./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product55.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_product55.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 9e826f48819dedbf1a290c3ced69eb835c065ed69febc6d0054f416e73afcb1c --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:18:54,242 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:18:54,244 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:18:54,283 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:18:54,283 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:18:54,286 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:18:54,287 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:18:54,288 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:18:54,290 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:18:54,292 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:18:54,293 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:18:54,294 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:18:54,294 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:18:54,294 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:18:54,295 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:18:54,296 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:18:54,296 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:18:54,297 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:18:54,298 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:18:54,299 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:18:54,300 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:18:54,316 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:18:54,318 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:18:54,319 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:18:54,323 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:18:54,324 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:18:54,324 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:18:54,325 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:18:54,325 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:18:54,326 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:18:54,326 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:18:54,327 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:18:54,328 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:18:54,329 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:18:54,330 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:18:54,330 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:18:54,330 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:18:54,331 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:18:54,331 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:18:54,331 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:18:54,332 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:18:54,333 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:18:54,360 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:18:54,360 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:18:54,360 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:18:54,361 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:18:54,361 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:18:54,362 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:18:54,362 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:18:54,362 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:18:54,362 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:18:54,362 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:18:54,363 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:18:54,363 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:18:54,363 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:18:54,363 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:18:54,364 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:18:54,364 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:18:54,364 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:18:54,364 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:18:54,364 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:18:54,364 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:18:54,364 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:18:54,364 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:18:54,365 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:18:54,365 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:18:54,365 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:18:54,365 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:18:54,365 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:18:54,365 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:18:54,365 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:18:54,366 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:18:54,366 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:18:54,367 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:18:54,367 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e826f48819dedbf1a290c3ced69eb835c065ed69febc6d0054f416e73afcb1c [2022-02-21 04:18:54,580 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:18:54,604 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:18:54,606 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:18:54,607 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:18:54,608 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:18:54,609 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product55.cil.c [2022-02-21 04:18:54,682 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e2860294/234815bffada4060b76e538663969c81/FLAGa08f6089d [2022-02-21 04:18:55,092 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:18:55,093 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product55.cil.c [2022-02-21 04:18:55,108 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e2860294/234815bffada4060b76e538663969c81/FLAGa08f6089d [2022-02-21 04:18:55,120 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e2860294/234815bffada4060b76e538663969c81 [2022-02-21 04:18:55,122 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:18:55,123 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:18:55,124 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:18:55,125 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:18:55,127 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:18:55,128 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:18:55" (1/1) ... [2022-02-21 04:18:55,129 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@751e9134 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:55, skipping insertion in model container [2022-02-21 04:18:55,129 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:18:55" (1/1) ... [2022-02-21 04:18:55,134 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:18:55,178 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:18:55,399 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_product55.cil.c[13125,13138] [2022-02-21 04:18:55,445 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:18:55,464 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:18:55,537 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_product55.cil.c[13125,13138] [2022-02-21 04:18:55,554 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:18:55,582 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:18:55,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:55 WrapperNode [2022-02-21 04:18:55,584 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:18:55,585 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:18:55,586 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:18:55,586 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:18:55,592 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:55" (1/1) ... [2022-02-21 04:18:55,607 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:55" (1/1) ... [2022-02-21 04:18:55,656 INFO L137 Inliner]: procedures = 59, calls = 163, calls flagged for inlining = 60, calls inlined = 146, statements flattened = 1048 [2022-02-21 04:18:55,657 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:18:55,659 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:18:55,659 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:18:55,660 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:18:55,666 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:55" (1/1) ... [2022-02-21 04:18:55,666 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:55" (1/1) ... [2022-02-21 04:18:55,671 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:55" (1/1) ... [2022-02-21 04:18:55,679 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:55" (1/1) ... [2022-02-21 04:18:55,694 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:55" (1/1) ... [2022-02-21 04:18:55,715 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:55" (1/1) ... [2022-02-21 04:18:55,718 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:55" (1/1) ... [2022-02-21 04:18:55,722 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:18:55,723 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:18:55,723 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:18:55,723 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:18:55,740 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:55" (1/1) ... [2022-02-21 04:18:55,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:18:55,767 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:18:55,779 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-02-21 04:18:55,790 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-02-21 04:18:55,812 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:18:55,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:18:55,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:18:55,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:18:55,924 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:18:55,925 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:18:56,682 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:18:56,693 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:18:56,697 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:18:56,699 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:56 BoogieIcfgContainer [2022-02-21 04:18:56,700 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:18:56,701 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:18:56,701 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:18:56,703 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:18:56,704 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:56,704 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:18:55" (1/3) ... [2022-02-21 04:18:56,705 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@79e19979 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:18:56, skipping insertion in model container [2022-02-21 04:18:56,705 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:56,705 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:18:55" (2/3) ... [2022-02-21 04:18:56,706 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@79e19979 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:18:56, skipping insertion in model container [2022-02-21 04:18:56,706 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:18:56,706 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:56" (3/3) ... [2022-02-21 04:18:56,707 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product55.cil.c [2022-02-21 04:18:56,744 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:18:56,745 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:18:56,745 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:18:56,745 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:18:56,745 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:18:56,745 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:18:56,745 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:18:56,745 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:18:56,775 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 284 states, 283 states have (on average 1.3674911660777385) internal successors, (387), 283 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:56,841 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 186 [2022-02-21 04:18:56,841 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:56,842 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:56,860 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:56,860 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:56,860 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:18:56,861 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 284 states, 283 states have (on average 1.3674911660777385) internal successors, (387), 283 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:56,892 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 186 [2022-02-21 04:18:56,892 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:56,892 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:56,893 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:56,893 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:56,896 INFO L791 eck$LassoCheckResult]: Stem: 273#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(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0; 191#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 114#L544true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 88#L537true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 192#L552true main_#t~ret27#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1; 30#L508true assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 215#L479true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 261#L995true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet29#1, test_#t~nondet30#1, test_#t~nondet31#1, test_#t~nondet32#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 186#L577-2true [2022-02-21 04:18:56,897 INFO L793 eck$LassoCheckResult]: Loop: 186#L577-2true assume !false; 194#L578true assume test_~splverifierCounter~0#1 < 4; 154#L579true test_~tmp~4#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 138#L587true assume !(0 != test_~tmp~4#1); 212#L587-2true test_~tmp___0~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 121#L597true assume !(0 != test_~tmp___0~0#1); 211#L597-2true test_~tmp___2~0#1 := test_#t~nondet31#1;havoc test_#t~nondet31#1; 33#L607true assume 0 != test_~tmp___2~0#1; 234#L613-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret52#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~11#1;havoc isPumpRunning_~retValue_acc~11#1;isPumpRunning_~retValue_acc~11#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~11#1; 82#L895true __utac_acc__Specification5_spec__2_#t~ret52#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret52#1;havoc __utac_acc__Specification5_spec__2_#t~ret52#1; 52#L1005true assume { :end_inline___utac_acc__Specification5_spec__2 } true; 105#L758true assume !(0 != ~pumpRunning~0); 5#L758-2true assume !(0 != ~systemActive~0); 224#L765-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret53#1, __utac_acc__Specification5_spec__3_#t~ret54#1, __utac_acc__Specification5_spec__3_~tmp~10#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~10#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; 10#L715true __utac_acc__Specification5_spec__3_#t~ret53#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~10#1 := __utac_acc__Specification5_spec__3_#t~ret53#1;havoc __utac_acc__Specification5_spec__3_#t~ret53#1; 157#L1016true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~10#1); 62#L1016-1true assume { :end_inline___utac_acc__Specification5_spec__3 } true; 170#L775true assume { :end_inline_timeShift } true; 186#L577-2true [2022-02-21 04:18:56,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:56,902 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2022-02-21 04:18:56,909 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:56,913 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657663340] [2022-02-21 04:18:56,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:56,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:57,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:57,067 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:57,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:57,129 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:57,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:57,132 INFO L85 PathProgramCache]: Analyzing trace with hash 81531500, now seen corresponding path program 1 times [2022-02-21 04:18:57,132 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:57,133 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061211025] [2022-02-21 04:18:57,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:57,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:57,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:57,156 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:57,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:57,169 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:57,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:57,171 INFO L85 PathProgramCache]: Analyzing trace with hash -1257820907, now seen corresponding path program 1 times [2022-02-21 04:18:57,172 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:57,172 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987066969] [2022-02-21 04:18:57,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:57,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:57,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:57,315 INFO L290 TraceCheckUtils]: 0: Hoare triple {292#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0; {294#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:57,316 INFO L290 TraceCheckUtils]: 1: Hoare triple {294#(= 1 ~systemActive~0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; {294#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:57,316 INFO L290 TraceCheckUtils]: 2: Hoare triple {294#(= 1 ~systemActive~0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {294#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:18:57,317 INFO L290 TraceCheckUtils]: 3: Hoare triple {294#(= 1 ~systemActive~0)} assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; {295#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} is VALID [2022-02-21 04:18:57,317 INFO L290 TraceCheckUtils]: 4: Hoare triple {295#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} main_#t~ret27#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1; {296#(= |ULTIMATE.start_main_~tmp~3#1| ~systemActive~0)} is VALID [2022-02-21 04:18:57,319 INFO L290 TraceCheckUtils]: 5: Hoare triple {296#(= |ULTIMATE.start_main_~tmp~3#1| ~systemActive~0)} assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; {297#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:57,320 INFO L290 TraceCheckUtils]: 6: Hoare triple {297#(not (= 0 ~systemActive~0))} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; {297#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:57,320 INFO L290 TraceCheckUtils]: 7: Hoare triple {297#(not (= 0 ~systemActive~0))} assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet29#1, test_#t~nondet30#1, test_#t~nondet31#1, test_#t~nondet32#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {297#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:57,321 INFO L290 TraceCheckUtils]: 8: Hoare triple {297#(not (= 0 ~systemActive~0))} assume !false; {297#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:57,322 INFO L290 TraceCheckUtils]: 9: Hoare triple {297#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0#1 < 4; {297#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:57,322 INFO L290 TraceCheckUtils]: 10: Hoare triple {297#(not (= 0 ~systemActive~0))} test_~tmp~4#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; {297#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:57,322 INFO L290 TraceCheckUtils]: 11: Hoare triple {297#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~4#1); {297#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:57,323 INFO L290 TraceCheckUtils]: 12: Hoare triple {297#(not (= 0 ~systemActive~0))} test_~tmp___0~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; {297#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:57,324 INFO L290 TraceCheckUtils]: 13: Hoare triple {297#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~0#1); {297#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:57,324 INFO L290 TraceCheckUtils]: 14: Hoare triple {297#(not (= 0 ~systemActive~0))} test_~tmp___2~0#1 := test_#t~nondet31#1;havoc test_#t~nondet31#1; {297#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:57,324 INFO L290 TraceCheckUtils]: 15: Hoare triple {297#(not (= 0 ~systemActive~0))} assume 0 != test_~tmp___2~0#1; {297#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:57,325 INFO L290 TraceCheckUtils]: 16: Hoare triple {297#(not (= 0 ~systemActive~0))} assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret52#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~11#1;havoc isPumpRunning_~retValue_acc~11#1;isPumpRunning_~retValue_acc~11#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~11#1; {297#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:57,325 INFO L290 TraceCheckUtils]: 17: Hoare triple {297#(not (= 0 ~systemActive~0))} __utac_acc__Specification5_spec__2_#t~ret52#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret52#1;havoc __utac_acc__Specification5_spec__2_#t~ret52#1; {297#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:57,326 INFO L290 TraceCheckUtils]: 18: Hoare triple {297#(not (= 0 ~systemActive~0))} assume { :end_inline___utac_acc__Specification5_spec__2 } true; {297#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:57,327 INFO L290 TraceCheckUtils]: 19: Hoare triple {297#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {297#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:18:57,327 INFO L290 TraceCheckUtils]: 20: Hoare triple {297#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {293#false} is VALID [2022-02-21 04:18:57,328 INFO L290 TraceCheckUtils]: 21: Hoare triple {293#false} assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret53#1, __utac_acc__Specification5_spec__3_#t~ret54#1, __utac_acc__Specification5_spec__3_~tmp~10#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~10#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; {293#false} is VALID [2022-02-21 04:18:57,329 INFO L290 TraceCheckUtils]: 22: Hoare triple {293#false} __utac_acc__Specification5_spec__3_#t~ret53#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~10#1 := __utac_acc__Specification5_spec__3_#t~ret53#1;havoc __utac_acc__Specification5_spec__3_#t~ret53#1; {293#false} is VALID [2022-02-21 04:18:57,329 INFO L290 TraceCheckUtils]: 23: Hoare triple {293#false} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~10#1); {293#false} is VALID [2022-02-21 04:18:57,329 INFO L290 TraceCheckUtils]: 24: Hoare triple {293#false} assume { :end_inline___utac_acc__Specification5_spec__3 } true; {293#false} is VALID [2022-02-21 04:18:57,329 INFO L290 TraceCheckUtils]: 25: Hoare triple {293#false} assume { :end_inline_timeShift } true; {293#false} is VALID [2022-02-21 04:18:57,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:18:57,331 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:57,331 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987066969] [2022-02-21 04:18:57,332 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987066969] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:57,332 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:57,332 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:18:57,333 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548147394] [2022-02-21 04:18:57,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:57,468 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:57,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-21 04:18:57,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-21 04:18:57,499 INFO L87 Difference]: Start difference. First operand has 284 states, 283 states have (on average 1.3674911660777385) internal successors, (387), 283 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:58,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:58,827 INFO L93 Difference]: Finished difference Result 627 states and 834 transitions. [2022-02-21 04:18:58,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-21 04:18:58,829 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:58,853 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 26 edges. 26 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:18:58,858 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 627 states and 834 transitions. [2022-02-21 04:18:58,890 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 409 [2022-02-21 04:18:58,915 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 627 states to 597 states and 804 transitions. [2022-02-21 04:18:58,916 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 597 [2022-02-21 04:18:58,917 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 597 [2022-02-21 04:18:58,918 INFO L73 IsDeterministic]: Start isDeterministic. Operand 597 states and 804 transitions. [2022-02-21 04:18:58,920 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:58,920 INFO L681 BuchiCegarLoop]: Abstraction has 597 states and 804 transitions. [2022-02-21 04:18:58,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states and 804 transitions. [2022-02-21 04:18:58,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 332. [2022-02-21 04:18:58,946 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:58,947 INFO L82 GeneralOperation]: Start isEquivalent. First operand 597 states and 804 transitions. Second operand has 332 states, 332 states have (on average 1.3433734939759037) internal successors, (446), 331 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:58,948 INFO L74 IsIncluded]: Start isIncluded. First operand 597 states and 804 transitions. Second operand has 332 states, 332 states have (on average 1.3433734939759037) internal successors, (446), 331 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:58,950 INFO L87 Difference]: Start difference. First operand 597 states and 804 transitions. Second operand has 332 states, 332 states have (on average 1.3433734939759037) internal successors, (446), 331 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:58,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:58,973 INFO L93 Difference]: Finished difference Result 597 states and 804 transitions. [2022-02-21 04:18:58,973 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 804 transitions. [2022-02-21 04:18:58,977 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:58,977 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:58,998 INFO L74 IsIncluded]: Start isIncluded. First operand has 332 states, 332 states have (on average 1.3433734939759037) internal successors, (446), 331 states have internal predecessors, (446), 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 597 states and 804 transitions. [2022-02-21 04:18:58,999 INFO L87 Difference]: Start difference. First operand has 332 states, 332 states have (on average 1.3433734939759037) internal successors, (446), 331 states have internal predecessors, (446), 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 597 states and 804 transitions. [2022-02-21 04:18:59,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:59,020 INFO L93 Difference]: Finished difference Result 597 states and 804 transitions. [2022-02-21 04:18:59,020 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 804 transitions. [2022-02-21 04:18:59,021 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:59,021 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:59,022 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:59,022 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:59,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 332 states have (on average 1.3433734939759037) internal successors, (446), 331 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:59,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 446 transitions. [2022-02-21 04:18:59,032 INFO L704 BuchiCegarLoop]: Abstraction has 332 states and 446 transitions. [2022-02-21 04:18:59,033 INFO L587 BuchiCegarLoop]: Abstraction has 332 states and 446 transitions. [2022-02-21 04:18:59,033 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:18:59,033 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 332 states and 446 transitions. [2022-02-21 04:18:59,034 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 228 [2022-02-21 04:18:59,035 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:59,035 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:59,035 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:59,036 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:59,036 INFO L791 eck$LassoCheckResult]: Stem: 1199#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(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0; 1176#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 1110#L544 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1084#L537 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 1085#L552 main_#t~ret27#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1; 981#L508 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 982#L479 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 1188#L995 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet29#1, test_#t~nondet30#1, test_#t~nondet31#1, test_#t~nondet32#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1162#L577-2 [2022-02-21 04:18:59,036 INFO L793 eck$LassoCheckResult]: Loop: 1162#L577-2 assume !false; 1174#L578 assume test_~splverifierCounter~0#1 < 4; 1147#L579 test_~tmp~4#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 1133#L587 assume !(0 != test_~tmp~4#1); 1109#L587-2 test_~tmp___0~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 1119#L597 assume !(0 != test_~tmp___0~0#1); 933#L597-2 test_~tmp___2~0#1 := test_#t~nondet31#1;havoc test_#t~nondet31#1; 986#L607 assume 0 != test_~tmp___2~0#1; 987#L613-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret52#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~11#1;havoc isPumpRunning_~retValue_acc~11#1;isPumpRunning_~retValue_acc~11#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~11#1; 1074#L895 __utac_acc__Specification5_spec__2_#t~ret52#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret52#1;havoc __utac_acc__Specification5_spec__2_#t~ret52#1; 1021#L1005 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 1022#L758 assume !(0 != ~pumpRunning~0); 934#L758-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret40#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 935#L842 assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret41#1, isMethaneAlarm_~retValue_acc~10#1;havoc isMethaneAlarm_~retValue_acc~10#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 1027#L683 isMethaneAlarm_#t~ret41#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~10#1 := isMethaneAlarm_#t~ret41#1;havoc isMethaneAlarm_#t~ret41#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~10#1; 1139#L886 processEnvironment_#t~ret40#1 := isMethaneAlarm_#res#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~7#1 := processEnvironment_#t~ret40#1;havoc processEnvironment_#t~ret40#1; 1140#L846 assume 0 != processEnvironment_~tmp~7#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 1102#L876-1 assume { :end_inline_deactivatePump } true; 1046#L842-1 assume { :end_inline_processEnvironment } true; 1047#L765-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret53#1, __utac_acc__Specification5_spec__3_#t~ret54#1, __utac_acc__Specification5_spec__3_~tmp~10#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~10#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; 944#L715 __utac_acc__Specification5_spec__3_#t~ret53#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~10#1 := __utac_acc__Specification5_spec__3_#t~ret53#1;havoc __utac_acc__Specification5_spec__3_#t~ret53#1; 945#L1016 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~10#1); 1042#L1016-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 1043#L775 assume { :end_inline_timeShift } true; 1162#L577-2 [2022-02-21 04:18:59,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:59,037 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2022-02-21 04:18:59,037 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:59,037 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170750881] [2022-02-21 04:18:59,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:59,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:59,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:59,049 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:59,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:59,070 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:59,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:59,071 INFO L85 PathProgramCache]: Analyzing trace with hash -1166625067, now seen corresponding path program 1 times [2022-02-21 04:18:59,071 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:59,071 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31735681] [2022-02-21 04:18:59,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:59,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:59,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:59,088 INFO L290 TraceCheckUtils]: 0: Hoare triple {2460#true} assume !false; {2460#true} is VALID [2022-02-21 04:18:59,088 INFO L290 TraceCheckUtils]: 1: Hoare triple {2460#true} assume test_~splverifierCounter~0#1 < 4; {2460#true} is VALID [2022-02-21 04:18:59,088 INFO L290 TraceCheckUtils]: 2: Hoare triple {2460#true} test_~tmp~4#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; {2460#true} is VALID [2022-02-21 04:18:59,088 INFO L290 TraceCheckUtils]: 3: Hoare triple {2460#true} assume !(0 != test_~tmp~4#1); {2460#true} is VALID [2022-02-21 04:18:59,089 INFO L290 TraceCheckUtils]: 4: Hoare triple {2460#true} test_~tmp___0~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; {2460#true} is VALID [2022-02-21 04:18:59,089 INFO L290 TraceCheckUtils]: 5: Hoare triple {2460#true} assume !(0 != test_~tmp___0~0#1); {2460#true} is VALID [2022-02-21 04:18:59,089 INFO L290 TraceCheckUtils]: 6: Hoare triple {2460#true} test_~tmp___2~0#1 := test_#t~nondet31#1;havoc test_#t~nondet31#1; {2460#true} is VALID [2022-02-21 04:18:59,089 INFO L290 TraceCheckUtils]: 7: Hoare triple {2460#true} assume 0 != test_~tmp___2~0#1; {2460#true} is VALID [2022-02-21 04:18:59,089 INFO L290 TraceCheckUtils]: 8: Hoare triple {2460#true} assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret52#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~11#1;havoc isPumpRunning_~retValue_acc~11#1;isPumpRunning_~retValue_acc~11#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~11#1; {2460#true} is VALID [2022-02-21 04:18:59,089 INFO L290 TraceCheckUtils]: 9: Hoare triple {2460#true} __utac_acc__Specification5_spec__2_#t~ret52#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret52#1;havoc __utac_acc__Specification5_spec__2_#t~ret52#1; {2460#true} is VALID [2022-02-21 04:18:59,090 INFO L290 TraceCheckUtils]: 10: Hoare triple {2460#true} assume { :end_inline___utac_acc__Specification5_spec__2 } true; {2460#true} is VALID [2022-02-21 04:18:59,090 INFO L290 TraceCheckUtils]: 11: Hoare triple {2460#true} assume !(0 != ~pumpRunning~0); {2462#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:18:59,091 INFO L290 TraceCheckUtils]: 12: Hoare triple {2462#(= ~pumpRunning~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret40#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; {2462#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:18:59,091 INFO L290 TraceCheckUtils]: 13: Hoare triple {2462#(= ~pumpRunning~0 0)} assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret41#1, isMethaneAlarm_~retValue_acc~10#1;havoc isMethaneAlarm_~retValue_acc~10#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; {2461#false} is VALID [2022-02-21 04:18:59,091 INFO L290 TraceCheckUtils]: 14: Hoare triple {2461#false} isMethaneAlarm_#t~ret41#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~10#1 := isMethaneAlarm_#t~ret41#1;havoc isMethaneAlarm_#t~ret41#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~10#1; {2461#false} is VALID [2022-02-21 04:18:59,091 INFO L290 TraceCheckUtils]: 15: Hoare triple {2461#false} processEnvironment_#t~ret40#1 := isMethaneAlarm_#res#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~7#1 := processEnvironment_#t~ret40#1;havoc processEnvironment_#t~ret40#1; {2461#false} is VALID [2022-02-21 04:18:59,092 INFO L290 TraceCheckUtils]: 16: Hoare triple {2461#false} assume 0 != processEnvironment_~tmp~7#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; {2461#false} is VALID [2022-02-21 04:18:59,092 INFO L290 TraceCheckUtils]: 17: Hoare triple {2461#false} assume { :end_inline_deactivatePump } true; {2461#false} is VALID [2022-02-21 04:18:59,092 INFO L290 TraceCheckUtils]: 18: Hoare triple {2461#false} assume { :end_inline_processEnvironment } true; {2461#false} is VALID [2022-02-21 04:18:59,092 INFO L290 TraceCheckUtils]: 19: Hoare triple {2461#false} assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret53#1, __utac_acc__Specification5_spec__3_#t~ret54#1, __utac_acc__Specification5_spec__3_~tmp~10#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~10#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; {2461#false} is VALID [2022-02-21 04:18:59,092 INFO L290 TraceCheckUtils]: 20: Hoare triple {2461#false} __utac_acc__Specification5_spec__3_#t~ret53#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~10#1 := __utac_acc__Specification5_spec__3_#t~ret53#1;havoc __utac_acc__Specification5_spec__3_#t~ret53#1; {2461#false} is VALID [2022-02-21 04:18:59,092 INFO L290 TraceCheckUtils]: 21: Hoare triple {2461#false} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~10#1); {2461#false} is VALID [2022-02-21 04:18:59,093 INFO L290 TraceCheckUtils]: 22: Hoare triple {2461#false} assume { :end_inline___utac_acc__Specification5_spec__3 } true; {2461#false} is VALID [2022-02-21 04:18:59,093 INFO L290 TraceCheckUtils]: 23: Hoare triple {2461#false} assume { :end_inline_timeShift } true; {2461#false} is VALID [2022-02-21 04:18:59,093 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 04:18:59,093 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:59,093 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31735681] [2022-02-21 04:18:59,094 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31735681] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:59,094 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:59,094 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:18:59,094 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273395339] [2022-02-21 04:18:59,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:59,094 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:18:59,094 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:59,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:18:59,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:18:59,095 INFO L87 Difference]: Start difference. First operand 332 states and 446 transitions. cyclomatic complexity: 117 Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:59,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:59,311 INFO L93 Difference]: Finished difference Result 346 states and 440 transitions. [2022-02-21 04:18:59,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:18:59,312 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:59,322 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 24 edges. 24 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:18:59,323 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 346 states and 440 transitions. [2022-02-21 04:18:59,330 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 243 [2022-02-21 04:18:59,359 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 346 states to 346 states and 440 transitions. [2022-02-21 04:18:59,359 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 346 [2022-02-21 04:18:59,360 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 346 [2022-02-21 04:18:59,360 INFO L73 IsDeterministic]: Start isDeterministic. Operand 346 states and 440 transitions. [2022-02-21 04:18:59,361 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:18:59,361 INFO L681 BuchiCegarLoop]: Abstraction has 346 states and 440 transitions. [2022-02-21 04:18:59,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states and 440 transitions. [2022-02-21 04:18:59,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 346. [2022-02-21 04:18:59,369 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:18:59,370 INFO L82 GeneralOperation]: Start isEquivalent. First operand 346 states and 440 transitions. Second operand has 346 states, 346 states have (on average 1.2716763005780347) internal successors, (440), 345 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:59,371 INFO L74 IsIncluded]: Start isIncluded. First operand 346 states and 440 transitions. Second operand has 346 states, 346 states have (on average 1.2716763005780347) internal successors, (440), 345 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:59,372 INFO L87 Difference]: Start difference. First operand 346 states and 440 transitions. Second operand has 346 states, 346 states have (on average 1.2716763005780347) internal successors, (440), 345 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:59,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:59,379 INFO L93 Difference]: Finished difference Result 346 states and 440 transitions. [2022-02-21 04:18:59,379 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 440 transitions. [2022-02-21 04:18:59,380 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:59,380 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:59,381 INFO L74 IsIncluded]: Start isIncluded. First operand has 346 states, 346 states have (on average 1.2716763005780347) internal successors, (440), 345 states have internal predecessors, (440), 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 346 states and 440 transitions. [2022-02-21 04:18:59,382 INFO L87 Difference]: Start difference. First operand has 346 states, 346 states have (on average 1.2716763005780347) internal successors, (440), 345 states have internal predecessors, (440), 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 346 states and 440 transitions. [2022-02-21 04:18:59,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:18:59,390 INFO L93 Difference]: Finished difference Result 346 states and 440 transitions. [2022-02-21 04:18:59,390 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 440 transitions. [2022-02-21 04:18:59,390 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:18:59,390 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:18:59,391 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:18:59,391 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:18:59,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 346 states have (on average 1.2716763005780347) internal successors, (440), 345 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:18:59,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 440 transitions. [2022-02-21 04:18:59,399 INFO L704 BuchiCegarLoop]: Abstraction has 346 states and 440 transitions. [2022-02-21 04:18:59,399 INFO L587 BuchiCegarLoop]: Abstraction has 346 states and 440 transitions. [2022-02-21 04:18:59,399 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:18:59,399 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 346 states and 440 transitions. [2022-02-21 04:18:59,401 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 243 [2022-02-21 04:18:59,401 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:18:59,401 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:18:59,402 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:59,402 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:18:59,402 INFO L791 eck$LassoCheckResult]: Stem: 3044#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(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0; 3014#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 2959#L544 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2938#L537 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 2939#L552 main_#t~ret27#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1; 2850#L508 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 2851#L479 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 3026#L995 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet29#1, test_#t~nondet30#1, test_#t~nondet31#1, test_#t~nondet32#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 3001#L577-2 [2022-02-21 04:18:59,403 INFO L793 eck$LassoCheckResult]: Loop: 3001#L577-2 assume !false; 3015#L578 assume test_~splverifierCounter~0#1 < 4; 2987#L579 test_~tmp~4#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 2976#L587 assume !(0 != test_~tmp~4#1); 2958#L587-2 test_~tmp___0~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 2965#L597 assume !(0 != test_~tmp___0~0#1); 2812#L597-2 test_~tmp___2~0#1 := test_#t~nondet31#1;havoc test_#t~nondet31#1; 2854#L607 assume 0 != test_~tmp___2~0#1; 2855#L613-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret52#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~11#1;havoc isPumpRunning_~retValue_acc~11#1;isPumpRunning_~retValue_acc~11#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~11#1; 3119#L895 __utac_acc__Specification5_spec__2_#t~ret52#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret52#1;havoc __utac_acc__Specification5_spec__2_#t~ret52#1; 2885#L1005 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 2886#L758 assume !(0 != ~pumpRunning~0); 2813#L758-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret40#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 2814#L842 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret39#1, processEnvironment__wrappee__lowWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~6#1; 2891#L816-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret38#1, processEnvironment__wrappee__highWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5#1; 2963#L790-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret50#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~12#1;havoc isHighWaterLevel_~tmp~8#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 2964#L723-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 2996#L728-3 isHighWaterLevel_#t~ret50#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8#1 := isHighWaterLevel_#t~ret50#1;havoc isHighWaterLevel_#t~ret50#1; 2936#L944-9 assume 0 != isHighWaterLevel_~tmp~8#1;isHighWaterLevel_~tmp___0~1#1 := 0; 2937#L944-11 isHighWaterLevel_~retValue_acc~12#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1; 2887#L950-3 processEnvironment__wrappee__highWaterSensor_#t~ret38#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~5#1 := processEnvironment__wrappee__highWaterSensor_#t~ret38#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret38#1; 2888#L794-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2915#L782-6 assume { :end_inline_processEnvironment__wrappee__base } true; 2916#L790-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 2947#L816-3 assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 2904#L842-1 assume { :end_inline_processEnvironment } true; 2905#L765-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret53#1, __utac_acc__Specification5_spec__3_#t~ret54#1, __utac_acc__Specification5_spec__3_~tmp~10#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~10#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; 3133#L715 __utac_acc__Specification5_spec__3_#t~ret53#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~10#1 := __utac_acc__Specification5_spec__3_#t~ret53#1;havoc __utac_acc__Specification5_spec__3_#t~ret53#1; 3123#L1016 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~10#1); 2900#L1016-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 2901#L775 assume { :end_inline_timeShift } true; 3001#L577-2 [2022-02-21 04:18:59,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:59,404 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2022-02-21 04:18:59,404 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:59,404 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648490439] [2022-02-21 04:18:59,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:59,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:59,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:59,414 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:18:59,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:18:59,432 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:18:59,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:18:59,433 INFO L85 PathProgramCache]: Analyzing trace with hash 1326110943, now seen corresponding path program 1 times [2022-02-21 04:18:59,433 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:18:59,433 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591668088] [2022-02-21 04:18:59,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:18:59,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:18:59,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:18:59,473 INFO L290 TraceCheckUtils]: 0: Hoare triple {3852#true} assume !false; {3852#true} is VALID [2022-02-21 04:18:59,474 INFO L290 TraceCheckUtils]: 1: Hoare triple {3852#true} assume test_~splverifierCounter~0#1 < 4; {3852#true} is VALID [2022-02-21 04:18:59,474 INFO L290 TraceCheckUtils]: 2: Hoare triple {3852#true} test_~tmp~4#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; {3852#true} is VALID [2022-02-21 04:18:59,474 INFO L290 TraceCheckUtils]: 3: Hoare triple {3852#true} assume !(0 != test_~tmp~4#1); {3852#true} is VALID [2022-02-21 04:18:59,474 INFO L290 TraceCheckUtils]: 4: Hoare triple {3852#true} test_~tmp___0~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; {3852#true} is VALID [2022-02-21 04:18:59,475 INFO L290 TraceCheckUtils]: 5: Hoare triple {3852#true} assume !(0 != test_~tmp___0~0#1); {3852#true} is VALID [2022-02-21 04:18:59,475 INFO L290 TraceCheckUtils]: 6: Hoare triple {3852#true} test_~tmp___2~0#1 := test_#t~nondet31#1;havoc test_#t~nondet31#1; {3852#true} is VALID [2022-02-21 04:18:59,475 INFO L290 TraceCheckUtils]: 7: Hoare triple {3852#true} assume 0 != test_~tmp___2~0#1; {3852#true} is VALID [2022-02-21 04:18:59,475 INFO L290 TraceCheckUtils]: 8: Hoare triple {3852#true} assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret52#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~11#1;havoc isPumpRunning_~retValue_acc~11#1;isPumpRunning_~retValue_acc~11#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~11#1; {3852#true} is VALID [2022-02-21 04:18:59,476 INFO L290 TraceCheckUtils]: 9: Hoare triple {3852#true} __utac_acc__Specification5_spec__2_#t~ret52#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret52#1;havoc __utac_acc__Specification5_spec__2_#t~ret52#1; {3852#true} is VALID [2022-02-21 04:18:59,476 INFO L290 TraceCheckUtils]: 10: Hoare triple {3852#true} assume { :end_inline___utac_acc__Specification5_spec__2 } true; {3852#true} is VALID [2022-02-21 04:18:59,476 INFO L290 TraceCheckUtils]: 11: Hoare triple {3852#true} assume !(0 != ~pumpRunning~0); {3852#true} is VALID [2022-02-21 04:18:59,476 INFO L290 TraceCheckUtils]: 12: Hoare triple {3852#true} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret40#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; {3852#true} is VALID [2022-02-21 04:18:59,477 INFO L290 TraceCheckUtils]: 13: Hoare triple {3852#true} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret39#1, processEnvironment__wrappee__lowWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~6#1; {3852#true} is VALID [2022-02-21 04:18:59,477 INFO L290 TraceCheckUtils]: 14: Hoare triple {3852#true} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret38#1, processEnvironment__wrappee__highWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5#1; {3852#true} is VALID [2022-02-21 04:18:59,477 INFO L290 TraceCheckUtils]: 15: Hoare triple {3852#true} assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret50#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~12#1;havoc isHighWaterLevel_~tmp~8#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; {3852#true} is VALID [2022-02-21 04:18:59,478 INFO L290 TraceCheckUtils]: 16: Hoare triple {3852#true} assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; {3854#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:59,478 INFO L290 TraceCheckUtils]: 17: Hoare triple {3854#(<= ~waterLevel~0 1)} isHighWaterLevel_#t~ret50#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8#1 := isHighWaterLevel_#t~ret50#1;havoc isHighWaterLevel_#t~ret50#1; {3854#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:59,479 INFO L290 TraceCheckUtils]: 18: Hoare triple {3854#(<= ~waterLevel~0 1)} assume 0 != isHighWaterLevel_~tmp~8#1;isHighWaterLevel_~tmp___0~1#1 := 0; {3854#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:59,479 INFO L290 TraceCheckUtils]: 19: Hoare triple {3854#(<= ~waterLevel~0 1)} isHighWaterLevel_~retValue_acc~12#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1; {3854#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:59,480 INFO L290 TraceCheckUtils]: 20: Hoare triple {3854#(<= ~waterLevel~0 1)} processEnvironment__wrappee__highWaterSensor_#t~ret38#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~5#1 := processEnvironment__wrappee__highWaterSensor_#t~ret38#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret38#1; {3854#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:59,480 INFO L290 TraceCheckUtils]: 21: Hoare triple {3854#(<= ~waterLevel~0 1)} assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; {3854#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:59,480 INFO L290 TraceCheckUtils]: 22: Hoare triple {3854#(<= ~waterLevel~0 1)} assume { :end_inline_processEnvironment__wrappee__base } true; {3854#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:59,481 INFO L290 TraceCheckUtils]: 23: Hoare triple {3854#(<= ~waterLevel~0 1)} assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; {3854#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:59,481 INFO L290 TraceCheckUtils]: 24: Hoare triple {3854#(<= ~waterLevel~0 1)} assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; {3854#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:59,482 INFO L290 TraceCheckUtils]: 25: Hoare triple {3854#(<= ~waterLevel~0 1)} assume { :end_inline_processEnvironment } true; {3854#(<= ~waterLevel~0 1)} is VALID [2022-02-21 04:18:59,482 INFO L290 TraceCheckUtils]: 26: Hoare triple {3854#(<= ~waterLevel~0 1)} assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret53#1, __utac_acc__Specification5_spec__3_#t~ret54#1, __utac_acc__Specification5_spec__3_~tmp~10#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~10#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; {3855#(<= |ULTIMATE.start_getWaterLevel_#res#1| 1)} is VALID [2022-02-21 04:18:59,483 INFO L290 TraceCheckUtils]: 27: Hoare triple {3855#(<= |ULTIMATE.start_getWaterLevel_#res#1| 1)} __utac_acc__Specification5_spec__3_#t~ret53#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~10#1 := __utac_acc__Specification5_spec__3_#t~ret53#1;havoc __utac_acc__Specification5_spec__3_#t~ret53#1; {3856#(<= |ULTIMATE.start___utac_acc__Specification5_spec__3_~tmp~10#1| 1)} is VALID [2022-02-21 04:18:59,483 INFO L290 TraceCheckUtils]: 28: Hoare triple {3856#(<= |ULTIMATE.start___utac_acc__Specification5_spec__3_~tmp~10#1| 1)} assume !(2 != __utac_acc__Specification5_spec__3_~tmp~10#1); {3853#false} is VALID [2022-02-21 04:18:59,483 INFO L290 TraceCheckUtils]: 29: Hoare triple {3853#false} assume { :end_inline___utac_acc__Specification5_spec__3 } true; {3853#false} is VALID [2022-02-21 04:18:59,484 INFO L290 TraceCheckUtils]: 30: Hoare triple {3853#false} assume { :end_inline_timeShift } true; {3853#false} is VALID [2022-02-21 04:18:59,484 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 04:18:59,484 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:18:59,484 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591668088] [2022-02-21 04:18:59,485 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591668088] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:18:59,485 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:18:59,485 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:18:59,485 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551294457] [2022-02-21 04:18:59,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:18:59,486 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:18:59,486 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:18:59,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-21 04:18:59,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-21 04:18:59,487 INFO L87 Difference]: Start difference. First operand 346 states and 440 transitions. cyclomatic complexity: 97 Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:19:00,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:19:00,551 INFO L93 Difference]: Finished difference Result 988 states and 1229 transitions. [2022-02-21 04:19:00,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-21 04:19:00,552 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:19:00,571 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 31 edges. 31 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:19:00,571 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 988 states and 1229 transitions. [2022-02-21 04:19:00,597 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 643 [2022-02-21 04:19:00,624 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 988 states to 988 states and 1229 transitions. [2022-02-21 04:19:00,624 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 988 [2022-02-21 04:19:00,625 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 988 [2022-02-21 04:19:00,625 INFO L73 IsDeterministic]: Start isDeterministic. Operand 988 states and 1229 transitions. [2022-02-21 04:19:00,626 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:19:00,626 INFO L681 BuchiCegarLoop]: Abstraction has 988 states and 1229 transitions. [2022-02-21 04:19:00,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 988 states and 1229 transitions. [2022-02-21 04:19:00,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 988 to 681. [2022-02-21 04:19:00,633 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:19:00,634 INFO L82 GeneralOperation]: Start isEquivalent. First operand 988 states and 1229 transitions. Second operand has 681 states, 681 states have (on average 1.2452276064610865) internal successors, (848), 680 states have internal predecessors, (848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:19:00,635 INFO L74 IsIncluded]: Start isIncluded. First operand 988 states and 1229 transitions. Second operand has 681 states, 681 states have (on average 1.2452276064610865) internal successors, (848), 680 states have internal predecessors, (848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:19:00,636 INFO L87 Difference]: Start difference. First operand 988 states and 1229 transitions. Second operand has 681 states, 681 states have (on average 1.2452276064610865) internal successors, (848), 680 states have internal predecessors, (848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:19:00,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:19:00,659 INFO L93 Difference]: Finished difference Result 988 states and 1229 transitions. [2022-02-21 04:19:00,659 INFO L276 IsEmpty]: Start isEmpty. Operand 988 states and 1229 transitions. [2022-02-21 04:19:00,660 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:19:00,660 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:19:00,661 INFO L74 IsIncluded]: Start isIncluded. First operand has 681 states, 681 states have (on average 1.2452276064610865) internal successors, (848), 680 states have internal predecessors, (848), 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 988 states and 1229 transitions. [2022-02-21 04:19:00,662 INFO L87 Difference]: Start difference. First operand has 681 states, 681 states have (on average 1.2452276064610865) internal successors, (848), 680 states have internal predecessors, (848), 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 988 states and 1229 transitions. [2022-02-21 04:19:00,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:19:00,687 INFO L93 Difference]: Finished difference Result 988 states and 1229 transitions. [2022-02-21 04:19:00,687 INFO L276 IsEmpty]: Start isEmpty. Operand 988 states and 1229 transitions. [2022-02-21 04:19:00,689 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:19:00,689 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:19:00,689 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:19:00,689 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:19:00,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 681 states, 681 states have (on average 1.2452276064610865) internal successors, (848), 680 states have internal predecessors, (848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:19:00,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 681 states to 681 states and 848 transitions. [2022-02-21 04:19:00,704 INFO L704 BuchiCegarLoop]: Abstraction has 681 states and 848 transitions. [2022-02-21 04:19:00,704 INFO L587 BuchiCegarLoop]: Abstraction has 681 states and 848 transitions. [2022-02-21 04:19:00,704 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2022-02-21 04:19:00,704 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 681 states and 848 transitions. [2022-02-21 04:19:00,706 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 483 [2022-02-21 04:19:00,706 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:19:00,707 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:19:00,707 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:19:00,707 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:19:00,707 INFO L791 eck$LassoCheckResult]: Stem: 5098#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(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0; 5061#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 5003#L544 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 4983#L537 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 4984#L552 main_#t~ret27#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1; 4895#L508 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 4896#L479 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 5070#L995 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet29#1, test_#t~nondet30#1, test_#t~nondet31#1, test_#t~nondet32#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 5048#L577-2 [2022-02-21 04:19:00,708 INFO L793 eck$LassoCheckResult]: Loop: 5048#L577-2 assume !false; 5059#L578 assume test_~splverifierCounter~0#1 < 4; 5032#L579 test_~tmp~4#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 5020#L587 assume !(0 != test_~tmp~4#1); 5022#L587-2 test_~tmp___0~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 5009#L597 assume !(0 != test_~tmp___0~0#1); 4856#L597-2 test_~tmp___2~0#1 := test_#t~nondet31#1;havoc test_#t~nondet31#1; 4899#L607 assume 0 != test_~tmp___2~0#1; 4900#L613-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret52#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~11#1;havoc isPumpRunning_~retValue_acc~11#1;isPumpRunning_~retValue_acc~11#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~11#1; 5080#L895 __utac_acc__Specification5_spec__2_#t~ret52#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret52#1;havoc __utac_acc__Specification5_spec__2_#t~ret52#1; 5501#L1005 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 4998#L758 assume !(0 != ~pumpRunning~0); 4857#L758-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret40#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 4858#L842 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret39#1, processEnvironment__wrappee__lowWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~6#1; 4934#L816-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret38#1, processEnvironment__wrappee__highWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5#1; 5007#L790-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret50#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~12#1;havoc isHighWaterLevel_~tmp~8#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 5008#L723-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 5041#L728-3 isHighWaterLevel_#t~ret50#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8#1 := isHighWaterLevel_#t~ret50#1;havoc isHighWaterLevel_#t~ret50#1; 5352#L944-9 assume 0 != isHighWaterLevel_~tmp~8#1;isHighWaterLevel_~tmp___0~1#1 := 0; 5259#L944-11 isHighWaterLevel_~retValue_acc~12#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1; 5257#L950-3 processEnvironment__wrappee__highWaterSensor_#t~ret38#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~5#1 := processEnvironment__wrappee__highWaterSensor_#t~ret38#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret38#1; 5255#L794-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 4958#L782-6 assume { :end_inline_processEnvironment__wrappee__base } true; 4959#L790-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 4992#L816-3 assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 4949#L842-1 assume { :end_inline_processEnvironment } true; 4950#L765-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret53#1, __utac_acc__Specification5_spec__3_#t~ret54#1, __utac_acc__Specification5_spec__3_~tmp~10#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~10#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; 5074#L715 __utac_acc__Specification5_spec__3_#t~ret53#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~10#1 := __utac_acc__Specification5_spec__3_#t~ret53#1;havoc __utac_acc__Specification5_spec__3_#t~ret53#1; 5034#L1016 assume 2 != __utac_acc__Specification5_spec__3_~tmp~10#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~11#1;havoc isPumpRunning_~retValue_acc~11#1;isPumpRunning_~retValue_acc~11#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~11#1; 5035#L895-1 __utac_acc__Specification5_spec__3_#t~ret54#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~3#1 := __utac_acc__Specification5_spec__3_#t~ret54#1;havoc __utac_acc__Specification5_spec__3_#t~ret54#1; 5094#L1020 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~3#1); 5472#L1016-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 5047#L775 assume { :end_inline_timeShift } true; 5048#L577-2 [2022-02-21 04:19:00,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:19:00,708 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2022-02-21 04:19:00,708 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:19:00,709 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015919074] [2022-02-21 04:19:00,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:19:00,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:19:00,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:19:00,715 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:19:00,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:19:00,721 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:19:00,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:19:00,722 INFO L85 PathProgramCache]: Analyzing trace with hash -1231763014, now seen corresponding path program 1 times [2022-02-21 04:19:00,722 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:19:00,722 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705997370] [2022-02-21 04:19:00,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:19:00,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:19:00,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:19:00,728 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:19:00,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:19:00,733 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:19:00,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:19:00,734 INFO L85 PathProgramCache]: Analyzing trace with hash 81651697, now seen corresponding path program 1 times [2022-02-21 04:19:00,734 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:19:00,734 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837940692] [2022-02-21 04:19:00,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:19:00,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:19:00,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:19:00,743 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:19:00,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:19:00,753 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:19:03,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:19:03 BoogieIcfgContainer [2022-02-21 04:19:03,915 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:19:03,916 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:19:03,916 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:19:03,916 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:19:03,916 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:18:56" (3/4) ... [2022-02-21 04:19:03,918 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:19:03,967 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:19:03,968 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:19:03,969 INFO L158 Benchmark]: Toolchain (without parser) took 8845.27ms. Allocated memory was 96.5MB in the beginning and 172.0MB in the end (delta: 75.5MB). Free memory was 61.4MB in the beginning and 68.8MB in the end (delta: -7.4MB). Peak memory consumption was 68.0MB. Max. memory is 16.1GB. [2022-02-21 04:19:03,969 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 96.5MB. Free memory was 71.5MB in the beginning and 71.4MB in the end (delta: 30.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:19:03,970 INFO L158 Benchmark]: CACSL2BoogieTranslator took 459.91ms. Allocated memory is still 96.5MB. Free memory was 61.1MB in the beginning and 60.0MB in the end (delta: 1.1MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. [2022-02-21 04:19:03,970 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.44ms. Allocated memory is still 96.5MB. Free memory was 60.0MB in the beginning and 54.2MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-02-21 04:19:03,971 INFO L158 Benchmark]: Boogie Preprocessor took 63.12ms. Allocated memory is still 96.5MB. Free memory was 53.8MB in the beginning and 50.5MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:19:03,971 INFO L158 Benchmark]: RCFGBuilder took 977.02ms. Allocated memory is still 96.5MB. Free memory was 50.5MB in the beginning and 52.1MB in the end (delta: -1.6MB). Peak memory consumption was 23.4MB. Max. memory is 16.1GB. [2022-02-21 04:19:03,971 INFO L158 Benchmark]: BuchiAutomizer took 7214.48ms. Allocated memory was 96.5MB in the beginning and 172.0MB in the end (delta: 75.5MB). Free memory was 52.1MB in the beginning and 71.9MB in the end (delta: -19.8MB). Peak memory consumption was 85.0MB. Max. memory is 16.1GB. [2022-02-21 04:19:03,972 INFO L158 Benchmark]: Witness Printer took 52.09ms. Allocated memory is still 172.0MB. Free memory was 71.9MB in the beginning and 68.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:19:03,974 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 0.20ms. Allocated memory is still 96.5MB. Free memory was 71.5MB in the beginning and 71.4MB in the end (delta: 30.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 459.91ms. Allocated memory is still 96.5MB. Free memory was 61.1MB in the beginning and 60.0MB in the end (delta: 1.1MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.44ms. Allocated memory is still 96.5MB. Free memory was 60.0MB in the beginning and 54.2MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 63.12ms. Allocated memory is still 96.5MB. Free memory was 53.8MB in the beginning and 50.5MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 977.02ms. Allocated memory is still 96.5MB. Free memory was 50.5MB in the beginning and 52.1MB in the end (delta: -1.6MB). Peak memory consumption was 23.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 7214.48ms. Allocated memory was 96.5MB in the beginning and 172.0MB in the end (delta: 75.5MB). Free memory was 52.1MB in the beginning and 71.9MB in the end (delta: -19.8MB). Peak memory consumption was 85.0MB. Max. memory is 16.1GB. * Witness Printer took 52.09ms. Allocated memory is still 172.0MB. Free memory was 71.9MB in the beginning and 68.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 681 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 7.1s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 3.8s. Construction of modules took 0.2s. Büchi inclusion checks took 2.4s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 572 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.1s Buchi closure took 0.0s. Biggest automaton had 681 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2988 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2988 mSDsluCounter, 3576 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2454 mSDsCounter, 88 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 200 IncrementalHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 88 mSolverCounterUnsat, 1122 mSDtfsCounter, 200 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 577]: 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@455125a1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6516886b=0, NULL=0, tmp___0=0, head=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@72483618=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3519fa6=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@424d71fc=29, tmp___0=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4735dfcf=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@63a7cba=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@77ad371b=0, tmp=0, methaneLevelCritical=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6ffecf04=0, retValue_acc=0, retValue_acc=1, retValue_acc=0, tmp=1, \result=1, \result=1, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4b8f2e5a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@38a34d49=0, tmp___2=29, \result=0, tmp=1, cleanupTimeShifts=4, switchedOnBeforeTS=0, \result=0, tmp___0=0, head=0, \result=1, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, tmp=0, tmp=0, \result=0, tmp=1, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@13dc57ff=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 577]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L416] int cleanupTimeShifts = 4; [L640] int waterLevel = 1; [L641] int methaneLevelCritical = 0; [L746] int pumpRunning = 0; [L747] int systemActive = 1; [L989] int switchedOnBeforeTS ; [L499] int retValue_acc ; [L500] int tmp ; [L504] FCALL select_helpers() [L505] FCALL select_features() [L506] CALL, EXPR valid_product() [L548] int retValue_acc ; [L551] retValue_acc = 1 [L552] return (retValue_acc); [L506] RET, EXPR valid_product() [L506] tmp = valid_product() [L508] COND TRUE \read(tmp) [L510] FCALL setup() [L511] CALL runTest() [L489] CALL __utac_acc__Specification5_spec__1() [L994] switchedOnBeforeTS = 0 [L489] RET __utac_acc__Specification5_spec__1() [L490] CALL test() [L568] int splverifierCounter ; [L569] int tmp ; [L570] int tmp___0 ; [L571] int tmp___1 ; [L572] int tmp___2 ; [L575] splverifierCounter = 0 Loop: [L577] COND TRUE 1 [L579] COND TRUE splverifierCounter < 4 [L585] tmp = __VERIFIER_nondet_int() [L587] COND FALSE !(\read(tmp)) [L595] tmp___0 = __VERIFIER_nondet_int() [L597] COND FALSE !(\read(tmp___0)) [L605] tmp___2 = __VERIFIER_nondet_int() [L607] COND TRUE \read(tmp___2) [L622] CALL timeShift() [L756] CALL __utac_acc__Specification5_spec__2() [L1003] CALL, EXPR isPumpRunning() [L891] int retValue_acc ; [L894] retValue_acc = pumpRunning [L895] return (retValue_acc); [L1003] RET, EXPR isPumpRunning() [L1003] switchedOnBeforeTS = isPumpRunning() [L756] RET __utac_acc__Specification5_spec__2() [L758] COND FALSE !(\read(pumpRunning)) [L765] COND TRUE \read(systemActive) [L767] CALL processEnvironment() [L839] int tmp ; [L842] COND FALSE !(\read(pumpRunning)) [L857] CALL processEnvironment__wrappee__lowWaterSensor() [L813] int tmp ; [L816] COND FALSE !(\read(pumpRunning)) [L831] CALL processEnvironment__wrappee__highWaterSensor() [L787] int tmp ; [L790] COND TRUE ! pumpRunning [L792] CALL, EXPR isHighWaterLevel() [L936] int retValue_acc ; [L937] int tmp ; [L938] int tmp___0 ; [L942] CALL, EXPR isHighWaterSensorDry() [L720] int retValue_acc ; [L723] COND TRUE waterLevel < 2 [L724] retValue_acc = 1 [L725] return (retValue_acc); [L942] RET, EXPR isHighWaterSensorDry() [L942] tmp = isHighWaterSensorDry() [L944] COND TRUE \read(tmp) [L945] tmp___0 = 0 [L949] retValue_acc = tmp___0 [L950] return (retValue_acc); [L792] RET, EXPR isHighWaterLevel() [L792] tmp = isHighWaterLevel() [L794] COND FALSE !(\read(tmp)) [L800] FCALL processEnvironment__wrappee__base() [L831] RET processEnvironment__wrappee__highWaterSensor() [L857] RET processEnvironment__wrappee__lowWaterSensor() [L767] RET processEnvironment() [L773] CALL __utac_acc__Specification5_spec__3() [L1009] int tmp ; [L1010] int tmp___0 ; [L1014] CALL, EXPR getWaterLevel() [L711] int retValue_acc ; [L714] retValue_acc = waterLevel [L715] return (retValue_acc); [L1014] RET, EXPR getWaterLevel() [L1014] tmp = getWaterLevel() [L1016] COND TRUE tmp != 2 [L1018] CALL, EXPR isPumpRunning() [L891] int retValue_acc ; [L894] retValue_acc = pumpRunning [L895] return (retValue_acc); [L1018] RET, EXPR isPumpRunning() [L1018] tmp___0 = isPumpRunning() [L1020] COND FALSE !(\read(tmp___0)) [L773] RET __utac_acc__Specification5_spec__3() [L622] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:19:04,017 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)