Gurobi 5.0.1 (linux64) logging started Fri Nov 16 22:47:28 2012 Optimize a model with 42485 rows, 37830 columns and 164316 nonzeros Presolve removed 797 rows and 3688 columns Presolve time: 1.05s Presolved: 41688 rows, 34142 columns, 158260 nonzeros Variable types: 0 continuous, 34142 integer (34142 binary) Found heuristic solution: objective 194.0000000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 22702 3.0000749e+00 2.576330e+01 0.000000e+00 5s 27382 3.0000809e+00 1.341982e+01 0.000000e+00 10s 31363 3.0000000e+00 0.000000e+00 0.000000e+00 13s Root relaxation: objective 3.000000e+00, 31363 iterations, 13.11 seconds Total elapsed time = 28.79s Total elapsed time = 31.28s 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% - 32s Explored 0 nodes (84142 simplex iterations) in 32.85 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%