Build (method = -2) #dp: 99 Step-3' Graph: 20 vertices and 66 arcs (0.00s) Step-4' Graph: 12 vertices and 50 arcs (0.00s) #V4/#V3 = 0.60 #A4/#A3 = 0.76 Ready! (0.00s) Optimize a model with 22 rows, 51 columns and 136 nonzeros Presolve removed 6 rows and 8 columns Presolve time: 0.00s Presolved: 16 rows, 43 columns, 116 nonzeros Variable types: 0 continuous, 43 integer (0 binary) Found heuristic solution: objective 998.0000000 Found heuristic solution: objective 845.0000000 Optimize a model with 16 rows, 43 columns and 116 nonzeros Presolved: 16 rows, 43 columns, 116 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 5.600e+01 Factor NZ : 1.360e+02 Factor Ops : 1.496e+03 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 2.03274367e+03 -2.79573877e+03 2.59e+03 2.22e-16 1.39e+02 0s 1 9.13870131e+02 -5.99906552e+02 8.17e+01 3.33e-16 1.82e+01 0s 2 6.86876346e+02 2.62394096e+02 4.63e-01 1.87e-16 4.62e+00 0s 3 5.73987485e+02 5.26224970e+02 1.44e-02 1.11e-16 5.19e-01 0s 4 5.56993252e+02 5.51764847e+02 1.32e-03 1.17e-16 5.68e-02 0s 5 5.55593535e+02 5.54907871e+02 1.82e-04 8.42e-16 7.45e-03 0s 6 5.55169447e+02 5.55164630e+02 9.58e-07 4.44e-16 5.24e-05 0s 7 5.55166667e+02 5.55166667e+02 4.35e-11 3.33e-16 7.23e-11 0s Barrier solved model in 7 iterations and 0.00 seconds Optimal objective 5.55166667e+02 Root relaxation: objective 5.551667e+02, 13 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 555.16667 0 6 845.00000 555.16667 34.3% - 0s H 0 0 556.0000000 555.16667 0.15% - 0s Explored 0 nodes (19 simplex iterations) in 0.00 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 5.560000000000e+02, best bound 5.560000000000e+02, gap 0.0% Preprocessing time: 0.01 seconds Gurobi run time: 0.00 seconds Total run time: 0.01 seconds Objective: 556 Solution: 148 x [1] 3 x [1, 10] 45 x [1, 2] 34 x [6, 10] 72 x [6, 8] 72 x [3, 5] 13 x [3, 4] 125 x [4, 9] 1 x [3] 5 x [3, 9] 1 x [7, 7] 37 x [7, 7, 7]