Gurobi 5.0.1 (linux64) logging started Sat Nov 17 03:36:45 2012 Optimize a model with 58648 rows, 49952 columns and 224782 nonzeros Presolve removed 468 rows and 4462 columns Presolve time: 1.59s Presolved: 58180 rows, 45490 columns, 218685 nonzeros Variable types: 0 continuous, 45490 integer (45490 binary) Found heuristic solution: objective 223.0000000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 35575 3.0000695e+00 5.148296e+02 0.000000e+00 5s 42884 3.0001205e+00 1.064349e+03 0.000000e+00 10s 46384 3.0001426e+00 3.056584e+02 0.000000e+00 15s 50024 3.0001536e+00 1.754373e+02 0.000000e+00 20s 53804 3.0001603e+00 3.132310e+02 0.000000e+00 25s 57584 3.0001684e+00 1.957615e+01 0.000000e+00 30s 60944 3.0001742e+00 2.053439e+01 0.000000e+00 35s 64164 3.0001797e+00 1.580057e+01 0.000000e+00 40s 67244 3.0001857e+00 8.041623e+01 0.000000e+00 45s 70324 3.0001898e+00 7.860173e+01 0.000000e+00 50s 72859 3.0000000e+00 0.000000e+00 0.000000e+00 55s Root relaxation: objective 3.000000e+00, 72859 iterations, 54.50 seconds Total elapsed time = 96.51s Total elapsed time = 100.54s 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% - 102s Explored 0 nodes (150654 simplex iterations) in 102.05 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%