Gurobi 5.0.1 (linux64) logging started Sat Nov 17 00:47:09 2012 Optimize a model with 46606 rows, 43890 columns and 182664 nonzeros Presolve removed 838 rows and 2 columns Presolve time: 1.15s Presolved: 45977 rows, 43888 columns, 223817 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 29959 3.0000756e+00 1.757968e+02 0.000000e+00 5s 34747 3.0000808e+00 7.446158e+00 0.000000e+00 10s 37015 3.0000000e+00 0.000000e+00 0.000000e+00 13s Root relaxation: objective 3.000000e+00, 37015 iterations, 12.62 seconds Total elapsed time = 39.56s Total elapsed time = 40.62s 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% - 41s Explored 0 nodes (93420 simplex iterations) in 41.20 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%