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interp localization hack

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This commit is contained in:
Ken McMillan 2014-05-09 13:08:39 -07:00
parent 77f8aa9f6b
commit 2a887a7608
2 changed files with 33 additions and 2 deletions
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30
src/interp/iz3proof_itp.cpp
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@ -2682,10 +2682,21 @@ class iz3proof_itp_impl : public iz3proof_itp {
return make(Equal,x,y);
}
bool range_is_global(const prover::range &r){
if(pv->range_contained(r,rng))
return false;
if(!pv->ranges_intersect(r,rng))
return false;
return true;
}
ast localize_term(ast e, const prover::range &rng, ast &pf){
// we need to memoize this function per range
locmaps &maps = localization_maps_per_range[rng];
// we need to memoize this function separately for A, B and global
prover::range map_range = rng;
if(range_is_global(map_range))
map_range = pv->range_full();
locmaps &maps = localization_maps_per_range[map_range];
hash_map<ast,ast> &localization_map = maps.localization_map;
hash_map<ast,ast> &localization_pf_map = maps.localization_pf_map;
@ -2775,6 +2786,21 @@ class iz3proof_itp_impl : public iz3proof_itp {
ast bar = make_assumption(frame,foo);
pf = make_transitivity(new_var,e,orig_e,bar,pf);
localization_pf_map[orig_e] = pf;
// HACK: try to bias this term in the future
if(!pv->range_is_full(rng)){
prover::range rf = pv->range_full();
locmaps &fmaps = localization_maps_per_range[rf];
hash_map<ast,ast> &flocalization_map = fmaps.localization_map;
hash_map<ast,ast> &flocalization_pf_map = fmaps.localization_pf_map;
// if(flocalization_map.find(orig_e) == flocalization_map.end())
{
flocalization_map[orig_e] = new_var;
flocalization_pf_map[orig_e] = pf;
}
}
return new_var;
}

5
src/interp/iz3scopes.h
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@ -64,6 +64,11 @@ class scopes {
return rng.hi < rng.lo;
}
/** is this range full? */
bool range_is_full(const range &rng){
return rng.lo == SHRT_MIN && rng.hi == SHRT_MAX;
}
/** return an empty range */
range range_empty(){
range res;