Gurobi 5.0.1 (linux64) logging started Fri Nov 16 23:21:09 2012 Optimize a model with 41789 rows, 39800 columns and 164173 nonzeros Presolve removed 798 rows and 2 columns Presolve time: 1.02s Presolved: 41190 rows, 39798 columns, 201372 nonzeros Variable types: 0 continuous, 39798 integer (39798 binary) Found heuristic solution: objective 199.0000000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 28274 3.0000766e+00 1.517931e+02 0.000000e+00 5s 33314 3.0000828e+00 1.747953e+02 0.000000e+00 10s 36638 3.0000000e+00 0.000000e+00 0.000000e+00 13s Root relaxation: objective 3.000000e+00, 36638 iterations, 13.29 seconds Total elapsed time = 37.69s Total elapsed time = 41.18s Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 3.00000 0 102 199.00000 3.00000 98.5% - 44s H 0 0 3.0000000 3.00000 0.0% - 44s Explored 0 nodes (103038 simplex iterations) in 44.27 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%