./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted-lit/ChenCookFuhsNimkarOHearn-TACAS2014-Introduction.c --full-output --architecture 64bit -------------------------------------------------------------------------------- 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/termination-crafted-lit/ChenCookFuhsNimkarOHearn-TACAS2014-Introduction.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-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 64bit --witnessprinter.graph.data.programhash 75dd2ce3f6219a56f38a72471186bda1e7610d5c 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................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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*64bit*_Bitvector*.epf No suitable settings file found using Termination*64bit*_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 01:16:47,652 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-31 01:16:47,654 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-31 01:16:47,672 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-31 01:16:47,672 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-31 01:16:47,673 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-31 01:16:47,674 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-31 01:16:47,676 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-31 01:16:47,677 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-31 01:16:47,684 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-31 01:16:47,685 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-31 01:16:47,686 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-31 01:16:47,686 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-31 01:16:47,687 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-31 01:16:47,688 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-31 01:16:47,688 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-31 01:16:47,689 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-31 01:16:47,690 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-31 01:16:47,691 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-31 01:16:47,692 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-31 01:16:47,693 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-31 01:16:47,693 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-31 01:16:47,694 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-31 01:16:47,695 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-31 01:16:47,696 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-31 01:16:47,697 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-31 01:16:47,697 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-31 01:16:47,697 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-31 01:16:47,698 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-31 01:16:47,698 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-31 01:16:47,699 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-31 01:16:47,699 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-31 01:16:47,700 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-31 01:16:47,700 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-31 01:16:47,701 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-31 01:16:47,701 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-31 01:16:47,702 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-31 01:16:47,702 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-31 01:16:47,702 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-31 01:16:47,703 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-31 01:16:47,703 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-31 01:16:47,711 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-08-31 01:16:47,726 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-31 01:16:47,727 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-31 01:16:47,727 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-31 01:16:47,727 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-31 01:16:47,728 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-31 01:16:47,728 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-31 01:16:47,728 INFO L138 SettingsManager]: * Use SBE=true [2021-08-31 01:16:47,728 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-31 01:16:47,728 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-31 01:16:47,729 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-31 01:16:47,729 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-31 01:16:47,729 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-31 01:16:47,729 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-31 01:16:47,729 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-31 01:16:47,729 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-31 01:16:47,729 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-31 01:16:47,730 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-31 01:16:47,730 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-31 01:16:47,730 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-31 01:16:47,730 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-31 01:16:47,730 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-31 01:16:47,730 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-31 01:16:47,730 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-31 01:16:47,730 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-31 01:16:47,731 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-31 01:16:47,731 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-31 01:16:47,731 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-31 01:16:47,731 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-31 01:16:47,731 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-31 01:16:47,732 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-31 01:16:47,732 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 75dd2ce3f6219a56f38a72471186bda1e7610d5c [2021-08-31 01:16:47,948 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-31 01:16:47,971 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-31 01:16:47,973 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-31 01:16:47,974 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-31 01:16:47,988 INFO L275 PluginConnector]: CDTParser initialized [2021-08-31 01:16:47,990 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/ChenCookFuhsNimkarOHearn-TACAS2014-Introduction.c [2021-08-31 01:16:48,043 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ea9803ad/edb0bd7df33a4c789d9d681682d62b1d/FLAG63219b165 [2021-08-31 01:16:48,385 INFO L306 CDTParser]: Found 1 translation units. [2021-08-31 01:16:48,385 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/ChenCookFuhsNimkarOHearn-TACAS2014-Introduction.c [2021-08-31 01:16:48,389 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ea9803ad/edb0bd7df33a4c789d9d681682d62b1d/FLAG63219b165 [2021-08-31 01:16:48,836 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ea9803ad/edb0bd7df33a4c789d9d681682d62b1d [2021-08-31 01:16:48,839 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-31 01:16:48,841 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-31 01:16:48,842 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-31 01:16:48,842 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-31 01:16:48,845 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-31 01:16:48,845 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 01:16:48" (1/1) ... [2021-08-31 01:16:48,846 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e92df0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:16:48, skipping insertion in model container [2021-08-31 01:16:48,846 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 01:16:48" (1/1) ... [2021-08-31 01:16:48,851 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-31 01:16:48,863 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-31 01:16:48,938 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-31 01:16:48,940 INFO L203 MainTranslator]: Completed pre-run [2021-08-31 01:16:48,947 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-31 01:16:48,955 INFO L208 MainTranslator]: Completed translation [2021-08-31 01:16:48,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:16:48 WrapperNode [2021-08-31 01:16:48,955 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-31 01:16:48,956 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-31 01:16:48,956 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-31 01:16:48,956 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-31 01:16:48,961 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:16:48" (1/1) ... [2021-08-31 01:16:48,963 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:16:48" (1/1) ... [2021-08-31 01:16:48,972 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-31 01:16:48,973 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-31 01:16:48,973 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-31 01:16:48,973 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-31 01:16:49,019 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:16:48" (1/1) ... [2021-08-31 01:16:49,025 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:16:48" (1/1) ... [2021-08-31 01:16:49,025 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:16:48" (1/1) ... [2021-08-31 01:16:49,025 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:16:48" (1/1) ... [2021-08-31 01:16:49,027 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:16:48" (1/1) ... [2021-08-31 01:16:49,030 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:16:48" (1/1) ... [2021-08-31 01:16:49,030 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:16:48" (1/1) ... [2021-08-31 01:16:49,031 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-31 01:16:49,032 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-31 01:16:49,032 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-31 01:16:49,033 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-31 01:16:49,034 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:16:48" (1/1) ... [2021-08-31 01:16:49,038 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:16:49,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:16:49,053 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 01:16:49,093 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 01:16:49,109 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-31 01:16:49,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-31 01:16:49,183 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-31 01:16:49,183 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-08-31 01:16:49,185 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 01:16:49 BoogieIcfgContainer [2021-08-31 01:16:49,185 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-31 01:16:49,187 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-31 01:16:49,187 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-31 01:16:49,189 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-31 01:16:49,189 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 01:16:49,189 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 31.08 01:16:48" (1/3) ... [2021-08-31 01:16:49,190 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@53191997 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.08 01:16:49, skipping insertion in model container [2021-08-31 01:16:49,190 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 01:16:49,191 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:16:48" (2/3) ... [2021-08-31 01:16:49,191 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@53191997 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.08 01:16:49, skipping insertion in model container [2021-08-31 01:16:49,191 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 01:16:49,191 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 01:16:49" (3/3) ... [2021-08-31 01:16:49,192 INFO L389 chiAutomizerObserver]: Analyzing ICFG ChenCookFuhsNimkarOHearn-TACAS2014-Introduction.c [2021-08-31 01:16:49,244 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-31 01:16:49,247 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-31 01:16:49,247 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-31 01:16:49,247 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-31 01:16:49,247 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-31 01:16:49,247 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-31 01:16:49,248 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-31 01:16:49,248 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-31 01:16:49,257 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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 01:16:49,267 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-08-31 01:16:49,268 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 01:16:49,268 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 01:16:49,271 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-08-31 01:16:49,271 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-08-31 01:16:49,272 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-31 01:16:49,272 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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 01:16:49,272 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-08-31 01:16:49,272 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 01:16:49,273 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 01:16:49,273 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-08-31 01:16:49,273 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-08-31 01:16:49,277 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~k~0, main_~i~0;havoc main_~k~0;havoc main_~i~0;main_~k~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~i~0 := main_#t~nondet1;havoc main_#t~nondet1; 4#L18true assume !(main_~k~0 >= 0);main_~i~0 := -1; 8#L23-1true [2021-08-31 01:16:49,277 INFO L793 eck$LassoCheckResult]: Loop: 8#L23-1true assume !!(main_~i~0 >= 0);main_~i~0 := main_#t~nondet2;havoc main_#t~nondet2; 8#L23-1true [2021-08-31 01:16:49,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:16:49,281 INFO L82 PathProgramCache]: Analyzing trace with hash 998, now seen corresponding path program 1 times [2021-08-31 01:16:49,286 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:16:49,287 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533940828] [2021-08-31 01:16:49,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:16:49,287 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:16:49,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:16:49,332 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:16:49,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:16:49,345 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:16:49,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:16:49,347 INFO L82 PathProgramCache]: Analyzing trace with hash 46, now seen corresponding path program 1 times [2021-08-31 01:16:49,347 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:16:49,348 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359186881] [2021-08-31 01:16:49,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:16:49,348 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:16:49,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:16:49,351 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:16:49,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:16:49,354 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:16:49,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:16:49,355 INFO L82 PathProgramCache]: Analyzing trace with hash 30953, now seen corresponding path program 1 times [2021-08-31 01:16:49,355 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:16:49,355 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221979814] [2021-08-31 01:16:49,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:16:49,356 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:16:49,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:16:49,419 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 01:16:49,420 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-31 01:16:49,420 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221979814] [2021-08-31 01:16:49,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221979814] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-31 01:16:49,420 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-31 01:16:49,421 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-31 01:16:49,421 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185389668] [2021-08-31 01:16:49,451 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-31 01:16:49,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-31 01:16:49,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-31 01:16:49,471 INFO L87 Difference]: Start difference. First operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 01:16:49,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-31 01:16:49,488 INFO L93 Difference]: Finished difference Result 8 states and 9 transitions. [2021-08-31 01:16:49,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-31 01:16:49,493 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 9 transitions. [2021-08-31 01:16:49,493 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-08-31 01:16:49,495 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 3 states and 3 transitions. [2021-08-31 01:16:49,496 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2021-08-31 01:16:49,496 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 [2021-08-31 01:16:49,496 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3 transitions. [2021-08-31 01:16:49,496 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-31 01:16:49,496 INFO L681 BuchiCegarLoop]: Abstraction has 3 states and 3 transitions. [2021-08-31 01:16:49,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3 states and 3 transitions. [2021-08-31 01:16:49,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3 to 3. [2021-08-31 01:16:49,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 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 01:16:49,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3 transitions. [2021-08-31 01:16:49,512 INFO L704 BuchiCegarLoop]: Abstraction has 3 states and 3 transitions. [2021-08-31 01:16:49,512 INFO L587 BuchiCegarLoop]: Abstraction has 3 states and 3 transitions. [2021-08-31 01:16:49,513 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-31 01:16:49,513 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states and 3 transitions. [2021-08-31 01:16:49,513 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-08-31 01:16:49,513 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 01:16:49,513 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 01:16:49,513 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-08-31 01:16:49,514 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-08-31 01:16:49,514 INFO L791 eck$LassoCheckResult]: Stem: 28#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~k~0, main_~i~0;havoc main_~k~0;havoc main_~i~0;main_~k~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~i~0 := main_#t~nondet1;havoc main_#t~nondet1; 26#L18 assume main_~k~0 >= 0; 27#L23-1 [2021-08-31 01:16:49,514 INFO L793 eck$LassoCheckResult]: Loop: 27#L23-1 assume !!(main_~i~0 >= 0);main_~i~0 := main_#t~nondet2;havoc main_#t~nondet2; 27#L23-1 [2021-08-31 01:16:49,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:16:49,515 INFO L82 PathProgramCache]: Analyzing trace with hash 996, now seen corresponding path program 1 times [2021-08-31 01:16:49,515 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:16:49,515 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181360860] [2021-08-31 01:16:49,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:16:49,515 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:16:49,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:16:49,518 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:16:49,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:16:49,521 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:16:49,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:16:49,521 INFO L82 PathProgramCache]: Analyzing trace with hash 46, now seen corresponding path program 2 times [2021-08-31 01:16:49,521 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:16:49,522 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029522011] [2021-08-31 01:16:49,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:16:49,522 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:16:49,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:16:49,524 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:16:49,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:16:49,526 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:16:49,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:16:49,527 INFO L82 PathProgramCache]: Analyzing trace with hash 30891, now seen corresponding path program 1 times [2021-08-31 01:16:49,527 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:16:49,527 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681618518] [2021-08-31 01:16:49,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:16:49,528 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:16:49,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:16:49,531 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:16:49,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:16:49,534 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:16:49,568 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 01:16:49,570 INFO L158 Benchmark]: Toolchain (without parser) took 728.60ms. Allocated memory was 65.0MB in the beginning and 92.3MB in the end (delta: 27.3MB). Free memory was 45.6MB in the beginning and 62.4MB in the end (delta: -16.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-08-31 01:16:49,571 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 65.0MB. Free memory was 47.2MB in the beginning and 47.1MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-31 01:16:49,571 INFO L158 Benchmark]: CACSL2BoogieTranslator took 113.14ms. Allocated memory is still 65.0MB. Free memory was 45.5MB in the beginning and 37.2MB in the end (delta: 8.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-08-31 01:16:49,571 INFO L158 Benchmark]: Boogie Procedure Inliner took 16.57ms. Allocated memory is still 65.0MB. Free memory was 37.0MB in the beginning and 35.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-31 01:16:49,572 INFO L158 Benchmark]: Boogie Preprocessor took 57.76ms. Allocated memory is still 65.0MB. Free memory was 35.8MB in the beginning and 48.8MB in the end (delta: -13.0MB). Peak memory consumption was 4.9MB. Max. memory is 16.1GB. [2021-08-31 01:16:49,572 INFO L158 Benchmark]: RCFGBuilder took 153.50ms. Allocated memory is still 65.0MB. Free memory was 48.8MB in the beginning and 41.8MB in the end (delta: 7.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-08-31 01:16:49,573 INFO L158 Benchmark]: BuchiAutomizer took 382.52ms. Allocated memory was 65.0MB in the beginning and 92.3MB in the end (delta: 27.3MB). Free memory was 41.5MB in the beginning and 62.4MB in the end (delta: -20.9MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. [2021-08-31 01:16:49,575 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 65.0MB. Free memory was 47.2MB in the beginning and 47.1MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 113.14ms. Allocated memory is still 65.0MB. Free memory was 45.5MB in the beginning and 37.2MB in the end (delta: 8.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 16.57ms. Allocated memory is still 65.0MB. Free memory was 37.0MB in the beginning and 35.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 57.76ms. Allocated memory is still 65.0MB. Free memory was 35.8MB in the beginning and 48.8MB in the end (delta: -13.0MB). Peak memory consumption was 4.9MB. Max. memory is 16.1GB. * RCFGBuilder took 153.50ms. Allocated memory is still 65.0MB. Free memory was 48.8MB in the beginning and 41.8MB in the end (delta: 7.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 382.52ms. Allocated memory was 65.0MB in the beginning and 92.3MB in the end (delta: 27.3MB). Free memory was 41.5MB in the beginning and 62.4MB in the end (delta: -20.9MB). Peak memory consumption was 9.9MB. 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 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 3 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 01:16:49,629 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...