Gurobi 5.0.1 (linux64) logging started Wed Apr 24 03:29:18 2013 Optimize a model with 63358 rows, 62568 columns and 249798 nonzeros Presolve removed 79 rows and 0 columns Presolve time: 0.29s Presolved: 63279 rows, 62568 columns, 249719 nonzeros Variable types: 62489 continuous, 79 integer (79 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 6953 6.4745400e+04 1.826314e+03 0.000000e+00 5s 7958 6.5059816e+04 0.000000e+00 0.000000e+00 7s Root relaxation: objective 6.505982e+04, 7958 iterations, 7.17 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 65059.8160 0 61 - 65059.8160 - - 7s H 0 0 107689.00000 65059.8160 39.6% - 14s 0 0 80254.2397 0 20 107689.000 80254.2397 25.5% - 25s H 0 0 93487.000000 80254.2397 14.2% - 26s 0 0 88007.3118 0 5 93487.0000 88007.3118 5.86% - 29s 0 0 88717.5241 0 4 93487.0000 88717.5241 5.10% - 30s H 0 0 91748.577778 88717.5241 3.30% - 30s H 0 0 91101.000000 88717.5241 2.62% - 30s 0 0 88717.5241 0 4 91101.0000 88717.5241 2.62% - 31s 0 2 88728.7818 0 4 91101.0000 88728.7818 2.60% - 31s H 5 5 90548.976190 88795.6364 1.94% 130 32s H 7 6 89656.636364 88795.6364 0.96% 171 32s H 8 7 89500.800000 88795.6364 0.79% 188 32s H 12 9 89472.725953 88795.6364 0.76% 200 33s H 16 8 89148.561905 88795.6364 0.40% 197 34s * 18 9 14 89137.000000 88795.6364 0.38% 177 34s H 25 6 88920.000000 88843.7059 0.09% 163 34s 27 9 88873.1906 8 2 88920.0000 88843.7059 0.09% 156 35s H 28 8 88903.622222 88843.7059 0.07% 151 35s * 29 8 10 88889.000000 88843.7059 0.05% 148 35s Cutting planes: Implied bound: 75 Explored 38 nodes (22989 simplex iterations) in 35.36 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.888900000000e+04, best bound 8.888900000000e+04, gap 0.0%