Benchmark

non-incremental/QF_UF/2018-Goel-hwbench/QF_UF_Huffman_enc_ab_reg_max.smt2

Generated by the tool Averroes 2 (successor of [1]) which implements safety property
verification on hardware systems.

This SMT problem belongs to a set of SMT problems generated by applying Averroes 2
to benchmarks derived from [2-5].

A total of 412 systems (345 from [2], 19 from [3], 26 from [4], 22 from [5]) were
syntactically converted from their original formats (using [6, 7]), and given to 
Averroes 2 to perform property checking with abstraction (wide bit-vectors -> terms, 
wide operators -> UF) using SMT solvers [8, 9].

[1] Lee S., Sakallah K.A. (2014) Unbounded Scalable Verification Based on Approximate
Property-Directed Reachability and Datapath Abstraction. In: Biere A., Bloem R. (eds)
Computer Aided Verification. CAV 2014. Lecture Notes in Computer Science, vol 8559.
Springer, Cham
[2] http://fmv.jku.at/aiger/index.html#beem
[3] http://www.cs.cmu.edu/~modelcheck/vcegar
[4] http://www.cprover.org/hardware/v2c
[5] http://github.com/aman-goel/verilogbench
[6] http://www.clifford.at/yosys
[7] http://github.com/chengyinwu/V3
[8] http://github.com/Z3Prover/z3
[9] http://github.com/SRI-CSL/yices2

id: Huffman_enc
query-maker: "Yices 2"
query-time: 1.313000 ms
query-class: abstract
query-category: oneshot
query-type: regular
status: sat
Benchmark
Size12823
Compressed Size2665
License Creative Commons Attribution 4.0 International (CC-BY-4.0)
Categoryindustrial
First Occurrence2018-07-14
Generated ByAman Goel (amangoel@umich.edu), Karem A. Sakallah (karem@umich.edu)
Generated On2018-04-06 00:00:00
Generator
Dolmen OK1
strict Dolmen OK1
check-sat calls1
Query 1
Status sat
Inferred Status sat
Size 12815
Compressed Size2713
Max. Term Depth3
Asserts 79
Declared Functions9
Declared Constants201
Declared Sorts 9
Defined Functions0
Defined Recursive Functions 0
Defined Sorts0
Constants0
Declared Datatypes0

Symbols

false1 ite30 not2 or1
and1 =108 distinct2

Evaluations

Evaluation Rating Solver Variant Result Wallclock CPU Time
SMT-COMP 2018 0.14 (6/7) CVC4 master-2018-06-10-b19c840-competition-default_default sat ✅ 0.05191 0.05209
MathSAT mathsat-5.5.2-linux-x86_64-Main_default unknown ❌ 0.01513 0.01617
OpenSMT opensmt2_default sat ✅ 0.06384 0.06377
SMTInterpol SMTInterpol-2.5-19-g0d39cdee_default sat ✅ 0.38726 0.75531
veriT veriT_default sat ✅ 0.01429 0.01443
Yices2 Yices 2.6.0_default sat ✅ 0.00879 0.00688
Z3 z3-4.7.1_default sat ✅ 0.03742 0.03736
SMT-COMP 2019 0.12 (7/8) Alt-Ergo Alt-Ergo-SMTComp-2019-wrapped-sq_default unknown ❌ 0.15600 0.38251
CVC4 CVC4-2019-06-03-d350fe1-wrapped-sq_default sat ✅ 0.05803 0.05832
OpenSMT OpenSMT-wrapped-sq_default sat ✅ 0.02032 0.02031
Par4 Par4-wrapped-sq_default sat ✅ 0.01376 0.00589
SMTInterpol smtinterpol-2.5-514-wrapped-sq_default sat ✅ 0.42285 0.79378
veriT veriT-wrapped-sq_default sat ✅ 0.01725 0.01756
Yices2 Yices 2.6.0_default sat ✅ 0.01009 0.00719
Yices 2.6.2-wrapped-sq_default sat ✅ 0.01350 0.00741
Z3 z3-4.8.4-d6df51951f4c-wrapped-sq_default sat ✅ 0.04032 0.04033
SMT-COMP 2021 0.17 (5/6) MathSAT mathsat-5.6.6_default unknown ❌ 0.01754 0.01749
Par4 Par4-wrapped-sq_default sat ✅ 0.01460 0.00608
SMTInterpol smtinterpol-2.5-823-g881e8631_default sat ✅ 0.45089 0.93070
veriT veriT_default sat ✅ 0.01671 0.01695
Yices2 Yices 2.6.2 bug fix_default sat ✅ 0.01021 0.00416
Yices 2.6.2 for SMTCOMP2020_default sat ✅ 0.01218 0.00421
Z3 z3-4.8.11_default sat ✅ 0.01943 0.01939
z3-4.8.8_default sat ✅ 0.03553 0.03549
SMT-COMP 2022 0.20 (4/5) cvc5 cvc5-default-2022-07-02-b15e116-wrapped_sq sat ✅ 0.06992 0.07044
MathSAT MathSAT-5.6.8_default unknown ❌ 0.01599 0.01596
veriT veriT_default sat ✅ 0.01691 0.01716
Yices2 Yices 2.6.2 for SMTCOMP 2021_default sat ✅ 0.01052 0.00419
Z3 z3-4.8.17_default sat ✅ 0.02087 0.02248
z3-4.8.11_default sat ✅ 0.01982 0.01975
SMT-COMP 2024 cvc5 cvc5 sat ✅ 0.24269 0.14308
OpenSMT OpenSMT sat ✅ 0.24351 0.14291
plat-smt plat-smt sat ✅ 0.21035 0.11048
SMTInterpol SMTInterpol sat ✅ 0.58240 1.01998
Yices2 Yices2 sat ✅ 0.21953 0.11932
Z3alpha Z3-alpha sat ✅ 0.29420 0.19402
SMT-COMP 2025 cvc5 cvc5 sat ✅ 0.32124 0.18399
OpenSMT OpenSMT sat ✅ 0.28895 0.16368
SMTInterpol SMTInterpol sat ✅ 0.61750 1.00758
Yices2 Yices2 sat ✅ 0.26035 0.13759