Build (method = -2) #dp: 221 Step-3' Graph: 62 vertices and 179 arcs (0.00s) Step-4' Graph: 21 vertices and 97 arcs (0.00s) #V4/#V3 = 0.34 #A4/#A3 = 0.54 Ready! (0.00s) Optimize a model with 41 rows, 98 columns and 256 nonzeros Presolve removed 11 rows and 13 columns Presolve time: 0.00s Presolved: 30 rows, 85 columns, 221 nonzeros Variable types: 0 continuous, 85 integer (0 binary) Found heuristic solution: objective 1796.0000000 Found heuristic solution: objective 1408.0000000 Optimize a model with 30 rows, 85 columns and 221 nonzeros Presolved: 30 rows, 85 columns, 221 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 1.120e+02 Factor NZ : 2.900e+02 Factor Ops : 3.300e+03 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 7.93143813e+03 -1.31302955e+04 1.78e+04 2.22e-16 4.22e+02 0s 1 3.03367386e+03 -4.47963036e+03 2.54e+03 5.55e-16 7.39e+01 0s 2 1.57464644e+03 -3.29006665e+02 1.40e+02 9.99e-16 1.14e+01 0s 3 1.16264573e+03 7.89569303e+02 6.01e+00 2.78e-16 2.08e+00 0s 4 1.00316919e+03 9.16609023e+02 9.78e-01 4.44e-16 4.80e-01 0s 5 9.68578158e+02 9.60177028e+02 8.82e-02 2.78e-16 4.65e-02 0s 6 9.65412239e+02 9.65290625e+02 2.47e-03 4.44e-16 6.75e-04 0s 7 9.65333340e+02 9.65333330e+02 6.62e-08 4.44e-16 5.54e-08 0s 8 9.65333333e+02 9.65333333e+02 1.65e-12 2.22e-16 5.54e-11 0s Barrier solved model in 8 iterations and 0.00 seconds Optimal objective 9.65333333e+02 Root relaxation: objective 9.653333e+02, 22 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 965.33333 0 7 1408.00000 965.33333 31.4% - 0s H 0 0 966.0000000 965.33333 0.07% - 0s Explored 0 nodes (25 simplex iterations) in 0.00 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 9.660000000000e+02, best bound 9.660000000000e+02, gap 0.0% Preprocessing time: 0.01 seconds Gurobi run time: 0.00 seconds Total run time: 0.01 seconds Objective: 966 Solution: 41 x [1] 113 x [1, 19] 4 x [2] 54 x [2, 18] 89 x [2, 20] 20 x [3, 17] 22 x [4, 11] 76 x [4, 16] 96 x [5, 12] 12 x [5, 13] 140 x [6, 10] 1 x [6, 17] 69 x [7, 9] 12 x [7, 11] 3 x [7, 17] 99 x [8, 9] 1 x [11] 109 x [13, 15, 17] 5 x [14, 16, 17]