./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product54.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_spec5_product54.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 88f09ec5af0f641c9edfe2f7047937341e46c7f8baabeed0fd38f069cd3b5278 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:18:53,978 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:18:53,980 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:18:54,012 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:18:54,012 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:18:54,013 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:18:54,014 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:18:54,016 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:18:54,017 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:18:54,017 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:18:54,018 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:18:54,019 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:18:54,020 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:18:54,020 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:18:54,021 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:18:54,022 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:18:54,023 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:18:54,023 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:18:54,025 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:18:54,026 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:18:54,027 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:18:54,028 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:18:54,029 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:18:54,030 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:18:54,032 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:18:54,032 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:18:54,032 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:18:54,033 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:18:54,033 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:18:54,034 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:18:54,034 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:18:54,035 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:18:54,036 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:18:54,036 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:18:54,037 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:18:54,038 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:18:54,038 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:18:54,038 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:18:54,039 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:18:54,039 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:18:54,040 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:18:54,041 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:18:54,063 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:18:54,064 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:18:54,065 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:18:54,065 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:18:54,067 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:18:54,067 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:18:54,067 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:18:54,067 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:18:54,067 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:18:54,068 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:18:54,068 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:18:54,069 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:18:54,069 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:18:54,069 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:18:54,069 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:18:54,069 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:18:54,070 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:18:54,070 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:18:54,070 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:18:54,070 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:18:54,070 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:18:54,070 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:18:54,071 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:18:54,071 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:18:54,071 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:18:54,071 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:18:54,071 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:18:54,072 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:18:54,072 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:18:54,072 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:18:54,072 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:18:54,073 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:18:54,073 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 88f09ec5af0f641c9edfe2f7047937341e46c7f8baabeed0fd38f069cd3b5278 [2022-02-21 04:18:54,304 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:18:54,323 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:18:54,325 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:18:54,326 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:18:54,326 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:18:54,327 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product54.cil.c [2022-02-21 04:18:54,390 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27f8812be/35bf817e94ba4b3194229335ba91fe21/FLAG607c22c81 [2022-02-21 04:18:54,784 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:18:54,785 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product54.cil.c [2022-02-21 04:18:54,800 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27f8812be/35bf817e94ba4b3194229335ba91fe21/FLAG607c22c81 [2022-02-21 04:18:55,171 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27f8812be/35bf817e94ba4b3194229335ba91fe21 [2022-02-21 04:18:55,174 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:18:55,175 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:18:55,180 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:18:55,180 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:18:55,183 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:18:55,184 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:18:55" (1/1) ... [2022-02-21 04:18:55,185 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24613313 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:55, skipping insertion in model container [2022-02-21 04:18:55,185 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:18:55" (1/1) ... [2022-02-21 04:18:55,191 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:18:55,237 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:18:55,396 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_spec5_product54.cil.c[3971,3984] [2022-02-21 04:18:55,513 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:18:55,524 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:18:55,551 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_spec5_product54.cil.c[3971,3984] [2022-02-21 04:18:55,595 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:18:55,613 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:18:55,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:55 WrapperNode [2022-02-21 04:18:55,614 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:18:55,615 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:18:55,615 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:18:55,615 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:18:55,627 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:55" (1/1) ... [2022-02-21 04:18:55,640 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:55" (1/1) ... [2022-02-21 04:18:55,713 INFO L137 Inliner]: procedures = 59, calls = 162, calls flagged for inlining = 59, calls inlined = 145, statements flattened = 1044 [2022-02-21 04:18:55,713 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:18:55,714 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:18:55,714 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:18:55,714 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:18:55,721 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:55" (1/1) ... [2022-02-21 04:18:55,721 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:55" (1/1) ... [2022-02-21 04:18:55,742 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:55" (1/1) ... [2022-02-21 04:18:55,750 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:55" (1/1) ... [2022-02-21 04:18:55,777 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:55" (1/1) ... [2022-02-21 04:18:55,785 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:55" (1/1) ... [2022-02-21 04:18:55,798 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:55" (1/1) ... [2022-02-21 04:18:55,802 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:18:55,808 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:18:55,808 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:18:55,808 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:18:55,809 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:55" (1/1) ... [2022-02-21 04:18:55,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:18:55,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:18:55,871 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 04:18:55,876 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 04:18:55,897 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:18:55,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:18:55,898 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:18:55,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:18:55,979 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:18:55,980 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:18:56,704 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:18:56,714 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:18:56,714 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:18:56,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:56 BoogieIcfgContainer [2022-02-21 04:18:56,716 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:18:56,717 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:18:56,718 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:18:56,721 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:18:56,721 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:56,721 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:18:55" (1/3) ... [2022-02-21 04:18:56,722 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7010b232 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:18:56, skipping insertion in model container [2022-02-21 04:18:56,722 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:56,723 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:55" (2/3) ... [2022-02-21 04:18:56,723 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7010b232 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:18:56, skipping insertion in model container [2022-02-21 04:18:56,723 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:56,723 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:56" (3/3) ... [2022-02-21 04:18:56,724 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product54.cil.c [2022-02-21 04:18:56,772 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:18:56,772 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:18:56,772 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:18:56,772 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:18:56,772 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:18:56,773 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:18:56,773 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:18:56,773 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:18:56,794 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 281 states, 280 states have (on average 1.3678571428571429) internal successors, (383), 280 states have internal predecessors, (383), 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 04:18:56,857 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 183 [2022-02-21 04:18:56,857 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:56,857 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:56,864 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:56,864 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] [2022-02-21 04:18:56,865 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:18:56,867 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 281 states, 280 states have (on average 1.3678571428571429) internal successors, (383), 280 states have internal predecessors, (383), 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 04:18:56,887 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 183 [2022-02-21 04:18:56,887 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:56,887 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:56,888 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:56,888 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] [2022-02-21 04:18:56,895 INFO L791 eck$LassoCheckResult]: Stem: 267#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(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 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);~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 179#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret12#1, main_~retValue_acc~4#1, main_~tmp~1#1;havoc main_~retValue_acc~4#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; 237#L650true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 36#L643true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 167#L658true main_#t~ret12#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret12#1;havoc main_#t~ret12#1; 210#L310true assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; 137#L282true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 100#L59true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_~splverifierCounter~0#1, test_~tmp~7#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~7#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 176#L571-2true [2022-02-21 04:18:56,900 INFO L793 eck$LassoCheckResult]: Loop: 176#L571-2true assume !false; 103#L572true assume test_~splverifierCounter~0#1 < 4; 53#L573true test_~tmp~7#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 278#L581true assume !(0 != test_~tmp~7#1); 263#L581-2true test_~tmp___0~3#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 110#L591true assume !(0 != test_~tmp___0~3#1); 112#L591-2true test_~tmp___2~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 196#L601true assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 78#L609true assume 0 != test_~tmp___1~0#1; 279#L609-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret4#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~6#1;havoc isPumpRunning_~retValue_acc~6#1;isPumpRunning_~retValue_acc~6#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~6#1; 57#L474true __utac_acc__Specification5_spec__2_#t~ret4#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret4#1;havoc __utac_acc__Specification5_spec__2_#t~ret4#1; 16#L69true assume { :end_inline___utac_acc__Specification5_spec__2 } true; 214#L337true assume !(0 != ~pumpRunning~0); 119#L337-2true assume !(0 != ~systemActive~0); 106#L344-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret5#1, __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~0#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 85#L184true __utac_acc__Specification5_spec__3_#t~ret5#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0#1 := __utac_acc__Specification5_spec__3_#t~ret5#1;havoc __utac_acc__Specification5_spec__3_#t~ret5#1; 149#L80true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0#1); 265#L80-1true assume { :end_inline___utac_acc__Specification5_spec__3 } true; 195#L354true assume { :end_inline_timeShift } true; 176#L571-2true [2022-02-21 04:18:56,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:56,906 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2022-02-21 04:18:56,914 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:56,914 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560352704] [2022-02-21 04:18:56,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:56,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:57,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:57,052 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:57,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:57,129 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:57,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:57,132 INFO L85 PathProgramCache]: Analyzing trace with hash 560089036, now seen corresponding path program 1 times [2022-02-21 04:18:57,132 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:57,134 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152876461] [2022-02-21 04:18:57,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:57,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:57,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:57,164 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:57,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:57,172 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:57,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:57,174 INFO L85 PathProgramCache]: Analyzing trace with hash 1989837379, now seen corresponding path program 1 times [2022-02-21 04:18:57,174 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:57,174 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940973381] [2022-02-21 04:18:57,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:57,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:57,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:57,337 INFO L290 TraceCheckUtils]: 0: Hoare triple {289#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(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 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);~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; {291#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:57,339 INFO L290 TraceCheckUtils]: 1: Hoare triple {291#(= 1 ~systemActive~0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret12#1, main_~retValue_acc~4#1, main_~tmp~1#1;havoc main_~retValue_acc~4#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; {291#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:57,339 INFO L290 TraceCheckUtils]: 2: Hoare triple {291#(= 1 ~systemActive~0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {291#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:57,340 INFO L290 TraceCheckUtils]: 3: Hoare triple {291#(= 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~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; {292#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} is VALID [2022-02-21 04:18:57,340 INFO L290 TraceCheckUtils]: 4: Hoare triple {292#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} main_#t~ret12#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret12#1;havoc main_#t~ret12#1; {293#(= |ULTIMATE.start_main_~tmp~1#1| ~systemActive~0)} is VALID [2022-02-21 04:18:57,341 INFO L290 TraceCheckUtils]: 5: Hoare triple {293#(= |ULTIMATE.start_main_~tmp~1#1| ~systemActive~0)} assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; {294#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:57,341 INFO L290 TraceCheckUtils]: 6: Hoare triple {294#(not (= 0 ~systemActive~0))} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; {294#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:57,342 INFO L290 TraceCheckUtils]: 7: Hoare triple {294#(not (= 0 ~systemActive~0))} assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_~splverifierCounter~0#1, test_~tmp~7#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~7#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {294#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:57,342 INFO L290 TraceCheckUtils]: 8: Hoare triple {294#(not (= 0 ~systemActive~0))} assume !false; {294#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:57,343 INFO L290 TraceCheckUtils]: 9: Hoare triple {294#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0#1 < 4; {294#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:57,344 INFO L290 TraceCheckUtils]: 10: Hoare triple {294#(not (= 0 ~systemActive~0))} test_~tmp~7#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; {294#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:57,345 INFO L290 TraceCheckUtils]: 11: Hoare triple {294#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~7#1); {294#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:57,345 INFO L290 TraceCheckUtils]: 12: Hoare triple {294#(not (= 0 ~systemActive~0))} test_~tmp___0~3#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; {294#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:57,346 INFO L290 TraceCheckUtils]: 13: Hoare triple {294#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~3#1); {294#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:57,346 INFO L290 TraceCheckUtils]: 14: Hoare triple {294#(not (= 0 ~systemActive~0))} test_~tmp___2~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; {294#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:57,347 INFO L290 TraceCheckUtils]: 15: Hoare triple {294#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; {294#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:57,347 INFO L290 TraceCheckUtils]: 16: Hoare triple {294#(not (= 0 ~systemActive~0))} assume 0 != test_~tmp___1~0#1; {294#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:57,348 INFO L290 TraceCheckUtils]: 17: Hoare triple {294#(not (= 0 ~systemActive~0))} assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret4#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~6#1;havoc isPumpRunning_~retValue_acc~6#1;isPumpRunning_~retValue_acc~6#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~6#1; {294#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:57,348 INFO L290 TraceCheckUtils]: 18: Hoare triple {294#(not (= 0 ~systemActive~0))} __utac_acc__Specification5_spec__2_#t~ret4#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret4#1;havoc __utac_acc__Specification5_spec__2_#t~ret4#1; {294#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:57,349 INFO L290 TraceCheckUtils]: 19: Hoare triple {294#(not (= 0 ~systemActive~0))} assume { :end_inline___utac_acc__Specification5_spec__2 } true; {294#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:57,350 INFO L290 TraceCheckUtils]: 20: Hoare triple {294#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {294#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:57,350 INFO L290 TraceCheckUtils]: 21: Hoare triple {294#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {290#false} is VALID [2022-02-21 04:18:57,350 INFO L290 TraceCheckUtils]: 22: Hoare triple {290#false} assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret5#1, __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~0#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; {290#false} is VALID [2022-02-21 04:18:57,351 INFO L290 TraceCheckUtils]: 23: Hoare triple {290#false} __utac_acc__Specification5_spec__3_#t~ret5#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0#1 := __utac_acc__Specification5_spec__3_#t~ret5#1;havoc __utac_acc__Specification5_spec__3_#t~ret5#1; {290#false} is VALID [2022-02-21 04:18:57,352 INFO L290 TraceCheckUtils]: 24: Hoare triple {290#false} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0#1); {290#false} is VALID [2022-02-21 04:18:57,352 INFO L290 TraceCheckUtils]: 25: Hoare triple {290#false} assume { :end_inline___utac_acc__Specification5_spec__3 } true; {290#false} is VALID [2022-02-21 04:18:57,352 INFO L290 TraceCheckUtils]: 26: Hoare triple {290#false} assume { :end_inline_timeShift } true; {290#false} is VALID [2022-02-21 04:18:57,354 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 04:18:57,354 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:57,355 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940973381] [2022-02-21 04:18:57,355 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940973381] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:57,355 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:57,356 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:18:57,356 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735180567] [2022-02-21 04:18:57,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:57,525 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:57,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-21 04:18:57,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-21 04:18:57,556 INFO L87 Difference]: Start difference. First operand has 281 states, 280 states have (on average 1.3678571428571429) internal successors, (383), 280 states have internal predecessors, (383), 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 4.5) 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 04:18:58,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:58,199 INFO L93 Difference]: Finished difference Result 278 states and 369 transitions. [2022-02-21 04:18:58,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-21 04:18:58,201 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 4.5) 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 04:18:58,227 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 04:18:58,231 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 278 states and 369 transitions. [2022-02-21 04:18:58,250 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 179 [2022-02-21 04:18:58,264 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 278 states to 268 states and 359 transitions. [2022-02-21 04:18:58,265 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 268 [2022-02-21 04:18:58,266 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 268 [2022-02-21 04:18:58,267 INFO L73 IsDeterministic]: Start isDeterministic. Operand 268 states and 359 transitions. [2022-02-21 04:18:58,270 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:58,270 INFO L681 BuchiCegarLoop]: Abstraction has 268 states and 359 transitions. [2022-02-21 04:18:58,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states and 359 transitions. [2022-02-21 04:18:58,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 268. [2022-02-21 04:18:58,316 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:58,319 INFO L82 GeneralOperation]: Start isEquivalent. First operand 268 states and 359 transitions. Second operand has 268 states, 268 states have (on average 1.3395522388059702) internal successors, (359), 267 states have internal predecessors, (359), 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 04:18:58,323 INFO L74 IsIncluded]: Start isIncluded. First operand 268 states and 359 transitions. Second operand has 268 states, 268 states have (on average 1.3395522388059702) internal successors, (359), 267 states have internal predecessors, (359), 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 04:18:58,324 INFO L87 Difference]: Start difference. First operand 268 states and 359 transitions. Second operand has 268 states, 268 states have (on average 1.3395522388059702) internal successors, (359), 267 states have internal predecessors, (359), 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 04:18:58,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:58,339 INFO L93 Difference]: Finished difference Result 268 states and 359 transitions. [2022-02-21 04:18:58,340 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 359 transitions. [2022-02-21 04:18:58,344 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:58,344 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:58,345 INFO L74 IsIncluded]: Start isIncluded. First operand has 268 states, 268 states have (on average 1.3395522388059702) internal successors, (359), 267 states have internal predecessors, (359), 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 268 states and 359 transitions. [2022-02-21 04:18:58,345 INFO L87 Difference]: Start difference. First operand has 268 states, 268 states have (on average 1.3395522388059702) internal successors, (359), 267 states have internal predecessors, (359), 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 268 states and 359 transitions. [2022-02-21 04:18:58,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:58,360 INFO L93 Difference]: Finished difference Result 268 states and 359 transitions. [2022-02-21 04:18:58,360 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 359 transitions. [2022-02-21 04:18:58,364 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:58,364 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:58,364 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:58,365 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:58,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 268 states have (on average 1.3395522388059702) internal successors, (359), 267 states have internal predecessors, (359), 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 04:18:58,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 359 transitions. [2022-02-21 04:18:58,374 INFO L704 BuchiCegarLoop]: Abstraction has 268 states and 359 transitions. [2022-02-21 04:18:58,374 INFO L587 BuchiCegarLoop]: Abstraction has 268 states and 359 transitions. [2022-02-21 04:18:58,374 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:18:58,375 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 268 states and 359 transitions. [2022-02-21 04:18:58,377 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 179 [2022-02-21 04:18:58,378 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:58,378 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:58,380 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:58,380 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] [2022-02-21 04:18:58,380 INFO L791 eck$LassoCheckResult]: Stem: 842#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(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 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);~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 817#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret12#1, main_~retValue_acc~4#1, main_~tmp~1#1;havoc main_~retValue_acc~4#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; 818#L650 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 639#L643 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 640#L658 main_#t~ret12#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret12#1;havoc main_#t~ret12#1; 812#L310 assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; 786#L282 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 744#L59 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_~splverifierCounter~0#1, test_~tmp~7#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~7#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 745#L571-2 [2022-02-21 04:18:58,380 INFO L793 eck$LassoCheckResult]: Loop: 745#L571-2 assume !false; 746#L572 assume test_~splverifierCounter~0#1 < 4; 670#L573 test_~tmp~7#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 671#L581 assume !(0 != test_~tmp~7#1); 829#L581-2 test_~tmp___0~3#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 756#L591 assume !(0 != test_~tmp___0~3#1); 757#L591-2 test_~tmp___2~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 759#L601 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 713#L609 assume 0 != test_~tmp___1~0#1; 714#L609-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret4#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~6#1;havoc isPumpRunning_~retValue_acc~6#1;isPumpRunning_~retValue_acc~6#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~6#1; 676#L474 __utac_acc__Specification5_spec__2_#t~ret4#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret4#1;havoc __utac_acc__Specification5_spec__2_#t~ret4#1; 604#L69 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 605#L337 assume !(0 != ~pumpRunning~0); 768#L337-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret15#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1; 629#L421 assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret16#1, isMethaneAlarm_~retValue_acc~5#1;havoc isMethaneAlarm_~retValue_acc~5#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 630#L152 isMethaneAlarm_#t~ret16#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~5#1 := isMethaneAlarm_#t~ret16#1;havoc isMethaneAlarm_#t~ret16#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~5#1; 638#L465 processEnvironment_#t~ret15#1 := isMethaneAlarm_#res#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~4#1 := processEnvironment_#t~ret15#1;havoc processEnvironment_#t~ret15#1; 780#L425 assume 0 != processEnvironment_~tmp~4#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 790#L455 assume { :end_inline_deactivatePump } true; 791#L421-1 assume { :end_inline_processEnvironment } true; 750#L344-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret5#1, __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~0#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 723#L184 __utac_acc__Specification5_spec__3_#t~ret5#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0#1 := __utac_acc__Specification5_spec__3_#t~ret5#1;havoc __utac_acc__Specification5_spec__3_#t~ret5#1; 724#L80 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0#1); 644#L80-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 825#L354 assume { :end_inline_timeShift } true; 745#L571-2 [2022-02-21 04:18:58,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:58,382 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2022-02-21 04:18:58,382 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:58,382 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133384595] [2022-02-21 04:18:58,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:58,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:58,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:58,422 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:58,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:58,434 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:58,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:58,435 INFO L85 PathProgramCache]: Analyzing trace with hash 1262008533, now seen corresponding path program 1 times [2022-02-21 04:18:58,435 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:58,435 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601636408] [2022-02-21 04:18:58,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:58,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:58,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:58,453 INFO L290 TraceCheckUtils]: 0: Hoare triple {1386#true} assume !false; {1386#true} is VALID [2022-02-21 04:18:58,453 INFO L290 TraceCheckUtils]: 1: Hoare triple {1386#true} assume test_~splverifierCounter~0#1 < 4; {1386#true} is VALID [2022-02-21 04:18:58,453 INFO L290 TraceCheckUtils]: 2: Hoare triple {1386#true} test_~tmp~7#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; {1386#true} is VALID [2022-02-21 04:18:58,453 INFO L290 TraceCheckUtils]: 3: Hoare triple {1386#true} assume !(0 != test_~tmp~7#1); {1386#true} is VALID [2022-02-21 04:18:58,454 INFO L290 TraceCheckUtils]: 4: Hoare triple {1386#true} test_~tmp___0~3#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; {1386#true} is VALID [2022-02-21 04:18:58,454 INFO L290 TraceCheckUtils]: 5: Hoare triple {1386#true} assume !(0 != test_~tmp___0~3#1); {1386#true} is VALID [2022-02-21 04:18:58,454 INFO L290 TraceCheckUtils]: 6: Hoare triple {1386#true} test_~tmp___2~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; {1386#true} is VALID [2022-02-21 04:18:58,455 INFO L290 TraceCheckUtils]: 7: Hoare triple {1386#true} assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; {1386#true} is VALID [2022-02-21 04:18:58,455 INFO L290 TraceCheckUtils]: 8: Hoare triple {1386#true} assume 0 != test_~tmp___1~0#1; {1386#true} is VALID [2022-02-21 04:18:58,455 INFO L290 TraceCheckUtils]: 9: Hoare triple {1386#true} assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret4#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~6#1;havoc isPumpRunning_~retValue_acc~6#1;isPumpRunning_~retValue_acc~6#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~6#1; {1386#true} is VALID [2022-02-21 04:18:58,455 INFO L290 TraceCheckUtils]: 10: Hoare triple {1386#true} __utac_acc__Specification5_spec__2_#t~ret4#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret4#1;havoc __utac_acc__Specification5_spec__2_#t~ret4#1; {1386#true} is VALID [2022-02-21 04:18:58,456 INFO L290 TraceCheckUtils]: 11: Hoare triple {1386#true} assume { :end_inline___utac_acc__Specification5_spec__2 } true; {1386#true} is VALID [2022-02-21 04:18:58,456 INFO L290 TraceCheckUtils]: 12: Hoare triple {1386#true} assume !(0 != ~pumpRunning~0); {1388#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:18:58,457 INFO L290 TraceCheckUtils]: 13: Hoare triple {1388#(= ~pumpRunning~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret15#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1; {1388#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:18:58,457 INFO L290 TraceCheckUtils]: 14: Hoare triple {1388#(= ~pumpRunning~0 0)} assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret16#1, isMethaneAlarm_~retValue_acc~5#1;havoc isMethaneAlarm_~retValue_acc~5#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; {1387#false} is VALID [2022-02-21 04:18:58,458 INFO L290 TraceCheckUtils]: 15: Hoare triple {1387#false} isMethaneAlarm_#t~ret16#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~5#1 := isMethaneAlarm_#t~ret16#1;havoc isMethaneAlarm_#t~ret16#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~5#1; {1387#false} is VALID [2022-02-21 04:18:58,458 INFO L290 TraceCheckUtils]: 16: Hoare triple {1387#false} processEnvironment_#t~ret15#1 := isMethaneAlarm_#res#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~4#1 := processEnvironment_#t~ret15#1;havoc processEnvironment_#t~ret15#1; {1387#false} is VALID [2022-02-21 04:18:58,459 INFO L290 TraceCheckUtils]: 17: Hoare triple {1387#false} assume 0 != processEnvironment_~tmp~4#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; {1387#false} is VALID [2022-02-21 04:18:58,459 INFO L290 TraceCheckUtils]: 18: Hoare triple {1387#false} assume { :end_inline_deactivatePump } true; {1387#false} is VALID [2022-02-21 04:18:58,459 INFO L290 TraceCheckUtils]: 19: Hoare triple {1387#false} assume { :end_inline_processEnvironment } true; {1387#false} is VALID [2022-02-21 04:18:58,460 INFO L290 TraceCheckUtils]: 20: Hoare triple {1387#false} assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret5#1, __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~0#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; {1387#false} is VALID [2022-02-21 04:18:58,460 INFO L290 TraceCheckUtils]: 21: Hoare triple {1387#false} __utac_acc__Specification5_spec__3_#t~ret5#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0#1 := __utac_acc__Specification5_spec__3_#t~ret5#1;havoc __utac_acc__Specification5_spec__3_#t~ret5#1; {1387#false} is VALID [2022-02-21 04:18:58,460 INFO L290 TraceCheckUtils]: 22: Hoare triple {1387#false} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0#1); {1387#false} is VALID [2022-02-21 04:18:58,463 INFO L290 TraceCheckUtils]: 23: Hoare triple {1387#false} assume { :end_inline___utac_acc__Specification5_spec__3 } true; {1387#false} is VALID [2022-02-21 04:18:58,463 INFO L290 TraceCheckUtils]: 24: Hoare triple {1387#false} assume { :end_inline_timeShift } true; {1387#false} is VALID [2022-02-21 04:18:58,464 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 04:18:58,472 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:58,473 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601636408] [2022-02-21 04:18:58,473 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601636408] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:58,473 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:58,473 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:18:58,473 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457115797] [2022-02-21 04:18:58,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:58,474 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:18:58,474 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:58,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:18:58,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:18:58,477 INFO L87 Difference]: Start difference. First operand 268 states and 359 transitions. cyclomatic complexity: 93 Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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 04:18:58,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:58,777 INFO L93 Difference]: Finished difference Result 288 states and 365 transitions. [2022-02-21 04:18:58,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:18:58,777 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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 04:18:58,798 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 25 edges. 25 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:18:58,798 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 288 states and 365 transitions. [2022-02-21 04:18:58,806 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 198 [2022-02-21 04:18:58,813 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 288 states to 288 states and 365 transitions. [2022-02-21 04:18:58,813 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 288 [2022-02-21 04:18:58,814 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 288 [2022-02-21 04:18:58,814 INFO L73 IsDeterministic]: Start isDeterministic. Operand 288 states and 365 transitions. [2022-02-21 04:18:58,814 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:58,814 INFO L681 BuchiCegarLoop]: Abstraction has 288 states and 365 transitions. [2022-02-21 04:18:58,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states and 365 transitions. [2022-02-21 04:18:58,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 288. [2022-02-21 04:18:58,821 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:58,822 INFO L82 GeneralOperation]: Start isEquivalent. First operand 288 states and 365 transitions. Second operand has 288 states, 288 states have (on average 1.2673611111111112) internal successors, (365), 287 states have internal predecessors, (365), 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 04:18:58,822 INFO L74 IsIncluded]: Start isIncluded. First operand 288 states and 365 transitions. Second operand has 288 states, 288 states have (on average 1.2673611111111112) internal successors, (365), 287 states have internal predecessors, (365), 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 04:18:58,823 INFO L87 Difference]: Start difference. First operand 288 states and 365 transitions. Second operand has 288 states, 288 states have (on average 1.2673611111111112) internal successors, (365), 287 states have internal predecessors, (365), 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 04:18:58,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:58,830 INFO L93 Difference]: Finished difference Result 288 states and 365 transitions. [2022-02-21 04:18:58,831 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 365 transitions. [2022-02-21 04:18:58,831 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:58,831 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:58,832 INFO L74 IsIncluded]: Start isIncluded. First operand has 288 states, 288 states have (on average 1.2673611111111112) internal successors, (365), 287 states have internal predecessors, (365), 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 288 states and 365 transitions. [2022-02-21 04:18:58,833 INFO L87 Difference]: Start difference. First operand has 288 states, 288 states have (on average 1.2673611111111112) internal successors, (365), 287 states have internal predecessors, (365), 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 288 states and 365 transitions. [2022-02-21 04:18:58,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:58,841 INFO L93 Difference]: Finished difference Result 288 states and 365 transitions. [2022-02-21 04:18:58,841 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 365 transitions. [2022-02-21 04:18:58,841 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:58,841 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:58,841 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:58,842 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:58,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 288 states have (on average 1.2673611111111112) internal successors, (365), 287 states have internal predecessors, (365), 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 04:18:58,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 365 transitions. [2022-02-21 04:18:58,849 INFO L704 BuchiCegarLoop]: Abstraction has 288 states and 365 transitions. [2022-02-21 04:18:58,850 INFO L587 BuchiCegarLoop]: Abstraction has 288 states and 365 transitions. [2022-02-21 04:18:58,850 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:18:58,850 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 288 states and 365 transitions. [2022-02-21 04:18:58,851 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 198 [2022-02-21 04:18:58,851 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:58,852 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:58,852 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:58,852 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, 1, 1, 1, 1, 1] [2022-02-21 04:18:58,853 INFO L791 eck$LassoCheckResult]: Stem: 1901#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(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 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);~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 1876#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret12#1, main_~retValue_acc~4#1, main_~tmp~1#1;havoc main_~retValue_acc~4#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; 1877#L650 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1727#L643 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 1728#L658 main_#t~ret12#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret12#1;havoc main_#t~ret12#1; 1873#L310 assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; 1851#L282 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 1814#L59 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_~splverifierCounter~0#1, test_~tmp~7#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~7#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1815#L571-2 [2022-02-21 04:18:58,853 INFO L793 eck$LassoCheckResult]: Loop: 1815#L571-2 assume !false; 1817#L572 assume test_~splverifierCounter~0#1 < 4; 1818#L573 test_~tmp~7#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 1963#L581 assume !(0 != test_~tmp~7#1); 1961#L581-2 test_~tmp___0~3#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 1826#L591 assume !(0 != test_~tmp___0~3#1); 1828#L591-2 test_~tmp___2~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 1833#L601 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 1884#L557 assume { :end_inline_startSystem } true; 1906#L609-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret4#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~6#1;havoc isPumpRunning_~retValue_acc~6#1;isPumpRunning_~retValue_acc~6#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~6#1; 1759#L474 __utac_acc__Specification5_spec__2_#t~ret4#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret4#1;havoc __utac_acc__Specification5_spec__2_#t~ret4#1; 1695#L69 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 1696#L337 assume !(0 != ~pumpRunning~0); 1836#L337-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret15#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1; 1719#L421 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret14#1, processEnvironment__wrappee__lowWaterSensor_~tmp~3#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~3#1; 1720#L395-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1, processEnvironment__wrappee__highWaterSensor_~tmp~2#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2#1; 1860#L369-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret25#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~7#1;havoc isHighWaterLevel_~tmp~5#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; 1879#L192-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 1756#L197-3 isHighWaterLevel_#t~ret25#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~5#1 := isHighWaterLevel_#t~ret25#1;havoc isHighWaterLevel_#t~ret25#1; 1679#L523-9 assume !(0 != isHighWaterLevel_~tmp~5#1);isHighWaterLevel_~tmp___0~1#1 := 1; 1680#L523-11 isHighWaterLevel_~retValue_acc~7#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; 1820#L529-3 processEnvironment__wrappee__highWaterSensor_#t~ret13#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~2#1 := processEnvironment__wrappee__highWaterSensor_#t~ret13#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1; 1821#L373-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~2#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1842#L361-6 assume { :end_inline_processEnvironment__wrappee__base } true; 1757#L369-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1758#L395-3 assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 1853#L421-1 assume { :end_inline_processEnvironment } true; 1822#L344-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret5#1, __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~0#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 1799#L184 __utac_acc__Specification5_spec__3_#t~ret5#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0#1 := __utac_acc__Specification5_spec__3_#t~ret5#1;havoc __utac_acc__Specification5_spec__3_#t~ret5#1; 1800#L80 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0#1); 1730#L80-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 1883#L354 assume { :end_inline_timeShift } true; 1815#L571-2 [2022-02-21 04:18:58,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:58,854 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2022-02-21 04:18:58,854 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:58,854 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170683515] [2022-02-21 04:18:58,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:58,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:58,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:58,864 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:58,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:58,873 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:58,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:58,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1990780121, now seen corresponding path program 1 times [2022-02-21 04:18:58,873 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:58,874 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661097731] [2022-02-21 04:18:58,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:58,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:58,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:58,907 INFO L290 TraceCheckUtils]: 0: Hoare triple {2546#true} assume !false; {2546#true} is VALID [2022-02-21 04:18:58,907 INFO L290 TraceCheckUtils]: 1: Hoare triple {2546#true} assume test_~splverifierCounter~0#1 < 4; {2546#true} is VALID [2022-02-21 04:18:58,908 INFO L290 TraceCheckUtils]: 2: Hoare triple {2546#true} test_~tmp~7#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; {2546#true} is VALID [2022-02-21 04:18:58,908 INFO L290 TraceCheckUtils]: 3: Hoare triple {2546#true} assume !(0 != test_~tmp~7#1); {2546#true} is VALID [2022-02-21 04:18:58,908 INFO L290 TraceCheckUtils]: 4: Hoare triple {2546#true} test_~tmp___0~3#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; {2546#true} is VALID [2022-02-21 04:18:58,908 INFO L290 TraceCheckUtils]: 5: Hoare triple {2546#true} assume !(0 != test_~tmp___0~3#1); {2546#true} is VALID [2022-02-21 04:18:58,909 INFO L290 TraceCheckUtils]: 6: Hoare triple {2546#true} test_~tmp___2~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; {2546#true} is VALID [2022-02-21 04:18:58,909 INFO L290 TraceCheckUtils]: 7: Hoare triple {2546#true} assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; {2546#true} is VALID [2022-02-21 04:18:58,909 INFO L290 TraceCheckUtils]: 8: Hoare triple {2546#true} assume { :end_inline_startSystem } true; {2546#true} is VALID [2022-02-21 04:18:58,909 INFO L290 TraceCheckUtils]: 9: Hoare triple {2546#true} assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret4#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~6#1;havoc isPumpRunning_~retValue_acc~6#1;isPumpRunning_~retValue_acc~6#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~6#1; {2546#true} is VALID [2022-02-21 04:18:58,909 INFO L290 TraceCheckUtils]: 10: Hoare triple {2546#true} __utac_acc__Specification5_spec__2_#t~ret4#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret4#1;havoc __utac_acc__Specification5_spec__2_#t~ret4#1; {2546#true} is VALID [2022-02-21 04:18:58,910 INFO L290 TraceCheckUtils]: 11: Hoare triple {2546#true} assume { :end_inline___utac_acc__Specification5_spec__2 } true; {2546#true} is VALID [2022-02-21 04:18:58,910 INFO L290 TraceCheckUtils]: 12: Hoare triple {2546#true} assume !(0 != ~pumpRunning~0); {2546#true} is VALID [2022-02-21 04:18:58,910 INFO L290 TraceCheckUtils]: 13: Hoare triple {2546#true} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret15#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1; {2546#true} is VALID [2022-02-21 04:18:58,910 INFO L290 TraceCheckUtils]: 14: Hoare triple {2546#true} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret14#1, processEnvironment__wrappee__lowWaterSensor_~tmp~3#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~3#1; {2546#true} is VALID [2022-02-21 04:18:58,910 INFO L290 TraceCheckUtils]: 15: Hoare triple {2546#true} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1, processEnvironment__wrappee__highWaterSensor_~tmp~2#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2#1; {2546#true} is VALID [2022-02-21 04:18:58,911 INFO L290 TraceCheckUtils]: 16: Hoare triple {2546#true} assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret25#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~7#1;havoc isHighWaterLevel_~tmp~5#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; {2546#true} is VALID [2022-02-21 04:18:58,911 INFO L290 TraceCheckUtils]: 17: Hoare triple {2546#true} assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; {2546#true} is VALID [2022-02-21 04:18:58,911 INFO L290 TraceCheckUtils]: 18: Hoare triple {2546#true} isHighWaterLevel_#t~ret25#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~5#1 := isHighWaterLevel_#t~ret25#1;havoc isHighWaterLevel_#t~ret25#1; {2546#true} is VALID [2022-02-21 04:18:58,912 INFO L290 TraceCheckUtils]: 19: Hoare triple {2546#true} assume !(0 != isHighWaterLevel_~tmp~5#1);isHighWaterLevel_~tmp___0~1#1 := 1; {2548#(not (= |ULTIMATE.start_isHighWaterLevel_~tmp___0~1#1| 0))} is VALID [2022-02-21 04:18:58,912 INFO L290 TraceCheckUtils]: 20: Hoare triple {2548#(not (= |ULTIMATE.start_isHighWaterLevel_~tmp___0~1#1| 0))} isHighWaterLevel_~retValue_acc~7#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; {2549#(not (= |ULTIMATE.start_isHighWaterLevel_#res#1| 0))} is VALID [2022-02-21 04:18:58,913 INFO L290 TraceCheckUtils]: 21: Hoare triple {2549#(not (= |ULTIMATE.start_isHighWaterLevel_#res#1| 0))} processEnvironment__wrappee__highWaterSensor_#t~ret13#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~2#1 := processEnvironment__wrappee__highWaterSensor_#t~ret13#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1; {2550#(not (= |ULTIMATE.start_processEnvironment__wrappee__highWaterSensor_~tmp~2#1| 0))} is VALID [2022-02-21 04:18:58,913 INFO L290 TraceCheckUtils]: 22: Hoare triple {2550#(not (= |ULTIMATE.start_processEnvironment__wrappee__highWaterSensor_~tmp~2#1| 0))} assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~2#1);assume { :begin_inline_processEnvironment__wrappee__base } true; {2547#false} is VALID [2022-02-21 04:18:58,913 INFO L290 TraceCheckUtils]: 23: Hoare triple {2547#false} assume { :end_inline_processEnvironment__wrappee__base } true; {2547#false} is VALID [2022-02-21 04:18:58,913 INFO L290 TraceCheckUtils]: 24: Hoare triple {2547#false} assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; {2547#false} is VALID [2022-02-21 04:18:58,914 INFO L290 TraceCheckUtils]: 25: Hoare triple {2547#false} assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; {2547#false} is VALID [2022-02-21 04:18:58,914 INFO L290 TraceCheckUtils]: 26: Hoare triple {2547#false} assume { :end_inline_processEnvironment } true; {2547#false} is VALID [2022-02-21 04:18:58,914 INFO L290 TraceCheckUtils]: 27: Hoare triple {2547#false} assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret5#1, __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~0#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; {2547#false} is VALID [2022-02-21 04:18:58,914 INFO L290 TraceCheckUtils]: 28: Hoare triple {2547#false} __utac_acc__Specification5_spec__3_#t~ret5#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0#1 := __utac_acc__Specification5_spec__3_#t~ret5#1;havoc __utac_acc__Specification5_spec__3_#t~ret5#1; {2547#false} is VALID [2022-02-21 04:18:58,914 INFO L290 TraceCheckUtils]: 29: Hoare triple {2547#false} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0#1); {2547#false} is VALID [2022-02-21 04:18:58,915 INFO L290 TraceCheckUtils]: 30: Hoare triple {2547#false} assume { :end_inline___utac_acc__Specification5_spec__3 } true; {2547#false} is VALID [2022-02-21 04:18:58,915 INFO L290 TraceCheckUtils]: 31: Hoare triple {2547#false} assume { :end_inline_timeShift } true; {2547#false} is VALID [2022-02-21 04:18:58,915 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 04:18:58,915 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:58,916 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661097731] [2022-02-21 04:18:58,916 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661097731] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:58,916 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:58,916 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:18:58,916 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845735044] [2022-02-21 04:18:58,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:58,917 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:18:58,917 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:58,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-21 04:18:58,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-21 04:18:58,918 INFO L87 Difference]: Start difference. First operand 288 states and 365 transitions. cyclomatic complexity: 79 Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 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 04:18:59,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:59,938 INFO L93 Difference]: Finished difference Result 870 states and 1091 transitions. [2022-02-21 04:18:59,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-21 04:18:59,938 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 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 04:18:59,959 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 32 edges. 32 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:18:59,960 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 870 states and 1091 transitions. [2022-02-21 04:18:59,999 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 620 [2022-02-21 04:19:00,035 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 870 states to 870 states and 1091 transitions. [2022-02-21 04:19:00,036 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 870 [2022-02-21 04:19:00,036 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 870 [2022-02-21 04:19:00,036 INFO L73 IsDeterministic]: Start isDeterministic. Operand 870 states and 1091 transitions. [2022-02-21 04:19:00,037 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:19:00,038 INFO L681 BuchiCegarLoop]: Abstraction has 870 states and 1091 transitions. [2022-02-21 04:19:00,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 870 states and 1091 transitions. [2022-02-21 04:19:00,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 870 to 315. [2022-02-21 04:19:00,046 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:19:00,046 INFO L82 GeneralOperation]: Start isEquivalent. First operand 870 states and 1091 transitions. Second operand has 315 states, 315 states have (on average 1.2444444444444445) internal successors, (392), 314 states have internal predecessors, (392), 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 04:19:00,047 INFO L74 IsIncluded]: Start isIncluded. First operand 870 states and 1091 transitions. Second operand has 315 states, 315 states have (on average 1.2444444444444445) internal successors, (392), 314 states have internal predecessors, (392), 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 04:19:00,048 INFO L87 Difference]: Start difference. First operand 870 states and 1091 transitions. Second operand has 315 states, 315 states have (on average 1.2444444444444445) internal successors, (392), 314 states have internal predecessors, (392), 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 04:19:00,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:19:00,082 INFO L93 Difference]: Finished difference Result 870 states and 1091 transitions. [2022-02-21 04:19:00,082 INFO L276 IsEmpty]: Start isEmpty. Operand 870 states and 1091 transitions. [2022-02-21 04:19:00,083 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:19:00,083 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:19:00,084 INFO L74 IsIncluded]: Start isIncluded. First operand has 315 states, 315 states have (on average 1.2444444444444445) internal successors, (392), 314 states have internal predecessors, (392), 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 870 states and 1091 transitions. [2022-02-21 04:19:00,085 INFO L87 Difference]: Start difference. First operand has 315 states, 315 states have (on average 1.2444444444444445) internal successors, (392), 314 states have internal predecessors, (392), 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 870 states and 1091 transitions. [2022-02-21 04:19:00,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:19:00,118 INFO L93 Difference]: Finished difference Result 870 states and 1091 transitions. [2022-02-21 04:19:00,118 INFO L276 IsEmpty]: Start isEmpty. Operand 870 states and 1091 transitions. [2022-02-21 04:19:00,119 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:19:00,119 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:19:00,120 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:19:00,120 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:19:00,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 315 states have (on average 1.2444444444444445) internal successors, (392), 314 states have internal predecessors, (392), 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 04:19:00,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 392 transitions. [2022-02-21 04:19:00,127 INFO L704 BuchiCegarLoop]: Abstraction has 315 states and 392 transitions. [2022-02-21 04:19:00,127 INFO L587 BuchiCegarLoop]: Abstraction has 315 states and 392 transitions. [2022-02-21 04:19:00,127 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2022-02-21 04:19:00,127 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 315 states and 392 transitions. [2022-02-21 04:19:00,129 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 216 [2022-02-21 04:19:00,129 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:19:00,129 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:19:00,130 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:19:00,130 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, 1, 1, 1, 1, 1] [2022-02-21 04:19:00,130 INFO L791 eck$LassoCheckResult]: Stem: 3675#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(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 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);~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 3634#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret12#1, main_~retValue_acc~4#1, main_~tmp~1#1;havoc main_~retValue_acc~4#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; 3635#L650 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 3478#L643 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 3479#L658 main_#t~ret12#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret12#1;havoc main_#t~ret12#1; 3629#L310 assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; 3604#L282 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 3568#L59 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_~splverifierCounter~0#1, test_~tmp~7#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~7#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 3569#L571-2 [2022-02-21 04:19:00,130 INFO L793 eck$LassoCheckResult]: Loop: 3569#L571-2 assume !false; 3572#L572 assume test_~splverifierCounter~0#1 < 4; 3573#L573 test_~tmp~7#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 3711#L581 assume !(0 != test_~tmp~7#1); 3709#L581-2 test_~tmp___0~3#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 3707#L591 assume !(0 != test_~tmp___0~3#1); 3705#L591-2 test_~tmp___2~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 3704#L601 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 3702#L557 assume { :end_inline_startSystem } true; 3701#L609-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret4#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~6#1;havoc isPumpRunning_~retValue_acc~6#1;isPumpRunning_~retValue_acc~6#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~6#1; 3700#L474 __utac_acc__Specification5_spec__2_#t~ret4#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret4#1;havoc __utac_acc__Specification5_spec__2_#t~ret4#1; 3446#L69 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 3447#L337 assume !(0 != ~pumpRunning~0); 3656#L337-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret15#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1; 3470#L421 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret14#1, processEnvironment__wrappee__lowWaterSensor_~tmp~3#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~3#1; 3471#L395-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1, processEnvironment__wrappee__highWaterSensor_~tmp~2#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2#1; 3615#L369-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret25#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~7#1;havoc isHighWaterLevel_~tmp~5#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; 3636#L192-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 3507#L197-3 isHighWaterLevel_#t~ret25#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~5#1 := isHighWaterLevel_#t~ret25#1;havoc isHighWaterLevel_#t~ret25#1; 3429#L523-9 assume 0 != isHighWaterLevel_~tmp~5#1;isHighWaterLevel_~tmp___0~1#1 := 0; 3431#L523-11 isHighWaterLevel_~retValue_acc~7#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; 3677#L529-3 processEnvironment__wrappee__highWaterSensor_#t~ret13#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~2#1 := processEnvironment__wrappee__highWaterSensor_#t~ret13#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1; 3691#L373-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~2#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 3605#L361-6 assume { :end_inline_processEnvironment__wrappee__base } true; 3606#L369-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 3722#L395-3 assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 3608#L421-1 assume { :end_inline_processEnvironment } true; 3721#L344-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret5#1, __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~0#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 3720#L184 __utac_acc__Specification5_spec__3_#t~ret5#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0#1 := __utac_acc__Specification5_spec__3_#t~ret5#1;havoc __utac_acc__Specification5_spec__3_#t~ret5#1; 3718#L80 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0#1); 3715#L80-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 3713#L354 assume { :end_inline_timeShift } true; 3569#L571-2 [2022-02-21 04:19:00,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:19:00,131 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2022-02-21 04:19:00,131 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:19:00,131 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212673867] [2022-02-21 04:19:00,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:19:00,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:19:00,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:19:00,140 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:19:00,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:19:00,149 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:19:00,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:19:00,149 INFO L85 PathProgramCache]: Analyzing trace with hash -1717381161, now seen corresponding path program 1 times [2022-02-21 04:19:00,149 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:19:00,149 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289042953] [2022-02-21 04:19:00,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:19:00,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:19:00,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:19:00,191 INFO L290 TraceCheckUtils]: 0: Hoare triple {5487#true} assume !false; {5487#true} is VALID [2022-02-21 04:19:00,191 INFO L290 TraceCheckUtils]: 1: Hoare triple {5487#true} assume test_~splverifierCounter~0#1 < 4; {5487#true} is VALID [2022-02-21 04:19:00,191 INFO L290 TraceCheckUtils]: 2: Hoare triple {5487#true} test_~tmp~7#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; {5487#true} is VALID [2022-02-21 04:19:00,191 INFO L290 TraceCheckUtils]: 3: Hoare triple {5487#true} assume !(0 != test_~tmp~7#1); {5487#true} is VALID [2022-02-21 04:19:00,192 INFO L290 TraceCheckUtils]: 4: Hoare triple {5487#true} test_~tmp___0~3#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; {5487#true} is VALID [2022-02-21 04:19:00,192 INFO L290 TraceCheckUtils]: 5: Hoare triple {5487#true} assume !(0 != test_~tmp___0~3#1); {5487#true} is VALID [2022-02-21 04:19:00,192 INFO L290 TraceCheckUtils]: 6: Hoare triple {5487#true} test_~tmp___2~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; {5487#true} is VALID [2022-02-21 04:19:00,192 INFO L290 TraceCheckUtils]: 7: Hoare triple {5487#true} assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; {5487#true} is VALID [2022-02-21 04:19:00,192 INFO L290 TraceCheckUtils]: 8: Hoare triple {5487#true} assume { :end_inline_startSystem } true; {5487#true} is VALID [2022-02-21 04:19:00,192 INFO L290 TraceCheckUtils]: 9: Hoare triple {5487#true} assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret4#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~6#1;havoc isPumpRunning_~retValue_acc~6#1;isPumpRunning_~retValue_acc~6#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~6#1; {5487#true} is VALID [2022-02-21 04:19:00,192 INFO L290 TraceCheckUtils]: 10: Hoare triple {5487#true} __utac_acc__Specification5_spec__2_#t~ret4#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret4#1;havoc __utac_acc__Specification5_spec__2_#t~ret4#1; {5487#true} is VALID [2022-02-21 04:19:00,192 INFO L290 TraceCheckUtils]: 11: Hoare triple {5487#true} assume { :end_inline___utac_acc__Specification5_spec__2 } true; {5487#true} is VALID [2022-02-21 04:19:00,193 INFO L290 TraceCheckUtils]: 12: Hoare triple {5487#true} assume !(0 != ~pumpRunning~0); {5487#true} is VALID [2022-02-21 04:19:00,193 INFO L290 TraceCheckUtils]: 13: Hoare triple {5487#true} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret15#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1; {5487#true} is VALID [2022-02-21 04:19:00,193 INFO L290 TraceCheckUtils]: 14: Hoare triple {5487#true} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret14#1, processEnvironment__wrappee__lowWaterSensor_~tmp~3#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~3#1; {5487#true} is VALID [2022-02-21 04:19:00,193 INFO L290 TraceCheckUtils]: 15: Hoare triple {5487#true} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1, processEnvironment__wrappee__highWaterSensor_~tmp~2#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2#1; {5487#true} is VALID [2022-02-21 04:19:00,193 INFO L290 TraceCheckUtils]: 16: Hoare triple {5487#true} assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret25#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~7#1;havoc isHighWaterLevel_~tmp~5#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; {5487#true} is VALID [2022-02-21 04:19:00,194 INFO L290 TraceCheckUtils]: 17: Hoare triple {5487#true} assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; {5489#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:19:00,194 INFO L290 TraceCheckUtils]: 18: Hoare triple {5489#(<= ~waterLevel~0 1)} isHighWaterLevel_#t~ret25#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~5#1 := isHighWaterLevel_#t~ret25#1;havoc isHighWaterLevel_#t~ret25#1; {5489#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:19:00,195 INFO L290 TraceCheckUtils]: 19: Hoare triple {5489#(<= ~waterLevel~0 1)} assume 0 != isHighWaterLevel_~tmp~5#1;isHighWaterLevel_~tmp___0~1#1 := 0; {5489#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:19:00,195 INFO L290 TraceCheckUtils]: 20: Hoare triple {5489#(<= ~waterLevel~0 1)} isHighWaterLevel_~retValue_acc~7#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; {5489#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:19:00,195 INFO L290 TraceCheckUtils]: 21: Hoare triple {5489#(<= ~waterLevel~0 1)} processEnvironment__wrappee__highWaterSensor_#t~ret13#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~2#1 := processEnvironment__wrappee__highWaterSensor_#t~ret13#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1; {5489#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:19:00,197 INFO L290 TraceCheckUtils]: 22: Hoare triple {5489#(<= ~waterLevel~0 1)} assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~2#1);assume { :begin_inline_processEnvironment__wrappee__base } true; {5489#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:19:00,197 INFO L290 TraceCheckUtils]: 23: Hoare triple {5489#(<= ~waterLevel~0 1)} assume { :end_inline_processEnvironment__wrappee__base } true; {5489#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:19:00,198 INFO L290 TraceCheckUtils]: 24: Hoare triple {5489#(<= ~waterLevel~0 1)} assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; {5489#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:19:00,198 INFO L290 TraceCheckUtils]: 25: Hoare triple {5489#(<= ~waterLevel~0 1)} assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; {5489#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:19:00,198 INFO L290 TraceCheckUtils]: 26: Hoare triple {5489#(<= ~waterLevel~0 1)} assume { :end_inline_processEnvironment } true; {5489#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:19:00,199 INFO L290 TraceCheckUtils]: 27: Hoare triple {5489#(<= ~waterLevel~0 1)} assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret5#1, __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~0#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; {5490#(<= |ULTIMATE.start_getWaterLevel_#res#1| 1)} is VALID [2022-02-21 04:19:00,199 INFO L290 TraceCheckUtils]: 28: Hoare triple {5490#(<= |ULTIMATE.start_getWaterLevel_#res#1| 1)} __utac_acc__Specification5_spec__3_#t~ret5#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0#1 := __utac_acc__Specification5_spec__3_#t~ret5#1;havoc __utac_acc__Specification5_spec__3_#t~ret5#1; {5491#(<= |ULTIMATE.start___utac_acc__Specification5_spec__3_~tmp~0#1| 1)} is VALID [2022-02-21 04:19:00,200 INFO L290 TraceCheckUtils]: 29: Hoare triple {5491#(<= |ULTIMATE.start___utac_acc__Specification5_spec__3_~tmp~0#1| 1)} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0#1); {5488#false} is VALID [2022-02-21 04:19:00,200 INFO L290 TraceCheckUtils]: 30: Hoare triple {5488#false} assume { :end_inline___utac_acc__Specification5_spec__3 } true; {5488#false} is VALID [2022-02-21 04:19:00,200 INFO L290 TraceCheckUtils]: 31: Hoare triple {5488#false} assume { :end_inline_timeShift } true; {5488#false} is VALID [2022-02-21 04:19:00,200 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 04:19:00,200 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:19:00,201 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289042953] [2022-02-21 04:19:00,201 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289042953] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:19:00,201 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:19:00,201 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:19:00,201 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921455380] [2022-02-21 04:19:00,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:19:00,201 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:19:00,201 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:19:00,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-21 04:19:00,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-21 04:19:00,202 INFO L87 Difference]: Start difference. First operand 315 states and 392 transitions. cyclomatic complexity: 79 Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 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 04:19:01,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:19:01,178 INFO L93 Difference]: Finished difference Result 938 states and 1142 transitions. [2022-02-21 04:19:01,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-21 04:19:01,179 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 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 04:19:01,202 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 32 edges. 32 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:19:01,203 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 938 states and 1142 transitions. [2022-02-21 04:19:01,240 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 591 [2022-02-21 04:19:01,275 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 938 states to 938 states and 1142 transitions. [2022-02-21 04:19:01,275 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 938 [2022-02-21 04:19:01,275 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 938 [2022-02-21 04:19:01,276 INFO L73 IsDeterministic]: Start isDeterministic. Operand 938 states and 1142 transitions. [2022-02-21 04:19:01,277 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:19:01,277 INFO L681 BuchiCegarLoop]: Abstraction has 938 states and 1142 transitions. [2022-02-21 04:19:01,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 938 states and 1142 transitions. [2022-02-21 04:19:01,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 938 to 620. [2022-02-21 04:19:01,289 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:19:01,291 INFO L82 GeneralOperation]: Start isEquivalent. First operand 938 states and 1142 transitions. Second operand has 620 states, 620 states have (on average 1.2209677419354839) internal successors, (757), 619 states have internal predecessors, (757), 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 04:19:01,292 INFO L74 IsIncluded]: Start isIncluded. First operand 938 states and 1142 transitions. Second operand has 620 states, 620 states have (on average 1.2209677419354839) internal successors, (757), 619 states have internal predecessors, (757), 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 04:19:01,293 INFO L87 Difference]: Start difference. First operand 938 states and 1142 transitions. Second operand has 620 states, 620 states have (on average 1.2209677419354839) internal successors, (757), 619 states have internal predecessors, (757), 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 04:19:01,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:19:01,324 INFO L93 Difference]: Finished difference Result 938 states and 1142 transitions. [2022-02-21 04:19:01,324 INFO L276 IsEmpty]: Start isEmpty. Operand 938 states and 1142 transitions. [2022-02-21 04:19:01,325 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:19:01,325 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:19:01,327 INFO L74 IsIncluded]: Start isIncluded. First operand has 620 states, 620 states have (on average 1.2209677419354839) internal successors, (757), 619 states have internal predecessors, (757), 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 938 states and 1142 transitions. [2022-02-21 04:19:01,328 INFO L87 Difference]: Start difference. First operand has 620 states, 620 states have (on average 1.2209677419354839) internal successors, (757), 619 states have internal predecessors, (757), 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 938 states and 1142 transitions. [2022-02-21 04:19:01,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:19:01,362 INFO L93 Difference]: Finished difference Result 938 states and 1142 transitions. [2022-02-21 04:19:01,362 INFO L276 IsEmpty]: Start isEmpty. Operand 938 states and 1142 transitions. [2022-02-21 04:19:01,363 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:19:01,363 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:19:01,363 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:19:01,363 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:19:01,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 620 states, 620 states have (on average 1.2209677419354839) internal successors, (757), 619 states have internal predecessors, (757), 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 04:19:01,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 620 states to 620 states and 757 transitions. [2022-02-21 04:19:01,381 INFO L704 BuchiCegarLoop]: Abstraction has 620 states and 757 transitions. [2022-02-21 04:19:01,381 INFO L587 BuchiCegarLoop]: Abstraction has 620 states and 757 transitions. [2022-02-21 04:19:01,381 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2022-02-21 04:19:01,381 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 620 states and 757 transitions. [2022-02-21 04:19:01,383 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 430 [2022-02-21 04:19:01,383 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:19:01,384 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:19:01,384 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:19:01,384 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, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:19:01,384 INFO L791 eck$LassoCheckResult]: Stem: 6686#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(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 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);~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 6644#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret12#1, main_~retValue_acc~4#1, main_~tmp~1#1;havoc main_~retValue_acc~4#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; 6645#L650 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 6489#L643 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 6490#L658 main_#t~ret12#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret12#1;havoc main_#t~ret12#1; 6640#L310 assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; 6617#L282 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 6581#L59 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_~splverifierCounter~0#1, test_~tmp~7#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~7#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 6582#L571-2 [2022-02-21 04:19:01,385 INFO L793 eck$LassoCheckResult]: Loop: 6582#L571-2 assume !false; 6584#L572 assume test_~splverifierCounter~0#1 < 4; 6516#L573 test_~tmp~7#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 6517#L581 assume !(0 != test_~tmp~7#1); 6683#L581-2 test_~tmp___0~3#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 6592#L591 assume !(0 != test_~tmp___0~3#1); 6593#L591-2 test_~tmp___2~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 6597#L601 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 6653#L557 assume { :end_inline_startSystem } true; 6558#L609-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret4#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~6#1;havoc isPumpRunning_~retValue_acc~6#1;isPumpRunning_~retValue_acc~6#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~6#1; 6524#L474 __utac_acc__Specification5_spec__2_#t~ret4#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret4#1;havoc __utac_acc__Specification5_spec__2_#t~ret4#1; 6459#L69 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 6460#L337 assume !(0 != ~pumpRunning~0); 6601#L337-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret15#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1; 6481#L421 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret14#1, processEnvironment__wrappee__lowWaterSensor_~tmp~3#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~3#1; 6482#L395-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1, processEnvironment__wrappee__highWaterSensor_~tmp~2#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2#1; 6626#L369-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret25#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~7#1;havoc isHighWaterLevel_~tmp~5#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; 6647#L192-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 6520#L197-3 isHighWaterLevel_#t~ret25#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~5#1 := isHighWaterLevel_#t~ret25#1;havoc isHighWaterLevel_#t~ret25#1; 6521#L523-9 assume 0 != isHighWaterLevel_~tmp~5#1;isHighWaterLevel_~tmp___0~1#1 := 0; 7026#L523-11 isHighWaterLevel_~retValue_acc~7#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; 7023#L529-3 processEnvironment__wrappee__highWaterSensor_#t~ret13#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~2#1 := processEnvironment__wrappee__highWaterSensor_#t~ret13#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1; 7022#L373-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~2#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 7021#L361-6 assume { :end_inline_processEnvironment__wrappee__base } true; 6969#L369-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 6965#L395-3 assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 6963#L421-1 assume { :end_inline_processEnvironment } true; 6944#L344-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret5#1, __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~0#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 6564#L184 __utac_acc__Specification5_spec__3_#t~ret5#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0#1 := __utac_acc__Specification5_spec__3_#t~ret5#1;havoc __utac_acc__Specification5_spec__3_#t~ret5#1; 6565#L80 assume 2 != __utac_acc__Specification5_spec__3_~tmp~0#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~6#1;havoc isPumpRunning_~retValue_acc~6#1;isPumpRunning_~retValue_acc~6#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~6#1; 6624#L474-1 __utac_acc__Specification5_spec__3_#t~ret6#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~0#1 := __utac_acc__Specification5_spec__3_#t~ret6#1;havoc __utac_acc__Specification5_spec__3_#t~ret6#1; 6598#L84 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0#1); 6492#L80-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 6652#L354 assume { :end_inline_timeShift } true; 6582#L571-2 [2022-02-21 04:19:01,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:19:01,385 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 5 times [2022-02-21 04:19:01,386 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:19:01,386 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841394688] [2022-02-21 04:19:01,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:19:01,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:19:01,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:19:01,408 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:19:01,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:19:01,415 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:19:01,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:19:01,416 INFO L85 PathProgramCache]: Analyzing trace with hash -1154946670, now seen corresponding path program 1 times [2022-02-21 04:19:01,416 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:19:01,416 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582633437] [2022-02-21 04:19:01,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:19:01,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:19:01,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:19:01,423 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:19:01,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:19:01,430 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:19:01,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:19:01,430 INFO L85 PathProgramCache]: Analyzing trace with hash 906203707, now seen corresponding path program 1 times [2022-02-21 04:19:01,431 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:19:01,431 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246038923] [2022-02-21 04:19:01,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:19:01,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:19:01,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:19:01,445 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:19:01,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:19:01,459 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:19:04,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:19:04 BoogieIcfgContainer [2022-02-21 04:19:04,413 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:19:04,413 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:19:04,413 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:19:04,413 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:19:04,414 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:56" (3/4) ... [2022-02-21 04:19:04,416 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:19:04,469 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:19:04,470 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:19:04,471 INFO L158 Benchmark]: Toolchain (without parser) took 9296.03ms. Allocated memory was 98.6MB in the beginning and 180.4MB in the end (delta: 81.8MB). Free memory was 63.7MB in the beginning and 138.5MB in the end (delta: -74.8MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. [2022-02-21 04:19:04,471 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 79.7MB. Free memory was 58.6MB in the beginning and 58.5MB in the end (delta: 25.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:19:04,472 INFO L158 Benchmark]: CACSL2BoogieTranslator took 434.38ms. Allocated memory is still 98.6MB. Free memory was 63.4MB in the beginning and 61.5MB in the end (delta: 1.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-02-21 04:19:04,472 INFO L158 Benchmark]: Boogie Procedure Inliner took 98.09ms. Allocated memory is still 98.6MB. Free memory was 61.5MB in the beginning and 55.7MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-02-21 04:19:04,473 INFO L158 Benchmark]: Boogie Preprocessor took 92.87ms. Allocated memory is still 98.6MB. Free memory was 55.7MB in the beginning and 51.8MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:19:04,473 INFO L158 Benchmark]: RCFGBuilder took 909.06ms. Allocated memory is still 98.6MB. Free memory was 51.8MB in the beginning and 46.9MB in the end (delta: 4.9MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. [2022-02-21 04:19:04,473 INFO L158 Benchmark]: BuchiAutomizer took 7695.34ms. Allocated memory was 98.6MB in the beginning and 180.4MB in the end (delta: 81.8MB). Free memory was 46.4MB in the beginning and 141.6MB in the end (delta: -95.3MB). Peak memory consumption was 81.0MB. Max. memory is 16.1GB. [2022-02-21 04:19:04,474 INFO L158 Benchmark]: Witness Printer took 56.79ms. Allocated memory is still 180.4MB. Free memory was 141.6MB in the beginning and 138.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:19:04,475 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 0.19ms. Allocated memory is still 79.7MB. Free memory was 58.6MB in the beginning and 58.5MB in the end (delta: 25.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 434.38ms. Allocated memory is still 98.6MB. Free memory was 63.4MB in the beginning and 61.5MB in the end (delta: 1.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 98.09ms. Allocated memory is still 98.6MB. Free memory was 61.5MB in the beginning and 55.7MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 92.87ms. Allocated memory is still 98.6MB. Free memory was 55.7MB in the beginning and 51.8MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 909.06ms. Allocated memory is still 98.6MB. Free memory was 51.8MB in the beginning and 46.9MB in the end (delta: 4.9MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. * BuchiAutomizer took 7695.34ms. Allocated memory was 98.6MB in the beginning and 180.4MB in the end (delta: 81.8MB). Free memory was 46.4MB in the beginning and 141.6MB in the end (delta: -95.3MB). Peak memory consumption was 81.0MB. Max. memory is 16.1GB. * Witness Printer took 56.79ms. Allocated memory is still 180.4MB. Free memory was 141.6MB in the beginning and 138.5MB in the end (delta: 3.1MB). 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 4 terminating modules (4 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.4 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 620 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 7.6s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 3.8s. Construction of modules took 0.3s. Büchi inclusion checks took 2.7s. Highest rank in rank-based complementation 0. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 873 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.1s Buchi closure took 0.0s. Biggest automaton had 620 states and ocurred in iteration 4. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3144 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3144 mSDsluCounter, 3549 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2040 mSDsCounter, 124 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 302 IncrementalHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 124 mSolverCounterUnsat, 1509 mSDtfsCounter, 302 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI3 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: 571]: 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@3e328a1f=0, NULL=0, tmp___0=0, head=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3945d675=0, retValue_acc=0, NULL=1, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@58bcfd78=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@22197590=0, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@33b4ca9b=0, retValue_acc=1, \result=1, \result=1, tmp=1, retValue_acc=0, tmp=1, tmp___2=29, \result=0, cleanupTimeShifts=4, switchedOnBeforeTS=0, \result=0, tmp=1, tmp___0=0, tmp=0, head=0, \result=1, tmp___1=0, retValue_acc=0, NULL=0, waterLevel=1, systemActive=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3e94b017=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5a4d84a=0, retValue_acc=1, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@24b9e546=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7e783272=0, tmp=0, tmp___0=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@36fcaf33=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2eeff46=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@482932fd=29} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 571]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L53] int switchedOnBeforeTS ; [L109] int waterLevel = 1; [L110] int methaneLevelCritical = 0; [L221] int cleanupTimeShifts = 4; [L327] int pumpRunning = 0; [L328] int systemActive = 1; [L832] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L301] int retValue_acc ; [L302] int tmp ; [L306] FCALL select_helpers() [L307] FCALL select_features() [L308] CALL, EXPR valid_product() [L654] int retValue_acc ; [L657] retValue_acc = 1 [L658] return (retValue_acc); [L308] RET, EXPR valid_product() [L308] tmp = valid_product() [L310] COND TRUE \read(tmp) [L312] FCALL setup() [L313] CALL runTest() [L291] CALL __utac_acc__Specification5_spec__1() [L58] switchedOnBeforeTS = 0 [L291] RET __utac_acc__Specification5_spec__1() [L292] CALL test() [L562] int splverifierCounter ; [L563] int tmp ; [L564] int tmp___0 ; [L565] int tmp___1 ; [L566] int tmp___2 ; [L569] splverifierCounter = 0 Loop: [L571] COND TRUE 1 [L573] COND TRUE splverifierCounter < 4 [L579] tmp = __VERIFIER_nondet_int() [L581] COND FALSE !(\read(tmp)) [L589] tmp___0 = __VERIFIER_nondet_int() [L591] COND FALSE !(\read(tmp___0)) [L599] tmp___2 = __VERIFIER_nondet_int() [L601] COND TRUE \read(tmp___2) [L603] CALL startSystem() [L556] systemActive = 1 [L603] RET startSystem() [L616] CALL timeShift() [L335] CALL __utac_acc__Specification5_spec__2() [L67] CALL, EXPR isPumpRunning() [L470] int retValue_acc ; [L473] retValue_acc = pumpRunning [L474] return (retValue_acc); [L67] RET, EXPR isPumpRunning() [L67] switchedOnBeforeTS = isPumpRunning() [L335] RET __utac_acc__Specification5_spec__2() [L337] COND FALSE !(\read(pumpRunning)) [L344] COND TRUE \read(systemActive) [L346] CALL processEnvironment() [L418] int tmp ; [L421] COND FALSE !(\read(pumpRunning)) [L436] CALL processEnvironment__wrappee__lowWaterSensor() [L392] int tmp ; [L395] COND FALSE !(\read(pumpRunning)) [L410] CALL processEnvironment__wrappee__highWaterSensor() [L366] int tmp ; [L369] COND TRUE ! pumpRunning [L371] CALL, EXPR isHighWaterLevel() [L515] int retValue_acc ; [L516] int tmp ; [L517] int tmp___0 ; [L521] CALL, EXPR isHighWaterSensorDry() [L189] int retValue_acc ; [L192] COND TRUE waterLevel < 2 [L193] retValue_acc = 1 [L194] return (retValue_acc); [L521] RET, EXPR isHighWaterSensorDry() [L521] tmp = isHighWaterSensorDry() [L523] COND TRUE \read(tmp) [L524] tmp___0 = 0 [L528] retValue_acc = tmp___0 [L529] return (retValue_acc); [L371] RET, EXPR isHighWaterLevel() [L371] tmp = isHighWaterLevel() [L373] COND FALSE !(\read(tmp)) [L379] FCALL processEnvironment__wrappee__base() [L410] RET processEnvironment__wrappee__highWaterSensor() [L436] RET processEnvironment__wrappee__lowWaterSensor() [L346] RET processEnvironment() [L352] CALL __utac_acc__Specification5_spec__3() [L73] int tmp ; [L74] int tmp___0 ; [L78] CALL, EXPR getWaterLevel() [L180] int retValue_acc ; [L183] retValue_acc = waterLevel [L184] return (retValue_acc); [L78] RET, EXPR getWaterLevel() [L78] tmp = getWaterLevel() [L80] COND TRUE tmp != 2 [L82] CALL, EXPR isPumpRunning() [L470] int retValue_acc ; [L473] retValue_acc = pumpRunning [L474] return (retValue_acc); [L82] RET, EXPR isPumpRunning() [L82] tmp___0 = isPumpRunning() [L84] COND FALSE !(\read(tmp___0)) [L352] RET __utac_acc__Specification5_spec__3() [L616] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:19:04,525 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)