Gurobi 5.0.1 (linux64) logging started Wed Dec 19 14:01:37 2012 Optimize a model with 482 rows, 441 columns and 2690 nonzeros Presolve removed 176 rows and 222 columns Presolve time: 0.01s Presolved: 306 rows, 219 columns, 2398 nonzeros Variable types: 19 continuous, 200 integer (200 binary) Root relaxation: objective 2.987362e+02, 87 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 298.73617 0 37 - 298.73617 - - 0s 0 0 300.43165 0 29 - 300.43165 - - 0s 0 0 300.99487 0 29 - 300.99487 - - 0s 0 0 301.50000 0 27 - 301.50000 - - 0s 0 0 301.50000 0 25 - 301.50000 - - 0s 0 0 301.59201 0 32 - 301.59201 - - 0s 0 0 302.41086 0 39 - 302.41086 - - 0s 0 0 302.52837 0 40 - 302.52837 - - 0s 0 0 302.56529 0 44 - 302.56529 - - 0s 0 0 302.66667 0 29 - 302.66667 - - 0s 0 0 302.89384 0 39 - 302.89384 - - 0s 0 0 303.00000 0 39 - 303.00000 - - 0s 0 0 303.06187 0 34 - 303.06187 - - 0s 0 0 303.06877 0 35 - 303.06877 - - 0s 0 0 303.06877 0 26 - 303.06877 - - 0s 0 0 303.06877 0 26 - 303.06877 - - 0s H 0 0 335.0000000 303.06877 9.53% - 0s H 0 0 332.0000000 303.06877 8.71% - 0s 0 2 303.16972 0 26 332.00000 303.16972 8.68% - 0s * 53 15 10 326.0000000 310.32828 4.81% 10.8 0s * 78 1 8 320.0000000 320.00000 0.0% 10.2 0s Cutting planes: Learned: 2 Gomory: 2 Cover: 7 Implied bound: 1 Clique: 3 MIR: 13 GUB cover: 4 Zero half: 2 Mod-K: 3 Explored 79 nodes (1025 simplex iterations) in 0.17 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.200000000000e+02, best bound 3.200000000000e+02, gap 0.0%