Gurobi 5.0.1 (linux64) logging started Tue Nov 20 05:57:33 2012 Optimize a model with 743 rows, 123 columns and 1486 nonzeros Presolve removed 277 rows and 0 columns Presolve time: 0.00s Presolved: 466 rows, 123 columns, 1181 nonzeros Variable types: 0 continuous, 123 integer (123 binary) Found heuristic solution: objective 33.0000000 Root relaxation: objective 4.271756e+01, 308 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 42.71756 0 122 33.00000 42.71756 29.4% - 0s 0 0 42.17700 0 121 33.00000 42.17700 27.8% - 0s 0 0 42.02544 0 123 33.00000 42.02544 27.3% - 0s H 0 0 34.0000000 42.02544 23.6% - 0s 0 0 41.96961 0 123 34.00000 41.96961 23.4% - 0s 0 0 41.89065 0 122 34.00000 41.89065 23.2% - 0s 0 0 41.80877 0 121 34.00000 41.80877 23.0% - 0s 0 0 41.78717 0 120 34.00000 41.78717 22.9% - 0s 0 0 41.60968 0 123 34.00000 41.60968 22.4% - 0s 0 0 41.54793 0 123 34.00000 41.54793 22.2% - 0s 0 0 41.50660 0 121 34.00000 41.50660 22.1% - 0s 0 0 41.38867 0 123 34.00000 41.38867 21.7% - 0s 0 0 41.35952 0 122 34.00000 41.35952 21.6% - 0s 0 0 41.34251 0 123 34.00000 41.34251 21.6% - 0s 0 0 41.29876 0 122 34.00000 41.29876 21.5% - 0s 0 0 41.24378 0 122 34.00000 41.24378 21.3% - 0s 0 0 41.14018 0 122 34.00000 41.14018 21.0% - 0s 0 0 41.11677 0 123 34.00000 41.11677 20.9% - 0s 0 0 41.11517 0 123 34.00000 41.11517 20.9% - 0s 0 0 41.11517 0 123 34.00000 41.11517 20.9% - 0s 0 2 41.11301 0 123 34.00000 41.11301 20.9% - 0s H 192 54 35.0000000 39.06897 11.6% 35.9 0s Cutting planes: Gomory: 1 Clique: 5 Zero half: 57 Explored 725 nodes (23155 simplex iterations) in 1.05 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.500000000000e+01, best bound 3.500000000000e+01, gap 0.0%