Gurobi 5.0.1 (linux64) logging started Fri Nov 16 23:18:03 2012 Optimize a model with 43381 rows, 39800 columns and 168949 nonzeros Presolve removed 1419 rows and 4778 columns Presolve time: 1.13s Presolved: 41962 rows, 35022 columns, 160368 nonzeros Variable types: 0 continuous, 35022 integer (35022 binary) Found heuristic solution: objective 199.0000000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 24218 3.0000789e+00 1.340707e+01 0.000000e+00 5s 28937 3.0000846e+00 2.545277e+01 0.000000e+00 10s 33777 3.0000905e+00 1.129457e+01 0.000000e+00 15s 36078 3.0000000e+00 0.000000e+00 0.000000e+00 17s Root relaxation: objective 3.000000e+00, 36078 iterations, 17.19 seconds Total elapsed time = 41.10s Total elapsed time = 49.60s 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% - 51s Explored 0 nodes (104742 simplex iterations) in 51.30 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%