There was a download of IBM ILOG CP 12.4 on the developer's website when we last checked. We cannot confirm if there is a free download of this software available. The program is categorized as Education Tools. This software was originally created by IBM.
The following versions: 12.4 and 1.5 are the most frequently downloaded ones by the program users. According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software.
From the developer:
Use constraint programming to compute optimized schedules and solve other hard optimization problems! IBM ILOG CPLEX CP Optimizer handles the complexity of real-world scheduling problems for personnel, machines or process steps. IBM ILOG CPLEX CP Optimizer constraint programming solver enables model-and-run problem solving with robust constraint propagation and search algorithms.
You may want to check out more software, such as IBM ILOG JViews Enterprise, IBM ILOG CPLEX Optimization Studio Community Edition or IBM WebSphere ILOG JRules, which might be similar to IBM ILOG CP.