Gurobi 5.0.1 (linux64) logging started Sat Nov 17 00:55:07 2012 Optimize a model with 52709 rows, 44310 columns and 201388 nonzeros Presolve removed 1262 rows and 2 columns Presolve time: 1.39s Presolved: 51657 rows, 44308 columns, 241848 nonzeros Variable types: 0 continuous, 44308 integer (44308 binary) Found heuristic solution: objective 210.0000000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 32377 3.0001274e+00 9.181538e+02 0.000000e+00 5s 39095 3.0002389e+00 2.955556e+01 0.000000e+00 10s 44149 3.0002716e+00 1.332000e+02 0.000000e+00 15s 45543 3.0000000e+00 0.000000e+00 0.000000e+00 17s Root relaxation: objective 3.000000e+00, 45543 iterations, 16.71 seconds Total elapsed time = 38.86s Total elapsed time = 42.98s 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% - 44s Explored 0 nodes (102677 simplex iterations) in 44.77 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%