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add missing locks around mpz operations that access object allocator. Use internal skolem constant for theory assumption to hide it from models

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2017-05-14 14:04:00 -07:00
parent 0ddbd32a42
commit a0efdc21c3
3 changed files with 11 additions and 3 deletions
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4
src/smt/theory_str.cpp
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@ -7364,7 +7364,7 @@ namespace smt {
const char* strOverlap = "!!TheoryStrOverlapAssumption!!";
seq_util m_sequtil(get_manager());
sort * s = get_manager().mk_bool_sort();
m_theoryStrOverlapAssumption_term = expr_ref(get_manager().mk_fresh_const(strOverlap, s), get_manager());
m_theoryStrOverlapAssumption_term = expr_ref(mk_fresh_const(strOverlap, s), get_manager());
assumptions.push_back(get_manager().mk_not(m_theoryStrOverlapAssumption_term));
}
@ -9239,7 +9239,7 @@ namespace smt {
);
// ----------------------------------------------------------------------------------------
ptr_vector<expr> orList;
ptr_vector<expr> andList;

4
src/util/mpz.h
View file

@ -497,7 +497,9 @@ public:
STRACE("mpz", tout << "[mpz] 0 - " << to_string(a) << " == ";);
if (is_small(a) && a.m_val == INT_MIN) {
// neg(INT_MIN) is not a small int
MPZ_BEGIN_CRITICAL();
set_big_i64(a, - static_cast<long long>(INT_MIN));
MPZ_END_CRITICAL();
return;
}
#ifndef _MP_GMP
@ -518,7 +520,9 @@ public:
if (a.m_val < 0) {
if (a.m_val == INT_MIN) {
// abs(INT_MIN) is not a small int
MPZ_BEGIN_CRITICAL();
set_big_i64(a, - static_cast<long long>(INT_MIN));
MPZ_END_CRITICAL();
}
else
a.m_val = -a.m_val;

6
src/util/small_object_allocator.cpp
View file

@ -68,6 +68,8 @@ void small_object_allocator::reset() {
#define MASK ((1 << PTR_ALIGNMENT) - 1)
#include <windows.h>
void small_object_allocator::deallocate(size_t size, void * p) {
if (size == 0) return;
@ -92,6 +94,7 @@ void small_object_allocator::deallocate(size_t size, void * p) {
m_free_list[slot_id] = p;
}
void * small_object_allocator::allocate(size_t size) {
if (size == 0) return 0;
@ -100,8 +103,9 @@ void * small_object_allocator::allocate(size_t size) {
return memory::allocate(size);
#endif
m_alloc_size += size;
if (size >= SMALL_OBJ_SIZE - (1 << PTR_ALIGNMENT))
if (size >= SMALL_OBJ_SIZE - (1 << PTR_ALIGNMENT)) {
return memory::allocate(size);
}
#ifdef Z3DEBUG
size_t osize = size;
#endif