Gurobi 5.0.1 (linux64) logging started Mon Nov 19 07:56:43 2012 Optimize a model with 5556 rows, 150 columns and 11112 nonzeros Presolve removed 3993 rows and 0 columns Presolve time: 0.23s Presolved: 1563 rows, 150 columns, 11307 nonzeros Variable types: 0 continuous, 150 integer (150 binary) Found heuristic solution: objective 7.0000000 Root relaxation: objective 1.906544e+01, 767 iterations, 0.05 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 19.06544 0 148 7.00000 19.06544 172% - 0s H 0 0 8.0000000 19.06544 138% - 0s 0 0 18.64182 0 150 8.00000 18.64182 133% - 0s H 0 0 9.0000000 18.64182 107% - 0s 0 0 18.52673 0 149 9.00000 18.52673 106% - 0s 0 0 18.36718 0 150 9.00000 18.36718 104% - 1s 0 0 18.28966 0 150 9.00000 18.28966 103% - 1s 0 0 18.24871 0 150 9.00000 18.24871 103% - 1s 0 0 18.23946 0 150 9.00000 18.23946 103% - 1s 0 0 18.20507 0 150 9.00000 18.20507 102% - 1s 0 0 18.18802 0 150 9.00000 18.18802 102% - 2s 0 0 18.17748 0 150 9.00000 18.17748 102% - 2s 0 0 18.17591 0 150 9.00000 18.17591 102% - 2s 0 0 18.17203 0 150 9.00000 18.17203 102% - 2s H 0 0 10.0000000 18.17203 81.7% - 2s 0 0 18.16618 0 150 10.00000 18.16618 81.7% - 2s 0 0 18.16572 0 150 10.00000 18.16572 81.7% - 3s 0 0 18.16567 0 150 10.00000 18.16567 81.7% - 3s 0 2 18.16084 0 150 10.00000 18.16084 81.6% - 4s 83 77 12.89338 10 64 10.00000 18.07579 80.8% 104 5s 601 300 11.52565 24 150 10.00000 14.99058 49.9% 81.6 11s 618 313 14.99058 15 87 10.00000 14.99058 49.9% 87.6 15s 1083 355 11.78982 27 41 10.00000 14.19938 42.0% 94.6 20s 1646 276 11.14310 33 38 10.00000 12.89924 29.0% 79.4 25s 2257 78 cutoff 46 10.00000 11.54851 15.5% 68.2 30s Cutting planes: Clique: 63 Explored 2364 nodes (157155 simplex iterations) in 30.13 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%