./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product57.cil.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec4_product57.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7573d0f26b9c64760f56bc1038037f99fa78fd69add5234955c16ce4082df45a --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:18:06,823 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:18:06,825 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:18:06,868 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:18:06,869 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:18:06,872 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:18:06,874 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:18:06,877 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:18:06,879 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:18:06,884 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:18:06,885 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:18:06,886 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:18:06,886 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:18:06,889 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:18:06,890 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:18:06,892 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:18:06,893 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:18:06,894 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:18:06,897 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:18:06,904 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:18:06,906 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:18:06,907 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:18:06,908 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:18:06,908 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:18:06,910 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:18:06,910 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:18:06,911 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:18:06,911 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:18:06,912 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:18:06,912 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:18:06,912 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:18:06,913 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:18:06,914 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:18:06,916 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:18:06,917 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:18:06,917 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:18:06,918 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:18:06,918 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:18:06,918 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:18:06,919 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:18:06,920 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:18:06,921 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:18:06,949 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:18:06,950 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:18:06,950 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:18:06,950 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:18:06,951 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:18:06,951 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:18:06,952 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:18:06,952 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:18:06,952 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:18:06,952 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:18:06,952 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:18:06,953 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:18:06,953 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:18:06,953 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:18:06,953 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:18:06,953 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:18:06,954 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:18:06,954 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:18:06,954 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:18:06,954 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:18:06,954 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:18:06,955 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:18:06,955 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:18:06,955 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:18:06,955 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:18:06,955 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:18:06,956 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:18:06,956 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:18:06,956 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:18:06,956 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:18:06,957 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:18:06,957 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:18:06,958 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7573d0f26b9c64760f56bc1038037f99fa78fd69add5234955c16ce4082df45a [2022-02-21 04:18:07,151 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:18:07,173 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:18:07,175 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:18:07,176 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:18:07,177 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:18:07,178 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product57.cil.c [2022-02-21 04:18:07,236 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86a80781d/86e7e22891ec4133875a7d7d1d66379a/FLAGacee75fc5 [2022-02-21 04:18:07,646 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:18:07,647 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product57.cil.c [2022-02-21 04:18:07,658 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86a80781d/86e7e22891ec4133875a7d7d1d66379a/FLAGacee75fc5 [2022-02-21 04:18:08,035 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86a80781d/86e7e22891ec4133875a7d7d1d66379a [2022-02-21 04:18:08,037 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:18:08,038 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:18:08,041 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:18:08,041 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:18:08,043 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:18:08,044 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:18:08" (1/1) ... [2022-02-21 04:18:08,045 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a882ea1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:08, skipping insertion in model container [2022-02-21 04:18:08,046 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:18:08" (1/1) ... [2022-02-21 04:18:08,052 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:18:08,096 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:18:08,333 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product57.cil.c[18691,18704] [2022-02-21 04:18:08,334 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:18:08,344 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:18:08,464 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product57.cil.c[18691,18704] [2022-02-21 04:18:08,465 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:18:08,487 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:18:08,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:08 WrapperNode [2022-02-21 04:18:08,488 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:18:08,489 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:18:08,489 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:18:08,489 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:18:08,495 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:08" (1/1) ... [2022-02-21 04:18:08,509 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:08" (1/1) ... [2022-02-21 04:18:08,556 INFO L137 Inliner]: procedures = 56, calls = 156, calls flagged for inlining = 53, calls inlined = 95, statements flattened = 725 [2022-02-21 04:18:08,557 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:18:08,557 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:18:08,558 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:18:08,558 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:18:08,565 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:08" (1/1) ... [2022-02-21 04:18:08,567 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:08" (1/1) ... [2022-02-21 04:18:08,571 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:08" (1/1) ... [2022-02-21 04:18:08,582 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:08" (1/1) ... [2022-02-21 04:18:08,591 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:08" (1/1) ... [2022-02-21 04:18:08,608 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:08" (1/1) ... [2022-02-21 04:18:08,610 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:08" (1/1) ... [2022-02-21 04:18:08,612 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:18:08,613 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:18:08,627 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:18:08,627 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:18:08,628 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:08" (1/1) ... [2022-02-21 04:18:08,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:18:08,649 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:18:08,662 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-02-21 04:18:08,666 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-02-21 04:18:08,691 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:18:08,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:18:08,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:18:08,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:18:08,753 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:18:08,754 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:18:09,207 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:18:09,214 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:18:09,214 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:18:09,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:09 BoogieIcfgContainer [2022-02-21 04:18:09,216 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:18:09,217 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:18:09,217 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:18:09,220 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:18:09,221 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:09,221 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:18:08" (1/3) ... [2022-02-21 04:18:09,226 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@21834b07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:18:09, skipping insertion in model container [2022-02-21 04:18:09,227 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:09,227 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:08" (2/3) ... [2022-02-21 04:18:09,227 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@21834b07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:18:09, skipping insertion in model container [2022-02-21 04:18:09,227 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:09,227 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:09" (3/3) ... [2022-02-21 04:18:09,229 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product57.cil.c [2022-02-21 04:18:09,262 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:18:09,262 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:18:09,262 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:18:09,262 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:18:09,262 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:18:09,262 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:18:09,262 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:18:09,262 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:18:09,279 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 186 states, 185 states have (on average 1.3621621621621622) internal successors, (252), 185 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:09,328 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 120 [2022-02-21 04:18:09,328 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:09,328 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:09,334 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:09,334 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:09,334 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:18:09,336 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 186 states, 185 states have (on average 1.3621621621621622) internal successors, (252), 185 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:09,352 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 120 [2022-02-21 04:18:09,352 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:09,352 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:09,361 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:09,361 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:09,365 INFO L791 eck$LassoCheckResult]: Stem: 165#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 56#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret30#1, main_~retValue_acc~10#1, main_~tmp~7#1;havoc main_~retValue_acc~10#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 160#L500true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 18#L493true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; 43#L508true main_#t~ret30#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret30#1;havoc main_#t~ret30#1; 184#L595true assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 143#L572true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 186#L64-2true [2022-02-21 04:18:09,372 INFO L793 eck$LassoCheckResult]: Loop: 186#L64-2true assume !false; 187#L65true assume test_~splverifierCounter~0#1 < 4; 49#L66true test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 101#L74true assume !(0 != test_~tmp~0#1); 146#L74-2true test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 161#L84true assume !(0 != test_~tmp___0~0#1); 35#L84-2true test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 162#L94true assume 0 != test_~tmp___2~0#1; 135#L100-2true assume { :begin_inline_timeShift } true; 22#L136true assume !(0 != ~pumpRunning~0); 44#L136-2true assume !(0 != ~systemActive~0); 119#L143-1true assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret22#1, __utac_acc__Specification4_spec__1_#t~ret23#1, __utac_acc__Specification4_spec__1_~tmp~6#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~6#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; 36#L447true __utac_acc__Specification4_spec__1_#t~ret22#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~6#1 := __utac_acc__Specification4_spec__1_#t~ret22#1;havoc __utac_acc__Specification4_spec__1_#t~ret22#1; 79#L354true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~6#1); 58#L354-1true assume { :end_inline___utac_acc__Specification4_spec__1 } true; 11#L153true assume { :end_inline_timeShift } true; 186#L64-2true [2022-02-21 04:18:09,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:09,381 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-02-21 04:18:09,389 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:09,390 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458302836] [2022-02-21 04:18:09,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:09,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:09,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:09,517 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:09,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:09,594 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:09,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:09,600 INFO L85 PathProgramCache]: Analyzing trace with hash 1892791780, now seen corresponding path program 1 times [2022-02-21 04:18:09,600 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:09,601 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659365303] [2022-02-21 04:18:09,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:09,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:09,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:09,627 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:09,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:09,636 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:09,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:09,639 INFO L85 PathProgramCache]: Analyzing trace with hash -1046756440, now seen corresponding path program 1 times [2022-02-21 04:18:09,640 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:09,640 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022707811] [2022-02-21 04:18:09,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:09,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:09,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:09,785 INFO L290 TraceCheckUtils]: 0: Hoare triple {194#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; {196#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:09,786 INFO L290 TraceCheckUtils]: 1: Hoare triple {196#(= 1 ~systemActive~0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret30#1, main_~retValue_acc~10#1, main_~tmp~7#1;havoc main_~retValue_acc~10#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; {196#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:09,786 INFO L290 TraceCheckUtils]: 2: Hoare triple {196#(= 1 ~systemActive~0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {196#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:09,787 INFO L290 TraceCheckUtils]: 3: Hoare triple {196#(= 1 ~systemActive~0)} assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; {197#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} is VALID [2022-02-21 04:18:09,788 INFO L290 TraceCheckUtils]: 4: Hoare triple {197#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} main_#t~ret30#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret30#1;havoc main_#t~ret30#1; {198#(= |ULTIMATE.start_main_~tmp~7#1| ~systemActive~0)} is VALID [2022-02-21 04:18:09,788 INFO L290 TraceCheckUtils]: 5: Hoare triple {198#(= |ULTIMATE.start_main_~tmp~7#1| ~systemActive~0)} assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; {199#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:09,789 INFO L290 TraceCheckUtils]: 6: Hoare triple {199#(not (= 0 ~systemActive~0))} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {199#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:09,789 INFO L290 TraceCheckUtils]: 7: Hoare triple {199#(not (= 0 ~systemActive~0))} assume !false; {199#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:09,790 INFO L290 TraceCheckUtils]: 8: Hoare triple {199#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0#1 < 4; {199#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:09,791 INFO L290 TraceCheckUtils]: 9: Hoare triple {199#(not (= 0 ~systemActive~0))} test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; {199#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:09,791 INFO L290 TraceCheckUtils]: 10: Hoare triple {199#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~0#1); {199#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:09,792 INFO L290 TraceCheckUtils]: 11: Hoare triple {199#(not (= 0 ~systemActive~0))} test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; {199#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:09,793 INFO L290 TraceCheckUtils]: 12: Hoare triple {199#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~0#1); {199#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:09,793 INFO L290 TraceCheckUtils]: 13: Hoare triple {199#(not (= 0 ~systemActive~0))} test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; {199#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:09,794 INFO L290 TraceCheckUtils]: 14: Hoare triple {199#(not (= 0 ~systemActive~0))} assume 0 != test_~tmp___2~0#1; {199#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:09,794 INFO L290 TraceCheckUtils]: 15: Hoare triple {199#(not (= 0 ~systemActive~0))} assume { :begin_inline_timeShift } true; {199#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:09,795 INFO L290 TraceCheckUtils]: 16: Hoare triple {199#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {199#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:09,795 INFO L290 TraceCheckUtils]: 17: Hoare triple {199#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {195#false} is VALID [2022-02-21 04:18:09,796 INFO L290 TraceCheckUtils]: 18: Hoare triple {195#false} assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret22#1, __utac_acc__Specification4_spec__1_#t~ret23#1, __utac_acc__Specification4_spec__1_~tmp~6#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~6#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; {195#false} is VALID [2022-02-21 04:18:09,796 INFO L290 TraceCheckUtils]: 19: Hoare triple {195#false} __utac_acc__Specification4_spec__1_#t~ret22#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~6#1 := __utac_acc__Specification4_spec__1_#t~ret22#1;havoc __utac_acc__Specification4_spec__1_#t~ret22#1; {195#false} is VALID [2022-02-21 04:18:09,796 INFO L290 TraceCheckUtils]: 20: Hoare triple {195#false} assume !(0 == __utac_acc__Specification4_spec__1_~tmp~6#1); {195#false} is VALID [2022-02-21 04:18:09,797 INFO L290 TraceCheckUtils]: 21: Hoare triple {195#false} assume { :end_inline___utac_acc__Specification4_spec__1 } true; {195#false} is VALID [2022-02-21 04:18:09,797 INFO L290 TraceCheckUtils]: 22: Hoare triple {195#false} assume { :end_inline_timeShift } true; {195#false} is VALID [2022-02-21 04:18:09,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:18:09,799 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:09,800 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022707811] [2022-02-21 04:18:09,801 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022707811] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:09,801 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:09,801 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:18:09,801 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868268017] [2022-02-21 04:18:09,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:09,932 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:09,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-21 04:18:09,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-21 04:18:09,979 INFO L87 Difference]: Start difference. First operand has 186 states, 185 states have (on average 1.3621621621621622) internal successors, (252), 185 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:10,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:10,485 INFO L93 Difference]: Finished difference Result 183 states and 238 transitions. [2022-02-21 04:18:10,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-21 04:18:10,486 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:10,510 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 23 edges. 23 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:18:10,524 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 183 states and 238 transitions. [2022-02-21 04:18:10,540 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 116 [2022-02-21 04:18:10,549 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 183 states to 173 states and 228 transitions. [2022-02-21 04:18:10,551 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 173 [2022-02-21 04:18:10,555 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 173 [2022-02-21 04:18:10,556 INFO L73 IsDeterministic]: Start isDeterministic. Operand 173 states and 228 transitions. [2022-02-21 04:18:10,556 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:10,557 INFO L681 BuchiCegarLoop]: Abstraction has 173 states and 228 transitions. [2022-02-21 04:18:10,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states and 228 transitions. [2022-02-21 04:18:10,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2022-02-21 04:18:10,584 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:10,586 INFO L82 GeneralOperation]: Start isEquivalent. First operand 173 states and 228 transitions. Second operand has 173 states, 173 states have (on average 1.3179190751445087) internal successors, (228), 172 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:10,587 INFO L74 IsIncluded]: Start isIncluded. First operand 173 states and 228 transitions. Second operand has 173 states, 173 states have (on average 1.3179190751445087) internal successors, (228), 172 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:10,589 INFO L87 Difference]: Start difference. First operand 173 states and 228 transitions. Second operand has 173 states, 173 states have (on average 1.3179190751445087) internal successors, (228), 172 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:10,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:10,596 INFO L93 Difference]: Finished difference Result 173 states and 228 transitions. [2022-02-21 04:18:10,596 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 228 transitions. [2022-02-21 04:18:10,598 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:10,598 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:10,599 INFO L74 IsIncluded]: Start isIncluded. First operand has 173 states, 173 states have (on average 1.3179190751445087) internal successors, (228), 172 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 173 states and 228 transitions. [2022-02-21 04:18:10,600 INFO L87 Difference]: Start difference. First operand has 173 states, 173 states have (on average 1.3179190751445087) internal successors, (228), 172 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 173 states and 228 transitions. [2022-02-21 04:18:10,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:10,605 INFO L93 Difference]: Finished difference Result 173 states and 228 transitions. [2022-02-21 04:18:10,606 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 228 transitions. [2022-02-21 04:18:10,607 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:10,607 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:10,607 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:10,607 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:10,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 173 states have (on average 1.3179190751445087) internal successors, (228), 172 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:10,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 228 transitions. [2022-02-21 04:18:10,614 INFO L704 BuchiCegarLoop]: Abstraction has 173 states and 228 transitions. [2022-02-21 04:18:10,614 INFO L587 BuchiCegarLoop]: Abstraction has 173 states and 228 transitions. [2022-02-21 04:18:10,614 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:18:10,615 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 173 states and 228 transitions. [2022-02-21 04:18:10,616 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 116 [2022-02-21 04:18:10,616 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:10,616 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:10,617 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:10,617 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:10,617 INFO L791 eck$LassoCheckResult]: Stem: 558#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 482#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret30#1, main_~retValue_acc~10#1, main_~tmp~7#1;havoc main_~retValue_acc~10#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 483#L500 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 417#L493 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; 418#L508 main_#t~ret30#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret30#1;havoc main_#t~ret30#1; 462#L595 assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 551#L572 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 402#L64-2 [2022-02-21 04:18:10,618 INFO L793 eck$LassoCheckResult]: Loop: 402#L64-2 assume !false; 559#L65 assume test_~splverifierCounter~0#1 < 4; 472#L66 test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 473#L74 assume !(0 != test_~tmp~0#1); 521#L74-2 test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 553#L84 assume !(0 != test_~tmp___0~0#1); 450#L84-2 test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 451#L94 assume 0 != test_~tmp___2~0#1; 497#L100-2 assume { :begin_inline_timeShift } true; 423#L136 assume !(0 != ~pumpRunning~0); 424#L136-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret9#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 463#L194 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 403#L168-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 405#L160-3 assume { :end_inline_processEnvironment__wrappee__base } true; 460#L168-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 399#L194-1 assume { :end_inline_processEnvironment } true; 400#L143-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret22#1, __utac_acc__Specification4_spec__1_#t~ret23#1, __utac_acc__Specification4_spec__1_~tmp~6#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~6#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; 452#L447 __utac_acc__Specification4_spec__1_#t~ret22#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~6#1 := __utac_acc__Specification4_spec__1_#t~ret22#1;havoc __utac_acc__Specification4_spec__1_#t~ret22#1; 453#L354 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~6#1); 412#L354-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 401#L153 assume { :end_inline_timeShift } true; 402#L64-2 [2022-02-21 04:18:10,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:10,618 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-02-21 04:18:10,619 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:10,619 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915219128] [2022-02-21 04:18:10,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:10,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:10,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:10,633 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:10,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:10,654 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:10,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:10,659 INFO L85 PathProgramCache]: Analyzing trace with hash -1698451121, now seen corresponding path program 1 times [2022-02-21 04:18:10,659 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:10,660 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621725887] [2022-02-21 04:18:10,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:10,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:10,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:10,683 INFO L290 TraceCheckUtils]: 0: Hoare triple {911#true} assume !false; {911#true} is VALID [2022-02-21 04:18:10,684 INFO L290 TraceCheckUtils]: 1: Hoare triple {911#true} assume test_~splverifierCounter~0#1 < 4; {911#true} is VALID [2022-02-21 04:18:10,684 INFO L290 TraceCheckUtils]: 2: Hoare triple {911#true} test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; {911#true} is VALID [2022-02-21 04:18:10,684 INFO L290 TraceCheckUtils]: 3: Hoare triple {911#true} assume !(0 != test_~tmp~0#1); {911#true} is VALID [2022-02-21 04:18:10,685 INFO L290 TraceCheckUtils]: 4: Hoare triple {911#true} test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; {911#true} is VALID [2022-02-21 04:18:10,685 INFO L290 TraceCheckUtils]: 5: Hoare triple {911#true} assume !(0 != test_~tmp___0~0#1); {911#true} is VALID [2022-02-21 04:18:10,685 INFO L290 TraceCheckUtils]: 6: Hoare triple {911#true} test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; {911#true} is VALID [2022-02-21 04:18:10,685 INFO L290 TraceCheckUtils]: 7: Hoare triple {911#true} assume 0 != test_~tmp___2~0#1; {911#true} is VALID [2022-02-21 04:18:10,686 INFO L290 TraceCheckUtils]: 8: Hoare triple {911#true} assume { :begin_inline_timeShift } true; {911#true} is VALID [2022-02-21 04:18:10,686 INFO L290 TraceCheckUtils]: 9: Hoare triple {911#true} assume !(0 != ~pumpRunning~0); {913#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:18:10,687 INFO L290 TraceCheckUtils]: 10: Hoare triple {913#(= ~pumpRunning~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret9#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; {913#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:18:10,687 INFO L290 TraceCheckUtils]: 11: Hoare triple {913#(= ~pumpRunning~0 0)} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; {913#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:18:10,688 INFO L290 TraceCheckUtils]: 12: Hoare triple {913#(= ~pumpRunning~0 0)} assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; {912#false} is VALID [2022-02-21 04:18:10,688 INFO L290 TraceCheckUtils]: 13: Hoare triple {912#false} assume { :end_inline_processEnvironment__wrappee__base } true; {912#false} is VALID [2022-02-21 04:18:10,688 INFO L290 TraceCheckUtils]: 14: Hoare triple {912#false} assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; {912#false} is VALID [2022-02-21 04:18:10,689 INFO L290 TraceCheckUtils]: 15: Hoare triple {912#false} assume { :end_inline_processEnvironment } true; {912#false} is VALID [2022-02-21 04:18:10,689 INFO L290 TraceCheckUtils]: 16: Hoare triple {912#false} assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret22#1, __utac_acc__Specification4_spec__1_#t~ret23#1, __utac_acc__Specification4_spec__1_~tmp~6#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~6#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; {912#false} is VALID [2022-02-21 04:18:10,689 INFO L290 TraceCheckUtils]: 17: Hoare triple {912#false} __utac_acc__Specification4_spec__1_#t~ret22#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~6#1 := __utac_acc__Specification4_spec__1_#t~ret22#1;havoc __utac_acc__Specification4_spec__1_#t~ret22#1; {912#false} is VALID [2022-02-21 04:18:10,690 INFO L290 TraceCheckUtils]: 18: Hoare triple {912#false} assume !(0 == __utac_acc__Specification4_spec__1_~tmp~6#1); {912#false} is VALID [2022-02-21 04:18:10,690 INFO L290 TraceCheckUtils]: 19: Hoare triple {912#false} assume { :end_inline___utac_acc__Specification4_spec__1 } true; {912#false} is VALID [2022-02-21 04:18:10,690 INFO L290 TraceCheckUtils]: 20: Hoare triple {912#false} assume { :end_inline_timeShift } true; {912#false} is VALID [2022-02-21 04:18:10,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:18:10,691 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:10,691 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621725887] [2022-02-21 04:18:10,691 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621725887] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:10,692 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:10,692 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:18:10,692 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645385613] [2022-02-21 04:18:10,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:10,693 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:18:10,693 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:10,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:18:10,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:18:10,694 INFO L87 Difference]: Start difference. First operand 173 states and 228 transitions. cyclomatic complexity: 57 Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:10,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:10,947 INFO L93 Difference]: Finished difference Result 234 states and 296 transitions. [2022-02-21 04:18:10,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:18:10,948 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:10,967 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 21 edges. 21 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:18:10,968 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 234 states and 296 transitions. [2022-02-21 04:18:10,975 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 162 [2022-02-21 04:18:10,983 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 234 states to 234 states and 296 transitions. [2022-02-21 04:18:10,984 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 234 [2022-02-21 04:18:10,985 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 234 [2022-02-21 04:18:10,985 INFO L73 IsDeterministic]: Start isDeterministic. Operand 234 states and 296 transitions. [2022-02-21 04:18:10,989 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:10,989 INFO L681 BuchiCegarLoop]: Abstraction has 234 states and 296 transitions. [2022-02-21 04:18:10,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states and 296 transitions. [2022-02-21 04:18:11,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2022-02-21 04:18:11,008 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:11,009 INFO L82 GeneralOperation]: Start isEquivalent. First operand 234 states and 296 transitions. Second operand has 234 states, 234 states have (on average 1.264957264957265) internal successors, (296), 233 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:11,009 INFO L74 IsIncluded]: Start isIncluded. First operand 234 states and 296 transitions. Second operand has 234 states, 234 states have (on average 1.264957264957265) internal successors, (296), 233 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:11,010 INFO L87 Difference]: Start difference. First operand 234 states and 296 transitions. Second operand has 234 states, 234 states have (on average 1.264957264957265) internal successors, (296), 233 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:11,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:11,022 INFO L93 Difference]: Finished difference Result 234 states and 296 transitions. [2022-02-21 04:18:11,022 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 296 transitions. [2022-02-21 04:18:11,026 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:11,026 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:11,027 INFO L74 IsIncluded]: Start isIncluded. First operand has 234 states, 234 states have (on average 1.264957264957265) internal successors, (296), 233 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 234 states and 296 transitions. [2022-02-21 04:18:11,028 INFO L87 Difference]: Start difference. First operand has 234 states, 234 states have (on average 1.264957264957265) internal successors, (296), 233 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 234 states and 296 transitions. [2022-02-21 04:18:11,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:11,039 INFO L93 Difference]: Finished difference Result 234 states and 296 transitions. [2022-02-21 04:18:11,039 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 296 transitions. [2022-02-21 04:18:11,040 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:11,040 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:11,040 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:11,040 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:11,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 234 states have (on average 1.264957264957265) internal successors, (296), 233 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:11,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 296 transitions. [2022-02-21 04:18:11,046 INFO L704 BuchiCegarLoop]: Abstraction has 234 states and 296 transitions. [2022-02-21 04:18:11,046 INFO L587 BuchiCegarLoop]: Abstraction has 234 states and 296 transitions. [2022-02-21 04:18:11,047 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:18:11,047 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 234 states and 296 transitions. [2022-02-21 04:18:11,049 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 162 [2022-02-21 04:18:11,049 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:11,056 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:11,057 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:11,058 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:11,058 INFO L791 eck$LassoCheckResult]: Stem: 1327#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 1243#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret30#1, main_~retValue_acc~10#1, main_~tmp~7#1;havoc main_~retValue_acc~10#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 1244#L500 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1177#L493 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; 1178#L508 main_#t~ret30#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret30#1;havoc main_#t~ret30#1; 1221#L595 assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 1317#L572 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1163#L64-2 [2022-02-21 04:18:11,059 INFO L793 eck$LassoCheckResult]: Loop: 1163#L64-2 assume !false; 1329#L65 assume test_~splverifierCounter~0#1 < 4; 1330#L66 test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 1380#L74 assume !(0 != test_~tmp~0#1); 1378#L74-2 test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 1376#L84 assume !(0 != test_~tmp___0~0#1); 1374#L84-2 test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 1326#L94 assume 0 != test_~tmp___2~0#1; 1261#L100-2 assume { :begin_inline_timeShift } true; 1183#L136 assume !(0 != ~pumpRunning~0); 1184#L136-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret9#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 1222#L194 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 1164#L168-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret20#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;havoc isHighWaterSensorDry_~retValue_acc~6#1; 1165#L455-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; 1194#L460-1 isHighWaterLevel_#t~ret20#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret20#1;havoc isHighWaterLevel_#t~ret20#1; 1217#L314-3 assume !(0 != isHighWaterLevel_~tmp~4#1);isHighWaterLevel_~tmp___0~1#1 := 1; 1166#L314-5 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 1167#L320-1 processEnvironment__wrappee__highWaterSensor_#t~ret8#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret8#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1; 1207#L172-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1293#L160-2 assume { :end_inline_processEnvironment__wrappee__base } true; 1218#L168-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1160#L194-1 assume { :end_inline_processEnvironment } true; 1161#L143-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret22#1, __utac_acc__Specification4_spec__1_#t~ret23#1, __utac_acc__Specification4_spec__1_~tmp~6#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~6#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; 1212#L447 __utac_acc__Specification4_spec__1_#t~ret22#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~6#1 := __utac_acc__Specification4_spec__1_#t~ret22#1;havoc __utac_acc__Specification4_spec__1_#t~ret22#1; 1213#L354 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~6#1); 1174#L354-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 1162#L153 assume { :end_inline_timeShift } true; 1163#L64-2 [2022-02-21 04:18:11,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:11,060 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-02-21 04:18:11,061 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:11,061 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844153719] [2022-02-21 04:18:11,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:11,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:11,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:11,097 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:11,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:11,116 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:11,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:11,117 INFO L85 PathProgramCache]: Analyzing trace with hash -1557202683, now seen corresponding path program 1 times [2022-02-21 04:18:11,117 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:11,117 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712687370] [2022-02-21 04:18:11,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:11,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:11,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:11,153 INFO L290 TraceCheckUtils]: 0: Hoare triple {1855#true} assume !false; {1855#true} is VALID [2022-02-21 04:18:11,154 INFO L290 TraceCheckUtils]: 1: Hoare triple {1855#true} assume test_~splverifierCounter~0#1 < 4; {1855#true} is VALID [2022-02-21 04:18:11,154 INFO L290 TraceCheckUtils]: 2: Hoare triple {1855#true} test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; {1855#true} is VALID [2022-02-21 04:18:11,154 INFO L290 TraceCheckUtils]: 3: Hoare triple {1855#true} assume !(0 != test_~tmp~0#1); {1855#true} is VALID [2022-02-21 04:18:11,154 INFO L290 TraceCheckUtils]: 4: Hoare triple {1855#true} test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; {1855#true} is VALID [2022-02-21 04:18:11,154 INFO L290 TraceCheckUtils]: 5: Hoare triple {1855#true} assume !(0 != test_~tmp___0~0#1); {1855#true} is VALID [2022-02-21 04:18:11,155 INFO L290 TraceCheckUtils]: 6: Hoare triple {1855#true} test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; {1855#true} is VALID [2022-02-21 04:18:11,155 INFO L290 TraceCheckUtils]: 7: Hoare triple {1855#true} assume 0 != test_~tmp___2~0#1; {1855#true} is VALID [2022-02-21 04:18:11,155 INFO L290 TraceCheckUtils]: 8: Hoare triple {1855#true} assume { :begin_inline_timeShift } true; {1855#true} is VALID [2022-02-21 04:18:11,155 INFO L290 TraceCheckUtils]: 9: Hoare triple {1855#true} assume !(0 != ~pumpRunning~0); {1855#true} is VALID [2022-02-21 04:18:11,156 INFO L290 TraceCheckUtils]: 10: Hoare triple {1855#true} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret9#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; {1855#true} is VALID [2022-02-21 04:18:11,156 INFO L290 TraceCheckUtils]: 11: Hoare triple {1855#true} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; {1855#true} is VALID [2022-02-21 04:18:11,156 INFO L290 TraceCheckUtils]: 12: Hoare triple {1855#true} assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret20#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;havoc isHighWaterSensorDry_~retValue_acc~6#1; {1855#true} is VALID [2022-02-21 04:18:11,156 INFO L290 TraceCheckUtils]: 13: Hoare triple {1855#true} assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; {1855#true} is VALID [2022-02-21 04:18:11,156 INFO L290 TraceCheckUtils]: 14: Hoare triple {1855#true} isHighWaterLevel_#t~ret20#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret20#1;havoc isHighWaterLevel_#t~ret20#1; {1855#true} is VALID [2022-02-21 04:18:11,157 INFO L290 TraceCheckUtils]: 15: Hoare triple {1855#true} assume !(0 != isHighWaterLevel_~tmp~4#1);isHighWaterLevel_~tmp___0~1#1 := 1; {1857#(not (= |ULTIMATE.start_isHighWaterLevel_~tmp___0~1#1| 0))} is VALID [2022-02-21 04:18:11,158 INFO L290 TraceCheckUtils]: 16: Hoare triple {1857#(not (= |ULTIMATE.start_isHighWaterLevel_~tmp___0~1#1| 0))} isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; {1858#(not (= |ULTIMATE.start_isHighWaterLevel_#res#1| 0))} is VALID [2022-02-21 04:18:11,158 INFO L290 TraceCheckUtils]: 17: Hoare triple {1858#(not (= |ULTIMATE.start_isHighWaterLevel_#res#1| 0))} processEnvironment__wrappee__highWaterSensor_#t~ret8#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret8#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1; {1859#(not (= |ULTIMATE.start_processEnvironment__wrappee__highWaterSensor_~tmp~1#1| 0))} is VALID [2022-02-21 04:18:11,159 INFO L290 TraceCheckUtils]: 18: Hoare triple {1859#(not (= |ULTIMATE.start_processEnvironment__wrappee__highWaterSensor_~tmp~1#1| 0))} assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; {1856#false} is VALID [2022-02-21 04:18:11,159 INFO L290 TraceCheckUtils]: 19: Hoare triple {1856#false} assume { :end_inline_processEnvironment__wrappee__base } true; {1856#false} is VALID [2022-02-21 04:18:11,159 INFO L290 TraceCheckUtils]: 20: Hoare triple {1856#false} assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; {1856#false} is VALID [2022-02-21 04:18:11,159 INFO L290 TraceCheckUtils]: 21: Hoare triple {1856#false} assume { :end_inline_processEnvironment } true; {1856#false} is VALID [2022-02-21 04:18:11,159 INFO L290 TraceCheckUtils]: 22: Hoare triple {1856#false} assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret22#1, __utac_acc__Specification4_spec__1_#t~ret23#1, __utac_acc__Specification4_spec__1_~tmp~6#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~6#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; {1856#false} is VALID [2022-02-21 04:18:11,160 INFO L290 TraceCheckUtils]: 23: Hoare triple {1856#false} __utac_acc__Specification4_spec__1_#t~ret22#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~6#1 := __utac_acc__Specification4_spec__1_#t~ret22#1;havoc __utac_acc__Specification4_spec__1_#t~ret22#1; {1856#false} is VALID [2022-02-21 04:18:11,160 INFO L290 TraceCheckUtils]: 24: Hoare triple {1856#false} assume !(0 == __utac_acc__Specification4_spec__1_~tmp~6#1); {1856#false} is VALID [2022-02-21 04:18:11,160 INFO L290 TraceCheckUtils]: 25: Hoare triple {1856#false} assume { :end_inline___utac_acc__Specification4_spec__1 } true; {1856#false} is VALID [2022-02-21 04:18:11,160 INFO L290 TraceCheckUtils]: 26: Hoare triple {1856#false} assume { :end_inline_timeShift } true; {1856#false} is VALID [2022-02-21 04:18:11,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:18:11,161 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:11,161 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712687370] [2022-02-21 04:18:11,161 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712687370] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:11,161 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:11,161 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:18:11,162 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622165175] [2022-02-21 04:18:11,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:11,162 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:18:11,162 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:11,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-21 04:18:11,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-21 04:18:11,163 INFO L87 Difference]: Start difference. First operand 234 states and 296 transitions. cyclomatic complexity: 64 Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:11,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:11,962 INFO L93 Difference]: Finished difference Result 705 states and 881 transitions. [2022-02-21 04:18:11,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-21 04:18:11,962 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:11,980 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 27 edges. 27 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:18:11,981 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 705 states and 881 transitions. [2022-02-21 04:18:12,007 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 508 [2022-02-21 04:18:12,032 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 705 states to 705 states and 881 transitions. [2022-02-21 04:18:12,032 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 705 [2022-02-21 04:18:12,033 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 705 [2022-02-21 04:18:12,033 INFO L73 IsDeterministic]: Start isDeterministic. Operand 705 states and 881 transitions. [2022-02-21 04:18:12,033 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:12,034 INFO L681 BuchiCegarLoop]: Abstraction has 705 states and 881 transitions. [2022-02-21 04:18:12,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 705 states and 881 transitions. [2022-02-21 04:18:12,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 705 to 252. [2022-02-21 04:18:12,042 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:12,043 INFO L82 GeneralOperation]: Start isEquivalent. First operand 705 states and 881 transitions. Second operand has 252 states, 252 states have (on average 1.246031746031746) internal successors, (314), 251 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:12,044 INFO L74 IsIncluded]: Start isIncluded. First operand 705 states and 881 transitions. Second operand has 252 states, 252 states have (on average 1.246031746031746) internal successors, (314), 251 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:12,045 INFO L87 Difference]: Start difference. First operand 705 states and 881 transitions. Second operand has 252 states, 252 states have (on average 1.246031746031746) internal successors, (314), 251 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:12,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:12,066 INFO L93 Difference]: Finished difference Result 705 states and 881 transitions. [2022-02-21 04:18:12,066 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states and 881 transitions. [2022-02-21 04:18:12,068 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:12,068 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:12,069 INFO L74 IsIncluded]: Start isIncluded. First operand has 252 states, 252 states have (on average 1.246031746031746) internal successors, (314), 251 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 705 states and 881 transitions. [2022-02-21 04:18:12,069 INFO L87 Difference]: Start difference. First operand has 252 states, 252 states have (on average 1.246031746031746) internal successors, (314), 251 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 705 states and 881 transitions. [2022-02-21 04:18:12,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:12,092 INFO L93 Difference]: Finished difference Result 705 states and 881 transitions. [2022-02-21 04:18:12,092 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states and 881 transitions. [2022-02-21 04:18:12,093 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:12,093 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:12,094 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:12,094 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:12,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 252 states have (on average 1.246031746031746) internal successors, (314), 251 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:12,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 314 transitions. [2022-02-21 04:18:12,106 INFO L704 BuchiCegarLoop]: Abstraction has 252 states and 314 transitions. [2022-02-21 04:18:12,106 INFO L587 BuchiCegarLoop]: Abstraction has 252 states and 314 transitions. [2022-02-21 04:18:12,106 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2022-02-21 04:18:12,106 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 252 states and 314 transitions. [2022-02-21 04:18:12,107 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 174 [2022-02-21 04:18:12,108 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:12,108 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:12,108 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:12,108 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:12,109 INFO L791 eck$LassoCheckResult]: Stem: 2764#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(13, 12);call #Ultimate.allocInit(7, 13);call write~init~int(44, 13, 0, 1);call write~init~int(77, 13, 1, 1);call write~init~int(101, 13, 2, 1);call write~init~int(116, 13, 3, 1);call write~init~int(104, 13, 4, 1);call write~init~int(58, 13, 5, 1);call write~init~int(0, 13, 6, 1);call #Ultimate.allocInit(5, 14);call write~init~int(67, 14, 0, 1);call write~init~int(82, 14, 1, 1);call write~init~int(73, 14, 2, 1);call write~init~int(84, 14, 3, 1);call write~init~int(0, 14, 4, 1);call #Ultimate.allocInit(3, 15);call write~init~int(79, 15, 0, 1);call write~init~int(75, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(41, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 2667#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret30#1, main_~retValue_acc~10#1, main_~tmp~7#1;havoc main_~retValue_acc~10#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 2668#L500 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2600#L493 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; 2601#L508 main_#t~ret30#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret30#1;havoc main_#t~ret30#1; 2645#L595 assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 2750#L572 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2586#L64-2 [2022-02-21 04:18:12,109 INFO L793 eck$LassoCheckResult]: Loop: 2586#L64-2 assume !false; 2769#L65 assume test_~splverifierCounter~0#1 < 4; 2655#L66 test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 2656#L74 assume !(0 != test_~tmp~0#1); 2712#L74-2 test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 2754#L84 assume !(0 != test_~tmp___0~0#1); 2631#L84-2 test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 2632#L94 assume 0 != test_~tmp___2~0#1; 2689#L100-2 assume { :begin_inline_timeShift } true; 2606#L136 assume !(0 != ~pumpRunning~0); 2607#L136-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret9#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 2646#L194 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 2587#L168-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret20#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~2#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;havoc isHighWaterSensorDry_~retValue_acc~6#1; 2588#L455-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; 2617#L460-1 isHighWaterLevel_#t~ret20#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret20#1;havoc isHighWaterLevel_#t~ret20#1; 2640#L314-3 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~1#1 := 0; 2641#L314-5 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 2772#L320-1 processEnvironment__wrappee__highWaterSensor_#t~ret8#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret8#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1; 2771#L172-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2722#L160-2 assume { :end_inline_processEnvironment__wrappee__base } true; 2642#L168-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 2583#L194-1 assume { :end_inline_processEnvironment } true; 2584#L143-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret22#1, __utac_acc__Specification4_spec__1_#t~ret23#1, __utac_acc__Specification4_spec__1_~tmp~6#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~6#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~5#1;havoc getWaterLevel_~retValue_acc~5#1;getWaterLevel_~retValue_acc~5#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~5#1; 2637#L447 __utac_acc__Specification4_spec__1_#t~ret22#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~6#1 := __utac_acc__Specification4_spec__1_#t~ret22#1;havoc __utac_acc__Specification4_spec__1_#t~ret22#1; 2638#L354 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~6#1); 2595#L354-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 2585#L153 assume { :end_inline_timeShift } true; 2586#L64-2 [2022-02-21 04:18:12,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:12,110 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2022-02-21 04:18:12,110 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:12,111 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027863815] [2022-02-21 04:18:12,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:12,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:12,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:12,121 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:12,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:12,130 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:12,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:12,131 INFO L85 PathProgramCache]: Analyzing trace with hash -1815368121, now seen corresponding path program 1 times [2022-02-21 04:18:12,131 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:12,131 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735234728] [2022-02-21 04:18:12,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:12,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:12,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:12,138 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:12,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:12,144 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:12,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:12,145 INFO L85 PathProgramCache]: Analyzing trace with hash -1440080381, now seen corresponding path program 1 times [2022-02-21 04:18:12,145 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:12,145 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790796175] [2022-02-21 04:18:12,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:12,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:12,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:12,157 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:12,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:12,169 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:15,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:18:15 BoogieIcfgContainer [2022-02-21 04:18:15,061 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:18:15,061 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:18:15,061 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:18:15,062 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:18:15,062 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:09" (3/4) ... [2022-02-21 04:18:15,064 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:18:15,102 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:18:15,103 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:18:15,104 INFO L158 Benchmark]: Toolchain (without parser) took 7065.87ms. Allocated memory was 88.1MB in the beginning and 157.3MB in the end (delta: 69.2MB). Free memory was 52.5MB in the beginning and 113.6MB in the end (delta: -61.1MB). Peak memory consumption was 8.1MB. Max. memory is 16.1GB. [2022-02-21 04:18:15,104 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 88.1MB. Free memory was 58.3MB in the beginning and 58.3MB in the end (delta: 24.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:18:15,105 INFO L158 Benchmark]: CACSL2BoogieTranslator took 447.66ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 52.2MB in the beginning and 70.8MB in the end (delta: -18.6MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. [2022-02-21 04:18:15,105 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.97ms. Allocated memory is still 107.0MB. Free memory was 70.8MB in the beginning and 66.1MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:18:15,106 INFO L158 Benchmark]: Boogie Preprocessor took 55.11ms. Allocated memory is still 107.0MB. Free memory was 66.1MB in the beginning and 63.4MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:18:15,106 INFO L158 Benchmark]: RCFGBuilder took 603.18ms. Allocated memory is still 107.0MB. Free memory was 63.1MB in the beginning and 60.9MB in the end (delta: 2.3MB). Peak memory consumption was 11.4MB. Max. memory is 16.1GB. [2022-02-21 04:18:15,106 INFO L158 Benchmark]: BuchiAutomizer took 5843.73ms. Allocated memory was 107.0MB in the beginning and 157.3MB in the end (delta: 50.3MB). Free memory was 60.9MB in the beginning and 116.7MB in the end (delta: -55.8MB). Peak memory consumption was 66.4MB. Max. memory is 16.1GB. [2022-02-21 04:18:15,107 INFO L158 Benchmark]: Witness Printer took 41.77ms. Allocated memory is still 157.3MB. Free memory was 115.7MB in the beginning and 113.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:18:15,109 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 88.1MB. Free memory was 58.3MB in the beginning and 58.3MB in the end (delta: 24.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 447.66ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 52.2MB in the beginning and 70.8MB in the end (delta: -18.6MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.97ms. Allocated memory is still 107.0MB. Free memory was 70.8MB in the beginning and 66.1MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.11ms. Allocated memory is still 107.0MB. Free memory was 66.1MB in the beginning and 63.4MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 603.18ms. Allocated memory is still 107.0MB. Free memory was 63.1MB in the beginning and 60.9MB in the end (delta: 2.3MB). Peak memory consumption was 11.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 5843.73ms. Allocated memory was 107.0MB in the beginning and 157.3MB in the end (delta: 50.3MB). Free memory was 60.9MB in the beginning and 116.7MB in the end (delta: -55.8MB). Peak memory consumption was 66.4MB. Max. memory is 16.1GB. * Witness Printer took 41.77ms. Allocated memory is still 157.3MB. Free memory was 115.7MB in the beginning and 113.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 252 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.7s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 3.6s. Construction of modules took 0.1s. Büchi inclusion checks took 1.5s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 453 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 252 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1822 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1822 mSDsluCounter, 1695 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 882 mSDsCounter, 50 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 129 IncrementalHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 50 mSolverCounterUnsat, 813 mSDtfsCounter, 129 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 64]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@584bd460=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@791bb89b=0, tmp___0=0, head=0, pumpRunning=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@32b728c7=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4f8b49af=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6ade99c1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@92ab290=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5f528afa=29, methaneLevelCritical=0, retValue_acc=1, retValue_acc=1, tmp=1, retValue_acc=0, \result=1, \result=1, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@eb66c04=0, tmp=1, tmp___2=29, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@696168bb=0, cleanupTimeShifts=4, \result=0, tmp=0, head=0, \result=1, tmp___1=0, retValue_acc=1, NULL=0, waterLevel=1, systemActive=1, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@41f349fa=0, retValue_acc=0, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 64]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L128] int pumpRunning = 0; [L129] int systemActive = 1; [L372] int waterLevel = 1; [L373] int methaneLevelCritical = 0; [L513] int cleanupTimeShifts = 4; [L778] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L586] int retValue_acc ; [L587] int tmp ; [L591] FCALL select_helpers() [L592] FCALL select_features() [L593] CALL, EXPR valid_product() [L504] int retValue_acc ; [L507] retValue_acc = 1 [L508] return (retValue_acc); [L593] RET, EXPR valid_product() [L593] tmp = valid_product() [L595] COND TRUE \read(tmp) [L597] FCALL setup() [L598] CALL runTest() [L580] CALL test() [L55] int splverifierCounter ; [L56] int tmp ; [L57] int tmp___0 ; [L58] int tmp___1 ; [L59] int tmp___2 ; [L62] splverifierCounter = 0 Loop: [L64] COND TRUE 1 [L66] COND TRUE splverifierCounter < 4 [L72] tmp = __VERIFIER_nondet_int() [L74] COND FALSE !(\read(tmp)) [L82] tmp___0 = __VERIFIER_nondet_int() [L84] COND FALSE !(\read(tmp___0)) [L92] tmp___2 = __VERIFIER_nondet_int() [L94] COND TRUE \read(tmp___2) [L107] CALL timeShift() [L136] COND FALSE !(\read(pumpRunning)) [L143] COND TRUE \read(systemActive) [L145] CALL processEnvironment() [L191] int tmp ; [L194] COND FALSE !(\read(pumpRunning)) [L209] CALL processEnvironment__wrappee__highWaterSensor() [L165] int tmp ; [L168] COND TRUE ! pumpRunning [L170] CALL, EXPR isHighWaterLevel() [L306] int retValue_acc ; [L307] int tmp ; [L308] int tmp___0 ; [L312] CALL, EXPR isHighWaterSensorDry() [L452] int retValue_acc ; [L455] COND TRUE waterLevel < 2 [L456] retValue_acc = 1 [L457] return (retValue_acc); [L312] RET, EXPR isHighWaterSensorDry() [L312] tmp = isHighWaterSensorDry() [L314] COND TRUE \read(tmp) [L315] tmp___0 = 0 [L319] retValue_acc = tmp___0 [L320] return (retValue_acc); [L170] RET, EXPR isHighWaterLevel() [L170] tmp = isHighWaterLevel() [L172] COND FALSE !(\read(tmp)) [L178] FCALL processEnvironment__wrappee__base() [L209] RET processEnvironment__wrappee__highWaterSensor() [L145] RET processEnvironment() [L151] CALL __utac_acc__Specification4_spec__1() [L347] int tmp ; [L348] int tmp___0 ; [L352] CALL, EXPR getWaterLevel() [L443] int retValue_acc ; [L446] retValue_acc = waterLevel [L447] return (retValue_acc); [L352] RET, EXPR getWaterLevel() [L352] tmp = getWaterLevel() [L354] COND FALSE !(tmp == 0) [L151] RET __utac_acc__Specification4_spec__1() [L107] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:18:15,150 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)