Gurobi 5.0.1 (linux64) logging started Sat Nov 17 00:58:03 2012 Optimize a model with 45149 rows, 44310 columns and 178708 nonzeros Presolve removed 422 rows and 2 columns Presolve time: 1.16s Presolved: 44937 rows, 44308 columns, 221332 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 33223 3.0000682e+00 7.538462e+00 0.000000e+00 5s 40848 3.0000706e+00 5.818160e+00 0.000000e+00 10s 45214 3.0000000e+00 0.000000e+00 0.000000e+00 14s Root relaxation: objective 3.000000e+00, 45214 iterations, 13.84 seconds Total elapsed time = 31.72s Total elapsed time = 35.98s Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 3.00000 0 63 210.00000 3.00000 98.6% - 37s H 0 0 3.0000000 3.00000 0.0% - 38s Explored 0 nodes (103049 simplex iterations) in 38.11 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%