Benchmark

non-incremental/QF_NRA/20220314-Uncu/Rational_Function_Proof_Calls_With_Disjunctive_Denominator_Simplifications/DDC_ProveIneq_ISSAC10_ex4b.smt2

Translated to SMT-Lib by Maple SMTLIB package.

Application: CAD calls of SUMCracker-ProveInequality to prove Example 4 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
Size1467
Compressed Size833
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 sat
Inferred Status sat
Size 1438
Compressed Size824
Max. Term Depth9
Asserts 1
Declared Functions0
Declared Constants3
Declared Sorts 0
Defined Functions0
Defined Recursive Functions 0
Defined Sorts0
Constants0
Declared Datatypes0

Symbols

or1 and3 +11 -2
*20 <4 <=5

Evaluations

Evaluation Rating Solver Variant Result Wallclock CPU Time
SMT-COMP 2022 cvc5 cvc5-default-2022-07-02-b15e116-wrapped_sq sat ✅ 0.03311 0.03372
MathSAT MathSAT-5.6.8_default sat ✅ 0.02304 0.02298
NRA-LS NRA-LS-FINAL_default sat ✅ 0.02576 0.02582
Par4 Par4-wrapped-sq_default sat ✅ 0.14865 0.00924
SMT-RAT SMT-RAT-MCSAT_default sat ✅ 0.01798 0.01689
veriT veriT+raSAT+Redlog_default sat ✅ 3.07804 3.07803
Yices2 Yices 2.6.2 for SMTCOMP 2021_default sat ✅ 0.02514 0.02005
Z3 z3-4.8.17_default sat ✅ 0.01854 0.02038
Z3++ z3++0715_default sat ✅ 0.28237 0.28242
SMT-COMP 2024 0.20 (4/5) cvc5 cvc5 sat ✅ 0.22412 0.12479
SMTInterpol SMTInterpol unknown ❌ 0.39197 0.39978
SMT-RAT SMT-RAT sat ✅ 0.21488 0.11520
Yices2 Yices2 sat ✅ 0.21734 0.11777
Z3alpha Z3-alpha sat ✅ 0.27010 0.17020