Gurobi 5.0.1 (linux64) logging started Wed Apr 24 03:13:18 2013 Optimize a model with 60214 rows, 59444 columns and 237314 nonzeros Presolve removed 77 rows and 0 columns Presolve time: 0.27s Presolved: 60137 rows, 59444 columns, 237237 nonzeros Variable types: 59367 continuous, 77 integer (77 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 8274 6.6779630e+04 4.508946e+02 0.000000e+00 5s 8615 6.6803080e+04 0.000000e+00 0.000000e+00 6s Root relaxation: objective 6.680308e+04, 8615 iterations, 5.69 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 66803.0801 0 57 - 66803.0801 - - 6s H 0 0 112819.00000 66803.0801 40.8% - 11s 0 0 89303.4290 0 16 112819.000 89303.4290 20.8% - 21s H 0 0 102881.00000 89303.4290 13.2% - 22s 0 0 93421.8582 0 6 102881.000 93421.8582 9.19% - 24s H 0 0 101940.99446 93421.8582 8.36% - 24s H 0 0 99316.000000 93421.8582 5.93% - 24s 0 0 94051.8192 0 6 99316.0000 94051.8192 5.30% - 25s H 0 0 99247.000000 94051.8192 5.23% - 25s 0 0 94376.6253 0 3 99247.0000 94376.6253 4.91% - 25s H 0 0 96956.045977 94376.6253 2.66% - 25s H 0 0 96344.000000 94376.6253 2.04% - 25s H 0 0 94729.000000 94376.6253 0.37% - 26s 0 0 94377.1576 0 3 94729.0000 94377.1576 0.37% - 26s 0 2 94379.9632 0 3 94729.0000 94379.9632 0.37% - 27s 32 10 94609.8188 7 2 94729.0000 94533.2839 0.21% 93.2 30s * 55 4 5 94709.000000 94621.5057 0.09% 101 31s Cutting planes: Gomory: 1 Implied bound: 75 MIR: 2 Explored 60 nodes (25631 simplex iterations) in 31.59 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.470900000000e+04, best bound 9.470900000000e+04, gap 0.0%