Gurobi 5.0.1 (linux64) logging started Fri Nov 16 22:04:06 2012 Optimize a model with 34775 rows, 34040 columns and 137446 nonzeros Presolve removed 766 rows and 5154 columns Presolve time: 0.83s Presolved: 34009 rows, 28886 columns, 130084 nonzeros Variable types: 0 continuous, 28886 integer (28886 binary) Found heuristic solution: objective 184.0000000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 24505 3.0000675e+00 6.770335e-01 0.000000e+00 5s 24670 3.0000000e+00 0.000000e+00 0.000000e+00 5s Root relaxation: objective 3.000000e+00, 24670 iterations, 5.15 seconds Total elapsed time = 19.02s Total elapsed time = 20.34s Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 3.00000 0 38 184.00000 3.00000 98.4% - 20s H 0 0 3.0000000 3.00000 0.0% - 20s Explored 0 nodes (63122 simplex iterations) in 20.58 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%