Gurobi 5.0.1 (linux64) logging started Wed Apr 24 10:33:09 2013 Optimize a model with 122320 rows, 121220 columns and 484220 nonzeros Presolve removed 110 rows and 0 columns Presolve time: 0.65s Presolved: 122210 rows, 121220 columns, 484110 nonzeros Variable types: 121110 continuous, 110 integer (110 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 11917 9.5715805e+04 8.760773e+04 0.000000e+00 5s 13282 9.7017408e+04 2.562439e+04 0.000000e+00 11s 14257 9.7687697e+04 6.364813e+04 0.000000e+00 15s Warning: Markowitz tolerance tightened to 0.03125 15427 9.8136760e+04 2.229478e+04 0.000000e+00 20s 16597 9.8435491e+04 8.453406e+03 0.000000e+00 25s 17442 9.8495113e+04 0.000000e+00 0.000000e+00 29s Root relaxation: objective 9.849511e+04, 17442 iterations, 29.40 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 98495.1134 0 77 - 98495.1134 - - 30s H 0 0 233467.00000 98495.1134 57.8% - 56s 0 0 133631.505 0 33 233467.000 133631.505 42.8% - 130s H 0 0 218509.00000 133631.505 38.8% - 148s 0 0 168573.331 0 12 218509.000 168573.331 22.9% - 198s H 0 0 213008.79563 168573.331 20.9% - 198s H 0 0 186792.00000 168573.331 9.75% - 199s 0 0 170429.142 0 4 186792.000 170429.142 8.76% - 208s H 0 0 181599.64312 170429.142 6.15% - 208s H 0 0 176648.00000 170429.142 3.52% - 208s H 0 0 170878.00000 170429.142 0.26% - 209s 0 0 170582.024 0 2 170878.000 170582.024 0.17% - 210s 0 2 170583.553 0 2 170878.000 170583.553 0.17% - 216s * 5 1 3 170821.00000 170821.000 0.0% 506 218s Cutting planes: Gomory: 1 Implied bound: 110 Explored 6 nodes (61956 simplex iterations) in 218.80 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.708210000000e+05, best bound 1.708210000000e+05, gap 0.0%