add bash scripts to run param experiments on an QF_RDL example to get datapoints

param_sweep_random.sh

@@ -0,0 +1,96 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+# --- Inputs ---
+FILE=$(realpath "$1")
+Z3=$(realpath "$2")
+N="${3:-2}"
+
+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_PARAMS=(
+  "smt.arith.nl.delay:5:10"
+  "smt.arith.nl.horner_frequency:2:6"
+)
+
+# --- Helpers ---
+random_bool() { echo $((RANDOM % 2)); }
+
+random_int() {
+  local lo=$1
+  local hi=$2
+  echo $((lo + RANDOM % (hi - lo + 1)))
+}
+
+# --- Track used parameter combinations ---
+declare -A SEEN
+
+i=1
+while (( i <= N )); do
+
+    # ----- generate a unique parameter string -----
+    while true; do
+        PARAMS=()
+
+        for p in "${BOOL_PARAMS[@]}"; do
+            PARAMS+=("$p=$(random_bool)")
+        done
+
+        for spec in "${INT_PARAMS[@]}"; do
+            IFS=':' read -r key lo hi <<<"$spec"
+            PARAMS+=("$key=$(random_int "$lo" "$hi")")
+        done
+
+        PARAM_STR=$(IFS=, ; echo "${PARAMS[*]}")
+
+        # Check uniqueness
+        if [[ -z "${SEEN[$PARAM_STR]+x}" ]]; then
+            SEEN["$PARAM_STR"]=1
+            break
+        fi
+    done
+
+    printf "[%03d/%03d] %s\n" "$i" "$N" "$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-$START)/1e9}")
+
+    echo "$i,\"$PARAM_STR\",$RESULT,$TIME" >> "$OUT"
+
+    ((i++))
+done
+
+echo "✓ Done. Results written to $OUT"