Gurobi 5.0.1 (linux64) logging started Fri Nov 16 22:22:12 2012 Optimize a model with 36665 rows, 35910 columns and 144961 nonzeros Presolve removed 785 rows and 5105 columns Presolve time: 0.90s Presolved: 35880 rows, 30805 columns, 137588 nonzeros Variable types: 0 continuous, 30805 integer (30805 binary) Found heuristic solution: objective 189.0000000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 23380 3.0000716e+00 4.072230e+00 0.000000e+00 5s 25236 3.0000000e+00 0.000000e+00 0.000000e+00 6s Root relaxation: objective 3.000000e+00, 25236 iterations, 6.38 seconds Total elapsed time = 16.39s Total elapsed time = 20.60s 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% - 21s Explored 0 nodes (71013 simplex iterations) in 21.28 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%