Gurobi 5.0.1 (linux64) logging started Fri Nov 16 23:14:25 2012 Optimize a model with 41381 rows, 39402 columns and 162556 nonzeros Presolve removed 2 rows and 2 columns Presolve time: 0.96s Presolved: 41577 rows, 39400 columns, 201342 nonzeros Variable types: 0 continuous, 39400 integer (39400 binary) Found heuristic solution: objective 198.0000000 Root relaxation: objective 2.000000e+00, 26177 iterations, 2.13 seconds Total elapsed time = 5.50s Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 2.00000 0 326 198.00000 2.00000 99.0% - 6s H 0 0 182.0000000 2.00000 98.9% - 6s H 0 0 4.0000000 2.00000 50.0% - 6s H 0 0 3.0000000 2.00000 33.3% - 6s 0 0 infeasible 0 3.00000 2.00000 33.3% - 6s Cutting planes: Gomory: 2 Zero half: 39 Explored 0 nodes (81818 simplex iterations) in 6.72 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%