Gurobi 5.0.1 (linux64) logging started Sat Nov 17 00:13:53 2012 Optimize a model with 46349 rows, 42642 columns and 180660 nonzeros Presolve removed 434 rows and 4122 columns Presolve time: 1.22s Presolved: 45915 rows, 38520 columns, 175064 nonzeros Variable types: 0 continuous, 38520 integer (38520 binary) Found heuristic solution: objective 206.0000000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 32422 3.0000895e+00 2.700000e+01 0.000000e+00 5s 40518 3.0001071e+00 2.549094e+01 0.000000e+00 10s 45684 3.0001109e+00 5.808168e+01 0.000000e+00 15s 47256 3.0000000e+00 0.000000e+00 0.000000e+00 17s Root relaxation: objective 3.000000e+00, 47256 iterations, 16.62 seconds Total elapsed time = 41.91s 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% - 43s Explored 0 nodes (94327 simplex iterations) in 43.30 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%