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btordumpsmt.c
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btordumpsmt.c
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/* Boolector: Satisfiability Modulo Theories (SMT) solver.
*
* Copyright (C) 2007-2021 by the authors listed in the AUTHORS file.
*
* This file is part of Boolector.
* See COPYING for more information on using this software.
*/
#include "btorcore.h"
#include "btorexit.h"
#include "btorexp.h"
#include "btorsort.h"
#include "utils/btorhashint.h"
#include "utils/btorhashptr.h"
#ifndef NDEBUG
#include "btorclone.h"
#endif
#include "utils/btorhashptr.h"
#include "utils/btornodeiter.h"
#include "btordumpsmt.h"
#include <ctype.h>
#include <limits.h>
struct BtorSMTDumpContext
{
Btor *btor;
BtorPtrHashTable *dump;
BtorPtrHashTable *dumped;
BtorPtrHashTable *boolean;
BtorPtrHashTable *stores;
BtorPtrHashTable *idtab;
BtorPtrHashTable *roots;
BtorPtrHashTable *const_cache;
FILE *file;
uint32_t maxid;
uint32_t pretty_print;
uint32_t open_lets;
uint32_t indent;
bool newline;
};
typedef struct BtorSMTDumpContext BtorSMTDumpContext;
static BtorSMTDumpContext *
new_smt_dump_context (Btor *btor, FILE *file)
{
BtorSMTDumpContext *sdc;
BTOR_CNEW (btor->mm, sdc);
sdc->btor = btor;
sdc->dump = btor_hashptr_table_new (btor->mm,
(BtorHashPtr) btor_node_hash_by_id,
(BtorCmpPtr) btor_node_compare_by_id);
sdc->dumped = btor_hashptr_table_new (btor->mm,
(BtorHashPtr) btor_node_hash_by_id,
(BtorCmpPtr) btor_node_compare_by_id);
sdc->boolean = btor_hashptr_table_new (btor->mm,
(BtorHashPtr) btor_node_hash_by_id,
(BtorCmpPtr) btor_node_compare_by_id);
sdc->stores = btor_hashptr_table_new (btor->mm,
(BtorHashPtr) btor_node_hash_by_id,
(BtorCmpPtr) btor_node_compare_by_id);
sdc->idtab = btor_hashptr_table_new (btor->mm,
(BtorHashPtr) btor_node_hash_by_id,
(BtorCmpPtr) btor_node_compare_by_id);
sdc->const_cache = btor_hashptr_table_new (
btor->mm, (BtorHashPtr) btor_bv_hash, (BtorCmpPtr) btor_bv_compare);
/* use pointer for hashing and comparison */
sdc->roots = btor_hashptr_table_new (btor->mm, 0, 0);
sdc->file = file;
sdc->maxid = 1;
sdc->pretty_print = btor_opt_get (btor, BTOR_OPT_PRETTY_PRINT);
sdc->newline = sdc->pretty_print == 1;
return sdc;
}
static void
delete_smt_dump_context (BtorSMTDumpContext *sdc)
{
BtorPtrHashTableIterator it;
btor_hashptr_table_delete (sdc->dump);
btor_hashptr_table_delete (sdc->dumped);
btor_hashptr_table_delete (sdc->boolean);
btor_hashptr_table_delete (sdc->stores);
btor_hashptr_table_delete (sdc->idtab);
btor_iter_hashptr_init (&it, sdc->roots);
while (btor_iter_hashptr_has_next (&it))
btor_node_release (sdc->btor, btor_iter_hashptr_next (&it));
btor_hashptr_table_delete (sdc->roots);
btor_iter_hashptr_init (&it, sdc->const_cache);
while (btor_iter_hashptr_has_next (&it))
{
assert (it.bucket->data.as_str);
btor_mem_freestr (sdc->btor->mm, it.bucket->data.as_str);
btor_bv_free (sdc->btor->mm,
(BtorBitVector *) btor_iter_hashptr_next (&it));
}
btor_hashptr_table_delete (sdc->const_cache);
BTOR_DELETE (sdc->btor->mm, sdc);
}
static void
add_root_to_smt_dump_context (BtorSMTDumpContext *sdc, BtorNode *root)
{
if (!btor_hashptr_table_get (sdc->roots, root))
btor_hashptr_table_add (sdc->roots, btor_node_copy (sdc->btor, root));
}
static int32_t
cmp_node_id (const void *p, const void *q)
{
BtorNode *a = *(BtorNode **) p;
BtorNode *b = *(BtorNode **) q;
return a->id - b->id;
}
static uint32_t
smt_id (BtorSMTDumpContext *sdc, BtorNode *exp)
{
assert (sdc);
assert (exp);
assert (btor_node_is_regular (exp));
BtorPtrHashBucket *b;
int32_t id;
if (sdc->pretty_print)
{
b = btor_hashptr_table_get (sdc->idtab, exp);
if (!b)
{
b = btor_hashptr_table_add (sdc->idtab, exp);
b->data.as_int = sdc->maxid++;
}
return b->data.as_int;
}
id = btor_node_get_btor_id (exp);
if (id) return id;
return exp->id;
}
static bool
symbol_needs_quotes (const char *sym)
{
char ch;
size_t i, len;
len = strlen (sym);
/* already quoted */
if (sym[0] == '|' && sym[len - 1] == '|') return false;
for (i = 0; i < len; i++)
{
ch = sym[i];
if ((ch >= 65 && ch <= 90) || (ch >= 97 && ch <= 122)
|| (ch >= 48 && ch <= 57) || ch == '~' || ch == '!' || ch == '@'
|| ch == '$' || ch == '%' || ch == '^' || ch == '&' || ch == '*'
|| ch == '_' || ch == '-' || ch == '+' || ch == '=' || ch == '<'
|| ch == '>' || ch == '.' || ch == '?' || ch == '/')
continue;
return true;
}
return false;
}
static void
dump_smt_id (BtorSMTDumpContext *sdc, BtorNode *exp)
{
assert (sdc);
assert (exp);
const char *type, *sym;
exp = btor_node_real_addr (exp);
switch (exp->kind)
{
case BTOR_VAR_NODE: type = "v"; goto DUMP_SYMBOL;
case BTOR_PARAM_NODE:
type = "p";
DUMP_SYMBOL:
sym = btor_node_get_symbol (sdc->btor, exp);
if (sym && !isdigit ((int32_t) sym[0]))
{
if (symbol_needs_quotes (sym))
fprintf (sdc->file, "|%s|", sym);
else
fputs (sym, sdc->file);
return;
}
break;
case BTOR_UF_NODE: type = "uf"; goto DUMP_SYMBOL;
case BTOR_LAMBDA_NODE: type = "f"; goto DUMP_SYMBOL;
default: type = "$e";
}
fprintf (sdc->file, "%s%u", type, smt_id (sdc, exp));
}
static bool
is_boolean (BtorSMTDumpContext *sdc, BtorNode *exp)
{
exp = btor_node_real_addr (exp);
return btor_hashptr_table_get (sdc->boolean, exp) != 0;
}
void
btor_dumpsmt_dump_const_value (Btor *btor,
const BtorBitVector *bits,
uint32_t base,
FILE *file)
{
assert (btor);
assert (bits);
assert (base == BTOR_OUTPUT_BASE_BIN || base == BTOR_OUTPUT_BASE_DEC
|| base == BTOR_OUTPUT_BASE_HEX);
char *val;
/* SMT-LIB v1.2 only supports decimal output */
if (base == BTOR_OUTPUT_BASE_DEC)
{
val = btor_bv_to_dec_char (btor->mm, bits);
fprintf (file, "(_ bv%s %d)", val, btor_bv_get_width (bits));
}
else if (base == BTOR_OUTPUT_BASE_HEX && btor_bv_get_width (bits) % 4 == 0)
{
val = btor_bv_to_hex_char (btor->mm, bits);
fprintf (file, "#x%s", val);
}
else
{
val = btor_bv_to_char (btor->mm, bits);
fprintf (file, "#b%s", val);
}
btor_mem_freestr (btor->mm, val);
}
static void
dump_const_value_aux_smt (BtorSMTDumpContext *sdc, BtorBitVector *bits)
{
assert (sdc);
assert (bits);
uint32_t base;
FILE *file;
char *val;
BtorPtrHashBucket *b;
base = btor_opt_get (sdc->btor, BTOR_OPT_OUTPUT_NUMBER_FORMAT);
file = sdc->file;
/* converting consts to decimal/hex is costly. we now always dump the value of
* constants. in order to avoid computing the same value again we cache
* the result of the first computation and print the cached value in
* subsequent calls. */
if (base == BTOR_OUTPUT_BASE_DEC)
{
if ((b = btor_hashptr_table_get (sdc->const_cache, bits)))
{
val = b->data.as_str;
assert (val);
}
else
{
val = btor_bv_to_dec_char (sdc->btor->mm, bits);
btor_hashptr_table_add (sdc->const_cache,
btor_bv_copy (sdc->btor->mm, bits))
->data.as_str = val;
}
fprintf (file, "(_ bv%s %d)", val, btor_bv_get_width (bits));
}
else if (base == BTOR_OUTPUT_BASE_HEX && btor_bv_get_width (bits) % 4 == 0)
{
if ((b = btor_hashptr_table_get (sdc->const_cache, bits)))
{
val = b->data.as_str;
assert (val);
}
else
{
val = btor_bv_to_hex_char (sdc->btor->mm, bits);
btor_hashptr_table_add (sdc->const_cache,
btor_bv_copy (sdc->btor->mm, bits))
->data.as_str = val;
}
fprintf (file, "#x%s", val);
}
else
btor_dumpsmt_dump_const_value (sdc->btor, bits, base, file);
}
void
btor_dumpsmt_dump_sort (BtorSort *sort, FILE *file)
{
uint32_t i;
const char *fmt;
switch (sort->kind)
{
case BTOR_BOOL_SORT: fputs ("Bool", file); break;
case BTOR_BV_SORT:
fmt = "(_ BitVec %d)";
fprintf (file, fmt, sort->bitvec.width);
break;
case BTOR_ARRAY_SORT:
fmt = "(Array (_ BitVec %d) (_ BitVec %d))";
assert (sort->array.index->kind == BTOR_BV_SORT);
assert (sort->array.element->kind == BTOR_BV_SORT);
fprintf (file,
fmt,
sort->array.index->bitvec.width,
sort->array.element->bitvec.width);
break;
case BTOR_FUN_SORT:
/* print domain */
fputc ('(', file);
if (sort->fun.domain->kind == BTOR_TUPLE_SORT)
{
for (i = 0; i < sort->fun.domain->tuple.num_elements; i++)
{
btor_dumpsmt_dump_sort (sort->fun.domain->tuple.elements[i], file);
if (i < sort->fun.domain->tuple.num_elements - 1) fputc (' ', file);
}
}
else
btor_dumpsmt_dump_sort (sort->fun.domain, file);
fputc (')', file);
fputc (' ', file);
/* print co-domain */
btor_dumpsmt_dump_sort (sort->fun.codomain, file);
break;
default: assert (0);
}
}
void
btor_dumpsmt_dump_sort_node (BtorNode *exp, FILE *file)
{
assert (exp);
assert (file);
Btor *btor;
BtorSortId s_fid, s_tid, s_cid, s_did;
BtorSort *sort;
exp = btor_node_real_addr (exp);
btor = exp->btor;
if (btor_node_is_array (exp))
{
s_fid = btor_node_get_sort_id (exp);
s_tid = btor_sort_fun_get_domain (btor, s_fid);
assert (btor_sort_is_tuple (btor, s_tid));
s_did = btor_sort_get_by_id (btor, s_tid)->tuple.elements[0]->id;
s_cid = btor_sort_fun_get_codomain (btor, s_fid);
fprintf (file,
"(Array (_ BitVec %d) (_ BitVec %d))",
btor_sort_bv_get_width (btor, s_did),
btor_sort_bv_get_width (btor, s_cid));
}
else
{
sort = btor_sort_get_by_id (exp->btor, btor_node_get_sort_id (exp));
btor_dumpsmt_dump_sort (sort, file);
}
}
#if 0
static void
extract_store (BtorSMTDumpContext * sdc, BtorNode * exp,
BtorNode ** index, BtorNode ** value, BtorNode ** array)
{
BtorNode *ite, *eq, *apply;
if (!btor_node_is_lambda (exp))
return;
if (((BtorLambdaNode *) exp)->num_params != 1)
return;
if (!btor_node_is_bv_cond (exp->e[1]))
return;
ite = exp->e[1];
if (btor_node_is_inverted (ite))
return;
if (!btor_node_is_bv_eq (ite->e[0]))
return;
/* check ite condition */
eq = ite->e[0];
if (btor_node_is_inverted (eq))
return;
if (!eq->parameterized)
return;
/* check if branch */
if (btor_node_real_addr (ite->e[1])->parameterized)
return;
/* check else branch */
if (!btor_node_real_addr (ite->e[2])->parameterized)
return;
if (!btor_node_is_apply (ite->e[2]))
return;
apply = ite->e[2];
if (btor_node_is_inverted (apply))
return;
if (!btor_node_is_uf_array (apply->e[0])
&& !btor_hashptr_table_get (sdc->stores, apply->e[0]))
return;
if (!btor_node_is_param (apply->e[1]->e[0]))
return;
*index = btor_node_real_addr (eq->e[0])->parameterized ? eq->e[1] : eq->e[0];
*value = ite->e[1];
*array = apply->e[0];
}
#endif
#define PUSH_DUMP_NODE( \
exp, expect_bv, expect_bool, add_space, zero_ext, depth) \
{ \
BTOR_PUSH_STACK (dump, exp); \
BTOR_PUSH_STACK (expect_bv_stack, expect_bv); \
BTOR_PUSH_STACK (expect_bool_stack, expect_bool); \
BTOR_PUSH_STACK (add_space_stack, add_space); \
BTOR_PUSH_STACK (zero_extend_stack, zero_ext); \
BTOR_PUSH_STACK (depth_stack, depth); \
}
static const char *g_kind2smt[BTOR_NUM_OPS_NODE] = {
[BTOR_INVALID_NODE] = "invalid",
[BTOR_BV_CONST_NODE] = "bvconst",
[BTOR_VAR_NODE] = "var",
[BTOR_PARAM_NODE] = "param",
[BTOR_BV_SLICE_NODE] = "extract",
[BTOR_BV_AND_NODE] = "bvand",
[BTOR_FUN_EQ_NODE] = "=",
[BTOR_BV_EQ_NODE] = "=",
[BTOR_BV_ADD_NODE] = "bvadd",
[BTOR_BV_MUL_NODE] = "bvmul",
[BTOR_BV_ULT_NODE] = "bvult",
[BTOR_BV_SLL_NODE] = "bvshl",
[BTOR_BV_SRL_NODE] = "bvlshr",
[BTOR_BV_UDIV_NODE] = "bvudiv",
[BTOR_BV_UREM_NODE] = "bvurem",
[BTOR_BV_CONCAT_NODE] = "concat",
[BTOR_APPLY_NODE] = "apply",
[BTOR_LAMBDA_NODE] = "lambda",
[BTOR_COND_NODE] = "ite",
[BTOR_ARGS_NODE] = "args",
[BTOR_UF_NODE] = "uf",
[BTOR_PROXY_NODE] = "proxy"};
static void
collect_and_children (BtorSMTDumpContext *sdc,
BtorNode *exp,
BtorNodePtrStack *children)
{
assert (children);
assert (BTOR_EMPTY_STACK (*children));
assert (btor_node_is_bv_and (exp));
bool skip;
uint32_t i;
int32_t id;
BtorNode *cur, *real_cur;
BtorNodePtrQueue visit;
BtorPtrHashBucket *b;
BtorIntHashTable *cache;
cache = btor_hashint_table_new (sdc->btor->mm);
/* get children of multi-input and */
BTOR_INIT_QUEUE (sdc->btor->mm, visit);
for (i = 0; i < btor_node_real_addr (exp)->arity; i++)
BTOR_ENQUEUE (visit, btor_node_real_addr (exp)->e[i]);
while (!BTOR_EMPTY_QUEUE (visit))
{
cur = BTOR_DEQUEUE (visit);
real_cur = btor_node_real_addr (cur);
id = btor_node_get_id (cur);
skip = btor_hashint_table_contains (cache, id);
if (!skip)
{
btor_hashint_table_add (cache, id);
b = btor_hashptr_table_get (sdc->dump, real_cur);
}
else
b = 0;
if (!btor_node_is_bv_and (real_cur) || (b && b->data.as_int > 1)
|| btor_node_is_inverted (cur) || skip)
{
BTOR_PUSH_STACK (*children, cur);
continue;
}
assert (!btor_hashptr_table_get (sdc->dumped, real_cur));
btor_hashptr_table_add (sdc->dumped, real_cur);
for (i = 0; i < real_cur->arity; i++) BTOR_ENQUEUE (visit, real_cur->e[i]);
}
BTOR_RELEASE_QUEUE (visit);
btor_hashint_table_delete (cache);
}
static void
print_indent (BtorSMTDumpContext *sdc)
{
uint32_t i;
for (i = 0; i < sdc->indent; i++) fputc (' ', sdc->file);
}
static inline void
open_sexp (BtorSMTDumpContext *sdc)
{
if (sdc->pretty_print && sdc->indent > 0 && sdc->newline)
{
fputc ('\n', sdc->file);
print_indent (sdc);
}
fputc ('(', sdc->file);
sdc->indent++;
}
static inline void
close_sexp (BtorSMTDumpContext *sdc)
{
fputc (')', sdc->file);
sdc->indent--;
}
static void recursively_dump_exp_let_smt (BtorSMTDumpContext *sdc,
BtorNode *exp,
bool expect_bv,
uint32_t depth_limit);
static void
expand_lambda (BtorSMTDumpContext *sdc,
BtorNode *exp,
BtorNodePtrStack *indices,
BtorNodePtrStack *values,
BtorNode **base_array)
{
assert (btor_node_is_lambda (exp));
assert (btor_node_is_array (exp));
uint32_t i;
BtorPtrHashTableIterator it;
BtorPtrHashTable *static_rho;
BtorNode *index, *value, *cur;
BtorNodePtrStack visit;
BtorIntHashTable *cache;
BTOR_INIT_STACK (sdc->btor->mm, visit);
cache = btor_hashint_table_new (sdc->btor->mm);
*base_array = 0;
BTOR_PUSH_STACK (visit, exp);
while (!BTOR_EMPTY_STACK (visit))
{
cur = btor_node_real_addr (BTOR_POP_STACK (visit));
if (btor_hashint_table_contains (cache, cur->id)
|| (!cur->parameterized && !btor_node_is_array (cur)))
continue;
btor_hashint_table_add (cache, cur->id);
if (btor_node_is_lambda (cur))
{
assert (btor_node_is_array (cur));
static_rho = btor_node_lambda_get_static_rho (cur);
assert (static_rho);
btor_iter_hashptr_init (&it, static_rho);
while (btor_iter_hashptr_has_next (&it))
{
value = it.bucket->data.as_ptr;
index = btor_iter_hashptr_next (&it);
assert (btor_node_is_args (index));
assert (btor_node_args_get_arity (sdc->btor, index) == 1);
BTOR_PUSH_STACK (*indices, index->e[0]);
BTOR_PUSH_STACK (*values, value);
}
}
else if (btor_node_is_array (cur))
{
assert (!*base_array);
*base_array = cur;
continue;
}
if (!btor_hashptr_table_get (sdc->dumped, cur))
btor_hashptr_table_add (sdc->dumped, cur);
for (i = 0; i < cur->arity; i++) BTOR_PUSH_STACK (visit, cur->e[i]);
}
assert (*base_array);
BTOR_RELEASE_STACK (visit);
btor_hashint_table_delete (cache);
}
static void
recursively_dump_exp_smt (BtorSMTDumpContext *sdc,
BtorNode *exp,
int32_t expect_bv,
uint32_t depth_limit)
{
assert (sdc);
assert (exp);
assert (btor_hashptr_table_get (sdc->dump, btor_node_real_addr (exp)));
uint32_t depth;
bool is_bool, expect_bool;
uint32_t pad, i, zero_extend;
int32_t add_space;
BtorBitVector *bits;
const char *op, *fmt;
BtorNode *tmp, *real_exp;
BtorArgsIterator it;
BtorNodeIterator node_it;
BtorNodePtrStack dump, args, indices, values;
BtorIntStack expect_bv_stack, expect_bool_stack, depth_stack;
BtorIntStack add_space_stack, zero_extend_stack;
BtorPtrHashTable *visited;
BtorMemMgr *mm;
mm = sdc->btor->mm;
visited = btor_hashptr_table_new (mm, 0, 0);
BTOR_INIT_STACK (mm, args);
BTOR_INIT_STACK (mm, dump);
BTOR_INIT_STACK (mm, expect_bv_stack);
BTOR_INIT_STACK (mm, expect_bool_stack);
BTOR_INIT_STACK (mm, add_space_stack);
BTOR_INIT_STACK (mm, zero_extend_stack);
BTOR_INIT_STACK (mm, depth_stack);
BTOR_INIT_STACK (mm, indices);
BTOR_INIT_STACK (mm, values);
PUSH_DUMP_NODE (exp, expect_bv, 0, 0, 0, 0);
while (!BTOR_EMPTY_STACK (dump))
{
assert (!BTOR_EMPTY_STACK (expect_bv_stack));
assert (!BTOR_EMPTY_STACK (expect_bool_stack));
assert (!BTOR_EMPTY_STACK (add_space_stack));
assert (!BTOR_EMPTY_STACK (zero_extend_stack));
assert (!BTOR_EMPTY_STACK (depth_stack));
assert (BTOR_COUNT_STACK (expect_bv_stack)
== BTOR_COUNT_STACK (expect_bool_stack));
assert (BTOR_COUNT_STACK (expect_bool_stack)
== BTOR_COUNT_STACK (add_space_stack));
assert (BTOR_COUNT_STACK (add_space_stack)
== BTOR_COUNT_STACK (zero_extend_stack));
assert (BTOR_COUNT_STACK (zero_extend_stack)
== BTOR_COUNT_STACK (depth_stack));
depth = BTOR_POP_STACK (depth_stack);
exp = BTOR_POP_STACK (dump);
expect_bv = BTOR_POP_STACK (expect_bv_stack);
expect_bool = BTOR_POP_STACK (expect_bool_stack);
add_space = BTOR_POP_STACK (add_space_stack);
zero_extend = BTOR_POP_STACK (zero_extend_stack);
real_exp = btor_node_real_addr (exp);
is_bool = is_boolean (sdc, real_exp);
assert (!expect_bv || !expect_bool);
assert (!expect_bool || !expect_bv);
/* open s-expression */
if (!btor_hashptr_table_get (visited, real_exp))
{
if (add_space) fputc (' ', sdc->file);
/* wrap node with zero_extend */
if (zero_extend)
{
fputc (' ', sdc->file);
open_sexp (sdc);
fprintf (sdc->file, "(_ zero_extend %d) ", zero_extend);
}
/* always print constants */
if (btor_node_is_bv_const (real_exp))
{
if (exp == sdc->btor->true_exp && !expect_bv)
fputs ("true", sdc->file);
else if (exp == btor_node_invert (sdc->btor->true_exp) && !expect_bv)
fputs ("false", sdc->file);
else if (btor_node_is_inverted (exp))
{
bits = btor_bv_not (sdc->btor->mm,
btor_node_bv_const_get_bits (real_exp));
dump_const_value_aux_smt (sdc, bits);
btor_bv_free (sdc->btor->mm, bits);
}
else
{
dump_const_value_aux_smt (sdc,
btor_node_bv_const_get_bits (real_exp));
}
/* close zero extend */
if (zero_extend) close_sexp (sdc);
continue;
}
/* wrap non-bool node and make it bool */
if (expect_bool && !is_bool)
{
open_sexp (sdc);
fputs ("= ", sdc->file);
bits = btor_bv_one (sdc->btor->mm, 1);
dump_const_value_aux_smt (sdc, bits);
btor_bv_free (sdc->btor->mm, bits);
fputc (' ', sdc->file);
}
/* wrap node with bvnot/not */
if (btor_node_is_inverted (exp))
{
open_sexp (sdc);
fputs (expect_bv || !is_bool ? "bvnot " : "not ", sdc->file);
}
/* wrap bool node and make it a bit vector expression */
if (is_bool && expect_bv)
{
open_sexp (sdc);
fputs ("ite ", sdc->file);
}
if (btor_hashptr_table_get (sdc->dumped, real_exp)
|| (btor_node_is_lambda (real_exp) && !btor_node_is_array (real_exp))
|| btor_node_is_uf (real_exp))
{
#ifndef NDEBUG
BtorPtrHashBucket *b;
b = btor_hashptr_table_get (sdc->dump, real_exp);
assert (b);
/* functions and variables are declared separately */
assert (btor_node_is_lambda (real_exp) || btor_node_is_uf (real_exp)
|| btor_node_is_bv_var (real_exp)
|| btor_node_is_param (real_exp) || b->data.as_int > 1);
#endif
dump_smt_id (sdc, exp);
goto CLOSE_WRAPPER;
}
if (depth_limit && depth >= depth_limit)
{
fprintf (sdc->file, "%s_%d", g_kind2smt[real_exp->kind], real_exp->id);
goto CLOSE_WRAPPER;
}
PUSH_DUMP_NODE (exp, expect_bv, expect_bool, 0, zero_extend, depth);
btor_hashptr_table_add (visited, real_exp);
op = "";
switch (real_exp->kind)
{
case BTOR_BV_SLL_NODE:
case BTOR_BV_SRL_NODE:
assert (!is_bool);
op = real_exp->kind == BTOR_BV_SRL_NODE ? "bvlshr" : "bvshl";
pad = btor_node_bv_get_width (sdc->btor, real_exp)
- btor_node_bv_get_width (sdc->btor, real_exp->e[1]);
PUSH_DUMP_NODE (real_exp->e[1], 1, 0, 1, pad, depth + 1);
PUSH_DUMP_NODE (real_exp->e[0], 1, 0, 1, 0, depth + 1);
break;
case BTOR_COND_NODE:
op = "ite";
PUSH_DUMP_NODE (real_exp->e[2], !is_bool, 0, 1, 0, depth + 1);
PUSH_DUMP_NODE (real_exp->e[1], !is_bool, 0, 1, 0, depth + 1);
PUSH_DUMP_NODE (real_exp->e[0], 0, 1, 1, 0, depth + 1);
break;
case BTOR_APPLY_NODE:
if (btor_node_is_update (real_exp->e[0])
|| btor_node_is_uf_array (real_exp->e[0])
|| btor_node_is_const_array (real_exp->e[0]))
op = "select ";
/* we need the arguments in reversed order */
btor_iter_args_init (&it, real_exp->e[1]);
while (btor_iter_args_has_next (&it))
{
tmp = btor_iter_args_next (&it);
BTOR_PUSH_STACK (args, tmp);
}
while (!BTOR_EMPTY_STACK (args))
{
tmp = BTOR_POP_STACK (args);
// TODO (ma): what about bool arguments/indices
PUSH_DUMP_NODE (tmp, 1, 0, 1, 0, depth + 1);
}
PUSH_DUMP_NODE (real_exp->e[0], 1, 0, 0, 0, depth + 1);
break;
case BTOR_LAMBDA_NODE:
assert (btor_node_is_lambda (exp));
assert (btor_node_is_array (exp));
if (btor_node_is_const_array (exp))
{
op = "";
PUSH_DUMP_NODE (real_exp->e[1], 1, 0, 0, 0, depth + 1);
}
else
{
tmp = 0;
expand_lambda (sdc, exp, &indices, &values, &tmp);
assert (tmp);
assert (btor_node_is_uf_array (tmp));
for (i = 0; i < BTOR_COUNT_STACK (indices); i++)
{
PUSH_DUMP_NODE (
BTOR_PEEK_STACK (values, i), 1, 0, 1, 0, depth + 1);
PUSH_DUMP_NODE (
BTOR_PEEK_STACK (indices, i), 1, 0, 1, 0, depth + 1);
if (i < BTOR_COUNT_STACK (indices) - 1)
{
open_sexp (sdc);
fputs ("store ", sdc->file);
PUSH_DUMP_NODE (exp, 1, 0, 1, 0, depth + 1);
}
}
BTOR_RESET_STACK (indices);
BTOR_RESET_STACK (values);
op = "store";
/* push base array */
PUSH_DUMP_NODE (tmp, 1, 0, 1, 0, depth + 1);
}
break;
case BTOR_UPDATE_NODE:
op = "store";
PUSH_DUMP_NODE (real_exp->e[2], 1, 0, 1, 0, depth + 1);
PUSH_DUMP_NODE (real_exp->e[1]->e[0], 1, 0, 1, 0, depth + 1);
PUSH_DUMP_NODE (real_exp->e[0], 1, 0, 1, 0, depth + 1);
break;
default:
expect_bv = 1;
switch (real_exp->kind)
{
case BTOR_FUN_EQ_NODE:
case BTOR_BV_EQ_NODE:
op = "=";
expect_bv = 1;
break;
case BTOR_BV_ULT_NODE:
op = "bvult";
expect_bv = 1;
break;
case BTOR_BV_SLICE_NODE:
assert (!is_bool);
op = "(_ extract ";
break;
case BTOR_BV_AND_NODE:
op = is_bool ? "and" : "bvand";
expect_bv = !is_bool;
break;
case BTOR_BV_ADD_NODE:
assert (!is_bool);
op = "bvadd";
break;
case BTOR_BV_MUL_NODE:
assert (!is_bool);
op = "bvmul";
break;
case BTOR_BV_UDIV_NODE:
assert (!is_bool);
op = "bvudiv";
break;
case BTOR_BV_UREM_NODE:
assert (!is_bool);
op = "bvurem";
break;
case BTOR_BV_CONCAT_NODE:
assert (!is_bool);
op = "concat";
break;
case BTOR_FORALL_NODE:
assert (is_bool);
op = "forall";
break;
case BTOR_EXISTS_NODE:
assert (is_bool);
op = "exists";
break;
default: assert (0); op = "unknown";
}
if (btor_node_is_bv_and (real_exp) && is_bool)
{
assert (BTOR_EMPTY_STACK (args));
collect_and_children (sdc, exp, &args);
assert (BTOR_COUNT_STACK (args) >= 2);
for (i = 0; i < BTOR_COUNT_STACK (args); i++)
{
tmp = BTOR_PEEK_STACK (args, i);
PUSH_DUMP_NODE (tmp, expect_bv, 0, 1, 0, depth + 1);
}
BTOR_RESET_STACK (args);
}
#if 0
else if (btor_node_is_quantifier (real_exp))
{
/* body of quantifiers are handled differently (let
* bindings etc.) */
if (real_exp->e[1] != btor_node_binder_get_body (real_exp)
&& real_exp->kind
!= btor_node_real_addr (real_exp->e[1])->kind)
PUSH_DUMP_NODE (real_exp->e[1], 0, 1, 1, 0,
depth + 1);
}
#endif
else if (!btor_node_is_quantifier (real_exp))
for (i = 1; i <= real_exp->arity; i++)
PUSH_DUMP_NODE (real_exp->e[real_exp->arity - i],
expect_bv,
0,
1,
0,
depth + 1);
}
/* open s-expression */
assert (op);
open_sexp (sdc);
fprintf (sdc->file, "%s", op);
if (btor_node_is_bv_slice (real_exp))
{
fmt = "%d %d)";
fprintf (sdc->file,
fmt,
btor_node_bv_slice_get_upper (real_exp),
btor_node_bv_slice_get_lower (real_exp));
}
else if (btor_node_is_const_array (real_exp))
{
fputs ("(as const ", sdc->file);
btor_dumpsmt_dump_sort_node (real_exp, sdc->file);
fputs (") ", sdc->file);
}
else if (btor_node_is_quantifier (real_exp))
{
fputs (" (", sdc->file);
btor_iter_binder_init (&node_it, real_exp);
tmp = 0;
while (btor_iter_binder_has_next (&node_it))
{
tmp = btor_iter_binder_next (&node_it);
if (tmp->kind != real_exp->kind) break;
if (tmp != real_exp) fputc (' ', sdc->file);
if (sdc->pretty_print)
{
fputc ('\n', sdc->file);
print_indent (sdc);
}
fputc ('(', sdc->file);
dump_smt_id (sdc, tmp->e[0]);
fputc (' ', sdc->file);
btor_dumpsmt_dump_sort_node (tmp->e[0], sdc->file);
fputc (')', sdc->file);
btor_hashptr_table_add (sdc->dumped, tmp->e[0]);
btor_hashptr_table_add (sdc->dumped, tmp);
}
assert (tmp);
assert (btor_node_is_regular (tmp));
assert (btor_node_is_quantifier (tmp));