Gurobi 5.0.1 (linux64) logging started Fri Nov 16 22:14:08 2012 Optimize a model with 37399 rows, 35156 columns and 146419 nonzeros Presolve removed 1149 rows and 4677 columns Presolve time: 0.90s Presolved: 36250 rows, 30479 columns, 138551 nonzeros Variable types: 0 continuous, 30479 integer (30479 binary) Found heuristic solution: objective 187.0000000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 26825 3.0000689e+00 1.491898e+01 0.000000e+00 5s 30541 3.0000000e+00 0.000000e+00 0.000000e+00 8s Root relaxation: objective 3.000000e+00, 30541 iterations, 7.84 seconds 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% - 16s Explored 0 nodes (56087 simplex iterations) in 16.27 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%