Welcome to IBM(R) ILOG(R) CPLEX(R) Interactive Optimizer 20.1.0.0 with Simplex, Mixed Integer & Barrier Optimizers 5725-A06 5725-A29 5724-Y48 5724-Y49 5724-Y54 5724-Y55 5655-Y21 Copyright IBM Corp. 1988, 2020. All Rights Reserved. Type 'help' for a list of available commands. Type 'help' followed by a command name for more information on commands. CPLEX> New value for absolute objective gap: 0 CPLEX> New value for intensity for populating the MIP solution pool: 4 CPLEX> New value for solutions limit for each populate call: 10 CPLEX> New value for capacity of solution pool: 10 CPLEX> New value for variables to include in .sol and .mst files: 1 CPLEX> Problem 'boomerang.lp' read. Read time = 0.50 sec. (54.14 ticks) CPLEX> Version identifier: 20.1.0.0 | 2020-11-10 | 9bedb6d68 CPXPARAM_Output_WriteLevel 1 CPXPARAM_MIP_Pool_Capacity 10 CPXPARAM_MIP_Pool_Intensity 4 CPXPARAM_MIP_Limits_Populate 10 CPXPARAM_MIP_Pool_AbsGap 0 Populate: phase I Tried aggregator 2 times. MIP Presolve eliminated 360 rows and 29605 columns. MIP Presolve modified 185418 coefficients. Aggregator did 1 substitutions. Reduced MIP has 1963 rows, 75385 columns, and 2756536 nonzeros. Reduced MIP has 75385 binaries, 0 generals, 0 SOSs, and 0 indicators. Presolve time = 2.24 sec. (3252.16 ticks) Tried aggregator 2 times. MIP Presolve eliminated 56 rows and 4228 columns. MIP Presolve modified 5857 coefficients. Aggregator did 2 substitutions. Reduced MIP has 1900 rows, 71155 columns, and 2603755 nonzeros. Reduced MIP has 71155 binaries, 0 generals, 0 SOSs, and 0 indicators. Presolve time = 1.72 sec. (2632.63 ticks) Probing fixed 23769 vars, tightened 0 bounds. Probing time = 19.68 sec. (7239.01 ticks) Cover probing fixed 271 vars, tightened 0 bounds. Clique table members: 71875. MIP emphasis: balance optimality and feasibility. MIP search method: dynamic search. Parallel mode: deterministic, using up to 8 threads. Root relaxation solution time = 25.34 sec. (11284.88 ticks) Nodes Cuts/ Node Left Objective IInf Best Integer Best Bound ItCnt Gap 0 0 0.0000 1102 0.0000 8670 0 0 0.0000 1044 ZeroHalf: 2 26306 0 0 0.0000 1015 ZeroHalf: 1 54574 Repeating presolve. Tried aggregator 2 times. MIP Presolve eliminated 242 rows and 27730 columns. MIP Presolve modified 12541 coefficients. Aggregator did 2 substitutions. Reduced MIP has 1642 rows, 43423 columns, and 1589704 nonzeros. Reduced MIP has 43423 binaries, 0 generals, 0 SOSs, and 0 indicators. Presolve time = 0.93 sec. (1562.07 ticks) Tried aggregator 1 time. MIP Presolve eliminated 0 rows and 15 columns. MIP Presolve modified 178 coefficients. Reduced MIP has 1642 rows, 43408 columns, and 1589206 nonzeros. Reduced MIP has 43408 binaries, 0 generals, 0 SOSs, and 0 indicators. Presolve time = 0.57 sec. (1054.04 ticks) Represolve time = 3.88 sec. (3791.45 ticks) Probing fixed 7264 vars, tightened 0 bounds. Probing time = 7.33 sec. (3071.87 ticks) Cover probing fixed 14 vars, tightened 0 bounds. Clique table members: 51095. MIP emphasis: balance optimality and feasibility. MIP search method: dynamic search. Parallel mode: deterministic, using up to 8 threads. Root relaxation solution time = 16.17 sec. (9027.04 ticks) Nodes Cuts/ Node Left Objective IInf Best Integer Best Bound ItCnt Gap 0 0 0.0000 982 0.0000 62964 0 0 0.0000 967 Cuts: 20 93871 0 0 0.0000 1003 Cuts: 5 119771 0 0 0.0000 949 Cuts: 10 146132 0 0 0.0000 949 Cuts: 6 171193 Clique cuts applied: 8 Zero-half cuts applied: 5 Root node processing (before b&c): Real time = 1100.20 sec. (1167244.90 ticks) Parallel b&c, 8 threads: Real time = 0.00 sec. (0.00 ticks) Sync time (average) = 0.00 sec. Wait time (average) = 0.00 sec. ------------ Total (root+branch&cut) = 1100.20 sec. (1167244.90 ticks) Populate - Aborted, no integer solution. Current MIP best bound = 0.0000000000e+00 (gap is infinite) Solution time = 1100.21 sec. Iterations = 183625 Nodes = 0 (1) Deterministic time = 1167245.61 ticks (1060.93 ticks/sec) CPLEX> CPLEX Error 1217: No solution exists. No file written. CPLEX>