Gurobi 5.0.1 (linux64) logging started Fri Nov 16 20:53:35 2012 Optimize a model with 18299 rows, 22650 columns and 76798 nonzeros Presolve removed 2 rows and 2 columns Presolve time: 0.33s Presolved: 18447 rows, 22648 columns, 99054 nonzeros Variable types: 0 continuous, 22648 integer (22648 binary) Found heuristic solution: objective 150.0000000 Root relaxation: objective 2.000000e+00, 12900 iterations, 0.58 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 2.00000 0 202 150.00000 2.00000 98.7% - 2s H 0 0 100.0000000 2.00000 98.0% - 2s H 0 0 3.0000000 2.00000 33.3% - 2s 0 0 infeasible 0 3.00000 2.00000 33.3% - 2s Cutting planes: Gomory: 2 Zero half: 7 Explored 0 nodes (41207 simplex iterations) in 2.12 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%