Gurobi 5.0.1 (linux64) logging started Sat Nov 17 00:09:54 2012 Optimize a model with 45304 rows, 42230 columns and 177118 nonzeros Presolve removed 412 rows and 2 columns Presolve time: 1.09s Presolved: 45097 rows, 42228 columns, 217680 nonzeros Variable types: 0 continuous, 42228 integer (42228 binary) Found heuristic solution: objective 205.0000000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 26305 3.0000821e+00 1.036940e+02 0.000000e+00 5s 31055 3.0000868e+00 8.606215e+01 0.000000e+00 10s 34381 3.0000000e+00 0.000000e+00 0.000000e+00 14s Root relaxation: objective 3.000000e+00, 34381 iterations, 13.52 seconds Total elapsed time = 39.28s Total elapsed time = 40.39s Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 3.00000 0 66 205.00000 3.00000 98.5% - 41s H 0 0 3.0000000 3.00000 0.0% - 41s Explored 0 nodes (86101 simplex iterations) in 41.15 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%