Open-solver (SCIP/HiGHS/IPOPT/Couenne) validation of GDPlib methanol and cstr optima, plus an open-stack reproduction of Pyomo issue 3939 (GDPopt-GLOA McCormick cut bug).
minlp benchmarks pyomo scip ipopt process-systems-engineering highs gdplib couenne open-source-solvers
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Updated
May 25, 2026 - Python