Gurobi 5.0.1 (linux64) logging started Tue Nov 20 05:51:45 2012 Optimize a model with 714 rows, 114 columns and 1428 nonzeros Presolve removed 275 rows and 0 columns Presolve time: 0.00s Presolved: 439 rows, 114 columns, 1142 nonzeros Variable types: 0 continuous, 114 integer (114 binary) Found heuristic solution: objective 29.0000000 Root relaxation: objective 3.827099e+01, 317 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 38.27099 0 112 29.00000 38.27099 32.0% - 0s 0 0 37.83324 0 113 29.00000 37.83324 30.5% - 0s 0 0 37.61831 0 113 29.00000 37.61831 29.7% - 0s 0 0 37.53540 0 113 29.00000 37.53540 29.4% - 0s 0 0 37.29431 0 112 29.00000 37.29431 28.6% - 0s 0 0 36.91431 0 112 29.00000 36.91431 27.3% - 0s 0 0 36.80985 0 113 29.00000 36.80985 26.9% - 0s 0 0 36.63504 0 114 29.00000 36.63504 26.3% - 0s 0 0 36.47867 0 110 29.00000 36.47867 25.8% - 0s 0 0 36.42883 0 112 29.00000 36.42883 25.6% - 0s 0 0 36.38349 0 114 29.00000 36.38349 25.5% - 0s 0 0 36.36749 0 113 29.00000 36.36749 25.4% - 0s 0 0 36.32937 0 114 29.00000 36.32937 25.3% - 0s 0 0 36.29715 0 112 29.00000 36.29715 25.2% - 0s 0 0 36.24080 0 113 29.00000 36.24080 25.0% - 0s 0 0 36.20451 0 112 29.00000 36.20451 24.8% - 0s 0 0 36.17427 0 112 29.00000 36.17427 24.7% - 0s 0 0 36.12377 0 112 29.00000 36.12377 24.6% - 0s 0 0 36.11160 0 113 29.00000 36.11160 24.5% - 0s 0 0 36.11160 0 113 29.00000 36.11160 24.5% - 0s 0 2 36.10880 0 113 29.00000 36.10880 24.5% - 0s H 296 96 30.0000000 34.00833 13.4% 32.5 0s 617 134 31.92683 11 114 30.00000 33.17647 10.6% 29.8 5s Cutting planes: Gomory: 3 Clique: 2 Zero half: 46 Explored 1555 nodes (45856 simplex iterations) in 6.39 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.000000000000e+01, best bound 3.000000000000e+01, gap 0.0%