Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:26:33 2012 Optimize a model with 257 rows, 278 columns and 918 nonzeros Presolve removed 0 rows and 17 columns Presolve time: 0.00s Presolved: 257 rows, 261 columns, 901 nonzeros Variable types: 0 continuous, 261 integer (260 binary) Found heuristic solution: objective 41.0000000 Root relaxation: objective 0.000000e+00, 176 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 0 110 41.00000 0.00000 100% - 0s H 0 0 34.0000000 0.00000 100% - 0s H 0 0 30.0000000 0.00000 100% - 0s H 0 0 24.0000000 0.00000 100% - 0s 0 0 0.19545 0 111 24.00000 0.19545 99.2% - 0s H 0 0 22.0000000 0.19545 99.1% - 0s H 0 0 15.0000000 0.19545 98.7% - 0s 0 0 1.00000 0 114 15.00000 1.00000 93.3% - 0s H 0 0 12.0000000 1.00000 91.7% - 0s 0 0 1.00000 0 114 12.00000 1.00000 91.7% - 0s 0 0 1.00000 0 112 12.00000 1.00000 91.7% - 0s H 0 0 7.0000000 1.00000 85.7% - 0s H 0 0 2.0000000 1.00000 50.0% - 0s 0 2 1.00000 0 112 2.00000 1.00000 50.0% - 0s Cutting planes: Gomory: 4 Explored 13 nodes (1395 simplex iterations) in 0.10 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.000000000000e+00, best bound 2.000000000000e+00, gap 0.0%