Gurobi 5.0.1 (linux64) logging started Mon Nov 19 07:07:08 2012 Optimize a model with 4213 rows, 130 columns and 8426 nonzeros Presolve removed 3005 rows and 0 columns Presolve time: 0.14s Presolved: 1208 rows, 130 columns, 8464 nonzeros Variable types: 0 continuous, 130 integer (130 binary) Found heuristic solution: objective 8.0000000 Root relaxation: objective 1.691068e+01, 559 iterations, 0.03 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 16.91068 0 126 8.00000 16.91068 111% - 0s 0 0 16.40796 0 129 8.00000 16.40796 105% - 0s 0 0 16.34574 0 130 8.00000 16.34574 104% - 0s 0 0 16.28964 0 129 8.00000 16.28964 104% - 0s 0 0 16.27992 0 129 8.00000 16.27992 103% - 0s 0 0 16.25586 0 128 8.00000 16.25586 103% - 1s H 0 0 9.0000000 16.25586 80.6% - 1s 0 0 16.23849 0 128 9.00000 16.23849 80.4% - 1s 0 0 16.22618 0 128 9.00000 16.22618 80.3% - 1s 0 0 16.21839 0 128 9.00000 16.21839 80.2% - 1s 0 0 16.21531 0 128 9.00000 16.21531 80.2% - 1s 0 0 16.21470 0 128 9.00000 16.21470 80.2% - 2s 0 0 16.21443 0 128 9.00000 16.21443 80.2% - 2s 0 0 16.21443 0 128 9.00000 16.21443 80.2% - 2s 0 2 16.21197 0 128 9.00000 16.21197 80.1% - 2s 418 191 11.56068 20 57 9.00000 13.98253 55.4% 67.8 5s H 705 220 10.0000000 12.67446 26.7% 60.9 9s 712 224 12.57434 6 128 10.00000 12.67446 26.7% 60.3 10s Cutting planes: Clique: 56 Explored 1264 nodes (82133 simplex iterations) in 14.21 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%