Benchmark

non-incremental/FP/20200911-Pine/1599121980164940000.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:
   u' := u + 0.01 * v
   v' := v + 0.01 * (-0.5 * v - 9.81 * u)

 Input ranges:
   u in [0.0,0.0]
   v in [2.0,3.0]

 Invariant:
   -0.11*u + 1.0*u^2 + 0.04*u*v + 0.1*v^2 <= 1.64
 and
   u in [-1.3,1.4]
   v in [-4.1,4.1]

 Query: Loop and Invariant and not Invariant'
Benchmark
Size3778
Compressed Size1179
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 None
Size 3770
Compressed Size1183
Max. Term Depth29
Asserts 1
Declared Functions0
Declared Constants4
Declared Sorts 0
Defined Functions0
Defined Recursive Functions 0
Defined Sorts0
Constants0
Declared Datatypes0

Symbols

not1 and6 let25 fp22
fp.add8 fp.sub1 fp.mul18 fp.neg1
fp.leq10 fp.eq2 roundNearestTiesToEven27

Evaluations

Evaluation Rating Solver Variant Result Wallclock CPU Time
SMT-COMP 2023 1.00 (0/3) Bitwuzla Bitwuzla-fixed_default unknown ❌ 1200.11000 1200.00000
cvc5 cvc5-default-2023-05-16-ea045f305_sq unknown ❌ 1200.12000 1197.43000
UltimateEliminator UltimateEliminator+MathSAT-5.6.9_default unknown ❌ 6.82911 4.37659
SMT-COMP 2024 0.50 (1/2) Bitwuzla Bitwuzla unsat ✅ 1030.11342 1029.93755
cvc5 cvc5 unknown ❌ 1201.71889 1200.62218
SMT-COMP 2025 0.67 (1/3) Bitwuzla Bitwuzla unsat ✅ 1020.14524 1019.87878
cvc5 cvc5 unknown ❌ 1201.76962 1200.95051
UltimateEliminator UltimateEliminator+MathSAT unknown ❌ 1201.75268 1205.50101