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  "title": "Fix quantifier weight default to prevent performance regression",
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  "debrief": "GitHub Copilot, working on Z3Prover/z3, takes on a fix task: correcting the default quantifier weight to address a memory and time regression on quantifier-heavy SMT files. The change spans three files and three commits, adding 20 lines and removing three. The pull request closed unmerged after human review, a burn.",
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  "body_excerpt": "This PR fixes a critical performance regression in Z3 4.15.x where quantifier-heavy SMT files experience memory and time blowup compared to Z3 4.8.17.\n\n## Problem\nThe issue was caused by the \"Weight 0\" performance bug documented in `src/params/qi_params.h`. When quantifiers have default weight 0:\n\n1",
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