Gurobi 5.0.1 (linux64) logging started Sat Nov 17 05:12:02 2012 Optimize a model with 65435 rows, 52212 columns and 247378 nonzeros Presolve removed 1843 rows and 3878 columns Presolve time: 5.03s Presolved: 63592 rows, 48334 columns, 238384 nonzeros Variable types: 0 continuous, 48334 integer (48334 binary) Found heuristic solution: objective 228.0000000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 31839 3.0000934e+00 8.916667e+01 0.000000e+00 5s 35927 3.0000958e+00 4.759064e+01 0.000000e+00 10s 39285 3.0000994e+00 1.974534e+01 0.000000e+00 15s 42789 3.0001039e+00 1.357000e+01 0.000000e+00 20s 46147 3.0001081e+00 4.828620e+00 0.000000e+00 25s 48223 3.0000000e+00 0.000000e+00 0.000000e+00 28s Root relaxation: objective 3.000000e+00, 48223 iterations, 28.05 seconds Total elapsed time = 96.54s Total elapsed time = 100.02s 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% - 100s Explored 0 nodes (137541 simplex iterations) in 100.21 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%