Benchmark

non-incremental/QF_ABV/brummayerbiere2/countbitstableuninit0008.smt2 

Count bits pop(x) algorithm, table lookup method, buggy version
From the book "Hacker's delight" by Henry S. Warren, Jr., page 71
The algorithm precomputes pop(x) for x in range 0 to 255 and stores it
into a lookup table. However, one precomputed value is uninitialized.

We try to cross-check it with the obvious method of counting bits:
for (s = i = 0; i < BW; i++)
  if (x & (1 << i))
    s++;

Contributed by Robert Brummayer (robert.brummayer@gmail.com)
Benchmark
Size9678
Compressed Size1320
License Creative Commons Attribution 4.0 International (CC-BY-4.0)
Categorycrafted
First Occurrence2008-07-07
Generated By—
Generated On—
Generator—
Dolmen OK1
strict Dolmen OK1
check-sat calls1
Query 1
Status sat
Inferred Status sat
Size 9670
Compressed Size1305
Max. Term Depth269
Asserts 1
Declared Functions0
Declared Constants2
Declared Sorts 0
Defined Functions0
Defined Recursive Functions 0
Defined Sorts0
Constants0
Declared Datatypes0

Symbols

ite17 not1 =18 let7
extract1 bvnot9 bvand8 bvadd8
bvshl8 zero_extend8 select1 store255

Evaluations

Evaluation Rating Solver Variant Result Wallclock CPU Time
SMT Evaluation 2013 Boolector Boolector-1.5.118-SMT-EVAL-2013 default sat ✅ 0.04284 —
Boolector-SMT-COMP-2011 default sat ✅ 0.11291 —
Boolector-SMT-COMP-2012 default sat ✅ 0.07304 —
CVC3 CVC3-SMT-COMP-2010 default sat ✅ 1.30335 —
CVC3-SMT-COMP-2011 default sat ✅ 1.21116 —
CVC3-SMT-COMP-2012 default sat ✅ 1.20188 —
CVC4 CVC4-SMT-COMP-2012-Resubmission default sat ✅ 0.96504 —
CVC4-SMT-EVAL-2013 default sat ✅ 1.14860 —
MathSAT MathSAT5-5.2.6-SMT-EVAL-2013 default sat ✅ 0.18921 —
MathSAT5-SMT-COMP-2011 default sat ✅ 1.16465 —
MathSAT5-SMT-COMP-2012 default sat ✅ 2.23989 —
SONOLAR SONOLAR-2013-05-15-SMT-EVAL-2013 default sat ✅ 0.44033 —
SONOLAR-SMT-COMP-2011 default sat ✅ 0.06580 —
SONOLAR-SMT-COMP-2012 default sat ✅ 0.49999 —
Tiffany de Wintermonte TdW-SMT-COMP-2012 default sat ✅ 0.18912 —
Z3 Z3-4.3.2.a054b099c1d6-x64-debian-6.0.6-SMT-EVAL-2013 default sat ✅ 8.69548 —
Z3-SMT-COMP-2011 default sat ✅ 12.02430 —
SMT-COMP 2014 Boolector Boolector boolectord sat ✅ 0.09405 0.08299
Boolector boolectorj sat ✅ 0.09372 0.08299
CVC4 CVC4 f7118b2 default sat ✅ 1.31955 1.30980
Kleaver Kleaver-indie-more-typed kleaver_indie_1 sat ✅ 0.06089 0.05099
Kleaver-indie-more-typed kleaver_portfolio sat ✅ 0.06250 0.15498
MathSAT MathSAT-5.2.12-Main default sat ✅ 0.18424 0.18297
SONOLAR sonolar_smtcomp-2014 default sat ✅ 0.20722 0.19597
Yices2 Yices-2.2.1-smtcomp2014 default sat ✅ 0.10806 0.09998
Z3 Z3-4.3.2.a054b099c1d6-x64-debian-6.0.6-SMT-COMP-2014 default sat ✅ 4.74442 4.73828
SMT-COMP 2015 Boolector Boolector SMT15 QF_AUFBV final boolector_qf_aufbv sat ✅ 0.11143 0.11098
CVC4 CVC4-master-2015-06-15-9b32405-main default sat ✅ 1.15897 1.15682
CVC4-experimental-2015-06-15-ff5745a-main default sat ✅ 0.88132 0.87887
MathSAT MathSat 5.3.6 main smtcomp2015_main sat ✅ 0.19247 0.19197
Yices2 Yices default sat ✅ 0.09983 0.09898
Z3 z3 4.4.0 default sat ✅ 7.72034 7.72283
SMT-COMP 2016 Boolector Boolector boolector sat ✅ 0.07895 0.07896
CVC4 CVC4-master-2016-05-27-cfef263-main default sat ✅ 0.34756 0.34795
MathSAT mathsat-5.3.11-linux-x86_64-Main default sat ✅ 0.19190 0.19297
Yices2 Yices-2.4.2 default sat ✅ 0.09963 0.10023
Z3 z3-4.4.1 default sat ✅ 5.64608 5.65064
SMT-COMP 2017 Boolector Boolector SMT17 final boolector sat ✅ 0.26525 0.26482
CVC4 CVC4-smtcomp2017-main default sat ✅ 0.39379 0.39375
MathSAT mathsat-5.4.1-linux-x86_64-Main default sat ✅ 0.19120 0.19173
Yices2 Yices2-Main default sat ✅ 0.10371 0.09914
Z3 z3-4.5.0 default sat ✅ 2.40776 2.40717
SMT-COMP 2018 0.20 (4/5) Boolector Boolector_default sat ✅ 0.13281 0.13276
CVC4 master-2018-06-10-b19c840-competition-default_default sat ✅ 0.40575 0.40598
MathSAT mathsat-5.5.2-linux-x86_64-Main_default unknown ❌ 0.19912 0.20004
Yices2 Yices 2.6.0_default sat ✅ 0.09684 0.09675
Z3 z3-4.7.1_default sat ✅ 1.28974 1.28963
SMT-COMP 2021 MathSAT mathsat-5.6.6_default sat ✅ 0.18362 0.18356
Yices2 Yices 2.6.2 bug fix_default sat ✅ 0.09598 0.09594
Yices 2.6.2 for SMTCOMP2020_default sat ✅ 0.09867 0.09735
Z3 z3-4.8.11_default sat ✅ 15.68700 15.68660
SMT-COMP 2022 Bitwuzla Bitwuzla-wrapped_default sat ✅ 0.12398 0.12392
cvc5 cvc5-default-2022-07-02-b15e116-wrapped_sq sat ✅ 15.72320 15.72270
MathSAT MathSAT-5.6.8_default sat ✅ 0.19270 0.19266
Yices2 Yices 2.6.2 for SMTCOMP 2021_default sat ✅ 0.09793 0.09790
Z3 z3-4.8.17_default sat ✅ 15.12860 15.13020
SMT-COMP 2023 Bitwuzla Bitwuzla-fixed_default sat ✅ 0.03358 0.03351
cvc5 cvc5-default-2023-05-16-ea045f305_sq sat ✅ 12.67310 12.66920
UltimateEliminator UltimateIntBlastingWrapper+SMTInterpol_default sat ✅ 15.88250 89.77370
Yices2 Yices 2 for SMTCOMP 2023_default sat ✅ 0.09721 0.09717
Z3-Owl z3-Owl-Final_default sat ✅ 0.70928 0.70921
z3-Owl-Final_default sat ✅ 15.30140 15.30150