Gurobi 5.0.1 (linux64) logging started Fri Nov 16 23:50:20 2012 Optimize a model with 46892 rows, 41412 columns and 181074 nonzeros Presolve removed 814 rows and 2 columns Presolve time: 1.18s Presolved: 46281 rows, 41410 columns, 219799 nonzeros Variable types: 0 continuous, 41410 integer (41410 binary) Found heuristic solution: objective 203.0000000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 23866 3.0000806e+00 4.000000e+01 0.000000e+00 5s 29032 3.0000821e+00 3.537809e-01 0.000000e+00 10s 29229 3.0000000e+00 0.000000e+00 0.000000e+00 10s Root relaxation: objective 3.000000e+00, 29229 iterations, 10.25 seconds Total elapsed time = 32.26s Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 3.0000000 3.00000 0.0% - 34s Explored 0 nodes (85585 simplex iterations) in 34.68 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%