Gurobi 5.0.1 (linux64) logging started Fri Nov 16 23:02:46 2012 Optimize a model with 43930 rows, 39006 columns and 169812 nonzeros Presolve removed 24 rows and 4336 columns Presolve time: 0.96s Presolved: 43906 rows, 34670 columns, 165032 nonzeros Variable types: 0 continuous, 34670 integer (34670 binary) Found heuristic solution: objective 197.0000000 Root relaxation: objective 2.000000e+00, 25099 iterations, 2.00 seconds Total elapsed time = 5.77s Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 2.00000 0 342 197.00000 2.00000 99.0% - 6s H 0 0 154.0000000 2.00000 98.7% - 6s H 0 0 4.0000000 2.00000 50.0% - 6s 0 0 2.66667 0 3577 4.00000 2.66667 33.3% - 20s 0 0 2.66667 0 11439 4.00000 2.66667 33.3% - 32s H 0 0 3.0000000 2.66667 11.1% - 48s Cutting planes: Clique: 2 Zero half: 30 Explored 0 nodes (110981 simplex iterations) in 48.91 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%