Warning: Output names have been modified to conform to LP format. Default row names c1, c2 ... being created. Tried aggregator 5 times. MIP Presolve eliminated 191522 rows and 35380 columns. MIP Presolve modified 23946 coefficients. Aggregator did 1261 substitutions. Reduced MIP has 61742 rows, 11309 columns, and 244382 nonzeros. Presolve time = 4.47 sec. Clique table members: 10608. MIP emphasis: balance optimality and feasibility. MIP search method: dynamic search. Parallel mode: none, using 1 thread. Root relaxation solution time = 0.51 sec. Nodes Cuts/ Node Left Objective IInf Best Integer Best Node ItCnt Gap 0 0 -2928.2222 185 -2928.2222 1513 * 0+ 0 -2919.0000 -2928.2222 1513 0.32% * 0 0 integral 0 -2927.0000 Cuts: 340 1566 0.00% 0 0 cutoff -2927.0000 -2927.0000 1566 0.00% GUB cover cuts applied: 2 Clique cuts applied: 94 Cover cuts applied: 1 Implied bound cuts applied: 14 Zero-half cuts applied: 26 Gomory fractional cuts applied: 18 >>>>>>> Objval = -2927.000000 (int)-2927 Warning: Output names have been modified to conform to LP format. Default row names c1, c2 ... being created. MIP start values provide initial solution with objective 1585.0000. Tried aggregator 5 times. MIP Presolve eliminated 191510 rows and 35371 columns. MIP Presolve modified 23946 coefficients. Aggregator did 1258 substitutions. Reduced MIP has 61757 rows, 11321 columns, and 247336 nonzeros. Presolve time = 4.51 sec. Clique table members: 10583. MIP emphasis: balance optimality and feasibility. MIP search method: dynamic search. Parallel mode: none, using 1 thread. Root relaxation solution time = 9.65 sec. Nodes Cuts/ Node Left Objective IInf Best Integer Best Node ItCnt Gap 0 0 399.6572 697 1585.0000 399.6572 13050 74.79% 0 0 526.5000 32 1585.0000 Cuts: 459 13311 66.78% 0 0 530.0000 4 1585.0000 Cuts: 13 13323 66.56% * 0+ 0 530.0000 530.0000 13323 0.00% 0 0 cutoff 530.0000 530.0000 13323 0.00% Elapsed time = 16.54 sec. (tree size = 0.00 MB, solutions = 2) GUB cover cuts applied: 1 Clique cuts applied: 215 Cover cuts applied: 3 Implied bound cuts applied: 52 Zero-half cuts applied: 32 Gomory fractional cuts applied: 4 >>>>>>> Objval = 530.000000 (int)530 Warning: Output names have been modified to conform to LP format. Default row names c1, c2 ... being created. MIP start values provide initial solution with objective 2287.0000. Tried aggregator 5 times. Presolve has eliminated 190950 rows and 35152 columns... Aggregator has done 1206 substitutions... MIP Presolve eliminated 190950 rows and 35152 columns. MIP Presolve modified 23973 coefficients. Aggregator did 1206 substitutions. Reduced MIP has 62369 rows, 11592 columns, and 255517 nonzeros. Presolve time = 5.14 sec. Clique table members: 10414. MIP emphasis: balance optimality and feasibility. MIP search method: dynamic search. Parallel mode: none, using 1 thread. Root relaxation solution time = 12.49 sec. Nodes Cuts/ Node Left Objective IInf Best Integer Best Node ItCnt Gap 0 0 1794.5278 139 2287.0000 1794.5278 20158 21.53% 0 0 1907.0000 24 2287.0000 Cuts: 306 20919 16.62% 0 0 1932.6667 63 2287.0000 Cuts: 75 20963 15.49% * 0 0 integral 0 1942.0000 Cuts: 16 20965 0.00% 0 0 cutoff 1942.0000 1942.0000 20965 0.00% Elapsed time = 20.43 sec. (tree size = 0.00 MB, solutions = 2) GUB cover cuts applied: 1 Clique cuts applied: 177 Implied bound cuts applied: 37 Zero-half cuts applied: 15 Gomory fractional cuts applied: 8