Gurobi 5.0.1 (linux64) logging started Tue Nov 20 05:59:17 2012 Optimize a model with 790 rows, 125 columns and 1580 nonzeros Presolve removed 302 rows and 0 columns Presolve time: 0.01s Presolved: 488 rows, 125 columns, 1263 nonzeros Variable types: 0 continuous, 125 integer (125 binary) Found heuristic solution: objective 27.0000000 Root relaxation: objective 4.204314e+01, 333 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 42.04314 0 123 27.00000 42.04314 55.7% - 0s H 0 0 28.0000000 42.04314 50.2% - 0s 0 0 41.60285 0 125 28.00000 41.60285 48.6% - 0s H 0 0 29.0000000 41.60285 43.5% - 0s 0 0 41.40224 0 124 29.00000 41.40224 42.8% - 0s H 0 0 30.0000000 41.40224 38.0% - 0s 0 0 41.17570 0 124 30.00000 41.17570 37.3% - 0s 0 0 41.09076 0 124 30.00000 41.09076 37.0% - 0s 0 0 40.94023 0 123 30.00000 40.94023 36.5% - 0s 0 0 40.83467 0 125 30.00000 40.83467 36.1% - 0s 0 0 40.81827 0 124 30.00000 40.81827 36.1% - 0s H 0 0 31.0000000 40.81827 31.7% - 0s 0 0 40.78528 0 125 31.00000 40.78528 31.6% - 0s 0 0 40.69351 0 124 31.00000 40.69351 31.3% - 0s 0 0 40.64201 0 122 31.00000 40.64201 31.1% - 0s 0 0 40.61262 0 123 31.00000 40.61262 31.0% - 0s 0 0 40.50966 0 124 31.00000 40.50966 30.7% - 0s 0 0 40.46636 0 123 31.00000 40.46636 30.5% - 0s 0 0 40.40587 0 123 31.00000 40.40587 30.3% - 0s 0 0 40.35898 0 123 31.00000 40.35898 30.2% - 0s 0 0 40.33713 0 121 31.00000 40.33713 30.1% - 0s 0 0 40.29746 0 123 31.00000 40.29746 30.0% - 0s H 0 0 32.0000000 40.29746 25.9% - 0s 0 0 40.27114 0 123 32.00000 40.27114 25.8% - 0s 0 0 40.25028 0 123 32.00000 40.25028 25.8% - 0s 0 0 40.23705 0 124 32.00000 40.23705 25.7% - 0s 0 0 40.23705 0 123 32.00000 40.23705 25.7% - 0s 0 2 40.23646 0 123 32.00000 40.23646 25.7% - 0s * 12 12 11 33.0000000 40.23646 21.9% 47.1 0s H 63 26 34.0000000 39.46853 16.1% 41.8 0s 612 130 36.81818 6 123 34.00000 37.25926 9.59% 35.0 5s 640 151 37.25926 20 102 34.00000 37.25926 9.59% 38.7 10s Cutting planes: Gomory: 1 Clique: 3 Zero half: 103 Explored 1472 nodes (53886 simplex iterations) in 11.45 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.400000000000e+01, best bound 3.400000000000e+01, gap 0.0%