Gurobi 5.0.1 (linux64) logging started Fri Nov 16 22:53:26 2012 Optimize a model with 37829 rows, 38220 columns and 150733 nonzeros Presolve removed 782 rows and 2 columns Presolve time: 1.03s Presolved: 37242 rows, 38218 columns, 186428 nonzeros Variable types: 0 continuous, 38218 integer (38218 binary) Found heuristic solution: objective 195.0000000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 22494 3.0000716e+00 3.016219e+00 0.000000e+00 5s 23331 3.0000000e+00 0.000000e+00 0.000000e+00 6s Root relaxation: objective 3.000000e+00, 23331 iterations, 5.62 seconds Total elapsed time = 24.09s Total elapsed time = 25.74s 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% - 28s Explored 0 nodes (71249 simplex iterations) in 28.35 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%