Build (method = -2) #dp: 550 Step-3' Graph: 124 vertices and 365 arcs (0.00s) Step-4' Graph: 65 vertices and 247 arcs (0.00s) #V4/#V3 = 0.52 #A4/#A3 = 0.68 Ready! (0.00s) Optimize a model with 84 rows, 248 columns and 618 nonzeros Presolve removed 18 rows and 30 columns Presolve time: 0.00s Presolved: 66 rows, 218 columns, 576 nonzeros Variable types: 0 continuous, 218 integer (0 binary) Found heuristic solution: objective 1669.0000000 Found heuristic solution: objective 1493.0000000 Optimize a model with 66 rows, 218 columns and 576 nonzeros Presolved: 66 rows, 218 columns, 576 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 3.940e+02 Factor NZ : 1.248e+03 Factor Ops : 2.758e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 7.58566706e+03 -3.57822785e+04 2.50e+04 1.11e-16 4.48e+02 0s 1 3.55006131e+03 -1.44074469e+04 5.46e+03 4.44e-16 1.05e+02 0s 2 1.64699950e+03 -3.85542915e+03 3.93e+02 5.40e-14 1.57e+01 0s 3 1.33019388e+03 2.08934753e+02 3.90e-01 8.19e-15 2.51e+00 0s 4 1.14301061e+03 6.23216897e+02 2.10e-02 5.33e-15 1.16e+00 0s 5 1.05691546e+03 8.12051391e+02 6.37e-03 4.22e-15 5.48e-01 0s 6 1.01283017e+03 9.22793106e+02 1.29e-03 2.66e-15 2.01e-01 0s 7 1.00334742e+03 9.78877251e+02 5.40e-04 2.51e-15 5.47e-02 0s 8 9.98373384e+02 9.96131671e+02 8.39e-05 3.27e-15 5.02e-03 0s 9 9.97072117e+02 9.96933123e+02 3.76e-06 2.56e-15 3.11e-04 0s 10 9.97000072e+02 9.96999933e+02 3.39e-11 3.30e-15 3.11e-07 0s 11 9.97000000e+02 9.97000000e+02 8.61e-12 3.28e-15 3.11e-10 0s Barrier solved model in 11 iterations and 0.00 seconds Optimal objective 9.97000000e+02 Root relaxation: objective 9.970000e+02, 72 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 997.0000000 997.00000 0.0% - 0s Explored 0 nodes (72 simplex iterations) in 0.01 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 9.970000000000e+02, best bound 9.970000000000e+02, gap 0.0% Preprocessing time: 0.01 seconds Gurobi run time: 0.01 seconds Total run time: 0.02 seconds Objective: 997 Solution: 35 x [1] 53 x [1, 15] 34 x [1, 17] 31 x [1, 17, 18] 7 x [1, 19] 241 x [2] 32 x [3, 14] 102 x [3, 15] 14 x [4, 10] 30 x [5, 10, 19] 47 x [5, 11] 71 x [6, 7] 59 x [7, 9] 22 x [7, 11] 7 x [7, 11, 16] 53 x [7, 12, 13] 144 x [8, 10, 12] 12 x [9, 10, 12] 1 x [10, 11, 13] 2 x [10, 11, 13, 19]