Gurobi 5.0.1 (linux64) logging started Tue Nov 20 06:24:34 2012 Optimize a model with 932 rows, 138 columns and 1864 nonzeros Presolve removed 370 rows and 0 columns Presolve time: 0.01s Presolved: 562 rows, 138 columns, 1463 nonzeros Variable types: 0 continuous, 138 integer (138 binary) Found heuristic solution: objective 29.0000000 Root relaxation: objective 4.541904e+01, 402 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 45.41904 0 136 29.00000 45.41904 56.6% - 0s H 0 0 32.0000000 45.41904 41.9% - 0s 0 0 45.13987 0 137 32.00000 45.13987 41.1% - 0s 0 0 45.09497 0 137 32.00000 45.09497 40.9% - 0s 0 0 45.08715 0 138 32.00000 45.08715 40.9% - 0s 0 0 44.93701 0 138 32.00000 44.93701 40.4% - 0s 0 0 44.72413 0 138 32.00000 44.72413 39.8% - 0s 0 0 44.60829 0 138 32.00000 44.60829 39.4% - 0s 0 0 44.58181 0 138 32.00000 44.58181 39.3% - 0s 0 0 44.51774 0 138 32.00000 44.51774 39.1% - 0s 0 0 44.44667 0 138 32.00000 44.44667 38.9% - 0s 0 0 44.36174 0 138 32.00000 44.36174 38.6% - 0s 0 0 44.19207 0 137 32.00000 44.19207 38.1% - 0s 0 0 44.10231 0 138 32.00000 44.10231 37.8% - 0s 0 0 44.00793 0 137 32.00000 44.00793 37.5% - 0s 0 0 43.97767 0 137 32.00000 43.97767 37.4% - 0s 0 0 43.96731 0 137 32.00000 43.96731 37.4% - 0s H 0 0 34.0000000 43.96731 29.3% - 0s 0 2 43.96331 0 137 34.00000 43.96331 29.3% - 0s H 192 72 35.0000000 42.18008 20.5% 49.3 0s H 953 252 36.0000000 40.83731 13.4% 45.6 2s 2727 521 37.90865 21 97 36.00000 39.59420 10.0% 36.5 5s Explored 5016 nodes (157493 simplex iterations) in 7.18 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.600000000000e+01, best bound 3.600000000000e+01, gap 0.0%