Gurobi 5.0.1 (linux64) logging started Mon Nov 19 08:04:05 2012 Optimize a model with 5747 rows, 152 columns and 11494 nonzeros Presolve removed 4177 rows and 0 columns Presolve time: 0.25s Presolved: 1570 rows, 152 columns, 11547 nonzeros Variable types: 0 continuous, 152 integer (152 binary) Found heuristic solution: objective 6.0000000 Root relaxation: objective 1.863091e+01, 769 iterations, 0.06 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 18.63091 0 151 6.00000 18.63091 211% - 0s H 0 0 8.0000000 18.63091 133% - 0s 0 0 18.26301 0 151 8.00000 18.26301 128% - 0s H 0 0 9.0000000 18.26301 103% - 0s 0 0 18.14746 0 152 9.00000 18.14746 102% - 0s 0 0 18.10463 0 151 9.00000 18.10463 101% - 1s 0 0 18.05666 0 152 9.00000 18.05666 101% - 1s 0 0 18.03697 0 150 9.00000 18.03697 100% - 1s 0 0 18.03309 0 151 9.00000 18.03309 100% - 1s 0 0 18.03019 0 151 9.00000 18.03019 100% - 1s 0 0 18.02587 0 151 9.00000 18.02587 100% - 2s 0 0 18.01817 0 151 9.00000 18.01817 100% - 2s 0 0 18.01530 0 152 9.00000 18.01530 100% - 2s 0 0 18.01214 0 152 9.00000 18.01214 100% - 2s 0 0 18.01153 0 152 9.00000 18.01153 100% - 2s 0 0 18.01152 0 152 9.00000 18.01152 100% - 3s 0 0 18.00856 0 152 9.00000 18.00856 100% - 3s 0 0 18.00647 0 152 9.00000 18.00647 100% - 3s 0 0 18.00324 0 152 9.00000 18.00324 100% - 3s 0 0 18.00167 0 152 9.00000 18.00167 100% - 3s 0 0 18.00065 0 152 9.00000 18.00065 100% - 4s 0 0 18.00052 0 152 9.00000 18.00052 100% - 4s 0 2 17.99990 0 152 9.00000 17.99990 100% - 5s H 409 234 10.0000000 16.60680 66.1% 79.3 8s 531 291 13.03687 22 70 10.00000 15.67909 56.8% 80.0 10s 612 325 15.21397 13 150 10.00000 15.21397 52.1% 79.2 15s 723 365 cutoff 68 10.00000 15.10717 51.1% 116 20s 1527 298 12.01942 34 54 10.00000 13.20457 32.0% 80.3 25s 1781 292 12.52150 37 65 10.00000 12.76370 27.6% 76.1 30s Cutting planes: Clique: 63 Explored 2387 nodes (158084 simplex iterations) in 32.87 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%