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 191521 rows and 35380 columns. MIP Presolve modified 23948 coefficients. Aggregator did 1261 substitutions. Reduced MIP has 61743 rows, 11309 columns, and 244388 nonzeros. Presolve time = 4.66 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 = 0.52 sec. Nodes Cuts/ Node Left Objective IInf Best Integer Best Node ItCnt Gap 0 0 -2928.2222 126 -2928.2222 1466 * 0+ 0 -2920.0000 -2928.2222 1466 0.28% 0 0 -2927.0000 78 -2920.0000 Cuts: 395 1564 0.24% * 0+ 0 -2924.0000 -2927.0000 1564 0.10% * 0 0 integral 0 -2927.0000 Cuts: 13 1575 0.00% 0 0 cutoff -2927.0000 -2927.0000 1575 0.00% GUB cover cuts applied: 1 Clique cuts applied: 132 Implied bound cuts applied: 19 Zero-half cuts applied: 23 Gomory fractional cuts applied: 12 >>>>>>> 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 1600.0000. Tried aggregator 5 times. MIP Presolve eliminated 191509 rows and 35371 columns. MIP Presolve modified 23947 coefficients. Aggregator did 1258 substitutions. Reduced MIP has 61758 rows, 11321 columns, and 247342 nonzeros. Presolve time = 4.62 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 = 10.51 sec. Nodes Cuts/ Node Left Objective IInf Best Integer Best Node ItCnt Gap 0 0 399.6572 688 1600.0000 399.6572 13173 75.02% 0 0 526.5000 26 1600.0000 Cuts: 421 13449 67.09% * 0 0 integral 0 530.0000 Cuts: 13 13456 0.00% 0 0 cutoff 530.0000 530.0000 13456 0.00% Elapsed time = 16.96 sec. (tree size = 0.00 MB, solutions = 2) GUB cover cuts applied: 1 Clique cuts applied: 214 Cover cuts applied: 3 Implied bound cuts applied: 34 Zero-half cuts applied: 13 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 2313.0000. Presolve has eliminated 182571 rows and 35000 columns... Aggregator has done 1205 substitutions... Tried aggregator 5 times. MIP Presolve eliminated 190949 rows and 35152 columns. MIP Presolve modified 23974 coefficients. Aggregator did 1206 substitutions. Reduced MIP has 62370 rows, 11592 columns, and 255523 nonzeros. Presolve time = 5.36 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 = 13.70 sec. Nodes Cuts/ Node Left Objective IInf Best Integer Best Node ItCnt Gap 0 0 1794.5278 135 2313.0000 1794.5278 20188 22.42% 0 0 1907.0000 24 2313.0000 Cuts: 306 20941 17.55% 0 0 1926.5000 35 2313.0000 Cuts: 13 20956 16.71% * 0+ 0 1942.0000 1926.5000 20982 0.80% 0 0 cutoff 1942.0000 1926.5000 20982 0.80% Elapsed time = 21.53 sec. (tree size = 0.00 MB, solutions = 2) GUB cover cuts applied: 1 Clique cuts applied: 141 Implied bound cuts applied: 10 Zero-half cuts applied: 12 Gomory fractional cuts applied: 7