Gurobi 5.0.1 (linux64) logging started Wed Apr 24 06:09:53 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 8311 7.5299430e+04 5.229726e+04 0.000000e+00 5s 10192 7.6128066e+04 0.000000e+00 0.000000e+00 10s Root relaxation: objective 7.612807e+04, 10192 iterations, 10.08 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 76128.0663 0 64 - 76128.0663 - - 10s H 0 0 126212.00000 76128.0663 39.7% - 17s H 0 0 108324.00000 76128.0663 29.7% - 53s 0 0 98411.9149 0 30 108324.000 98411.9149 9.15% - 74s 0 0 104500.677 0 7 108324.000 104500.677 3.53% - 81s 0 0 104813.372 0 5 108324.000 104813.372 3.24% - 82s 0 0 104824.714 0 6 108324.000 104824.714 3.23% - 83s 0 0 104825.997 0 5 108324.000 104825.997 3.23% - 83s 0 2 104832.807 0 5 108324.000 104832.807 3.22% - 85s H 3 3 106878.01186 104900.599 1.85% 95.3 86s H 8 5 105022.00000 104918.128 0.10% 129 87s H 9 3 105015.18519 104918.128 0.09% 121 87s H 12 4 105002.32967 104918.128 0.08% 113 87s * 13 4 13 104982.00000 104918.128 0.06% 113 88s Cutting planes: Implied bound: 88 Explored 18 nodes (25535 simplex iterations) in 88.45 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.049820000000e+05, best bound 1.049820000000e+05, gap 0.0%