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z3/param_sweep_deterministic.sh

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#!/usr/bin/env bash
set -euo pipefail
# --- Inputs ---
FILE=$(realpath "$1")
Z3=$(realpath "$2")
N="${3:-99999999}" # optional limit on number of tests
TIMEOUT=100
OUT="../sweep_results.csv"
echo "id,params,result,time_s" > "$OUT"
# --- Tunable parameters ---
BOOL_PARAMS=(
"smt.arith.nl.branching"
"smt.arith.nl.cross_nested"
"smt.arith.nl.expensive_patching"
"smt.arith.nl.gb"
"smt.arith.nl.horner"
"smt.arith.nl.optimize_bounds"
"smt.arith.nl.propagate_linear_monomials"
"smt.arith.nl.tangents"
)
INT_PARAM1_KEY="smt.arith.nl.delay"
INT_PARAM1_LO=5
INT_PARAM1_HI=10
INT_PARAM2_KEY="smt.arith.nl.horner_frequency"
INT_PARAM2_LO=2
INT_PARAM2_HI=6
id=1
# --- Deterministic nested loops over all parameter values ---
for b0 in 0 1; do
for b1 in 0 1; do
for b2 in 0 1; do
for b3 in 0 1; do
for b4 in 0 1; do
for b5 in 0 1; do
for b6 in 0 1; do
for b7 in 0 1; do
for d in $(seq "$INT_PARAM1_LO" "$INT_PARAM1_HI"); do
for hf in $(seq "$INT_PARAM2_LO" "$INT_PARAM2_HI"); do
# stop early if N reached
if (( id > N )); then
echo "✓ Done early at $((id-1)) combinations. Results in $OUT"
exit 0
fi
BOOLS=($b0 $b1 $b2 $b3 $b4 $b5 $b6 $b7)
PARAMS=()
for idx in "${!BOOL_PARAMS[@]}"; do
PARAMS+=("${BOOL_PARAMS[$idx]}=${BOOLS[$idx]}")
done
PARAMS+=("$INT_PARAM1_KEY=$d")
PARAMS+=("$INT_PARAM2_KEY=$hf")
PARAM_STR=$(IFS=, ; echo "${PARAMS[*]}")
printf "[%05d] %s\n" "$id" "$PARAM_STR"
# ----- Run Z3 -----
START=$(date +%s%N)
if timeout "$TIMEOUT" "$Z3" \
-v:1 -st \
"$FILE" \
smt.threads=2 \
tactic.default_tactic=smt \
smt_parallel.param_tuning=false \
smt_parallel.tunable_params="$PARAM_STR" \
>/tmp/z3_out.txt 2>&1
then
RESULT=$(grep -E "sat|unsat|unknown" /tmp/z3_out.txt | tail -1)
[[ -z "$RESULT" ]] && RESULT="unknown"
else
RESULT="timeout"
fi
END=$(date +%s%N)
TIME=$(awk "BEGIN{print ($END-$START)/1e9}")
echo "$id,\"$PARAM_STR\",$RESULT,$TIME" >> "$OUT"
((id++))
done # hf
done # d
done; done; done; done; done; done; done; done