Gurobi 5.0.1 (linux64) logging started Fri Nov 16 21:33:15 2012 Optimize a model with 30793 rows, 30102 columns and 121617 nonzeros Presolve removed 348 rows and 2 columns Presolve time: 0.69s Presolved: 30618 rows, 30100 columns, 150329 nonzeros Variable types: 0 continuous, 30100 integer (30100 binary) Found heuristic solution: objective 173.0000000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 26110 3.0000749e+00 1.015000e+02 0.000000e+00 5s 29803 3.0000000e+00 0.000000e+00 0.000000e+00 8s Root relaxation: objective 3.000000e+00, 29803 iterations, 7.57 seconds Total elapsed time = 17.07s 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% - 19s Explored 0 nodes (71297 simplex iterations) in 19.43 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%