Issues

• Incorrect "optimal" status on small nonconvex NLPs (SCIP 10.0.2 via GAMS 53.5.1)

  scipopt/scip#229 · Filter by author epcarvalho1618 opened on Oct 5, 2026
  1

  

• IIS finder returns an empty, feasible "IIS" when a free integer variable appears in a single constraint

  Bug

  scipopt/scip#225 · Filter by author yanissrairi opened on Oct 1, 2026
  6

• SCIP crashes after 1-2 days with message "ERROR: Insufficient memory for reallocation of 18446744065119617024 bytes."

  Bug

  scipopt/scip#219 · Filter by author retrohun opened on Sep 21, 2026
  1

  

• SCIPsolveConcurrent(): inconsistent misc/avoidmemout handling and unexpected sequential fallback

  Feature

  scipopt/scip#216 · Filter by author nnrn opened on Sep 13, 2026
  

• Wrong solution to a pseudo-Boolean instance

  Feature

  scipopt/scip#214 · Filter by author marekpiotrow opened on Aug 6, 2026
  6

• Segmentation fault when solving a (quadratic convex) nonlinear problem in a memory-limited Docker

  Bug

  scipopt/scip#211 · Filter by author Rastaban-TzW opened on Jul 16, 2026
  5

• SCIP writes square brackets into LP files without raising an error

  Task

  scipopt/scip#210 · Filter by author Rastaban-TzW opened on Jul 16, 2026
  2

• Why is scip.Nodepru used in some PySCIPOpt code but not present in the official API?

  scipopt/scip#206 · Filter by author ya-o97 opened on Jun 19, 2026
  7

  

• Missing feature: symmetry detection in exact mode

  Feature

  scipopt/scip#205 · Filter by author gmagoon opened on Jun 18, 2026
  1

  

• SCIP exact mode fails with "SCIP: error in LP solver!" on attached MPS instances

  Bug

  scipopt/scip#203 · Filter by author Ingsoo opened on Jun 1, 2026
  

• Wrong infeasible with logicals

  Bug

  scipopt/scip#202 · Filter by author glebbelov opened on May 27, 2026

• Feature request: Hard constraints for IIS extraction

  Feature

  scipopt/scip#201 · Filter by author OrestisLomis opened on May 20, 2026
  12

  

• Solution quality regression for set cover problems with constraints on the number of selected columns

  Feature

  scipopt/scip#195 · Filter by author tobiass-sdl opened on Apr 13, 2026
  7

  

• Proposal: Compile-time I/O abstraction for embedding SCIP as a library

  Feature

  scipopt/scip#194 · Filter by author bnaras opened on Apr 7, 2026
  2

• Presolving renders problem infeasible

  Bug

  scipopt/scip#190 · Filter by author rajgoel opened on Feb 14, 2026
  3

• Turning off all presolving operations in SCIPpresolve() + retrieving symmetry information

  scipopt/scip#189 · Filter by author FZixuan opened on Feb 9, 2026
  1

  

• SCIP 10 crash with IIS

  Feature

  scipopt/scip#180 · Filter by author rgazizov opened on Nov 27, 2025
  5

• SCIP gets stuck after upgrade to 9.2.4

  Bug

  scipopt/scip#172 · Filter by author lhoegh opened on Oct 27, 2025
  3

• Suboptimal solution for multilinear relations

  Bug

  scipopt/scip#162 · Filter by author ThibautCoudroy opened on Aug 7, 2025
  6

  

• scip generates inconsistent solutions with non-default parameters

  Bug

  scipopt/scip#142 · Filter by author zxt5 opened on May 17, 2025
  1

  

• scip crashes with heurExecAlns(SCIP *, SCIP_HEUR *, SCIP_HEURTIMING, unsigned int, SCIP_RESULT *): Assertion `FALSE' failed

  Bug

  scipopt/scip#139 · Filter by author zxt5 opened on May 7, 2025
  3

• SCIP tests fail when using CLP as the solver

  Bug

  scipopt/scip#131 · Filter by author adbuerger opened on Apr 9, 2025
  2

• Incorrect Optimal Solution from scip

  Bug

  scipopt/scip#126 · Filter by author zxt5 opened on Feb 4, 2025
  7

  

• SCIP tests fail when using HiGHs as the solver

  Bug

  scipopt/scip#102 · Filter by author orthorhombic opened on Aug 20, 2024
  10

  

• [Feature request] Writing a problem to the AMPL format

  Feature

  scipopt/scip#100 · Filter by author malipivo opened on Aug 15, 2024
  1