Gurobi 5.0.1 (linux64) logging started Mon Nov 19 09:20:18 2012 Optimize a model with 6707 rows, 164 columns and 13414 nonzeros Presolve removed 4836 rows and 0 columns Presolve time: 0.29s Presolved: 1871 rows, 164 columns, 13800 nonzeros Variable types: 0 continuous, 164 integer (164 binary) Found heuristic solution: objective 9.0000000 Root relaxation: objective 2.018094e+01, 743 iterations, 0.07 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 20.18094 0 161 9.00000 20.18094 124% - 0s 0 0 19.58145 0 162 9.00000 19.58145 118% - 0s H 0 0 10.0000000 19.58145 95.8% - 0s 0 0 19.42843 0 163 10.00000 19.42843 94.3% - 0s 0 0 19.35960 0 163 10.00000 19.35960 93.6% - 1s 0 0 19.29986 0 163 10.00000 19.29986 93.0% - 1s 0 0 19.27232 0 163 10.00000 19.27232 92.7% - 1s 0 0 19.19257 0 164 10.00000 19.19257 91.9% - 1s 0 0 19.17456 0 164 10.00000 19.17456 91.7% - 2s 0 0 19.16896 0 164 10.00000 19.16896 91.7% - 2s 0 0 19.16674 0 164 10.00000 19.16674 91.7% - 2s 0 0 19.16458 0 164 10.00000 19.16458 91.6% - 2s 0 0 19.16341 0 164 10.00000 19.16341 91.6% - 3s 0 0 19.16262 0 164 10.00000 19.16262 91.6% - 3s 0 0 19.16246 0 164 10.00000 19.16246 91.6% - 3s 0 2 19.16109 0 164 10.00000 19.16109 91.6% - 4s 46 48 14.59520 46 112 10.00000 19.15402 91.5% 126 5s 521 326 13.76122 17 67 10.00000 17.47046 74.7% 86.4 10s 601 367 11.87366 20 164 10.00000 17.08573 70.9% 86.1 16s 616 379 15.62135 17 88 10.00000 17.08573 70.9% 90.1 20s 704 438 11.64104 61 52 10.00000 15.61871 56.2% 130 25s 1282 500 14.00445 26 73 10.00000 14.98647 49.9% 101 30s 1713 487 11.05556 32 38 10.00000 14.36501 43.7% 86.2 35s 1973 544 11.46667 30 36 10.00000 14.07899 40.8% 81.0 40s 2540 601 12.13851 49 62 10.00000 13.40247 34.0% 74.7 45s 3156 427 12.03455 62 55 10.00000 12.31064 23.1% 69.6 50s Cutting planes: Clique: 65 Explored 3870 nodes (238844 simplex iterations) in 52.42 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.000000000000e+01, best bound 1.000000000000e+01, gap 0.0%