Build (method = -2) #dp: 106 Step-3' Graph: 26 vertices and 71 arcs (0.00s) Step-4' Graph: 17 vertices and 53 arcs (0.00s) #V4/#V3 = 0.65 #A4/#A3 = 0.75 Ready! (0.00s) Optimize a model with 27 rows, 54 columns and 132 nonzeros Presolve removed 7 rows and 9 columns Presolve time: 0.00s Presolved: 20 rows, 45 columns, 109 nonzeros Variable types: 0 continuous, 45 integer (0 binary) Found heuristic solution: objective 655.0000000 Found heuristic solution: objective 654.0000000 Found heuristic solution: objective 653.0000000 Found heuristic solution: objective 585.0000000 Optimize a model with 20 rows, 45 columns and 109 nonzeros Presolve removed 1 rows and 1 columns Presolved: 19 rows, 44 columns, 109 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 7.400e+01 Factor NZ : 1.900e+02 Factor Ops : 2.470e+03 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 1.32890330e+03 -3.81968421e+03 2.37e+03 1.11e-16 1.97e+02 0s 1 6.95728325e+02 -9.62583231e+02 2.26e+02 6.66e-16 2.75e+01 0s 2 5.90210349e+02 3.92440983e+02 9.50e+00 5.00e-15 2.29e+00 0s 3 5.83106301e+02 4.94802462e+02 2.65e+00 1.89e-15 9.76e-01 0s 4 5.80558523e+02 5.76046712e+02 4.12e-13 4.93e-16 4.85e-02 0s 5 5.80005064e+02 5.79978445e+02 1.71e-13 5.24e-16 2.86e-04 0s 6 5.80000005e+02 5.79999978e+02 1.14e-13 5.12e-16 2.86e-07 0s 7 5.80000000e+02 5.80000000e+02 9.95e-14 3.50e-16 2.93e-13 0s Barrier solved model in 7 iterations and 0.00 seconds Optimal objective 5.80000000e+02 Root relaxation: objective 5.800000e+02, 29 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 580.0000000 580.00000 0.0% - 0s Explored 0 nodes (29 simplex iterations) in 0.00 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 5.800000000000e+02, best bound 5.800000000000e+02, gap 0.0% Preprocessing time: 0.01 seconds Gurobi run time: 0.00 seconds Total run time: 0.01 seconds Objective: 580 Solution: 54 x [1] 76 x [1, 7] 127 x [2] 17 x [2, 8] 5 x [2, 10] 72 x [3] 5 x [3, 6, 9, 10] 75 x [3, 10] 75 x [4, 5] 2 x [4, 8] 56 x [4, 8, 9] 11 x [4, 8, 9, 10] 5 x [4, 8, 10]