USER'S GUIDE

  • AIMMS Basics
  • Creating and Managing a Model
  • Data Management
  • AIMMS and Solvers
    • AIMMS IDE
    • Baron
    • CBC
    • CONOPT
    • COPT
    • CP Optimizer
      • CP Optimizer
      • CP Optimizer to AIMMS Mapping
      • AIMMS to CP Optimizer Mapping
      • CP Optimizer Options
        • General
        • Inference
        • Parallel
        • Preprocessing
        • Search
        • Logging
    • CPLEX
    • GUROBI
    • IPOPT
    • KNITRO
    • MINOS
    • ODH-CPLEX
    • PATH
    • SNOPT
    • XA
    • CompLis
  • Miscellaneous
User's Guide
AIMMS Logo
  • User's Guide »
  • AIMMS and Solvers »
  • CP Optimizer »
  • CP Optimizer Options »
  • Search »
  • Failure directed search
  • Edit on Github

Failure directed search

Type : Selection

Range : The settings listed below

Default : On

This option controls usage of failure-directed search. Possible values are:

  • Off

  • On

Failure-directed search assumes that there is no (better) solution or that such a solution is very hard to find. Therefore it focuses on systematic exploration of the search space, first eliminating assignments that are most likely to fail. Failure-directed search is used only for scheduling problems (i.e. models containing activities) and only when the option Search Type is set to ‘Restart’ or ‘Automatic’.

When this option is switched on then CP Optimizer starts failure-directed search when other search strategies are (no longer) successful and when the memory necessary for the search does not exceed the value set by the option Failure Directed Search Memory Limit .

Learn more about

  • Failure directed search emphasis

  • Failure directed search memory limit

  • Search type

Last updated: Aug 06, 2025

Help & Feedback

Docs

Edit this page to fix an error or add an improvement in a pull request
Create an issue to suggest an improvement to this page

Product

Create a topic if there's something you don't like about this feature
Propose functionality by submitting a feature request

Support

Not what you where looking for? Search the docs

Remember we also have Community support

Still having trouble ? Reach out to us


Next Previous

AIMMS
AIMMS COMMUNITY
AIMMS DOCS
DISCLAIMER
PRIVACY STATEMENT
© 1989 - 2025 AIMMS B.V.