Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:19:37 2012 Optimize a model with 463 rows, 444 columns and 1599 nonzeros Presolve removed 0 rows and 22 columns Presolve time: 0.00s Presolved: 463 rows, 422 columns, 1577 nonzeros Variable types: 0 continuous, 422 integer (421 binary) Found heuristic solution: objective 93.0000000 Root relaxation: objective 0.000000e+00, 273 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 0 188 93.00000 0.00000 100% - 0s H 0 0 70.0000000 0.00000 100% - 0s H 0 0 69.0000000 0.00000 100% - 0s H 0 0 66.0000000 0.00000 100% - 0s 0 0 0.29391 0 190 66.00000 0.29391 100% - 0s H 0 0 65.0000000 0.29391 100% - 0s H 0 0 52.0000000 0.29391 99.4% - 0s 0 0 0.86903 0 193 52.00000 0.86903 98.3% - 0s H 0 0 38.0000000 0.86903 97.7% - 0s 0 0 0.86903 0 193 38.00000 0.86903 97.7% - 0s H 0 0 33.0000000 0.86903 97.4% - 0s H 0 0 32.0000000 0.86903 97.3% - 0s H 0 0 30.0000000 0.86903 97.1% - 0s 0 2 0.88257 0 193 30.00000 0.88257 97.1% - 0s H 27 27 22.0000000 1.00000 95.5% 34.6 0s * 40 25 25 14.0000000 1.00000 92.9% 28.2 0s H 72 34 13.0000000 1.09589 91.6% 34.6 0s H 81 35 12.0000000 1.09589 90.9% 32.3 0s * 94 31 8 11.0000000 2.74468 75.0% 35.2 0s * 154 14 7 10.0000000 7.39286 26.1% 33.9 0s Cutting planes: Gomory: 4 Explored 171 nodes (6599 simplex iterations) in 0.34 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.000000000000e+01, best bound 1.000000000000e+01, gap 0.0%