Build (method = -2) #dp: 6500 Step-3' Graph: 118 vertices and 1457 arcs (0.02s) Step-4' Graph: 80 vertices and 1381 arcs (0.03s) #V4/#V3 = 0.68 #A4/#A3 = 0.95 Ready! (0.03s) Optimize a model with 156 rows, 1382 columns and 3992 nonzeros Presolve removed 26 rows and 40 columns Presolve time: 0.01s Presolved: 130 rows, 1342 columns, 3889 nonzeros Variable types: 0 continuous, 1342 integer (0 binary) Found heuristic solution: objective 2.500000e+08 Optimize a model with 130 rows, 1342 columns and 3889 nonzeros Presolved: 130 rows, 1342 columns, 3889 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 2.531e+03 Factor NZ : 4.670e+03 Factor Ops : 2.282e+05 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 4.78309661e+09 -1.69412083e+10 4.06e+10 2.22e-16 5.15e+07 0s 1 1.35084218e+09 -4.01191889e+09 6.95e+09 8.88e-16 8.92e+06 0s 2 3.52222008e+08 -1.47143484e+09 8.40e+08 2.22e-14 1.39e+06 0s 3 1.88939487e+08 -4.68228206e+08 2.19e+07 9.99e-15 2.53e+05 0s 4 1.53288452e+08 -2.51256449e+08 6.41e+06 5.88e-15 1.51e+05 0s 5 1.28731485e+08 -6.80634822e+07 2.96e+06 2.33e-15 7.27e+04 0s 6 1.12431492e+08 4.57037758e+06 1.29e+06 9.99e-16 3.96e+04 0s 7 1.02759002e+08 6.13350811e+07 4.49e+05 6.66e-16 1.52e+04 0s 8 9.98599163e+07 8.28140019e+07 1.82e+05 7.70e-16 6.24e+03 0s 9 9.79366637e+07 9.07166932e+07 5.69e+04 7.50e-16 2.64e+03 0s 10 9.70132055e+07 9.31464901e+07 1.24e+04 7.48e-16 1.41e+03 0s 11 9.66655310e+07 9.56566963e+07 1.95e+03 7.53e-16 3.69e+02 0s 12 9.66044317e+07 9.61072515e+07 1.03e+03 6.10e-16 1.82e+02 0s 13 9.65510275e+07 9.61936656e+07 4.65e+02 7.47e-16 1.31e+02 0s 14 9.65306936e+07 9.64000329e+07 2.57e+02 6.84e-16 4.77e+01 0s 15 9.65198828e+07 9.64987767e+07 3.08e+01 7.77e-16 7.71e+00 0s 16 9.65134226e+07 9.65130201e+07 1.94e-07 7.77e-16 1.47e-01 0s 17 9.65133333e+07 9.65133333e+07 1.49e-08 2.39e-11 3.84e-06 0s Barrier solved model in 17 iterations and 0.02 seconds Optimal objective 9.65133333e+07 Root relaxation: objective 9.651333e+07, 1180 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 9.6513e+07 0 2 2.5000e+08 9.6513e+07 61.4% - 0s H 0 0 9.651333e+07 9.6513e+07 0.00% - 0s Explored 0 nodes (1619 simplex iterations) in 0.09 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 9.651333400000e+07, best bound 9.651333333333e+07, gap 0.0000% Preprocessing time: 0.04 seconds Gurobi run time: 0.09 seconds Total run time: 0.13 seconds Objective: 96513334 Solution: 870001 x [31, 76] 129999 x [1, 11, 76] 1000000 x [6, 7, 75] 1000000 x [33, 74] 2670000 x [34, 73] 330000 x [5, 10, 73] 3000000 x [35, 72] 3000000 x [36, 71] 2500 x [1, 16, 71] 1000000 x [6, 11, 71] 2997500 x [8, 9, 71] 1000000 x [37, 70] 2000000 x [1, 17, 70] 1000000 x [9, 10, 69] 1000000 x [39, 68] 330000 x [3, 20, 67] 2670000 x [10, 13, 67] 2000000 x [41, 66] 417500 x [3, 21, 66] 1582500 x [8, 16, 66] 2000000 x [42, 65] 1000000 x [43, 64] 495000 x [3, 23, 64] 1340000 x [5, 21, 64] 3000000 x [12, 14, 64] 1165000 x [13, 13, 64] 3000000 x [44, 63] 915000 x [7, 20, 63] 60000 x [11, 16, 63] 25000 x [12, 15, 63] 2000000 x [45, 62] 645000 x [1, 27, 62] 355000 x [12, 16, 62] 1000000 x [46, 61] 1002500 x [2, 27, 61] 822500 x [7, 22, 61] 1905000 x [11, 18, 61] 1270000 x [12, 17, 61] 2000000 x [47, 60] 262500 x [7, 23, 60] 1420000 x [8, 22, 60] 317500 x [15, 15, 60] 3000000 x [48, 59] 2000000 x [2, 29, 59] 2000000 x [6, 25, 59] 3000000 x [49, 58] 660000 x [12, 20, 58] 340000 x [15, 17, 58] 2757500 x [3, 30, 57] 1000000 x [4, 29, 57] 242500 x [12, 21, 57] 2000000 x [50, 56] 4000000 x [51, 55] 1000000 x [52, 54] 1000000 x [53, 53] 905000 x [11, 27, 52] 1095000 x [18, 20, 52] 3000000 x [19, 19, 52] 222500 x [1, 38, 51] 1330000 x [5, 34, 51] 447500 x [12, 27, 51] 997500 x [2, 38, 50] 2500 x [9, 31, 50] 3000000 x [21, 28, 42] 3000000 x [23, 29, 40] 757500 x [22, 31, 39] 1242500 x [23, 30, 39] 1000000 x [26, 27, 39] 1390000 x [17, 38, 38] 1000000 x [24, 32, 37] 123333 x [31, 31, 31] 1 x [1, 11]