Gurobi 5.0.1 (linux64) logging started Mon Nov 19 09:05:55 2012 Optimize a model with 6602 rows, 162 columns and 13204 nonzeros Presolve removed 4826 rows and 0 columns Presolve time: 0.28s Presolved: 1776 rows, 162 columns, 13266 nonzeros Variable types: 0 continuous, 162 integer (162 binary) Found heuristic solution: objective 9.0000000 Root relaxation: objective 1.989879e+01, 761 iterations, 0.07 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 19.89879 0 160 9.00000 19.89879 121% - 0s H 0 0 10.0000000 19.89879 99.0% - 0s 0 0 19.29351 0 161 10.00000 19.29351 92.9% - 0s 0 0 19.16946 0 162 10.00000 19.16946 91.7% - 0s 0 0 19.08214 0 161 10.00000 19.08214 90.8% - 1s H 0 0 11.0000000 19.08214 73.5% - 1s 0 0 19.03633 0 160 11.00000 19.03633 73.1% - 1s 0 0 19.00850 0 162 11.00000 19.00850 72.8% - 1s 0 0 18.97823 0 162 11.00000 18.97823 72.5% - 1s 0 0 18.94121 0 162 11.00000 18.94121 72.2% - 2s 0 0 18.92048 0 162 11.00000 18.92048 72.0% - 2s 0 0 18.91786 0 162 11.00000 18.91786 72.0% - 2s 0 0 18.90898 0 162 11.00000 18.90898 71.9% - 2s 0 0 18.90298 0 162 11.00000 18.90298 71.8% - 2s 0 0 18.89780 0 162 11.00000 18.89780 71.8% - 3s 0 0 18.89429 0 162 11.00000 18.89429 71.8% - 3s 0 0 18.89411 0 162 11.00000 18.89411 71.8% - 3s 0 0 18.89403 0 162 11.00000 18.89403 71.8% - 3s 0 0 18.89399 0 162 11.00000 18.89399 71.8% - 4s 0 2 18.89383 0 162 11.00000 18.89383 71.8% - 4s 10 12 17.65374 10 151 11.00000 18.89383 71.8% 209 5s 420 224 13.84380 22 79 11.00000 16.32679 48.4% 110 10s 601 242 12.38841 24 162 11.00000 15.09393 37.2% 102 17s 612 251 15.09393 14 161 11.00000 15.09393 37.2% 103 20s 680 293 15.09393 48 125 11.00000 15.09393 37.2% 138 25s 1290 213 13.37978 32 69 11.00000 13.88728 26.2% 106 30s 1655 102 12.52920 18 45 11.00000 12.71259 15.6% 93.3 35s Cutting planes: Clique: 71 Explored 1791 nodes (159120 simplex iterations) in 37.72 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.100000000000e+01, best bound 1.100000000000e+01, gap 0.0%