Gurobi 5.0.1 (linux64) logging started Mon Nov 19 16:28:03 2012 Optimize a model with 9254 rows, 193 columns and 18508 nonzeros Presolve removed 6704 rows and 0 columns Presolve time: 0.47s Presolved: 2550 rows, 193 columns, 19113 nonzeros Variable types: 0 continuous, 193 integer (193 binary) Found heuristic solution: objective 8.0000000 Root relaxation: objective 2.304718e+01, 1083 iterations, 0.13 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 23.04718 0 190 8.00000 23.04718 188% - 0s 0 0 22.30648 0 193 8.00000 22.30648 179% - 1s 0 0 22.16791 0 191 8.00000 22.16791 177% - 1s 0 0 22.06992 0 192 8.00000 22.06992 176% - 1s H 0 0 9.0000000 22.06992 145% - 1s 0 0 21.99586 0 191 9.00000 21.99586 144% - 1s H 0 0 10.0000000 21.99586 120% - 1s 0 0 21.96681 0 193 10.00000 21.96681 120% - 2s 0 0 21.95006 0 193 10.00000 21.95006 120% - 2s H 0 0 11.0000000 21.95006 100% - 2s 0 0 21.93119 0 193 11.00000 21.93119 99.4% - 2s 0 0 21.92432 0 193 11.00000 21.92432 99.3% - 3s 0 0 21.92190 0 193 11.00000 21.92190 99.3% - 3s 0 0 21.91899 0 193 11.00000 21.91899 99.3% - 3s 0 0 21.91301 0 193 11.00000 21.91301 99.2% - 3s 0 0 21.90985 0 193 11.00000 21.90985 99.2% - 4s 0 0 21.90270 0 193 11.00000 21.90270 99.1% - 4s 0 0 21.90011 0 193 11.00000 21.90011 99.1% - 4s 0 0 21.89953 0 193 11.00000 21.89953 99.1% - 4s 0 0 21.89894 0 193 11.00000 21.89894 99.1% - 5s 0 0 21.89759 0 193 11.00000 21.89759 99.1% - 5s 0 2 21.89658 0 193 11.00000 21.89658 99.1% - 6s 144 128 17.38658 2 96 11.00000 21.75678 97.8% 138 10s H 270 198 12.0000000 21.55487 79.6% 112 12s 406 276 16.79497 10 94 12.00000 20.82834 73.6% 117 15s 583 362 15.35854 22 88 12.00000 20.02921 66.9% 118 20s 601 377 14.89070 21 193 12.00000 20.02921 66.9% 116 27s 605 380 16.51726 12 192 12.00000 20.02921 66.9% 115 30s 612 384 15.16344 24 193 12.00000 20.02921 66.9% 114 35s 618 388 14.04979 23 193 12.00000 20.02921 66.9% 113 40s 624 392 14.49093 23 193 12.00000 20.02921 66.9% 112 46s 627 396 20.02921 14 191 12.00000 20.02921 66.9% 119 50s 662 420 15.95904 31 93 12.00000 19.77229 64.8% 151 55s 714 454 13.25065 57 72 12.00000 17.89296 49.1% 186 60s 853 440 13.01866 27 48 12.00000 17.86467 48.9% 187 65s 1069 437 14.23413 18 58 12.00000 17.25040 43.8% 163 70s 1208 453 16.66280 29 103 12.00000 16.88350 40.7% 152 75s 1309 459 cutoff 32 12.00000 16.80251 40.0% 147 80s 1401 449 13.16924 25 53 12.00000 16.63649 38.6% 141 85s 1513 433 13.15762 25 53 12.00000 16.52230 37.7% 136 90s 1653 430 13.37861 27 52 12.00000 16.32247 36.0% 131 95s 1977 463 14.13949 43 78 12.00000 15.92215 32.7% 120 100s 2189 507 cutoff 33 12.00000 15.51871 29.3% 117 105s 2330 491 14.58013 37 85 12.00000 15.12610 26.1% 116 110s 2686 416 cutoff 48 12.00000 14.38154 19.8% 109 115s Cutting planes: Gomory: 2 Clique: 111 Zero half: 2 Explored 3308 nodes (315770 simplex iterations) in 119.23 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.200000000000e+01, best bound 1.200000000000e+01, gap 0.0%