Gurobi 5.0.1 (linux64) logging started Wed Apr 24 04:06:23 2013 Optimize a model with 68224 rows, 67404 columns and 269124 nonzeros Presolve removed 82 rows and 0 columns Presolve time: 0.31s Presolved: 68142 rows, 67404 columns, 269042 nonzeros Variable types: 67322 continuous, 82 integer (82 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 7608 6.7258705e+04 1.653602e+04 0.000000e+00 5s 9047 6.7848886e+04 0.000000e+00 0.000000e+00 8s Root relaxation: objective 6.784889e+04, 9047 iterations, 8.29 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 67848.8858 0 63 - 67848.8858 - - 8s H 0 0 109620.00000 67848.8858 38.1% - 13s H 0 0 98006.000000 67848.8858 30.8% - 36s H 0 0 97557.000000 67848.8858 30.5% - 41s 0 0 86559.0015 0 20 97557.0000 86559.0015 11.3% - 52s 0 0 91065.2294 0 9 97557.0000 91065.2294 6.65% - 55s 0 0 91597.0544 0 6 97557.0000 91597.0544 6.11% - 56s 0 0 91608.1625 0 5 97557.0000 91608.1625 6.10% - 57s H 0 0 96040.233143 91608.1625 4.61% - 57s H 0 0 95262.000000 91608.1625 3.84% - 57s 0 2 91616.8036 0 5 95262.0000 91616.8036 3.83% - 58s H 1 1 94085.101003 91616.8036 2.62% 0.0 58s H 2 2 93219.831770 91666.1647 1.67% 116 59s H 4 4 92866.761222 91762.4591 1.19% 281 59s 4 6 91888.1072 3 4 92866.7612 91766.0229 1.19% 384 60s H 5 4 92821.710200 91766.0229 1.14% 307 60s H 6 5 92150.973451 91766.0229 0.42% 274 60s * 7 5 6 91919.000000 91766.0229 0.17% 260 60s Cutting planes: Implied bound: 81 MIR: 1 Explored 11 nodes (21492 simplex iterations) in 60.52 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.191900000000e+04, best bound 9.191900000000e+04, gap 0.0%