Gurobi 5.0.1 (linux64) logging started Fri Nov 16 22:50:10 2012 Optimize a model with 38804 rows, 38220 columns and 153658 nonzeros Presolve removed 423 rows and 6047 columns Presolve time: 1.03s Presolved: 38381 rows, 32173 columns, 146244 nonzeros Variable types: 0 continuous, 32173 integer (32173 binary) Found heuristic solution: objective 195.0000000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 23212 3.0000766e+00 3.327586e+01 0.000000e+00 5s 29488 3.0000000e+00 0.000000e+00 0.000000e+00 9s Root relaxation: objective 3.000000e+00, 29488 iterations, 9.48 seconds Total elapsed time = 31.98s Total elapsed time = 35.01s Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 3.00000 0 366 195.00000 3.00000 98.5% - 39s H 0 0 3.0000000 3.00000 0.0% - 39s Explored 0 nodes (95111 simplex iterations) in 39.74 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%