Gurobi 5.0.1 (linux64) logging started Sat Nov 17 08:20:23 2012 Optimize a model with 67397 rows, 57360 columns and 258357 nonzeros Presolve removed 504 rows and 5738 columns Presolve time: 1.79s Presolved: 66893 rows, 51622 columns, 250866 nonzeros Variable types: 0 continuous, 51622 integer (51622 binary) Found heuristic solution: objective 239.0000000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 27711 3.0000918e+00 1.695607e+01 0.000000e+00 5s 31287 3.0000947e+00 6.427620e+01 0.000000e+00 10s 34565 3.0000975e+00 7.320313e+01 0.000000e+00 15s 37843 3.0000998e+00 1.265670e+02 0.000000e+00 20s 41270 3.0001024e+00 5.030556e+01 0.000000e+00 25s 44846 3.0001058e+00 1.022727e+01 0.000000e+00 30s 48571 3.0001122e+00 5.839662e+00 0.000000e+00 35s 50640 3.0000000e+00 0.000000e+00 0.000000e+00 38s Root relaxation: objective 3.000000e+00, 50640 iterations, 38.29 seconds Total elapsed time = 93.26s Total elapsed time = 95.41s 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% - 95s Explored 0 nodes (133133 simplex iterations) in 95.85 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%