Gurobi 5.0.1 (linux64) logging started Wed Apr 24 03:45:12 2013 Optimize a model with 64960 rows, 64160 columns and 256160 nonzeros Presolve removed 80 rows and 0 columns Presolve time: 0.29s Presolved: 64880 rows, 64160 columns, 256080 nonzeros Variable types: 64080 continuous, 80 integer (80 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 7617 6.7192606e+04 3.567267e+02 0.000000e+00 5s 7869 6.7205870e+04 0.000000e+00 0.000000e+00 6s Root relaxation: objective 6.720587e+04, 7869 iterations, 5.54 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 67205.8704 0 59 - 67205.8704 - - 6s H 0 0 109305.00000 67205.8704 38.5% - 9s H 0 0 97177.000000 67205.8704 30.8% - 30s 0 0 84081.2067 0 17 97177.0000 84081.2067 13.5% - 41s 0 0 89058.7997 0 14 97177.0000 89058.7997 8.35% - 46s 0 0 91761.5030 0 7 97177.0000 91761.5030 5.57% - 49s H 0 0 92058.000000 91761.5030 0.32% - 49s 0 0 91762.5756 0 7 92058.0000 91762.5756 0.32% - 49s 0 0 91914.1333 0 2 92058.0000 91914.1333 0.16% - 51s 0 0 91914.1333 0 45 92058.0000 91914.1333 0.16% - 56s 0 0 91914.1333 0 6 92058.0000 91914.1333 0.16% - 61s 0 0 91914.1333 0 3 92058.0000 91914.1333 0.16% - 62s 0 0 91914.1333 0 3 92058.0000 91914.1333 0.16% - 63s 0 0 91914.1333 0 2 92058.0000 91914.1333 0.16% - 63s 0 0 91914.1333 0 2 92058.0000 91914.1333 0.16% - 63s 0 2 91919.5983 0 2 92058.0000 91919.5983 0.15% - 64s 1 3 91962.0000 1 2 92058.0000 91962.0000 0.10% 211 65s * 17 1 2 92018.000000 92013.4231 0.00% 97.8 66s Cutting planes: Gomory: 3 Implied bound: 55 MIR: 1 Explored 18 nodes (32198 simplex iterations) in 66.74 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.201800000000e+04, best bound 9.201342307692e+04, gap 0.0050%