Gurobi 5.0.1 (linux64) logging started Mon Feb 4 19:12:30 2013 Optimize a model with 85400 rows, 6400 columns and 259200 nonzeros Presolve removed 5127 rows and 3227 columns Presolve time: 0.82s Presolved: 80273 rows, 3173 columns, 243743 nonzeros Variable types: 38 continuous, 3135 integer (3135 binary) Found heuristic solution: objective 150544.00000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 34960 1.0677045e+05 0.000000e+00 4.687845e+07 5s 44048 1.1187027e+05 0.000000e+00 0.000000e+00 6s 44048 1.1187027e+05 0.000000e+00 0.000000e+00 6s Root relaxation: objective 1.118703e+05, 44048 iterations, 5.99 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 111870.271 0 12 150544.000 111870.271 25.7% - 7s H 0 0 111885.00000 111870.271 0.01% - 7s H 0 0 111881.00000 111870.271 0.01% - 7s Explored 0 nodes (44120 simplex iterations) in 7.30 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.118810000000e+05, best bound 1.118710000000e+05, gap 0.0089%