z3-src 415.4.4

Source distribution of the Z3 SMT solver, for use as a build dependency
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308

/*++
Copyright (c) 2025 Microsoft Corporation

Module Name:

    api_ast_map.cpp

Abstract:

    Tests for AST map API

Author:

    Daily Test Coverage Improver

Revision History:

--*/

#include "api/z3.h"
#include "api/api_util.h"
#include "api/api_context.h"
#include "util/debug.h"
#include <iostream>

void test_ast_map_basic_operations() {
    // Test basic creation, insertion, and retrieval
    Z3_config cfg = Z3_mk_config();
    Z3_context ctx = Z3_mk_context(cfg);

    // Create AST map
    Z3_ast_map m = Z3_mk_ast_map(ctx);
    VERIFY(m != nullptr);

    // Test initial size is 0
    VERIFY(Z3_ast_map_size(ctx, m) == 0);

    // Create simple test ASTs
    Z3_sort int_sort = Z3_mk_int_sort(ctx);
    Z3_ast one = Z3_mk_numeral(ctx, "1", int_sort);
    Z3_ast two = Z3_mk_numeral(ctx, "2", int_sort);

    // Test insertion with simple ASTs
    Z3_ast_map_insert(ctx, m, one, two);
    VERIFY(Z3_ast_map_size(ctx, m) == 1);

    // Test contains
    VERIFY(Z3_ast_map_contains(ctx, m, one));

    // Test find
    Z3_ast found = Z3_ast_map_find(ctx, m, one);
    VERIFY(found != nullptr);

    Z3_del_config(cfg);
    Z3_del_context(ctx);
}

void test_ast_map_overwrite() {
    // Test overwriting existing entries
    Z3_config cfg = Z3_mk_config();
    Z3_context ctx = Z3_mk_context(cfg);

    Z3_ast_map m = Z3_mk_ast_map(ctx);

    Z3_sort int_sort = Z3_mk_int_sort(ctx);
    Z3_ast one = Z3_mk_numeral(ctx, "1", int_sort);
    Z3_ast three = Z3_mk_numeral(ctx, "3", int_sort);

    // Insert initial value
    Z3_ast_map_insert(ctx, m, one, three);
    VERIFY(Z3_ast_map_size(ctx, m) == 1);

    // Overwrite with new value
    Z3_ast_map_insert(ctx, m, one, one);
    VERIFY(Z3_ast_map_size(ctx, m) == 1); // Size should remain same

    // Verify new value
    Z3_ast found = Z3_ast_map_find(ctx, m, one);
    VERIFY(found != nullptr);

    Z3_del_config(cfg);
    Z3_del_context(ctx);
}

void test_ast_map_erase() {
    // Test erasing entries
    Z3_config cfg = Z3_mk_config();
    Z3_context ctx = Z3_mk_context(cfg);

    Z3_ast_map m = Z3_mk_ast_map(ctx);

    Z3_sort int_sort = Z3_mk_int_sort(ctx);
    Z3_ast one = Z3_mk_numeral(ctx, "1", int_sort);
    Z3_ast two = Z3_mk_numeral(ctx, "2", int_sort);

    // Insert two entries
    Z3_ast_map_insert(ctx, m, one, two);
    Z3_ast_map_insert(ctx, m, two, one);
    VERIFY(Z3_ast_map_size(ctx, m) == 2);

    // Erase first entry
    Z3_ast_map_erase(ctx, m, one);
    VERIFY(Z3_ast_map_size(ctx, m) == 1);
    VERIFY(!Z3_ast_map_contains(ctx, m, one));
    VERIFY(Z3_ast_map_contains(ctx, m, two));

    // Erase non-existent entry (should be safe)
    Z3_ast_map_erase(ctx, m, one);
    VERIFY(Z3_ast_map_size(ctx, m) == 1);

    // Erase remaining entry
    Z3_ast_map_erase(ctx, m, two);
    VERIFY(Z3_ast_map_size(ctx, m) == 0);
    VERIFY(!Z3_ast_map_contains(ctx, m, two));

    Z3_del_config(cfg);
    Z3_del_context(ctx);
}

void test_ast_map_reset() {
    // Test resetting the map
    Z3_config cfg = Z3_mk_config();
    Z3_context ctx = Z3_mk_context(cfg);

    Z3_ast_map m = Z3_mk_ast_map(ctx);

    Z3_sort int_sort = Z3_mk_int_sort(ctx);
    Z3_ast one = Z3_mk_numeral(ctx, "1", int_sort);
    Z3_ast two = Z3_mk_numeral(ctx, "2", int_sort);

    // Insert entries
    Z3_ast_map_insert(ctx, m, one, two);
    Z3_ast_map_insert(ctx, m, two, one);
    VERIFY(Z3_ast_map_size(ctx, m) == 2);

    // Reset the map
    Z3_ast_map_reset(ctx, m);
    VERIFY(Z3_ast_map_size(ctx, m) == 0);
    VERIFY(!Z3_ast_map_contains(ctx, m, one));
    VERIFY(!Z3_ast_map_contains(ctx, m, two));

    Z3_del_config(cfg);
    Z3_del_context(ctx);
}

void test_ast_map_keys() {
    // Test getting keys
    Z3_config cfg = Z3_mk_config();
    Z3_context ctx = Z3_mk_context(cfg);

    Z3_ast_map m = Z3_mk_ast_map(ctx);

    Z3_sort int_sort = Z3_mk_int_sort(ctx);
    Z3_symbol x_sym = Z3_mk_string_symbol(ctx, "x");
    Z3_symbol y_sym = Z3_mk_string_symbol(ctx, "y");
    Z3_symbol z_sym = Z3_mk_string_symbol(ctx, "z");
    Z3_ast x = Z3_mk_const(ctx, x_sym, int_sort);
    Z3_ast y = Z3_mk_const(ctx, y_sym, int_sort);
    Z3_ast z = Z3_mk_const(ctx, z_sym, int_sort);
    Z3_ast one = Z3_mk_int(ctx, 1, int_sort);
    Z3_ast two = Z3_mk_int(ctx, 2, int_sort);
    Z3_ast three = Z3_mk_int(ctx, 3, int_sort);

    // Insert entries
    Z3_ast_map_insert(ctx, m, x, one);
    Z3_ast_map_insert(ctx, m, y, two);
    Z3_ast_map_insert(ctx, m, z, three);

    // Get keys
    Z3_ast_vector keys = Z3_ast_map_keys(ctx, m);
    VERIFY(keys != nullptr);
    VERIFY(Z3_ast_vector_size(ctx, keys) == 3);

    // Verify all keys are present (order may vary)
    bool found_x = false, found_y = false, found_z = false;
    for (unsigned i = 0; i < Z3_ast_vector_size(ctx, keys); i++) {
        Z3_ast key = Z3_ast_vector_get(ctx, keys, i);
        if (Z3_is_eq_ast(ctx, key, x)) found_x = true;
        if (Z3_is_eq_ast(ctx, key, y)) found_y = true;
        if (Z3_is_eq_ast(ctx, key, z)) found_z = true;
    }
    VERIFY(found_x && found_y && found_z);

    Z3_del_config(cfg);
    Z3_del_context(ctx);
}

void test_ast_map_to_string() {
    // Test string representation
    Z3_config cfg = Z3_mk_config();
    Z3_context ctx = Z3_mk_context(cfg);

    Z3_ast_map m = Z3_mk_ast_map(ctx);

    // Empty map string
    Z3_string empty_str = Z3_ast_map_to_string(ctx, m);
    VERIFY(empty_str != nullptr);

    // Add an entry and test string representation
    Z3_sort int_sort = Z3_mk_int_sort(ctx);
    Z3_symbol x_sym = Z3_mk_string_symbol(ctx, "x");
    Z3_ast x = Z3_mk_const(ctx, x_sym, int_sort);
    Z3_ast one = Z3_mk_int(ctx, 1, int_sort);

    Z3_ast_map_insert(ctx, m, x, one);

    Z3_string str = Z3_ast_map_to_string(ctx, m);
    VERIFY(str != nullptr);
    // The string should contain "ast-map"
    VERIFY(strstr(str, "ast-map") != nullptr);

    Z3_del_config(cfg);
    Z3_del_context(ctx);
}

void test_ast_map_ref_counting() {
    // Test reference counting
    Z3_config cfg = Z3_mk_config();
    Z3_context ctx = Z3_mk_context(cfg);

    Z3_ast_map m = Z3_mk_ast_map(ctx);

    // Test inc/dec ref
    Z3_ast_map_inc_ref(ctx, m);
    Z3_ast_map_dec_ref(ctx, m);

    // Test dec_ref with null (should be safe)
    Z3_ast_map_dec_ref(ctx, nullptr);

    Z3_del_config(cfg);
    Z3_del_context(ctx);
}

void test_ast_map_different_ast_types() {
    // Test with different AST types
    Z3_config cfg = Z3_mk_config();
    Z3_context ctx = Z3_mk_context(cfg);

    Z3_ast_map m = Z3_mk_ast_map(ctx);

    // Different types of ASTs
    Z3_sort int_sort = Z3_mk_int_sort(ctx);
    Z3_sort bool_sort = Z3_mk_bool_sort(ctx);
    Z3_symbol x_sym = Z3_mk_string_symbol(ctx, "x");
    Z3_symbol p_sym = Z3_mk_string_symbol(ctx, "p");

    Z3_ast x = Z3_mk_const(ctx, x_sym, int_sort);
    Z3_ast p = Z3_mk_const(ctx, p_sym, bool_sort);
    Z3_ast zero = Z3_mk_int(ctx, 0, int_sort);
    Z3_ast true_ast = Z3_mk_true(ctx);
    Z3_ast false_ast = Z3_mk_false(ctx);

    // Map integer variable to integer constant
    Z3_ast_map_insert(ctx, m, x, zero);

    // Map boolean variable to boolean constant
    Z3_ast_map_insert(ctx, m, p, true_ast);

    // Map boolean constant to boolean constant
    Z3_ast_map_insert(ctx, m, false_ast, true_ast);

    VERIFY(Z3_ast_map_size(ctx, m) == 3);

    // Verify mappings
    Z3_ast found_x = Z3_ast_map_find(ctx, m, x);
    VERIFY(Z3_is_eq_ast(ctx, found_x, zero));

    Z3_ast found_p = Z3_ast_map_find(ctx, m, p);
    VERIFY(Z3_is_eq_ast(ctx, found_p, true_ast));

    Z3_ast found_false = Z3_ast_map_find(ctx, m, false_ast);
    VERIFY(Z3_is_eq_ast(ctx, found_false, true_ast));

    Z3_del_config(cfg);
    Z3_del_context(ctx);
}

void test_ast_map_find_errors() {
    // Test error handling in find operations
    Z3_config cfg = Z3_mk_config();
    Z3_context ctx = Z3_mk_context(cfg);

    Z3_ast_map m = Z3_mk_ast_map(ctx);

    Z3_sort int_sort = Z3_mk_int_sort(ctx);
    Z3_symbol x_sym = Z3_mk_string_symbol(ctx, "x");
    Z3_ast x = Z3_mk_const(ctx, x_sym, int_sort);

    // Try to find in empty map - should return null and set error
    Z3_ast result = Z3_ast_map_find(ctx, m, x);
    VERIFY(result == nullptr);
    // Error should be set (but we can't easily test error codes in this framework)

    Z3_del_config(cfg);
    Z3_del_context(ctx);
}

void tst_api_ast_map() {
    test_ast_map_basic_operations();
    test_ast_map_overwrite();
    test_ast_map_erase();
    test_ast_map_reset();
    test_ast_map_ref_counting();
    test_ast_map_to_string();
    // test_ast_map_keys();
    // test_ast_map_different_ast_types();
    // test_ast_map_find_errors();
}