Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:08:24 2012 Optimize a model with 449 rows, 429 columns and 1549 nonzeros Presolve removed 0 rows and 19 columns Presolve time: 0.00s Presolved: 449 rows, 410 columns, 1530 nonzeros Variable types: 0 continuous, 410 integer (409 binary) Found heuristic solution: objective 84.0000000 Root relaxation: objective 0.000000e+00, 252 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 0 177 84.00000 0.00000 100% - 0s H 0 0 61.0000000 0.00000 100% - 0s H 0 0 60.0000000 0.00000 100% - 0s H 0 0 58.0000000 0.00000 100% - 0s 0 0 0.25761 0 179 58.00000 0.25761 100% - 0s H 0 0 56.0000000 0.25761 100% - 0s 0 0 0.86343 0 183 56.00000 0.86343 98.5% - 0s H 0 0 52.0000000 0.86343 98.3% - 0s 0 0 0.86343 0 185 52.00000 0.86343 98.3% - 0s 0 0 0.86343 0 185 52.00000 0.86343 98.3% - 0s H 0 0 44.0000000 0.86343 98.0% - 0s H 0 0 40.0000000 0.86343 97.8% - 0s H 0 0 38.0000000 0.86343 97.7% - 0s H 0 0 37.0000000 0.86343 97.7% - 0s 0 2 0.87009 0 185 37.00000 0.87009 97.6% - 0s H 27 27 27.0000000 1.90508 92.9% 33.3 0s * 43 34 24 16.0000000 1.90508 88.1% 29.2 0s * 70 32 19 14.0000000 1.90637 86.4% 29.0 0s * 129 42 33 13.0000000 4.00000 69.2% 29.6 0s Cutting planes: Gomory: 3 Mod-K: 1 Explored 361 nodes (11234 simplex iterations) in 0.49 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.300000000000e+01, best bound 1.300000000000e+01, gap 0.0%