Gurobi 5.0.1 (linux64) logging started Fri Nov 30 00:22:13 2012 Optimize a model with 64010 rows, 64009 columns and 318024 nonzeros Presolve removed 0 rows and 1 columns Presolve time: 0.84s Presolved: 64010 rows, 64008 columns, 317772 nonzeros Variable types: 252 continuous, 63756 integer (63756 binary) Found heuristic solution: objective 2.000446e+09 Found heuristic solution: objective 2.000445e+09 Root relaxation: objective 8.808669e+04, 1864 iterations, 0.40 seconds Total elapsed time = 10.77s Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 88086.6905 0 72 2.0004e+09 88086.6905 100% - 15s 0 0 105400.429 0 802 2.0004e+09 105400.429 100% - 23s 0 0 105400.429 0 433 2.0004e+09 105400.429 100% - 28s 0 0 105400.429 0 632 2.0004e+09 105400.429 100% - 31s 0 0 105400.429 0 17 2.0004e+09 105400.429 100% - 41s H 0 0 107261.00000 105400.429 1.73% - 41s 0 0 105400.429 0 14 107261.000 105400.429 1.73% - 45s 0 0 105400.429 0 59 107261.000 105400.429 1.73% - 60s 0 0 105414.487 0 465 107261.000 105414.487 1.72% - 61s 0 0 105449.207 0 405 107261.000 105449.207 1.69% - 64s 0 0 105449.207 0 450 107261.000 105449.207 1.69% - 66s 0 0 105449.207 0 4 107261.000 105449.207 1.69% - 72s 0 0 105449.207 0 4 107261.000 105449.207 1.69% - 74s 0 0 105480.668 0 21 107261.000 105480.668 1.66% - 80s 0 0 105480.668 0 21 107261.000 105480.668 1.66% - 82s H 0 0 106957.00000 105480.668 1.38% - 84s 0 1 105536.175 0 16 106957.000 105536.175 1.33% - 93s Cutting planes: Learned: 1 Gomory: 8 Implied bound: 1 MIR: 1 Explored 4 nodes (120345 simplex iterations) in 94.45 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.069570000000e+05, best bound 1.069570000000e+05, gap 0.0%