Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:24:10 2012 Optimize a model with 539 rows, 485 columns and 1830 nonzeros Presolve removed 0 rows and 14 columns Presolve time: 0.00s Presolved: 539 rows, 471 columns, 1816 nonzeros Variable types: 0 continuous, 471 integer (470 binary) Found heuristic solution: objective 115.0000000 Root relaxation: objective 0.000000e+00, 247 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.00000 0 186 115.00000 0.00000 100% - 0s H 0 0 79.0000000 0.00000 100% - 0s H 0 0 74.0000000 0.00000 100% - 0s H 0 0 69.0000000 0.00000 100% - 0s 0 0 0.40511 0 187 69.00000 0.40511 99.4% - 0s H 0 0 66.0000000 0.40511 99.4% - 0s 0 0 1.03103 0 189 66.00000 1.03103 98.4% - 0s H 0 0 58.0000000 1.03103 98.2% - 0s 0 0 1.03103 0 190 58.00000 1.03103 98.2% - 0s 0 0 1.03103 0 189 58.00000 1.03103 98.2% - 0s H 0 0 47.0000000 1.03103 97.8% - 0s H 0 0 46.0000000 1.03103 97.8% - 0s H 0 0 38.0000000 1.03103 97.3% - 0s H 0 0 36.0000000 1.03103 97.1% - 0s 0 2 1.03251 0 189 36.00000 1.03251 97.1% - 0s * 67 49 41 24.0000000 2.58084 89.2% 25.7 0s H 81 50 23.0000000 2.59732 88.7% 27.3 0s * 694 279 29 22.0000000 10.98013 50.1% 26.8 1s 3050 82 20.48052 22 194 22.00000 18.97959 13.7% 23.9 5s Cutting planes: Gomory: 2 Explored 3228 nodes (77507 simplex iterations) in 5.26 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.200000000000e+01, best bound 2.200000000000e+01, gap 0.0%