Gurobi 5.0.1 (linux64) logging started Fri Nov 16 23:57:38 2012 Optimize a model with 42227 rows, 41820 columns and 167482 nonzeros Presolve removed 1226 rows and 2 columns Presolve time: 1.03s Presolved: 41205 rows, 41818 columns, 205636 nonzeros Variable types: 0 continuous, 41818 integer (41818 binary) Found heuristic solution: objective 204.0000000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 28063 3.0000842e+00 5.922222e+00 0.000000e+00 5s 30562 3.0000000e+00 0.000000e+00 0.000000e+00 7s Root relaxation: objective 3.000000e+00, 30562 iterations, 7.22 seconds Total elapsed time = 34.00s Total elapsed time = 35.48s 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% - 37s Explored 0 nodes (93837 simplex iterations) in 37.95 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%