Gurobi 5.0.1 (linux64) logging started Tue Nov 20 07:15:27 2012 Optimize a model with 1115 rows, 151 columns and 2230 nonzeros Presolve removed 412 rows and 0 columns Presolve time: 0.01s Presolved: 703 rows, 151 columns, 1827 nonzeros Variable types: 0 continuous, 151 integer (151 binary) Found heuristic solution: objective 32.0000000 Root relaxation: objective 4.977394e+01, 432 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 49.77394 0 149 32.00000 49.77394 55.5% - 0s 0 0 49.36154 0 149 32.00000 49.36154 54.3% - 0s H 0 0 33.0000000 49.36154 49.6% - 0s 0 0 49.03406 0 151 33.00000 49.03406 48.6% - 0s 0 0 48.75029 0 151 33.00000 48.75029 47.7% - 0s 0 0 48.65707 0 150 33.00000 48.65707 47.4% - 0s 0 0 48.55262 0 151 33.00000 48.55262 47.1% - 0s 0 0 48.37001 0 150 33.00000 48.37001 46.6% - 0s 0 0 48.29108 0 151 33.00000 48.29108 46.3% - 0s 0 0 48.22965 0 151 33.00000 48.22965 46.2% - 0s 0 0 48.11068 0 151 33.00000 48.11068 45.8% - 0s 0 0 48.05868 0 150 33.00000 48.05868 45.6% - 0s 0 0 48.00350 0 151 33.00000 48.00350 45.5% - 0s 0 0 47.90216 0 150 33.00000 47.90216 45.2% - 0s 0 0 47.87456 0 151 33.00000 47.87456 45.1% - 0s 0 0 47.83773 0 150 33.00000 47.83773 45.0% - 0s 0 0 47.79950 0 150 33.00000 47.79950 44.8% - 0s 0 0 47.67978 0 150 33.00000 47.67978 44.5% - 0s 0 0 47.65732 0 151 33.00000 47.65732 44.4% - 0s 0 0 47.61976 0 151 33.00000 47.61976 44.3% - 0s H 0 0 34.0000000 47.61976 40.1% - 0s 0 0 47.47866 0 151 34.00000 47.47866 39.6% - 0s 0 0 47.40372 0 151 34.00000 47.40372 39.4% - 0s 0 0 47.35560 0 151 34.00000 47.35560 39.3% - 0s 0 0 47.33423 0 151 34.00000 47.33423 39.2% - 0s 0 0 47.33165 0 151 34.00000 47.33165 39.2% - 0s 0 0 47.33165 0 150 34.00000 47.33165 39.2% - 0s 0 2 47.33165 0 150 34.00000 47.33165 39.2% - 0s * 11 11 8 37.0000000 47.33165 27.9% 108 0s 609 251 41.24938 9 151 37.00000 44.39207 20.0% 51.5 5s 1758 666 39.87500 29 97 37.00000 43.17943 16.7% 53.5 10s 3738 1410 39.30682 25 98 37.00000 41.94048 13.4% 44.3 15s 6712 1909 38.71264 36 98 37.00000 40.72934 10.1% 38.6 20s 10200 1723 39.28205 34 99 37.00000 39.73529 7.39% 35.3 25s Cutting planes: Gomory: 5 Clique: 2 Zero half: 57 Explored 14008 nodes (453853 simplex iterations) in 29.90 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.700000000000e+01, best bound 3.700000000000e+01, gap 0.0%