./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product24.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_product24.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 bacd385beffa77b8f8ef1edb48e90e10775e6eeea64904371428d8b002d57b38 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:18:30,637 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:18:30,639 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:18:30,665 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:18:30,666 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:18:30,666 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:18:30,667 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:18:30,673 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:18:30,674 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:18:30,679 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:18:30,679 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:18:30,680 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:18:30,681 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:18:30,683 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:18:30,684 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:18:30,685 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:18:30,686 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:18:30,687 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:18:30,690 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:18:30,696 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:18:30,697 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:18:30,697 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:18:30,699 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:18:30,699 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:18:30,704 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:18:30,704 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:18:30,704 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:18:30,706 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:18:30,706 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:18:30,707 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:18:30,707 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:18:30,708 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:18:30,709 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:18:30,710 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:18:30,711 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:18:30,711 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:18:30,711 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:18:30,711 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:18:30,712 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:18:30,712 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:18:30,713 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:18:30,713 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:18:30,742 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:18:30,742 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:18:30,742 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:18:30,743 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:18:30,744 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:18:30,744 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:18:30,744 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:18:30,744 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:18:30,744 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:18:30,744 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:18:30,745 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:18:30,745 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:18:30,745 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:18:30,745 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:18:30,746 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:18:30,746 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:18:30,746 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:18:30,746 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:18:30,746 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:18:30,746 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:18:30,746 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:18:30,747 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:18:30,747 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:18:30,747 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:18:30,747 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:18:30,747 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:18:30,747 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:18:30,748 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:18:30,748 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:18:30,748 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:18:30,748 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:18:30,749 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:18:30,749 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bacd385beffa77b8f8ef1edb48e90e10775e6eeea64904371428d8b002d57b38 [2022-02-21 04:18:30,921 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:18:30,937 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:18:30,939 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:18:30,940 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:18:30,940 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:18:30,941 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product24.cil.c [2022-02-21 04:18:31,009 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84ff319dd/0abdb06b1b4a47779fd3a50e2c65f799/FLAG9ec1b1982 [2022-02-21 04:18:31,429 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:18:31,430 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product24.cil.c [2022-02-21 04:18:31,437 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84ff319dd/0abdb06b1b4a47779fd3a50e2c65f799/FLAG9ec1b1982 [2022-02-21 04:18:31,445 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84ff319dd/0abdb06b1b4a47779fd3a50e2c65f799 [2022-02-21 04:18:31,448 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:18:31,449 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:18:31,450 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:18:31,450 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:18:31,452 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:18:31,453 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:18:31" (1/1) ... [2022-02-21 04:18:31,454 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a2806d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:31, skipping insertion in model container [2022-02-21 04:18:31,455 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:18:31" (1/1) ... [2022-02-21 04:18:31,460 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:18:31,491 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:18:31,757 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_product24.cil.c[18746,18759] [2022-02-21 04:18:31,758 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:18:31,768 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:18:31,818 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_product24.cil.c[18746,18759] [2022-02-21 04:18:31,818 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:18:31,830 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:18:31,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:31 WrapperNode [2022-02-21 04:18:31,831 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:18:31,832 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:18:31,832 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:18:31,832 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:18:31,837 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:31" (1/1) ... [2022-02-21 04:18:31,861 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:31" (1/1) ... [2022-02-21 04:18:31,895 INFO L137 Inliner]: procedures = 57, calls = 159, calls flagged for inlining = 56, calls inlined = 87, statements flattened = 607 [2022-02-21 04:18:31,899 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:18:31,900 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:18:31,900 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:18:31,900 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:18:31,906 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:31" (1/1) ... [2022-02-21 04:18:31,906 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:31" (1/1) ... [2022-02-21 04:18:31,913 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:31" (1/1) ... [2022-02-21 04:18:31,913 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:31" (1/1) ... [2022-02-21 04:18:31,926 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:31" (1/1) ... [2022-02-21 04:18:31,943 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:31" (1/1) ... [2022-02-21 04:18:31,945 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:31" (1/1) ... [2022-02-21 04:18:31,947 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:18:31,963 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:18:31,964 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:18:31,964 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:18:31,964 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:31" (1/1) ... [2022-02-21 04:18:31,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:18:31,979 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:18:31,991 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 04:18:31,996 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 04:18:32,022 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:18:32,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:18:32,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:18:32,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:18:32,100 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:18:32,101 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:18:32,523 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:18:32,530 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:18:32,533 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:18:32,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:32 BoogieIcfgContainer [2022-02-21 04:18:32,535 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:18:32,536 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:18:32,536 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:18:32,539 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:18:32,539 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:32,540 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:18:31" (1/3) ... [2022-02-21 04:18:32,540 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6a92bc18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:18:32, skipping insertion in model container [2022-02-21 04:18:32,541 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:32,541 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:31" (2/3) ... [2022-02-21 04:18:32,541 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6a92bc18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:18:32, skipping insertion in model container [2022-02-21 04:18:32,541 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:32,541 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:32" (3/3) ... [2022-02-21 04:18:32,543 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product24.cil.c [2022-02-21 04:18:32,585 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:18:32,585 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:18:32,585 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:18:32,585 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:18:32,585 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:18:32,585 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:18:32,586 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:18:32,586 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:18:32,609 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 165 states, 164 states have (on average 1.3414634146341464) internal successors, (220), 164 states have internal predecessors, (220), 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 04:18:32,670 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 107 [2022-02-21 04:18:32,671 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:32,671 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:32,675 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:32,676 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 04:18:32,676 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:18:32,680 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 165 states, 164 states have (on average 1.3414634146341464) internal successors, (220), 164 states have internal predecessors, (220), 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 04:18:32,702 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 107 [2022-02-21 04:18:32,702 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:32,702 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:32,703 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:32,703 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 04:18:32,710 INFO L791 eck$LassoCheckResult]: Stem: 148#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);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0; 55#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 59#L272true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 84#L265true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 111#L280true main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 118#L142true assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 138#L113true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 142#L938true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet23#1, test_#t~nondet24#1, test_#t~nondet25#1, test_#t~nondet26#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 131#L506-2true [2022-02-21 04:18:32,711 INFO L793 eck$LassoCheckResult]: Loop: 131#L506-2true assume !false; 34#L507true assume test_~splverifierCounter~0#1 < 4; 45#L508true test_~tmp~4#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; 101#L516true assume !(0 != test_~tmp~4#1); 46#L516-2true test_~tmp___0~1#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1; 112#L526true assume !(0 != test_~tmp___0~1#1); 124#L526-2true test_~tmp___2~0#1 := test_#t~nondet25#1;havoc test_#t~nondet25#1; 82#L536true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 147#L492true assume { :end_inline_startSystem } true; 4#L544-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret50#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~7#1;havoc isPumpRunning_~retValue_acc~7#1;isPumpRunning_~retValue_acc~7#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~7#1; 158#L413true __utac_acc__Specification5_spec__2_#t~ret50#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret50#1;havoc __utac_acc__Specification5_spec__2_#t~ret50#1; 8#L948true assume { :end_inline___utac_acc__Specification5_spec__2 } true; 102#L302true assume !(0 != ~pumpRunning~0); 143#L302-2true assume !(0 != ~systemActive~0); 29#L309-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_~tmp~8#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~8#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~2#1;havoc getWaterLevel_~retValue_acc~2#1;getWaterLevel_~retValue_acc~2#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~2#1; 76#L236true __utac_acc__Specification5_spec__3_#t~ret51#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~8#1 := __utac_acc__Specification5_spec__3_#t~ret51#1;havoc __utac_acc__Specification5_spec__3_#t~ret51#1; 122#L959true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~8#1); 63#L959-1true assume { :end_inline___utac_acc__Specification5_spec__3 } true; 167#L319true assume { :end_inline_timeShift } true; 131#L506-2true [2022-02-21 04:18:32,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:32,716 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2022-02-21 04:18:32,722 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:32,723 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501218894] [2022-02-21 04:18:32,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:32,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:32,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:32,831 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:32,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:32,872 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:32,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:32,875 INFO L85 PathProgramCache]: Analyzing trace with hash -664512405, now seen corresponding path program 1 times [2022-02-21 04:18:32,875 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:32,876 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411515220] [2022-02-21 04:18:32,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:32,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:32,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:32,960 INFO L290 TraceCheckUtils]: 0: Hoare triple {171#true} assume !false; {171#true} is VALID [2022-02-21 04:18:32,960 INFO L290 TraceCheckUtils]: 1: Hoare triple {171#true} assume test_~splverifierCounter~0#1 < 4; {171#true} is VALID [2022-02-21 04:18:32,960 INFO L290 TraceCheckUtils]: 2: Hoare triple {171#true} test_~tmp~4#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; {171#true} is VALID [2022-02-21 04:18:32,960 INFO L290 TraceCheckUtils]: 3: Hoare triple {171#true} assume !(0 != test_~tmp~4#1); {171#true} is VALID [2022-02-21 04:18:32,961 INFO L290 TraceCheckUtils]: 4: Hoare triple {171#true} test_~tmp___0~1#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1; {171#true} is VALID [2022-02-21 04:18:32,961 INFO L290 TraceCheckUtils]: 5: Hoare triple {171#true} assume !(0 != test_~tmp___0~1#1); {171#true} is VALID [2022-02-21 04:18:32,961 INFO L290 TraceCheckUtils]: 6: Hoare triple {171#true} test_~tmp___2~0#1 := test_#t~nondet25#1;havoc test_#t~nondet25#1; {171#true} is VALID [2022-02-21 04:18:32,962 INFO L290 TraceCheckUtils]: 7: Hoare triple {171#true} assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; {173#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:32,963 INFO L290 TraceCheckUtils]: 8: Hoare triple {173#(<= 1 ~systemActive~0)} assume { :end_inline_startSystem } true; {173#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:32,963 INFO L290 TraceCheckUtils]: 9: Hoare triple {173#(<= 1 ~systemActive~0)} assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret50#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~7#1;havoc isPumpRunning_~retValue_acc~7#1;isPumpRunning_~retValue_acc~7#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~7#1; {173#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:32,964 INFO L290 TraceCheckUtils]: 10: Hoare triple {173#(<= 1 ~systemActive~0)} __utac_acc__Specification5_spec__2_#t~ret50#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret50#1;havoc __utac_acc__Specification5_spec__2_#t~ret50#1; {173#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:32,964 INFO L290 TraceCheckUtils]: 11: Hoare triple {173#(<= 1 ~systemActive~0)} assume { :end_inline___utac_acc__Specification5_spec__2 } true; {173#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:32,964 INFO L290 TraceCheckUtils]: 12: Hoare triple {173#(<= 1 ~systemActive~0)} assume !(0 != ~pumpRunning~0); {173#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:32,965 INFO L290 TraceCheckUtils]: 13: Hoare triple {173#(<= 1 ~systemActive~0)} assume !(0 != ~systemActive~0); {172#false} is VALID [2022-02-21 04:18:32,966 INFO L290 TraceCheckUtils]: 14: Hoare triple {172#false} assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_~tmp~8#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~8#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~2#1;havoc getWaterLevel_~retValue_acc~2#1;getWaterLevel_~retValue_acc~2#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~2#1; {172#false} is VALID [2022-02-21 04:18:32,966 INFO L290 TraceCheckUtils]: 15: Hoare triple {172#false} __utac_acc__Specification5_spec__3_#t~ret51#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~8#1 := __utac_acc__Specification5_spec__3_#t~ret51#1;havoc __utac_acc__Specification5_spec__3_#t~ret51#1; {172#false} is VALID [2022-02-21 04:18:32,966 INFO L290 TraceCheckUtils]: 16: Hoare triple {172#false} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~8#1); {172#false} is VALID [2022-02-21 04:18:32,966 INFO L290 TraceCheckUtils]: 17: Hoare triple {172#false} assume { :end_inline___utac_acc__Specification5_spec__3 } true; {172#false} is VALID [2022-02-21 04:18:32,966 INFO L290 TraceCheckUtils]: 18: Hoare triple {172#false} assume { :end_inline_timeShift } true; {172#false} is VALID [2022-02-21 04:18:32,968 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 04:18:32,968 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:32,968 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411515220] [2022-02-21 04:18:32,969 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411515220] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:32,969 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:32,969 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:18:32,970 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638993301] [2022-02-21 04:18:32,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:32,975 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:18:32,976 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:33,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:18:33,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:18:33,007 INFO L87 Difference]: Start difference. First operand has 165 states, 164 states have (on average 1.3414634146341464) internal successors, (220), 164 states have internal predecessors, (220), 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 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 04:18:33,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:33,288 INFO L93 Difference]: Finished difference Result 314 states and 406 transitions. [2022-02-21 04:18:33,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:18:33,289 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 04:18:33,302 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 19 edges. 19 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:18:33,305 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 314 states and 406 transitions. [2022-02-21 04:18:33,314 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 204 [2022-02-21 04:18:33,324 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 314 states to 294 states and 385 transitions. [2022-02-21 04:18:33,325 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 294 [2022-02-21 04:18:33,325 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 294 [2022-02-21 04:18:33,326 INFO L73 IsDeterministic]: Start isDeterministic. Operand 294 states and 385 transitions. [2022-02-21 04:18:33,327 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:33,327 INFO L681 BuchiCegarLoop]: Abstraction has 294 states and 385 transitions. [2022-02-21 04:18:33,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states and 385 transitions. [2022-02-21 04:18:33,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 291. [2022-02-21 04:18:33,354 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:33,355 INFO L82 GeneralOperation]: Start isEquivalent. First operand 294 states and 385 transitions. Second operand has 291 states, 291 states have (on average 1.309278350515464) internal successors, (381), 290 states have internal predecessors, (381), 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 04:18:33,357 INFO L74 IsIncluded]: Start isIncluded. First operand 294 states and 385 transitions. Second operand has 291 states, 291 states have (on average 1.309278350515464) internal successors, (381), 290 states have internal predecessors, (381), 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 04:18:33,359 INFO L87 Difference]: Start difference. First operand 294 states and 385 transitions. Second operand has 291 states, 291 states have (on average 1.309278350515464) internal successors, (381), 290 states have internal predecessors, (381), 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 04:18:33,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:33,376 INFO L93 Difference]: Finished difference Result 294 states and 385 transitions. [2022-02-21 04:18:33,376 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 385 transitions. [2022-02-21 04:18:33,382 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:33,382 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:33,383 INFO L74 IsIncluded]: Start isIncluded. First operand has 291 states, 291 states have (on average 1.309278350515464) internal successors, (381), 290 states have internal predecessors, (381), 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 294 states and 385 transitions. [2022-02-21 04:18:33,384 INFO L87 Difference]: Start difference. First operand has 291 states, 291 states have (on average 1.309278350515464) internal successors, (381), 290 states have internal predecessors, (381), 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 294 states and 385 transitions. [2022-02-21 04:18:33,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:33,390 INFO L93 Difference]: Finished difference Result 294 states and 385 transitions. [2022-02-21 04:18:33,390 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 385 transitions. [2022-02-21 04:18:33,393 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:33,393 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:33,393 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:33,397 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:33,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 291 states have (on average 1.309278350515464) internal successors, (381), 290 states have internal predecessors, (381), 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 04:18:33,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 381 transitions. [2022-02-21 04:18:33,405 INFO L704 BuchiCegarLoop]: Abstraction has 291 states and 381 transitions. [2022-02-21 04:18:33,406 INFO L587 BuchiCegarLoop]: Abstraction has 291 states and 381 transitions. [2022-02-21 04:18:33,406 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:18:33,406 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 291 states and 381 transitions. [2022-02-21 04:18:33,407 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 201 [2022-02-21 04:18:33,407 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:33,407 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:33,408 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:33,408 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] [2022-02-21 04:18:33,409 INFO L791 eck$LassoCheckResult]: Stem: 663#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);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0; 580#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 581#L272 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 586#L265 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 619#L280 main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 643#L142 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 648#L113 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 659#L938 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet23#1, test_#t~nondet24#1, test_#t~nondet25#1, test_#t~nondet26#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 655#L506-2 [2022-02-21 04:18:33,409 INFO L793 eck$LassoCheckResult]: Loop: 655#L506-2 assume !false; 548#L507 assume test_~splverifierCounter~0#1 < 4; 549#L508 test_~tmp~4#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; 566#L516 assume !(0 != test_~tmp~4#1); 552#L516-2 test_~tmp___0~1#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1; 567#L526 assume !(0 != test_~tmp___0~1#1); 622#L526-2 test_~tmp___2~0#1 := test_#t~nondet25#1;havoc test_#t~nondet25#1; 616#L536 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 617#L492 assume { :end_inline_startSystem } true; 488#L544-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret50#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~7#1;havoc isPumpRunning_~retValue_acc~7#1;isPumpRunning_~retValue_acc~7#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~7#1; 489#L413 __utac_acc__Specification5_spec__2_#t~ret50#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret50#1;havoc __utac_acc__Specification5_spec__2_#t~ret50#1; 496#L948 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 497#L302 assume !(0 != ~pumpRunning~0); 661#L302-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret12#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 532#L360 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret11#1, processEnvironment__wrappee__lowWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~1#1; 533#L334-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 597#L326-3 assume { :end_inline_processEnvironment__wrappee__base } true; 689#L334-3 assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 645#L360-1 assume { :end_inline_processEnvironment } true; 537#L309-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_~tmp~8#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~8#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~2#1;havoc getWaterLevel_~retValue_acc~2#1;getWaterLevel_~retValue_acc~2#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~2#1; 538#L236 __utac_acc__Specification5_spec__3_#t~ret51#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~8#1 := __utac_acc__Specification5_spec__3_#t~ret51#1;havoc __utac_acc__Specification5_spec__3_#t~ret51#1; 607#L959 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~8#1); 681#L959-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 680#L319 assume { :end_inline_timeShift } true; 655#L506-2 [2022-02-21 04:18:33,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:33,409 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2022-02-21 04:18:33,410 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:33,410 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504509832] [2022-02-21 04:18:33,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:33,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:33,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:33,447 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:33,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:33,458 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:33,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:33,459 INFO L85 PathProgramCache]: Analyzing trace with hash -818157738, now seen corresponding path program 1 times [2022-02-21 04:18:33,459 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:33,460 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339041545] [2022-02-21 04:18:33,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:33,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:33,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:33,467 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:33,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:33,472 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:33,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:33,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1054302401, now seen corresponding path program 1 times [2022-02-21 04:18:33,473 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:33,473 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245281135] [2022-02-21 04:18:33,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:33,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:33,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:33,547 INFO L290 TraceCheckUtils]: 0: Hoare triple {1374#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);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0; {1376#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:33,548 INFO L290 TraceCheckUtils]: 1: Hoare triple {1376#(not (= 2 ~waterLevel~0))} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; {1376#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:33,548 INFO L290 TraceCheckUtils]: 2: Hoare triple {1376#(not (= 2 ~waterLevel~0))} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {1376#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:33,549 INFO L290 TraceCheckUtils]: 3: Hoare triple {1376#(not (= 2 ~waterLevel~0))} assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; {1376#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:33,549 INFO L290 TraceCheckUtils]: 4: Hoare triple {1376#(not (= 2 ~waterLevel~0))} main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; {1376#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:33,550 INFO L290 TraceCheckUtils]: 5: Hoare triple {1376#(not (= 2 ~waterLevel~0))} assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; {1376#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:33,550 INFO L290 TraceCheckUtils]: 6: Hoare triple {1376#(not (= 2 ~waterLevel~0))} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; {1376#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:33,550 INFO L290 TraceCheckUtils]: 7: Hoare triple {1376#(not (= 2 ~waterLevel~0))} assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet23#1, test_#t~nondet24#1, test_#t~nondet25#1, test_#t~nondet26#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {1376#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:33,551 INFO L290 TraceCheckUtils]: 8: Hoare triple {1376#(not (= 2 ~waterLevel~0))} assume !false; {1376#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:33,551 INFO L290 TraceCheckUtils]: 9: Hoare triple {1376#(not (= 2 ~waterLevel~0))} assume test_~splverifierCounter~0#1 < 4; {1376#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:33,551 INFO L290 TraceCheckUtils]: 10: Hoare triple {1376#(not (= 2 ~waterLevel~0))} test_~tmp~4#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; {1376#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:33,551 INFO L290 TraceCheckUtils]: 11: Hoare triple {1376#(not (= 2 ~waterLevel~0))} assume !(0 != test_~tmp~4#1); {1376#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:33,552 INFO L290 TraceCheckUtils]: 12: Hoare triple {1376#(not (= 2 ~waterLevel~0))} test_~tmp___0~1#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1; {1376#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:33,552 INFO L290 TraceCheckUtils]: 13: Hoare triple {1376#(not (= 2 ~waterLevel~0))} assume !(0 != test_~tmp___0~1#1); {1376#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:33,552 INFO L290 TraceCheckUtils]: 14: Hoare triple {1376#(not (= 2 ~waterLevel~0))} test_~tmp___2~0#1 := test_#t~nondet25#1;havoc test_#t~nondet25#1; {1376#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:33,553 INFO L290 TraceCheckUtils]: 15: Hoare triple {1376#(not (= 2 ~waterLevel~0))} assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; {1376#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:33,553 INFO L290 TraceCheckUtils]: 16: Hoare triple {1376#(not (= 2 ~waterLevel~0))} assume { :end_inline_startSystem } true; {1376#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:33,553 INFO L290 TraceCheckUtils]: 17: Hoare triple {1376#(not (= 2 ~waterLevel~0))} assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret50#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~7#1;havoc isPumpRunning_~retValue_acc~7#1;isPumpRunning_~retValue_acc~7#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~7#1; {1376#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:33,554 INFO L290 TraceCheckUtils]: 18: Hoare triple {1376#(not (= 2 ~waterLevel~0))} __utac_acc__Specification5_spec__2_#t~ret50#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret50#1;havoc __utac_acc__Specification5_spec__2_#t~ret50#1; {1376#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:33,554 INFO L290 TraceCheckUtils]: 19: Hoare triple {1376#(not (= 2 ~waterLevel~0))} assume { :end_inline___utac_acc__Specification5_spec__2 } true; {1376#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:33,554 INFO L290 TraceCheckUtils]: 20: Hoare triple {1376#(not (= 2 ~waterLevel~0))} assume !(0 != ~pumpRunning~0); {1376#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:33,555 INFO L290 TraceCheckUtils]: 21: Hoare triple {1376#(not (= 2 ~waterLevel~0))} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret12#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; {1376#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:33,555 INFO L290 TraceCheckUtils]: 22: Hoare triple {1376#(not (= 2 ~waterLevel~0))} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret11#1, processEnvironment__wrappee__lowWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~1#1; {1376#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:33,555 INFO L290 TraceCheckUtils]: 23: Hoare triple {1376#(not (= 2 ~waterLevel~0))} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; {1376#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:33,556 INFO L290 TraceCheckUtils]: 24: Hoare triple {1376#(not (= 2 ~waterLevel~0))} assume { :end_inline_processEnvironment__wrappee__base } true; {1376#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:33,556 INFO L290 TraceCheckUtils]: 25: Hoare triple {1376#(not (= 2 ~waterLevel~0))} assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; {1376#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:33,556 INFO L290 TraceCheckUtils]: 26: Hoare triple {1376#(not (= 2 ~waterLevel~0))} assume { :end_inline_processEnvironment } true; {1376#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:33,557 INFO L290 TraceCheckUtils]: 27: Hoare triple {1376#(not (= 2 ~waterLevel~0))} assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_~tmp~8#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~8#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~2#1;havoc getWaterLevel_~retValue_acc~2#1;getWaterLevel_~retValue_acc~2#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~2#1; {1377#(not (= |ULTIMATE.start_getWaterLevel_#res#1| 2))} is VALID [2022-02-21 04:18:33,557 INFO L290 TraceCheckUtils]: 28: Hoare triple {1377#(not (= |ULTIMATE.start_getWaterLevel_#res#1| 2))} __utac_acc__Specification5_spec__3_#t~ret51#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~8#1 := __utac_acc__Specification5_spec__3_#t~ret51#1;havoc __utac_acc__Specification5_spec__3_#t~ret51#1; {1378#(not (= 2 |ULTIMATE.start___utac_acc__Specification5_spec__3_~tmp~8#1|))} is VALID [2022-02-21 04:18:33,558 INFO L290 TraceCheckUtils]: 29: Hoare triple {1378#(not (= 2 |ULTIMATE.start___utac_acc__Specification5_spec__3_~tmp~8#1|))} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~8#1); {1375#false} is VALID [2022-02-21 04:18:33,558 INFO L290 TraceCheckUtils]: 30: Hoare triple {1375#false} assume { :end_inline___utac_acc__Specification5_spec__3 } true; {1375#false} is VALID [2022-02-21 04:18:33,558 INFO L290 TraceCheckUtils]: 31: Hoare triple {1375#false} assume { :end_inline_timeShift } true; {1375#false} is VALID [2022-02-21 04:18:33,558 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 04:18:33,558 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:33,558 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245281135] [2022-02-21 04:18:33,558 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245281135] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:33,559 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:33,559 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-21 04:18:33,559 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408038294] [2022-02-21 04:18:33,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:33,695 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:33,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-21 04:18:33,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-21 04:18:33,696 INFO L87 Difference]: Start difference. First operand 291 states and 381 transitions. cyclomatic complexity: 93 Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 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 04:18:34,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:34,630 INFO L93 Difference]: Finished difference Result 1413 states and 1845 transitions. [2022-02-21 04:18:34,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-21 04:18:34,630 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), 4 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 04:18:34,658 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 04:18:34,659 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1413 states and 1845 transitions. [2022-02-21 04:18:34,724 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 962 [2022-02-21 04:18:34,780 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1413 states to 1413 states and 1845 transitions. [2022-02-21 04:18:34,780 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1413 [2022-02-21 04:18:34,781 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1413 [2022-02-21 04:18:34,781 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1413 states and 1845 transitions. [2022-02-21 04:18:34,784 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:34,784 INFO L681 BuchiCegarLoop]: Abstraction has 1413 states and 1845 transitions. [2022-02-21 04:18:34,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1413 states and 1845 transitions. [2022-02-21 04:18:34,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1413 to 568. [2022-02-21 04:18:34,799 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:34,800 INFO L82 GeneralOperation]: Start isEquivalent. First operand 1413 states and 1845 transitions. Second operand has 568 states, 568 states have (on average 1.295774647887324) internal successors, (736), 567 states have internal predecessors, (736), 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 04:18:34,801 INFO L74 IsIncluded]: Start isIncluded. First operand 1413 states and 1845 transitions. Second operand has 568 states, 568 states have (on average 1.295774647887324) internal successors, (736), 567 states have internal predecessors, (736), 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 04:18:34,802 INFO L87 Difference]: Start difference. First operand 1413 states and 1845 transitions. Second operand has 568 states, 568 states have (on average 1.295774647887324) internal successors, (736), 567 states have internal predecessors, (736), 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 04:18:34,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:34,855 INFO L93 Difference]: Finished difference Result 1413 states and 1845 transitions. [2022-02-21 04:18:34,855 INFO L276 IsEmpty]: Start isEmpty. Operand 1413 states and 1845 transitions. [2022-02-21 04:18:34,858 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:34,859 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:34,861 INFO L74 IsIncluded]: Start isIncluded. First operand has 568 states, 568 states have (on average 1.295774647887324) internal successors, (736), 567 states have internal predecessors, (736), 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 1413 states and 1845 transitions. [2022-02-21 04:18:34,862 INFO L87 Difference]: Start difference. First operand has 568 states, 568 states have (on average 1.295774647887324) internal successors, (736), 567 states have internal predecessors, (736), 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 1413 states and 1845 transitions. [2022-02-21 04:18:34,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:34,911 INFO L93 Difference]: Finished difference Result 1413 states and 1845 transitions. [2022-02-21 04:18:34,911 INFO L276 IsEmpty]: Start isEmpty. Operand 1413 states and 1845 transitions. [2022-02-21 04:18:34,913 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:34,913 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:34,913 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:34,913 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:34,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 568 states have (on average 1.295774647887324) internal successors, (736), 567 states have internal predecessors, (736), 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 04:18:34,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 736 transitions. [2022-02-21 04:18:34,926 INFO L704 BuchiCegarLoop]: Abstraction has 568 states and 736 transitions. [2022-02-21 04:18:34,926 INFO L587 BuchiCegarLoop]: Abstraction has 568 states and 736 transitions. [2022-02-21 04:18:34,926 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:18:34,926 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 568 states and 736 transitions. [2022-02-21 04:18:34,928 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 398 [2022-02-21 04:18:34,928 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:34,928 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:34,932 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:34,932 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] [2022-02-21 04:18:34,933 INFO L791 eck$LassoCheckResult]: Stem: 2976#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);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0; 2894#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 2895#L272 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2900#L265 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 2932#L280 main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 2956#L142 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 2959#L113 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 2969#L938 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet23#1, test_#t~nondet24#1, test_#t~nondet25#1, test_#t~nondet26#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2973#L506-2 [2022-02-21 04:18:34,933 INFO L793 eck$LassoCheckResult]: Loop: 2973#L506-2 assume !false; 3080#L507 assume test_~splverifierCounter~0#1 < 4; 3079#L508 test_~tmp~4#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; 3076#L516 assume !(0 != test_~tmp~4#1); 3074#L516-2 test_~tmp___0~1#1 := test_#t~nondet24#1;havoc test_#t~nondet24#1; 3072#L526 assume !(0 != test_~tmp___0~1#1); 3070#L526-2 test_~tmp___2~0#1 := test_#t~nondet25#1;havoc test_#t~nondet25#1; 3069#L536 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 3056#L492 assume { :end_inline_startSystem } true; 3068#L544-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret50#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~7#1;havoc isPumpRunning_~retValue_acc~7#1;isPumpRunning_~retValue_acc~7#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~7#1; 3153#L413 __utac_acc__Specification5_spec__2_#t~ret50#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret50#1;havoc __utac_acc__Specification5_spec__2_#t~ret50#1; 3152#L948 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 3151#L302 assume !(0 != ~pumpRunning~0); 2972#L302-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret12#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 2847#L360 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret11#1, processEnvironment__wrappee__lowWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~1#1; 2848#L334-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 2909#L326-3 assume { :end_inline_processEnvironment__wrappee__base } true; 2840#L334-3 assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 2893#L360-1 assume { :end_inline_processEnvironment } true; 2852#L309-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_~tmp~8#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~8#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~2#1;havoc getWaterLevel_~retValue_acc~2#1;getWaterLevel_~retValue_acc~2#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~2#1; 2853#L236 __utac_acc__Specification5_spec__3_#t~ret51#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~8#1 := __utac_acc__Specification5_spec__3_#t~ret51#1;havoc __utac_acc__Specification5_spec__3_#t~ret51#1; 2921#L959 assume 2 != __utac_acc__Specification5_spec__3_~tmp~8#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~7#1;havoc isPumpRunning_~retValue_acc~7#1;isPumpRunning_~retValue_acc~7#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~7#1; 2871#L413-1 __utac_acc__Specification5_spec__3_#t~ret52#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~2#1 := __utac_acc__Specification5_spec__3_#t~ret52#1;havoc __utac_acc__Specification5_spec__3_#t~ret52#1; 2872#L963 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2#1); 3083#L959-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 3082#L319 assume { :end_inline_timeShift } true; 2973#L506-2 [2022-02-21 04:18:34,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:34,933 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2022-02-21 04:18:34,934 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:34,934 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375894117] [2022-02-21 04:18:34,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:34,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:34,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:34,945 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:34,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:34,963 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:34,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:34,964 INFO L85 PathProgramCache]: Analyzing trace with hash -289667663, now seen corresponding path program 1 times [2022-02-21 04:18:34,964 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:34,964 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208914479] [2022-02-21 04:18:34,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:34,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:34,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:34,973 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:34,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:34,983 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:34,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:34,984 INFO L85 PathProgramCache]: Analyzing trace with hash 408577882, now seen corresponding path program 1 times [2022-02-21 04:18:34,984 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:34,984 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541497128] [2022-02-21 04:18:34,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:34,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:34,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:34,993 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:34,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:35,003 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:37,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:18:37 BoogieIcfgContainer [2022-02-21 04:18:37,613 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:18:37,613 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:18:37,613 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:18:37,614 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:18:37,614 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:32" (3/4) ... [2022-02-21 04:18:37,616 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:18:37,675 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:18:37,675 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:18:37,677 INFO L158 Benchmark]: Toolchain (without parser) took 6227.99ms. Allocated memory was 100.7MB in the beginning and 180.4MB in the end (delta: 79.7MB). Free memory was 67.5MB in the beginning and 132.7MB in the end (delta: -65.2MB). Peak memory consumption was 14.5MB. Max. memory is 16.1GB. [2022-02-21 04:18:37,677 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 100.7MB. Free memory is still 56.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:18:37,677 INFO L158 Benchmark]: CACSL2BoogieTranslator took 381.61ms. Allocated memory is still 100.7MB. Free memory was 67.2MB in the beginning and 64.4MB in the end (delta: 2.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-02-21 04:18:37,678 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.16ms. Allocated memory is still 100.7MB. Free memory was 64.4MB in the beginning and 60.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:18:37,678 INFO L158 Benchmark]: Boogie Preprocessor took 63.15ms. Allocated memory is still 100.7MB. Free memory was 60.3MB in the beginning and 57.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:18:37,678 INFO L158 Benchmark]: RCFGBuilder took 571.86ms. Allocated memory was 100.7MB in the beginning and 123.7MB in the end (delta: 23.1MB). Free memory was 57.8MB in the beginning and 85.6MB in the end (delta: -27.8MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. [2022-02-21 04:18:37,678 INFO L158 Benchmark]: BuchiAutomizer took 5077.05ms. Allocated memory was 123.7MB in the beginning and 180.4MB in the end (delta: 56.6MB). Free memory was 85.6MB in the beginning and 135.8MB in the end (delta: -50.1MB). Peak memory consumption was 72.5MB. Max. memory is 16.1GB. [2022-02-21 04:18:37,679 INFO L158 Benchmark]: Witness Printer took 62.21ms. Allocated memory is still 180.4MB. Free memory was 135.8MB in the beginning and 132.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:18:37,680 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 0.18ms. Allocated memory is still 100.7MB. Free memory is still 56.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 381.61ms. Allocated memory is still 100.7MB. Free memory was 67.2MB in the beginning and 64.4MB in the end (delta: 2.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.16ms. Allocated memory is still 100.7MB. Free memory was 64.4MB in the beginning and 60.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 63.15ms. Allocated memory is still 100.7MB. Free memory was 60.3MB in the beginning and 57.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 571.86ms. Allocated memory was 100.7MB in the beginning and 123.7MB in the end (delta: 23.1MB). Free memory was 57.8MB in the beginning and 85.6MB in the end (delta: -27.8MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. * BuchiAutomizer took 5077.05ms. Allocated memory was 123.7MB in the beginning and 180.4MB in the end (delta: 56.6MB). Free memory was 85.6MB in the beginning and 135.8MB in the end (delta: -50.1MB). Peak memory consumption was 72.5MB. Max. memory is 16.1GB. * Witness Printer took 62.21ms. Allocated memory is still 180.4MB. Free memory was 135.8MB in the beginning and 132.7MB 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 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 568 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.0s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 3.2s. Construction of modules took 0.1s. Büchi inclusion checks took 1.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.2s AutomataMinimizationTime, 2 MinimizatonAttempts, 848 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.1s Buchi closure took 0.0s. Biggest automaton had 568 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1107 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1107 mSDsluCounter, 1814 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1304 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 130 IncrementalHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 510 mSDtfsCounter, 130 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 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: 506]: 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, NULL=0, head=0, tmp___0=0, pumpRunning=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6ed8bf44=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7998e2bc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5115fda=0, methaneLevelCritical=0, retValue_acc=0, tmp=1, retValue_acc=1, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5ef6e85a=0, tmp___2=29, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@52b4427d=0, cleanupTimeShifts=4, switchedOnBeforeTS=0, tmp=1, \result=0, tmp___0=0, tmp=0, head=0, \result=1, retValue_acc=1, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@11c616bc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3b46a335=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@53fe18ba=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@94cee85=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5e659d18=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 506]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L50] int cleanupTimeShifts = 4; [L161] int waterLevel = 1; [L162] int methaneLevelCritical = 0; [L290] int pumpRunning = 0; [L291] int systemActive = 1; [L734] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L932] int switchedOnBeforeTS ; [L133] int retValue_acc ; [L134] int tmp ; [L138] FCALL select_helpers() [L139] FCALL select_features() [L140] CALL, EXPR valid_product() [L276] int retValue_acc ; [L279] retValue_acc = 1 [L280] return (retValue_acc); [L140] RET, EXPR valid_product() [L140] tmp = valid_product() [L142] COND TRUE \read(tmp) [L144] FCALL setup() [L145] CALL runTest() [L123] CALL __utac_acc__Specification5_spec__1() [L937] switchedOnBeforeTS = 0 [L123] RET __utac_acc__Specification5_spec__1() [L124] CALL test() [L497] int splverifierCounter ; [L498] int tmp ; [L499] int tmp___0 ; [L500] int tmp___1 ; [L501] int tmp___2 ; [L504] splverifierCounter = 0 Loop: [L506] COND TRUE 1 [L508] COND TRUE splverifierCounter < 4 [L514] tmp = __VERIFIER_nondet_int() [L516] COND FALSE !(\read(tmp)) [L524] tmp___0 = __VERIFIER_nondet_int() [L526] COND FALSE !(\read(tmp___0)) [L534] tmp___2 = __VERIFIER_nondet_int() [L536] COND TRUE \read(tmp___2) [L538] CALL startSystem() [L491] systemActive = 1 [L538] RET startSystem() [L553] CALL timeShift() [L300] CALL __utac_acc__Specification5_spec__2() [L946] CALL, EXPR isPumpRunning() [L409] int retValue_acc ; [L412] retValue_acc = pumpRunning [L413] return (retValue_acc); [L946] RET, EXPR isPumpRunning() [L946] switchedOnBeforeTS = isPumpRunning() [L300] RET __utac_acc__Specification5_spec__2() [L302] COND FALSE !(\read(pumpRunning)) [L309] COND TRUE \read(systemActive) [L311] CALL processEnvironment() [L357] int tmp ; [L360] COND FALSE !(\read(pumpRunning)) [L375] CALL processEnvironment__wrappee__lowWaterSensor() [L331] int tmp ; [L334] COND FALSE !(\read(pumpRunning)) [L349] FCALL processEnvironment__wrappee__base() [L375] RET processEnvironment__wrappee__lowWaterSensor() [L311] RET processEnvironment() [L317] CALL __utac_acc__Specification5_spec__3() [L952] int tmp ; [L953] int tmp___0 ; [L957] CALL, EXPR getWaterLevel() [L232] int retValue_acc ; [L235] retValue_acc = waterLevel [L236] return (retValue_acc); [L957] RET, EXPR getWaterLevel() [L957] tmp = getWaterLevel() [L959] COND TRUE tmp != 2 [L961] CALL, EXPR isPumpRunning() [L409] int retValue_acc ; [L412] retValue_acc = pumpRunning [L413] return (retValue_acc); [L961] RET, EXPR isPumpRunning() [L961] tmp___0 = isPumpRunning() [L963] COND FALSE !(\read(tmp___0)) [L317] RET __utac_acc__Specification5_spec__3() [L553] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:18:37,714 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, 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)