Gurobi 5.0.1 (linux64) logging started Thu Jan 24 18:24:41 2013 Optimize a model with 5 rows, 250 columns and 1250 nonzeros Presolve time: 0.00s Presolved: 5 rows, 250 columns, 1250 nonzeros Variable types: 0 continuous, 250 integer (250 binary) Found heuristic solution: objective 149977.00000 Root relaxation: objective 1.552099e+05, 21 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 155209.924 0 5 149977.000 155209.924 3.49% - 0s H 0 0 154942.00000 155209.924 0.17% - 0s 0 0 155204.271 0 9 154942.000 155204.271 0.17% - 0s 0 0 155204.271 0 5 154942.000 155204.271 0.17% - 0s 0 0 155204.271 0 9 154942.000 155204.271 0.17% - 0s 0 0 155200.154 0 9 154942.000 155200.154 0.17% - 0s H 0 0 155035.00000 155200.154 0.11% - 0s 0 2 155195.623 0 9 155035.000 155195.623 0.10% - 0s H 600 428 155055.00000 155184.698 0.08% 2.2 0s H11343 6122 155061.00000 155152.595 0.06% 2.4 0s H39708 14707 155075.00000 155130.258 0.04% 2.3 1s Cutting planes: Gomory: 3 Cover: 2 MIR: 3 Zero half: 1 Explored 104102 nodes (236615 simplex iterations) in 4.53 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.550750000000e+05, best bound 1.550900000000e+05, gap 0.0097%