./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/email_spec27_product34.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 20ed64ec 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_product34.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 b0e25ef8ce4a0e312b1211bd8feb2d3f355135f3 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 15:48:48,251 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 15:48:48,253 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 15:48:48,296 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 15:48:48,296 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 15:48:48,300 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 15:48:48,302 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 15:48:48,307 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 15:48:48,309 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 15:48:48,313 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 15:48:48,314 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 15:48:48,318 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 15:48:48,318 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 15:48:48,321 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 15:48:48,322 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 15:48:48,324 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 15:48:48,325 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 15:48:48,325 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 15:48:48,329 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 15:48:48,334 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 15:48:48,335 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 15:48:48,336 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 15:48:48,337 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 15:48:48,339 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 15:48:48,344 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 15:48:48,345 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 15:48:48,345 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 15:48:48,347 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 15:48:48,347 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 15:48:48,348 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 15:48:48,348 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 15:48:48,349 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 15:48:48,350 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 15:48:48,351 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 15:48:48,352 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 15:48:48,352 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 15:48:48,353 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 15:48:48,353 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 15:48:48,353 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 15:48:48,355 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 15:48:48,355 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 15:48:48,359 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-08-27 15:48:48,389 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 15:48:48,390 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 15:48:48,391 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 15:48:48,391 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 15:48:48,393 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 15:48:48,393 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 15:48:48,393 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 15:48:48,393 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-27 15:48:48,393 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-27 15:48:48,394 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-27 15:48:48,394 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-27 15:48:48,395 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-27 15:48:48,395 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-27 15:48:48,395 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 15:48:48,395 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 15:48:48,395 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 15:48:48,396 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 15:48:48,396 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 15:48:48,396 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 15:48:48,396 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-27 15:48:48,396 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-27 15:48:48,397 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-27 15:48:48,397 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 15:48:48,397 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-27 15:48:48,397 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-27 15:48:48,397 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 15:48:48,397 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-27 15:48:48,398 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 15:48:48,398 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 15:48:48,398 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 15:48:48,398 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 15:48:48,398 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 15:48:48,400 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-27 15:48:48,400 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b0e25ef8ce4a0e312b1211bd8feb2d3f355135f3 [2021-08-27 15:48:48,689 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 15:48:48,719 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 15:48:48,720 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 15:48:48,721 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 15:48:48,722 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 15:48:48,723 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec27_product34.cil.c [2021-08-27 15:48:48,780 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1144237ca/dfa42d11c02249f6984e15fb78c35ef4/FLAG7d2709d39 [2021-08-27 15:48:49,315 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 15:48:49,315 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec27_product34.cil.c [2021-08-27 15:48:49,345 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1144237ca/dfa42d11c02249f6984e15fb78c35ef4/FLAG7d2709d39 [2021-08-27 15:48:49,593 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1144237ca/dfa42d11c02249f6984e15fb78c35ef4 [2021-08-27 15:48:49,595 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 15:48:49,596 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-27 15:48:49,597 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 15:48:49,598 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 15:48:49,606 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 15:48:49,607 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 03:48:49" (1/1) ... [2021-08-27 15:48:49,608 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79f06aef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:48:49, skipping insertion in model container [2021-08-27 15:48:49,608 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 03:48:49" (1/1) ... [2021-08-27 15:48:49,613 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 15:48:49,677 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 15:48:50,129 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_product34.cil.c[51271,51284] [2021-08-27 15:48:50,183 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 15:48:50,196 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 15:48:50,296 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_product34.cil.c[51271,51284] [2021-08-27 15:48:50,311 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 15:48:50,344 INFO L208 MainTranslator]: Completed translation [2021-08-27 15:48:50,344 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:48:50 WrapperNode [2021-08-27 15:48:50,345 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 15:48:50,346 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-27 15:48:50,346 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-27 15:48:50,346 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-27 15:48:50,351 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:48:50" (1/1) ... [2021-08-27 15:48:50,373 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:48:50" (1/1) ... [2021-08-27 15:48:50,534 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-27 15:48:50,535 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 15:48:50,535 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 15:48:50,535 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 15:48:50,542 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:48:50" (1/1) ... [2021-08-27 15:48:50,542 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:48:50" (1/1) ... [2021-08-27 15:48:50,574 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:48:50" (1/1) ... [2021-08-27 15:48:50,574 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:48:50" (1/1) ... [2021-08-27 15:48:50,649 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:48:50" (1/1) ... [2021-08-27 15:48:50,685 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:48:50" (1/1) ... [2021-08-27 15:48:50,696 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:48:50" (1/1) ... [2021-08-27 15:48:50,714 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 15:48:50,715 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 15:48:50,716 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 15:48:50,716 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 15:48:50,716 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:48:50" (1/1) ... [2021-08-27 15:48:50,722 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:48:50,728 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:48:50,738 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) [2021-08-27 15:48:50,778 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 [2021-08-27 15:48:50,808 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-08-27 15:48:50,809 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 15:48:50,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-27 15:48:50,809 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 15:48:50,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 15:48:53,851 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 15:48:53,852 INFO L299 CfgBuilder]: Removed 861 assume(true) statements. [2021-08-27 15:48:53,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:48:53 BoogieIcfgContainer [2021-08-27 15:48:53,855 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 15:48:53,857 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-27 15:48:53,857 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-27 15:48:53,860 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-27 15:48:53,860 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 15:48:53,861 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.08 03:48:49" (1/3) ... [2021-08-27 15:48:53,861 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4bc9642a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 03:48:53, skipping insertion in model container [2021-08-27 15:48:53,861 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 15:48:53,862 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:48:50" (2/3) ... [2021-08-27 15:48:53,862 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4bc9642a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 03:48:53, skipping insertion in model container [2021-08-27 15:48:53,862 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 15:48:53,862 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:48:53" (3/3) ... [2021-08-27 15:48:53,863 INFO L389 chiAutomizerObserver]: Analyzing ICFG email_spec27_product34.cil.c [2021-08-27 15:48:53,908 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-27 15:48:53,908 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-27 15:48:53,908 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-27 15:48:53,909 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-27 15:48:53,909 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-27 15:48:53,909 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-27 15:48:53,909 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-27 15:48:53,909 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-27 15:48:53,949 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 1314 states, 1313 states have (on average 1.7288651942117288) internal successors, (2270), 1313 states have internal predecessors, (2270), 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) [2021-08-27 15:48:54,020 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 255 [2021-08-27 15:48:54,024 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:48:54,025 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:48:54,035 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 15:48:54,036 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2021-08-27 15:48:54,036 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-27 15:48:54,039 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 1314 states, 1313 states have (on average 1.7288651942117288) internal successors, (2270), 1313 states have internal predecessors, (2270), 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) [2021-08-27 15:48:54,054 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 255 [2021-08-27 15:48:54,054 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:48:54,054 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:48:54,062 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 15:48:54,062 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2021-08-27 15:48:54,066 INFO L791 eck$LassoCheckResult]: Stem: 636#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~string10.base, #t~string10.offset := #Ultimate.allocOnStack(10);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(12);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(10);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(18);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(16);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(13);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(16);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(25);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string49.base, #t~string49.offset, 1);call write~init~int(115, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(10, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 3 + #t~string49.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(10);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(34);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(16);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(20);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(21);call #t~string86.base, #t~string86.offset := #Ultimate.allocOnStack(16);call #t~string109.base, #t~string109.offset := #Ultimate.allocOnStack(30);call #t~string110.base, #t~string110.offset := #Ultimate.allocOnStack(9);call #t~string111.base, #t~string111.offset := #Ultimate.allocOnStack(21);call #t~string112.base, #t~string112.offset := #Ultimate.allocOnStack(30);call #t~string113.base, #t~string113.offset := #Ultimate.allocOnStack(9);call #t~string114.base, #t~string114.offset := #Ultimate.allocOnStack(21);call #t~string118.base, #t~string118.offset := #Ultimate.allocOnStack(30);call #t~string119.base, #t~string119.offset := #Ultimate.allocOnStack(9);call #t~string120.base, #t~string120.offset := #Ultimate.allocOnStack(25);call #t~string121.base, #t~string121.offset := #Ultimate.allocOnStack(30);call #t~string122.base, #t~string122.offset := #Ultimate.allocOnStack(9);call #t~string123.base, #t~string123.offset := #Ultimate.allocOnStack(25);call #t~string126.base, #t~string126.offset := #Ultimate.allocOnStack(44);call #t~string131.base, #t~string131.offset := #Ultimate.allocOnStack(44);call #t~string133.base, #t~string133.offset := #Ultimate.allocOnStack(9);call #t~string135.base, #t~string135.offset := #Ultimate.allocOnStack(9);call #t~string137.base, #t~string137.offset := #Ultimate.allocOnStack(11);call #t~string141.base, #t~string141.offset := #Ultimate.allocOnStack(19);call #t~string144.base, #t~string144.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string144.base, #t~string144.offset, 1);call write~init~int(100, #t~string144.base, 1 + #t~string144.offset, 1);call write~init~int(10, #t~string144.base, 2 + #t~string144.offset, 1);call write~init~int(0, #t~string144.base, 3 + #t~string144.offset, 1);call #t~string147.base, #t~string147.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string147.base, #t~string147.offset, 1);call write~init~int(100, #t~string147.base, 1 + #t~string147.offset, 1);call write~init~int(10, #t~string147.base, 2 + #t~string147.offset, 1);call write~init~int(0, #t~string147.base, 3 + #t~string147.offset, 1);~__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;~__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;~__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;~queue_empty~0 := 1;~queued_message~0 := 0;~queued_client~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~bob~0 := 0;~rjh~0 := 0;~chuck~0 := 0; 1181#L-1true havoc main_#res;havoc main_#t~ret139, main_~retValue_acc~43, main_~tmp~23;havoc main_~retValue_acc~43;havoc main_~tmp~23; 1200#L1954true havoc valid_product_#res;havoc valid_product_~retValue_acc~34;havoc valid_product_~retValue_acc~34;valid_product_~retValue_acc~34 := 1;valid_product_#res := valid_product_~retValue_acc~34; 1068#L1962true main_#t~ret139 := valid_product_#res;main_~tmp~23 := main_#t~ret139;havoc main_#t~ret139; 304#L2921true assume 0 != main_~tmp~23;havoc setup_#t~nondet134, setup_#t~nondet136, setup_#t~nondet138, setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset, setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset, setup_~__cil_tmp3~4.base, setup_~__cil_tmp3~4.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_tmp3~4.base, setup_~__cil_tmp3~4.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; 1263#L1104true assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 660#L1110-2true 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; 1113#L669true assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 349#L675-2true setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset := #t~string133.base, #t~string133.offset;havoc setup_#t~nondet134;~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; 250#L1104-2true assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 638#L1110-5true 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; 382#L669-2true assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 1140#L675-5true setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset := #t~string135.base, #t~string135.offset;havoc setup_#t~nondet136;~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; 1011#L1104-4true assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 105#L1110-8true 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; 695#L669-4true assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 363#L675-8true setup_~__cil_tmp3~4.base, setup_~__cil_tmp3~4.offset := #t~string137.base, #t~string137.offset;havoc setup_#t~nondet138; 1030#L2908true havoc test_#t~nondet38, test_#t~nondet39, test_#t~nondet40, test_#t~nondet41, test_#t~nondet42, test_#t~nondet43, test_#t~nondet44, test_#t~nondet45, test_#t~nondet46, test_#t~nondet47, test_#t~nondet48, 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~7, test_~tmp___0~3, test_~tmp___1~1, test_~tmp___2~1, test_~tmp___3~0, test_~tmp___4~0, 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~7;havoc test_~tmp___0~3;havoc test_~tmp___1~1;havoc test_~tmp___2~1;havoc test_~tmp___3~0;havoc test_~tmp___4~0;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; 829#L1479-1true [2021-08-27 15:48:54,067 INFO L793 eck$LassoCheckResult]: Loop: 829#L1479-1true assume !false; 1075#L1331true assume test_~splverifierCounter~0 < 4; 313#L1332true test_~splverifierCounter~0 := 1 + test_~splverifierCounter~0; 228#L1338true assume !(0 == test_~op1~0); 179#L1351true assume 0 == test_~op2~0;test_~tmp___8~0 := test_#t~nondet39;havoc test_#t~nondet39; 290#L1356true assume 0 != test_~tmp___8~0;test_~op2~0 := 1; 829#L1479-1true [2021-08-27 15:48:54,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:48:54,071 INFO L82 PathProgramCache]: Analyzing trace with hash 1291925977, now seen corresponding path program 1 times [2021-08-27 15:48:54,078 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:48:54,078 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884204748] [2021-08-27 15:48:54,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:48:54,079 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:48:54,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:48:54,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 15:48:54,359 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 15:48:54,359 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884204748] [2021-08-27 15:48:54,359 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884204748] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 15:48:54,360 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 15:48:54,360 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 15:48:54,361 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076526982] [2021-08-27 15:48:54,365 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-08-27 15:48:54,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:48:54,366 INFO L82 PathProgramCache]: Analyzing trace with hash 590492675, now seen corresponding path program 1 times [2021-08-27 15:48:54,366 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:48:54,366 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206236480] [2021-08-27 15:48:54,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:48:54,367 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:48:54,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:48:54,375 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:48:54,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:48:54,410 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:48:54,467 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 15:48:54,468 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 15:48:54,468 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 15:48:54,468 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 15:48:54,468 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-27 15:48:54,468 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:48:54,468 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 15:48:54,469 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 15:48:54,469 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec27_product34.cil.c_Iteration1_Loop [2021-08-27 15:48:54,469 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 15:48:54,469 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 15:48:54,483 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:48:54,492 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:48:54,498 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:48:54,504 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:48:54,567 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 15:48:54,567 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-27 15:48:54,570 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:48:54,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:48:54,576 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) [2021-08-27 15:48:54,589 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 15:48:54,589 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 15:48:54,604 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 [2021-08-27 15:48:54,626 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-08-27 15:48:54,627 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:48:54,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:48:54,628 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) [2021-08-27 15:48:54,631 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 [2021-08-27 15:48:54,632 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-27 15:48:54,632 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 15:48:54,645 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-27 15:48:54,660 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2021-08-27 15:48:54,661 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 15:48:54,661 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 15:48:54,661 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 15:48:54,661 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 15:48:54,661 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 15:48:54,661 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:48:54,661 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 15:48:54,661 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 15:48:54,662 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec27_product34.cil.c_Iteration1_Loop [2021-08-27 15:48:54,662 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 15:48:54,662 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 15:48:54,662 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:48:54,679 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:48:54,684 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:48:54,689 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:48:54,746 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 15:48:54,750 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 15:48:54,751 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:48:54,751 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:48:54,752 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) [2021-08-27 15:48:54,785 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 [2021-08-27 15:48:54,786 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 [2021-08-27 15:48:54,792 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:48:54,792 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:48:54,793 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:48:54,793 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:48:54,793 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:48:54,796 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:48:54,796 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:48:54,802 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 15:48:54,805 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-08-27 15:48:54,805 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-08-27 15:48:54,806 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:48:54,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:48:54,809 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) [2021-08-27 15:48:54,810 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 [2021-08-27 15:48:54,811 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 15:48:54,811 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-08-27 15:48:54,812 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 15:48:54,812 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_test_~op2~0) = -2*ULTIMATE.start_test_~op2~0 + 1 Supporting invariants [] [2021-08-27 15:48:54,841 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 [2021-08-27 15:48:54,847 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-08-27 15:48:54,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:48:55,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:48:55,070 INFO L263 TraceCheckSpWp]: Trace formula consists of 643 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 15:48:55,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:48:55,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:48:55,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 15:48:55,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:48:55,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 15:48:55,252 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 [2021-08-27 15:48:55,256 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 1314 states, 1313 states have (on average 1.7288651942117288) internal successors, (2270), 1313 states have internal predecessors, (2270), 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) [2021-08-27 15:48:55,507 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 [2021-08-27 15:48:55,606 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 1314 states, 1313 states have (on average 1.7288651942117288) internal successors, (2270), 1313 states have internal predecessors, (2270), 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 6200 states and 10672 transitions. Complement of second has 7 states. [2021-08-27 15:48:55,607 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 [2021-08-27 15:48:55,608 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) [2021-08-27 15:48:55,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 6242 transitions. [2021-08-27 15:48:55,617 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 6242 transitions. Stem has 18 letters. Loop has 6 letters. [2021-08-27 15:48:55,618 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:48:55,618 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 6242 transitions. Stem has 24 letters. Loop has 6 letters. [2021-08-27 15:48:55,619 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:48:55,619 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 6242 transitions. Stem has 18 letters. Loop has 12 letters. [2021-08-27 15:48:55,619 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:48:55,620 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 6200 states and 10672 transitions. [2021-08-27 15:48:55,673 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 509 [2021-08-27 15:48:55,684 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 6200 states to 1051 states and 1924 transitions. [2021-08-27 15:48:55,685 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 540 [2021-08-27 15:48:55,686 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 541 [2021-08-27 15:48:55,687 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1051 states and 1924 transitions. [2021-08-27 15:48:55,690 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 15:48:55,690 INFO L681 BuchiCegarLoop]: Abstraction has 1051 states and 1924 transitions. [2021-08-27 15:48:55,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1051 states and 1924 transitions. [2021-08-27 15:48:55,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1051 to 542. [2021-08-27 15:48:55,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 542 states, 542 states have (on average 1.8247232472324724) internal successors, (989), 541 states have internal predecessors, (989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:48:55,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 989 transitions. [2021-08-27 15:48:55,761 INFO L704 BuchiCegarLoop]: Abstraction has 542 states and 989 transitions. [2021-08-27 15:48:55,761 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 15:48:55,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 15:48:55,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 15:48:55,767 INFO L87 Difference]: Start difference. First operand 542 states and 989 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:48:55,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 15:48:55,814 INFO L93 Difference]: Finished difference Result 1064 states and 1943 transitions. [2021-08-27 15:48:55,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 15:48:55,815 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1064 states and 1943 transitions. [2021-08-27 15:48:55,822 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 510 [2021-08-27 15:48:55,829 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1064 states to 1064 states and 1943 transitions. [2021-08-27 15:48:55,830 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 552 [2021-08-27 15:48:55,831 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 552 [2021-08-27 15:48:55,831 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1064 states and 1943 transitions. [2021-08-27 15:48:55,831 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 15:48:55,831 INFO L681 BuchiCegarLoop]: Abstraction has 1064 states and 1943 transitions. [2021-08-27 15:48:55,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1064 states and 1943 transitions. [2021-08-27 15:48:55,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1064 to 541. [2021-08-27 15:48:55,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 541 states have (on average 1.820702402957486) internal successors, (985), 540 states have internal predecessors, (985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:48:55,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 985 transitions. [2021-08-27 15:48:55,846 INFO L704 BuchiCegarLoop]: Abstraction has 541 states and 985 transitions. [2021-08-27 15:48:55,846 INFO L587 BuchiCegarLoop]: Abstraction has 541 states and 985 transitions. [2021-08-27 15:48:55,846 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-27 15:48:55,846 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 541 states and 985 transitions. [2021-08-27 15:48:55,849 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 255 [2021-08-27 15:48:55,849 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:48:55,849 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:48:55,850 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] [2021-08-27 15:48:55,851 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 15:48:55,851 INFO L791 eck$LassoCheckResult]: Stem: 9757#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~string10.base, #t~string10.offset := #Ultimate.allocOnStack(10);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(12);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(10);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(18);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(16);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(13);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(16);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(25);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string49.base, #t~string49.offset, 1);call write~init~int(115, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(10, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 3 + #t~string49.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(10);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(34);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(16);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(20);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(21);call #t~string86.base, #t~string86.offset := #Ultimate.allocOnStack(16);call #t~string109.base, #t~string109.offset := #Ultimate.allocOnStack(30);call #t~string110.base, #t~string110.offset := #Ultimate.allocOnStack(9);call #t~string111.base, #t~string111.offset := #Ultimate.allocOnStack(21);call #t~string112.base, #t~string112.offset := #Ultimate.allocOnStack(30);call #t~string113.base, #t~string113.offset := #Ultimate.allocOnStack(9);call #t~string114.base, #t~string114.offset := #Ultimate.allocOnStack(21);call #t~string118.base, #t~string118.offset := #Ultimate.allocOnStack(30);call #t~string119.base, #t~string119.offset := #Ultimate.allocOnStack(9);call #t~string120.base, #t~string120.offset := #Ultimate.allocOnStack(25);call #t~string121.base, #t~string121.offset := #Ultimate.allocOnStack(30);call #t~string122.base, #t~string122.offset := #Ultimate.allocOnStack(9);call #t~string123.base, #t~string123.offset := #Ultimate.allocOnStack(25);call #t~string126.base, #t~string126.offset := #Ultimate.allocOnStack(44);call #t~string131.base, #t~string131.offset := #Ultimate.allocOnStack(44);call #t~string133.base, #t~string133.offset := #Ultimate.allocOnStack(9);call #t~string135.base, #t~string135.offset := #Ultimate.allocOnStack(9);call #t~string137.base, #t~string137.offset := #Ultimate.allocOnStack(11);call #t~string141.base, #t~string141.offset := #Ultimate.allocOnStack(19);call #t~string144.base, #t~string144.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string144.base, #t~string144.offset, 1);call write~init~int(100, #t~string144.base, 1 + #t~string144.offset, 1);call write~init~int(10, #t~string144.base, 2 + #t~string144.offset, 1);call write~init~int(0, #t~string144.base, 3 + #t~string144.offset, 1);call #t~string147.base, #t~string147.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string147.base, #t~string147.offset, 1);call write~init~int(100, #t~string147.base, 1 + #t~string147.offset, 1);call write~init~int(10, #t~string147.base, 2 + #t~string147.offset, 1);call write~init~int(0, #t~string147.base, 3 + #t~string147.offset, 1);~__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;~__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;~__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;~queue_empty~0 := 1;~queued_message~0 := 0;~queued_client~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~bob~0 := 0;~rjh~0 := 0;~chuck~0 := 0; 9703#L-1 havoc main_#res;havoc main_#t~ret139, main_~retValue_acc~43, main_~tmp~23;havoc main_~retValue_acc~43;havoc main_~tmp~23; 9704#L1954 havoc valid_product_#res;havoc valid_product_~retValue_acc~34;havoc valid_product_~retValue_acc~34;valid_product_~retValue_acc~34 := 1;valid_product_#res := valid_product_~retValue_acc~34; 9541#L1962 main_#t~ret139 := valid_product_#res;main_~tmp~23 := main_#t~ret139;havoc main_#t~ret139; 9542#L2921 assume 0 != main_~tmp~23;havoc setup_#t~nondet134, setup_#t~nondet136, setup_#t~nondet138, setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset, setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset, setup_~__cil_tmp3~4.base, setup_~__cil_tmp3~4.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_tmp3~4.base, setup_~__cil_tmp3~4.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; 9746#L1104 assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 9243#L1110-2 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; 9244#L669 assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 9331#L675-2 setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset := #t~string133.base, #t~string133.offset;havoc setup_#t~nondet134;~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; 9332#L1104-2 assume !(1 == setClientId_~handle); 9733#L1107-2 assume 2 == setClientId_~handle;~__ste_client_idCounter1~0 := setClientId_~value; 9756#L1110-5 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; 9426#L669-2 assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 9300#L675-5 setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset := #t~string135.base, #t~string135.offset;havoc setup_#t~nondet136;~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; 9324#L1104-4 assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 9325#L1110-8 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; 9363#L669-4 assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 9364#L675-8 setup_~__cil_tmp3~4.base, setup_~__cil_tmp3~4.offset := #t~string137.base, #t~string137.offset;havoc setup_#t~nondet138; 9382#L2908 havoc test_#t~nondet38, test_#t~nondet39, test_#t~nondet40, test_#t~nondet41, test_#t~nondet42, test_#t~nondet43, test_#t~nondet44, test_#t~nondet45, test_#t~nondet46, test_#t~nondet47, test_#t~nondet48, 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~7, test_~tmp___0~3, test_~tmp___1~1, test_~tmp___2~1, test_~tmp___3~0, test_~tmp___4~0, 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~7;havoc test_~tmp___0~3;havoc test_~tmp___1~1;havoc test_~tmp___2~1;havoc test_~tmp___3~0;havoc test_~tmp___4~0;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; 9385#L1479-1 assume !false; 9549#L1331 [2021-08-27 15:48:55,851 INFO L793 eck$LassoCheckResult]: Loop: 9549#L1331 assume test_~splverifierCounter~0 < 4; 9550#L1332 test_~splverifierCounter~0 := 1 + test_~splverifierCounter~0; 9715#L1338 assume !(0 == test_~op1~0); 9615#L1351 assume !(0 == test_~op2~0); 9661#L1362 assume 0 == test_~op3~0;test_~tmp___7~0 := test_#t~nondet40;havoc test_#t~nondet40; 9511#L1367 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; 9251#L669-6 assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 9236#L675-11 test_~op3~0 := 1; 9433#L1479-1 assume !false; 9549#L1331 [2021-08-27 15:48:55,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:48:55,852 INFO L82 PathProgramCache]: Analyzing trace with hash -953559564, now seen corresponding path program 1 times [2021-08-27 15:48:55,853 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:48:55,853 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343752148] [2021-08-27 15:48:55,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:48:55,854 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:48:55,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:48:56,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 15:48:56,006 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 15:48:56,006 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343752148] [2021-08-27 15:48:56,006 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343752148] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 15:48:56,007 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 15:48:56,007 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-27 15:48:56,007 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189009352] [2021-08-27 15:48:56,007 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-08-27 15:48:56,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:48:56,009 INFO L82 PathProgramCache]: Analyzing trace with hash -1296812605, now seen corresponding path program 1 times [2021-08-27 15:48:56,009 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:48:56,009 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939979650] [2021-08-27 15:48:56,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:48:56,010 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:48:56,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:48:56,024 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:48:56,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:48:56,052 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:48:56,151 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 15:48:56,151 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 15:48:56,152 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 15:48:56,152 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 15:48:56,152 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-27 15:48:56,152 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:48:56,152 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 15:48:56,152 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 15:48:56,153 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec27_product34.cil.c_Iteration2_Loop [2021-08-27 15:48:56,153 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 15:48:56,153 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 15:48:56,154 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:48:56,160 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:48:56,166 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:48:56,171 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:48:56,177 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:48:56,181 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:48:56,185 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:48:56,297 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 15:48:56,298 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-27 15:48:56,298 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:48:56,298 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:48:56,299 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) [2021-08-27 15:48:56,307 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 15:48:56,308 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 15:48:56,321 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 [2021-08-27 15:48:56,330 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-27 15:48:56,330 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_setClientPrivateKey_#in~value=0, ULTIMATE.start_setClientPrivateKey_~value=0, ~__ste_client_privateKey0~0=0} Honda state: {ULTIMATE.start_setClientPrivateKey_#in~value=0, ULTIMATE.start_setClientPrivateKey_~value=0, ~__ste_client_privateKey0~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-27 15:48:56,359 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 [2021-08-27 15:48:56,360 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:48:56,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:48:56,361 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) [2021-08-27 15:48:56,362 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 [2021-08-27 15:48:56,364 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 15:48:56,364 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 15:48:56,411 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 [2021-08-27 15:48:56,411 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:48:56,412 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:48:56,413 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) [2021-08-27 15:48:56,414 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 [2021-08-27 15:48:56,415 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-27 15:48:56,415 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 15:48:56,467 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-27 15:48:56,473 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 [2021-08-27 15:48:56,474 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 15:48:56,474 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 15:48:56,474 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 15:48:56,474 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 15:48:56,474 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 15:48:56,474 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:48:56,474 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 15:48:56,474 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 15:48:56,475 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec27_product34.cil.c_Iteration2_Loop [2021-08-27 15:48:56,475 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 15:48:56,475 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 15:48:56,476 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:48:56,486 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:48:56,494 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:48:56,497 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:48:56,503 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:48:56,506 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:48:56,514 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:48:56,641 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 15:48:56,641 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 15:48:56,641 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:48:56,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:48:56,642 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) [2021-08-27 15:48:56,652 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 [2021-08-27 15:48:56,658 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:48:56,659 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:48:56,659 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:48:56,659 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:48:56,659 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:48:56,660 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:48:56,660 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:48:56,663 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 [2021-08-27 15:48:56,680 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 15:48:56,683 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-08-27 15:48:56,683 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-08-27 15:48:56,684 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:48:56,684 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:48:56,685 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:48:56,686 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-08-27 15:48:56,687 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 15:48:56,687 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-08-27 15:48:56,687 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 15:48:56,687 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_test_~splverifierCounter~0) = -2*ULTIMATE.start_test_~splverifierCounter~0 + 7 Supporting invariants [] [2021-08-27 15:48:56,713 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 [2021-08-27 15:48:56,714 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-08-27 15:48:56,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:48:56,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:48:56,870 INFO L263 TraceCheckSpWp]: Trace formula consists of 645 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 15:48:56,872 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:48:56,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:48:56,964 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 15:48:56,965 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:48:57,089 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-08-27 15:48:57,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 15:48:57,109 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 [2021-08-27 15:48:57,109 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 541 states and 985 transitions. cyclomatic complexity: 446 Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:48:57,134 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 541 states and 985 transitions. cyclomatic complexity: 446. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 1055 states and 1929 transitions. Complement of second has 6 states. [2021-08-27 15:48:57,135 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 [2021-08-27 15:48:57,135 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) [2021-08-27 15:48:57,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 515 transitions. [2021-08-27 15:48:57,136 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 515 transitions. Stem has 20 letters. Loop has 9 letters. [2021-08-27 15:48:57,137 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:48:57,137 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 515 transitions. Stem has 29 letters. Loop has 9 letters. [2021-08-27 15:48:57,138 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:48:57,138 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 515 transitions. Stem has 20 letters. Loop has 18 letters. [2021-08-27 15:48:57,140 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:48:57,140 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1055 states and 1929 transitions. [2021-08-27 15:48:57,148 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-27 15:48:57,148 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1055 states to 0 states and 0 transitions. [2021-08-27 15:48:57,148 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-08-27 15:48:57,148 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-08-27 15:48:57,148 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-08-27 15:48:57,149 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 15:48:57,149 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 15:48:57,149 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 15:48:57,149 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 15:48:57,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 15:48:57,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 15:48:57,150 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) [2021-08-27 15:48:57,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 15:48:57,150 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2021-08-27 15:48:57,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-27 15:48:57,151 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2021-08-27 15:48:57,151 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-27 15:48:57,151 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2021-08-27 15:48:57,151 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-08-27 15:48:57,151 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-08-27 15:48:57,151 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-08-27 15:48:57,152 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 15:48:57,152 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 15:48:57,152 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 15:48:57,152 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 15:48:57,152 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-08-27 15:48:57,152 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-08-27 15:48:57,152 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-27 15:48:57,152 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-08-27 15:48:57,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.08 03:48:57 BoogieIcfgContainer [2021-08-27 15:48:57,160 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-08-27 15:48:57,160 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 15:48:57,161 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 15:48:57,161 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 15:48:57,161 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:48:53" (3/4) ... [2021-08-27 15:48:57,164 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-27 15:48:57,164 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 15:48:57,166 INFO L168 Benchmark]: Toolchain (without parser) took 7568.29 ms. Allocated memory was 56.6 MB in the beginning and 364.9 MB in the end (delta: 308.3 MB). Free memory was 32.7 MB in the beginning and 281.7 MB in the end (delta: -249.0 MB). Peak memory consumption was 59.7 MB. Max. memory is 16.1 GB. [2021-08-27 15:48:57,170 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 56.6 MB. Free memory was 39.0 MB in the beginning and 38.9 MB in the end (delta: 43.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 15:48:57,171 INFO L168 Benchmark]: CACSL2BoogieTranslator took 747.52 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 32.6 MB in the beginning and 41.3 MB in the end (delta: -8.8 MB). Peak memory consumption was 16.1 MB. Max. memory is 16.1 GB. [2021-08-27 15:48:57,173 INFO L168 Benchmark]: Boogie Procedure Inliner took 188.95 ms. Allocated memory is still 69.2 MB. Free memory was 41.3 MB in the beginning and 32.7 MB in the end (delta: 8.6 MB). Peak memory consumption was 13.7 MB. Max. memory is 16.1 GB. [2021-08-27 15:48:57,174 INFO L168 Benchmark]: Boogie Preprocessor took 179.61 ms. Allocated memory is still 69.2 MB. Free memory was 32.7 MB in the beginning and 27.6 MB in the end (delta: 5.1 MB). Peak memory consumption was 9.5 MB. Max. memory is 16.1 GB. [2021-08-27 15:48:57,174 INFO L168 Benchmark]: RCFGBuilder took 3139.94 ms. Allocated memory was 69.2 MB in the beginning and 218.1 MB in the end (delta: 148.9 MB). Free memory was 27.6 MB in the beginning and 139.9 MB in the end (delta: -112.3 MB). Peak memory consumption was 107.6 MB. Max. memory is 16.1 GB. [2021-08-27 15:48:57,176 INFO L168 Benchmark]: BuchiAutomizer took 3302.69 ms. Allocated memory was 218.1 MB in the beginning and 364.9 MB in the end (delta: 146.8 MB). Free memory was 138.8 MB in the beginning and 282.7 MB in the end (delta: -143.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 16.1 GB. [2021-08-27 15:48:57,177 INFO L168 Benchmark]: Witness Printer took 3.39 ms. Allocated memory is still 364.9 MB. Free memory was 282.7 MB in the beginning and 281.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 15:48:57,183 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 56.6 MB. Free memory was 39.0 MB in the beginning and 38.9 MB in the end (delta: 43.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 747.52 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 32.6 MB in the beginning and 41.3 MB in the end (delta: -8.8 MB). Peak memory consumption was 16.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 188.95 ms. Allocated memory is still 69.2 MB. Free memory was 41.3 MB in the beginning and 32.7 MB in the end (delta: 8.6 MB). Peak memory consumption was 13.7 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 179.61 ms. Allocated memory is still 69.2 MB. Free memory was 32.7 MB in the beginning and 27.6 MB in the end (delta: 5.1 MB). Peak memory consumption was 9.5 MB. Max. memory is 16.1 GB. * RCFGBuilder took 3139.94 ms. Allocated memory was 69.2 MB in the beginning and 218.1 MB in the end (delta: 148.9 MB). Free memory was 27.6 MB in the beginning and 139.9 MB in the end (delta: -112.3 MB). Peak memory consumption was 107.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 3302.69 ms. Allocated memory was 218.1 MB in the beginning and 364.9 MB in the end (delta: 146.8 MB). Free memory was 138.8 MB in the beginning and 282.7 MB in the end (delta: -143.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 16.1 GB. * Witness Printer took 3.39 ms. Allocated memory is still 364.9 MB. Free memory was 282.7 MB in the beginning and 281.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * 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. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.2s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.6s. Construction of modules took 0.0s. Büchi inclusion checks took 1.2s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 2. Automata minimization 74.6ms AutomataMinimizationTime, 2 MinimizatonAttempts, 1032 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 541 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 5981 SDtfs, 5480 SDslu, 8051 SDs, 0 SdLazy, 26 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 22.6ms Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT2 lasso0 LassoPreprocessingBenchmarks: Lassos: inital38 mio100 ax100 hnf100 lsp29 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq189 hnf90 smp100 dnf134 smp100 tf108 neg92 sie116 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 61ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-08-27 15:48:57,224 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...