Gurobi 5.0.1 (linux64) logging started Sat Nov 17 00:46:33 2012 Optimize a model with 48278 rows, 43890 columns and 187680 nonzeros Presolve removed 420 rows and 2 columns Presolve time: 1.17s Presolved: 48067 rows, 43888 columns, 229858 nonzeros Variable types: 0 continuous, 43888 integer (43888 binary) Found heuristic solution: objective 209.0000000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 25911 3.0000779e+00 3.065000e+01 0.000000e+00 5s 30511 3.0000000e+00 0.000000e+00 0.000000e+00 9s Root relaxation: objective 3.000000e+00, 30511 iterations, 9.28 seconds Total elapsed time = 31.49s 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% - 35s Explored 0 nodes (75771 simplex iterations) in 35.41 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%