Gurobi 5.0.1 (linux64) logging started Tue Nov 20 08:16:42 2012 Optimize a model with 1258 rows, 158 columns and 2516 nonzeros Presolve removed 510 rows and 0 columns Presolve time: 0.01s Presolved: 748 rows, 158 columns, 2012 nonzeros Variable types: 0 continuous, 158 integer (158 binary) Found heuristic solution: objective 29.0000000 Root relaxation: objective 5.062884e+01, 440 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 50.62884 0 157 29.00000 50.62884 74.6% - 0s H 0 0 30.0000000 50.62884 68.8% - 0s H 0 0 32.0000000 50.62884 58.2% - 0s 0 0 50.26836 0 157 32.00000 50.26836 57.1% - 0s 0 0 50.16358 0 158 32.00000 50.16358 56.8% - 0s 0 0 50.02192 0 157 32.00000 50.02192 56.3% - 0s 0 0 49.91360 0 158 32.00000 49.91360 56.0% - 0s 0 0 49.78056 0 158 32.00000 49.78056 55.6% - 0s 0 0 49.66961 0 158 32.00000 49.66961 55.2% - 0s 0 0 49.55071 0 158 32.00000 49.55071 54.8% - 0s 0 0 49.45427 0 158 32.00000 49.45427 54.5% - 0s 0 0 49.43231 0 158 32.00000 49.43231 54.5% - 0s 0 0 49.39190 0 158 32.00000 49.39190 54.3% - 0s 0 0 49.35946 0 158 32.00000 49.35946 54.2% - 0s 0 0 49.34040 0 158 32.00000 49.34040 54.2% - 0s 0 0 49.18628 0 158 32.00000 49.18628 53.7% - 0s 0 0 49.17876 0 158 32.00000 49.17876 53.7% - 0s 0 0 49.17871 0 157 32.00000 49.17871 53.7% - 0s 0 0 49.10143 0 157 32.00000 49.10143 53.4% - 0s 0 0 49.05521 0 158 32.00000 49.05521 53.3% - 0s 0 0 48.95940 0 157 32.00000 48.95940 53.0% - 0s 0 0 48.86258 0 158 32.00000 48.86258 52.7% - 0s 0 0 48.75816 0 158 32.00000 48.75816 52.4% - 0s 0 0 48.72725 0 158 32.00000 48.72725 52.3% - 0s 0 0 48.60234 0 158 32.00000 48.60234 51.9% - 0s 0 0 48.58361 0 158 32.00000 48.58361 51.8% - 0s 0 0 48.55012 0 158 32.00000 48.55012 51.7% - 0s H 0 0 34.0000000 48.55012 42.8% - 0s 0 0 48.52788 0 158 34.00000 48.52788 42.7% - 0s 0 0 48.51281 0 158 34.00000 48.51281 42.7% - 0s 0 0 48.46847 0 158 34.00000 48.46847 42.6% - 0s 0 0 48.45949 0 158 34.00000 48.45949 42.5% - 0s 0 0 48.45941 0 158 34.00000 48.45941 42.5% - 0s 0 0 48.45941 0 158 34.00000 48.45941 42.5% - 0s 0 2 48.45652 0 157 34.00000 48.45652 42.5% - 1s H 273 146 35.0000000 46.53325 33.0% 54.4 1s H 492 242 36.0000000 45.74419 27.1% 52.2 2s 605 311 37.44444 15 158 36.00000 45.68407 26.9% 50.7 5s 1289 544 43.68987 25 131 36.00000 45.68407 26.9% 61.1 10s 2818 1435 37.88889 33 89 36.00000 43.92249 22.0% 51.9 15s 5117 2708 39.48571 22 96 36.00000 42.99297 19.4% 46.1 20s 7658 3924 40.18750 23 96 36.00000 42.33333 17.6% 43.2 25s 10412 5069 37.50000 36 89 36.00000 41.82036 16.2% 41.3 30s 13347 6128 37.57447 40 103 36.00000 41.48276 15.2% 39.6 35s 17422 7460 38.00000 46 104 36.00000 41.07692 14.1% 37.9 40s 21523 8501 39.32500 31 97 36.00000 40.68797 13.0% 36.7 45s 25894 9368 cutoff 34 36.00000 40.36000 12.1% 35.6 50s 29934 10041 38.25000 30 77 36.00000 40.09195 11.4% 34.8 55s 34647 10618 cutoff 39 36.00000 39.81522 10.6% 33.9 60s 39450 10887 37.73265 32 91 36.00000 39.57143 9.92% 33.2 65s 41008 10884 37.50000 37 75 36.00000 39.50000 9.72% 33.0 87s 43507 10876 37.41379 28 82 36.00000 39.37500 9.38% 32.7 90s 48238 10718 37.17308 25 81 36.00000 39.15000 8.75% 32.2 95s 51487 10411 37.00000 29 62 36.00000 39.00000 8.33% 31.9 100s 56538 9715 37.04000 34 86 36.00000 38.75926 7.66% 31.5 105s 61614 8376 cutoff 31 36.00000 38.50000 6.94% 31.1 110s 66946 6482 37.16667 31 81 36.00000 38.21429 6.15% 30.7 115s 72812 3262 cutoff 34 36.00000 37.83333 5.09% 30.2 120s Cutting planes: Gomory: 5 Clique: 6 Zero half: 51 Explored 77349 nodes (2270749 simplex iterations) in 122.59 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.600000000000e+01, best bound 3.600000000000e+01, gap 0.0%