Gurobi 5.0.1 (linux64) logging started Sun Nov 18 07:26:19 2012 Optimize a model with 519 rows, 488 columns and 1783 nonzeros Presolve removed 0 rows and 27 columns Presolve time: 0.00s Presolved: 519 rows, 461 columns, 1756 nonzeros Variable types: 0 continuous, 461 integer (460 binary) Found heuristic solution: objective 88.0000000 Root relaxation: objective 0.000000e+00, 234 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 0 185 88.00000 0.00000 100% - 0s H 0 0 81.0000000 0.00000 100% - 0s H 0 0 76.0000000 0.00000 100% - 0s H 0 0 72.0000000 0.00000 100% - 0s 0 0 0.30231 0 186 72.00000 0.30231 100% - 0s H 0 0 70.0000000 0.30231 100% - 0s 0 0 1.00000 0 189 70.00000 1.00000 98.6% - 0s H 0 0 63.0000000 1.00000 98.4% - 0s H 0 0 59.0000000 1.00000 98.3% - 0s 0 0 1.00000 0 189 59.00000 1.00000 98.3% - 0s 0 0 1.00000 0 188 59.00000 1.00000 98.3% - 0s H 0 0 55.0000000 1.00000 98.2% - 0s H 0 0 53.0000000 1.00000 98.1% - 0s H 0 0 47.0000000 1.00000 97.9% - 0s 0 2 1.00000 0 188 47.00000 1.00000 97.9% - 0s H 54 38 21.0000000 1.00000 95.2% 28.4 0s H 83 49 20.0000000 1.00000 95.0% 29.6 0s H 188 94 18.0000000 6.44444 64.2% 32.2 0s * 589 119 12 17.0000000 10.31532 39.3% 30.6 0s Cutting planes: Gomory: 2 Zero half: 1 Mod-K: 1 Explored 1001 nodes (29697 simplex iterations) in 1.33 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.700000000000e+01, best bound 1.700000000000e+01, gap 0.0%