Build (method = -2) #dp: 134 Step-3' Graph: 30 vertices and 77 arcs (0.00s) Step-4' Graph: 9 vertices and 35 arcs (0.00s) #V4/#V3 = 0.30 #A4/#A3 = 0.45 Ready! (0.00s) Optimize a model with 13 rows, 36 columns and 100 nonzeros Presolve removed 2 rows and 2 columns Presolve time: 0.00s Presolved: 11 rows, 34 columns, 96 nonzeros Variable types: 0 continuous, 34 integer (0 binary) Found heuristic solution: objective 182.0000000 Found heuristic solution: objective 165.0000000 Optimize a model with 11 rows, 34 columns and 96 nonzeros Presolved: 11 rows, 34 columns, 96 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 3.900e+01 Factor NZ : 6.600e+01 Factor Ops : 5.060e+02 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 5.09823144e+02 -1.46090022e+03 5.07e+02 2.22e-16 8.16e+01 0s 1 1.04925351e+02 -4.54349715e+02 1.56e-13 2.22e-16 7.77e+00 0s 2 5.69986429e+01 -1.02255588e+02 1.78e-14 1.11e-16 2.21e+00 0s 3 3.18599407e+01 7.73279571e+00 1.24e-14 1.14e-16 3.35e-01 0s 4 2.66380217e+01 2.48973363e+01 4.33e-15 2.22e-16 2.42e-02 0s 5 2.61433382e+01 2.61415723e+01 3.28e-14 1.58e-16 2.45e-05 0s 6 2.61428571e+01 2.61428571e+01 2.07e-13 2.22e-16 2.46e-11 0s Barrier solved model in 6 iterations and 0.00 seconds Optimal objective 2.61428571e+01 Root relaxation: objective 2.614286e+01, 23 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 26.14286 0 9 165.00000 26.14286 84.2% - 0s H 0 0 27.0000000 26.14286 3.17% - 0s Explored 0 nodes (27 simplex iterations) in 0.00 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 2.700000000000e+01, best bound 2.700000000000e+01, gap 0.0% Preprocessing time: 0.01 seconds Gurobi run time: 0.00 seconds Total run time: 0.01 seconds Objective: 27 Solution: 1 x [1, 1, 2, 3] 3 x [1, 1, 1, 1, 2, 3, 4] 14 x [1, 1, 1, 1, 2, 4, 4] 1 x [1, 1, 1, 3] 8 x [1, 1, 1, 1, 3, 4, 4]