Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:23:05 2012 Optimize a model with 499 rows, 464 columns and 1709 nonzeros Presolve removed 0 rows and 13 columns Presolve time: 0.00s Presolved: 499 rows, 451 columns, 1696 nonzeros Variable types: 0 continuous, 451 integer (450 binary) Found heuristic solution: objective 95.0000000 Root relaxation: objective 0.000000e+00, 253 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 0 194 95.00000 0.00000 100% - 0s H 0 0 75.0000000 0.00000 100% - 0s H 0 0 74.0000000 0.00000 100% - 0s H 0 0 72.0000000 0.00000 100% - 0s 0 0 0.48297 0 195 72.00000 0.48297 99.3% - 0s H 0 0 61.0000000 0.48297 99.2% - 0s 0 0 1.00000 0 198 61.00000 1.00000 98.4% - 0s H 0 0 59.0000000 1.00000 98.3% - 0s 0 0 1.00000 0 198 59.00000 1.00000 98.3% - 0s 0 0 1.00000 0 196 59.00000 1.00000 98.3% - 0s H 0 0 51.0000000 1.00000 98.0% - 0s H 0 0 46.0000000 1.00000 97.8% - 0s 0 2 1.00000 0 194 46.00000 1.00000 97.8% - 0s H 27 27 32.0000000 3.63380 88.6% 46.7 0s H 54 54 30.0000000 3.63380 87.9% 30.7 0s H 81 68 24.0000000 3.63380 84.9% 23.4 0s H 108 69 21.0000000 3.84615 81.7% 23.1 0s * 130 59 32 19.0000000 3.84615 79.8% 22.7 0s * 189 60 22 16.0000000 6.58333 58.9% 23.0 0s Cutting planes: Gomory: 2 Explored 615 nodes (17033 simplex iterations) in 0.78 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.600000000000e+01, best bound 1.600000000000e+01, gap 0.0%