Gurobi 5.0.1 (linux64) logging started Sat Nov 17 00:52:21 2012 Optimize a model with 53759 rows, 44310 columns and 204538 nonzeros Presolve removed 1705 rows and 4832 columns Presolve time: 4.01s Presolved: 52054 rows, 39478 columns, 195012 nonzeros Variable types: 0 continuous, 39478 integer (39478 binary) Found heuristic solution: objective 210.0000000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 22382 3.0000796e+00 1.628571e+01 0.000000e+00 5s 26904 3.0000838e+00 1.042743e+01 0.000000e+00 10s 31293 3.0000880e+00 1.157869e+01 0.000000e+00 15s 35682 3.0000941e+00 8.751179e+00 0.000000e+00 20s 39399 3.0000000e+00 0.000000e+00 0.000000e+00 25s Root relaxation: objective 3.000000e+00, 39399 iterations, 24.52 seconds Total elapsed time = 32.61s Total elapsed time = 35.57s 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% - 36s Explored 0 nodes (111953 simplex iterations) in 36.39 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%