Benchmark

non-incremental/QF_NRA/20200911-Pine/1599121861673275000.smt2

These benchmarks were generated while developing the tool Pine [1], which uses
CVC4/Z3 to check inductiveness of invariants. The work is described in [2].

[1] https://github.com/izycheva/pine
[2] A.Izycheva, E.Darulova, H.Seidl, SAS'20, "Counterexample- and Simulation-Guided Floating-Point Loop Invariant Synthesis"

 Loop:
   x1' := x1 + 0.01 * x2
   x2' := -0.01 * x1 + 0.99 * x2

 Input ranges:
   x1 in [0.0,1.0]
   x2 in [0.0,1.0]

 Invariant:
   -1.0*x1 + -0.31*x2 + 0.85*x1^2 + 0.16*x1*x2 + 0.67*x2^2 <= 0.44
 and
   x1 in [-0.4,1.4]
   x2 in [-0.9,1.0]

 Query: Loop and Invariant and not Invariant'
Benchmark
Size1933
Compressed Size917
License Creative Commons Attribution 4.0 International (CC-BY-4.0)
Categoryindustrial
First Occurrence2021-07-18
Generated ByAnastasiia Izycheva, Eva Darulova
Generated On2020-09-11 00:00:00
GeneratorPine (using Z3 Python API)
Dolmen OK1
strict Dolmen OK1
check-sat calls1
Query 1
Status unknown
Inferred Status sat
Size 1925
Compressed Size924
Max. Term Depth17
Asserts 1
Declared Functions0
Declared Constants4
Declared Sorts 0
Defined Functions0
Defined Recursive Functions 0
Defined Sorts0
Constants0
Declared Datatypes0

Symbols

not1 and6 =2 let8
/19 +10 -9 *19
<=4 >=6

Evaluations

Evaluation Rating Solver Variant Result Wallclock CPU Time
SMT-COMP 2021 0.70 (3/10) CVC4 CVC4-sq-final_default unknown ❌ 31.42330 31.37430
cvc5 cvc5-fixed_default unknown ❌ 1200.02000 1199.87000
Par4 Par4-wrapped-sq_default sat ✅ 0.02828 0.00652
UltimateEliminator UltimateEliminator+MathSAT-5.6.6_default unknown ❌ 1200.03000 1203.66000
Vampire vampire_smt_4.6-fixed_vampire_smtcomp unknown ❌ 1200.05000 4649.79000
YicesQS yices-QS-2021-06-13under10_default sat ✅ 0.05426 0.05428
Z3 z3-4.8.11_default sat ✅ 0.02054 0.02065
z3-4.8.8_default sat ✅ 0.03585 0.03588
SMT-COMP 2022 0.11 (8/9) cvc5 cvc5-default-2022-07-02-b15e116-wrapped_sq sat ✅ 0.05302 0.05343
MathSAT MathSAT-5.6.8_default unknown ❌ 1200.02000 1199.99000
NRA-LS NRA-LS-FINAL_default sat ✅ 0.04743 0.04748
Par4 Par4-wrapped-sq_default sat ✅ 0.03985 0.00786
SMT-RAT SMT-RAT-MCSAT_default sat ✅ 0.10935 0.10932
veriT veriT+raSAT+Redlog_default sat ✅ 0.21463 0.21588
Yices2 Yices 2.6.2 for SMTCOMP 2021_default sat ✅ 0.02596 0.02592
Z3 z3-4.8.17_default sat ✅ 0.02185 0.02382
Z3++ z3++0715_default sat ✅ 0.28395 0.28403
SMT-COMP 2024 0.20 (4/5) cvc5 cvc5 sat ✅ 0.22636 0.12663
SMTInterpol SMTInterpol unknown ❌ 0.44750 0.46189
SMT-RAT SMT-RAT sat ✅ 0.23643 0.13663
Yices2 Yices2 sat ✅ 0.26078 0.16106
Z3alpha Z3-alpha sat ✅ 0.28964 0.19002