Gurobi 5.0.1 (linux64) logging started Fri Nov 16 23:26:28 2012 Optimize a model with 40599 rows, 40200 columns and 160998 nonzeros Presolve removed 430 rows and 5602 columns Presolve time: 1.01s Presolved: 40169 rows, 34598 columns, 153996 nonzeros Variable types: 0 continuous, 34598 integer (34598 binary) Found heuristic solution: objective 200.0000000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 30372 3.0000732e+00 2.494812e+01 0.000000e+00 5s 36036 3.0000811e+00 2.146429e+02 0.000000e+00 10s 36567 3.0000000e+00 0.000000e+00 0.000000e+00 11s Root relaxation: objective 3.000000e+00, 36567 iterations, 10.51 seconds Total elapsed time = 23.14s 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% - 24s Explored 0 nodes (78008 simplex iterations) in 25.00 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%