Benchmark

non-incremental/QF_UFBV/2018-Goel-hwbench/QF_UFBV_bv8_bv_h_FourbyFour_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: h_FourbyFour
query-maker: "Z3"
query-time: 271.170000 ms
query-class: abstract
query-category: oneshot
query-type: regular
status: unsat
mode: abstract_bv8
Benchmark
Size236055
Compressed Size30916
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 unsat
Inferred Status unsat
Size 236047
Compressed Size30422
Max. Term Depth417
Asserts 1492
Declared Functions1
Declared Constants1515
Declared Sorts 0
Defined Functions0
Defined Recursive Functions 0
Defined Sorts0
Constants0
Declared Datatypes0

Symbols

true257 ite1431 or28 and728
=4310 distinct257 let1600 concat21
extract5

Evaluations

Evaluation Rating Solver Variant Result Wallclock CPU Time
SMT-COMP 2018 Boolector Boolector_default unsat ✅ 0.27115 0.27109
CVC4 master-2018-06-10-b19c840-competition-default_default unsat ✅ 0.61936 0.61954
MathSAT mathsat-5.5.2-linux-x86_64-Main_default unsat ✅ 0.19014 0.19110
Yices2 Yices 2.6.0_default unsat ✅ 0.08867 0.08862
Z3 z3-4.7.1_default unsat ✅ 0.46803 0.46799