./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/email_spec4_product25.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 5fbdf5bf Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/email_spec4_product25.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f122b4dbad13b9c0843c2f00531ecba622508e94 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis No suitable file found in config dir /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config using search string *Termination*32bit*_Bitvector*.epf No suitable settings file found using Termination*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: ClassCastException: class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator cannot be cast to class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData (de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator and de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData are in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @560348e6) --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-31 03:37:05,608 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-31 03:37:05,610 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-31 03:37:05,638 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-31 03:37:05,638 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-31 03:37:05,639 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-31 03:37:05,640 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-31 03:37:05,641 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-31 03:37:05,642 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-31 03:37:05,643 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-31 03:37:05,643 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-31 03:37:05,644 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-31 03:37:05,645 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-31 03:37:05,647 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-31 03:37:05,649 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-31 03:37:05,650 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-31 03:37:05,651 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-31 03:37:05,656 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-31 03:37:05,657 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-31 03:37:05,661 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-31 03:37:05,664 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-31 03:37:05,665 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-31 03:37:05,666 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-31 03:37:05,667 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-31 03:37:05,668 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-31 03:37:05,669 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-31 03:37:05,669 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-31 03:37:05,669 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-31 03:37:05,670 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-31 03:37:05,670 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-31 03:37:05,670 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-31 03:37:05,671 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-31 03:37:05,671 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-31 03:37:05,672 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-31 03:37:05,673 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-31 03:37:05,673 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-31 03:37:05,673 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-31 03:37:05,673 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-31 03:37:05,674 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-31 03:37:05,674 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-31 03:37:05,675 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-31 03:37:05,675 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-08-31 03:37:05,692 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-31 03:37:05,695 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-31 03:37:05,696 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-31 03:37:05,696 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-31 03:37:05,697 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-31 03:37:05,697 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-31 03:37:05,698 INFO L138 SettingsManager]: * Use SBE=true [2021-08-31 03:37:05,698 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-31 03:37:05,698 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-31 03:37:05,698 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-31 03:37:05,699 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-31 03:37:05,699 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-31 03:37:05,699 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-31 03:37:05,699 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-31 03:37:05,699 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-31 03:37:05,699 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-31 03:37:05,699 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-31 03:37:05,700 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-31 03:37:05,700 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-31 03:37:05,700 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-31 03:37:05,700 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-31 03:37:05,700 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-31 03:37:05,700 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-31 03:37:05,700 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-31 03:37:05,701 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-31 03:37:05,701 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-31 03:37:05,701 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-31 03:37:05,701 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-31 03:37:05,701 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-31 03:37:05,701 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-31 03:37:05,701 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-31 03:37:05,702 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-31 03:37:05,702 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-31 03:37:05,703 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f122b4dbad13b9c0843c2f00531ecba622508e94 [2021-08-31 03:37:05,954 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-31 03:37:05,976 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-31 03:37:05,978 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-31 03:37:05,979 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-31 03:37:05,980 INFO L275 PluginConnector]: CDTParser initialized [2021-08-31 03:37:05,984 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec4_product25.cil.c [2021-08-31 03:37:06,038 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d41d7820/630e9f2e49004298b30ab6c43e7af4e9/FLAGa9461bfa5 [2021-08-31 03:37:06,482 INFO L306 CDTParser]: Found 1 translation units. [2021-08-31 03:37:06,483 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec4_product25.cil.c [2021-08-31 03:37:06,497 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d41d7820/630e9f2e49004298b30ab6c43e7af4e9/FLAGa9461bfa5 [2021-08-31 03:37:06,509 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d41d7820/630e9f2e49004298b30ab6c43e7af4e9 [2021-08-31 03:37:06,513 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-31 03:37:06,514 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-31 03:37:06,515 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-31 03:37:06,516 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-31 03:37:06,518 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-31 03:37:06,518 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 03:37:06" (1/1) ... [2021-08-31 03:37:06,519 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59f4daad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:37:06, skipping insertion in model container [2021-08-31 03:37:06,519 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 03:37:06" (1/1) ... [2021-08-31 03:37:06,523 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-31 03:37:06,567 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-31 03:37:06,919 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec4_product25.cil.c[63252,63265] [2021-08-31 03:37:06,919 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-31 03:37:06,927 INFO L203 MainTranslator]: Completed pre-run [2021-08-31 03:37:06,982 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec4_product25.cil.c[63252,63265] [2021-08-31 03:37:06,982 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-31 03:37:07,002 INFO L208 MainTranslator]: Completed translation [2021-08-31 03:37:07,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:37:07 WrapperNode [2021-08-31 03:37:07,003 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-31 03:37:07,004 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-31 03:37:07,004 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-31 03:37:07,004 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-31 03:37:07,008 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:37:07" (1/1) ... [2021-08-31 03:37:07,024 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:37:07" (1/1) ... [2021-08-31 03:37:07,101 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-31 03:37:07,102 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-31 03:37:07,102 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-31 03:37:07,102 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-31 03:37:07,107 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:37:07" (1/1) ... [2021-08-31 03:37:07,108 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:37:07" (1/1) ... [2021-08-31 03:37:07,119 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:37:07" (1/1) ... [2021-08-31 03:37:07,119 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:37:07" (1/1) ... [2021-08-31 03:37:07,150 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:37:07" (1/1) ... [2021-08-31 03:37:07,189 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:37:07" (1/1) ... [2021-08-31 03:37:07,196 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:37:07" (1/1) ... [2021-08-31 03:37:07,234 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-31 03:37:07,238 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-31 03:37:07,239 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-31 03:37:07,239 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-31 03:37:07,240 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:37:07" (1/1) ... [2021-08-31 03:37:07,245 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 03:37:07,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 03:37:07,261 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 03:37:07,279 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 03:37:07,288 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-08-31 03:37:07,288 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-31 03:37:07,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-31 03:37:07,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-31 03:37:07,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-31 03:37:08,074 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-31 03:37:08,075 INFO L299 CfgBuilder]: Removed 621 assume(true) statements. [2021-08-31 03:37:08,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 03:37:08 BoogieIcfgContainer [2021-08-31 03:37:08,078 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-31 03:37:08,080 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-31 03:37:08,080 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-31 03:37:08,082 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-31 03:37:08,082 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 03:37:08,082 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 31.08 03:37:06" (1/3) ... [2021-08-31 03:37:08,083 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@77c8d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.08 03:37:08, skipping insertion in model container [2021-08-31 03:37:08,083 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 03:37:08,083 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:37:07" (2/3) ... [2021-08-31 03:37:08,084 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@77c8d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.08 03:37:08, skipping insertion in model container [2021-08-31 03:37:08,084 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 03:37:08,084 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 03:37:08" (3/3) ... [2021-08-31 03:37:08,085 INFO L389 chiAutomizerObserver]: Analyzing ICFG email_spec4_product25.cil.c [2021-08-31 03:37:08,122 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-31 03:37:08,123 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-31 03:37:08,123 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-31 03:37:08,123 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-31 03:37:08,123 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-31 03:37:08,123 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-31 03:37:08,123 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-31 03:37:08,123 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-31 03:37:08,146 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 906 states, 905 states have (on average 1.7259668508287294) internal successors, (1562), 905 states have internal predecessors, (1562), 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 03:37:08,192 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 255 [2021-08-31 03:37:08,193 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 03:37:08,193 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 03:37:08,199 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-31 03:37:08,199 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2021-08-31 03:37:08,199 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-31 03:37:08,201 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 906 states, 905 states have (on average 1.7259668508287294) internal successors, (1562), 905 states have internal predecessors, (1562), 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 03:37:08,216 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 255 [2021-08-31 03:37:08,216 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 03:37:08,216 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 03:37:08,218 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-31 03:37:08,218 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2021-08-31 03:37:08,223 INFO L791 eck$LassoCheckResult]: Stem: 468#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(28);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string7.base, #t~string7.offset, 1);call write~init~int(115, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(10, #t~string7.base, 2 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 3 + #t~string7.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(21);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(21);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(30);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(9);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(25);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(25);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(10);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(12);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(10);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(18);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(13);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(16);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(25);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(10);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(34);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(16);call #t~string82.base, #t~string82.offset := #Ultimate.allocOnStack(20);call #t~string85.base, #t~string85.offset := #Ultimate.allocOnStack(21);call #t~string93.base, #t~string93.offset := #Ultimate.allocOnStack(44);call #t~string98.base, #t~string98.offset := #Ultimate.allocOnStack(44);call #t~string100.base, #t~string100.offset := #Ultimate.allocOnStack(9);call #t~string102.base, #t~string102.offset := #Ultimate.allocOnStack(9);call #t~string104.base, #t~string104.offset := #Ultimate.allocOnStack(11);call #t~string108.base, #t~string108.offset := #Ultimate.allocOnStack(19);call #t~string111.base, #t~string111.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string111.base, #t~string111.offset, 1);call write~init~int(100, #t~string111.base, 1 + #t~string111.offset, 1);call write~init~int(10, #t~string111.base, 2 + #t~string111.offset, 1);call write~init~int(0, #t~string111.base, 3 + #t~string111.offset, 1);call #t~string114.base, #t~string114.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string114.base, #t~string114.offset, 1);call write~init~int(100, #t~string114.base, 1 + #t~string114.offset, 1);call write~init~int(10, #t~string114.base, 2 + #t~string114.offset, 1);call write~init~int(0, #t~string114.base, 3 + #t~string114.offset, 1);call #t~string121.base, #t~string121.offset := #Ultimate.allocOnStack(13);~head~0.base, ~head~0.offset := 0, 0;~__SELECTED_FEATURE_Base~0 := 0;~__SELECTED_FEATURE_Keys~0 := 0;~__SELECTED_FEATURE_Encrypt~0 := 0;~__SELECTED_FEATURE_AutoResponder~0 := 0;~__SELECTED_FEATURE_AddressBook~0 := 0;~__SELECTED_FEATURE_Sign~0 := 0;~__SELECTED_FEATURE_Forward~0 := 0;~__SELECTED_FEATURE_Verify~0 := 0;~__SELECTED_FEATURE_Decrypt~0 := 0;~__GUIDSL_ROOT_PRODUCTION~0 := 0;~__GUIDSL_NON_TERMINAL_main~0 := 0;~queue_empty~0 := 1;~queued_message~0 := 0;~queued_client~0 := 0;~__ste_Email_counter~0 := 0;~__ste_email_id0~0 := 0;~__ste_email_id1~0 := 0;~__ste_email_from0~0 := 0;~__ste_email_from1~0 := 0;~__ste_email_to0~0 := 0;~__ste_email_to1~0 := 0;~__ste_email_subject0~0.base, ~__ste_email_subject0~0.offset := 0, 0;~__ste_email_subject1~0.base, ~__ste_email_subject1~0.offset := 0, 0;~__ste_email_body0~0.base, ~__ste_email_body0~0.offset := 0, 0;~__ste_email_body1~0.base, ~__ste_email_body1~0.offset := 0, 0;~__ste_email_isEncrypted0~0 := 0;~__ste_email_isEncrypted1~0 := 0;~__ste_email_encryptionKey0~0 := 0;~__ste_email_encryptionKey1~0 := 0;~__ste_email_isSigned0~0 := 0;~__ste_email_isSigned1~0 := 0;~__ste_email_signKey0~0 := 0;~__ste_email_signKey1~0 := 0;~__ste_email_isSignatureVerified0~0 := 0;~__ste_email_isSignatureVerified1~0 := 0;~bob~0 := 0;~rjh~0 := 0;~chuck~0 := 0;~__ste_Client_counter~0 := 0;~__ste_client_name0~0.base, ~__ste_client_name0~0.offset := 0, 0;~__ste_client_name1~0.base, ~__ste_client_name1~0.offset := 0, 0;~__ste_client_name2~0.base, ~__ste_client_name2~0.offset := 0, 0;~__ste_client_outbuffer0~0 := 0;~__ste_client_outbuffer1~0 := 0;~__ste_client_outbuffer2~0 := 0;~__ste_client_outbuffer3~0 := 0;~__ste_ClientAddressBook_size0~0 := 0;~__ste_ClientAddressBook_size1~0 := 0;~__ste_ClientAddressBook_size2~0 := 0;~__ste_Client_AddressBook0_Alias0~0 := 0;~__ste_Client_AddressBook0_Alias1~0 := 0;~__ste_Client_AddressBook0_Alias2~0 := 0;~__ste_Client_AddressBook1_Alias0~0 := 0;~__ste_Client_AddressBook1_Alias1~0 := 0;~__ste_Client_AddressBook1_Alias2~0 := 0;~__ste_Client_AddressBook2_Alias0~0 := 0;~__ste_Client_AddressBook2_Alias1~0 := 0;~__ste_Client_AddressBook2_Alias2~0 := 0;~__ste_Client_AddressBook0_Address0~0 := 0;~__ste_Client_AddressBook0_Address1~0 := 0;~__ste_Client_AddressBook0_Address2~0 := 0;~__ste_Client_AddressBook1_Address0~0 := 0;~__ste_Client_AddressBook1_Address1~0 := 0;~__ste_Client_AddressBook1_Address2~0 := 0;~__ste_Client_AddressBook2_Address0~0 := 0;~__ste_Client_AddressBook2_Address1~0 := 0;~__ste_Client_AddressBook2_Address2~0 := 0;~__ste_client_autoResponse0~0 := 0;~__ste_client_autoResponse1~0 := 0;~__ste_client_autoResponse2~0 := 0;~__ste_client_privateKey0~0 := 0;~__ste_client_privateKey1~0 := 0;~__ste_client_privateKey2~0 := 0;~__ste_ClientKeyring_size0~0 := 0;~__ste_ClientKeyring_size1~0 := 0;~__ste_ClientKeyring_size2~0 := 0;~__ste_Client_Keyring0_User0~0 := 0;~__ste_Client_Keyring0_User1~0 := 0;~__ste_Client_Keyring0_User2~0 := 0;~__ste_Client_Keyring1_User0~0 := 0;~__ste_Client_Keyring1_User1~0 := 0;~__ste_Client_Keyring1_User2~0 := 0;~__ste_Client_Keyring2_User0~0 := 0;~__ste_Client_Keyring2_User1~0 := 0;~__ste_Client_Keyring2_User2~0 := 0;~__ste_Client_Keyring0_PublicKey0~0 := 0;~__ste_Client_Keyring0_PublicKey1~0 := 0;~__ste_Client_Keyring0_PublicKey2~0 := 0;~__ste_Client_Keyring1_PublicKey0~0 := 0;~__ste_Client_Keyring1_PublicKey1~0 := 0;~__ste_Client_Keyring1_PublicKey2~0 := 0;~__ste_Client_Keyring2_PublicKey0~0 := 0;~__ste_Client_Keyring2_PublicKey1~0 := 0;~__ste_Client_Keyring2_PublicKey2~0 := 0;~__ste_client_forwardReceiver0~0 := 0;~__ste_client_forwardReceiver1~0 := 0;~__ste_client_forwardReceiver2~0 := 0;~__ste_client_forwardReceiver3~0 := 0;~__ste_client_idCounter0~0 := 0;~__ste_client_idCounter1~0 := 0;~__ste_client_idCounter2~0 := 0; 827#L-1true havoc main_#res;havoc main_#t~ret106, main_~retValue_acc~23, main_~tmp~15;havoc main_~retValue_acc~23;havoc main_~tmp~15; 768#L1875true havoc valid_product_#res;havoc valid_product_~retValue_acc~25;havoc valid_product_~retValue_acc~25;valid_product_~retValue_acc~25 := 1;valid_product_#res := valid_product_~retValue_acc~25; 267#L1883true main_#t~ret106 := valid_product_#res;main_~tmp~15 := main_#t~ret106;havoc main_#t~ret106; 13#L1459true assume 0 != main_~tmp~15;havoc setup_#t~nondet101, setup_#t~nondet103, setup_#t~nondet105, setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset, setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset, setup_~__cil_tmp3~3.base, setup_~__cil_tmp3~3.offset;havoc setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset;havoc setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset;havoc setup_~__cil_tmp3~3.base, setup_~__cil_tmp3~3.offset;~bob~0 := 1;setup_bob_#in~bob___0 := ~bob~0;havoc setup_bob_~bob___0;setup_bob_~bob___0 := setup_bob_#in~bob___0;setup_bob__wrappee__Base_#in~bob___0 := setup_bob_~bob___0;havoc setup_bob__wrappee__Base_~bob___0;setup_bob__wrappee__Base_~bob___0 := setup_bob__wrappee__Base_#in~bob___0;setClientId_#in~handle, setClientId_#in~value := setup_bob__wrappee__Base_~bob___0, setup_bob__wrappee__Base_~bob___0;havoc setClientId_~handle, setClientId_~value;setClientId_~handle := setClientId_#in~handle;setClientId_~value := setClientId_#in~value; 374#L2933true assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 766#L2939-2true setClientPrivateKey_#in~handle, setClientPrivateKey_#in~value := setup_bob_~bob___0, 123;havoc setClientPrivateKey_~handle, setClientPrivateKey_~value;setClientPrivateKey_~handle := setClientPrivateKey_#in~handle;setClientPrivateKey_~value := setClientPrivateKey_#in~value; 642#L2498true assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 574#L2504-2true setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset := #t~string100.base, #t~string100.offset;havoc setup_#t~nondet101;~rjh~0 := 2;setup_rjh_#in~rjh___0 := ~rjh~0;havoc setup_rjh_~rjh___0;setup_rjh_~rjh___0 := setup_rjh_#in~rjh___0;setup_rjh__wrappee__Base_#in~rjh___0 := setup_rjh_~rjh___0;havoc setup_rjh__wrappee__Base_~rjh___0;setup_rjh__wrappee__Base_~rjh___0 := setup_rjh__wrappee__Base_#in~rjh___0;setClientId_#in~handle, setClientId_#in~value := setup_rjh__wrappee__Base_~rjh___0, setup_rjh__wrappee__Base_~rjh___0;havoc setClientId_~handle, setClientId_~value;setClientId_~handle := setClientId_#in~handle;setClientId_~value := setClientId_#in~value; 400#L2933-2true assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 130#L2939-5true setClientPrivateKey_#in~handle, setClientPrivateKey_#in~value := setup_rjh_~rjh___0, 456;havoc setClientPrivateKey_~handle, setClientPrivateKey_~value;setClientPrivateKey_~handle := setClientPrivateKey_#in~handle;setClientPrivateKey_~value := setClientPrivateKey_#in~value; 368#L2498-2true assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 607#L2504-5true setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset := #t~string102.base, #t~string102.offset;havoc setup_#t~nondet103;~chuck~0 := 3;setup_chuck_#in~chuck___0 := ~chuck~0;havoc setup_chuck_~chuck___0;setup_chuck_~chuck___0 := setup_chuck_#in~chuck___0;setup_chuck__wrappee__Base_#in~chuck___0 := setup_chuck_~chuck___0;havoc setup_chuck__wrappee__Base_~chuck___0;setup_chuck__wrappee__Base_~chuck___0 := setup_chuck__wrappee__Base_#in~chuck___0;setClientId_#in~handle, setClientId_#in~value := setup_chuck__wrappee__Base_~chuck___0, setup_chuck__wrappee__Base_~chuck___0;havoc setClientId_~handle, setClientId_~value;setClientId_~handle := setClientId_#in~handle;setClientId_~value := setClientId_#in~value; 904#L2933-4true assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 701#L2939-8true setClientPrivateKey_#in~handle, setClientPrivateKey_#in~value := setup_chuck_~chuck___0, 789;havoc setClientPrivateKey_~handle, setClientPrivateKey_~value;setClientPrivateKey_~handle := setClientPrivateKey_#in~handle;setClientPrivateKey_~value := setClientPrivateKey_#in~value; 382#L2498-4true assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 536#L2504-8true setup_~__cil_tmp3~3.base, setup_~__cil_tmp3~3.offset := #t~string104.base, #t~string104.offset;havoc setup_#t~nondet105; 319#L1446true havoc test_#t~nondet125, test_#t~nondet126, test_#t~nondet127, test_#t~nondet128, test_#t~nondet129, test_#t~nondet130, test_#t~nondet131, test_#t~nondet132, test_#t~nondet133, test_#t~nondet134, test_#t~nondet135, test_~op1~0, test_~op2~0, test_~op3~0, test_~op4~0, test_~op5~0, test_~op6~0, test_~op7~0, test_~op8~0, test_~op9~0, test_~op10~0, test_~op11~0, test_~splverifierCounter~0, test_~tmp~18, test_~tmp___0~7, test_~tmp___1~4, test_~tmp___2~3, test_~tmp___3~1, test_~tmp___4~1, test_~tmp___5~0, test_~tmp___6~0, test_~tmp___7~0, test_~tmp___8~0, test_~tmp___9~0;havoc test_~op1~0;havoc test_~op2~0;havoc test_~op3~0;havoc test_~op4~0;havoc test_~op5~0;havoc test_~op6~0;havoc test_~op7~0;havoc test_~op8~0;havoc test_~op9~0;havoc test_~op10~0;havoc test_~op11~0;havoc test_~splverifierCounter~0;havoc test_~tmp~18;havoc test_~tmp___0~7;havoc test_~tmp___1~4;havoc test_~tmp___2~3;havoc test_~tmp___3~1;havoc test_~tmp___4~1;havoc test_~tmp___5~0;havoc test_~tmp___6~0;havoc test_~tmp___7~0;havoc test_~tmp___8~0;havoc test_~tmp___9~0;test_~op1~0 := 0;test_~op2~0 := 0;test_~op3~0 := 0;test_~op4~0 := 0;test_~op5~0 := 0;test_~op6~0 := 0;test_~op7~0 := 0;test_~op8~0 := 0;test_~op9~0 := 0;test_~op10~0 := 0;test_~op11~0 := 0;test_~splverifierCounter~0 := 0; 57#L1822-1true [2021-08-31 03:37:08,224 INFO L793 eck$LassoCheckResult]: Loop: 57#L1822-1true assume !false; 639#L1674true assume test_~splverifierCounter~0 < 4; 746#L1675true test_~splverifierCounter~0 := 1 + test_~splverifierCounter~0; 846#L1681true assume !(0 == test_~op1~0); 224#L1694true assume 0 == test_~op2~0;test_~tmp___8~0 := test_#t~nondet126;havoc test_#t~nondet126; 676#L1699true assume 0 != test_~tmp___8~0;test_~op2~0 := 1; 57#L1822-1true [2021-08-31 03:37:08,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 03:37:08,227 INFO L82 PathProgramCache]: Analyzing trace with hash 1291925977, now seen corresponding path program 1 times [2021-08-31 03:37:08,242 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 03:37:08,243 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469897724] [2021-08-31 03:37:08,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 03:37:08,244 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 03:37:08,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 03:37:08,519 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 03:37:08,519 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-31 03:37:08,519 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469897724] [2021-08-31 03:37:08,520 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469897724] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-31 03:37:08,521 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-31 03:37:08,521 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-31 03:37:08,523 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588383405] [2021-08-31 03:37:08,533 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-08-31 03:37:08,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 03:37:08,535 INFO L82 PathProgramCache]: Analyzing trace with hash 590492675, now seen corresponding path program 1 times [2021-08-31 03:37:08,535 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 03:37:08,535 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419123502] [2021-08-31 03:37:08,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 03:37:08,536 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 03:37:08,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 03:37:08,549 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 03:37:08,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 03:37:08,584 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 03:37:08,658 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 03:37:08,659 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 03:37:08,659 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 03:37:08,659 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 03:37:08,659 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-31 03:37:08,660 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 03:37:08,660 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 03:37:08,660 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 03:37:08,660 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec4_product25.cil.c_Iteration1_Loop [2021-08-31 03:37:08,660 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 03:37:08,661 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 03:37:08,674 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 03:37:08,683 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 03:37:08,688 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 03:37:08,693 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 03:37:08,755 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 03:37:08,756 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-31 03:37:08,758 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 03:37:08,758 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 03:37:08,761 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 03:37:08,777 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 03:37:08,778 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 03:37:08,790 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 03:37:08,807 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 03:37:08,808 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 03:37:08,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 03:37:08,808 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 03:37:08,809 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 03:37:08,810 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-31 03:37:08,811 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 03:37:08,833 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-31 03:37:08,852 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 03:37:08,852 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 03:37:08,852 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 03:37:08,852 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 03:37:08,852 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 03:37:08,853 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-31 03:37:08,853 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 03:37:08,853 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 03:37:08,853 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 03:37:08,853 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec4_product25.cil.c_Iteration1_Loop [2021-08-31 03:37:08,853 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 03:37:08,853 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 03:37:08,854 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 03:37:08,859 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 03:37:08,864 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 03:37:08,868 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 03:37:08,912 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 03:37:08,915 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-31 03:37:08,918 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 03:37:08,918 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 03:37:08,921 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 03:37:08,922 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 03:37:08,923 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 03:37:08,931 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 03:37:08,931 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 03:37:08,931 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 03:37:08,931 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 03:37:08,932 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 03:37:08,934 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 03:37:08,934 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 03:37:08,952 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-31 03:37:08,957 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-08-31 03:37:08,957 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-08-31 03:37:08,958 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 03:37:08,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 03:37:08,969 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 03:37:08,973 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-31 03:37:08,973 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-08-31 03:37:08,973 INFO L513 LassoAnalysis]: Proved termination. [2021-08-31 03:37:08,974 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_test_~op2~0) = -2*ULTIMATE.start_test_~op2~0 + 1 Supporting invariants [] [2021-08-31 03:37:08,980 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 03:37:08,990 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 03:37:08,992 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-08-31 03:37:09,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 03:37:09,054 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 03:37:09,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 03:37:09,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 631 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-31 03:37:09,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 03:37:09,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 03:37:09,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-31 03:37:09,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 03:37:09,278 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 03:37:09,301 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 03:37:09,304 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 906 states, 905 states have (on average 1.7259668508287294) internal successors, (1562), 905 states have internal predecessors, (1562), 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 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 03:37:13,938 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 906 states, 905 states have (on average 1.7259668508287294) internal successors, (1562), 905 states have internal predecessors, (1562), 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 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 4160 states and 7132 transitions. Complement of second has 7 states. [2021-08-31 03:37:13,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-08-31 03:37:13,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 03:37:13,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 4118 transitions. [2021-08-31 03:37:13,947 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 4118 transitions. Stem has 18 letters. Loop has 6 letters. [2021-08-31 03:37:13,948 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 03:37:13,948 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 4118 transitions. Stem has 24 letters. Loop has 6 letters. [2021-08-31 03:37:13,948 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 03:37:13,948 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 4118 transitions. Stem has 18 letters. Loop has 12 letters. [2021-08-31 03:37:13,948 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 03:37:13,949 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 4160 states and 7132 transitions. [2021-08-31 03:37:13,972 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 509 [2021-08-31 03:37:14,007 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 4160 states to 1051 states and 1924 transitions. [2021-08-31 03:37:14,008 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 540 [2021-08-31 03:37:14,009 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 541 [2021-08-31 03:37:14,009 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1051 states and 1924 transitions. [2021-08-31 03:37:14,010 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-31 03:37:14,010 INFO L681 BuchiCegarLoop]: Abstraction has 1051 states and 1924 transitions. [2021-08-31 03:37:14,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1051 states and 1924 transitions. [2021-08-31 03:37:14,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1051 to 542. [2021-08-31 03:37:14,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 542 states, 542 states have (on average 1.8247232472324724) internal successors, (989), 541 states have internal predecessors, (989), 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 03:37:14,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 989 transitions. [2021-08-31 03:37:14,056 INFO L704 BuchiCegarLoop]: Abstraction has 542 states and 989 transitions. [2021-08-31 03:37:14,056 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-31 03:37:14,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-31 03:37:14,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-31 03:37:14,061 INFO L87 Difference]: Start difference. First operand 542 states and 989 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 03:37:15,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-31 03:37:15,163 INFO L93 Difference]: Finished difference Result 1064 states and 1943 transitions. [2021-08-31 03:37:15,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-31 03:37:15,164 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1064 states and 1943 transitions. [2021-08-31 03:37:15,170 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 510 [2021-08-31 03:37:15,176 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1064 states to 1064 states and 1943 transitions. [2021-08-31 03:37:15,176 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 552 [2021-08-31 03:37:15,177 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 552 [2021-08-31 03:37:15,177 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1064 states and 1943 transitions. [2021-08-31 03:37:15,179 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-31 03:37:15,179 INFO L681 BuchiCegarLoop]: Abstraction has 1064 states and 1943 transitions. [2021-08-31 03:37:15,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1064 states and 1943 transitions. [2021-08-31 03:37:15,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1064 to 541. [2021-08-31 03:37:15,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 541 states have (on average 1.820702402957486) internal successors, (985), 540 states have internal predecessors, (985), 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 03:37:15,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 985 transitions. [2021-08-31 03:37:15,192 INFO L704 BuchiCegarLoop]: Abstraction has 541 states and 985 transitions. [2021-08-31 03:37:15,192 INFO L587 BuchiCegarLoop]: Abstraction has 541 states and 985 transitions. [2021-08-31 03:37:15,192 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-31 03:37:15,192 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 541 states and 985 transitions. [2021-08-31 03:37:15,195 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 255 [2021-08-31 03:37:15,195 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 03:37:15,195 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 03:37:15,196 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-31 03:37:15,196 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-31 03:37:15,196 INFO L791 eck$LassoCheckResult]: Stem: 7309#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(28);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string7.base, #t~string7.offset, 1);call write~init~int(115, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(10, #t~string7.base, 2 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 3 + #t~string7.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(21);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(21);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(30);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(9);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(25);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(25);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(10);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(12);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(10);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(18);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(13);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(16);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(25);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(10);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(34);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(16);call #t~string82.base, #t~string82.offset := #Ultimate.allocOnStack(20);call #t~string85.base, #t~string85.offset := #Ultimate.allocOnStack(21);call #t~string93.base, #t~string93.offset := #Ultimate.allocOnStack(44);call #t~string98.base, #t~string98.offset := #Ultimate.allocOnStack(44);call #t~string100.base, #t~string100.offset := #Ultimate.allocOnStack(9);call #t~string102.base, #t~string102.offset := #Ultimate.allocOnStack(9);call #t~string104.base, #t~string104.offset := #Ultimate.allocOnStack(11);call #t~string108.base, #t~string108.offset := #Ultimate.allocOnStack(19);call #t~string111.base, #t~string111.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string111.base, #t~string111.offset, 1);call write~init~int(100, #t~string111.base, 1 + #t~string111.offset, 1);call write~init~int(10, #t~string111.base, 2 + #t~string111.offset, 1);call write~init~int(0, #t~string111.base, 3 + #t~string111.offset, 1);call #t~string114.base, #t~string114.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string114.base, #t~string114.offset, 1);call write~init~int(100, #t~string114.base, 1 + #t~string114.offset, 1);call write~init~int(10, #t~string114.base, 2 + #t~string114.offset, 1);call write~init~int(0, #t~string114.base, 3 + #t~string114.offset, 1);call #t~string121.base, #t~string121.offset := #Ultimate.allocOnStack(13);~head~0.base, ~head~0.offset := 0, 0;~__SELECTED_FEATURE_Base~0 := 0;~__SELECTED_FEATURE_Keys~0 := 0;~__SELECTED_FEATURE_Encrypt~0 := 0;~__SELECTED_FEATURE_AutoResponder~0 := 0;~__SELECTED_FEATURE_AddressBook~0 := 0;~__SELECTED_FEATURE_Sign~0 := 0;~__SELECTED_FEATURE_Forward~0 := 0;~__SELECTED_FEATURE_Verify~0 := 0;~__SELECTED_FEATURE_Decrypt~0 := 0;~__GUIDSL_ROOT_PRODUCTION~0 := 0;~__GUIDSL_NON_TERMINAL_main~0 := 0;~queue_empty~0 := 1;~queued_message~0 := 0;~queued_client~0 := 0;~__ste_Email_counter~0 := 0;~__ste_email_id0~0 := 0;~__ste_email_id1~0 := 0;~__ste_email_from0~0 := 0;~__ste_email_from1~0 := 0;~__ste_email_to0~0 := 0;~__ste_email_to1~0 := 0;~__ste_email_subject0~0.base, ~__ste_email_subject0~0.offset := 0, 0;~__ste_email_subject1~0.base, ~__ste_email_subject1~0.offset := 0, 0;~__ste_email_body0~0.base, ~__ste_email_body0~0.offset := 0, 0;~__ste_email_body1~0.base, ~__ste_email_body1~0.offset := 0, 0;~__ste_email_isEncrypted0~0 := 0;~__ste_email_isEncrypted1~0 := 0;~__ste_email_encryptionKey0~0 := 0;~__ste_email_encryptionKey1~0 := 0;~__ste_email_isSigned0~0 := 0;~__ste_email_isSigned1~0 := 0;~__ste_email_signKey0~0 := 0;~__ste_email_signKey1~0 := 0;~__ste_email_isSignatureVerified0~0 := 0;~__ste_email_isSignatureVerified1~0 := 0;~bob~0 := 0;~rjh~0 := 0;~chuck~0 := 0;~__ste_Client_counter~0 := 0;~__ste_client_name0~0.base, ~__ste_client_name0~0.offset := 0, 0;~__ste_client_name1~0.base, ~__ste_client_name1~0.offset := 0, 0;~__ste_client_name2~0.base, ~__ste_client_name2~0.offset := 0, 0;~__ste_client_outbuffer0~0 := 0;~__ste_client_outbuffer1~0 := 0;~__ste_client_outbuffer2~0 := 0;~__ste_client_outbuffer3~0 := 0;~__ste_ClientAddressBook_size0~0 := 0;~__ste_ClientAddressBook_size1~0 := 0;~__ste_ClientAddressBook_size2~0 := 0;~__ste_Client_AddressBook0_Alias0~0 := 0;~__ste_Client_AddressBook0_Alias1~0 := 0;~__ste_Client_AddressBook0_Alias2~0 := 0;~__ste_Client_AddressBook1_Alias0~0 := 0;~__ste_Client_AddressBook1_Alias1~0 := 0;~__ste_Client_AddressBook1_Alias2~0 := 0;~__ste_Client_AddressBook2_Alias0~0 := 0;~__ste_Client_AddressBook2_Alias1~0 := 0;~__ste_Client_AddressBook2_Alias2~0 := 0;~__ste_Client_AddressBook0_Address0~0 := 0;~__ste_Client_AddressBook0_Address1~0 := 0;~__ste_Client_AddressBook0_Address2~0 := 0;~__ste_Client_AddressBook1_Address0~0 := 0;~__ste_Client_AddressBook1_Address1~0 := 0;~__ste_Client_AddressBook1_Address2~0 := 0;~__ste_Client_AddressBook2_Address0~0 := 0;~__ste_Client_AddressBook2_Address1~0 := 0;~__ste_Client_AddressBook2_Address2~0 := 0;~__ste_client_autoResponse0~0 := 0;~__ste_client_autoResponse1~0 := 0;~__ste_client_autoResponse2~0 := 0;~__ste_client_privateKey0~0 := 0;~__ste_client_privateKey1~0 := 0;~__ste_client_privateKey2~0 := 0;~__ste_ClientKeyring_size0~0 := 0;~__ste_ClientKeyring_size1~0 := 0;~__ste_ClientKeyring_size2~0 := 0;~__ste_Client_Keyring0_User0~0 := 0;~__ste_Client_Keyring0_User1~0 := 0;~__ste_Client_Keyring0_User2~0 := 0;~__ste_Client_Keyring1_User0~0 := 0;~__ste_Client_Keyring1_User1~0 := 0;~__ste_Client_Keyring1_User2~0 := 0;~__ste_Client_Keyring2_User0~0 := 0;~__ste_Client_Keyring2_User1~0 := 0;~__ste_Client_Keyring2_User2~0 := 0;~__ste_Client_Keyring0_PublicKey0~0 := 0;~__ste_Client_Keyring0_PublicKey1~0 := 0;~__ste_Client_Keyring0_PublicKey2~0 := 0;~__ste_Client_Keyring1_PublicKey0~0 := 0;~__ste_Client_Keyring1_PublicKey1~0 := 0;~__ste_Client_Keyring1_PublicKey2~0 := 0;~__ste_Client_Keyring2_PublicKey0~0 := 0;~__ste_Client_Keyring2_PublicKey1~0 := 0;~__ste_Client_Keyring2_PublicKey2~0 := 0;~__ste_client_forwardReceiver0~0 := 0;~__ste_client_forwardReceiver1~0 := 0;~__ste_client_forwardReceiver2~0 := 0;~__ste_client_forwardReceiver3~0 := 0;~__ste_client_idCounter0~0 := 0;~__ste_client_idCounter1~0 := 0;~__ste_client_idCounter2~0 := 0; 7248#L-1 havoc main_#res;havoc main_#t~ret106, main_~retValue_acc~23, main_~tmp~15;havoc main_~retValue_acc~23;havoc main_~tmp~15; 7115#L1875 havoc valid_product_#res;havoc valid_product_~retValue_acc~25;havoc valid_product_~retValue_acc~25;valid_product_~retValue_acc~25 := 1;valid_product_#res := valid_product_~retValue_acc~25; 6905#L1883 main_#t~ret106 := valid_product_#res;main_~tmp~15 := main_#t~ret106;havoc main_#t~ret106; 6841#L1459 assume 0 != main_~tmp~15;havoc setup_#t~nondet101, setup_#t~nondet103, setup_#t~nondet105, setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset, setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset, setup_~__cil_tmp3~3.base, setup_~__cil_tmp3~3.offset;havoc setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset;havoc setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset;havoc setup_~__cil_tmp3~3.base, setup_~__cil_tmp3~3.offset;~bob~0 := 1;setup_bob_#in~bob___0 := ~bob~0;havoc setup_bob_~bob___0;setup_bob_~bob___0 := setup_bob_#in~bob___0;setup_bob__wrappee__Base_#in~bob___0 := setup_bob_~bob___0;havoc setup_bob__wrappee__Base_~bob___0;setup_bob__wrappee__Base_~bob___0 := setup_bob__wrappee__Base_#in~bob___0;setClientId_#in~handle, setClientId_#in~value := setup_bob__wrappee__Base_~bob___0, setup_bob__wrappee__Base_~bob___0;havoc setClientId_~handle, setClientId_~value;setClientId_~handle := setClientId_#in~handle;setClientId_~value := setClientId_#in~value; 6842#L2933 assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 7113#L2939-2 setClientPrivateKey_#in~handle, setClientPrivateKey_#in~value := setup_bob_~bob___0, 123;havoc setClientPrivateKey_~handle, setClientPrivateKey_~value;setClientPrivateKey_~handle := setClientPrivateKey_#in~handle;setClientPrivateKey_~value := setClientPrivateKey_#in~value; 7114#L2498 assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 7109#L2504-2 setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset := #t~string100.base, #t~string100.offset;havoc setup_#t~nondet101;~rjh~0 := 2;setup_rjh_#in~rjh___0 := ~rjh~0;havoc setup_rjh_~rjh___0;setup_rjh_~rjh___0 := setup_rjh_#in~rjh___0;setup_rjh__wrappee__Base_#in~rjh___0 := setup_rjh_~rjh___0;havoc setup_rjh__wrappee__Base_~rjh___0;setup_rjh__wrappee__Base_~rjh___0 := setup_rjh__wrappee__Base_#in~rjh___0;setClientId_#in~handle, setClientId_#in~value := setup_rjh__wrappee__Base_~rjh___0, setup_rjh__wrappee__Base_~rjh___0;havoc setClientId_~handle, setClientId_~value;setClientId_~handle := setClientId_#in~handle;setClientId_~value := setClientId_#in~value; 7135#L2933-2 assume !(1 == setClientId_~handle); 7259#L2936-2 assume 2 == setClientId_~handle;~__ste_client_idCounter1~0 := setClientId_~value; 7232#L2939-5 setClientPrivateKey_#in~handle, setClientPrivateKey_#in~value := setup_rjh_~rjh___0, 456;havoc setClientPrivateKey_~handle, setClientPrivateKey_~value;setClientPrivateKey_~handle := setClientPrivateKey_#in~handle;setClientPrivateKey_~value := setClientPrivateKey_#in~value; 7233#L2498-2 assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 7088#L2504-5 setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset := #t~string102.base, #t~string102.offset;havoc setup_#t~nondet103;~chuck~0 := 3;setup_chuck_#in~chuck___0 := ~chuck~0;havoc setup_chuck_~chuck___0;setup_chuck_~chuck___0 := setup_chuck_#in~chuck___0;setup_chuck__wrappee__Base_#in~chuck___0 := setup_chuck_~chuck___0;havoc setup_chuck__wrappee__Base_~chuck___0;setup_chuck__wrappee__Base_~chuck___0 := setup_chuck__wrappee__Base_#in~chuck___0;setClientId_#in~handle, setClientId_#in~value := setup_chuck__wrappee__Base_~chuck___0, setup_chuck__wrappee__Base_~chuck___0;havoc setClientId_~handle, setClientId_~value;setClientId_~handle := setClientId_#in~handle;setClientId_~value := setClientId_#in~value; 7231#L2933-4 assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 6910#L2939-8 setClientPrivateKey_#in~handle, setClientPrivateKey_#in~value := setup_chuck_~chuck___0, 789;havoc setClientPrivateKey_~handle, setClientPrivateKey_~value;setClientPrivateKey_~handle := setClientPrivateKey_#in~handle;setClientPrivateKey_~value := setClientPrivateKey_#in~value; 7243#L2498-4 assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 7045#L2504-8 setup_~__cil_tmp3~3.base, setup_~__cil_tmp3~3.offset := #t~string104.base, #t~string104.offset;havoc setup_#t~nondet105; 7046#L1446 havoc test_#t~nondet125, test_#t~nondet126, test_#t~nondet127, test_#t~nondet128, test_#t~nondet129, test_#t~nondet130, test_#t~nondet131, test_#t~nondet132, test_#t~nondet133, test_#t~nondet134, test_#t~nondet135, test_~op1~0, test_~op2~0, test_~op3~0, test_~op4~0, test_~op5~0, test_~op6~0, test_~op7~0, test_~op8~0, test_~op9~0, test_~op10~0, test_~op11~0, test_~splverifierCounter~0, test_~tmp~18, test_~tmp___0~7, test_~tmp___1~4, test_~tmp___2~3, test_~tmp___3~1, test_~tmp___4~1, test_~tmp___5~0, test_~tmp___6~0, test_~tmp___7~0, test_~tmp___8~0, test_~tmp___9~0;havoc test_~op1~0;havoc test_~op2~0;havoc test_~op3~0;havoc test_~op4~0;havoc test_~op5~0;havoc test_~op6~0;havoc test_~op7~0;havoc test_~op8~0;havoc test_~op9~0;havoc test_~op10~0;havoc test_~op11~0;havoc test_~splverifierCounter~0;havoc test_~tmp~18;havoc test_~tmp___0~7;havoc test_~tmp___1~4;havoc test_~tmp___2~3;havoc test_~tmp___3~1;havoc test_~tmp___4~1;havoc test_~tmp___5~0;havoc test_~tmp___6~0;havoc test_~tmp___7~0;havoc test_~tmp___8~0;havoc test_~tmp___9~0;test_~op1~0 := 0;test_~op2~0 := 0;test_~op3~0 := 0;test_~op4~0 := 0;test_~op5~0 := 0;test_~op6~0 := 0;test_~op7~0 := 0;test_~op8~0 := 0;test_~op9~0 := 0;test_~op10~0 := 0;test_~op11~0 := 0;test_~splverifierCounter~0 := 0; 7110#L1822-1 assume !false; 7033#L1674 [2021-08-31 03:37:15,196 INFO L793 eck$LassoCheckResult]: Loop: 7033#L1674 assume test_~splverifierCounter~0 < 4; 7053#L1675 test_~splverifierCounter~0 := 1 + test_~splverifierCounter~0; 7054#L1681 assume !(0 == test_~op1~0); 7023#L1694 assume !(0 == test_~op2~0); 6989#L1705 assume 0 == test_~op3~0;test_~tmp___7~0 := test_#t~nondet127;havoc test_#t~nondet127; 6991#L1710 assume 0 != test_~tmp___7~0;setClientPrivateKey_#in~handle, setClientPrivateKey_#in~value := ~rjh~0, 0;havoc setClientPrivateKey_~handle, setClientPrivateKey_~value;setClientPrivateKey_~handle := setClientPrivateKey_#in~handle;setClientPrivateKey_~value := setClientPrivateKey_#in~value; 7111#L2498-6 assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 7095#L2504-11 test_~op3~0 := 1; 6818#L1822-1 assume !false; 7033#L1674 [2021-08-31 03:37:15,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 03:37:15,197 INFO L82 PathProgramCache]: Analyzing trace with hash -953559564, now seen corresponding path program 1 times [2021-08-31 03:37:15,197 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 03:37:15,198 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179680676] [2021-08-31 03:37:15,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 03:37:15,198 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 03:37:15,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 03:37:15,266 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 03:37:15,266 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-31 03:37:15,266 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179680676] [2021-08-31 03:37:15,267 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179680676] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-31 03:37:15,267 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-31 03:37:15,267 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-31 03:37:15,267 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934844777] [2021-08-31 03:37:15,267 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-08-31 03:37:15,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 03:37:15,268 INFO L82 PathProgramCache]: Analyzing trace with hash -1296812605, now seen corresponding path program 1 times [2021-08-31 03:37:15,268 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 03:37:15,268 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467870107] [2021-08-31 03:37:15,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 03:37:15,268 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 03:37:15,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 03:37:15,273 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 03:37:15,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 03:37:15,280 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 03:37:15,357 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 03:37:15,357 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 03:37:15,357 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 03:37:15,357 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 03:37:15,357 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-31 03:37:15,357 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 03:37:15,358 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 03:37:15,358 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 03:37:15,358 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec4_product25.cil.c_Iteration2_Loop [2021-08-31 03:37:15,358 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 03:37:15,358 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 03:37:15,359 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 03:37:15,364 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 03:37:15,370 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 03:37:15,373 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 03:37:15,375 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 03:37:15,380 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 03:37:15,382 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 03:37:15,467 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 03:37:15,468 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-31 03:37:15,468 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 03:37:15,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 03:37:15,469 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 03:37:15,485 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 03:37:15,485 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 03:37:15,486 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 03:37:15,513 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-31 03:37:15,514 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_setClientPrivateKey_#in~value=0, ULTIMATE.start_setClientPrivateKey_~value=0, ~__ste_client_privateKey0~0=0} Honda state: {ULTIMATE.start_setClientPrivateKey_#in~value=0, ULTIMATE.start_setClientPrivateKey_~value=0, ~__ste_client_privateKey0~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-31 03:37:15,530 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 03:37:15,530 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 03:37:15,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 03:37:15,531 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 03:37:15,531 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 03:37:15,533 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 03:37:15,533 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 03:37:15,549 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-31 03:37:15,549 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_test_~tmp___7~0=-8, ULTIMATE.start_test_#t~nondet127=-8} Honda state: {ULTIMATE.start_test_~tmp___7~0=-8, ULTIMATE.start_test_#t~nondet127=-8} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-31 03:37:15,566 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 03:37:15,566 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 03:37:15,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 03:37:15,568 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 03:37:15,568 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 03:37:15,569 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 03:37:15,569 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 03:37:15,607 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 03:37:15,607 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 03:37:15,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 03:37:15,609 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 03:37:15,620 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-31 03:37:15,620 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 03:37:15,642 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 03:37:15,665 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-31 03:37:15,670 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 03:37:15,671 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 03:37:15,671 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 03:37:15,671 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 03:37:15,671 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 03:37:15,671 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-31 03:37:15,671 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 03:37:15,671 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 03:37:15,671 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 03:37:15,671 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec4_product25.cil.c_Iteration2_Loop [2021-08-31 03:37:15,671 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 03:37:15,671 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 03:37:15,672 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 03:37:15,683 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 03:37:15,688 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 03:37:15,690 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 03:37:15,693 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 03:37:15,697 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 03:37:15,702 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 03:37:15,791 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 03:37:15,791 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-31 03:37:15,791 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 03:37:15,791 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 03:37:15,794 INFO L229 MonitoredProcess]: Starting monitored process 10 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 03:37:15,796 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-08-31 03:37:15,797 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 03:37:15,803 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 03:37:15,804 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 03:37:15,804 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 03:37:15,804 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 03:37:15,804 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 03:37:15,805 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 03:37:15,805 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 03:37:15,820 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-31 03:37:15,829 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-08-31 03:37:15,829 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-08-31 03:37:15,829 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 03:37:15,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 03:37:15,831 INFO L229 MonitoredProcess]: Starting monitored process 11 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 03:37:15,833 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-08-31 03:37:15,834 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-31 03:37:15,834 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-08-31 03:37:15,834 INFO L513 LassoAnalysis]: Proved termination. [2021-08-31 03:37:15,834 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_test_~splverifierCounter~0) = -2*ULTIMATE.start_test_~splverifierCounter~0 + 7 Supporting invariants [] [2021-08-31 03:37:15,855 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-08-31 03:37:15,855 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-08-31 03:37:15,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 03:37:15,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 03:37:15,965 INFO L263 TraceCheckSpWp]: Trace formula consists of 633 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-31 03:37:15,966 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 03:37:16,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 03:37:16,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-31 03:37:16,040 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 03:37:16,114 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 03:37:16,115 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-08-31 03:37:16,116 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 541 states and 985 transitions. cyclomatic complexity: 446 Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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 03:37:16,635 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-08-31 03:37:16,901 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 541 states and 985 transitions. cyclomatic complexity: 446. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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 1055 states and 1929 transitions. Complement of second has 6 states. [2021-08-31 03:37:16,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-08-31 03:37:16,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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 03:37:16,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 515 transitions. [2021-08-31 03:37:16,902 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 515 transitions. Stem has 20 letters. Loop has 9 letters. [2021-08-31 03:37:16,902 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 03:37:16,903 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 515 transitions. Stem has 29 letters. Loop has 9 letters. [2021-08-31 03:37:16,903 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 03:37:16,903 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 515 transitions. Stem has 20 letters. Loop has 18 letters. [2021-08-31 03:37:16,903 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 03:37:16,903 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1055 states and 1929 transitions. [2021-08-31 03:37:16,908 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-31 03:37:16,908 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1055 states to 0 states and 0 transitions. [2021-08-31 03:37:16,908 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-08-31 03:37:16,908 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-08-31 03:37:16,908 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-08-31 03:37:16,908 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-31 03:37:16,908 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-31 03:37:16,908 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-31 03:37:16,908 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-31 03:37:16,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-31 03:37:16,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-31 03:37:16,909 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 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 03:37:16,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-31 03:37:16,909 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2021-08-31 03:37:16,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-31 03:37:16,909 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2021-08-31 03:37:16,910 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-31 03:37:16,910 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2021-08-31 03:37:16,910 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-08-31 03:37:16,910 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-08-31 03:37:16,910 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-08-31 03:37:16,910 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-31 03:37:16,910 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-31 03:37:16,910 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-31 03:37:16,910 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-31 03:37:16,910 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-08-31 03:37:16,910 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-08-31 03:37:16,910 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-31 03:37:16,910 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-08-31 03:37:16,912 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 03:37:16,914 INFO L158 Benchmark]: Toolchain (without parser) took 10399.83ms. Allocated memory was 56.6MB in the beginning and 213.9MB in the end (delta: 157.3MB). Free memory was 33.2MB in the beginning and 125.0MB in the end (delta: -91.8MB). Peak memory consumption was 65.5MB. Max. memory is 16.1GB. [2021-08-31 03:37:16,915 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 56.6MB. Free memory was 39.2MB in the beginning and 39.2MB in the end (delta: 50.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-31 03:37:16,915 INFO L158 Benchmark]: CACSL2BoogieTranslator took 487.92ms. Allocated memory was 56.6MB in the beginning and 73.4MB in the end (delta: 16.8MB). Free memory was 33.0MB in the beginning and 31.7MB in the end (delta: 1.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-08-31 03:37:16,915 INFO L158 Benchmark]: Boogie Procedure Inliner took 97.17ms. Allocated memory is still 73.4MB. Free memory was 31.7MB in the beginning and 40.6MB in the end (delta: -8.9MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. [2021-08-31 03:37:16,916 INFO L158 Benchmark]: Boogie Preprocessor took 136.01ms. Allocated memory is still 73.4MB. Free memory was 40.6MB in the beginning and 43.7MB in the end (delta: -3.1MB). Peak memory consumption was 22.5MB. Max. memory is 16.1GB. [2021-08-31 03:37:16,916 INFO L158 Benchmark]: RCFGBuilder took 839.75ms. Allocated memory was 73.4MB in the beginning and 109.1MB in the end (delta: 35.7MB). Free memory was 43.7MB in the beginning and 58.7MB in the end (delta: -15.0MB). Peak memory consumption was 39.2MB. Max. memory is 16.1GB. [2021-08-31 03:37:16,917 INFO L158 Benchmark]: BuchiAutomizer took 8833.70ms. Allocated memory was 109.1MB in the beginning and 213.9MB in the end (delta: 104.9MB). Free memory was 58.7MB in the beginning and 125.0MB in the end (delta: -66.3MB). Peak memory consumption was 39.2MB. Max. memory is 16.1GB. [2021-08-31 03:37:16,918 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 56.6MB. Free memory was 39.2MB in the beginning and 39.2MB in the end (delta: 50.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 487.92ms. Allocated memory was 56.6MB in the beginning and 73.4MB in the end (delta: 16.8MB). Free memory was 33.0MB in the beginning and 31.7MB in the end (delta: 1.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 97.17ms. Allocated memory is still 73.4MB. Free memory was 31.7MB in the beginning and 40.6MB in the end (delta: -8.9MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 136.01ms. Allocated memory is still 73.4MB. Free memory was 40.6MB in the beginning and 43.7MB in the end (delta: -3.1MB). Peak memory consumption was 22.5MB. Max. memory is 16.1GB. * RCFGBuilder took 839.75ms. Allocated memory was 73.4MB in the beginning and 109.1MB in the end (delta: 35.7MB). Free memory was 43.7MB in the beginning and 58.7MB in the end (delta: -15.0MB). Peak memory consumption was 39.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 8833.70ms. Allocated memory was 109.1MB in the beginning and 213.9MB in the end (delta: 104.9MB). Free memory was 58.7MB in the beginning and 125.0MB in the end (delta: -66.3MB). Peak memory consumption was 39.2MB. 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 4 terminating modules (2 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * op2 + 1 and consists of 5 locations. One deterministic module has affine ranking function 7 + -2 * splverifierCounter and consists of 4 locations. 2 modules have a trivial ranking function, the largest among these consists of 5 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 03:37:16,947 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...