Benchmark

non-incremental/QF_BV/brummayerbiere2/smulov4bw0256.smt2 

We try to verify a verification condition for a signed multiplication
overflow detection unit, which is described in
"Combined Unsigned and Two's Complement Saturating Multipliers"
by M. Schulte et al.

Let n be the bit-width, which is even.
We try to verify the following.
If the n/2 most significant bits of the operands are zero, then
the overflow detection unit must not yield an overflow.
Obviously, this is an invalid verification condition
as for example 0011 * 0011 = 1001 overflows in the signed case, which
is correctly detected by the unit.

Bit-width: 256

Contributed by Robert Brummayer (robert.brummayer@gmail.com).
Benchmark
Size34839
Compressed Size4055
License Creative Commons Attribution 4.0 International (CC-BY-4.0)
Categoryindustrial
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 34831
Compressed Size4063
Max. Term Depth518
Asserts 1
Declared Functions0
Declared Constants2
Declared Sorts 0
Defined Functions0
Defined Recursive Functions 0
Defined Sorts0
Constants0
Declared Datatypes0

Symbols

ite7 not1 =8 let256
concat4 extract516 bvnot770 bvand769
bvmul1

Evaluations

Evaluation Rating Solver Variant Result Wallclock CPU Time
SMT Evaluation 2013 4Simp 4Simp-SMT-COMP-2012 default sat ✅ 3.57000 —
Abziz abziz_portfolio_2011_minfeatures_2 default sat ✅ 8.37764 —
abziz_portfolio_2011_solvers_2 default sat ✅ 6.09825 —
abziz_portfolio_2012_minfeatures default sat ✅ 14.51020 —
abziz_portfolio_2012_solvers default sat ✅ 14.75580 —
AbzizPortfolio-SMT-COMP-2012 default sat ✅ 8.38481 —
Boolector Boolector-1.5.118-SMT-EVAL-2013 default sat ✅ 0.20806 —
Boolector-SMT-COMP-2011 default sat ✅ 15.33780 —
Boolector-SMT-COMP-2012 default sat ✅ 9.47436 —
CVC3 CVC3-SMT-COMP-2010 default sat ✅ 6.29236 —
CVC3-SMT-COMP-2011 default sat ✅ 5.89713 —
CVC3-SMT-COMP-2012 default sat ✅ 5.88570 —
CVC4 CVC4-SMT-COMP-2012-Resubmission default sat ✅ 2.41285 —
CVC4-SMT-EVAL-2013 default sat ✅ 2.55205 —
MathSAT MathSAT5-5.2.6-SMT-EVAL-2013 default sat ✅ 1.05783 —
MathSAT5-HeavyBV-SMT-COMP-2012 default sat ✅ 6.31743 —
MathSAT5-SMT-COMP-2011 default sat ✅ 0.95092 —
MathSAT5-SMT-COMP-2012 default sat ✅ 0.98233 —
SONOLAR SONOLAR-2013-05-15-SMT-EVAL-2013 default sat ✅ 3.62866 —
SONOLAR-SMT-COMP-2010 default sat ✅ 2.16512 —
SONOLAR-SMT-COMP-2011 default sat ✅ 3.25557 —
SONOLAR-SMT-COMP-2012 default sat ✅ 3.63188 —
STP STP2-SMT-COMP-2011 default sat ✅ 3.93909 —
STP2-SMT-COMP-2012 default sat ✅ 2.30312 —
simplifyingSTP-SMT-COMP-2010 default sat ✅ 1.20288 —
Z3 Z3-4.3.2.a054b099c1d6-x64-debian-6.0.6-SMT-EVAL-2013 default sat ✅ 151.08800 —
Z3-SMT-COMP-2011 default sat ✅ 21.38060 —
SMT-COMP 2014 4Simp 4Simp - 2014 default sat ✅ 3.61990 3.62145
Abziz abziz_portfolio_all_features default sat ✅ 5.40793 5.30394
abziz_portfolio_min_features default sat ✅ 5.41528 5.28594
Boolector Boolector boolector sat ✅ 13.47430 13.47100
CVC4 CVC4 f7118b2 default sat ✅ 3.36330 6.67198
MathSAT MathSAT-5.2.12-Main default sat ✅ 1.17313 1.16482
SONOLAR sonolar_smtcomp-2014 default sat ✅ 2.09175 2.08068
STP stp-cryptominisat4 default sat ✅ 0.95029 0.94186
Yices2 Yices-2.2.1-smtcomp2014 default sat ✅ 0.12105 0.10998
Z3 Z3-4.3.2.a054b099c1d6-x64-debian-6.0.6-SMT-COMP-2014 default sat ✅ 28.97390 28.97160
SMT-COMP 2015 Boolector Boolector SMT15 QF_BV final boolector_qf_bv sat ✅ 159.92800 159.98100
CVC4 CVC4-master-2015-06-15-9b32405-main default sat ✅ 3.74428 7.45087
CVC4-experimental-2015-06-15-ff5745a-main default sat ✅ 3.50067 6.96194
MathSAT MathSat 5.3.6 main smtcomp2015_main sat ✅ 4.31141 4.31234
SMT-RAT SMT-RAT-final default sat ✅ 77.70460 77.71820
STP stp-cryptominisat4 default sat ✅ 0.93588 0.93486
stp-cmsat4-v15 default sat ✅ 2.41037 2.40963
stp-cmsat4-mt-v15 default unknown ❌ 0.77318 0.77188
stp-minisat-v15 default sat ✅ 2.95783 2.95755
Yices2 Yices default sat ✅ 0.10534 0.10398
Z3 z3 4.4.0 default sat ✅ 144.99000 145.01300
SMT-COMP 2016 0.10 (9/10) ABC ABC_default default_abc sat ✅ 73.16140 73.20090
ABC_glucose glucose sat ✅ 25.25780 25.24440
Boolector Boolector boolector sat ✅ 106.75800 106.82700
Boolector preprop boolector sat ✅ 0.23265 0.23294
CVC4 CVC4-master-2016-05-27-cfef263-main default sat ✅ 3.53906 7.04213
MapleSTP MapleSTP default sat ✅ 4.87656 4.88002
MapleSTP-mt default sat ✅ 6.00650 20.32530
MathSAT mathsat-5.3.11-linux-x86_64-Main default sat ✅ 3.72223 3.72538
MinkeyRink Minkeyrink 2016 default sat ✅ 20.60920 32.20860
Q3B Q3B default unknown ❌ 2400.02000 7203.70000
STP stp-cms-exp-2016 default sat ✅ 3.11204 3.11369
stp-cms-mt-2016 default sat ✅ 3.10261 9.91194
stp-cms-st-2016 default sat ✅ 3.70341 3.70549
stp-minisat-st-2016 default sat ✅ 11.96920 11.97720
Yices2 Yices-2.4.2 default sat ✅ 0.11346 0.11349
Z3 z3-4.4.1 default sat ✅ 28.87740 28.89340
SMT-COMP 2017 0.12 (7/8) Boolector Boolector+CaDiCaL SMT17 final boolector sat ✅ 1.59872 1.59773
Boolector SMT17 final boolector sat ✅ 1.60244 1.60207
CVC4 CVC4-smtcomp2017-main default sat ✅ 3.67018 7.30075
MathSAT mathsat-5.4.1-linux-x86_64-Main default sat ✅ 3.90844 3.90857
MinkeyRink MinkeyRink 2017.3a default sat ✅ 38.14960 70.40000
Q3B Q3B default unknown ❌ 600.05700 1786.64000
STP stp_st default sat ✅ 3.22313 3.21752
stp_mt default sat ✅ 3.18788 9.64899
Yices2 Yices2-Main default sat ✅ 0.12447 0.11419
Z3 z3-4.5.0 default sat ✅ 31.87500 31.86280
SMT-COMP 2018 Boolector Boolector_default sat ✅ 1.07267 1.07251
CVC4 master-2018-06-10-b19c840-competition-default_default sat ✅ 3.40087 3.40073
MathSAT mathsat-5.5.2-linux-x86_64-Main_default sat ✅ 3.94580 3.94650
MinkeyRink Minkeyrink MT_mt sat ✅ 15.14280 54.88580
Minkeyrink ST_st sat ✅ 9.64409 9.64374
STP STP-CMS-st-2018_default-no-stderr sat ✅ 2.27555 2.27510
STP-CMS-mt-2018_multicore-no-stderr sat ✅ 2.67484 7.76401
STP-Riss-st-2018_riss-no-stderr sat ✅ 6.35369 6.35363
Yices2 Yices 2.6.0_default sat ✅ 0.09847 0.09839
Z3 z3-4.7.1_default sat ✅ 25.38880 25.38870