Build (method = -2) #dp: 298 Step-3' Graph: 49 vertices and 155 arcs (0.00s) Step-4' Graph: 33 vertices and 123 arcs (0.00s) #V4/#V3 = 0.67 #A4/#A3 = 0.79 Ready! (0.00s) Optimize a model with 43 rows, 124 columns and 325 nonzeros Presolve removed 6 rows and 6 columns Presolve time: 0.00s Presolved: 37 rows, 118 columns, 309 nonzeros Variable types: 0 continuous, 118 integer (0 binary) Found heuristic solution: objective 91.0000000 Found heuristic solution: objective 80.0000000 Optimize a model with 37 rows, 118 columns and 309 nonzeros Presolved: 37 rows, 118 columns, 309 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 1.780e+02 Factor NZ : 5.190e+02 Factor Ops : 8.675e+03 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 3.44855342e+02 -1.45586974e+03 1.28e+03 2.22e-16 3.11e+01 0s 1 1.27642149e+02 -7.81452347e+02 1.83e+02 5.55e-16 6.42e+00 0s 2 7.81215660e+01 -1.08254796e+02 7.02e+00 4.44e-16 8.19e-01 0s 3 5.34974383e+01 -2.86393401e+00 1.73e-02 2.22e-16 2.33e-01 0s 4 4.04362657e+01 2.74280516e+01 1.24e-03 2.57e-16 5.38e-02 0s 5 3.74899370e+01 3.40026372e+01 2.16e-04 2.34e-16 1.44e-02 0s 6 3.70166109e+01 3.69178287e+01 2.01e-06 2.22e-16 4.08e-04 0s 7 3.70000001e+01 3.69999960e+01 2.01e-11 2.22e-16 1.69e-08 0s 8 3.70000000e+01 3.70000000e+01 1.95e-14 2.22e-16 1.69e-11 0s Barrier solved model in 8 iterations and 0.00 seconds Optimal objective 3.70000000e+01 Root relaxation: objective 3.700000e+01, 59 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 37.0000000 37.00000 0.0% - 0s Explored 0 nodes (80 simplex iterations) in 0.01 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 3.700000000000e+01, best bound 3.700000000000e+01, gap 0.0% Preprocessing time: 0.01 seconds Gurobi run time: 0.01 seconds Total run time: 0.02 seconds Objective: 37 Solution: 2 x [4] 1 x [4, 10, 10] 2 x [8] 1 x [7] 1 x [5, 7] 9 x [2, 7, 9, 9] 5 x [3, 7, 10] 3 x [3, 7, 9, 10] 2 x [6] 7 x [5, 6] 1 x [2, 6, 10] 1 x [3, 3, 6] 1 x [1, 1, 6] 1 x [6, 10]