Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:37:38 2012 Optimize a model with 535 rows, 486 columns and 1821 nonzeros Presolve removed 0 rows and 18 columns Presolve time: 0.00s Presolved: 535 rows, 468 columns, 1803 nonzeros Variable types: 0 continuous, 468 integer (467 binary) Found heuristic solution: objective 97.0000000 Root relaxation: objective 0.000000e+00, 299 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 0 192 97.00000 0.00000 100% - 0s H 0 0 68.0000000 0.00000 100% - 0s H 0 0 65.0000000 0.00000 100% - 0s H 0 0 61.0000000 0.00000 100% - 0s 0 0 0.43229 0 193 61.00000 0.43229 99.3% - 0s H 0 0 55.0000000 0.43229 99.2% - 0s 0 0 1.01949 0 194 55.00000 1.01949 98.1% - 0s H 0 0 42.0000000 1.01949 97.6% - 0s 0 0 1.06234 0 195 42.00000 1.06234 97.5% - 0s 0 0 1.07114 0 195 42.00000 1.07114 97.4% - 0s H 0 0 41.0000000 1.07114 97.4% - 0s 0 2 1.07302 0 195 41.00000 1.07302 97.4% - 0s * 45 34 26 19.0000000 1.28760 93.2% 33.2 0s Cutting planes: Gomory: 3 Zero half: 1 Explored 1150 nodes (35284 simplex iterations) in 1.64 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.900000000000e+01, best bound 1.900000000000e+01, gap 0.0%