Gurobi 5.0.1 (linux64) logging started Sat Nov 17 00:02:43 2012 Optimize a model with 49404 rows, 42230 columns and 189418 nonzeros Presolve removed 437 rows and 5127 columns Presolve time: 1.21s Presolved: 48967 rows, 37103 columns, 182790 nonzeros Variable types: 0 continuous, 37103 integer (37103 binary) Found heuristic solution: objective 205.0000000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 29869 3.0000718e+00 2.028675e+02 0.000000e+00 5s 34642 3.0000772e+00 7.454390e+02 0.000000e+00 10s 38899 3.0000800e+00 8.281710e+00 0.000000e+00 15s 40960 3.0000000e+00 0.000000e+00 0.000000e+00 17s Root relaxation: objective 3.000000e+00, 40960 iterations, 17.33 seconds Total elapsed time = 38.98s Total elapsed time = 46.20s 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% - 48s Explored 0 nodes (109068 simplex iterations) in 48.08 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%