Benchmark

non-incremental/QF_NRA/20220314-Uncu/Rational_Function_Proof_Calls_With_Disjunctive_Denominator_Simplifications/DDC_ProveIneq_ISSAC10_ex3f.smt2

Translated to SMT-Lib by Maple SMTLIB package.

Application: CAD calls of SUMCracker-ProveInequality to prove Example 3 in
M. Kauers and V. Pillwein, When can we detect that a P-finite sequence is positive?
ISSAC '10: Proceedings of the 2010 International Symposium on Symbolic and Algebraic ComputationJuly 2010 Pages 195–201
(https://doi.org/10.1145/1837934.1837974)

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
Size3461
Compressed Size1100
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 On2022-01-06 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 3432
Compressed Size1104
Max. Term Depth8
Asserts 1
Declared Functions0
Declared Constants2
Declared Sorts 0
Defined Functions0
Defined Recursive Functions 0
Defined Sorts0
Constants0
Declared Datatypes0

Symbols

or6 and13 +58 -65
*136 <14 <=18

Evaluations

Evaluation Rating Solver Variant Result Wallclock CPU Time
SMT-COMP 2024 0.20 (4/5) cvc5 cvc5 unsat ✅ 0.28623 0.18672
SMTInterpol SMTInterpol unknown ❌ 0.47192 0.57581
SMT-RAT SMT-RAT unsat ✅ 0.26377 0.16380
Yices2 Yices2 unsat ✅ 0.22204 0.12198
Z3alpha Z3-alpha unsat ✅ 0.29806 0.19798
SMT-COMP 2025 0.17 (5/6) cvc5 cvc5 unsat ✅ 0.41949 0.30255
SMTInterpol SMTInterpol unknown ❌ 0.50458 0.55125
SMT-RAT SMT-RAT unsat ✅ 0.27713 0.15890
Yices2 Yices2 unsat ✅ 0.29802 0.17108
Z3alpha Z3-alpha unsat ✅ 0.65488 0.64106
Z3 Z3-alpha-base unsat ✅ 0.40233 0.27068
z3siri-base unsat ✅ 0.30815 0.18715