Gurobi 5.0.1 (linux64) logging started Tue Nov 20 06:15:05 2012 Optimize a model with 924 rows, 134 columns and 1848 nonzeros Presolve removed 369 rows and 0 columns Presolve time: 0.01s Presolved: 555 rows, 134 columns, 1466 nonzeros Variable types: 0 continuous, 134 integer (134 binary) Found heuristic solution: objective 30.0000000 Root relaxation: objective 4.446646e+01, 390 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 44.46646 0 134 30.00000 44.46646 48.2% - 0s 0 0 44.17288 0 134 30.00000 44.17288 47.2% - 0s H 0 0 32.0000000 44.17288 38.0% - 0s 0 0 44.05920 0 133 32.00000 44.05920 37.7% - 0s 0 0 43.97790 0 133 32.00000 43.97790 37.4% - 0s 0 0 43.85737 0 134 32.00000 43.85737 37.1% - 0s 0 0 43.73031 0 134 32.00000 43.73031 36.7% - 0s 0 0 43.54547 0 134 32.00000 43.54547 36.1% - 0s 0 0 43.35058 0 134 32.00000 43.35058 35.5% - 0s 0 0 43.28422 0 133 32.00000 43.28422 35.3% - 0s H 0 0 33.0000000 43.28422 31.2% - 0s 0 0 43.22954 0 134 33.00000 43.22954 31.0% - 0s 0 0 43.11553 0 134 33.00000 43.11553 30.7% - 0s 0 0 43.02168 0 134 33.00000 43.02168 30.4% - 0s 0 0 42.89592 0 134 33.00000 42.89592 30.0% - 0s 0 0 42.88493 0 134 33.00000 42.88493 30.0% - 0s 0 0 42.87174 0 134 33.00000 42.87174 29.9% - 0s 0 0 42.83369 0 133 33.00000 42.83369 29.8% - 0s 0 0 42.83307 0 133 33.00000 42.83307 29.8% - 0s 0 0 42.83299 0 133 33.00000 42.83299 29.8% - 0s 0 2 42.83252 0 133 33.00000 42.83252 29.8% - 0s * 66 36 10 34.0000000 42.37433 24.6% 57.3 0s 806 314 cutoff 29 34.00000 40.18529 18.2% 47.5 5s * 971 290 28 35.0000000 40.18529 14.8% 44.9 5s Cutting planes: Gomory: 7 Clique: 5 Zero half: 40 Explored 3618 nodes (117754 simplex iterations) in 9.11 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.500000000000e+01, best bound 3.500000000000e+01, gap 0.0%