Originally posted by: jocelynW

Thank you for your time in advance.

AMPL/CPLEX crashed with exit code 255? Anyone knows what's going on?

---

CPLEX 12.1.0: timelimit = 21600

timing = 1

mipdisplay = 2

nodefile = 3

MIP Presolve eliminated 811 rows and 26421 columns.

MIP Presolve modified 25721 coefficients.

Reduced MIP has 8645 rows, 16233 columns, and 40058 nonzeros.

Reduced MIP has 8120 binaries, 0 generals, 0 SOSs, and 0 indicators.

Clique table members: 532.

MIP emphasis: balance optimality and feasibility.

MIP search method: dynamic search.

Parallel mode: deterministic, using up to 4 threads.

Root relaxation solution time = 0.36 sec.

Nodes Cuts/

Node Left Objective IInf Best Integer Best Node ItCnt Gap

• 0+ 0 2699.3268 3841 ---

0 0 49.8860 1421 2699.3268 49.8860 3841 98.15%

• 0+ 0 99.0796 49.8860 3841 49.65%

0 2 49.8860 1421 99.0796 49.8860 3841 49.65%

100 102 57.3894 1395 99.0796 50.4471 4111 49.08%

200 202 61.3167 1380 99.0796 50.4471 4328 49.08%

300 302 61.0839 1376 99.0796 50.4471 4590 49.08%

400 402 62.9485 1362 99.0796 50.4471 4929 49.08%

500 502 63.9945 1347 99.0796 50.4471 5280 49.08%

There may be further error information in the clone logs.

exit code 255
<BREAK>
ampl: quit
#CPLEXOptimizers
#DecisionOptimization

Originally posted by: SystemAdmin

Did the solver create any clone log files (they would be called clone*.log)? If so, does any of them mention a problem?
#CPLEXOptimizers
#DecisionOptimization

Originally posted by: jocelynW

I didn't find one in the working directory. Do I need to look for it in a different place?
#CPLEXOptimizers
#DecisionOptimization