Gurobi 5.0.1 (linux64) logging started Fri Nov 16 21:59:20 2012 Optimize a model with 36035 rows, 33306 columns and 140502 nonzeros Presolve removed 930 rows and 3278 columns Presolve time: 0.97s Presolved: 35105 rows, 30028 columns, 134656 nonzeros Variable types: 0 continuous, 30028 integer (30028 binary) Found heuristic solution: objective 182.0000000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 29526 3.0000723e+00 1.072477e+02 0.000000e+00 5s 35238 3.0000787e+00 1.670767e+01 0.000000e+00 10s 36342 3.0000000e+00 0.000000e+00 0.000000e+00 11s Root relaxation: objective 3.000000e+00, 36342 iterations, 10.69 seconds Total elapsed time = 22.41s 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% - 25s Explored 0 nodes (85830 simplex iterations) in 25.03 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%