On program transformations and soundness of both contract and termination checking and uses its own reasoning steps, as well as invocations to solvers (theorem provers) z3, CVC4, and Princess. Inox supports model-complete queries in a feature-rich fragment that lets Stainless focus Stainless relies on Inox to solve the various queries stemming from program verification. See the LICENSE file for more information. License Stainless is released under the Apache 2.0 license. Or see local documentation chapters, such as: Formal Verification Course: Getting Started, Tutorial 1 Tutorial 2 Tutorial 3 Tutorial 4, Assertions, Unfolding, Dispenser Example.Further Documentation and Learning Materials Stainless France, exclusive distributing agent and stockist for french and international companies, producing metallurgical products of high technical. More information is available in the documentation links. See frontends/benchmarks/verification/valid/ and related directories for some benchmarks andīolts repository for a larger collection. The default behavior of Stainless is to formally verify files, instead of generating JVM class files. Our slogan - for stainless solutions - says it all: we operate internationally and offer customised solutions for both the food and process industries. Use one of these scripts as you would use scalac to compile Scala files. frontends/dotty/target/universal/stage/bin/stainless-dotty.frontends/scalac/target/universal/stage/bin/stainless-scalac.If all goes well, scripts are generated for Scala 3 and Scala 2 versions of the front end: To build the project, run sbt universal:stage. To start quickly, install a JVM and use a recent release. Z3 and CVC4 can still be used if their executable can be found in the $PATH. Note that this method only ships the Princess SMT solver. Verification occurs with the usual compile command. ThisBuild / version : = "0.1.0 " ThisBuild / scalaVersion : = "3.2.0 " lazy val myTestProject = (project in file( ". To do so, download sbt-stainless, and move it to the directory of the project. The supported Scala versions are 3.2.0 and 2.13.6 SBT Stainless pluginĪlternatively, one may integrate Stainless with SBT. In metallurgy, stainless steel, also known as inox steel or inox from French inoxydable, is a steel alloy with a minimum of 10.5 chromium content by mass. If z3 API is not found, use option -solvers=smt-z3 to rely on the executable. It is shipped with Z3 4.8.14 and Princess. In particular, it needs neither a Scala compiler nor SBT. The release archive of Stainless only requires JDK17. If you see funny symbols instead of the beautiful ASCII art, run Stainless with -no-colors option for clean ASCII output with standardized error message format. ║ total: 1 valid: 1 (0 from cache) invalid: 0 unknown: 0 time: 0,0 ║ ║ HelloStainless.scala:6:5: myTail body assertion: match exhaustiveness nativez3 0,0 ║ Analysis of the iron content and acid concentrations determine when the treatment is complete. The duration of this treatment depends on the type of stainless steel and the temperature. The passivation fluid is circulated through the installation or system using acid-resistant pump units. The pickling treatment results in a chrome-rich surface.Īlthough the stainless steel will spontaneously passivate after pickling (forming a protective chromium oxide film) by exposure to sufficient oxygen in the outside air, closed systems are generally chemically passivated. After pickling, the material is rinsed with low-chloride water to remove acid residues. The pickling treatment removes iron particles and other contaminants from previous treatments on the material such as welding, handling, etc. Degreasing is necessary to remove oil, grease and atmospheric contamination and to make the surface optimally accessible for the pickling agent. Pre-commissioning cleaning of austenitic stainless steel generally involves three steps: degreasing, pickling and passivating.
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