Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:20:52 2012 Optimize a model with 197 rows, 164 columns and 654 nonzeros Presolve removed 0 rows and 2 columns Presolve time: 0.00s Presolved: 197 rows, 162 columns, 652 nonzeros Variable types: 0 continuous, 162 integer (161 binary) Found heuristic solution: objective 46.0000000 Root relaxation: objective 0.000000e+00, 91 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.00000 0 63 46.00000 0.00000 100% - 0s H 0 0 42.0000000 0.00000 100% - 0s H 0 0 40.0000000 0.00000 100% - 0s H 0 0 39.0000000 0.00000 100% - 0s 0 0 0.62112 0 64 39.00000 0.62112 98.4% - 0s H 0 0 38.0000000 0.62112 98.4% - 0s 0 0 1.00765 0 65 38.00000 1.00765 97.3% - 0s H 0 0 27.0000000 1.00765 96.3% - 0s H 0 0 25.0000000 1.00765 96.0% - 0s 0 0 1.06954 0 66 25.00000 1.06954 95.7% - 0s 0 0 1.22381 0 67 25.00000 1.22381 95.1% - 0s H 0 0 22.0000000 1.22381 94.4% - 0s H 0 0 21.0000000 1.22381 94.2% - 0s H 0 0 19.0000000 1.22381 93.6% - 0s H 0 0 16.0000000 1.22381 92.4% - 0s 0 2 1.29148 0 67 16.00000 1.29148 91.9% - 0s * 20 14 11 15.0000000 3.13712 79.1% 26.9 0s * 25 12 11 14.0000000 3.13712 77.6% 23.5 0s * 42 17 11 13.0000000 3.16021 75.7% 22.1 0s Cutting planes: Gomory: 3 Explored 167 nodes (3589 simplex iterations) in 0.18 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.300000000000e+01, best bound 1.300000000000e+01, gap 0.0%