Gurobi 5.0.1 (linux64) logging started Mon Nov 19 09:02:49 2012 Optimize a model with 6490 rows, 162 columns and 12980 nonzeros Presolve removed 4708 rows and 0 columns Presolve time: 0.29s Presolved: 1782 rows, 162 columns, 12921 nonzeros Variable types: 0 continuous, 162 integer (162 binary) Found heuristic solution: objective 8.0000000 Root relaxation: objective 2.016872e+01, 904 iterations, 0.08 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 20.16872 0 160 8.00000 20.16872 152% - 0s H 0 0 9.0000000 20.16872 124% - 0s 0 0 19.84681 0 162 9.00000 19.84681 121% - 0s 0 0 19.77947 0 161 9.00000 19.77947 120% - 0s H 0 0 10.0000000 19.77947 97.8% - 0s 0 0 19.70673 0 162 10.00000 19.70673 97.1% - 1s 0 0 19.69293 0 162 10.00000 19.69293 96.9% - 1s 0 0 19.68453 0 162 10.00000 19.68453 96.8% - 1s 0 0 19.67319 0 162 10.00000 19.67319 96.7% - 1s 0 0 19.62779 0 162 10.00000 19.62779 96.3% - 2s 0 0 19.61806 0 162 10.00000 19.61806 96.2% - 2s 0 0 19.61472 0 162 10.00000 19.61472 96.1% - 2s 0 0 19.60864 0 162 10.00000 19.60864 96.1% - 2s 0 0 19.60200 0 162 10.00000 19.60200 96.0% - 2s 0 0 19.59708 0 162 10.00000 19.59708 96.0% - 3s 0 0 19.59552 0 162 10.00000 19.59552 96.0% - 3s 0 2 19.59320 0 162 10.00000 19.59320 95.9% - 4s 36 38 15.31342 36 124 10.00000 19.58896 95.9% 147 5s 519 365 12.77535 21 67 10.00000 17.38589 73.9% 87.6 10s 608 420 13.58491 16 161 10.00000 16.94304 69.4% 85.6 15s 649 449 16.94304 33 138 10.00000 16.94304 69.4% 109 20s 1118 518 12.84194 45 69 10.00000 15.00855 50.1% 105 25s 1551 556 13.41928 45 75 10.00000 14.70250 47.0% 88.6 30s 1939 553 11.79115 30 46 10.00000 14.36799 43.7% 80.0 35s 2657 621 11.21429 42 42 10.00000 13.44857 34.5% 71.3 40s 3398 567 11.21271 63 53 10.00000 12.45980 24.6% 65.9 45s Cutting planes: Clique: 49 Explored 4218 nodes (246876 simplex iterations) in 47.76 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%