Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:28:38 2013 Optimize a model with 34336 rows, 33756 columns and 134676 nonzeros Presolve removed 58 rows and 0 columns Presolve time: 0.15s Presolved: 34278 rows, 33756 columns, 134618 nonzeros Variable types: 33698 continuous, 58 integer (58 binary) Root relaxation: objective 5.049615e+04, 4725 iterations, 2.12 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 50496.1532 0 45 - 50496.1532 - - 2s H 0 0 77700.000000 50496.1532 35.0% - 3s 0 0 64364.5195 0 10 77700.0000 64364.5195 17.2% - 6s H 0 0 73702.466409 64364.5195 12.7% - 6s H 0 0 71535.000000 64364.5195 10.0% - 6s 0 0 66919.0727 0 6 71535.0000 66919.0727 6.45% - 7s H 0 0 70978.981067 66919.0727 5.72% - 7s H 0 0 69661.000000 66919.0727 3.94% - 7s 0 0 67165.5209 0 4 69661.0000 67165.5209 3.58% - 8s 0 0 67226.9052 0 4 69661.0000 67226.9052 3.49% - 8s H 0 0 67548.000000 67226.9052 0.48% - 8s 0 0 67237.8955 0 4 67548.0000 67237.8955 0.46% - 8s 0 0 67237.8955 0 38 67548.0000 67237.8955 0.46% - 11s 0 0 67237.8955 0 3 67548.0000 67237.8955 0.46% - 14s 0 0 67237.8955 0 6 67548.0000 67237.8955 0.46% - 15s 0 0 67237.8955 0 5 67548.0000 67237.8955 0.46% - 15s 0 0 67237.8955 0 4 67548.0000 67237.8955 0.46% - 16s 0 2 67243.8489 0 4 67548.0000 67243.8489 0.45% - 16s * 6 5 5 67527.000000 67366.1861 0.24% 160 17s Cutting planes: Gomory: 5 Implied bound: 47 Explored 19 nodes (22217 simplex iterations) in 17.71 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.752700000000e+04, best bound 6.752700000000e+04, gap 0.0%