Benchmark

non-incremental/QF_NRA/20220314-Uncu/Rational_Function_Proof_Calls_With_Disjunctive_Denominator_Simplifications/DDC_ProveIneq_ISSAC05_Bessack_2_m1.smt2

Translated to SMT-Lib by Maple SMTLIB package.

Application: 
CAD calls of SUMCracker-ProveInequality to prove Bessack Inequality with (a,b)=(2,-1) in
S. Gerhold and M. Kauers, A Procedure for Proving Special Function Inequalities Involving a Discrete Parameter.
ISSAC '05: Proceedings of the 2005 international symposium on Symbolic and algebraic computationJuly 2005 Pages 156-162.
(https://dl.acm.org/doi/10.1145/1073884.1073907)

All denominators in the original CAD call got cleared by introducing disjunctions with sign conditions:
a/b == c/d --> a d==b c && b<>0 && d<>0
a/b >= c  --> a >=b c && b >0  or ( a <= b c && b < 0)
Benchmark
Size1473
Compressed Size822
License Creative Commons Attribution 4.0 International (CC-BY-4.0)
Categoryindustrial
First Occurrence2022-08-10
Generated ByAli K. Uncu, Matthew England, and James H. Davenport
Generated On2022-01-08 00:00:00
GeneratorSUMCracker-ProveInequality function by Manuel Kauers ("https://www3.risc.jku.at/research/combinat/software/ergosum/RISC/SumCracker.html")
Dolmen OK1
strict Dolmen OK1
check-sat calls1
Query 1
Status unsat
Inferred Status unsat
Size 1429
Compressed Size807
Max. Term Depth6
Asserts 1
Declared Functions0
Declared Constants4
Declared Sorts 0
Defined Functions0
Defined Recursive Functions 0
Defined Sorts0
Constants0
Declared Datatypes0

Symbols

or1 and3 +9 *8
<8 <=1

Evaluations

Evaluation Rating Solver Variant Result Wallclock CPU Time
SMT-COMP 2024 0.20 (4/5) cvc5 cvc5 unsat ✅ 0.22596 0.12600
SMTInterpol SMTInterpol unknown ❌ 0.43967 0.44837
SMT-RAT SMT-RAT unsat ✅ 0.21863 0.11886
Yices2 Yices2 unsat ✅ 0.21729 0.11754
Z3alpha Z3-alpha unsat ✅ 0.26727 0.16762
SMT-COMP 2025 0.17 (5/6) cvc5 cvc5 unsat ✅ 0.27675 0.15700
SMTInterpol SMTInterpol unknown ❌ 0.42312 0.38442
SMT-RAT SMT-RAT unsat ✅ 0.26422 0.13821
Yices2 Yices2 unsat ✅ 0.29324 0.16565
Z3alpha Z3-alpha unsat ✅ 0.60011 0.48206
Z3 Z3-alpha-base unsat ✅ 0.29929 0.17830
z3siri-base unsat ✅ 0.25866 0.14179