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interpolation fixes

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This commit is contained in:
Ken McMillan 2014-02-24 11:59:02 -08:00
parent 75bb495585
commit 7fc011dbb8
2 changed files with 5 additions and 3 deletions
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2
src/interp/iz3interp.cpp
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@ -64,7 +64,7 @@ struct frame_reducer : public iz3mgr {
: iz3mgr(other) {}
void get_proof_assumptions_rec(z3pf proof, hash_set<ast> &memo, std::vector<bool> &used_frames){
if(memo.count(proof))return;
if(memo.find(proof) != memo.end())return;
memo.insert(proof);
pfrule dk = pr(proof);
if(dk == PR_ASSERTED){

6
src/interp/iz3proof_itp.cpp
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@ -680,7 +680,7 @@ class iz3proof_itp_impl : public iz3proof_itp {
ast dummy1, dummy2;
sum_cond_ineq(in1,coeff2,in2,dummy1,dummy2);
n1 = merge_normal_chains(n1,n2, Aproves, Bproves);
ineq = make_normal(in1,n1);
ineq = is_true(n1) ? in1 : make_normal(in1,n1);
}
bool is_ineq(const ast &ineq){
@ -760,6 +760,8 @@ class iz3proof_itp_impl : public iz3proof_itp {
}
ast round_ineq(const ast &ineq){
if(sym(ineq) == normal)
return make_normal(round_ineq(arg(ineq,0)),arg(ineq,1));
if(!is_ineq(ineq))
throw cannot_simplify();
ast res = simplify_ineq(ineq);
@ -1689,7 +1691,7 @@ class iz3proof_itp_impl : public iz3proof_itp {
ast diff;
if(comp_op == Leq) diff = make(Sub,rhs,mid);
else diff = make(Sub,mid,rhs);
ast foo = z3_simplify(make(Leq,make_int("0"),diff));
ast foo = make(Leq,make_int("0"),z3_simplify(diff));
if(is_true(cond))
cond = foo;
else {