./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product36.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_product36.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 06101f936f6436bac89af152aefce31c84cfc20ba80a5adfcf1af02faa2d4f3b --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:18:40,967 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:18:40,969 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:18:41,009 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:18:41,010 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:18:41,013 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:18:41,014 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:18:41,017 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:18:41,020 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:18:41,021 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:18:41,022 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:18:41,023 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:18:41,023 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:18:41,028 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:18:41,029 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:18:41,032 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:18:41,033 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:18:41,034 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:18:41,036 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:18:41,041 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:18:41,043 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:18:41,046 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:18:41,048 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:18:41,049 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:18:41,053 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:18:41,055 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:18:41,055 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:18:41,056 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:18:41,057 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:18:41,058 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:18:41,058 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:18:41,059 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:18:41,060 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:18:41,061 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:18:41,062 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:18:41,063 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:18:41,063 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:18:41,063 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:18:41,064 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:18:41,064 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:18:41,065 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:18:41,067 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:18:41,097 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:18:41,097 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:18:41,098 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:18:41,098 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:18:41,099 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:18:41,100 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:18:41,100 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:18:41,100 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:18:41,100 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:18:41,100 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:18:41,101 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:18:41,101 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:18:41,101 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:18:41,102 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:18:41,102 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:18:41,102 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:18:41,102 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:18:41,102 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:18:41,103 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:18:41,103 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:18:41,103 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:18:41,103 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:18:41,103 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:18:41,103 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:18:41,104 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:18:41,104 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:18:41,104 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:18:41,104 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:18:41,104 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:18:41,105 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:18:41,105 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:18:41,106 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:18:41,106 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 06101f936f6436bac89af152aefce31c84cfc20ba80a5adfcf1af02faa2d4f3b [2022-02-21 04:18:41,372 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:18:41,400 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:18:41,402 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:18:41,403 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:18:41,404 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:18:41,405 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product36.cil.c [2022-02-21 04:18:41,460 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91d15089f/31466e02ff784e5581f7250fb9ecd625/FLAGa3b72cf27 [2022-02-21 04:18:41,882 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:18:41,883 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product36.cil.c [2022-02-21 04:18:41,899 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91d15089f/31466e02ff784e5581f7250fb9ecd625/FLAGa3b72cf27 [2022-02-21 04:18:41,914 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91d15089f/31466e02ff784e5581f7250fb9ecd625 [2022-02-21 04:18:41,916 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:18:41,918 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:18:41,921 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:18:41,921 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:18:41,924 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:18:41,925 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:18:41" (1/1) ... [2022-02-21 04:18:41,926 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6249f3d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:41, skipping insertion in model container [2022-02-21 04:18:41,926 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:18:41" (1/1) ... [2022-02-21 04:18:41,936 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:18:41,991 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:18:42,202 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_product36.cil.c[2141,2154] [2022-02-21 04:18:42,344 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:18:42,352 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:18:42,378 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_product36.cil.c[2141,2154] [2022-02-21 04:18:42,443 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:18:42,469 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:18:42,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:42 WrapperNode [2022-02-21 04:18:42,471 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:18:42,472 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:18:42,472 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:18:42,472 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:18:42,479 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:42" (1/1) ... [2022-02-21 04:18:42,497 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:42" (1/1) ... [2022-02-21 04:18:42,536 INFO L137 Inliner]: procedures = 56, calls = 155, calls flagged for inlining = 52, calls inlined = 57, statements flattened = 439 [2022-02-21 04:18:42,536 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:18:42,537 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:18:42,537 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:18:42,537 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:18:42,545 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:42" (1/1) ... [2022-02-21 04:18:42,545 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:42" (1/1) ... [2022-02-21 04:18:42,555 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:42" (1/1) ... [2022-02-21 04:18:42,561 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:42" (1/1) ... [2022-02-21 04:18:42,568 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:42" (1/1) ... [2022-02-21 04:18:42,584 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:42" (1/1) ... [2022-02-21 04:18:42,586 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:42" (1/1) ... [2022-02-21 04:18:42,605 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:18:42,606 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:18:42,607 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:18:42,607 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:18:42,609 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:42" (1/1) ... [2022-02-21 04:18:42,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:18:42,625 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:18:42,649 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 04:18:42,658 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 04:18:42,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:18:42,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:18:42,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:18:42,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:18:42,776 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:18:42,777 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:18:43,173 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:18:43,180 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:18:43,181 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:18:43,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:43 BoogieIcfgContainer [2022-02-21 04:18:43,184 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:18:43,185 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:18:43,186 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:18:43,189 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:18:43,189 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:43,190 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:18:41" (1/3) ... [2022-02-21 04:18:43,190 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1d4c36fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:18:43, skipping insertion in model container [2022-02-21 04:18:43,191 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:43,191 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:42" (2/3) ... [2022-02-21 04:18:43,191 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1d4c36fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:18:43, skipping insertion in model container [2022-02-21 04:18:43,191 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:43,191 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:43" (3/3) ... [2022-02-21 04:18:43,193 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product36.cil.c [2022-02-21 04:18:43,239 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:18:43,240 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:18:43,240 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:18:43,240 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:18:43,240 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:18:43,240 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:18:43,241 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:18:43,241 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:18:43,262 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 120 states, 119 states have (on average 1.3697478991596639) internal successors, (163), 119 states have internal predecessors, (163), 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 04:18:43,312 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 77 [2022-02-21 04:18:43,313 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:43,313 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:43,318 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:43,318 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 04:18:43,318 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:18:43,320 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 120 states, 119 states have (on average 1.3697478991596639) internal successors, (163), 119 states have internal predecessors, (163), 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 04:18:43,335 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 77 [2022-02-21 04:18:43,336 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:43,336 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:43,337 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:43,337 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 04:18:43,346 INFO L791 eck$LassoCheckResult]: Stem: 110#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 41#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret43#1, main_~retValue_acc~8#1, main_~tmp~6#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 57#L75true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 117#L68true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 23#L83true main_#t~ret43#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret43#1;havoc main_#t~ret43#1; 6#L810true assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 120#L785true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 85#L831true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet39#1, test_#t~nondet40#1, test_#t~nondet41#1, test_#t~nondet42#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 56#L667-2true [2022-02-21 04:18:43,347 INFO L793 eck$LassoCheckResult]: Loop: 56#L667-2true assume !false; 33#L668true assume test_~splverifierCounter~0#1 < 4; 102#L669true test_~tmp~5#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 9#L677true assume !(0 != test_~tmp~5#1); 58#L677-2true test_~tmp___0~1#1 := test_#t~nondet40#1;havoc test_#t~nondet40#1; 49#L687true assume !(0 != test_~tmp___0~1#1); 70#L687-2true test_~tmp___2~0#1 := test_#t~nondet41#1;havoc test_#t~nondet41#1; 35#L697true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 59#L284true assume { :end_inline_startSystem } true; 111#L705-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret44#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~3#1;havoc isPumpRunning_~retValue_acc~3#1;isPumpRunning_~retValue_acc~3#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~3#1; 74#L205true __utac_acc__Specification5_spec__2_#t~ret44#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret44#1;havoc __utac_acc__Specification5_spec__2_#t~ret44#1; 77#L841true assume { :end_inline___utac_acc__Specification5_spec__2 } true; 46#L120true assume !(0 != ~pumpRunning~0); 30#L120-2true assume !(0 != ~systemActive~0); 83#L127-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret45#1, __utac_acc__Specification5_spec__3_#t~ret46#1, __utac_acc__Specification5_spec__3_~tmp~7#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~7#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; 42#L949true __utac_acc__Specification5_spec__3_#t~ret45#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~7#1 := __utac_acc__Specification5_spec__3_#t~ret45#1;havoc __utac_acc__Specification5_spec__3_#t~ret45#1; 13#L852true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7#1); 101#L852-1true assume { :end_inline___utac_acc__Specification5_spec__3 } true; 61#L137true assume { :end_inline_timeShift } true; 56#L667-2true [2022-02-21 04:18:43,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:43,352 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2022-02-21 04:18:43,360 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:43,361 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370031472] [2022-02-21 04:18:43,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:43,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:43,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:43,497 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:43,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:43,562 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:43,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:43,566 INFO L85 PathProgramCache]: Analyzing trace with hash -2025351381, now seen corresponding path program 1 times [2022-02-21 04:18:43,567 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:43,567 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785651537] [2022-02-21 04:18:43,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:43,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:43,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:43,689 INFO L290 TraceCheckUtils]: 0: Hoare triple {126#true} assume !false; {126#true} is VALID [2022-02-21 04:18:43,696 INFO L290 TraceCheckUtils]: 1: Hoare triple {126#true} assume test_~splverifierCounter~0#1 < 4; {126#true} is VALID [2022-02-21 04:18:43,697 INFO L290 TraceCheckUtils]: 2: Hoare triple {126#true} test_~tmp~5#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; {126#true} is VALID [2022-02-21 04:18:43,697 INFO L290 TraceCheckUtils]: 3: Hoare triple {126#true} assume !(0 != test_~tmp~5#1); {126#true} is VALID [2022-02-21 04:18:43,697 INFO L290 TraceCheckUtils]: 4: Hoare triple {126#true} test_~tmp___0~1#1 := test_#t~nondet40#1;havoc test_#t~nondet40#1; {126#true} is VALID [2022-02-21 04:18:43,698 INFO L290 TraceCheckUtils]: 5: Hoare triple {126#true} assume !(0 != test_~tmp___0~1#1); {126#true} is VALID [2022-02-21 04:18:43,698 INFO L290 TraceCheckUtils]: 6: Hoare triple {126#true} test_~tmp___2~0#1 := test_#t~nondet41#1;havoc test_#t~nondet41#1; {126#true} is VALID [2022-02-21 04:18:43,699 INFO L290 TraceCheckUtils]: 7: Hoare triple {126#true} assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; {128#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:43,699 INFO L290 TraceCheckUtils]: 8: Hoare triple {128#(<= 1 ~systemActive~0)} assume { :end_inline_startSystem } true; {128#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:43,700 INFO L290 TraceCheckUtils]: 9: Hoare triple {128#(<= 1 ~systemActive~0)} assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret44#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~3#1;havoc isPumpRunning_~retValue_acc~3#1;isPumpRunning_~retValue_acc~3#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~3#1; {128#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:43,700 INFO L290 TraceCheckUtils]: 10: Hoare triple {128#(<= 1 ~systemActive~0)} __utac_acc__Specification5_spec__2_#t~ret44#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret44#1;havoc __utac_acc__Specification5_spec__2_#t~ret44#1; {128#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:43,701 INFO L290 TraceCheckUtils]: 11: Hoare triple {128#(<= 1 ~systemActive~0)} assume { :end_inline___utac_acc__Specification5_spec__2 } true; {128#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:43,701 INFO L290 TraceCheckUtils]: 12: Hoare triple {128#(<= 1 ~systemActive~0)} assume !(0 != ~pumpRunning~0); {128#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:43,702 INFO L290 TraceCheckUtils]: 13: Hoare triple {128#(<= 1 ~systemActive~0)} assume !(0 != ~systemActive~0); {127#false} is VALID [2022-02-21 04:18:43,702 INFO L290 TraceCheckUtils]: 14: Hoare triple {127#false} assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret45#1, __utac_acc__Specification5_spec__3_#t~ret46#1, __utac_acc__Specification5_spec__3_~tmp~7#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~7#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; {127#false} is VALID [2022-02-21 04:18:43,702 INFO L290 TraceCheckUtils]: 15: Hoare triple {127#false} __utac_acc__Specification5_spec__3_#t~ret45#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~7#1 := __utac_acc__Specification5_spec__3_#t~ret45#1;havoc __utac_acc__Specification5_spec__3_#t~ret45#1; {127#false} is VALID [2022-02-21 04:18:43,703 INFO L290 TraceCheckUtils]: 16: Hoare triple {127#false} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7#1); {127#false} is VALID [2022-02-21 04:18:43,704 INFO L290 TraceCheckUtils]: 17: Hoare triple {127#false} assume { :end_inline___utac_acc__Specification5_spec__3 } true; {127#false} is VALID [2022-02-21 04:18:43,704 INFO L290 TraceCheckUtils]: 18: Hoare triple {127#false} assume { :end_inline_timeShift } true; {127#false} is VALID [2022-02-21 04:18:43,705 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 04:18:43,706 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:43,706 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785651537] [2022-02-21 04:18:43,706 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785651537] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:43,707 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:43,707 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:18:43,707 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214928376] [2022-02-21 04:18:43,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:43,712 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:18:43,713 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:43,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:18:43,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:18:43,743 INFO L87 Difference]: Start difference. First operand has 120 states, 119 states have (on average 1.3697478991596639) internal successors, (163), 119 states have internal predecessors, (163), 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 04:18:44,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:44,015 INFO L93 Difference]: Finished difference Result 224 states and 292 transitions. [2022-02-21 04:18:44,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:18:44,017 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 04:18:44,035 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 04:18:44,041 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 224 states and 292 transitions. [2022-02-21 04:18:44,056 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 144 [2022-02-21 04:18:44,067 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 224 states to 204 states and 271 transitions. [2022-02-21 04:18:44,068 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 204 [2022-02-21 04:18:44,069 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 204 [2022-02-21 04:18:44,070 INFO L73 IsDeterministic]: Start isDeterministic. Operand 204 states and 271 transitions. [2022-02-21 04:18:44,071 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:44,071 INFO L681 BuchiCegarLoop]: Abstraction has 204 states and 271 transitions. [2022-02-21 04:18:44,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states and 271 transitions. [2022-02-21 04:18:44,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 201. [2022-02-21 04:18:44,114 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:44,121 INFO L82 GeneralOperation]: Start isEquivalent. First operand 204 states and 271 transitions. Second operand has 201 states, 201 states have (on average 1.328358208955224) internal successors, (267), 200 states have internal predecessors, (267), 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 04:18:44,122 INFO L74 IsIncluded]: Start isIncluded. First operand 204 states and 271 transitions. Second operand has 201 states, 201 states have (on average 1.328358208955224) internal successors, (267), 200 states have internal predecessors, (267), 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 04:18:44,124 INFO L87 Difference]: Start difference. First operand 204 states and 271 transitions. Second operand has 201 states, 201 states have (on average 1.328358208955224) internal successors, (267), 200 states have internal predecessors, (267), 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 04:18:44,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:44,137 INFO L93 Difference]: Finished difference Result 204 states and 271 transitions. [2022-02-21 04:18:44,138 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 271 transitions. [2022-02-21 04:18:44,143 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:44,146 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:44,147 INFO L74 IsIncluded]: Start isIncluded. First operand has 201 states, 201 states have (on average 1.328358208955224) internal successors, (267), 200 states have internal predecessors, (267), 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 204 states and 271 transitions. [2022-02-21 04:18:44,149 INFO L87 Difference]: Start difference. First operand has 201 states, 201 states have (on average 1.328358208955224) internal successors, (267), 200 states have internal predecessors, (267), 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 204 states and 271 transitions. [2022-02-21 04:18:44,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:44,156 INFO L93 Difference]: Finished difference Result 204 states and 271 transitions. [2022-02-21 04:18:44,157 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 271 transitions. [2022-02-21 04:18:44,162 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:44,162 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:44,163 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:44,167 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:44,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 201 states have (on average 1.328358208955224) internal successors, (267), 200 states have internal predecessors, (267), 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 04:18:44,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 267 transitions. [2022-02-21 04:18:44,177 INFO L704 BuchiCegarLoop]: Abstraction has 201 states and 267 transitions. [2022-02-21 04:18:44,177 INFO L587 BuchiCegarLoop]: Abstraction has 201 states and 267 transitions. [2022-02-21 04:18:44,177 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:18:44,177 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 201 states and 267 transitions. [2022-02-21 04:18:44,179 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 141 [2022-02-21 04:18:44,179 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:44,179 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:44,180 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:44,180 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] [2022-02-21 04:18:44,180 INFO L791 eck$LassoCheckResult]: Stem: 465#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 417#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret43#1, main_~retValue_acc~8#1, main_~tmp~6#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 418#L75 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 436#L68 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 390#L83 main_#t~ret43#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret43#1;havoc main_#t~ret43#1; 357#L810 assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 358#L785 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 455#L831 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet39#1, test_#t~nondet40#1, test_#t~nondet41#1, test_#t~nondet42#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 456#L667-2 [2022-02-21 04:18:44,181 INFO L793 eck$LassoCheckResult]: Loop: 456#L667-2 assume !false; 517#L668 assume test_~splverifierCounter~0#1 < 4; 518#L669 test_~tmp~5#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 552#L677 assume !(0 != test_~tmp~5#1); 550#L677-2 test_~tmp___0~1#1 := test_#t~nondet40#1;havoc test_#t~nondet40#1; 548#L687 assume !(0 != test_~tmp___0~1#1); 546#L687-2 test_~tmp___2~0#1 := test_#t~nondet41#1;havoc test_#t~nondet41#1; 545#L697 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet42#1;havoc test_#t~nondet42#1; 544#L705 assume !(0 != test_~tmp___1~0#1); 437#L705-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret44#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~3#1;havoc isPumpRunning_~retValue_acc~3#1;isPumpRunning_~retValue_acc~3#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~3#1; 542#L205 __utac_acc__Specification5_spec__2_#t~ret44#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret44#1;havoc __utac_acc__Specification5_spec__2_#t~ret44#1; 540#L841 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 537#L120 assume !(0 != ~pumpRunning~0); 534#L120-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~0#1;havoc processEnvironment_~tmp~0#1; 531#L152 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 530#L144-1 assume { :end_inline_processEnvironment__wrappee__base } true; 527#L152-1 assume { :end_inline_processEnvironment } true; 526#L127-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret45#1, __utac_acc__Specification5_spec__3_#t~ret46#1, __utac_acc__Specification5_spec__3_~tmp~7#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~7#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; 525#L949 __utac_acc__Specification5_spec__3_#t~ret45#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~7#1 := __utac_acc__Specification5_spec__3_#t~ret45#1;havoc __utac_acc__Specification5_spec__3_#t~ret45#1; 523#L852 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7#1); 520#L852-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 519#L137 assume { :end_inline_timeShift } true; 456#L667-2 [2022-02-21 04:18:44,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:44,182 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2022-02-21 04:18:44,182 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:44,183 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397737369] [2022-02-21 04:18:44,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:44,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:44,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:44,211 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:44,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:44,246 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:44,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:44,249 INFO L85 PathProgramCache]: Analyzing trace with hash 886706381, now seen corresponding path program 1 times [2022-02-21 04:18:44,249 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:44,250 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087932897] [2022-02-21 04:18:44,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:44,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:44,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:44,282 INFO L290 TraceCheckUtils]: 0: Hoare triple {967#true} assume !false; {967#true} is VALID [2022-02-21 04:18:44,283 INFO L290 TraceCheckUtils]: 1: Hoare triple {967#true} assume test_~splverifierCounter~0#1 < 4; {967#true} is VALID [2022-02-21 04:18:44,283 INFO L290 TraceCheckUtils]: 2: Hoare triple {967#true} test_~tmp~5#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; {967#true} is VALID [2022-02-21 04:18:44,283 INFO L290 TraceCheckUtils]: 3: Hoare triple {967#true} assume !(0 != test_~tmp~5#1); {967#true} is VALID [2022-02-21 04:18:44,283 INFO L290 TraceCheckUtils]: 4: Hoare triple {967#true} test_~tmp___0~1#1 := test_#t~nondet40#1;havoc test_#t~nondet40#1; {967#true} is VALID [2022-02-21 04:18:44,284 INFO L290 TraceCheckUtils]: 5: Hoare triple {967#true} assume !(0 != test_~tmp___0~1#1); {967#true} is VALID [2022-02-21 04:18:44,284 INFO L290 TraceCheckUtils]: 6: Hoare triple {967#true} test_~tmp___2~0#1 := test_#t~nondet41#1;havoc test_#t~nondet41#1; {967#true} is VALID [2022-02-21 04:18:44,284 INFO L290 TraceCheckUtils]: 7: Hoare triple {967#true} assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet42#1;havoc test_#t~nondet42#1; {967#true} is VALID [2022-02-21 04:18:44,284 INFO L290 TraceCheckUtils]: 8: Hoare triple {967#true} assume !(0 != test_~tmp___1~0#1); {967#true} is VALID [2022-02-21 04:18:44,285 INFO L290 TraceCheckUtils]: 9: Hoare triple {967#true} assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret44#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~3#1;havoc isPumpRunning_~retValue_acc~3#1;isPumpRunning_~retValue_acc~3#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~3#1; {967#true} is VALID [2022-02-21 04:18:44,285 INFO L290 TraceCheckUtils]: 10: Hoare triple {967#true} __utac_acc__Specification5_spec__2_#t~ret44#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret44#1;havoc __utac_acc__Specification5_spec__2_#t~ret44#1; {967#true} is VALID [2022-02-21 04:18:44,285 INFO L290 TraceCheckUtils]: 11: Hoare triple {967#true} assume { :end_inline___utac_acc__Specification5_spec__2 } true; {967#true} is VALID [2022-02-21 04:18:44,286 INFO L290 TraceCheckUtils]: 12: Hoare triple {967#true} assume !(0 != ~pumpRunning~0); {969#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:18:44,286 INFO L290 TraceCheckUtils]: 13: Hoare triple {969#(= ~pumpRunning~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~0#1;havoc processEnvironment_~tmp~0#1; {969#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:18:44,286 INFO L290 TraceCheckUtils]: 14: Hoare triple {969#(= ~pumpRunning~0 0)} assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; {968#false} is VALID [2022-02-21 04:18:44,287 INFO L290 TraceCheckUtils]: 15: Hoare triple {968#false} assume { :end_inline_processEnvironment__wrappee__base } true; {968#false} is VALID [2022-02-21 04:18:44,287 INFO L290 TraceCheckUtils]: 16: Hoare triple {968#false} assume { :end_inline_processEnvironment } true; {968#false} is VALID [2022-02-21 04:18:44,287 INFO L290 TraceCheckUtils]: 17: Hoare triple {968#false} assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret45#1, __utac_acc__Specification5_spec__3_#t~ret46#1, __utac_acc__Specification5_spec__3_~tmp~7#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~7#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; {968#false} is VALID [2022-02-21 04:18:44,287 INFO L290 TraceCheckUtils]: 18: Hoare triple {968#false} __utac_acc__Specification5_spec__3_#t~ret45#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~7#1 := __utac_acc__Specification5_spec__3_#t~ret45#1;havoc __utac_acc__Specification5_spec__3_#t~ret45#1; {968#false} is VALID [2022-02-21 04:18:44,288 INFO L290 TraceCheckUtils]: 19: Hoare triple {968#false} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7#1); {968#false} is VALID [2022-02-21 04:18:44,288 INFO L290 TraceCheckUtils]: 20: Hoare triple {968#false} assume { :end_inline___utac_acc__Specification5_spec__3 } true; {968#false} is VALID [2022-02-21 04:18:44,288 INFO L290 TraceCheckUtils]: 21: Hoare triple {968#false} assume { :end_inline_timeShift } true; {968#false} is VALID [2022-02-21 04:18:44,288 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 04:18:44,289 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:44,289 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087932897] [2022-02-21 04:18:44,289 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087932897] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:44,289 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:44,289 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:18:44,290 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141209952] [2022-02-21 04:18:44,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:44,290 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:18:44,290 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:44,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:18:44,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:18:44,291 INFO L87 Difference]: Start difference. First operand 201 states and 267 transitions. cyclomatic complexity: 69 Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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 04:18:44,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:44,500 INFO L93 Difference]: Finished difference Result 325 states and 420 transitions. [2022-02-21 04:18:44,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:18:44,501 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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 04:18:44,521 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 22 edges. 22 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:18:44,522 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 325 states and 420 transitions. [2022-02-21 04:18:44,535 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 235 [2022-02-21 04:18:44,559 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 325 states to 325 states and 420 transitions. [2022-02-21 04:18:44,560 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 325 [2022-02-21 04:18:44,560 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 325 [2022-02-21 04:18:44,560 INFO L73 IsDeterministic]: Start isDeterministic. Operand 325 states and 420 transitions. [2022-02-21 04:18:44,561 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:44,561 INFO L681 BuchiCegarLoop]: Abstraction has 325 states and 420 transitions. [2022-02-21 04:18:44,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states and 420 transitions. [2022-02-21 04:18:44,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 325. [2022-02-21 04:18:44,572 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:44,573 INFO L82 GeneralOperation]: Start isEquivalent. First operand 325 states and 420 transitions. Second operand has 325 states, 325 states have (on average 1.2923076923076924) internal successors, (420), 324 states have internal predecessors, (420), 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 04:18:44,573 INFO L74 IsIncluded]: Start isIncluded. First operand 325 states and 420 transitions. Second operand has 325 states, 325 states have (on average 1.2923076923076924) internal successors, (420), 324 states have internal predecessors, (420), 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 04:18:44,574 INFO L87 Difference]: Start difference. First operand 325 states and 420 transitions. Second operand has 325 states, 325 states have (on average 1.2923076923076924) internal successors, (420), 324 states have internal predecessors, (420), 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 04:18:44,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:44,586 INFO L93 Difference]: Finished difference Result 325 states and 420 transitions. [2022-02-21 04:18:44,587 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 420 transitions. [2022-02-21 04:18:44,587 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:44,587 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:44,588 INFO L74 IsIncluded]: Start isIncluded. First operand has 325 states, 325 states have (on average 1.2923076923076924) internal successors, (420), 324 states have internal predecessors, (420), 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 325 states and 420 transitions. [2022-02-21 04:18:44,589 INFO L87 Difference]: Start difference. First operand has 325 states, 325 states have (on average 1.2923076923076924) internal successors, (420), 324 states have internal predecessors, (420), 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 325 states and 420 transitions. [2022-02-21 04:18:44,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:44,602 INFO L93 Difference]: Finished difference Result 325 states and 420 transitions. [2022-02-21 04:18:44,603 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 420 transitions. [2022-02-21 04:18:44,603 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:44,603 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:44,603 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:44,604 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:44,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 325 states have (on average 1.2923076923076924) internal successors, (420), 324 states have internal predecessors, (420), 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 04:18:44,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 420 transitions. [2022-02-21 04:18:44,616 INFO L704 BuchiCegarLoop]: Abstraction has 325 states and 420 transitions. [2022-02-21 04:18:44,616 INFO L587 BuchiCegarLoop]: Abstraction has 325 states and 420 transitions. [2022-02-21 04:18:44,616 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:18:44,617 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 325 states and 420 transitions. [2022-02-21 04:18:44,619 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 235 [2022-02-21 04:18:44,619 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:44,620 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:44,621 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:44,621 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:44,622 INFO L791 eck$LassoCheckResult]: Stem: 1429#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 1362#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret43#1, main_~retValue_acc~8#1, main_~tmp~6#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 1363#L75 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1382#L68 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 1331#L83 main_#t~ret43#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret43#1;havoc main_#t~ret43#1; 1299#L810 assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 1300#L785 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 1409#L831 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet39#1, test_#t~nondet40#1, test_#t~nondet41#1, test_#t~nondet42#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1410#L667-2 [2022-02-21 04:18:44,622 INFO L793 eck$LassoCheckResult]: Loop: 1410#L667-2 assume !false; 1466#L668 assume test_~splverifierCounter~0#1 < 4; 1467#L669 test_~tmp~5#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 1459#L677 assume !(0 != test_~tmp~5#1); 1383#L677-2 test_~tmp___0~1#1 := test_#t~nondet40#1;havoc test_#t~nondet40#1; 1371#L687 assume !(0 != test_~tmp___0~1#1); 1368#L687-2 test_~tmp___2~0#1 := test_#t~nondet41#1;havoc test_#t~nondet41#1; 1391#L697 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 1354#L284 assume { :end_inline_startSystem } true; 1386#L705-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret44#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~3#1;havoc isPumpRunning_~retValue_acc~3#1;isPumpRunning_~retValue_acc~3#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~3#1; 1394#L205 __utac_acc__Specification5_spec__2_#t~ret44#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret44#1;havoc __utac_acc__Specification5_spec__2_#t~ret44#1; 1395#L841 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 1399#L120 assume !(0 != ~pumpRunning~0); 1496#L120-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~0#1;havoc processEnvironment_~tmp~0#1; 1520#L152 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret15#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~1#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~4#1;havoc isHighWaterLevel_~tmp~1#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~11#1;havoc isHighWaterSensorDry_~retValue_acc~11#1; 1513#L957 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~11#1; 1519#L962 isHighWaterLevel_#t~ret15#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~1#1 := isHighWaterLevel_#t~ret15#1;havoc isHighWaterLevel_#t~ret15#1; 1518#L254 assume 0 != isHighWaterLevel_~tmp~1#1;isHighWaterLevel_~tmp___0~0#1 := 0; 1517#L254-2 isHighWaterLevel_~retValue_acc~4#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1; 1516#L260 processEnvironment_#t~ret5#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~0#1 := processEnvironment_#t~ret5#1;havoc processEnvironment_#t~ret5#1; 1514#L156 assume !(0 != processEnvironment_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1515#L144 assume { :end_inline_processEnvironment__wrappee__base } true; 1544#L152-1 assume { :end_inline_processEnvironment } true; 1543#L127-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret45#1, __utac_acc__Specification5_spec__3_#t~ret46#1, __utac_acc__Specification5_spec__3_~tmp~7#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~7#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; 1542#L949 __utac_acc__Specification5_spec__3_#t~ret45#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~7#1 := __utac_acc__Specification5_spec__3_#t~ret45#1;havoc __utac_acc__Specification5_spec__3_#t~ret45#1; 1482#L852 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7#1); 1480#L852-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 1473#L137 assume { :end_inline_timeShift } true; 1410#L667-2 [2022-02-21 04:18:44,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:44,623 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2022-02-21 04:18:44,623 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:44,624 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237484346] [2022-02-21 04:18:44,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:44,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:44,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:44,652 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:44,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:44,671 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:44,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:44,672 INFO L85 PathProgramCache]: Analyzing trace with hash 1533043459, now seen corresponding path program 1 times [2022-02-21 04:18:44,672 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:44,673 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122993474] [2022-02-21 04:18:44,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:44,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:44,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:44,748 INFO L290 TraceCheckUtils]: 0: Hoare triple {2275#true} assume !false; {2275#true} is VALID [2022-02-21 04:18:44,748 INFO L290 TraceCheckUtils]: 1: Hoare triple {2275#true} assume test_~splverifierCounter~0#1 < 4; {2275#true} is VALID [2022-02-21 04:18:44,748 INFO L290 TraceCheckUtils]: 2: Hoare triple {2275#true} test_~tmp~5#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; {2275#true} is VALID [2022-02-21 04:18:44,748 INFO L290 TraceCheckUtils]: 3: Hoare triple {2275#true} assume !(0 != test_~tmp~5#1); {2275#true} is VALID [2022-02-21 04:18:44,749 INFO L290 TraceCheckUtils]: 4: Hoare triple {2275#true} test_~tmp___0~1#1 := test_#t~nondet40#1;havoc test_#t~nondet40#1; {2275#true} is VALID [2022-02-21 04:18:44,749 INFO L290 TraceCheckUtils]: 5: Hoare triple {2275#true} assume !(0 != test_~tmp___0~1#1); {2275#true} is VALID [2022-02-21 04:18:44,749 INFO L290 TraceCheckUtils]: 6: Hoare triple {2275#true} test_~tmp___2~0#1 := test_#t~nondet41#1;havoc test_#t~nondet41#1; {2275#true} is VALID [2022-02-21 04:18:44,749 INFO L290 TraceCheckUtils]: 7: Hoare triple {2275#true} assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; {2275#true} is VALID [2022-02-21 04:18:44,749 INFO L290 TraceCheckUtils]: 8: Hoare triple {2275#true} assume { :end_inline_startSystem } true; {2275#true} is VALID [2022-02-21 04:18:44,750 INFO L290 TraceCheckUtils]: 9: Hoare triple {2275#true} assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret44#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~3#1;havoc isPumpRunning_~retValue_acc~3#1;isPumpRunning_~retValue_acc~3#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~3#1; {2275#true} is VALID [2022-02-21 04:18:44,750 INFO L290 TraceCheckUtils]: 10: Hoare triple {2275#true} __utac_acc__Specification5_spec__2_#t~ret44#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret44#1;havoc __utac_acc__Specification5_spec__2_#t~ret44#1; {2275#true} is VALID [2022-02-21 04:18:44,750 INFO L290 TraceCheckUtils]: 11: Hoare triple {2275#true} assume { :end_inline___utac_acc__Specification5_spec__2 } true; {2275#true} is VALID [2022-02-21 04:18:44,750 INFO L290 TraceCheckUtils]: 12: Hoare triple {2275#true} assume !(0 != ~pumpRunning~0); {2275#true} is VALID [2022-02-21 04:18:44,751 INFO L290 TraceCheckUtils]: 13: Hoare triple {2275#true} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~0#1;havoc processEnvironment_~tmp~0#1; {2275#true} is VALID [2022-02-21 04:18:44,751 INFO L290 TraceCheckUtils]: 14: Hoare triple {2275#true} assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret15#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~1#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~4#1;havoc isHighWaterLevel_~tmp~1#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~11#1;havoc isHighWaterSensorDry_~retValue_acc~11#1; {2275#true} is VALID [2022-02-21 04:18:44,751 INFO L290 TraceCheckUtils]: 15: Hoare triple {2275#true} assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~11#1; {2277#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:44,752 INFO L290 TraceCheckUtils]: 16: Hoare triple {2277#(not (= 2 ~waterLevel~0))} isHighWaterLevel_#t~ret15#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~1#1 := isHighWaterLevel_#t~ret15#1;havoc isHighWaterLevel_#t~ret15#1; {2277#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:44,752 INFO L290 TraceCheckUtils]: 17: Hoare triple {2277#(not (= 2 ~waterLevel~0))} assume 0 != isHighWaterLevel_~tmp~1#1;isHighWaterLevel_~tmp___0~0#1 := 0; {2277#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:44,753 INFO L290 TraceCheckUtils]: 18: Hoare triple {2277#(not (= 2 ~waterLevel~0))} isHighWaterLevel_~retValue_acc~4#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1; {2277#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:44,753 INFO L290 TraceCheckUtils]: 19: Hoare triple {2277#(not (= 2 ~waterLevel~0))} processEnvironment_#t~ret5#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~0#1 := processEnvironment_#t~ret5#1;havoc processEnvironment_#t~ret5#1; {2277#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:44,754 INFO L290 TraceCheckUtils]: 20: Hoare triple {2277#(not (= 2 ~waterLevel~0))} assume !(0 != processEnvironment_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; {2277#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:44,754 INFO L290 TraceCheckUtils]: 21: Hoare triple {2277#(not (= 2 ~waterLevel~0))} assume { :end_inline_processEnvironment__wrappee__base } true; {2277#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:44,755 INFO L290 TraceCheckUtils]: 22: Hoare triple {2277#(not (= 2 ~waterLevel~0))} assume { :end_inline_processEnvironment } true; {2277#(not (= 2 ~waterLevel~0))} is VALID [2022-02-21 04:18:44,755 INFO L290 TraceCheckUtils]: 23: Hoare triple {2277#(not (= 2 ~waterLevel~0))} assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret45#1, __utac_acc__Specification5_spec__3_#t~ret46#1, __utac_acc__Specification5_spec__3_~tmp~7#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~7#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; {2278#(not (= |ULTIMATE.start_getWaterLevel_#res#1| 2))} is VALID [2022-02-21 04:18:44,756 INFO L290 TraceCheckUtils]: 24: Hoare triple {2278#(not (= |ULTIMATE.start_getWaterLevel_#res#1| 2))} __utac_acc__Specification5_spec__3_#t~ret45#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~7#1 := __utac_acc__Specification5_spec__3_#t~ret45#1;havoc __utac_acc__Specification5_spec__3_#t~ret45#1; {2279#(not (= 2 |ULTIMATE.start___utac_acc__Specification5_spec__3_~tmp~7#1|))} is VALID [2022-02-21 04:18:44,756 INFO L290 TraceCheckUtils]: 25: Hoare triple {2279#(not (= 2 |ULTIMATE.start___utac_acc__Specification5_spec__3_~tmp~7#1|))} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7#1); {2276#false} is VALID [2022-02-21 04:18:44,756 INFO L290 TraceCheckUtils]: 26: Hoare triple {2276#false} assume { :end_inline___utac_acc__Specification5_spec__3 } true; {2276#false} is VALID [2022-02-21 04:18:44,757 INFO L290 TraceCheckUtils]: 27: Hoare triple {2276#false} assume { :end_inline_timeShift } true; {2276#false} is VALID [2022-02-21 04:18:44,757 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 04:18:44,757 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:44,757 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122993474] [2022-02-21 04:18:44,758 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122993474] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:44,758 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:44,758 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:18:44,758 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131342577] [2022-02-21 04:18:44,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:44,759 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:18:44,759 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:44,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-21 04:18:44,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-21 04:18:44,760 INFO L87 Difference]: Start difference. First operand 325 states and 420 transitions. cyclomatic complexity: 98 Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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 04:18:45,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:45,617 INFO L93 Difference]: Finished difference Result 1283 states and 1643 transitions. [2022-02-21 04:18:45,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-21 04:18:45,617 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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 04:18:45,643 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 28 edges. 28 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:18:45,644 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1283 states and 1643 transitions. [2022-02-21 04:18:45,718 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 918 [2022-02-21 04:18:45,790 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1283 states to 1283 states and 1643 transitions. [2022-02-21 04:18:45,791 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1283 [2022-02-21 04:18:45,792 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1283 [2022-02-21 04:18:45,792 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1283 states and 1643 transitions. [2022-02-21 04:18:45,794 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:45,794 INFO L681 BuchiCegarLoop]: Abstraction has 1283 states and 1643 transitions. [2022-02-21 04:18:45,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1283 states and 1643 transitions. [2022-02-21 04:18:45,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1283 to 636. [2022-02-21 04:18:45,817 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:45,819 INFO L82 GeneralOperation]: Start isEquivalent. First operand 1283 states and 1643 transitions. Second operand has 636 states, 636 states have (on average 1.270440251572327) internal successors, (808), 635 states have internal predecessors, (808), 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 04:18:45,820 INFO L74 IsIncluded]: Start isIncluded. First operand 1283 states and 1643 transitions. Second operand has 636 states, 636 states have (on average 1.270440251572327) internal successors, (808), 635 states have internal predecessors, (808), 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 04:18:45,822 INFO L87 Difference]: Start difference. First operand 1283 states and 1643 transitions. Second operand has 636 states, 636 states have (on average 1.270440251572327) internal successors, (808), 635 states have internal predecessors, (808), 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 04:18:45,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:45,877 INFO L93 Difference]: Finished difference Result 1283 states and 1643 transitions. [2022-02-21 04:18:45,877 INFO L276 IsEmpty]: Start isEmpty. Operand 1283 states and 1643 transitions. [2022-02-21 04:18:45,879 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:45,879 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:45,881 INFO L74 IsIncluded]: Start isIncluded. First operand has 636 states, 636 states have (on average 1.270440251572327) internal successors, (808), 635 states have internal predecessors, (808), 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 1283 states and 1643 transitions. [2022-02-21 04:18:45,883 INFO L87 Difference]: Start difference. First operand has 636 states, 636 states have (on average 1.270440251572327) internal successors, (808), 635 states have internal predecessors, (808), 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 1283 states and 1643 transitions. [2022-02-21 04:18:45,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:45,947 INFO L93 Difference]: Finished difference Result 1283 states and 1643 transitions. [2022-02-21 04:18:45,948 INFO L276 IsEmpty]: Start isEmpty. Operand 1283 states and 1643 transitions. [2022-02-21 04:18:45,949 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:45,950 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:45,950 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:45,950 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:45,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 636 states, 636 states have (on average 1.270440251572327) internal successors, (808), 635 states have internal predecessors, (808), 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 04:18:45,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 808 transitions. [2022-02-21 04:18:45,971 INFO L704 BuchiCegarLoop]: Abstraction has 636 states and 808 transitions. [2022-02-21 04:18:45,971 INFO L587 BuchiCegarLoop]: Abstraction has 636 states and 808 transitions. [2022-02-21 04:18:45,971 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2022-02-21 04:18:45,971 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 636 states and 808 transitions. [2022-02-21 04:18:45,975 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 466 [2022-02-21 04:18:45,975 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:45,975 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:45,976 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:45,976 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:45,976 INFO L791 eck$LassoCheckResult]: Stem: 3714#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(3, 5);call write~init~int(79, 5, 0, 1);call write~init~int(110, 5, 1, 1);call write~init~int(0, 5, 2, 1);call #Ultimate.allocInit(4, 6);call write~init~int(79, 6, 0, 1);call write~init~int(102, 6, 1, 1);call write~init~int(102, 6, 2, 1);call write~init~int(0, 6, 3, 1);call #Ultimate.allocInit(7, 7);call write~init~int(44, 7, 0, 1);call write~init~int(80, 7, 1, 1);call write~init~int(117, 7, 2, 1);call write~init~int(109, 7, 3, 1);call write~init~int(112, 7, 4, 1);call write~init~int(58, 7, 5, 1);call write~init~int(0, 7, 6, 1);call #Ultimate.allocInit(3, 8);call write~init~int(79, 8, 0, 1);call write~init~int(110, 8, 1, 1);call write~init~int(0, 8, 2, 1);call #Ultimate.allocInit(4, 9);call write~init~int(79, 9, 0, 1);call write~init~int(102, 9, 1, 1);call write~init~int(102, 9, 2, 1);call write~init~int(0, 9, 3, 1);call #Ultimate.allocInit(3, 10);call write~init~int(41, 10, 0, 1);call write~init~int(32, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(2, 11);call write~init~int(10, 11, 0, 1);call write~init~int(0, 11, 1, 1);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(21, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(30, 21);call #Ultimate.allocInit(9, 22);call #Ultimate.allocInit(25, 23);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 3647#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret43#1, main_~retValue_acc~8#1, main_~tmp~6#1;havoc main_~retValue_acc~8#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 3648#L75 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 3668#L68 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 3614#L83 main_#t~ret43#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret43#1;havoc main_#t~ret43#1; 3579#L810 assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 3580#L785 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 3695#L831 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet39#1, test_#t~nondet40#1, test_#t~nondet41#1, test_#t~nondet42#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 3696#L667-2 [2022-02-21 04:18:45,977 INFO L793 eck$LassoCheckResult]: Loop: 3696#L667-2 assume !false; 3944#L668 assume test_~splverifierCounter~0#1 < 4; 3943#L669 test_~tmp~5#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 3941#L677 assume !(0 != test_~tmp~5#1); 3939#L677-2 test_~tmp___0~1#1 := test_#t~nondet40#1;havoc test_#t~nondet40#1; 3937#L687 assume !(0 != test_~tmp___0~1#1); 3935#L687-2 test_~tmp___2~0#1 := test_#t~nondet41#1;havoc test_#t~nondet41#1; 3915#L697 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 3910#L284 assume { :end_inline_startSystem } true; 3909#L705-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret44#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~3#1;havoc isPumpRunning_~retValue_acc~3#1;isPumpRunning_~retValue_acc~3#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~3#1; 3908#L205 __utac_acc__Specification5_spec__2_#t~ret44#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret44#1;havoc __utac_acc__Specification5_spec__2_#t~ret44#1; 3907#L841 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 3906#L120 assume !(0 != ~pumpRunning~0); 3735#L120-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~0#1;havoc processEnvironment_~tmp~0#1; 3905#L152 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret15#1, isHighWaterLevel_~retValue_acc~4#1, isHighWaterLevel_~tmp~1#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~4#1;havoc isHighWaterLevel_~tmp~1#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~11#1;havoc isHighWaterSensorDry_~retValue_acc~11#1; 3842#L957 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~11#1; 3852#L962 isHighWaterLevel_#t~ret15#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~1#1 := isHighWaterLevel_#t~ret15#1;havoc isHighWaterLevel_#t~ret15#1; 3849#L254 assume 0 != isHighWaterLevel_~tmp~1#1;isHighWaterLevel_~tmp___0~0#1 := 0; 3846#L254-2 isHighWaterLevel_~retValue_acc~4#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~4#1; 3843#L260 processEnvironment_#t~ret5#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~0#1 := processEnvironment_#t~ret5#1;havoc processEnvironment_#t~ret5#1; 3836#L156 assume !(0 != processEnvironment_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 3837#L144 assume { :end_inline_processEnvironment__wrappee__base } true; 3953#L152-1 assume { :end_inline_processEnvironment } true; 3952#L127-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret45#1, __utac_acc__Specification5_spec__3_#t~ret46#1, __utac_acc__Specification5_spec__3_~tmp~7#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~7#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; 3951#L949 __utac_acc__Specification5_spec__3_#t~ret45#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~7#1 := __utac_acc__Specification5_spec__3_#t~ret45#1;havoc __utac_acc__Specification5_spec__3_#t~ret45#1; 3950#L852 assume 2 != __utac_acc__Specification5_spec__3_~tmp~7#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~3#1;havoc isPumpRunning_~retValue_acc~3#1;isPumpRunning_~retValue_acc~3#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~3#1; 3949#L205-1 __utac_acc__Specification5_spec__3_#t~ret46#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~2#1 := __utac_acc__Specification5_spec__3_#t~ret46#1;havoc __utac_acc__Specification5_spec__3_#t~ret46#1; 3948#L856 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2#1); 3946#L852-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 3945#L137 assume { :end_inline_timeShift } true; 3696#L667-2 [2022-02-21 04:18:45,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:45,977 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2022-02-21 04:18:45,977 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:45,978 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501388608] [2022-02-21 04:18:45,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:45,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:45,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:45,993 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:46,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:46,005 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:46,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:46,006 INFO L85 PathProgramCache]: Analyzing trace with hash 61883486, now seen corresponding path program 1 times [2022-02-21 04:18:46,006 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:46,006 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526056012] [2022-02-21 04:18:46,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:46,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:46,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:46,014 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:46,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:46,023 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:46,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:46,025 INFO L85 PathProgramCache]: Analyzing trace with hash -1903974009, now seen corresponding path program 1 times [2022-02-21 04:18:46,025 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:46,025 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49327373] [2022-02-21 04:18:46,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:46,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:46,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:46,042 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:46,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:46,058 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:49,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:18:49 BoogieIcfgContainer [2022-02-21 04:18:49,338 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:18:49,338 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:18:49,339 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:18:49,339 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:18:49,339 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:43" (3/4) ... [2022-02-21 04:18:49,341 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:18:49,439 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:18:49,439 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:18:49,440 INFO L158 Benchmark]: Toolchain (without parser) took 7521.94ms. Allocated memory was 88.1MB in the beginning and 138.4MB in the end (delta: 50.3MB). Free memory was 48.6MB in the beginning and 58.0MB in the end (delta: -9.4MB). Peak memory consumption was 42.2MB. Max. memory is 16.1GB. [2022-02-21 04:18:49,441 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 88.1MB. Free memory is still 66.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:18:49,441 INFO L158 Benchmark]: CACSL2BoogieTranslator took 550.02ms. Allocated memory was 88.1MB in the beginning and 115.3MB in the end (delta: 27.3MB). Free memory was 48.4MB in the beginning and 78.7MB in the end (delta: -30.3MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. [2022-02-21 04:18:49,442 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.43ms. Allocated memory is still 115.3MB. Free memory was 78.7MB in the beginning and 75.1MB in the end (delta: 3.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:18:49,443 INFO L158 Benchmark]: Boogie Preprocessor took 68.76ms. Allocated memory is still 115.3MB. Free memory was 75.1MB in the beginning and 73.3MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:18:49,444 INFO L158 Benchmark]: RCFGBuilder took 578.21ms. Allocated memory is still 115.3MB. Free memory was 73.0MB in the beginning and 52.1MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-02-21 04:18:49,444 INFO L158 Benchmark]: BuchiAutomizer took 6152.50ms. Allocated memory was 115.3MB in the beginning and 138.4MB in the end (delta: 23.1MB). Free memory was 51.6MB in the beginning and 60.1MB in the end (delta: -8.5MB). Peak memory consumption was 43.7MB. Max. memory is 16.1GB. [2022-02-21 04:18:49,447 INFO L158 Benchmark]: Witness Printer took 100.53ms. Allocated memory is still 138.4MB. Free memory was 60.1MB in the beginning and 58.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:18:49,450 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 0.23ms. Allocated memory is still 88.1MB. Free memory is still 66.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 550.02ms. Allocated memory was 88.1MB in the beginning and 115.3MB in the end (delta: 27.3MB). Free memory was 48.4MB in the beginning and 78.7MB in the end (delta: -30.3MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.43ms. Allocated memory is still 115.3MB. Free memory was 78.7MB in the beginning and 75.1MB in the end (delta: 3.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 68.76ms. Allocated memory is still 115.3MB. Free memory was 75.1MB in the beginning and 73.3MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 578.21ms. Allocated memory is still 115.3MB. Free memory was 73.0MB in the beginning and 52.1MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * BuchiAutomizer took 6152.50ms. Allocated memory was 115.3MB in the beginning and 138.4MB in the end (delta: 23.1MB). Free memory was 51.6MB in the beginning and 60.1MB in the end (delta: -8.5MB). Peak memory consumption was 43.7MB. Max. memory is 16.1GB. * Witness Printer took 100.53ms. Allocated memory is still 138.4MB. Free memory was 60.1MB in the beginning and 58.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 636 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.0s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 3.9s. Construction of modules took 0.1s. Büchi inclusion checks took 1.2s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.3s AutomataMinimizationTime, 3 MinimizatonAttempts, 650 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.2s Buchi closure took 0.0s. Biggest automaton had 636 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 856 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 856 mSDsluCounter, 1422 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 891 mSDsCounter, 43 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 136 IncrementalHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 43 mSolverCounterUnsat, 531 mSDtfsCounter, 136 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc0 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: 667]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@59cbd252=0, tmp___0=0, NULL=0, head=0, tmp___0=0, pumpRunning=0, NULL=1, retValue_acc=0, methaneLevelCritical=0, retValue_acc=1, tmp=1, retValue_acc=1, retValue_acc=1, \result=1, retValue_acc=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@495e412e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@33b54396=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2477e7e5=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@47232c92=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@57ce49e2=0, tmp___2=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@41d1a234=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@38838542=0, \result=0, tmp=1, cleanupTimeShifts=4, switchedOnBeforeTS=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4a4763b8=0, \result=0, tmp=0, tmp___0=0, head=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1469f66c=0, \result=1, retValue_acc=0, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, tmp=0, \result=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 667]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L108] int pumpRunning = 0; [L109] int systemActive = 1; [L457] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L726] int cleanupTimeShifts = 4; [L825] int switchedOnBeforeTS ; [L874] int waterLevel = 1; [L875] int methaneLevelCritical = 0; [L801] int retValue_acc ; [L802] int tmp ; [L806] FCALL select_helpers() [L807] FCALL select_features() [L808] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); [L808] RET, EXPR valid_product() [L808] tmp = valid_product() [L810] COND TRUE \read(tmp) [L812] FCALL setup() [L813] CALL runTest() [L794] CALL __utac_acc__Specification5_spec__1() [L830] switchedOnBeforeTS = 0 [L794] RET __utac_acc__Specification5_spec__1() [L795] CALL test() [L658] int splverifierCounter ; [L659] int tmp ; [L660] int tmp___0 ; [L661] int tmp___1 ; [L662] int tmp___2 ; [L665] splverifierCounter = 0 Loop: [L667] COND TRUE 1 [L669] COND TRUE splverifierCounter < 4 [L675] tmp = __VERIFIER_nondet_int() [L677] COND FALSE !(\read(tmp)) [L685] tmp___0 = __VERIFIER_nondet_int() [L687] COND FALSE !(\read(tmp___0)) [L695] tmp___2 = __VERIFIER_nondet_int() [L697] COND TRUE \read(tmp___2) [L699] CALL startSystem() [L283] systemActive = 1 [L699] RET startSystem() [L714] CALL timeShift() [L118] CALL __utac_acc__Specification5_spec__2() [L839] CALL, EXPR isPumpRunning() [L201] int retValue_acc ; [L204] retValue_acc = pumpRunning [L205] return (retValue_acc); [L839] RET, EXPR isPumpRunning() [L839] switchedOnBeforeTS = isPumpRunning() [L118] RET __utac_acc__Specification5_spec__2() [L120] COND FALSE !(\read(pumpRunning)) [L127] COND TRUE \read(systemActive) [L129] CALL processEnvironment() [L149] int tmp ; [L152] COND TRUE ! pumpRunning [L154] CALL, EXPR isHighWaterLevel() [L246] int retValue_acc ; [L247] int tmp ; [L248] int tmp___0 ; [L252] CALL, EXPR isHighWaterSensorDry() [L954] int retValue_acc ; [L957] COND TRUE waterLevel < 2 [L958] retValue_acc = 1 [L959] return (retValue_acc); [L252] RET, EXPR isHighWaterSensorDry() [L252] tmp = isHighWaterSensorDry() [L254] COND TRUE \read(tmp) [L255] tmp___0 = 0 [L259] retValue_acc = tmp___0 [L260] return (retValue_acc); [L154] RET, EXPR isHighWaterLevel() [L154] tmp = isHighWaterLevel() [L156] COND FALSE !(\read(tmp)) [L162] FCALL processEnvironment__wrappee__base() [L129] RET processEnvironment() [L135] CALL __utac_acc__Specification5_spec__3() [L845] int tmp ; [L846] int tmp___0 ; [L850] CALL, EXPR getWaterLevel() [L945] int retValue_acc ; [L948] retValue_acc = waterLevel [L949] return (retValue_acc); [L850] RET, EXPR getWaterLevel() [L850] tmp = getWaterLevel() [L852] COND TRUE tmp != 2 [L854] CALL, EXPR isPumpRunning() [L201] int retValue_acc ; [L204] retValue_acc = pumpRunning [L205] return (retValue_acc); [L854] RET, EXPR isPumpRunning() [L854] tmp___0 = isPumpRunning() [L856] COND FALSE !(\read(tmp___0)) [L135] RET __utac_acc__Specification5_spec__3() [L714] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:18:49,547 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)