Gurobi 5.0.1 (linux64) logging started Sat Nov 17 01:41:06 2012 Optimize a model with 48374 rows, 46440 columns and 190488 nonzeros Presolve removed 1749 rows and 5807 columns Presolve time: 1.30s Presolved: 46625 rows, 40633 columns, 179949 nonzeros Variable types: 0 continuous, 40633 integer (40633 binary) Found heuristic solution: objective 215.0000000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 24065 3.0000802e+00 2.998956e+02 0.000000e+00 5s 29682 3.0000000e+00 0.000000e+00 0.000000e+00 9s Root relaxation: objective 3.000000e+00, 29682 iterations, 8.99 seconds Total elapsed time = 21.79s Total elapsed time = 25.13s 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% - 26s Explored 0 nodes (102620 simplex iterations) in 26.72 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%