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 191561 rows and 35391 columns. MIP Presolve modified 23919 coefficients. Aggregator did 1263 substitutions. Reduced MIP has 61701 rows, 11296 columns, and 244201 nonzeros. Presolve time = 4.51 sec. Clique table members: 10600. MIP emphasis: balance optimality and feasibility. MIP search method: dynamic search. Parallel mode: none, using 1 thread. Root relaxation solution time = 0.58 sec. Nodes Cuts/ Node Left Objective IInf Best Integer Best Node ItCnt Gap 0 0 -2925.7222 174 -2925.7222 1664 * 0+ 0 -2916.0000 -2925.7222 1664 0.33% * 0 0 integral 0 -2924.0000 Cuts: 336 1755 0.00% 0 0 cutoff -2924.0000 -2924.0000 1755 0.00% GUB cover cuts applied: 1 Clique cuts applied: 48 Cover cuts applied: 1 Implied bound cuts applied: 17 Zero-half cuts applied: 20 Gomory fractional cuts applied: 17 >>>>>>> Objval = -2924.000000 (int)-2924 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 1613.0000. Tried aggregator 5 times. MIP Presolve eliminated 191548 rows and 35381 columns. MIP Presolve modified 23920 coefficients. Aggregator did 1260 substitutions. Reduced MIP has 61717 rows, 11309 columns, and 247149 nonzeros. Presolve time = 4.51 sec. Clique table members: 10577. MIP emphasis: balance optimality and feasibility. MIP search method: dynamic search. Parallel mode: none, using 1 thread. Root relaxation solution time = 9.95 sec. Nodes Cuts/ Node Left Objective IInf Best Integer Best Node ItCnt Gap 0 0 381.2358 689 1613.0000 381.2358 13412 76.36% 0 0 524.5000 26 1613.0000 Cuts: 496 13659 67.48% * 0 0 integral 0 528.0000 Cuts: 12 13667 0.00% 0 0 cutoff 528.0000 528.0000 13667 0.00% Elapsed time = 16.30 sec. (tree size = 0.00 MB, solutions = 2) GUB cover cuts applied: 1 Clique cuts applied: 216 Cover cuts applied: 3 Implied bound cuts applied: 48 Zero-half cuts applied: 28 Gomory fractional cuts applied: 5 >>>>>>> Objval = 528.000000 (int)528 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 2280.0000. Tried aggregator 5 times. Presolve has eliminated 190992 rows and 35162 columns... Aggregator has done 1208 substitutions... Presolve has improved bounds 2 times... MIP Presolve eliminated 190992 rows and 35162 columns. MIP Presolve modified 23961 coefficients. Aggregator did 1208 substitutions. Reduced MIP has 62325 rows, 11580 columns, and 255303 nonzeros. Presolve time = 5.16 sec. Clique table members: 10408. MIP emphasis: balance optimality and feasibility. MIP search method: dynamic search. Parallel mode: none, using 1 thread. Root relaxation solution time = 13.08 sec. Nodes Cuts/ Node Left Objective IInf Best Integer Best Node ItCnt Gap 0 0 1786.6944 172 2280.0000 1786.6944 19946 21.64% 0 0 1909.0000 24 2280.0000 Cuts: 297 20832 16.27% 0 0 1928.5000 35 2280.0000 Cuts: 13 20848 15.42% * 0+ 0 1944.0000 1928.5000 20875 0.80% 0 0 cutoff 1944.0000 1928.5000 20875 0.80% Elapsed time = 20.71 sec. (tree size = 0.00 MB, solutions = 2) GUB cover cuts applied: 1 Clique cuts applied: 99 Implied bound cuts applied: 9 Zero-half cuts applied: 11 Gomory fractional cuts applied: 9