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fixed-size min-heap for tracking top-k literals (#7752)

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* very basic setup

* ensure solve_eqs is fully disabled when smt.solve_eqs=false, #7743

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* respect smt configuration parameter in elim_unconstrained simplifier

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* indentation

* add bash files for test runs

* add option to selectively disable variable solving for only ground expressions

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* remove verbose output

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* fix #7745

axioms for len(substr(...)) escaped due to nested rewriting

* ensure atomic constraints are processed by arithmetic solver

* #7739 optimization

add simplification rule for at(x, offset) = ""

Introducing j just postpones some rewrites that prevent useful simplifications. Z3 already uses common sub-expressions.
The example highlights some opportunities for simplification, noteworthy at(..) = "".
The example is solved in both versions after adding this simplification.

* fix unsound len(substr) axiom

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* FreshConst is_sort (#7748)

* #7750

add pre-processing simplification

* Add parameter validation for selected API functions

* updates to ac-plugin

fix incrementality bugs by allowing destructive updates during saturation at the cost of redoing saturation after a pop.

* enable passive, add check for bloom up-to-date

* add top-k fixed-sized min-heap priority queue for top scoring literals

---------

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
Co-authored-by: Nikolaj Bjorner <nbjorner@microsoft.com>
Co-authored-by: humnrdble <83878671+humnrdble@users.noreply.github.com>
This commit is contained in:
Ilana Shapiro 2025-07-28 19:54:01 -07:00 • committed by GitHub
parent a9b4e35938
commit 435ea6ea99
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24 changed files with 762 additions and 303 deletions
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32
run_local_tests.sh Executable file
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#!/bin/bash
# run from inside ./z3/build
Z3=./z3
OPTIONS="-v:0 -st smt.threads=4"
OUT_FILE="../z3_results.txt"
BASE_PATH="../../z3-poly-testing/inputs/"
# List of relative test files (relative to BASE_PATH)
REL_TEST_FILES=(
"QF_NIA_small/Ton_Chanh_15__Singapore_v1_false-termination.c__p27381_terminationG_0.smt2"
"QF_UFDTLIA_SAT/52759_bec3a2272267494faeecb6bfaf253e3b_10_QF_UFDTLIA.smt2"
)
# Clear output file
> "$OUT_FILE"
# Loop through and run Z3 on each file
for rel_path in "${REL_TEST_FILES[@]}"; do
full_path="$BASE_PATH$rel_path"
test_name="$rel_path"
echo "Running: $test_name"
echo "===== $test_name =====" | tee -a "$OUT_FILE"
# Run Z3 and pipe output to both screen and file
$Z3 "$full_path" $OPTIONS 2>&1 | tee -a "$OUT_FILE"
echo "" | tee -a "$OUT_FILE"
done
echo "Results written to $OUT_FILE"