Gurobi 5.0.1 (linux64) logging started Mon Nov 19 07:47:45 2012 Optimize a model with 5414 rows, 148 columns and 10828 nonzeros Presolve removed 3918 rows and 0 columns Presolve time: 0.20s Presolved: 1496 rows, 148 columns, 10797 nonzeros Variable types: 0 continuous, 148 integer (148 binary) Found heuristic solution: objective 7.0000000 Root relaxation: objective 1.900160e+01, 718 iterations, 0.05 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 19.00160 0 146 7.00000 19.00160 171% - 0s H 0 0 8.0000000 19.00160 138% - 0s 0 0 18.25619 0 147 8.00000 18.25619 128% - 0s H 0 0 9.0000000 18.25619 103% - 0s 0 0 18.15319 0 147 9.00000 18.15319 102% - 0s 0 0 18.06466 0 147 9.00000 18.06466 101% - 0s 0 0 17.98728 0 147 9.00000 17.98728 100% - 1s 0 0 17.96773 0 148 9.00000 17.96773 100% - 1s H 0 0 10.0000000 17.96773 79.7% - 1s 0 0 17.95973 0 146 10.00000 17.95973 79.6% - 1s 0 0 17.95264 0 148 10.00000 17.95264 79.5% - 1s 0 0 17.93616 0 147 10.00000 17.93616 79.4% - 1s 0 0 17.93019 0 147 10.00000 17.93019 79.3% - 2s 0 0 17.91898 0 147 10.00000 17.91898 79.2% - 2s 0 0 17.91140 0 147 10.00000 17.91140 79.1% - 2s 0 0 17.91104 0 146 10.00000 17.91104 79.1% - 2s 0 0 17.90962 0 147 10.00000 17.90962 79.1% - 2s 0 0 17.90899 0 147 10.00000 17.90899 79.1% - 3s 0 0 17.90836 0 147 10.00000 17.90836 79.1% - 3s 0 2 17.90688 0 147 10.00000 17.90688 79.1% - 3s 130 108 14.73187 3 74 10.00000 17.44977 74.5% 92.1 5s 601 272 14.72324 4 147 10.00000 14.86408 48.6% 77.7 10s 650 307 12.33650 32 60 10.00000 14.86408 48.6% 98.3 15s 1359 293 11.68182 21 38 10.00000 13.68989 36.9% 81.7 20s 1788 270 12.28150 27 56 10.00000 12.53655 25.4% 73.8 25s Cutting planes: Clique: 71 Explored 2288 nodes (147218 simplex iterations) in 27.52 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%