./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-15/cstrlen_malloc.i --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-15/cstrlen_malloc.i -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 df00388ee02e9eb4eefa9325fb06df0e14414ced 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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 01:48:53,926 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-31 01:48:53,927 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-31 01:48:53,959 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-31 01:48:53,960 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-31 01:48:53,960 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-31 01:48:53,961 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-31 01:48:53,962 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-31 01:48:53,977 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-31 01:48:53,977 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-31 01:48:53,978 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-31 01:48:53,978 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-31 01:48:53,979 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-31 01:48:53,979 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-31 01:48:53,980 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-31 01:48:53,981 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-31 01:48:53,981 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-31 01:48:53,982 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-31 01:48:53,983 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-31 01:48:53,984 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-31 01:48:53,985 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-31 01:48:53,985 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-31 01:48:53,986 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-31 01:48:53,986 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-31 01:48:53,988 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-31 01:48:53,988 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-31 01:48:53,988 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-31 01:48:53,989 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-31 01:48:53,989 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-31 01:48:53,990 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-31 01:48:53,990 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-31 01:48:53,990 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-31 01:48:53,991 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-31 01:48:53,991 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-31 01:48:53,992 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-31 01:48:53,992 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-31 01:48:53,992 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-31 01:48:53,992 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-31 01:48:53,992 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-31 01:48:53,993 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-31 01:48:53,993 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-31 01:48:54,009 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-08-31 01:48:54,031 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-31 01:48:54,031 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-31 01:48:54,031 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-31 01:48:54,031 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-31 01:48:54,032 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-31 01:48:54,032 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-31 01:48:54,032 INFO L138 SettingsManager]: * Use SBE=true [2021-08-31 01:48:54,032 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-31 01:48:54,032 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-31 01:48:54,032 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-31 01:48:54,032 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-31 01:48:54,033 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-31 01:48:54,033 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-31 01:48:54,033 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-31 01:48:54,033 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-31 01:48:54,033 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-31 01:48:54,033 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-31 01:48:54,033 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-31 01:48:54,033 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-31 01:48:54,033 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-31 01:48:54,033 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-31 01:48:54,033 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-31 01:48:54,033 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-31 01:48:54,034 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-31 01:48:54,034 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-31 01:48:54,034 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-31 01:48:54,034 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-31 01:48:54,034 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-31 01:48:54,034 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-31 01:48:54,035 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-31 01:48:54,035 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> df00388ee02e9eb4eefa9325fb06df0e14414ced [2021-08-31 01:48:54,318 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-31 01:48:54,335 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-31 01:48:54,337 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-31 01:48:54,339 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-31 01:48:54,339 INFO L275 PluginConnector]: CDTParser initialized [2021-08-31 01:48:54,340 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-15/cstrlen_malloc.i [2021-08-31 01:48:54,386 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f85a0be10/7232055080fa40259043edc16a30903b/FLAG4f089f380 [2021-08-31 01:48:54,793 INFO L306 CDTParser]: Found 1 translation units. [2021-08-31 01:48:54,793 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-15/cstrlen_malloc.i [2021-08-31 01:48:54,803 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f85a0be10/7232055080fa40259043edc16a30903b/FLAG4f089f380 [2021-08-31 01:48:54,812 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f85a0be10/7232055080fa40259043edc16a30903b [2021-08-31 01:48:54,814 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-31 01:48:54,815 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-31 01:48:54,816 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-31 01:48:54,816 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-31 01:48:54,818 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-31 01:48:54,818 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 01:48:54" (1/1) ... [2021-08-31 01:48:54,819 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f829556 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:48:54, skipping insertion in model container [2021-08-31 01:48:54,819 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 01:48:54" (1/1) ... [2021-08-31 01:48:54,824 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-31 01:48:54,845 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-31 01:48:55,032 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-31 01:48:55,040 INFO L203 MainTranslator]: Completed pre-run [2021-08-31 01:48:55,072 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-31 01:48:55,117 INFO L208 MainTranslator]: Completed translation [2021-08-31 01:48:55,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:48:55 WrapperNode [2021-08-31 01:48:55,118 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-31 01:48:55,118 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-31 01:48:55,118 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-31 01:48:55,119 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-31 01:48:55,123 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:48:55" (1/1) ... [2021-08-31 01:48:55,131 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:48:55" (1/1) ... [2021-08-31 01:48:55,144 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-31 01:48:55,146 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-31 01:48:55,146 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-31 01:48:55,146 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-31 01:48:55,151 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:48:55" (1/1) ... [2021-08-31 01:48:55,151 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:48:55" (1/1) ... [2021-08-31 01:48:55,161 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:48:55" (1/1) ... [2021-08-31 01:48:55,161 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:48:55" (1/1) ... [2021-08-31 01:48:55,168 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:48:55" (1/1) ... [2021-08-31 01:48:55,172 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:48:55" (1/1) ... [2021-08-31 01:48:55,173 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:48:55" (1/1) ... [2021-08-31 01:48:55,177 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-31 01:48:55,178 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-31 01:48:55,179 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-31 01:48:55,179 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-31 01:48:55,179 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:48:55" (1/1) ... [2021-08-31 01:48:55,184 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:48:55,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:48:55,212 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 01:48:55,264 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 01:48:55,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-31 01:48:55,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-31 01:48:55,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-08-31 01:48:55,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-31 01:48:55,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-31 01:48:55,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-31 01:48:55,414 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-31 01:48:55,415 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-08-31 01:48:55,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 01:48:55 BoogieIcfgContainer [2021-08-31 01:48:55,416 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-31 01:48:55,418 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-31 01:48:55,419 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-31 01:48:55,420 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-31 01:48:55,421 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 01:48:55,421 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 31.08 01:48:54" (1/3) ... [2021-08-31 01:48:55,422 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@32aa2f14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.08 01:48:55, skipping insertion in model container [2021-08-31 01:48:55,422 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 01:48:55,422 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 01:48:55" (2/3) ... [2021-08-31 01:48:55,422 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@32aa2f14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.08 01:48:55, skipping insertion in model container [2021-08-31 01:48:55,422 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 01:48:55,423 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 01:48:55" (3/3) ... [2021-08-31 01:48:55,423 INFO L389 chiAutomizerObserver]: Analyzing ICFG cstrlen_malloc.i [2021-08-31 01:48:55,457 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-31 01:48:55,457 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-31 01:48:55,457 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-31 01:48:55,457 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-31 01:48:55,457 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-31 01:48:55,457 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-31 01:48:55,457 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-31 01:48:55,458 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-31 01:48:55,466 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 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 01:48:55,479 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-08-31 01:48:55,479 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 01:48:55,479 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 01:48:55,483 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-08-31 01:48:55,483 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-08-31 01:48:55,484 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-31 01:48:55,484 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 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 01:48:55,485 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-08-31 01:48:55,485 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 01:48:55,485 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 01:48:55,486 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-08-31 01:48:55,486 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-08-31 01:48:55,492 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 9#L-1true havoc main_#res;havoc main_#t~nondet207, main_#t~malloc208.base, main_#t~malloc208.offset, main_#t~ret209, main_~length1~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~res~0;main_~length1~0 := main_#t~nondet207;havoc main_#t~nondet207; 12#L373true assume !(main_~length1~0 < 1); 10#L373-2true call main_#t~malloc208.base, main_#t~malloc208.offset := #Ultimate.allocOnHeap(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc208.base, main_#t~malloc208.offset;havoc main_#t~malloc208.base, main_#t~malloc208.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);cstrlen_#in~s.base, cstrlen_#in~s.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset;havoc cstrlen_#res;havoc cstrlen_#t~post206.base, cstrlen_#t~post206.offset, cstrlen_#t~mem205, cstrlen_~s.base, cstrlen_~s.offset, cstrlen_~p~0.base, cstrlen_~p~0.offset;cstrlen_~s.base, cstrlen_~s.offset := cstrlen_#in~s.base, cstrlen_#in~s.offset;cstrlen_~p~0.base, cstrlen_~p~0.offset := cstrlen_~s.base, cstrlen_~s.offset; 3#L367-3true [2021-08-31 01:48:55,492 INFO L793 eck$LassoCheckResult]: Loop: 3#L367-3true call cstrlen_#t~mem205 := read~int(cstrlen_~p~0.base, cstrlen_~p~0.offset, 1); 11#L367-1true assume !!(0 != cstrlen_#t~mem205);havoc cstrlen_#t~mem205;cstrlen_#t~post206.base, cstrlen_#t~post206.offset := cstrlen_~p~0.base, cstrlen_~p~0.offset;cstrlen_~p~0.base, cstrlen_~p~0.offset := cstrlen_#t~post206.base, 1 + cstrlen_#t~post206.offset;havoc cstrlen_#t~post206.base, cstrlen_#t~post206.offset; 3#L367-3true [2021-08-31 01:48:55,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:48:55,507 INFO L82 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 1 times [2021-08-31 01:48:55,512 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:48:55,512 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388787132] [2021-08-31 01:48:55,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:48:55,513 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:48:55,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:48:55,583 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:48:55,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:48:55,627 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:48:55,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:48:55,629 INFO L82 PathProgramCache]: Analyzing trace with hash 1414, now seen corresponding path program 1 times [2021-08-31 01:48:55,630 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:48:55,630 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877441768] [2021-08-31 01:48:55,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:48:55,630 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:48:55,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:48:55,634 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:48:55,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:48:55,637 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:48:55,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:48:55,638 INFO L82 PathProgramCache]: Analyzing trace with hash 889568362, now seen corresponding path program 1 times [2021-08-31 01:48:55,638 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 01:48:55,639 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335168527] [2021-08-31 01:48:55,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 01:48:55,639 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 01:48:55,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:48:55,648 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 01:48:55,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 01:48:55,660 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 01:48:55,965 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 01:48:55,965 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 01:48:55,966 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 01:48:55,966 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 01:48:55,966 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-31 01:48:55,966 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:48:55,966 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 01:48:55,966 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 01:48:55,966 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrlen_malloc.i_Iteration1_Lasso [2021-08-31 01:48:55,967 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 01:48:55,967 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 01:48:55,978 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:48:55,982 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:48:55,984 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:48:56,085 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:48:56,087 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:48:56,089 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:48:56,091 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:48:56,093 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:48:56,095 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:48:56,096 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:48:56,098 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:48:56,100 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:48:56,101 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 01:48:56,331 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 01:48:56,334 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-31 01:48:56,335 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:48:56,335 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:48:56,349 INFO L229 MonitoredProcess]: Starting monitored process 2 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 01:48:56,363 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-08-31 01:48:56,365 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-31 01:48:56,372 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 01:48:56,372 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 01:48:56,373 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 01:48:56,373 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 01:48:56,373 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 01:48:56,374 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 01:48:56,374 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 01:48:56,387 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 01:48:56,417 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-08-31 01:48:56,417 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:48:56,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:48:56,424 INFO L229 MonitoredProcess]: Starting monitored process 3 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 01:48:56,433 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-08-31 01:48:56,434 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-31 01:48:56,440 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 01:48:56,441 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 01:48:56,441 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 01:48:56,441 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 01:48:56,441 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 01:48:56,443 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 01:48:56,443 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 01:48:56,456 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 01:48:56,477 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-08-31 01:48:56,477 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:48:56,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:48:56,478 INFO L229 MonitoredProcess]: Starting monitored process 4 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 01:48:56,496 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-31 01:48:56,503 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 01:48:56,503 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 01:48:56,503 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 01:48:56,503 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 01:48:56,513 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-31 01:48:56,514 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-31 01:48:56,533 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-08-31 01:48:56,543 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 01:48:56,579 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-08-31 01:48:56,579 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:48:56,580 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:48:56,580 INFO L229 MonitoredProcess]: Starting monitored process 5 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 01:48:56,581 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-08-31 01:48:56,582 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-31 01:48:56,589 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 01:48:56,589 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2021-08-31 01:48:56,589 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 01:48:56,589 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 01:48:56,596 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2021-08-31 01:48:56,596 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-31 01:48:56,611 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 01:48:56,627 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-08-31 01:48:56,627 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:48:56,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:48:56,628 INFO L229 MonitoredProcess]: Starting monitored process 6 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 01:48:56,629 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-08-31 01:48:56,630 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-31 01:48:56,637 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 01:48:56,637 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 01:48:56,637 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 01:48:56,637 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 01:48:56,639 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-31 01:48:56,639 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-31 01:48:56,654 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 01:48:56,672 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-08-31 01:48:56,672 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:48:56,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:48:56,673 INFO L229 MonitoredProcess]: Starting monitored process 7 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 01:48:56,674 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-08-31 01:48:56,675 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-31 01:48:56,682 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 01:48:56,682 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 01:48:56,682 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 01:48:56,682 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 01:48:56,686 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-31 01:48:56,686 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-31 01:48:56,701 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 01:48:56,719 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-08-31 01:48:56,719 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:48:56,719 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:48:56,720 INFO L229 MonitoredProcess]: Starting monitored process 8 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 01:48:56,721 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-08-31 01:48:56,722 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-31 01:48:56,728 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 01:48:56,729 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 01:48:56,729 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 01:48:56,729 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 01:48:56,735 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-31 01:48:56,735 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-31 01:48:56,750 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-31 01:48:56,768 INFO L443 ModelExtractionUtils]: Simplification made 13 calls to the SMT solver. [2021-08-31 01:48:56,769 INFO L444 ModelExtractionUtils]: 13 out of 25 variables were initially zero. Simplification set additionally 9 variables to zero. [2021-08-31 01:48:56,770 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 01:48:56,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 01:48:56,797 INFO L229 MonitoredProcess]: Starting monitored process 9 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 01:48:56,798 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-08-31 01:48:56,799 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-31 01:48:56,813 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-08-31 01:48:56,814 INFO L513 LassoAnalysis]: Proved termination. [2021-08-31 01:48:56,814 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrlen_~p~0.offset, v_rep(select #length ULTIMATE.start_cstrlen_~p~0.base)_1) = -1*ULTIMATE.start_cstrlen_~p~0.offset + 1*v_rep(select #length ULTIMATE.start_cstrlen_~p~0.base)_1 Supporting invariants [] [2021-08-31 01:48:56,844 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-08-31 01:48:56,850 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2021-08-31 01:48:56,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 01:48:56,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:48:56,875 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-31 01:48:56,876 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:48:56,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 01:48:56,889 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-31 01:48:56,889 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 01:48:56,903 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 01:48:56,925 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-08-31 01:48:56,928 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 01:48:56,981 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) Result 23 states and 26 transitions. Complement of second has 5 states. [2021-08-31 01:48:56,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-08-31 01:48:56,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 01:48:56,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2021-08-31 01:48:56,988 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 4 letters. Loop has 2 letters. [2021-08-31 01:48:56,989 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:48:56,989 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 6 letters. Loop has 2 letters. [2021-08-31 01:48:56,989 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:48:56,990 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 4 letters. Loop has 4 letters. [2021-08-31 01:48:56,990 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 01:48:56,990 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 26 transitions. [2021-08-31 01:48:56,992 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-31 01:48:56,995 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 0 states and 0 transitions. [2021-08-31 01:48:56,995 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-08-31 01:48:56,995 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-08-31 01:48:56,996 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-08-31 01:48:56,996 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-31 01:48:56,996 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-31 01:48:56,996 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-31 01:48:56,996 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-31 01:48:56,996 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-31 01:48:56,996 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-08-31 01:48:56,997 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-31 01:48:56,997 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-08-31 01:48:56,998 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 01:48:57,002 INFO L158 Benchmark]: Toolchain (without parser) took 2186.99ms. Allocated memory was 71.3MB in the beginning and 102.8MB in the end (delta: 31.5MB). Free memory was 52.6MB in the beginning and 60.4MB in the end (delta: -7.9MB). Peak memory consumption was 23.4MB. Max. memory is 16.1GB. [2021-08-31 01:48:57,003 INFO L158 Benchmark]: CDTParser took 1.30ms. Allocated memory is still 71.3MB. Free memory is still 52.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-08-31 01:48:57,004 INFO L158 Benchmark]: CACSL2BoogieTranslator took 302.15ms. Allocated memory is still 71.3MB. Free memory was 52.4MB in the beginning and 47.4MB in the end (delta: 5.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-08-31 01:48:57,004 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.76ms. Allocated memory is still 71.3MB. Free memory was 47.4MB in the beginning and 45.6MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-31 01:48:57,005 INFO L158 Benchmark]: Boogie Preprocessor took 31.39ms. Allocated memory is still 71.3MB. Free memory was 45.6MB in the beginning and 44.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-31 01:48:57,008 INFO L158 Benchmark]: RCFGBuilder took 238.32ms. Allocated memory is still 71.3MB. Free memory was 44.3MB in the beginning and 35.9MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-08-31 01:48:57,009 INFO L158 Benchmark]: BuchiAutomizer took 1582.94ms. Allocated memory was 71.3MB in the beginning and 102.8MB in the end (delta: 31.5MB). Free memory was 35.6MB in the beginning and 60.4MB in the end (delta: -24.8MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. [2021-08-31 01:48:57,012 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.30ms. Allocated memory is still 71.3MB. Free memory is still 52.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 302.15ms. Allocated memory is still 71.3MB. Free memory was 52.4MB in the beginning and 47.4MB in the end (delta: 5.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.76ms. Allocated memory is still 71.3MB. Free memory was 47.4MB in the beginning and 45.6MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.39ms. Allocated memory is still 71.3MB. Free memory was 45.6MB in the beginning and 44.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 238.32ms. Allocated memory is still 71.3MB. Free memory was 44.3MB in the beginning and 35.9MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1582.94ms. Allocated memory was 71.3MB in the beginning and 102.8MB in the end (delta: 31.5MB). Free memory was 35.6MB in the beginning and 60.4MB in the end (delta: -24.8MB). Peak memory consumption was 7.2MB. 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 (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * p + unknown-#length-unknown[p] and consists of 4 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 01:48:57,061 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-08-31 01:48:57,252 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...