Build (method = -2) #dp: 654 Step-3' Graph: 66 vertices and 193 arcs (0.00s) Step-4' Graph: 32 vertices and 125 arcs (0.00s) #V4/#V3 = 0.48 #A4/#A3 = 0.65 Ready! (0.00s) Optimize a model with 39 rows, 126 columns and 324 nonzeros Presolve removed 9 rows and 17 columns Presolve time: 0.00s Presolved: 30 rows, 109 columns, 292 nonzeros Variable types: 0 continuous, 109 integer (0 binary) Found heuristic solution: objective 352.0000000 Found heuristic solution: objective 351.0000000 Optimize a model with 30 rows, 109 columns and 292 nonzeros Presolved: 30 rows, 109 columns, 292 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 1.510e+02 Factor NZ : 3.770e+02 Factor Ops : 5.759e+03 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 1.37529078e+03 -3.82030872e+03 2.88e+03 2.22e-16 1.17e+02 0s 1 3.10829402e+02 -1.28316934e+03 2.37e+02 5.55e-16 1.35e+01 0s 2 1.06091164e+02 -3.65429157e+02 7.39e+00 1.11e-14 2.24e+00 0s 3 9.78811296e+01 -6.20778053e+01 2.21e-01 2.44e-15 7.13e-01 0s 4 6.27840258e+01 3.59847583e-01 2.86e-02 1.11e-15 2.78e-01 0s 5 5.30537721e+01 4.05096513e+01 7.63e-03 2.86e-16 5.58e-02 0s 6 5.11826324e+01 4.77223340e+01 3.16e-03 2.34e-16 1.54e-02 0s 7 5.06612083e+01 5.03609308e+01 1.47e-05 2.40e-16 1.33e-03 0s 8 5.05715502e+01 5.05708515e+01 2.06e-14 1.67e-16 3.11e-06 0s 9 5.05714286e+01 5.05714286e+01 3.74e-14 2.71e-16 3.34e-12 0s Barrier solved model in 9 iterations and 0.00 seconds Optimal objective 5.05714286e+01 Root relaxation: objective 5.057143e+01, 72 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 50.57143 0 8 351.00000 50.57143 85.6% - 0s H 0 0 51.0000000 50.57143 0.84% - 0s Explored 0 nodes (100 simplex iterations) in 0.01 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 5.100000000000e+01, best bound 5.100000000000e+01, gap 0.0% Preprocessing time: 0.01 seconds Gurobi run time: 0.01 seconds Total run time: 0.01 seconds Objective: 51 Solution: 3 x [3, 3, 3, 3, 3, 4, 7] 1 x [2, 2, 2, 2, 5, 5, 5] 3 x [1, 1, 3, 3, 3, 3, 3] 1 x [3, 5, 5, 5, 5, 5, 7] 1 x [3, 3, 3, 7] 33 x [3, 3, 3, 3, 3, 6, 7] 9 x [3, 3, 3, 3, 3, 7, 7]