Gurobi 5.0.1 (linux64) logging started Fri Nov 16 23:29:30 2012 Optimize a model with 42199 rows, 40200 columns and 165798 nonzeros Presolve removed 402 rows and 2 columns Presolve time: 1.03s Presolved: 41997 rows, 40198 columns, 204380 nonzeros Variable types: 0 continuous, 40198 integer (40198 binary) Found heuristic solution: objective 200.0000000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 30055 3.0000762e+00 4.345771e+01 0.000000e+00 5s 36226 3.0000810e+00 5.539233e+00 0.000000e+00 10s 36878 3.0000000e+00 0.000000e+00 0.000000e+00 11s Root relaxation: objective 3.000000e+00, 36878 iterations, 10.60 seconds Total elapsed time = 33.93s Total elapsed time = 36.42s Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 3.00000 0 48 200.00000 3.00000 98.5% - 36s H 0 0 4.0000000 3.00000 25.0% - 37s H 0 0 3.0000000 3.00000 0.0% - 37s Explored 0 nodes (85701 simplex iterations) in 37.12 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%