Gurobi 5.0.1 (linux64) logging started Fri Nov 16 23:02:18 2012 Optimize a model with 42748 rows, 39006 columns and 166266 nonzeros Presolve removed 415 rows and 3745 columns Presolve time: 1.03s Presolved: 42333 rows, 35261 columns, 161108 nonzeros Variable types: 0 continuous, 35261 integer (35261 binary) Found heuristic solution: objective 197.0000000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 29951 3.0000757e+00 2.774670e+02 0.000000e+00 5s 36001 3.0000847e+00 2.227749e+00 0.000000e+00 10s 36327 3.0000000e+00 0.000000e+00 0.000000e+00 10s Root relaxation: objective 3.000000e+00, 36327 iterations, 10.09 seconds Total elapsed time = 25.69s 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 (70917 simplex iterations) in 26.82 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%