Gurobi 5.0.1 (linux64) logging started Mon Feb 4 16:01:15 2013 Optimize a model with 129 rows, 81 columns and 405 nonzeros Presolve removed 38 rows and 38 columns Presolve time: 0.00s Presolved: 91 rows, 43 columns, 315 nonzeros Variable types: 7 continuous, 36 integer (36 binary) Found heuristic solution: objective 1093.0000000 Found heuristic solution: objective 1006.0000000 Root relaxation: objective 7.283333e+02, 21 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 728.33333 0 7 1006.00000 728.33333 27.6% - 0s H 0 0 765.0000000 728.33333 4.79% - 0s 0 0 729.00000 0 10 765.00000 729.00000 4.71% - 0s 0 0 729.00000 0 17 765.00000 729.00000 4.71% - 0s H 0 0 759.0000000 729.00000 3.95% - 0s 0 0 730.86829 0 23 759.00000 730.86829 3.71% - 0s 0 0 731.47485 0 19 759.00000 731.47485 3.63% - 0s H 0 0 746.0000000 731.47485 1.95% - 0s 0 0 731.81547 0 21 746.00000 731.81547 1.90% - 0s 0 0 732.23975 0 20 746.00000 732.23975 1.84% - 0s 0 0 732.55395 0 18 746.00000 732.55395 1.80% - 0s 0 0 732.69113 0 23 746.00000 732.69113 1.78% - 0s 0 0 732.78214 0 19 746.00000 732.78214 1.77% - 0s 0 0 732.79466 0 18 746.00000 732.79466 1.77% - 0s 0 0 732.79600 0 21 746.00000 732.79600 1.77% - 0s 0 0 732.79600 0 20 746.00000 732.79600 1.77% - 0s H 0 0 742.0000000 732.79600 1.24% - 0s 0 2 732.80920 0 20 742.00000 732.80920 1.24% - 0s Cutting planes: Implied bound: 2 Clique: 1 MIR: 19 Explored 24 nodes (334 simplex iterations) in 0.02 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.420000000000e+02, best bound 7.420000000000e+02, gap 0.0%