Gurobi 5.0.1 (linux64) logging started Wed Apr 24 06:01:34 2013 Optimize a model with 82080 rows, 81180 columns and 324180 nonzeros Presolve removed 90 rows and 0 columns Presolve time: 0.39s Presolved: 81990 rows, 81180 columns, 324090 nonzeros Variable types: 81090 continuous, 90 integer (90 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 8017 7.4195302e+04 2.275908e+04 0.000000e+00 5s 10019 7.4856109e+04 0.000000e+00 0.000000e+00 10s Root relaxation: objective 7.485611e+04, 10019 iterations, 10.12 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 74856.1085 0 59 - 74856.1085 - - 10s H 0 0 122235.00000 74856.1085 38.8% - 17s H 0 0 110899.00000 74856.1085 32.5% - 37s 0 0 92878.1899 0 25 110899.000 92878.1899 16.2% - 56s 0 0 99518.9094 0 11 110899.000 99518.9094 10.3% - 64s 0 0 102596.467 0 8 110899.000 102596.467 7.49% - 69s 0 0 103419.686 0 4 110899.000 103419.686 6.74% - 70s H 0 0 110136.94468 103419.686 6.10% - 70s H 0 0 109522.00000 103419.686 5.57% - 70s 0 2 103437.967 0 4 109522.000 103437.967 5.56% - 72s H 1 1 108086.91719 103437.967 4.30% 0.0 73s H 2 2 107761.20049 103545.764 3.91% 218 73s H 3 3 105532.32184 103625.616 1.81% 273 73s H 5 5 105238.67257 103640.167 1.52% 385 75s H 6 6 104935.96552 103663.407 1.21% 417 75s H 8 8 104440.43820 103663.407 0.74% 529 76s H 9 9 104200.25926 103663.407 0.52% 502 76s H 10 7 104127.50538 103663.407 0.45% 461 77s H 11 6 104122.30000 103663.407 0.44% 427 77s H 12 6 104112.33333 103663.407 0.43% 400 77s 37 10 104072.100 34 1 104112.333 103663.407 0.43% 167 80s * 53 6 8 103859.00000 103760.753 0.09% 194 82s * 64 3 8 103852.00000 103823.000 0.03% 173 83s Cutting planes: Gomory: 1 Implied bound: 89 Explored 67 nodes (38625 simplex iterations) in 83.93 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.038520000000e+05, best bound 1.038445510204e+05, gap 0.0072%