./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product59.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 5fbdf5bf Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -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_product59.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 c9413dd793f1d68cdbd482b32ad92680b7805316 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis No suitable file found in config dir /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config using search string *Termination*32bit*_Bitvector*.epf No suitable settings file found using Termination*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: ClassCastException: class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator cannot be cast to class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData (de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator and de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData are in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @560348e6) --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-31 04:14:30,665 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-31 04:14:30,668 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-31 04:14:30,706 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-31 04:14:30,706 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-31 04:14:30,710 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-31 04:14:30,711 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-31 04:14:30,718 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-31 04:14:30,724 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-31 04:14:30,725 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-31 04:14:30,727 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-31 04:14:30,731 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-31 04:14:30,731 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-31 04:14:30,737 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-31 04:14:30,739 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-31 04:14:30,741 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-31 04:14:30,745 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-31 04:14:30,748 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-31 04:14:30,750 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-31 04:14:30,752 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-31 04:14:30,756 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-31 04:14:30,757 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-31 04:14:30,758 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-31 04:14:30,758 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-31 04:14:30,760 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-31 04:14:30,760 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-31 04:14:30,760 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-31 04:14:30,761 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-31 04:14:30,761 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-31 04:14:30,762 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-31 04:14:30,762 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-31 04:14:30,763 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-31 04:14:30,764 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-31 04:14:30,764 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-31 04:14:30,765 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-31 04:14:30,765 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-31 04:14:30,766 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-31 04:14:30,766 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-31 04:14:30,767 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-31 04:14:30,767 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-31 04:14:30,768 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-31 04:14:30,769 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-08-31 04:14:30,789 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-31 04:14:30,789 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-31 04:14:30,790 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-31 04:14:30,790 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-31 04:14:30,791 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-31 04:14:30,791 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-31 04:14:30,791 INFO L138 SettingsManager]: * Use SBE=true [2021-08-31 04:14:30,791 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-31 04:14:30,792 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-31 04:14:30,792 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-31 04:14:30,792 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-31 04:14:30,792 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-31 04:14:30,792 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-31 04:14:30,793 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-31 04:14:30,793 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-31 04:14:30,793 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-31 04:14:30,793 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-31 04:14:30,793 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-31 04:14:30,793 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-31 04:14:30,794 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-31 04:14:30,794 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-31 04:14:30,794 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-31 04:14:30,794 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-31 04:14:30,794 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-31 04:14:30,794 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-31 04:14:30,795 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-31 04:14:30,795 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-31 04:14:30,795 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-31 04:14:30,795 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-31 04:14:30,795 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-31 04:14:30,796 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-31 04:14:30,796 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-31 04:14:30,797 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-31 04:14:30,797 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c9413dd793f1d68cdbd482b32ad92680b7805316 [2021-08-31 04:14:31,074 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-31 04:14:31,092 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-31 04:14:31,094 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-31 04:14:31,095 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-31 04:14:31,096 INFO L275 PluginConnector]: CDTParser initialized [2021-08-31 04:14:31,097 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product59.cil.c [2021-08-31 04:14:31,160 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c31fc3abd/46fe1c9203e941069e4dc4c438545211/FLAG23dd2d57e [2021-08-31 04:14:31,675 INFO L306 CDTParser]: Found 1 translation units. [2021-08-31 04:14:31,675 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product59.cil.c [2021-08-31 04:14:31,688 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c31fc3abd/46fe1c9203e941069e4dc4c438545211/FLAG23dd2d57e [2021-08-31 04:14:32,154 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c31fc3abd/46fe1c9203e941069e4dc4c438545211 [2021-08-31 04:14:32,158 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-31 04:14:32,159 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-31 04:14:32,161 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-31 04:14:32,161 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-31 04:14:32,164 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-31 04:14:32,165 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 04:14:32" (1/1) ... [2021-08-31 04:14:32,165 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30cdc66a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:14:32, skipping insertion in model container [2021-08-31 04:14:32,166 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 04:14:32" (1/1) ... [2021-08-31 04:14:32,172 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-31 04:14:32,204 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-31 04:14:32,428 WARN L228 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_product59.cil.c[16678,16691] [2021-08-31 04:14:32,443 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-31 04:14:32,465 INFO L203 MainTranslator]: Completed pre-run [2021-08-31 04:14:32,524 WARN L228 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_product59.cil.c[16678,16691] [2021-08-31 04:14:32,529 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-31 04:14:32,550 INFO L208 MainTranslator]: Completed translation [2021-08-31 04:14:32,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:14:32 WrapperNode [2021-08-31 04:14:32,550 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-31 04:14:32,551 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-31 04:14:32,551 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-31 04:14:32,552 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-31 04:14:32,557 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:14:32" (1/1) ... [2021-08-31 04:14:32,584 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:14:32" (1/1) ... [2021-08-31 04:14:32,633 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-31 04:14:32,634 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-31 04:14:32,634 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-31 04:14:32,634 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-31 04:14:32,641 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:14:32" (1/1) ... [2021-08-31 04:14:32,641 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:14:32" (1/1) ... [2021-08-31 04:14:32,645 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:14:32" (1/1) ... [2021-08-31 04:14:32,645 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:14:32" (1/1) ... [2021-08-31 04:14:32,657 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:14:32" (1/1) ... [2021-08-31 04:14:32,664 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:14:32" (1/1) ... [2021-08-31 04:14:32,667 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:14:32" (1/1) ... [2021-08-31 04:14:32,671 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-31 04:14:32,672 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-31 04:14:32,672 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-31 04:14:32,672 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-31 04:14:32,673 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:14:32" (1/1) ... [2021-08-31 04:14:32,685 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 04:14:32,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 04:14:32,713 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) [2021-08-31 04:14:32,738 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 [2021-08-31 04:14:32,752 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-31 04:14:32,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-31 04:14:32,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-31 04:14:32,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-31 04:14:33,332 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-31 04:14:33,332 INFO L299 CfgBuilder]: Removed 210 assume(true) statements. [2021-08-31 04:14:33,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 04:14:33 BoogieIcfgContainer [2021-08-31 04:14:33,335 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-31 04:14:33,336 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-31 04:14:33,336 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-31 04:14:33,339 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-31 04:14:33,340 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 04:14:33,340 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 31.08 04:14:32" (1/3) ... [2021-08-31 04:14:33,341 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@c97251a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.08 04:14:33, skipping insertion in model container [2021-08-31 04:14:33,341 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 04:14:33,341 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:14:32" (2/3) ... [2021-08-31 04:14:33,341 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@c97251a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.08 04:14:33, skipping insertion in model container [2021-08-31 04:14:33,342 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 04:14:33,342 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 04:14:33" (3/3) ... [2021-08-31 04:14:33,343 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product59.cil.c [2021-08-31 04:14:33,389 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-31 04:14:33,389 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-31 04:14:33,389 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-31 04:14:33,389 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-31 04:14:33,389 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-31 04:14:33,389 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-31 04:14:33,390 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-31 04:14:33,390 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-31 04:14:33,408 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 143 states, 142 states have (on average 1.5) internal successors, (213), 142 states have internal predecessors, (213), 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) [2021-08-31 04:14:33,437 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 93 [2021-08-31 04:14:33,437 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 04:14:33,438 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 04:14:33,443 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-31 04:14:33,444 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-31 04:14:33,444 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-31 04:14:33,445 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 143 states, 142 states have (on average 1.5) internal successors, (213), 142 states have internal predecessors, (213), 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) [2021-08-31 04:14:33,452 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 93 [2021-08-31 04:14:33,452 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 04:14:33,452 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 04:14:33,453 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-31 04:14:33,453 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-31 04:14:33,459 INFO L791 eck$LassoCheckResult]: Stem: 134#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(13);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(110, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 3 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string32.base, #t~string32.offset, 1);call write~init~int(80, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(117, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(109, #t~string32.base, 3 + #t~string32.offset, 1);call write~init~int(112, #t~string32.base, 4 + #t~string32.offset, 1);call write~init~int(58, #t~string32.base, 5 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 6 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string34.base, #t~string34.offset, 1);call write~init~int(110, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 2 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string36.base, #t~string36.offset, 1);call write~init~int(102, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(102, #t~string36.base, 2 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 3 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string38.base, #t~string38.offset, 1);call write~init~int(32, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 2 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string40.base, #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 1 + #t~string40.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(25);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 50#L-1true havoc main_#res;havoc main_#t~ret81, main_~retValue_acc~11, main_~tmp~10;havoc main_~retValue_acc~11;havoc main_~tmp~10; 106#L1008true havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 9#L1016true main_#t~ret81 := valid_product_#res;main_~tmp~10 := main_#t~ret81;havoc main_#t~ret81; 13#L972true assume 0 != main_~tmp~10; 112#L945true ~switchedOnBeforeTS~0 := 0; 79#L843true havoc test_#t~nondet17, test_#t~nondet18, test_#t~nondet19, test_#t~nondet20, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 83#L864-1true [2021-08-31 04:14:33,460 INFO L793 eck$LassoCheckResult]: Loop: 83#L864-1true assume !false; 18#L167true assume test_~splverifierCounter~0 < 4; 5#L168true test_~tmp~0 := test_#t~nondet17;havoc test_#t~nondet17; 55#L176true assume !(0 != test_~tmp~0); 26#L176-1true test_~tmp___0~0 := test_#t~nondet18;havoc test_#t~nondet18; 70#L186true assume !(0 != test_~tmp___0~0); 29#L186-1true test_~tmp___2~0 := test_#t~nondet19;havoc test_#t~nondet19; 71#L196true assume 0 != test_~tmp___2~0; 116#L202-1true havoc __utac_acc__Specification5_spec__2_#t~ret78;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 124#L368true __utac_acc__Specification5_spec__2_#t~ret78 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret78;havoc __utac_acc__Specification5_spec__2_#t~ret78; 53#L853true assume !(0 != ~pumpRunning~0); 34#L239true assume !(0 != ~systemActive~0); 72#L246true havoc __utac_acc__Specification5_spec__3_#t~ret79, __utac_acc__Specification5_spec__3_#t~ret80, __utac_acc__Specification5_spec__3_~tmp~9, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~9;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 96#L125true __utac_acc__Specification5_spec__3_#t~ret79 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~9 := __utac_acc__Specification5_spec__3_#t~ret79;havoc __utac_acc__Specification5_spec__3_#t~ret79; 131#L864true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9); 83#L864-1true [2021-08-31 04:14:33,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 04:14:33,465 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2021-08-31 04:14:33,473 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 04:14:33,473 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119260253] [2021-08-31 04:14:33,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 04:14:33,474 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 04:14:33,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:14:33,665 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 04:14:33,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:14:33,793 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 04:14:33,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 04:14:33,795 INFO L82 PathProgramCache]: Analyzing trace with hash -239367595, now seen corresponding path program 1 times [2021-08-31 04:14:33,795 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 04:14:33,796 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701729480] [2021-08-31 04:14:33,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 04:14:33,796 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 04:14:33,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:14:33,802 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 04:14:33,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:14:33,809 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 04:14:33,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 04:14:33,811 INFO L82 PathProgramCache]: Analyzing trace with hash 1694657615, now seen corresponding path program 1 times [2021-08-31 04:14:33,811 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 04:14:33,811 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780094125] [2021-08-31 04:14:33,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 04:14:33,812 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 04:14:33,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 04:14:33,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 04:14:33,959 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-31 04:14:33,959 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780094125] [2021-08-31 04:14:33,960 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780094125] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-31 04:14:33,960 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-31 04:14:33,960 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-31 04:14:33,962 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464690326] [2021-08-31 04:14:34,097 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-31 04:14:34,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-31 04:14:34,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-08-31 04:14:34,134 INFO L87 Difference]: Start difference. First operand has 143 states, 142 states have (on average 1.5) internal successors, (213), 142 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 04:14:35,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-31 04:14:35,206 INFO L93 Difference]: Finished difference Result 337 states and 478 transitions. [2021-08-31 04:14:35,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-31 04:14:35,212 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 337 states and 478 transitions. [2021-08-31 04:14:35,219 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 219 [2021-08-31 04:14:35,231 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 337 states to 316 states and 457 transitions. [2021-08-31 04:14:35,233 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 316 [2021-08-31 04:14:35,237 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 316 [2021-08-31 04:14:35,238 INFO L73 IsDeterministic]: Start isDeterministic. Operand 316 states and 457 transitions. [2021-08-31 04:14:35,242 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-31 04:14:35,243 INFO L681 BuchiCegarLoop]: Abstraction has 316 states and 457 transitions. [2021-08-31 04:14:35,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states and 457 transitions. [2021-08-31 04:14:35,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 185. [2021-08-31 04:14:35,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 185 states have (on average 1.4378378378378378) internal successors, (266), 184 states have internal predecessors, (266), 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) [2021-08-31 04:14:35,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 266 transitions. [2021-08-31 04:14:35,292 INFO L704 BuchiCegarLoop]: Abstraction has 185 states and 266 transitions. [2021-08-31 04:14:35,292 INFO L587 BuchiCegarLoop]: Abstraction has 185 states and 266 transitions. [2021-08-31 04:14:35,292 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-31 04:14:35,292 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 185 states and 266 transitions. [2021-08-31 04:14:35,297 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 128 [2021-08-31 04:14:35,298 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 04:14:35,298 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 04:14:35,299 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-31 04:14:35,299 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-31 04:14:35,300 INFO L791 eck$LassoCheckResult]: Stem: 632#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(13);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(110, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 3 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string32.base, #t~string32.offset, 1);call write~init~int(80, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(117, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(109, #t~string32.base, 3 + #t~string32.offset, 1);call write~init~int(112, #t~string32.base, 4 + #t~string32.offset, 1);call write~init~int(58, #t~string32.base, 5 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 6 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string34.base, #t~string34.offset, 1);call write~init~int(110, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 2 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string36.base, #t~string36.offset, 1);call write~init~int(102, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(102, #t~string36.base, 2 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 3 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string38.base, #t~string38.offset, 1);call write~init~int(32, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 2 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string40.base, #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 1 + #t~string40.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(25);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 578#L-1 havoc main_#res;havoc main_#t~ret81, main_~retValue_acc~11, main_~tmp~10;havoc main_~retValue_acc~11;havoc main_~tmp~10; 579#L1008 havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 504#L1016 main_#t~ret81 := valid_product_#res;main_~tmp~10 := main_#t~ret81;havoc main_#t~ret81; 505#L972 assume 0 != main_~tmp~10; 511#L945 ~switchedOnBeforeTS~0 := 0; 604#L843 havoc test_#t~nondet17, test_#t~nondet18, test_#t~nondet19, test_#t~nondet20, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 553#L864-1 [2021-08-31 04:14:35,300 INFO L793 eck$LassoCheckResult]: Loop: 553#L864-1 assume !false; 520#L167 assume test_~splverifierCounter~0 < 4; 498#L168 test_~tmp~0 := test_#t~nondet17;havoc test_#t~nondet17; 499#L176 assume !(0 != test_~tmp~0); 534#L176-1 test_~tmp___0~0 := test_#t~nondet18;havoc test_#t~nondet18; 535#L186 assume !(0 != test_~tmp___0~0); 501#L186-1 test_~tmp___2~0 := test_#t~nondet19;havoc test_#t~nondet19; 540#L196 assume 0 != test_~tmp___2~0; 601#L202-1 havoc __utac_acc__Specification5_spec__2_#t~ret78;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 623#L368 __utac_acc__Specification5_spec__2_#t~ret78 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret78;havoc __utac_acc__Specification5_spec__2_#t~ret78; 583#L853 assume !(0 != ~pumpRunning~0); 549#L239 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret22, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 550#L297 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret21, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; 526#L271-1 assume !(0 == ~pumpRunning~0); 528#L246 havoc __utac_acc__Specification5_spec__3_#t~ret79, __utac_acc__Specification5_spec__3_#t~ret80, __utac_acc__Specification5_spec__3_~tmp~9, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~9;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 602#L125 __utac_acc__Specification5_spec__3_#t~ret79 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~9 := __utac_acc__Specification5_spec__3_#t~ret79;havoc __utac_acc__Specification5_spec__3_#t~ret79; 613#L864 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9); 553#L864-1 [2021-08-31 04:14:35,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 04:14:35,301 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2021-08-31 04:14:35,301 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 04:14:35,301 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780717576] [2021-08-31 04:14:35,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 04:14:35,302 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 04:14:35,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:14:35,368 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 04:14:35,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:14:35,454 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 04:14:35,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 04:14:35,460 INFO L82 PathProgramCache]: Analyzing trace with hash -1384715234, now seen corresponding path program 1 times [2021-08-31 04:14:35,460 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 04:14:35,460 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170155549] [2021-08-31 04:14:35,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 04:14:35,461 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 04:14:35,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 04:14:35,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 04:14:35,483 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-31 04:14:35,483 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170155549] [2021-08-31 04:14:35,488 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170155549] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-31 04:14:35,489 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-31 04:14:35,489 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-31 04:14:35,489 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387861926] [2021-08-31 04:14:35,490 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-31 04:14:35,490 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-31 04:14:35,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-31 04:14:35,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-31 04:14:35,492 INFO L87 Difference]: Start difference. First operand 185 states and 266 transitions. cyclomatic complexity: 84 Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2021-08-31 04:14:35,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-31 04:14:35,787 INFO L93 Difference]: Finished difference Result 232 states and 317 transitions. [2021-08-31 04:14:35,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-31 04:14:35,788 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 232 states and 317 transitions. [2021-08-31 04:14:35,790 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 164 [2021-08-31 04:14:35,792 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 232 states to 232 states and 317 transitions. [2021-08-31 04:14:35,792 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 232 [2021-08-31 04:14:35,792 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 232 [2021-08-31 04:14:35,792 INFO L73 IsDeterministic]: Start isDeterministic. Operand 232 states and 317 transitions. [2021-08-31 04:14:35,793 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-31 04:14:35,793 INFO L681 BuchiCegarLoop]: Abstraction has 232 states and 317 transitions. [2021-08-31 04:14:35,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states and 317 transitions. [2021-08-31 04:14:35,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 232. [2021-08-31 04:14:35,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 232 states have (on average 1.3663793103448276) internal successors, (317), 231 states have internal predecessors, (317), 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) [2021-08-31 04:14:35,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 317 transitions. [2021-08-31 04:14:35,800 INFO L704 BuchiCegarLoop]: Abstraction has 232 states and 317 transitions. [2021-08-31 04:14:35,800 INFO L587 BuchiCegarLoop]: Abstraction has 232 states and 317 transitions. [2021-08-31 04:14:35,800 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-08-31 04:14:35,800 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 232 states and 317 transitions. [2021-08-31 04:14:35,802 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 164 [2021-08-31 04:14:35,802 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 04:14:35,802 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 04:14:35,802 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-31 04:14:35,803 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] [2021-08-31 04:14:35,803 INFO L791 eck$LassoCheckResult]: Stem: 1068#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(13);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(110, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 3 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string32.base, #t~string32.offset, 1);call write~init~int(80, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(117, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(109, #t~string32.base, 3 + #t~string32.offset, 1);call write~init~int(112, #t~string32.base, 4 + #t~string32.offset, 1);call write~init~int(58, #t~string32.base, 5 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 6 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string34.base, #t~string34.offset, 1);call write~init~int(110, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 2 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string36.base, #t~string36.offset, 1);call write~init~int(102, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(102, #t~string36.base, 2 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 3 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string38.base, #t~string38.offset, 1);call write~init~int(32, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 2 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string40.base, #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 1 + #t~string40.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(25);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 1003#L-1 havoc main_#res;havoc main_#t~ret81, main_~retValue_acc~11, main_~tmp~10;havoc main_~retValue_acc~11;havoc main_~tmp~10; 1004#L1008 havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 927#L1016 main_#t~ret81 := valid_product_#res;main_~tmp~10 := main_#t~ret81;havoc main_#t~ret81; 928#L972 assume 0 != main_~tmp~10; 935#L945 ~switchedOnBeforeTS~0 := 0; 1034#L843 havoc test_#t~nondet17, test_#t~nondet18, test_#t~nondet19, test_#t~nondet20, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1035#L864-1 [2021-08-31 04:14:35,803 INFO L793 eck$LassoCheckResult]: Loop: 1035#L864-1 assume !false; 1122#L167 assume test_~splverifierCounter~0 < 4; 921#L168 test_~tmp~0 := test_#t~nondet17;havoc test_#t~nondet17; 922#L176 assume !(0 != test_~tmp~0); 958#L176-1 test_~tmp___0~0 := test_#t~nondet18;havoc test_#t~nondet18; 959#L186 assume !(0 != test_~tmp___0~0); 924#L186-1 test_~tmp___2~0 := test_#t~nondet19;havoc test_#t~nondet19; 964#L196 assume 0 != test_~tmp___2~0; 1027#L202-1 havoc __utac_acc__Specification5_spec__2_#t~ret78;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 1057#L368 __utac_acc__Specification5_spec__2_#t~ret78 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret78;havoc __utac_acc__Specification5_spec__2_#t~ret78; 1008#L853 assume !(0 != ~pumpRunning~0); 973#L239 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret22, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 974#L297 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret21, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; 951#L271-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret41, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 952#L133-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 990#L138-1 isHighWaterLevel_#t~ret41 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret41;havoc isHighWaterLevel_#t~ret41; 991#L417-3 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~1 := 0; 1031#L417-5 isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; 1023#L423-1 processEnvironment__wrappee__highWaterSensor_#t~ret21 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~1 := processEnvironment__wrappee__highWaterSensor_#t~ret21;havoc processEnvironment__wrappee__highWaterSensor_#t~ret21; 1024#L275-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1); 989#L246 havoc __utac_acc__Specification5_spec__3_#t~ret79, __utac_acc__Specification5_spec__3_#t~ret80, __utac_acc__Specification5_spec__3_~tmp~9, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~9;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 1127#L125 __utac_acc__Specification5_spec__3_#t~ret79 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~9 := __utac_acc__Specification5_spec__3_#t~ret79;havoc __utac_acc__Specification5_spec__3_#t~ret79; 1125#L864 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9); 1035#L864-1 [2021-08-31 04:14:35,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 04:14:35,804 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2021-08-31 04:14:35,804 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 04:14:35,804 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802259245] [2021-08-31 04:14:35,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 04:14:35,805 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 04:14:35,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:14:35,839 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 04:14:35,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:14:35,908 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 04:14:35,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 04:14:35,909 INFO L82 PathProgramCache]: Analyzing trace with hash -1333768502, now seen corresponding path program 1 times [2021-08-31 04:14:35,909 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 04:14:35,909 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698001219] [2021-08-31 04:14:35,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 04:14:35,909 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 04:14:35,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 04:14:35,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 04:14:35,940 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-31 04:14:35,940 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698001219] [2021-08-31 04:14:35,940 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698001219] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-31 04:14:35,941 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-31 04:14:35,941 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-31 04:14:35,941 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000777435] [2021-08-31 04:14:35,941 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-31 04:14:35,942 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-31 04:14:35,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-31 04:14:35,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-31 04:14:35,942 INFO L87 Difference]: Start difference. First operand 232 states and 317 transitions. cyclomatic complexity: 88 Second operand has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 04:14:36,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-31 04:14:36,779 INFO L93 Difference]: Finished difference Result 636 states and 853 transitions. [2021-08-31 04:14:36,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-31 04:14:36,780 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 636 states and 853 transitions. [2021-08-31 04:14:36,785 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 421 [2021-08-31 04:14:36,788 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 636 states to 636 states and 853 transitions. [2021-08-31 04:14:36,789 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 636 [2021-08-31 04:14:36,789 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 636 [2021-08-31 04:14:36,789 INFO L73 IsDeterministic]: Start isDeterministic. Operand 636 states and 853 transitions. [2021-08-31 04:14:36,790 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-31 04:14:36,790 INFO L681 BuchiCegarLoop]: Abstraction has 636 states and 853 transitions. [2021-08-31 04:14:36,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 636 states and 853 transitions. [2021-08-31 04:14:36,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 636 to 457. [2021-08-31 04:14:36,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 457 states, 457 states have (on average 1.3326039387308535) internal successors, (609), 456 states have internal predecessors, (609), 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) [2021-08-31 04:14:36,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 609 transitions. [2021-08-31 04:14:36,802 INFO L704 BuchiCegarLoop]: Abstraction has 457 states and 609 transitions. [2021-08-31 04:14:36,802 INFO L587 BuchiCegarLoop]: Abstraction has 457 states and 609 transitions. [2021-08-31 04:14:36,802 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-08-31 04:14:36,802 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 457 states and 609 transitions. [2021-08-31 04:14:36,805 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 328 [2021-08-31 04:14:36,805 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 04:14:36,805 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 04:14:36,806 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-31 04:14:36,806 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] [2021-08-31 04:14:36,806 INFO L791 eck$LassoCheckResult]: Stem: 1958#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(13);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(110, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 3 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string32.base, #t~string32.offset, 1);call write~init~int(80, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(117, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(109, #t~string32.base, 3 + #t~string32.offset, 1);call write~init~int(112, #t~string32.base, 4 + #t~string32.offset, 1);call write~init~int(58, #t~string32.base, 5 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 6 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string34.base, #t~string34.offset, 1);call write~init~int(110, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 2 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string36.base, #t~string36.offset, 1);call write~init~int(102, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(102, #t~string36.base, 2 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 3 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string38.base, #t~string38.offset, 1);call write~init~int(32, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 2 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string40.base, #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 1 + #t~string40.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(25);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 1887#L-1 havoc main_#res;havoc main_#t~ret81, main_~retValue_acc~11, main_~tmp~10;havoc main_~retValue_acc~11;havoc main_~tmp~10; 1888#L1008 havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 1811#L1016 main_#t~ret81 := valid_product_#res;main_~tmp~10 := main_#t~ret81;havoc main_#t~ret81; 1812#L972 assume 0 != main_~tmp~10; 1819#L945 ~switchedOnBeforeTS~0 := 0; 1919#L843 havoc test_#t~nondet17, test_#t~nondet18, test_#t~nondet19, test_#t~nondet20, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1861#L864-1 [2021-08-31 04:14:36,806 INFO L793 eck$LassoCheckResult]: Loop: 1861#L864-1 assume !false; 1828#L167 assume test_~splverifierCounter~0 < 4; 1829#L168 test_~tmp~0 := test_#t~nondet17;havoc test_#t~nondet17; 2240#L176 assume !(0 != test_~tmp~0); 2239#L176-1 test_~tmp___0~0 := test_#t~nondet18;havoc test_#t~nondet18; 2237#L186 assume !(0 != test_~tmp___0~0); 2234#L186-1 test_~tmp___2~0 := test_#t~nondet19;havoc test_#t~nondet19; 1911#L196 assume 0 != test_~tmp___2~0; 1913#L202-1 havoc __utac_acc__Specification5_spec__2_#t~ret78;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 2238#L368 __utac_acc__Specification5_spec__2_#t~ret78 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret78;havoc __utac_acc__Specification5_spec__2_#t~ret78; 2235#L853 assume !(0 != ~pumpRunning~0); 1857#L239 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret22, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 1858#L297 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret21, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; 1835#L271-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret41, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 1836#L133-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 1874#L138-1 isHighWaterLevel_#t~ret41 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret41;havoc isHighWaterLevel_#t~ret41; 1875#L417-3 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~1 := 0; 1916#L417-5 isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; 1908#L423-1 processEnvironment__wrappee__highWaterSensor_#t~ret21 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~1 := processEnvironment__wrappee__highWaterSensor_#t~ret21;havoc processEnvironment__wrappee__highWaterSensor_#t~ret21; 1909#L275-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1); 1873#L246 havoc __utac_acc__Specification5_spec__3_#t~ret79, __utac_acc__Specification5_spec__3_#t~ret80, __utac_acc__Specification5_spec__3_~tmp~9, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~9;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 1914#L125 __utac_acc__Specification5_spec__3_#t~ret79 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~9 := __utac_acc__Specification5_spec__3_#t~ret79;havoc __utac_acc__Specification5_spec__3_#t~ret79; 1956#L864 assume 2 != __utac_acc__Specification5_spec__3_~tmp~9;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 1957#L368-1 __utac_acc__Specification5_spec__3_#t~ret80 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~3 := __utac_acc__Specification5_spec__3_#t~ret80;havoc __utac_acc__Specification5_spec__3_#t~ret80; 1859#L868 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~3); 1861#L864-1 [2021-08-31 04:14:36,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 04:14:36,807 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2021-08-31 04:14:36,807 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 04:14:36,808 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689120276] [2021-08-31 04:14:36,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 04:14:36,808 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 04:14:36,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:14:36,832 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 04:14:36,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:14:36,858 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 04:14:36,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 04:14:36,859 INFO L82 PathProgramCache]: Analyzing trace with hash -1851287387, now seen corresponding path program 1 times [2021-08-31 04:14:36,859 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 04:14:36,860 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79511467] [2021-08-31 04:14:36,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 04:14:36,860 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 04:14:36,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:14:36,864 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 04:14:36,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:14:36,870 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 04:14:36,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 04:14:36,871 INFO L82 PathProgramCache]: Analyzing trace with hash -1914713569, now seen corresponding path program 1 times [2021-08-31 04:14:36,871 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 04:14:36,871 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470417621] [2021-08-31 04:14:36,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 04:14:36,872 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 04:14:36,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:14:36,891 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 04:14:36,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:14:36,942 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 04:15:19,964 WARN L210 SmtUtils]: Spent 42.79s on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2021-08-31 04:16:04,866 WARN L210 SmtUtils]: Spent 21.35s on a formula simplification that was a NOOP. DAG size: 435 [2021-08-31 04:16:04,966 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer has thrown an exception: java.lang.ClassCastException: class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator cannot be cast to class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData (de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator and de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData are in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @560348e6) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoopBenchmark.prettyprintBenchmarkData(BuchiCegarLoopBenchmark.java:178) at de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData.toString(StatisticsData.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerTimingBenchmark.toString(BuchiAutomizerTimingBenchmark.java:44) at de.uni_freiburg.informatik.ultimate.core.lib.results.StatisticsResult.getLongDescription(StatisticsResult.java:58) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.reportResult(BuchiAutomizerObserver.java:375) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.doTerminationAnalysis(BuchiAutomizerObserver.java:161) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.finish(BuchiAutomizerObserver.java:398) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-08-31 04:16:04,969 INFO L158 Benchmark]: Toolchain (without parser) took 92809.82ms. Allocated memory was 56.6MB in the beginning and 100.7MB in the end (delta: 44.0MB). Free memory was 33.7MB in the beginning and 30.4MB in the end (delta: 3.3MB). Peak memory consumption was 63.8MB. Max. memory is 16.1GB. [2021-08-31 04:16:04,970 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 56.6MB. Free memory was 38.3MB in the beginning and 38.2MB in the end (delta: 29.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-31 04:16:04,970 INFO L158 Benchmark]: CACSL2BoogieTranslator took 389.92ms. Allocated memory is still 56.6MB. Free memory was 33.5MB in the beginning and 32.5MB in the end (delta: 1.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-08-31 04:16:04,971 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.63ms. Allocated memory is still 56.6MB. Free memory was 32.5MB in the beginning and 28.5MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-08-31 04:16:04,971 INFO L158 Benchmark]: Boogie Preprocessor took 37.95ms. Allocated memory is still 56.6MB. Free memory was 28.5MB in the beginning and 25.5MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-31 04:16:04,972 INFO L158 Benchmark]: RCFGBuilder took 662.62ms. Allocated memory was 56.6MB in the beginning and 69.2MB in the end (delta: 12.6MB). Free memory was 25.5MB in the beginning and 37.1MB in the end (delta: -11.6MB). Peak memory consumption was 16.4MB. Max. memory is 16.1GB. [2021-08-31 04:16:04,973 INFO L158 Benchmark]: BuchiAutomizer took 91632.93ms. Allocated memory was 69.2MB in the beginning and 100.7MB in the end (delta: 31.5MB). Free memory was 37.1MB in the beginning and 30.4MB in the end (delta: 6.7MB). Peak memory consumption was 54.1MB. Max. memory is 16.1GB. [2021-08-31 04:16:04,981 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 56.6MB. Free memory was 38.3MB in the beginning and 38.2MB in the end (delta: 29.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 389.92ms. Allocated memory is still 56.6MB. Free memory was 33.5MB in the beginning and 32.5MB in the end (delta: 1.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.63ms. Allocated memory is still 56.6MB. Free memory was 32.5MB in the beginning and 28.5MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.95ms. Allocated memory is still 56.6MB. Free memory was 28.5MB in the beginning and 25.5MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 662.62ms. Allocated memory was 56.6MB in the beginning and 69.2MB in the end (delta: 12.6MB). Free memory was 25.5MB in the beginning and 37.1MB in the end (delta: -11.6MB). Peak memory consumption was 16.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 91632.93ms. Allocated memory was 69.2MB in the beginning and 100.7MB in the end (delta: 31.5MB). Free memory was 37.1MB in the beginning and 30.4MB in the end (delta: 6.7MB). Peak memory consumption was 54.1MB. 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 457 locations. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - ExceptionOrErrorResult: ClassCastException: class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator cannot be cast to class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData (de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator and de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData are in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @560348e6) de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: ClassCastException: class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator cannot be cast to class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData (de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator and de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData are in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @560348e6): de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoopBenchmark.prettyprintBenchmarkData(BuchiCegarLoopBenchmark.java:178) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-08-31 04:16:05,015 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...