308 0 4087 4.00000 2.67308 33.2% - 18s
0 0 2.67308 0 3992 4.00000 2.67308 33.2% - 21s
0 0 2.67308 0 4049 4.00000 2.67308 33.2% - 22s
0 0 2.67308 0 4053 4.00000 2.67308 33.2% - 24s
0 0 2.67308 0 4046 4.00000 2.67308 33.2% - 27s
0 0 2.67308 0 4037 4.00000 2.67308 33.2% - 29s
0 0 2.67308 0 4063 4.00000 2.67308 33.2% - 31s
0 0 2.67308 0 4042 4.00000 2.67308 33.2% - 33s
0 0 2.67308 0 4061 4.00000 2.67308 33.2% - 34s
0 0 2.67308 0 4061 4.00000 2.67308 33.2% - 35s
0 1 3.00000 0 4061 4.00000 3.00000 25.0% - 51s
Cutting planes:
Clique: 150
Zero half: 6
Explored 6 nodes (79431 simplex iterations) in 52.28 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%