Gurobi 5.0.1 (linux64) logging started Fri Nov 16 23:28:37 2012 Optimize a model with 41799 rows, 40200 columns and 164598 nonzeros Presolve removed 2 rows and 2 columns Presolve time: 0.97s Presolved: 41997 rows, 40198 columns, 204180 nonzeros Variable types: 0 continuous, 40198 integer (40198 binary) Found heuristic solution: objective 200.0000000 Root relaxation: objective 2.000000e+00, 26336 iterations, 2.06 seconds Total elapsed time = 5.79s Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 2.00000 0 344 200.00000 2.00000 99.0% - 6s H 0 0 179.0000000 2.00000 98.9% - 6s H 0 0 4.0000000 2.00000 50.0% - 6s 0 0 2.66667 0 1921 4.00000 2.66667 33.3% - 17s 0 0 2.66892 0 12022 4.00000 2.66892 33.3% - 24s H 0 0 3.0000000 2.66892 11.0% - 24s Cutting planes: Clique: 4 Zero half: 31 Explored 0 nodes (108255 simplex iterations) in 24.91 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%