./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/email_spec27_product13.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_spec27_product13.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 851e36226cdf3cb8be7fe7d1d790d283648c6798 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 03:35:19,168 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-31 03:35:19,172 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-31 03:35:19,213 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-31 03:35:19,213 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-31 03:35:19,216 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-31 03:35:19,218 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-31 03:35:19,223 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-31 03:35:19,225 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-31 03:35:19,230 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-31 03:35:19,231 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-31 03:35:19,235 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-31 03:35:19,235 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-31 03:35:19,238 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-31 03:35:19,239 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-31 03:35:19,243 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-31 03:35:19,245 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-31 03:35:19,245 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-31 03:35:19,248 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-31 03:35:19,255 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-31 03:35:19,256 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-31 03:35:19,261 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-31 03:35:19,263 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-31 03:35:19,265 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-31 03:35:19,271 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-31 03:35:19,271 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-31 03:35:19,271 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-31 03:35:19,273 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-31 03:35:19,274 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-31 03:35:19,274 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-31 03:35:19,275 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-31 03:35:19,275 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-31 03:35:19,277 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-31 03:35:19,277 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-31 03:35:19,279 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-31 03:35:19,279 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-31 03:35:19,280 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-31 03:35:19,280 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-31 03:35:19,280 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-31 03:35:19,282 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-31 03:35:19,282 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-31 03:35:19,286 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-08-31 03:35:19,325 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-31 03:35:19,325 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-31 03:35:19,326 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-31 03:35:19,326 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-31 03:35:19,328 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-31 03:35:19,329 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-31 03:35:19,329 INFO L138 SettingsManager]: * Use SBE=true [2021-08-31 03:35:19,329 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-31 03:35:19,329 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-31 03:35:19,329 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-31 03:35:19,330 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-31 03:35:19,330 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-31 03:35:19,341 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-31 03:35:19,341 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-31 03:35:19,341 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-31 03:35:19,342 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-31 03:35:19,342 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-31 03:35:19,342 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-31 03:35:19,342 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-31 03:35:19,342 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-31 03:35:19,342 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-31 03:35:19,343 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-31 03:35:19,343 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-31 03:35:19,343 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-31 03:35:19,343 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-31 03:35:19,343 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-31 03:35:19,343 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-31 03:35:19,344 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-31 03:35:19,344 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-31 03:35:19,344 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-31 03:35:19,344 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-31 03:35:19,345 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-31 03:35:19,346 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-31 03:35:19,346 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 851e36226cdf3cb8be7fe7d1d790d283648c6798 [2021-08-31 03:35:19,638 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-31 03:35:19,664 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-31 03:35:19,666 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-31 03:35:19,667 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-31 03:35:19,668 INFO L275 PluginConnector]: CDTParser initialized [2021-08-31 03:35:19,669 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec27_product13.cil.c [2021-08-31 03:35:19,725 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34056a420/9aee5036164344a6a370076ee3585240/FLAGc93433e07 [2021-08-31 03:35:20,297 INFO L306 CDTParser]: Found 1 translation units. [2021-08-31 03:35:20,298 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec27_product13.cil.c [2021-08-31 03:35:20,316 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34056a420/9aee5036164344a6a370076ee3585240/FLAGc93433e07 [2021-08-31 03:35:20,599 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34056a420/9aee5036164344a6a370076ee3585240 [2021-08-31 03:35:20,601 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-31 03:35:20,604 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-31 03:35:20,606 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-31 03:35:20,607 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-31 03:35:20,610 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-31 03:35:20,610 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 03:35:20" (1/1) ... [2021-08-31 03:35:20,611 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cc79c40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:35:20, skipping insertion in model container [2021-08-31 03:35:20,611 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 03:35:20" (1/1) ... [2021-08-31 03:35:20,617 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-31 03:35:20,674 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-31 03:35:21,124 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_spec27_product13.cil.c[61363,61376] [2021-08-31 03:35:21,125 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-31 03:35:21,135 INFO L203 MainTranslator]: Completed pre-run [2021-08-31 03:35:21,261 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_spec27_product13.cil.c[61363,61376] [2021-08-31 03:35:21,267 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-31 03:35:21,303 INFO L208 MainTranslator]: Completed translation [2021-08-31 03:35:21,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:35:21 WrapperNode [2021-08-31 03:35:21,304 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-31 03:35:21,305 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-31 03:35:21,305 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-31 03:35:21,305 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-31 03:35:21,311 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:35:21" (1/1) ... [2021-08-31 03:35:21,334 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:35:21" (1/1) ... [2021-08-31 03:35:21,412 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-31 03:35:21,413 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-31 03:35:21,413 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-31 03:35:21,413 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-31 03:35:21,420 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:35:21" (1/1) ... [2021-08-31 03:35:21,421 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:35:21" (1/1) ... [2021-08-31 03:35:21,427 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:35:21" (1/1) ... [2021-08-31 03:35:21,431 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:35:21" (1/1) ... [2021-08-31 03:35:21,464 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:35:21" (1/1) ... [2021-08-31 03:35:21,481 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:35:21" (1/1) ... [2021-08-31 03:35:21,486 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:35:21" (1/1) ... [2021-08-31 03:35:21,495 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-31 03:35:21,496 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-31 03:35:21,496 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-31 03:35:21,496 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-31 03:35:21,497 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:35:21" (1/1) ... [2021-08-31 03:35:21,502 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 03:35:21,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 03:35:21,534 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 03:35:21,558 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 03:35:21,565 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-08-31 03:35:21,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-31 03:35:21,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-31 03:35:21,565 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-31 03:35:21,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-31 03:35:22,417 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-31 03:35:22,418 INFO L299 CfgBuilder]: Removed 239 assume(true) statements. [2021-08-31 03:35:22,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 03:35:22 BoogieIcfgContainer [2021-08-31 03:35:22,421 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-31 03:35:22,423 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-31 03:35:22,423 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-31 03:35:22,426 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-31 03:35:22,427 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 03:35:22,427 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 31.08 03:35:20" (1/3) ... [2021-08-31 03:35:22,428 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5887d29b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.08 03:35:22, skipping insertion in model container [2021-08-31 03:35:22,428 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 03:35:22,428 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:35:21" (2/3) ... [2021-08-31 03:35:22,433 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5887d29b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.08 03:35:22, skipping insertion in model container [2021-08-31 03:35:22,433 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 03:35:22,433 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 03:35:22" (3/3) ... [2021-08-31 03:35:22,434 INFO L389 chiAutomizerObserver]: Analyzing ICFG email_spec27_product13.cil.c [2021-08-31 03:35:22,482 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-31 03:35:22,482 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-31 03:35:22,482 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-31 03:35:22,483 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-31 03:35:22,483 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-31 03:35:22,484 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-31 03:35:22,484 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-31 03:35:22,484 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-31 03:35:22,516 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 399 states, 398 states have (on average 1.771356783919598) internal successors, (705), 398 states have internal predecessors, (705), 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 03:35:22,555 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 208 [2021-08-31 03:35:22,555 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 03:35:22,555 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 03:35:22,562 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 03:35:22,562 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2021-08-31 03:35:22,563 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-31 03:35:22,564 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 399 states, 398 states have (on average 1.771356783919598) internal successors, (705), 398 states have internal predecessors, (705), 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 03:35:22,580 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 208 [2021-08-31 03:35:22,584 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 03:35:22,585 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 03:35:22,586 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 03:35:22,589 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2021-08-31 03:35:22,601 INFO L791 eck$LassoCheckResult]: Stem: 394#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(29);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~string46.base, #t~string46.offset := #Ultimate.allocOnStack(10);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(12);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(10);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(18);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(13);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(16);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(10);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(16);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(20);call #t~string85.base, #t~string85.offset := #Ultimate.allocOnStack(44);call #t~string90.base, #t~string90.offset := #Ultimate.allocOnStack(44);call #t~string92.base, #t~string92.offset := #Ultimate.allocOnStack(9);call #t~string94.base, #t~string94.offset := #Ultimate.allocOnStack(9);call #t~string96.base, #t~string96.offset := #Ultimate.allocOnStack(11);call #t~string101.base, #t~string101.offset := #Ultimate.allocOnStack(19);call #t~string104.base, #t~string104.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string104.base, #t~string104.offset, 1);call write~init~int(100, #t~string104.base, 1 + #t~string104.offset, 1);call write~init~int(10, #t~string104.base, 2 + #t~string104.offset, 1);call write~init~int(0, #t~string104.base, 3 + #t~string104.offset, 1);call #t~string107.base, #t~string107.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string107.base, #t~string107.offset, 1);call write~init~int(100, #t~string107.base, 1 + #t~string107.offset, 1);call write~init~int(10, #t~string107.base, 2 + #t~string107.offset, 1);call write~init~int(0, #t~string107.base, 3 + #t~string107.offset, 1);call #t~string114.base, #t~string114.offset := #Ultimate.allocOnStack(16);~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_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;~bob~0 := 0;~rjh~0 := 0;~chuck~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; 331#L-1true havoc main_#res;havoc main_#t~nondet98, main_#t~ret99, main_~retValue_acc~31, main_~tmp~15;main_~retValue_acc~31 := main_#t~nondet98;havoc main_#t~nondet98;havoc main_~tmp~15; 3#L461true havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 10#L469true main_#t~ret99 := valid_product_#res;main_~tmp~15 := main_#t~ret99;havoc main_#t~ret99; 145#L2073true assume 0 != main_~tmp~15;havoc setup_#t~nondet93, setup_#t~nondet95, setup_#t~nondet97, setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset, setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset, setup_~__cil_tmp3~2.base, setup_~__cil_tmp3~2.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_tmp3~2.base, setup_~__cil_tmp3~2.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; 162#L1906true assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 250#L1912-2true 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; 349#L1471true assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 374#L1477-2true setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset := #t~string92.base, #t~string92.offset;havoc setup_#t~nondet93;~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; 339#L1906-2true assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 120#L1912-5true 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; 168#L1471-2true assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 172#L1477-5true setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset := #t~string94.base, #t~string94.offset;havoc setup_#t~nondet95;~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; 53#L1906-4true assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 139#L1912-8true 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; 390#L1471-4true assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 362#L1477-8true setup_~__cil_tmp3~2.base, setup_~__cil_tmp3~2.offset := #t~string96.base, #t~string96.offset;havoc setup_#t~nondet97; 214#L2060true havoc test_#t~nondet119, test_#t~nondet120, test_#t~nondet121, test_#t~nondet122, test_#t~nondet123, test_#t~nondet124, test_#t~nondet125, test_#t~nondet126, test_#t~nondet127, test_#t~nondet128, test_#t~nondet129, 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___0~6, test_~tmp___1~4, test_~tmp___2~2, 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___0~6;havoc test_~tmp___1~4;havoc test_~tmp___2~2;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; 345#L2812-1true [2021-08-31 03:35:22,606 INFO L793 eck$LassoCheckResult]: Loop: 345#L2812-1true assume !false; 23#L2670true assume test_~splverifierCounter~0 < 4; 121#L2671true test_~splverifierCounter~0 := 1 + test_~splverifierCounter~0; 16#L2677true assume !(0 == test_~op1~0); 129#L2690true assume 0 == test_~op2~0;test_~tmp___8~0 := test_#t~nondet120;havoc test_#t~nondet120; 15#L2695true assume 0 != test_~tmp___8~0;test_~op2~0 := 1; 345#L2812-1true [2021-08-31 03:35:22,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 03:35:22,611 INFO L82 PathProgramCache]: Analyzing trace with hash 1291925977, now seen corresponding path program 1 times [2021-08-31 03:35:22,618 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 03:35:22,619 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469550958] [2021-08-31 03:35:22,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 03:35:22,620 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 03:35:22,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 03:35:22,947 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 03:35:22,948 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-31 03:35:22,948 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469550958] [2021-08-31 03:35:22,949 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469550958] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-31 03:35:22,949 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-31 03:35:22,949 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-31 03:35:22,950 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550102671] [2021-08-31 03:35:22,954 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-08-31 03:35:22,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 03:35:22,955 INFO L82 PathProgramCache]: Analyzing trace with hash 590492675, now seen corresponding path program 1 times [2021-08-31 03:35:22,955 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 03:35:22,955 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646069387] [2021-08-31 03:35:22,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 03:35:22,956 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 03:35:22,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 03:35:22,965 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 03:35:22,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 03:35:23,006 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 03:35:23,081 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 03:35:23,082 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 03:35:23,082 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 03:35:23,082 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 03:35:23,083 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-31 03:35:23,083 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 03:35:23,083 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 03:35:23,083 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 03:35:23,083 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec27_product13.cil.c_Iteration1_Loop [2021-08-31 03:35:23,083 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 03:35:23,084 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 03:35:23,099 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 03:35:23,107 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 03:35:23,112 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 03:35:23,115 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 03:35:23,201 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 03:35:23,201 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-31 03:35:23,204 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 03:35:23,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 03:35:23,209 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 03:35:23,218 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 03:35:23,218 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 03:35:23,228 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 03:35:23,246 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2021-08-31 03:35:23,246 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 03:35:23,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 03:35:23,248 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 03:35:23,251 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 03:35:23,252 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-31 03:35:23,252 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 03:35:23,265 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-31 03:35:23,288 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 03:35:23,288 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 03:35:23,288 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 03:35:23,288 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 03:35:23,288 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 03:35:23,289 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-31 03:35:23,289 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 03:35:23,289 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 03:35:23,289 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 03:35:23,289 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec27_product13.cil.c_Iteration1_Loop [2021-08-31 03:35:23,289 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 03:35:23,289 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 03:35:23,290 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 03:35:23,299 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 03:35:23,306 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 03:35:23,314 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 03:35:23,382 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 03:35:23,387 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-31 03:35:23,391 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 03:35:23,391 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 03:35:23,393 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 03:35:23,402 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 03:35:23,416 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 03:35:23,416 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 03:35:23,417 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 03:35:23,417 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 03:35:23,417 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 03:35:23,420 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 03:35:23,420 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 03:35:23,423 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 03:35:23,433 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-31 03:35:23,438 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-08-31 03:35:23,439 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-08-31 03:35:23,440 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 03:35:23,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 03:35:23,442 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 03:35:23,443 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 03:35:23,445 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-31 03:35:23,445 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-08-31 03:35:23,445 INFO L513 LassoAnalysis]: Proved termination. [2021-08-31 03:35:23,446 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 03:35:23,469 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 03:35:23,471 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-08-31 03:35:23,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 03:35:23,610 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 03:35:23,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 03:35:23,668 INFO L263 TraceCheckSpWp]: Trace formula consists of 614 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-31 03:35:23,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 03:35:23,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 03:35:23,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-31 03:35:23,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 03:35:23,825 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 03:35:23,859 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 03:35:23,861 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 399 states, 398 states have (on average 1.771356783919598) internal successors, (705), 398 states have internal predecessors, (705), 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 03:35:26,485 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 399 states, 398 states have (on average 1.771356783919598) internal successors, (705), 398 states have internal predecessors, (705), 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 1672 states and 2944 transitions. Complement of second has 7 states. [2021-08-31 03:35:26,486 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 03:35:26,490 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 03:35:26,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1636 transitions. [2021-08-31 03:35:26,494 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 1636 transitions. Stem has 18 letters. Loop has 6 letters. [2021-08-31 03:35:26,495 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 03:35:26,495 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 1636 transitions. Stem has 24 letters. Loop has 6 letters. [2021-08-31 03:35:26,495 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 03:35:26,495 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 1636 transitions. Stem has 18 letters. Loop has 12 letters. [2021-08-31 03:35:26,495 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 03:35:26,496 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1672 states and 2944 transitions. [2021-08-31 03:35:26,516 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 415 [2021-08-31 03:35:26,531 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1672 states to 863 states and 1568 transitions. [2021-08-31 03:35:26,532 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 446 [2021-08-31 03:35:26,534 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 447 [2021-08-31 03:35:26,535 INFO L73 IsDeterministic]: Start isDeterministic. Operand 863 states and 1568 transitions. [2021-08-31 03:35:26,535 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-31 03:35:26,535 INFO L681 BuchiCegarLoop]: Abstraction has 863 states and 1568 transitions. [2021-08-31 03:35:26,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 863 states and 1568 transitions. [2021-08-31 03:35:26,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 863 to 448. [2021-08-31 03:35:26,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 448 states, 448 states have (on average 1.8102678571428572) internal successors, (811), 447 states have internal predecessors, (811), 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 03:35:26,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 811 transitions. [2021-08-31 03:35:26,599 INFO L704 BuchiCegarLoop]: Abstraction has 448 states and 811 transitions. [2021-08-31 03:35:26,599 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-31 03:35:26,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-31 03:35:26,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-31 03:35:26,603 INFO L87 Difference]: Start difference. First operand 448 states and 811 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 03:35:27,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-31 03:35:27,653 INFO L93 Difference]: Finished difference Result 876 states and 1587 transitions. [2021-08-31 03:35:27,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-31 03:35:27,654 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 876 states and 1587 transitions. [2021-08-31 03:35:27,659 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 416 [2021-08-31 03:35:27,664 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 876 states to 876 states and 1587 transitions. [2021-08-31 03:35:27,664 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 458 [2021-08-31 03:35:27,665 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 458 [2021-08-31 03:35:27,665 INFO L73 IsDeterministic]: Start isDeterministic. Operand 876 states and 1587 transitions. [2021-08-31 03:35:27,665 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-31 03:35:27,666 INFO L681 BuchiCegarLoop]: Abstraction has 876 states and 1587 transitions. [2021-08-31 03:35:27,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 876 states and 1587 transitions. [2021-08-31 03:35:27,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 876 to 447. [2021-08-31 03:35:27,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 447 states have (on average 1.8053691275167785) internal successors, (807), 446 states have internal predecessors, (807), 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 03:35:27,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 807 transitions. [2021-08-31 03:35:27,676 INFO L704 BuchiCegarLoop]: Abstraction has 447 states and 807 transitions. [2021-08-31 03:35:27,676 INFO L587 BuchiCegarLoop]: Abstraction has 447 states and 807 transitions. [2021-08-31 03:35:27,676 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-31 03:35:27,676 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 447 states and 807 transitions. [2021-08-31 03:35:27,678 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 208 [2021-08-31 03:35:27,679 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 03:35:27,679 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 03:35:27,680 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 03:35:27,680 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-31 03:35:27,680 INFO L791 eck$LassoCheckResult]: Stem: 3940#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(29);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~string46.base, #t~string46.offset := #Ultimate.allocOnStack(10);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(12);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(10);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(18);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(13);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(16);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(10);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(16);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(20);call #t~string85.base, #t~string85.offset := #Ultimate.allocOnStack(44);call #t~string90.base, #t~string90.offset := #Ultimate.allocOnStack(44);call #t~string92.base, #t~string92.offset := #Ultimate.allocOnStack(9);call #t~string94.base, #t~string94.offset := #Ultimate.allocOnStack(9);call #t~string96.base, #t~string96.offset := #Ultimate.allocOnStack(11);call #t~string101.base, #t~string101.offset := #Ultimate.allocOnStack(19);call #t~string104.base, #t~string104.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string104.base, #t~string104.offset, 1);call write~init~int(100, #t~string104.base, 1 + #t~string104.offset, 1);call write~init~int(10, #t~string104.base, 2 + #t~string104.offset, 1);call write~init~int(0, #t~string104.base, 3 + #t~string104.offset, 1);call #t~string107.base, #t~string107.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string107.base, #t~string107.offset, 1);call write~init~int(100, #t~string107.base, 1 + #t~string107.offset, 1);call write~init~int(10, #t~string107.base, 2 + #t~string107.offset, 1);call write~init~int(0, #t~string107.base, 3 + #t~string107.offset, 1);call #t~string114.base, #t~string114.offset := #Ultimate.allocOnStack(16);~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_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;~bob~0 := 0;~rjh~0 := 0;~chuck~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; 3888#L-1 havoc main_#res;havoc main_#t~nondet98, main_#t~ret99, main_~retValue_acc~31, main_~tmp~15;main_~retValue_acc~31 := main_#t~nondet98;havoc main_#t~nondet98;havoc main_~tmp~15; 3494#L461 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 3495#L469 main_#t~ret99 := valid_product_#res;main_~tmp~15 := main_#t~ret99;havoc main_#t~ret99; 3536#L2073 assume 0 != main_~tmp~15;havoc setup_#t~nondet93, setup_#t~nondet95, setup_#t~nondet97, setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset, setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset, setup_~__cil_tmp3~2.base, setup_~__cil_tmp3~2.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_tmp3~2.base, setup_~__cil_tmp3~2.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; 3908#L1906 assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 3654#L1912-2 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; 3655#L1471 assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 3736#L1477-2 setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset := #t~string92.base, #t~string92.offset;havoc setup_#t~nondet93;~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; 3897#L1906-2 assume !(1 == setClientId_~handle); 3604#L1909-2 assume 2 == setClientId_~handle;~__ste_client_idCounter1~0 := setClientId_~value; 3605#L1912-5 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; 3879#L1471-2 assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 3865#L1477-5 setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset := #t~string94.base, #t~string94.offset;havoc setup_#t~nondet95;~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; 3708#L1906-4 assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 3709#L1912-8 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; 3898#L1471-4 assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 3775#L1477-8 setup_~__cil_tmp3~2.base, setup_~__cil_tmp3~2.offset := #t~string96.base, #t~string96.offset;havoc setup_#t~nondet97; 3496#L2060 havoc test_#t~nondet119, test_#t~nondet120, test_#t~nondet121, test_#t~nondet122, test_#t~nondet123, test_#t~nondet124, test_#t~nondet125, test_#t~nondet126, test_#t~nondet127, test_#t~nondet128, test_#t~nondet129, 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___0~6, test_~tmp___1~4, test_~tmp___2~2, 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___0~6;havoc test_~tmp___1~4;havoc test_~tmp___2~2;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; 3497#L2812-1 assume !false; 3610#L2670 [2021-08-31 03:35:27,680 INFO L793 eck$LassoCheckResult]: Loop: 3610#L2670 assume test_~splverifierCounter~0 < 4; 3611#L2671 test_~splverifierCounter~0 := 1 + test_~splverifierCounter~0; 3578#L2677 assume !(0 == test_~op1~0); 3580#L2690 assume !(0 == test_~op2~0); 3572#L2701 assume 0 == test_~op3~0;test_~tmp___7~0 := test_#t~nondet121;havoc test_#t~nondet121; 3781#L2706 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; 3628#L1471-6 assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 3629#L1477-11 test_~op3~0 := 1; 3675#L2812-1 assume !false; 3610#L2670 [2021-08-31 03:35:27,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 03:35:27,681 INFO L82 PathProgramCache]: Analyzing trace with hash -953559564, now seen corresponding path program 1 times [2021-08-31 03:35:27,681 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 03:35:27,681 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761178615] [2021-08-31 03:35:27,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 03:35:27,682 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 03:35:27,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 03:35:27,748 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 03:35:27,748 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-31 03:35:27,749 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761178615] [2021-08-31 03:35:27,749 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761178615] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-31 03:35:27,749 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-31 03:35:27,749 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-31 03:35:27,749 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680777754] [2021-08-31 03:35:27,750 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-08-31 03:35:27,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 03:35:27,750 INFO L82 PathProgramCache]: Analyzing trace with hash -1296812605, now seen corresponding path program 1 times [2021-08-31 03:35:27,750 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 03:35:27,751 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838857267] [2021-08-31 03:35:27,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 03:35:27,751 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 03:35:27,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 03:35:27,758 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 03:35:27,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 03:35:27,772 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 03:35:27,866 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 03:35:27,867 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 03:35:27,867 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 03:35:27,867 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 03:35:27,867 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-31 03:35:27,867 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 03:35:27,867 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 03:35:27,867 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 03:35:27,867 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec27_product13.cil.c_Iteration2_Loop [2021-08-31 03:35:27,868 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 03:35:27,868 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 03:35:27,869 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 03:35:27,874 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 03:35:27,882 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 03:35:27,884 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 03:35:27,890 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 03:35:27,896 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 03:35:27,899 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 03:35:27,990 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 03:35:27,991 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-31 03:35:27,991 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 03:35:27,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 03:35:27,992 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 03:35:28,004 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 03:35:28,004 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 03:35:28,010 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 03:35:28,027 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 03:35:28,027 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 03:35:28,028 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 03:35:28,029 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 03:35:28,031 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-31 03:35:28,032 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 03:35:28,035 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 03:35:28,056 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-31 03:35:28,061 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 03:35:28,061 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 03:35:28,061 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 03:35:28,061 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 03:35:28,061 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 03:35:28,061 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-31 03:35:28,061 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 03:35:28,061 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 03:35:28,061 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 03:35:28,061 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec27_product13.cil.c_Iteration2_Loop [2021-08-31 03:35:28,061 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 03:35:28,062 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 03:35:28,073 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 03:35:28,088 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 03:35:28,093 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 03:35:28,096 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 03:35:28,100 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 03:35:28,106 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 03:35:28,108 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 03:35:28,198 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 03:35:28,198 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-31 03:35:28,198 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 03:35:28,198 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 03:35:28,201 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 03:35:28,207 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 03:35:28,207 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 03:35:28,214 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 03:35:28,214 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 03:35:28,214 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 03:35:28,214 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 03:35:28,214 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 03:35:28,215 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 03:35:28,215 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 03:35:28,228 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-31 03:35:28,230 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-08-31 03:35:28,231 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-08-31 03:35:28,231 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 03:35:28,231 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 03:35:28,237 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 03:35:28,238 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 03:35:28,239 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-31 03:35:28,239 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-08-31 03:35:28,239 INFO L513 LassoAnalysis]: Proved termination. [2021-08-31 03:35:28,239 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 03:35:28,262 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 03:35:28,263 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-08-31 03:35:28,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 03:35:28,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 03:35:28,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 616 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-31 03:35:28,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 03:35:28,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 03:35:28,455 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-31 03:35:28,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 03:35:28,546 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 03:35:28,547 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 03:35:28,547 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 447 states and 807 transitions. cyclomatic complexity: 362 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 03:35:29,433 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 03:35:29,526 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 447 states and 807 transitions. cyclomatic complexity: 362. 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 867 states and 1573 transitions. Complement of second has 6 states. [2021-08-31 03:35:29,527 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 03:35:29,528 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 03:35:29,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 426 transitions. [2021-08-31 03:35:29,528 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 426 transitions. Stem has 20 letters. Loop has 9 letters. [2021-08-31 03:35:29,529 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 03:35:29,529 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 426 transitions. Stem has 29 letters. Loop has 9 letters. [2021-08-31 03:35:29,529 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 03:35:29,529 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 426 transitions. Stem has 20 letters. Loop has 18 letters. [2021-08-31 03:35:29,530 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 03:35:29,530 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 867 states and 1573 transitions. [2021-08-31 03:35:29,537 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-31 03:35:29,537 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 867 states to 0 states and 0 transitions. [2021-08-31 03:35:29,537 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-08-31 03:35:29,537 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-08-31 03:35:29,537 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-08-31 03:35:29,538 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-31 03:35:29,538 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-31 03:35:29,538 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-31 03:35:29,538 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-31 03:35:29,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-31 03:35:29,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-31 03:35:29,539 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 03:35:29,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-31 03:35:29,539 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2021-08-31 03:35:29,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-31 03:35:29,540 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2021-08-31 03:35:29,540 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-31 03:35:29,540 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2021-08-31 03:35:29,540 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-08-31 03:35:29,541 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-08-31 03:35:29,541 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-08-31 03:35:29,541 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-31 03:35:29,541 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-31 03:35:29,541 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-31 03:35:29,541 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-31 03:35:29,541 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-08-31 03:35:29,541 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-08-31 03:35:29,542 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-31 03:35:29,542 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-08-31 03:35:29,545 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 03:35:29,548 INFO L158 Benchmark]: Toolchain (without parser) took 8943.73ms. Allocated memory was 60.8MB in the beginning and 174.1MB in the end (delta: 113.2MB). Free memory was 37.7MB in the beginning and 122.4MB in the end (delta: -84.8MB). Peak memory consumption was 28.0MB. Max. memory is 16.1GB. [2021-08-31 03:35:29,549 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 60.8MB. Free memory was 42.2MB in the beginning and 42.1MB in the end (delta: 48.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-31 03:35:29,549 INFO L158 Benchmark]: CACSL2BoogieTranslator took 697.70ms. Allocated memory was 60.8MB in the beginning and 75.5MB in the end (delta: 14.7MB). Free memory was 37.6MB in the beginning and 47.7MB in the end (delta: -10.1MB). Peak memory consumption was 17.8MB. Max. memory is 16.1GB. [2021-08-31 03:35:29,550 INFO L158 Benchmark]: Boogie Procedure Inliner took 107.61ms. Allocated memory is still 75.5MB. Free memory was 47.3MB in the beginning and 39.7MB in the end (delta: 7.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-08-31 03:35:29,550 INFO L158 Benchmark]: Boogie Preprocessor took 82.12ms. Allocated memory is still 75.5MB. Free memory was 39.3MB in the beginning and 33.7MB in the end (delta: 5.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-08-31 03:35:29,551 INFO L158 Benchmark]: RCFGBuilder took 926.36ms. Allocated memory was 75.5MB in the beginning and 107.0MB in the end (delta: 31.5MB). Free memory was 33.7MB in the beginning and 65.1MB in the end (delta: -31.3MB). Peak memory consumption was 13.9MB. Max. memory is 16.1GB. [2021-08-31 03:35:29,552 INFO L158 Benchmark]: BuchiAutomizer took 7124.03ms. Allocated memory was 107.0MB in the beginning and 174.1MB in the end (delta: 67.1MB). Free memory was 65.1MB in the beginning and 122.4MB in the end (delta: -57.4MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. [2021-08-31 03:35:29,554 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 60.8MB. Free memory was 42.2MB in the beginning and 42.1MB in the end (delta: 48.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 697.70ms. Allocated memory was 60.8MB in the beginning and 75.5MB in the end (delta: 14.7MB). Free memory was 37.6MB in the beginning and 47.7MB in the end (delta: -10.1MB). Peak memory consumption was 17.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 107.61ms. Allocated memory is still 75.5MB. Free memory was 47.3MB in the beginning and 39.7MB in the end (delta: 7.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 82.12ms. Allocated memory is still 75.5MB. Free memory was 39.3MB in the beginning and 33.7MB in the end (delta: 5.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 926.36ms. Allocated memory was 75.5MB in the beginning and 107.0MB in the end (delta: 31.5MB). Free memory was 33.7MB in the beginning and 65.1MB in the end (delta: -31.3MB). Peak memory consumption was 13.9MB. Max. memory is 16.1GB. * BuchiAutomizer took 7124.03ms. Allocated memory was 107.0MB in the beginning and 174.1MB in the end (delta: 67.1MB). Free memory was 65.1MB in the beginning and 122.4MB in the end (delta: -57.4MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 03:35:29,593 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...