diff --git "a/RegexPSPACE.jsonl" "b/RegexPSPACE.jsonl"
new file mode 100644--- /dev/null
+++ "b/RegexPSPACE.jsonl"
@@ -0,0 +1,1685 @@
+{"idx": 0, "query": "a?d*(b+d+d+d)", "tree_length": 13, "depth": 3, "minimized_regex": "a?d*(b+d)", "minimized_tree_length": 9, "minimized_depth": 3, "equivalent_regex": "a?(d*(b+d)+d?b)", "not_equivalent_regex": "(a+b)b?(d*+d?)", "positive_example": "dd", "negative_example": "ddab"}
+{"idx": 1, "query": "(a*+a*)(a+c+ad)", "tree_length": 13, "depth": 3, "minimized_regex": "a*(c+ad?)", "minimized_tree_length": 9, "minimized_depth": 4, "equivalent_regex": "ad?+a*(c+ad?)", "not_equivalent_regex": "(a+d+c+d)d*d*", "positive_example": "aaaaad", "negative_example": "aaacd"}
+{"idx": 2, "query": "b*bc+c?d*", "tree_length": 12, "depth": 3, "minimized_regex": "b*c+c?d*", "minimized_tree_length": 10, "minimized_depth": 3, "equivalent_regex": "cd+b*c+c?d*", "not_equivalent_regex": "(b+b+c)b*d?", "positive_example": "dddddddd", "negative_example": "ddddddcd"}
+{"idx": 3, "query": "(a+c+d?)b*?", "tree_length": 10, "depth": 3, "minimized_regex": "(a+c+d)?b*", "minimized_tree_length": 9, "minimized_depth": 4, "equivalent_regex": "(d+(a+c+d?b)b*)?", "not_equivalent_regex": "(a+d)c?b?*", "positive_example": "", "negative_example": "abbbbbdb"}
+{"idx": 4, "query": "dc*(a*+cc)", "tree_length": 11, "depth": 3, "minimized_regex": "dc*a*", "minimized_tree_length": 7, "minimized_depth": 3, "equivalent_regex": "d(c*(c+aa*)+a*)", "not_equivalent_regex": "(a?+d*)c?*", "positive_example": "dcc", "negative_example": "dcadaaaa"}
+{"idx": 5, "query": "(c+c?)(b+d)d*", "tree_length": 11, "depth": 3, "minimized_regex": "c?(b+d)d*", "minimized_tree_length": 9, "minimized_depth": 3, "equivalent_regex": "c?(b+d)d*", "not_equivalent_regex": "b+c+cc+c*d*", "positive_example": "cd", "negative_example": "dbdd"}
+{"idx": 6, "query": "(a?+a+a)(b+d+c*)", "tree_length": 13, "depth": 3, "minimized_regex": "a?(b+d+c*)", "minimized_tree_length": 9, "minimized_depth": 3, "equivalent_regex": "(a+a?(b+d+cc*))?", "not_equivalent_regex": "(a?+b+d)(c+c)*", "positive_example": "acccc", "negative_example": "ccccb"}
+{"idx": 7, "query": "(a+d)c*b?*", "tree_length": 10, "depth": 3, "minimized_regex": "(a+d)c*b*", "minimized_tree_length": 9, "minimized_depth": 3, "equivalent_regex": "(a+d)c*(cb?+b*)", "not_equivalent_regex": "a+c+b+d+c*d*", "positive_example": "dccbbb", "negative_example": "dbccbbb"}
+{"idx": 8, "query": "(a+d)d*(c+c+d*)", "tree_length": 13, "depth": 3, "minimized_regex": "(a+d)d*c?", "minimized_tree_length": 9, "minimized_depth": 3, "equivalent_regex": "(a+d)d*c?+d?d", "not_equivalent_regex": "(d+d*)(ad+c?)", "positive_example": "dddc", "negative_example": "adcdd"}
+{"idx": 9, "query": "c*d?(d?+dd)", "tree_length": 12, "depth": 3, "minimized_regex": "c*d?(dd)?", "minimized_tree_length": 10, "minimized_depth": 3, "equivalent_regex": "(c*(c+d(dd?)?))?", "not_equivalent_regex": "(c+d)*(cd+d+d)", "positive_example": "cccd", "negative_example": "dcccddd"}
+{"idx": 10, "query": "(b+c?)(a+a+d*)", "tree_length": 11, "depth": 3, "minimized_regex": "(b+c)?(a+d*)", "minimized_tree_length": 9, "minimized_depth": 3, "equivalent_regex": "dd?+(b+c)?(a+d*)", "not_equivalent_regex": "(a+c+b+d)b*b?", "positive_example": "cddddddd", "negative_example": "bddbdddd"}
+{"idx": 11, "query": "a*c*+c*(c+d)", "tree_length": 12, "depth": 3, "minimized_regex": "a*c*+c*d", "minimized_tree_length": 10, "minimized_depth": 3, "equivalent_regex": "a*c*+c*d", "not_equivalent_regex": "d(a+a)+(c+d)*", "positive_example": "ccd", "negative_example": "acccccd"}
+{"idx": 12, "query": "b?b?(c?+d*)", "tree_length": 11, "depth": 3, "minimized_regex": "b?b?(c+d*)", "minimized_tree_length": 10, "minimized_depth": 3, "equivalent_regex": "bd+b?b?(c+d*)", "not_equivalent_regex": "(b+d)(b+d)c**", "positive_example": "bdd", "negative_example": "dbc"}
+{"idx": 13, "query": "a*d*(b?+d*)", "tree_length": 11, "depth": 3, "minimized_regex": "a*d*b?", "minimized_tree_length": 8, "minimized_depth": 3, "equivalent_regex": "dd+a*d*b?", "not_equivalent_regex": "(a+b)*(ad+b+d)", "positive_example": "aaab", "negative_example": "dddadb"}
+{"idx": 14, "query": "a*(b+c)+c*+c+c", "tree_length": 13, "depth": 3, "minimized_regex": "a*(b+c)+c*", "minimized_tree_length": 9, "minimized_depth": 3, "equivalent_regex": "(aa)*a?(b+c)+c*", "not_equivalent_regex": "a*+a?+(a+c)b*", "positive_example": "aaaaab", "negative_example": "aaaaaabc"}
+{"idx": 15, "query": "b*(c+c)(c?+cc)", "tree_length": 13, "depth": 3, "minimized_regex": "b*(cc?)?c", "minimized_tree_length": 10, "minimized_depth": 5, "equivalent_regex": "(bb+b*(cc?)?)c", "not_equivalent_regex": "(b*+b+c)c*c?", "positive_example": "bbbbbc", "negative_example": "bcbccc"}
+{"idx": 16, "query": "(a*+a+a)(a+c+a+d)", "tree_length": 14, "depth": 3, "minimized_regex": "a*(a+c+d)", "minimized_tree_length": 8, "minimized_depth": 3, "equivalent_regex": "a*(a+c+d)+a?c", "not_equivalent_regex": "(c+a*)(a+a+d?)", "positive_example": "aaaad", "negative_example": "aadaaaac"}
+{"idx": 17, "query": "b*b?(cd+d?)", "tree_length": 12, "depth": 3, "minimized_regex": "b*(c?d)?", "minimized_tree_length": 8, "minimized_depth": 4, "equivalent_regex": "(bb+b*(b+c?d))?", "not_equivalent_regex": "(b+d+c?)(d*+d*)", "positive_example": "bbbb", "negative_example": "bbdbbd"}
+{"idx": 18, "query": "ad*(a+a)*", "tree_length": 9, "depth": 3, "minimized_regex": "ad*a*", "minimized_tree_length": 7, "minimized_depth": 3, "equivalent_regex": "a(d(da+d*))?a*", "not_equivalent_regex": "(a*+dd)(d*+d?)", "positive_example": "addaaaaa", "negative_example": "adaddaa"}
+{"idx": 19, "query": "(a+c)d*b**", "tree_length": 10, "depth": 3, "minimized_regex": "(a+c)d*b*", "minimized_tree_length": 9, "minimized_depth": 3, "equivalent_regex": "(a+c)((b+dd*)b*)?", "not_equivalent_regex": "a*c*+a?+b+d", "positive_example": "addddbb", "negative_example": "cbcbbb"}
+{"idx": 20, "query": "(aa+c?)(b*+b+b)", "tree_length": 13, "depth": 3, "minimized_regex": "(c+aa)?b*", "minimized_tree_length": 9, "minimized_depth": 4, "equivalent_regex": "c+(aa+c?b)?b*", "not_equivalent_regex": "(a?+b?)(b+b+c*)", "positive_example": "bbbbbb", "negative_example": "bbbbcbb"}
+{"idx": 21, "query": "a*(b+d)+b*+b+b", "tree_length": 13, "depth": 3, "minimized_regex": "a*(b+d)+b*", "minimized_tree_length": 9, "minimized_depth": 3, "equivalent_regex": "ab+a*(b+d)+b*", "not_equivalent_regex": "a?*(a+d+bd)", "positive_example": "aaaab", "negative_example": "abd"}
+{"idx": 22, "query": "(a+d)c*(b*+c*)", "tree_length": 12, "depth": 3, "minimized_regex": "(a+d)c*b*", "minimized_tree_length": 9, "minimized_depth": 3, "equivalent_regex": "(a+d)(cc)*c?b*", "not_equivalent_regex": "(a+d+b*)b*c?", "positive_example": "db", "negative_example": "baccccc"}
+{"idx": 23, "query": "(bc+c+d)*", "tree_length": 8, "depth": 3, "minimized_regex": "(d+b?c)*", "minimized_tree_length": 7, "minimized_depth": 4, "equivalent_regex": "(d+(b+cdb?)?c)*", "not_equivalent_regex": "c+b*+(c+d)*", "positive_example": "ccbcdcdd", "negative_example": "ddcbbd"}
+{"idx": 24, "query": "b??(b+d+c*)", "tree_length": 10, "depth": 3, "minimized_regex": "b?(b+d+c*)", "minimized_tree_length": 9, "minimized_depth": 3, "equivalent_regex": "bc?+b?(b+d+c*)", "not_equivalent_regex": "(b+c+c)(b+c)d*", "positive_example": "", "negative_example": "bccdccc"}
+{"idx": 25, "query": "(c+c*)(a*+c+c)", "tree_length": 11, "depth": 3, "minimized_regex": "c*a*", "minimized_tree_length": 5, "minimized_depth": 2, "equivalent_regex": "c*(c(ca)?a+a*)", "not_equivalent_regex": "(a*+c*)c?*", "positive_example": "cccccaa", "negative_example": "aaacaa"}
+{"idx": 26, "query": "b*+(a+c)b*", "tree_length": 9, "depth": 3, "minimized_regex": "(a+c)?b*", "minimized_tree_length": 7, "minimized_depth": 3, "equivalent_regex": "(b+(a+c+bb)b*)?", "not_equivalent_regex": "a+a+c+a*b*", "positive_example": "abb", "negative_example": "bbcbbbbb"}
+{"idx": 27, "query": "a*c*+b+b+bc", "tree_length": 13, "depth": 3, "minimized_regex": "(b+a*c*)c?", "minimized_tree_length": 10, "minimized_depth": 4, "equivalent_regex": "bc?+a*(ac+c*)", "not_equivalent_regex": "(a+c)c*+(b+c)*", "positive_example": "acccc", "negative_example": "acacccc"}
+{"idx": 28, "query": "(a+c)(b+d)c*c?", "tree_length": 13, "depth": 3, "minimized_regex": "(a+c)(b+d)c*", "minimized_tree_length": 10, "minimized_depth": 3, "equivalent_regex": "(a+c)(b+d)c*", "not_equivalent_regex": "(a+c+b*)(d*+d*)", "positive_example": "abcccccc", "negative_example": "abcccdcc"}
+{"idx": 29, "query": "(a*+b*)(bc+c+c)", "tree_length": 13, "depth": 3, "minimized_regex": "(a*b?+b*)c", "minimized_tree_length": 10, "minimized_depth": 4, "equivalent_regex": "(a*(b+ab?)+b*)c", "not_equivalent_regex": "(a?+b?)(b*+c+c)", "positive_example": "aaaaabc", "negative_example": "abcb"}
+{"idx": 30, "query": "(a*+c*)(a+a+a+c)", "tree_length": 13, "depth": 3, "minimized_regex": "(a*+c*)(a+c)", "minimized_tree_length": 9, "minimized_depth": 3, "equivalent_regex": "aa*+(a*+c*)(a+c)", "not_equivalent_regex": "a?c*(aa+a+c)", "positive_example": "cc", "negative_example": "cccaa"}
+{"idx": 31, "query": "(ab+b+c)(c*+c*)", "tree_length": 13, "depth": 3, "minimized_regex": "(c+a?b)c*", "minimized_tree_length": 9, "minimized_depth": 4, "equivalent_regex": "c+(cc+a?b)c*", "not_equivalent_regex": "(c+a*)a*(b+c)", "positive_example": "abccc", "negative_example": "cacc"}
+{"idx": 32, "query": "a*aa+(a+d)c*", "tree_length": 13, "depth": 3, "minimized_regex": "aa*+(a+d)c*", "minimized_tree_length": 11, "minimized_depth": 3, "equivalent_regex": "aa*+(a+d)c*", "not_equivalent_regex": "(a+c+a+c)(c+d)d*", "positive_example": "dccc", "negative_example": "adcccccc"}
+{"idx": 33, "query": "(d+d*)(c?+cc)", "tree_length": 11, "depth": 3, "minimized_regex": "d*c?c?", "minimized_tree_length": 8, "minimized_depth": 3, "equivalent_regex": "(d*(c+d))?c?+d*", "not_equivalent_regex": "(c+c*)(cc+d*)", "positive_example": "ddddcc", "negative_example": "dcdddc"}
+{"idx": 34, "query": "(a+a)*+b*c?", "tree_length": 10, "depth": 3, "minimized_regex": "b*c?+a*", "minimized_tree_length": 8, "minimized_depth": 3, "equivalent_regex": "b?(b*c)?+a*+b*", "not_equivalent_regex": "(a?+c?)(a+b)*", "positive_example": "aa", "negative_example": "baaaa"}
+{"idx": 35, "query": "(a+b)(c+d)d?*", "tree_length": 11, "depth": 3, "minimized_regex": "(a+b)(c+d)d*", "minimized_tree_length": 10, "minimized_depth": 3, "equivalent_regex": "(a+b)(c+c?d*d)", "not_equivalent_regex": "(a*+b*)b*cd", "positive_example": "bcdddd", "negative_example": "acdddbd"}
+{"idx": 36, "query": "(a+a)c?(a+d)*", "tree_length": 11, "depth": 3, "minimized_regex": "ac?(a+d)*", "minimized_tree_length": 9, "minimized_depth": 3, "equivalent_regex": "a(c?(a+d)*+d*)", "not_equivalent_regex": "a*a?(ac+d*)", "positive_example": "adddaddd", "negative_example": "ccaddad"}
+{"idx": 37, "query": "(a+b+a+c)(c*+c*)", "tree_length": 13, "depth": 3, "minimized_regex": "(a+b+c)c*", "minimized_tree_length": 8, "minimized_depth": 3, "equivalent_regex": "(a+b+c)c*+(b+c)c", "not_equivalent_regex": "(a+b)c*+c*+c*", "positive_example": "cccccc", "negative_example": "aac"}
+{"idx": 38, "query": "(a+a+d)(a+b)*", "tree_length": 10, "depth": 3, "minimized_regex": "(a+d)(a+b)*", "minimized_tree_length": 8, "minimized_depth": 3, "equivalent_regex": "(a+d)(a+b)*+a*a", "not_equivalent_regex": "(a+b)d*+d*+d?", "positive_example": "dbbaaab", "negative_example": "abbbbadb"}
+{"idx": 39, "query": "(a+c)*(a+c+d*)", "tree_length": 11, "depth": 3, "minimized_regex": "(a+c)*d*", "minimized_tree_length": 7, "minimized_depth": 3, "equivalent_regex": "a*((a+c)*d*+c*)", "not_equivalent_regex": "(a+a)c*d?d?", "positive_example": "aacaadd", "negative_example": "caaacddc"}
+{"idx": 40, "query": "b*+bc+(b+d)c*", "tree_length": 13, "depth": 3, "minimized_regex": "(b+d)c*+b*", "minimized_tree_length": 9, "minimized_depth": 3, "equivalent_regex": "(b+d)(cc)*c?+b*", "not_equivalent_regex": "(b+b)*(c+d+d*)", "positive_example": "dcccccc", "negative_example": "dcdcc"}
+{"idx": 41, "query": "b?b?c**", "tree_length": 9, "depth": 3, "minimized_regex": "b?b?c*", "minimized_tree_length": 8, "minimized_depth": 3, "equivalent_regex": "b(bc*)?+b?c*", "not_equivalent_regex": "c*b*?", "positive_example": "ccccc", "negative_example": "cbc"}
+{"idx": 42, "query": "(a+d+bd)d*d?", "tree_length": 13, "depth": 3, "minimized_regex": "(a+b?d)d*", "minimized_tree_length": 9, "minimized_depth": 4, "equivalent_regex": "(a+(b+a?d)?d)d*", "not_equivalent_regex": "aad*(b*+dd)", "positive_example": "d", "negative_example": "dddddad"}
+{"idx": 43, "query": "b*c*+bd+c?", "tree_length": 12, "depth": 3, "minimized_regex": "bd+b*c*", "minimized_tree_length": 9, "minimized_depth": 3, "equivalent_regex": "b(d+b*b)+b*c*", "not_equivalent_regex": "b?+d+d+(c+d)*", "positive_example": "bb", "negative_example": "bbcccccd"}
+{"idx": 44, "query": "(ad+b?)(c*+c?)", "tree_length": 12, "depth": 3, "minimized_regex": "(b+ad)?c*", "minimized_tree_length": 9, "minimized_depth": 4, "equivalent_regex": "((b+ad+b?c)c*)?", "not_equivalent_regex": "(a+b+b*)(c?+d+d)", "positive_example": "bcccccc", "negative_example": "aacccc"}
+{"idx": 45, "query": "(a+c+a+c)b*c?", "tree_length": 13, "depth": 3, "minimized_regex": "(a+c)b*c?", "minimized_tree_length": 9, "minimized_depth": 3, "equivalent_regex": "(a+c)(b*(c+bc?))?", "not_equivalent_regex": "(c+a*)(a?+b+b)", "positive_example": "abbbbbb", "negative_example": "aabbbbc"}
+{"idx": 46, "query": "(b*+d?)(b*+d?)", "tree_length": 11, "depth": 3, "minimized_regex": "(d+b*)(d+b*)", "minimized_tree_length": 9, "minimized_depth": 3, "equivalent_regex": "(d+b*)(d+b*)+(bb)*", "not_equivalent_regex": "(b*+b+b)(b+d)(b+d)", "positive_example": "bbbbd", "negative_example": "ddbbbbb"}
+{"idx": 47, "query": "a**+(b+c)*", "tree_length": 8, "depth": 3, "minimized_regex": "a*+(b+c)*", "minimized_tree_length": 7, "minimized_depth": 3, "equivalent_regex": "b*(c(bc?)*)*+a*", "not_equivalent_regex": "a*c?(b+b)c*", "positive_example": "ccccbbc", "negative_example": "baccbbcc"}
+{"idx": 48, "query": "b*b*(c+d)d*", "tree_length": 12, "depth": 3, "minimized_regex": "b*(c+d)d*", "minimized_tree_length": 9, "minimized_depth": 3, "equivalent_regex": "bd+b*(c+d)d*", "not_equivalent_regex": "b+d*+b?c*", "positive_example": "bbbcd", "negative_example": "bdbdddd"}
+{"idx": 49, "query": "(b*+c*)(c+c)?", "tree_length": 10, "depth": 3, "minimized_regex": "b*c?+c*", "minimized_tree_length": 8, "minimized_depth": 3, "equivalent_regex": "bb+b*(bc)?+c*", "not_equivalent_regex": "(b*+bc)c?*", "positive_example": "", "negative_example": "ccccbc"}
+{"idx": 50, "query": "d(a+a)+(c+d)*", "tree_length": 10, "depth": 3, "minimized_regex": "da+(c+d)*", "minimized_tree_length": 8, "minimized_depth": 3, "equivalent_regex": "d(a+d+cc)+(c+d)*", "not_equivalent_regex": "d+a*+c*d?", "positive_example": "cddcccdc", "negative_example": "cdddaccd"}
+{"idx": 51, "query": "(c+c*)(a?+c+d)", "tree_length": 11, "depth": 3, "minimized_regex": "c*(a+d)?", "minimized_tree_length": 7, "minimized_depth": 3, "equivalent_regex": "(a+c*(d+c(a+d)?))?", "not_equivalent_regex": "a*(a+a)(c*+d*)", "positive_example": "ccd", "negative_example": "cccac"}
+{"idx": 52, "query": "(a+c)*+ad+d?", "tree_length": 11, "depth": 3, "minimized_regex": "a?(d+(a+c)*)", "minimized_tree_length": 9, "minimized_depth": 4, "equivalent_regex": "d+a(a+d)?+(a+c)*", "not_equivalent_regex": "(a+d+c*)c?*", "positive_example": "acccca", "negative_example": "acaadccc"}
+{"idx": 53, "query": "(b*+d*)(bc+c+c)", "tree_length": 13, "depth": 3, "minimized_regex": "(d*b?+b*)c", "minimized_tree_length": 10, "minimized_depth": 4, "equivalent_regex": "((d+b*)b+d*b?)c", "not_equivalent_regex": "(c+d+d)(b*+d*)", "positive_example": "bbc", "negative_example": "bbdbbbc"}
+{"idx": 54, "query": "(a+c+c?)c?d*", "tree_length": 12, "depth": 3, "minimized_regex": "((a+c)c?)?d*", "minimized_tree_length": 10, "minimized_depth": 4, "equivalent_regex": "(a+(a+c)?(c+d))?d*", "not_equivalent_regex": "(a?+c+c)(c+d+d*)", "positive_example": "add", "negative_example": "daddd"}
+{"idx": 55, "query": "(b*+dd)c*?", "tree_length": 10, "depth": 3, "minimized_regex": "(dd+b*)c*", "minimized_tree_length": 9, "minimized_depth": 3, "equivalent_regex": "((c+bb*+dd)c*)?", "not_equivalent_regex": "(b*+c?)(cd)*", "positive_example": "b", "negative_example": "dbbbbbbb"}
+{"idx": 56, "query": "b*b*+c*(c+d)", "tree_length": 12, "depth": 3, "minimized_regex": "c*d?+b*", "minimized_tree_length": 8, "minimized_depth": 3, "equivalent_regex": "c+c*(d+cc)+b*", "not_equivalent_regex": "cd*+b*d*", "positive_example": "b", "negative_example": "bbdbbbb"}
+{"idx": 57, "query": "(a+c)*(c*+d+d)", "tree_length": 11, "depth": 3, "minimized_regex": "(a+c)*d?", "minimized_tree_length": 7, "minimized_depth": 3, "equivalent_regex": "c*(a+d)+(a+c)*d?", "not_equivalent_regex": "c*(a+a+c+d)", "positive_example": "caaaccaa", "negative_example": "dcaacca"}
+{"idx": 58, "query": "(a+b+bb)b*d*", "tree_length": 13, "depth": 3, "minimized_regex": "(a+b)b*d*", "minimized_tree_length": 9, "minimized_depth": 3, "equivalent_regex": "(a+(ab)?b)b*d*", "not_equivalent_regex": "a*?(bb+d?)", "positive_example": "bbbdddd", "negative_example": "abdb"}
+{"idx": 59, "query": "(a?+d+d)b*c?", "tree_length": 12, "depth": 3, "minimized_regex": "(a+d)?b*c?", "minimized_tree_length": 10, "minimized_depth": 4, "equivalent_regex": "(a+d)?b*c?+b*", "not_equivalent_regex": "a**(b+c)(c+d)", "positive_example": "abbbbbbb", "negative_example": "dbbbbca"}
+{"idx": 60, "query": "(b+b+d)a*d*", "tree_length": 11, "depth": 3, "minimized_regex": "(b+d)a*d*", "minimized_tree_length": 9, "minimized_depth": 3, "equivalent_regex": "(b+d)(a*(a+d)d*)?", "not_equivalent_regex": "a+d+b*+(b+d)*", "positive_example": "dadd", "negative_example": "adaaaadd"}
+{"idx": 61, "query": "(a+d)(b+b)+(b+c)*", "tree_length": 12, "depth": 3, "minimized_regex": "(a+d)b+(b+c)*", "minimized_tree_length": 10, "minimized_depth": 3, "equivalent_regex": "(a+d)?b+(b+c)*", "not_equivalent_regex": "a*b?(c+c+cd)", "positive_example": "cbcccbcb", "negative_example": "bdbbbbcc"}
+{"idx": 62, "query": "c*(c+d)+c+d+d*", "tree_length": 13, "depth": 3, "minimized_regex": "c*d?+d*", "minimized_tree_length": 8, "minimized_depth": 3, "equivalent_regex": "(d+cc*)d?+d*", "not_equivalent_regex": "(d+d*)c*(c+d)", "positive_example": "ccccccd", "negative_example": "cdccc"}
+{"idx": 63, "query": "(c+d?)(b+b)*", "tree_length": 9, "depth": 3, "minimized_regex": "(c+d)?b*", "minimized_tree_length": 7, "minimized_depth": 3, "equivalent_regex": "(c+d)?b*", "not_equivalent_regex": "b*c*+bd+c?", "positive_example": "dbbb", "negative_example": "dbcbbbb"}
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+{"idx": 108, "query": "b*bb(c*+c?)", "tree_length": 12, "depth": 3, "minimized_regex": "bbb*c*", "minimized_tree_length": 9, "minimized_depth": 3, "equivalent_regex": "bb(bc?+b*c*)", "not_equivalent_regex": "b*b*(c*+c*)", "positive_example": "bbbbb", "negative_example": "bcbccc"}
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+{"idx": 122, "query": "aa*(d*+d+d)", "tree_length": 11, "depth": 3, "minimized_regex": "aa*d*", "minimized_tree_length": 7, "minimized_depth": 3, "equivalent_regex": "a(ad+a*d*)", "not_equivalent_regex": "a*add*d*", "positive_example": "aaaaaddd", "negative_example": "aadaddd"}
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+{"idx": 124, "query": "cb*+a*+b*", "tree_length": 10, "depth": 3, "minimized_regex": "c?b*+a*", "minimized_tree_length": 8, "minimized_depth": 3, "equivalent_regex": "(b+c)b*+c?b+a*", "not_equivalent_regex": "a*(c+c)(ab)*", "positive_example": "b", "negative_example": "bbbcbbbb"}
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+{"idx": 129, "query": "(a+a)*c*c?", "tree_length": 10, "depth": 3, "minimized_regex": "a*c*", "minimized_tree_length": 5, "minimized_depth": 2, "equivalent_regex": "a(c+a?a)+a*c*", "not_equivalent_regex": "a*(a+c)+c*cc", "positive_example": "aaaccc", "negative_example": "aacccacc"}
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+{"idx": 136, "query": "d(d+d)+c*d*", "tree_length": 11, "depth": 3, "minimized_regex": "c*d*", "minimized_tree_length": 5, "minimized_depth": 2, "equivalent_regex": "(d+cc)d+c*d*", "not_equivalent_regex": "(c*+d+d)d*(d+d)", "positive_example": "cccddd", "negative_example": "cddddcd"}
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+{"idx": 138, "query": "(a+a*)(c+d)(c+d)", "tree_length": 12, "depth": 3, "minimized_regex": "a*(c+d)(c+d)", "minimized_tree_length": 10, "minimized_depth": 3, "equivalent_regex": "(ad+a*(c+d))(c+d)", "not_equivalent_regex": "(a+d)c*d??", "positive_example": "aacc", "negative_example": "aacad"}
+{"idx": 139, "query": "b?(b+c)c*(c+c)", "tree_length": 13, "depth": 3, "minimized_regex": "b?(b+c)c*c", "minimized_tree_length": 11, "minimized_depth": 4, "equivalent_regex": "(c+b?b)cc*", "not_equivalent_regex": "c*(b+c+bc)", "positive_example": "bccccccc", "negative_example": "bbcccbcc"}
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+{"idx": 142, "query": "(a+c)d*+ad+d*", "tree_length": 13, "depth": 3, "minimized_regex": "(a+c)?d*", "minimized_tree_length": 7, "minimized_depth": 3, "equivalent_regex": "c+(a+(c+d)d)?d*", "not_equivalent_regex": "a*c*+c*(c+d)", "positive_example": "dddddd", "negative_example": "ddddddad"}
+{"idx": 143, "query": "a?c*b?(c+c)", "tree_length": 12, "depth": 3, "minimized_regex": "a?c*b?c", "minimized_tree_length": 10, "minimized_depth": 4, "equivalent_regex": "(ac+a?c*b?)c", "not_equivalent_regex": "c+b*+(a+b)*", "positive_example": "ac", "negative_example": "accbac"}
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+{"idx": 149, "query": "a(c+c)+b*d*", "tree_length": 11, "depth": 3, "minimized_regex": "ac+b*d*", "minimized_tree_length": 9, "minimized_depth": 3, "equivalent_regex": "ac+bb+b*d*", "not_equivalent_regex": "a*(c+d)(b+b)?", "positive_example": "dddddddd", "negative_example": "babbbbdd"}
+{"idx": 150, "query": "c*d*+c+d+d?", "tree_length": 12, "depth": 3, "minimized_regex": "c*d*", "minimized_tree_length": 5, "minimized_depth": 2, "equivalent_regex": "c*d*+(cccc)*", "not_equivalent_regex": "c*(c+d)(c+c+d*)", "positive_example": "cccdddd", "negative_example": "cdddddcd"}
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+{"idx": 152, "query": "(a+b)*(a+d)?", "tree_length": 9, "depth": 3, "minimized_regex": "(a+b)*d?", "minimized_tree_length": 7, "minimized_depth": 3, "equivalent_regex": "a(aa)*+(a+b)*d?", "not_equivalent_regex": "a*d*+b+d+d?", "positive_example": "ababaad", "negative_example": "aaadbaaa"}
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+{"idx": 154, "query": "(b*+d+d)d?*", "tree_length": 10, "depth": 3, "minimized_regex": "b*d*", "minimized_tree_length": 5, "minimized_depth": 2, "equivalent_regex": "d(dd?)?+b*d*", "not_equivalent_regex": "(bb+b+d)(d*+d+d)", "positive_example": "bbbb", "negative_example": "dbbbbbbd"}
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+{"idx": 165, "query": "a*+aa+b*c?", "tree_length": 12, "depth": 3, "minimized_regex": "b*c?+a*", "minimized_tree_length": 8, "minimized_depth": 3, "equivalent_regex": "(bb)*b?c?+a*", "not_equivalent_regex": "(a+b+b)(a+c)b*", "positive_example": "aaaa", "negative_example": "aaaaaaac"}
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+{"idx": 169, "query": "(c+c*)(bd+d*)", "tree_length": 11, "depth": 3, "minimized_regex": "c*(bd+d*)", "minimized_tree_length": 9, "minimized_depth": 3, "equivalent_regex": "c*((b+cd)?d+d*)", "not_equivalent_regex": "b*?(b+c)(b+d)", "positive_example": "cccdd", "negative_example": "cccddbd"}
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+{"idx": 171, "query": "ac*+(b+c)c*", "tree_length": 11, "depth": 3, "minimized_regex": "(a+b+c)c*", "minimized_tree_length": 8, "minimized_depth": 3, "equivalent_regex": "(a+b+(a+b)?c)c*", "not_equivalent_regex": "(a?+ab)(a+c)*", "positive_example": "ccc", "negative_example": "bacccc"}
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+{"idx": 173, "query": "(b+bb)c?d*", "tree_length": 11, "depth": 3, "minimized_regex": "bb?c?d*", "minimized_tree_length": 10, "minimized_depth": 4, "equivalent_regex": "b(bc+b?c?)d*", "not_equivalent_regex": "b*d*+(b+c)bd", "positive_example": "bbdddddd", "negative_example": "bcddb"}
+{"idx": 174, "query": "db*a*a*", "tree_length": 10, "depth": 3, "minimized_regex": "db*a*", "minimized_tree_length": 7, "minimized_depth": 3, "equivalent_regex": "db*((a+b)a?+a*)", "not_equivalent_regex": "ad*b**", "positive_example": "dbaaa", "negative_example": "daadaa"}
+{"idx": 175, "query": "b*(a+c+c*)", "tree_length": 9, "depth": 3, "minimized_regex": "b*(a+c*)", "minimized_tree_length": 7, "minimized_depth": 3, "equivalent_regex": "b?(cc+b*(a+c*))", "not_equivalent_regex": "a*+aa+b*(b+c)", "positive_example": "bbba", "negative_example": "bbcccacc"}
+{"idx": 176, "query": "(a*+c*)(c?+cc)", "tree_length": 12, "depth": 3, "minimized_regex": "a*(cc?)?+c*", "minimized_tree_length": 11, "minimized_depth": 5, "equivalent_regex": "a*(ac?c?)?+c*", "not_equivalent_regex": "a*(a+c+cc)", "positive_example": "ac", "negative_example": "caacc"}
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+{"idx": 180, "query": "ac*(a?+b?)", "tree_length": 10, "depth": 3, "minimized_regex": "ac*(a+b)?", "minimized_tree_length": 9, "minimized_depth": 3, "equivalent_regex": "a(c*(a+b+c))?", "not_equivalent_regex": "(a+b+b*)(b+c+c?)", "positive_example": "acccccc", "negative_example": "acbccccc"}
+{"idx": 181, "query": "a**(a?+b+d)", "tree_length": 10, "depth": 3, "minimized_regex": "a*(b+d)?", "minimized_tree_length": 7, "minimized_depth": 3, "equivalent_regex": "a(a+d)+a*(b+d)?", "not_equivalent_regex": "(a+b)d?b*b*", "positive_example": "aa", "negative_example": "baab"}
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+{"idx": 183, "query": "b*(d+d)(d*+d?)", "tree_length": 12, "depth": 3, "minimized_regex": "b*d*d", "minimized_tree_length": 7, "minimized_depth": 3, "equivalent_regex": "(bbd+b*d*)d", "not_equivalent_regex": "(b*+d+d)(b+b)d*", "positive_example": "bbbd", "negative_example": "dbbbbddd"}
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+{"idx": 186, "query": "a*+aa+b*d*", "tree_length": 12, "depth": 3, "minimized_regex": "b*d*+a*", "minimized_tree_length": 8, "minimized_depth": 3, "equivalent_regex": "b*(dd)*d?+a*", "not_equivalent_regex": "(a+a+b*)(b?+d+d)", "positive_example": "aaa", "negative_example": "ddbdddd"}
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+{"idx": 199, "query": "(a*+c?)(bc)*", "tree_length": 10, "depth": 3, "minimized_regex": "(c+a*)(bc)*", "minimized_tree_length": 9, "minimized_depth": 3, "equivalent_regex": "a*(bc)*+(cb)*c", "not_equivalent_regex": "a?(b+c)c*c*", "positive_example": "cbc", "negative_example": "ccbc"}
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+{"idx": 201, "query": "b*(b+c)(d?+d+d)", "tree_length": 13, "depth": 3, "minimized_regex": "b*(b+c)d?", "minimized_tree_length": 9, "minimized_depth": 3, "equivalent_regex": "b*(b+c)d?+b?b", "not_equivalent_regex": "b*?c*d*", "positive_example": "bbbbbbd", "negative_example": "dcd"}
+{"idx": 202, "query": "(a+c+cc)b*?", "tree_length": 11, "depth": 3, "minimized_regex": "(a+cc?)b*", "minimized_tree_length": 9, "minimized_depth": 4, "equivalent_regex": "cb?+(a+cc?)b*", "not_equivalent_regex": "a*c*+b?+c+c", "positive_example": "abbbb", "negative_example": "aabbbbb"}
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+{"idx": 204, "query": "(a+d)*+c**", "tree_length": 8, "depth": 3, "minimized_regex": "c*+(a+d)*", "minimized_tree_length": 7, "minimized_depth": 3, "equivalent_regex": "a*(a+d(a+d)*)+c*", "not_equivalent_regex": "(a*+a+a)(a+c+a+d)", "positive_example": "dddaddad", "negative_example": "ddadcaad"}
+{"idx": 205, "query": "c*d?(d*+d*)", "tree_length": 11, "depth": 3, "minimized_regex": "c*d*", "minimized_tree_length": 5, "minimized_depth": 2, "equivalent_regex": "(c(cd)?+c*)d*", "not_equivalent_regex": "c*d*(d+d+d+d)", "positive_example": "ccccccd", "negative_example": "cdccccd"}
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+{"idx": 207, "query": "a*a*(a*+b*)", "tree_length": 11, "depth": 3, "minimized_regex": "a*b*", "minimized_tree_length": 5, "minimized_depth": 2, "equivalent_regex": "a*b*+b?(bb?)?", "not_equivalent_regex": "a*?b*(b+b)", "positive_example": "aab", "negative_example": "aabbbba"}
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+{"idx": 214, "query": "(a*+b*)a??", "tree_length": 9, "depth": 3, "minimized_regex": "b*a?+a*", "minimized_tree_length": 8, "minimized_depth": 3, "equivalent_regex": "(aa+b*+(aa)*)a?", "not_equivalent_regex": "(a?+b*)(a+b)b*", "positive_example": "bbbbbba", "negative_example": "abbbbbbb"}
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+{"idx": 218, "query": "ad*(a+d+c*)", "tree_length": 11, "depth": 3, "minimized_regex": "ad*(a+c*)", "minimized_tree_length": 9, "minimized_depth": 3, "equivalent_regex": "a(da+d*(a+c*))", "not_equivalent_regex": "a**(c?+c+d)", "positive_example": "adddccc", "negative_example": "d"}
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+{"idx": 225, "query": "(c+cc)a*c*", "tree_length": 11, "depth": 3, "minimized_regex": "cc?a*c*", "minimized_tree_length": 10, "minimized_depth": 4, "equivalent_regex": "c(ca)?a*c*", "not_equivalent_regex": "a*c?c?c?", "positive_example": "caaaaacc", "negative_example": "aca"}
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+{"idx": 227, "query": "(a+b+c)b**", "tree_length": 9, "depth": 3, "minimized_regex": "(a+b+c)b*", "minimized_tree_length": 8, "minimized_depth": 3, "equivalent_regex": "b+(a+c+bb)b*", "not_equivalent_regex": "(a+a)*+b*c*", "positive_example": "bbbb", "negative_example": "abbbbcb"}
+{"idx": 228, "query": "b**(b+c+d+d)", "tree_length": 11, "depth": 3, "minimized_regex": "b*(b+c+d)", "minimized_tree_length": 8, "minimized_depth": 3, "equivalent_regex": "c+b*(d+bc?)", "not_equivalent_regex": "(b?+d?)c*(c+c)", "positive_example": "bbbbbc", "negative_example": "bbbbbdb"}
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+{"idx": 231, "query": "a*c?c?c?", "tree_length": 11, "depth": 3, "minimized_regex": "a*c?(cc)?", "minimized_tree_length": 10, "minimized_depth": 3, "equivalent_regex": "a*((a+c?c)c?)?", "not_equivalent_regex": "a*acc*c?", "positive_example": "aaaa", "negative_example": "acac"}
+{"idx": 232, "query": "(a+b)*+ad+c+d", "tree_length": 12, "depth": 3, "minimized_regex": "c+a?(d+(a+b)*)", "minimized_tree_length": 11, "minimized_depth": 5, "equivalent_regex": "c+a?(d+(a+b)*)", "not_equivalent_regex": "(b+b*)(a+d+c+c)", "positive_example": "abbbbba", "negative_example": "bbaadb"}
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+{"idx": 234, "query": "ca*(b+d+d?)", "tree_length": 11, "depth": 3, "minimized_regex": "ca*(b+d)?", "minimized_tree_length": 9, "minimized_depth": 3, "equivalent_regex": "c(ab?+a*(b+d)?)", "not_equivalent_regex": "a*d*+b*+c?", "positive_example": "cad", "negative_example": "cbd"}
+{"idx": 235, "query": "a**(b+c)(c+d)", "tree_length": 11, "depth": 3, "minimized_regex": "a*(b+c)(c+d)", "minimized_tree_length": 10, "minimized_depth": 3, "equivalent_regex": "cc+a*(b+c)(c+d)", "not_equivalent_regex": "(a+a+ac)b*d?", "positive_example": "aaaaaacd", "negative_example": "adabc"}
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+{"idx": 241, "query": "a*aa(a?+c*)", "tree_length": 12, "depth": 3, "minimized_regex": "aaa*c*", "minimized_tree_length": 9, "minimized_depth": 3, "equivalent_regex": "aa(a*(a+cc*))?", "not_equivalent_regex": "(a+c*)(a*+a+c)", "positive_example": "aaaaacc", "negative_example": "aaaaacac"}
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+{"idx": 249, "query": "cd*(a+b+d*)", "tree_length": 11, "depth": 3, "minimized_regex": "cd*(a+b)?", "minimized_tree_length": 9, "minimized_depth": 3, "equivalent_regex": "cd?(d*(a+b+d))?", "not_equivalent_regex": "(a+b)c?c*(c+d)", "positive_example": "cddda", "negative_example": "bddddddb"}
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+{"idx": 276, "query": "(b+c+d*)(d*+d+d)", "tree_length": 13, "depth": 3, "minimized_regex": "(b+c)?d*", "minimized_tree_length": 7, "minimized_depth": 3, "equivalent_regex": "(b+c)?(d+(ddd?)*)", "not_equivalent_regex": "b*b?(c*+d+d)", "positive_example": "bdddddd", "negative_example": "dddddc"}
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+{"idx": 279, "query": "bdc*(d+d)*", "tree_length": 11, "depth": 3, "minimized_regex": "bdc*d*", "minimized_tree_length": 9, "minimized_depth": 3, "equivalent_regex": "bd((d+cc*)d*)?", "not_equivalent_regex": "b*d*+bb+cc", "positive_example": "bdcccccc", "negative_example": "bbcddd"}
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+{"idx": 287, "query": "(a?+a+a)(a+b)c*", "tree_length": 13, "depth": 3, "minimized_regex": "a?(a+b)c*", "minimized_tree_length": 9, "minimized_depth": 3, "equivalent_regex": "ac+a?(a+b)c*", "not_equivalent_regex": "a?*(a+b)(a+c)", "positive_example": "aac", "negative_example": "bbccccc"}
+{"idx": 288, "query": "a+c+a+d+b*c*", "tree_length": 13, "depth": 3, "minimized_regex": "a+d+b*c*", "minimized_tree_length": 9, "minimized_depth": 3, "equivalent_regex": "a+d+cc?+b*c*", "not_equivalent_regex": "a*c*+(bd)?", "positive_example": "cccccc", "negative_example": "bbbbbba"}
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+{"idx": 293, "query": "(ab+c*)(d*+d?)", "tree_length": 12, "depth": 3, "minimized_regex": "(ab+c*)d*", "minimized_tree_length": 9, "minimized_depth": 3, "equivalent_regex": "(ab+c*d)d*+c*", "not_equivalent_regex": "(ad+b+c)d*?", "positive_example": "cddd", "negative_example": "abcdd"}
+{"idx": 294, "query": "(d+d*)(ad+c?)", "tree_length": 11, "depth": 3, "minimized_regex": "d*(c+ad)?", "minimized_tree_length": 9, "minimized_depth": 4, "equivalent_regex": "d*c?+(d*a)?d", "not_equivalent_regex": "d+a+c+(a+c)*", "positive_example": "ddddad", "negative_example": "cdc"}
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+{"idx": 296, "query": "b*d*(b+b+bd)", "tree_length": 13, "depth": 3, "minimized_regex": "b*d*bd?", "minimized_tree_length": 10, "minimized_depth": 4, "equivalent_regex": "bd+b*d*bd?", "not_equivalent_regex": "(b*+b+b)(b+b+d*)", "positive_example": "ddbd", "negative_example": "ddbb"}
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+{"idx": 299, "query": "bd*(a?+c?)", "tree_length": 10, "depth": 3, "minimized_regex": "bd*(a+c)?", "minimized_tree_length": 9, "minimized_depth": 3, "equivalent_regex": "b(d*(a+c+d))?", "not_equivalent_regex": "(ab+c+d)(b*+b*)", "positive_example": "bddddda", "negative_example": "adda"}
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+{"idx": 303, "query": "(c+a+b)b?*", "tree_length": 9, "depth": 3, "minimized_regex": "(a+b+c)b*", "minimized_tree_length": 8, "minimized_depth": 3, "equivalent_regex": "cbb+(a+b+c)b*", "not_equivalent_regex": "(ab+c?)b**", "positive_example": "a", "negative_example": "acb"}
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+{"idx": 305, "query": "a?b*(a+a)d*", "tree_length": 12, "depth": 3, "minimized_regex": "a?b*ad*", "minimized_tree_length": 10, "minimized_depth": 4, "equivalent_regex": "(a+(ab)?b*)ad*", "not_equivalent_regex": "a*(b?+d+d)", "positive_example": "abbbbad", "negative_example": "bbabddd"}
+{"idx": 306, "query": "b?d*(c?+d?)", "tree_length": 11, "depth": 3, "minimized_regex": "b?d*c?", "minimized_tree_length": 8, "minimized_depth": 3, "equivalent_regex": "(bdd+b?d*)c?", "not_equivalent_regex": "(b*+b*)(c*+d*)", "positive_example": "ddddddc", "negative_example": "dcd"}
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+{"idx": 455, "query": "cd*(a+c+c*)", "tree_length": 11, "depth": 3, "minimized_regex": "cd*(a+c*)", "minimized_tree_length": 9, "minimized_depth": 3, "equivalent_regex": "c(dd?+d*(a+c*))", "not_equivalent_regex": "a+a+c*+c?d*", "positive_example": "cdcccc", "negative_example": "adc"}
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+{"idx": 457, "query": "db*(a+b)*", "tree_length": 9, "depth": 3, "minimized_regex": "d(a+b)*", "minimized_tree_length": 6, "minimized_depth": 3, "equivalent_regex": "da*(b+(a+b)a)*", "not_equivalent_regex": "a*(b+d)+d*+dd", "positive_example": "daaabbb", "negative_example": "baaaaa"}
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+{"idx": 462, "query": "a*d*(ac+d*)", "tree_length": 12, "depth": 3, "minimized_regex": "a*d*(ac)?", "minimized_tree_length": 10, "minimized_depth": 3, "equivalent_regex": "(ad+a*)d*(ac)?", "not_equivalent_regex": "a*?(c+c+d*)", "positive_example": "aaaaa", "negative_example": "aaaadaca"}
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+{"idx": 467, "query": "b+bd+(b+c)*", "tree_length": 10, "depth": 3, "minimized_regex": "bd+(b+c)*", "minimized_tree_length": 8, "minimized_depth": 3, "equivalent_regex": "b(d+(bb)*)+(b+c)*", "not_equivalent_regex": "(b+b+c+d)(d*+d+d)", "positive_example": "cbcbcbb", "negative_example": "cbdcccbc"}
+{"idx": 468, "query": "(a?+d?)b**", "tree_length": 9, "depth": 3, "minimized_regex": "(a+d)?b*", "minimized_tree_length": 7, "minimized_depth": 3, "equivalent_regex": "db?+(a+d)?b*", "not_equivalent_regex": "(a?+d*)(b*+d*)", "positive_example": "abbb", "negative_example": "adbbbb"}
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+{"idx": 494, "query": "a*c*+accc", "tree_length": 13, "depth": 3, "minimized_regex": "a*c*", "minimized_tree_length": 5, "minimized_depth": 2, "equivalent_regex": "a?(a*c*+a?c?)", "not_equivalent_regex": "(c+c*)(a*+c+c)", "positive_example": "acccc", "negative_example": "ca"}
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+{"idx": 498, "query": "a?(a+d)d*d?", "tree_length": 12, "depth": 3, "minimized_regex": "a?(a+d)d*", "minimized_tree_length": 9, "minimized_depth": 3, "equivalent_regex": "(d+a?a)d*", "not_equivalent_regex": "a**(d*+d*)", "positive_example": "ddddd", "negative_example": "aaddadd"}
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+{"idx": 500, "query": "(a+c+c+c)(c+d)*", "tree_length": 12, "depth": 3, "minimized_regex": "(a+c)(c+d)*", "minimized_tree_length": 8, "minimized_depth": 3, "equivalent_regex": "(a+(cd)?c)(c+d)*", "not_equivalent_regex": "(a+c)*+c?d?", "positive_example": "acccdcdd", "negative_example": "aacddcdc"}
+{"idx": 501, "query": "a?c*(c*+d+d)", "tree_length": 12, "depth": 3, "minimized_regex": "a?c*d?", "minimized_tree_length": 8, "minimized_depth": 3, "equivalent_regex": "a?c*(d+cd?)?", "not_equivalent_regex": "(a+c)d*(a+d+d+d)", "positive_example": "cccccccd", "negative_example": "acccccdd"}
+{"idx": 502, "query": "(a*+b*)(a+c+a+c)", "tree_length": 13, "depth": 3, "minimized_regex": "(a*+b*)(a+c)", "minimized_tree_length": 9, "minimized_depth": 3, "equivalent_regex": "ac?+(a*+b*)(a+c)", "not_equivalent_regex": "a*c*+aa(b+c)", "positive_example": "bbbbba", "negative_example": "abaaaaaa"}
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+{"idx": 823, "query": "b*d*(c*+c?)", "tree_length": 11, "depth": 3, "minimized_regex": "b*d*c*", "minimized_tree_length": 8, "minimized_depth": 3, "equivalent_regex": "b*(d*(dc*)?+c*)", "not_equivalent_regex": "(bc+c*)(d*+d*)", "positive_example": "bdcccccc", "negative_example": "cbbddddd"}
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+{"idx": 828, "query": "b?c*+b?d*", "tree_length": 11, "depth": 3, "minimized_regex": "b?(c*+d*)", "minimized_tree_length": 8, "minimized_depth": 3, "equivalent_regex": "b?(c*+d*)+(dd)*", "not_equivalent_regex": "(b+bb)c?d*", "positive_example": "dd", "negative_example": "cccccd"}
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+{"idx": 831, "query": "a*a*(a+a+c+d)", "tree_length": 13, "depth": 3, "minimized_regex": "a*(a+c+d)", "minimized_tree_length": 8, "minimized_depth": 3, "equivalent_regex": "a*(d+ac?)+a?c", "not_equivalent_regex": "a*d*(ac+d*)", "positive_example": "aaad", "negative_example": "adaaaaaa"}
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+{"idx": 835, "query": "bc?(a+c)*", "tree_length": 9, "depth": 3, "minimized_regex": "b(a+c)*", "minimized_tree_length": 6, "minimized_depth": 3, "equivalent_regex": "b(ca+a*)(ca*)*", "not_equivalent_regex": "(c+c?)(a*+b*)", "positive_example": "bcccac", "negative_example": "bbccaaac"}
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+{"idx": 854, "query": "a*d*+a+c+b+d", "tree_length": 13, "depth": 3, "minimized_regex": "b+c+a*d*", "minimized_tree_length": 9, "minimized_depth": 3, "equivalent_regex": "b+c+(a?d+a*)d*", "not_equivalent_regex": "a*d*+a+b+b+c", "positive_example": "aa", "negative_example": "aaabaaad"}
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+{"idx": 857, "query": "b*(b+c)(b+b+b+d)", "tree_length": 14, "depth": 3, "minimized_regex": "b*(b+c)(b+d)", "minimized_tree_length": 10, "minimized_depth": 3, "equivalent_regex": "bb+b*(b+c)(b+d)", "not_equivalent_regex": "b*(b+c)(d?+d+d)", "positive_example": "bbbbbcd", "negative_example": "bbbbdbcb"}
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+{"idx": 873, "query": "a*b?b*(b+c)", "tree_length": 12, "depth": 3, "minimized_regex": "a*b*(b+c)", "minimized_tree_length": 9, "minimized_depth": 3, "equivalent_regex": "a*b*(c+bc?)", "not_equivalent_regex": "(b+a+a)b*c?", "positive_example": "bbbbb", "negative_example": "cbbbbbbb"}
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+{"idx": 1378, "query": "c+aa+a*d*", "tree_length": 11, "depth": 3, "minimized_regex": "c+a*d*", "minimized_tree_length": 7, "minimized_depth": 3, "equivalent_regex": "c+a*d*+a?d", "not_equivalent_regex": "a+c*+a*(a+d)", "positive_example": "ad", "negative_example": "caaaaadd"}
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+{"idx": 1382, "query": "(a+c+b*)(d*+d*)", "tree_length": 12, "depth": 3, "minimized_regex": "(a+c+b*)d*", "minimized_tree_length": 9, "minimized_depth": 3, "equivalent_regex": "(a+c+b*)d*+a?d", "not_equivalent_regex": "adb*c*c*", "positive_example": "ddd", "negative_example": "bbbcd"}
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+{"idx": 1429, "query": "cb*(a+d+b?)", "tree_length": 11, "depth": 3, "minimized_regex": "cb*(a+d)?", "minimized_tree_length": 9, "minimized_depth": 3, "equivalent_regex": "c(d+b*(a+bd?)?)", "not_equivalent_regex": "(b+b+c)(a+d)c*", "positive_example": "cbd", "negative_example": "cdbbd"}
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+{"idx": 1432, "query": "(a*+a+b)c?*", "tree_length": 10, "depth": 3, "minimized_regex": "(b+a*)c*", "minimized_tree_length": 7, "minimized_depth": 3, "equivalent_regex": "a(ac)?+(b+a*)c*", "not_equivalent_regex": "(a*+b?)b*cc", "positive_example": "aaccc", "negative_example": "aaca"}
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+{"idx": 1434, "query": "(a+b)(a+c)(c*+c+c)", "tree_length": 14, "depth": 3, "minimized_regex": "(a+b)(a+c)c*", "minimized_tree_length": 10, "minimized_depth": 3, "equivalent_regex": "(a+b)(cc+(a+c)c*)", "not_equivalent_regex": "(a+c)*+(b+b)*", "positive_example": "aa", "negative_example": "abccc"}
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+{"idx": 1453, "query": "c*(a+b+a+d)", "tree_length": 10, "depth": 3, "minimized_regex": "c*(a+b+d)", "minimized_tree_length": 8, "minimized_depth": 3, "equivalent_regex": "c*(a+b+d+c(a+b))", "not_equivalent_regex": "acb*d**", "positive_example": "ccccb", "negative_example": "cdccccb"}
+{"idx": 1454, "query": "(b*+b+d)b*(c+d)", "tree_length": 13, "depth": 3, "minimized_regex": "d?b*(c+d)", "minimized_tree_length": 9, "minimized_depth": 3, "equivalent_regex": "((d+d?b)b*)?(c+d)", "not_equivalent_regex": "(b+c+d)(c*+cc)", "positive_example": "bbbbbbd", "negative_example": "dbbbbdbc"}
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+{"idx": 1458, "query": "(a+d)c?d*?", "tree_length": 10, "depth": 3, "minimized_regex": "(a+d)c?d*", "minimized_tree_length": 9, "minimized_depth": 3, "equivalent_regex": "(a+d)(c+c?d)?d*", "not_equivalent_regex": "a*+a?+(c+d)*", "positive_example": "dddddddd", "negative_example": "aaddddd"}
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+{"idx": 1488, "query": "a*c*+a?+cd", "tree_length": 12, "depth": 3, "minimized_regex": "cd+a*c*", "minimized_tree_length": 9, "minimized_depth": 3, "equivalent_regex": "cd+a*(ac)?c*", "not_equivalent_regex": "(d+a+c)(c*+c?)", "positive_example": "accccc", "negative_example": "accccdc"}
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+{"idx": 1490, "query": "(a*+b?)a?d*", "tree_length": 11, "depth": 3, "minimized_regex": "(ba?+a*)d*", "minimized_tree_length": 10, "minimized_depth": 4, "equivalent_regex": "(b+(aa)*)a?d*", "not_equivalent_regex": "(b+a+b)(b+d)*", "positive_example": "bd", "negative_example": "daaadddd"}
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+{"idx": 1496, "query": "(d+cd)(a+d)*", "tree_length": 10, "depth": 3, "minimized_regex": "c?d(a+d)*", "minimized_tree_length": 9, "minimized_depth": 3, "equivalent_regex": "da?+c?d(a+d)*", "not_equivalent_regex": "(a+d*)(c*+d?)", "positive_example": "ddaaadad", "negative_example": "cdcddaaa"}
+{"idx": 1497, "query": "(bc+b+d)c*d?", "tree_length": 13, "depth": 3, "minimized_regex": "(b+d)c*d?", "minimized_tree_length": 9, "minimized_depth": 3, "equivalent_regex": "(d+(b+dc)c*)d?", "not_equivalent_regex": "(c+b+d)b*?", "positive_example": "dccccd", "negative_example": "dbcccd"}
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+{"idx": 1508, "query": "a?*b*(b+b)", "tree_length": 10, "depth": 3, "minimized_regex": "a*b*b", "minimized_tree_length": 7, "minimized_depth": 3, "equivalent_regex": "(aaa?+a*b*)b", "not_equivalent_regex": "aa*(b+b*)", "positive_example": "bbbb", "negative_example": "aaaabab"}
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+{"idx": 1510, "query": "(a*+b+c)c**", "tree_length": 10, "depth": 3, "minimized_regex": "(b+a*)c*", "minimized_tree_length": 7, "minimized_depth": 3, "equivalent_regex": "b+((a+b)c+a*)c*", "not_equivalent_regex": "ab(c+c)+b*c*", "positive_example": "aaaaaac", "negative_example": "ccccccb"}
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+{"idx": 1516, "query": "a*+a?+(a+c)b*", "tree_length": 12, "depth": 3, "minimized_regex": "(a+c)b*+a*", "minimized_tree_length": 9, "minimized_depth": 3, "equivalent_regex": "c+(a+cb)b*+a*", "not_equivalent_regex": "a?c?+b*c*", "positive_example": "a", "negative_example": "aabbb"}
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+{"idx": 1519, "query": "bcc*(d+d)*", "tree_length": 11, "depth": 3, "minimized_regex": "bcc*d*", "minimized_tree_length": 9, "minimized_depth": 3, "equivalent_regex": "bc(c*(c+d))?d*", "not_equivalent_regex": "(c+d?)(b+b)*", "positive_example": "bcccccc", "negative_example": "bcdcddd"}
+{"idx": 1520, "query": "(a*+a?)(b+d)c?", "tree_length": 12, "depth": 3, "minimized_regex": "a*(b+d)c?", "minimized_tree_length": 9, "minimized_depth": 3, "equivalent_regex": "bc+a*(b+d)c?", "not_equivalent_regex": "(a+d+bd)(c*+c*)", "positive_example": "ab", "negative_example": "aaaac"}
+{"idx": 1521, "query": "a*d*+b+d+c+d", "tree_length": 13, "depth": 3, "minimized_regex": "b+c+a*d*", "minimized_tree_length": 9, "minimized_depth": 3, "equivalent_regex": "b+c+a*d*+a?d", "not_equivalent_regex": "(c+b?)a*(d+d)", "positive_example": "aadddd", "negative_example": "abaaddd"}
+{"idx": 1522, "query": "c+b*+(a+b)*", "tree_length": 9, "depth": 3, "minimized_regex": "c+(a+b)*", "minimized_tree_length": 6, "minimized_depth": 3, "equivalent_regex": "c+b*(ab?+bb)*", "not_equivalent_regex": "(c+c*)(a+b)(a+c)", "positive_example": "ababaaab", "negative_example": "acaaaabb"}
+{"idx": 1523, "query": "ad+dd+b*d*", "tree_length": 13, "depth": 3, "minimized_regex": "ad+b*d*", "minimized_tree_length": 9, "minimized_depth": 3, "equivalent_regex": "(a+d)d+b*d*", "not_equivalent_regex": "(a*+a+d)(a+a+b*)", "positive_example": "d", "negative_example": "bbddad"}
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+{"idx": 1525, "query": "(aa+aa)b*d*", "tree_length": 13, "depth": 3, "minimized_regex": "aab*d*", "minimized_tree_length": 9, "minimized_depth": 3, "equivalent_regex": "aa(bb?+b*d*)", "not_equivalent_regex": "a**(bd)*", "positive_example": "aabbdd", "negative_example": "aabadd"}
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+{"idx": 1529, "query": "(b?+d?)c*(c+c)", "tree_length": 12, "depth": 3, "minimized_regex": "(b+d)?c*c", "minimized_tree_length": 9, "minimized_depth": 4, "equivalent_regex": "(b+d)?c(cc)*c?", "not_equivalent_regex": "(d+d*)(b+c)d*", "positive_example": "ccccccc", "negative_example": "cdccccc"}
+{"idx": 1530, "query": "a*+aa+(c+d)*", "tree_length": 11, "depth": 3, "minimized_regex": "a*+(c+d)*", "minimized_tree_length": 7, "minimized_depth": 3, "equivalent_regex": "a*+c*+(c*dc*)*", "not_equivalent_regex": "(a+a)c*(d*+dd)", "positive_example": "dcddcdcc", "negative_example": "daddcdd"}
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+{"idx": 1536, "query": "aa(c+c)+(a+b)*", "tree_length": 12, "depth": 3, "minimized_regex": "aac+(a+b)*", "minimized_tree_length": 10, "minimized_depth": 3, "equivalent_regex": "a(ac?+a*)+(a+b)*", "not_equivalent_regex": "a*+c*+(a+b)c*", "positive_example": "aaabbbbb", "negative_example": "aabcbab"}
+{"idx": 1537, "query": "a?b*(b?+dd)", "tree_length": 12, "depth": 3, "minimized_regex": "a?b*(dd)?", "minimized_tree_length": 10, "minimized_depth": 3, "equivalent_regex": "a?(bb+b*(dd)?)", "not_equivalent_regex": "a**(a?+b+d)", "positive_example": "bbbbbbdd", "negative_example": "bbdbbbdd"}
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+{"idx": 1541, "query": "a*(a+c)+c*cc", "tree_length": 13, "depth": 3, "minimized_regex": "cc*+a*(a+c)", "minimized_tree_length": 11, "minimized_depth": 3, "equivalent_regex": "a(a*(a+c))?+c*c", "not_equivalent_regex": "a*c?+c*+c*", "positive_example": "aaaac", "negative_example": "aaaaaacc"}
+{"idx": 1542, "query": "b*c?(b+c+c+c)", "tree_length": 13, "depth": 3, "minimized_regex": "b*c?(b+c)", "minimized_tree_length": 9, "minimized_depth": 3, "equivalent_regex": "(b*c?+(bb)*)(b+c)", "not_equivalent_regex": "(b*+b+c)(bb+c*)", "positive_example": "bbbbbbcc", "negative_example": "bbcbbbbb"}
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+{"idx": 1544, "query": "(b+b)c?+(c+d)*", "tree_length": 11, "depth": 3, "minimized_regex": "(b+(c+d)*)c?", "minimized_tree_length": 9, "minimized_depth": 4, "equivalent_regex": "(b+dd)c?+(c+d)*", "not_equivalent_regex": "(b+c+bd)(c*+c+c)", "positive_example": "dccddc", "negative_example": "ddcdcccb"}
+{"idx": 1545, "query": "b*d*+(b+d)bd", "tree_length": 13, "depth": 3, "minimized_regex": "(d+b*)(bd+d*)", "minimized_tree_length": 11, "minimized_depth": 3, "equivalent_regex": "d(bd+d*)+b*d*", "not_equivalent_regex": "(bd)*(d*+d+d)", "positive_example": "bbdddddd", "negative_example": "bbddddb"}
+{"idx": 1546, "query": "ad*(a*+dd)", "tree_length": 11, "depth": 3, "minimized_regex": "ad*a*", "minimized_tree_length": 7, "minimized_depth": 3, "equivalent_regex": "ad*(a+(aa)*)a?", "not_equivalent_regex": "a*(d+d)(a+d+d?)", "positive_example": "adddda", "negative_example": "adddada"}
+{"idx": 1547, "query": "(a+c+bc)(b*+bb)", "tree_length": 14, "depth": 3, "minimized_regex": "(a+b?c)b*", "minimized_tree_length": 9, "minimized_depth": 4, "equivalent_regex": "(a+b?c)(bb)*b?", "not_equivalent_regex": "a(b+b)+b*c*", "positive_example": "cbb", "negative_example": "abbbabbb"}
+{"idx": 1548, "query": "(a*+a?)(bc+c*)", "tree_length": 12, "depth": 3, "minimized_regex": "a*(bc+c*)", "minimized_tree_length": 9, "minimized_depth": 3, "equivalent_regex": "a*((b+ac?)c+c*)", "not_equivalent_regex": "(a*+c+c)(a+a)b*", "positive_example": "acc", "negative_example": "abb"}
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+{"idx": 1550, "query": "acb*(b*+c*)", "tree_length": 12, "depth": 3, "minimized_regex": "acb*c*", "minimized_tree_length": 9, "minimized_depth": 3, "equivalent_regex": "acb*c*", "not_equivalent_regex": "(a*+ac)(b?+c?)", "positive_example": "acb", "negative_example": "acba"}
+{"idx": 1551, "query": "b*b*(c*+c*)", "tree_length": 11, "depth": 3, "minimized_regex": "b*c*", "minimized_tree_length": 5, "minimized_depth": 2, "equivalent_regex": "b*(bbcc+c*)", "not_equivalent_regex": "b**(bb+c*)", "positive_example": "ccc", "negative_example": "cbbbbcc"}
+{"idx": 1552, "query": "a*+d*+b*(b+d)", "tree_length": 12, "depth": 3, "minimized_regex": "b*d?+a*+d*", "minimized_tree_length": 11, "minimized_depth": 4, "equivalent_regex": "(d+b*)d?+a*+d*", "not_equivalent_regex": "a+a+d?+(b+d)*", "positive_example": "dddd", "negative_example": "bbabbbbb"}
+{"idx": 1553, "query": "(b*+d?)(d+d)*", "tree_length": 10, "depth": 3, "minimized_regex": "b*d*", "minimized_tree_length": 5, "minimized_depth": 2, "equivalent_regex": "d(dd)?+b*d*", "not_equivalent_regex": "bd*+b*d*", "positive_example": "bddddd", "negative_example": "bbbdbd"}
+{"idx": 1554, "query": "b?+b+b+c*d*", "tree_length": 12, "depth": 3, "minimized_regex": "b+c*d*", "minimized_tree_length": 7, "minimized_depth": 3, "equivalent_regex": "b+c?(cd+c*)d*", "not_equivalent_regex": "(c+c?)(b+d)c*", "positive_example": "cccccc", "negative_example": "bccdd"}
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+{"idx": 1557, "query": "(b*+c?)c*(d+d)", "tree_length": 12, "depth": 3, "minimized_regex": "b*c*d", "minimized_tree_length": 7, "minimized_depth": 3, "equivalent_regex": "((c+bb*)c*+b*)d", "not_equivalent_regex": "(b*+dd)c*?", "positive_example": "bcccccd", "negative_example": "bbdccccd"}
+{"idx": 1558, "query": "(a+b?)a*(b+c)", "tree_length": 11, "depth": 3, "minimized_regex": "b?a*(b+c)", "minimized_tree_length": 9, "minimized_depth": 3, "equivalent_regex": "ac+b?a*(b+c)", "not_equivalent_regex": "(a?+ab)(b*+b+c)", "positive_example": "aaaaac", "negative_example": "acaaaac"}
+{"idx": 1559, "query": "(b*+cd)(c*+c+c)", "tree_length": 13, "depth": 3, "minimized_regex": "(cd+b*)c*", "minimized_tree_length": 9, "minimized_depth": 3, "equivalent_regex": "(cd+b*)c*+b*c", "not_equivalent_regex": "c+d+(b+c)*", "positive_example": "bccc", "negative_example": "bcccbcc"}
+{"idx": 1560, "query": "(b?+c*)(c+c+d?)", "tree_length": 12, "depth": 3, "minimized_regex": "(b+c*)(c+d)?", "minimized_tree_length": 9, "minimized_depth": 3, "equivalent_regex": "c*(c+d)+b?(c+d)?", "not_equivalent_regex": "bcd*(c*+dd)", "positive_example": "cc", "negative_example": "db"}
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+{"idx": 1607, "query": "adb*(bc+c*)", "tree_length": 13, "depth": 3, "minimized_regex": "adb*c*", "minimized_tree_length": 9, "minimized_depth": 3, "equivalent_regex": "ad(b*(b+cc*))?", "not_equivalent_regex": "a?c*(bd+c*)", "positive_example": "adbbcccc", "negative_example": "badb"}
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+{"idx": 1609, "query": "a+c+bc+(c+d)*", "tree_length": 12, "depth": 3, "minimized_regex": "a+bc+(c+d)*", "minimized_tree_length": 10, "minimized_depth": 3, "equivalent_regex": "a+(b+cd)c+(c+d)*", "not_equivalent_regex": "adb*(bc+c*)", "positive_example": "cdccd", "negative_example": "dccbdcd"}
+{"idx": 1610, "query": "a**(bd+c*)", "tree_length": 10, "depth": 3, "minimized_regex": "a*(bd+c*)", "minimized_tree_length": 9, "minimized_depth": 3, "equivalent_regex": "cc?+a*(bd+c*)", "not_equivalent_regex": "(a+c+b+d)d?*", "positive_example": "ccc", "negative_example": "accd"}
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+{"idx": 1615, "query": "(b+c)c*+(b+d)c*", "tree_length": 13, "depth": 3, "minimized_regex": "(b+c+d)c*", "minimized_tree_length": 8, "minimized_depth": 3, "equivalent_regex": "b+d+(b+d)?c*c", "not_equivalent_regex": "(c+d*)(b+d)*", "positive_example": "cc", "negative_example": "bdccc"}
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+{"idx": 1618, "query": "(b+d+c*)c*c?", "tree_length": 12, "depth": 3, "minimized_regex": "(b+d)?c*", "minimized_tree_length": 7, "minimized_depth": 3, "equivalent_regex": "b?cc+(b+d)?c*", "not_equivalent_regex": "b?d*(c?+d?)", "positive_example": "", "negative_example": "bccccdcc"}
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+{"idx": 1621, "query": "c**(d+d)*", "tree_length": 8, "depth": 3, "minimized_regex": "c*d*", "minimized_tree_length": 5, "minimized_depth": 2, "equivalent_regex": "(c*d?+d*)(dd)*", "not_equivalent_regex": "c*d*(c+c+cc)", "positive_example": "ccdddd", "negative_example": "dcccccc"}
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