java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/email_spec8_product31.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:17:22,889 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:17:22,892 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:17:22,904 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:17:22,905 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:17:22,906 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:17:22,908 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:17:22,910 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:17:22,911 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:17:22,912 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:17:22,913 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:17:22,915 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:17:22,915 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:17:22,916 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:17:22,917 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:17:22,918 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:17:22,919 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:17:22,920 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:17:22,921 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:17:22,924 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:17:22,928 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:17:22,929 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:17:22,931 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:17:22,932 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:17:22,937 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 03:17:22,938 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 03:17:22,938 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 03:17:22,940 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 03:17:22,941 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 03:17:22,944 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 03:17:22,944 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:17:22,946 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:17:22,947 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:17:22,948 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:17:22,952 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:17:22,952 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:17:22,953 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:17:22,953 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:17:22,954 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:17:22,956 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:17:22,959 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:17:22,961 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 03:17:22,982 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:17:22,982 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:17:22,985 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:17:22,985 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:17:22,985 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:17:22,986 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:17:22,986 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:17:22,986 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:17:22,986 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:17:22,986 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:17:22,988 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:17:22,988 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:17:22,988 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:17:22,988 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:17:22,989 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:17:22,989 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:17:22,989 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:17:22,989 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:17:22,989 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:17:22,990 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:17:22,990 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:17:22,990 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:17:22,990 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:17:22,990 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:17:22,991 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:17:22,991 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:17:22,991 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:17:22,991 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:17:22,991 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-15 03:17:23,276 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:17:23,289 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:17:23,293 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:17:23,295 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:17:23,295 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:17:23,296 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec8_product31.cil.c [2019-10-15 03:17:23,361 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/844db73ae/0572cff4a5674ce3a829cc557d8446f0/FLAG5f4ff2970 [2019-10-15 03:17:23,987 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:17:23,989 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec8_product31.cil.c [2019-10-15 03:17:24,017 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/844db73ae/0572cff4a5674ce3a829cc557d8446f0/FLAG5f4ff2970 [2019-10-15 03:17:24,234 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/844db73ae/0572cff4a5674ce3a829cc557d8446f0 [2019-10-15 03:17:24,247 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:17:24,248 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:17:24,249 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:17:24,249 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:17:24,253 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:17:24,254 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:17:24" (1/1) ... [2019-10-15 03:17:24,257 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@711b24de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:24, skipping insertion in model container [2019-10-15 03:17:24,257 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:17:24" (1/1) ... [2019-10-15 03:17:24,265 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:17:24,345 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:17:25,146 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:17:25,168 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:17:25,275 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:17:25,367 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:17:25,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:25 WrapperNode [2019-10-15 03:17:25,367 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:17:25,368 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:17:25,368 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:17:25,369 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:17:25,383 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:25" (1/1) ... [2019-10-15 03:17:25,383 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:25" (1/1) ... [2019-10-15 03:17:25,417 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:25" (1/1) ... [2019-10-15 03:17:25,417 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:25" (1/1) ... [2019-10-15 03:17:25,478 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:25" (1/1) ... [2019-10-15 03:17:25,517 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:25" (1/1) ... [2019-10-15 03:17:25,530 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:25" (1/1) ... [2019-10-15 03:17:25,549 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:17:25,550 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:17:25,550 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:17:25,550 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:17:25,553 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:25" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:17:25,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:17:25,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:17:25,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 03:17:25,638 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 03:17:25,638 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 03:17:25,639 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 03:17:25,639 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 03:17:25,639 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 03:17:25,639 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 03:17:25,640 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 03:17:25,640 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 03:17:25,640 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 03:17:25,640 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 03:17:25,640 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 03:17:25,641 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 03:17:25,641 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 03:17:25,641 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 03:17:25,641 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 03:17:25,642 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 03:17:25,642 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 03:17:25,642 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 03:17:25,643 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 03:17:25,644 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 03:17:25,644 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 03:17:25,644 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 03:17:25,644 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 03:17:25,644 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 03:17:25,644 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 03:17:25,645 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 03:17:25,645 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 03:17:25,645 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 03:17:25,645 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 03:17:25,646 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 03:17:25,646 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 03:17:25,646 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 03:17:25,647 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 03:17:25,647 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 03:17:25,647 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 03:17:25,647 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 03:17:25,647 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 03:17:25,648 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 03:17:25,648 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Encrypt [2019-10-15 03:17:25,648 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-15 03:17:25,648 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 03:17:25,648 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 03:17:25,648 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 03:17:25,649 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 03:17:25,649 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 03:17:25,649 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 03:17:25,649 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 03:17:25,649 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 03:17:25,649 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 03:17:25,649 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 03:17:25,650 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 03:17:25,650 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 03:17:25,650 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 03:17:25,650 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 03:17:25,650 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 03:17:25,651 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 03:17:25,651 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 03:17:25,651 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 03:17:25,651 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 03:17:25,652 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 03:17:25,652 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 03:17:25,652 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 03:17:25,652 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 03:17:25,652 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 03:17:25,652 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 03:17:25,653 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 03:17:25,653 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 03:17:25,653 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 03:17:25,653 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 03:17:25,653 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 03:17:25,654 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 03:17:25,654 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 03:17:25,655 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-15 03:17:25,655 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 03:17:25,655 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 03:17:25,655 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-15 03:17:25,656 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-15 03:17:25,657 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-15 03:17:25,657 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 03:17:25,657 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 03:17:25,657 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 03:17:25,657 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 03:17:25,658 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 03:17:25,658 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 03:17:25,659 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 03:17:25,659 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 03:17:25,659 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 03:17:25,659 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-15 03:17:25,659 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-15 03:17:25,659 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-15 03:17:25,660 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 03:17:25,660 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 03:17:25,660 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 03:17:25,660 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 03:17:25,660 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 03:17:25,660 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 03:17:25,660 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 03:17:25,661 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 03:17:25,661 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 03:17:25,661 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:17:25,661 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 03:17:25,661 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 03:17:25,661 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 03:17:25,662 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 03:17:25,662 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 03:17:25,662 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 03:17:25,662 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 03:17:25,662 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 03:17:25,663 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 03:17:25,663 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-15 03:17:25,663 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 03:17:25,663 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptAutoResponder_spec__1 [2019-10-15 03:17:25,664 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptAutoResponder_spec__2 [2019-10-15 03:17:25,664 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:17:25,664 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:17:25,664 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 03:17:25,664 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 03:17:25,665 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 03:17:25,665 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 03:17:25,665 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 03:17:25,665 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 03:17:25,667 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 03:17:25,667 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 03:17:25,667 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 03:17:25,667 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 03:17:25,667 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 03:17:25,667 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 03:17:25,667 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 03:17:25,668 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 03:17:25,668 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 03:17:25,669 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 03:17:25,673 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 03:17:25,673 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 03:17:25,673 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 03:17:25,673 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 03:17:25,673 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 03:17:25,674 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 03:17:25,674 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 03:17:25,674 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 03:17:25,675 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 03:17:25,675 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 03:17:25,682 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 03:17:25,682 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 03:17:25,682 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 03:17:25,683 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 03:17:25,683 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 03:17:25,683 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 03:17:25,683 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 03:17:25,683 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 03:17:25,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 03:17:25,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 03:17:25,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 03:17:25,684 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 03:17:25,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 03:17:25,684 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 03:17:25,685 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 03:17:25,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 03:17:25,685 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 03:17:25,685 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 03:17:25,685 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 03:17:25,685 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 03:17:25,685 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 03:17:25,686 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 03:17:25,686 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 03:17:25,686 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 03:17:25,686 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 03:17:25,686 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 03:17:25,686 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 03:17:25,686 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 03:17:25,686 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 03:17:25,687 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 03:17:25,687 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 03:17:25,687 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 03:17:25,687 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 03:17:25,687 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 03:17:25,687 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 03:17:25,687 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 03:17:25,687 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 03:17:25,688 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 03:17:25,688 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Encrypt [2019-10-15 03:17:25,688 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-15 03:17:25,688 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 03:17:25,688 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 03:17:25,688 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 03:17:25,689 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 03:17:25,689 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 03:17:25,689 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 03:17:25,689 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 03:17:25,690 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 03:17:25,690 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 03:17:25,690 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 03:17:25,690 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 03:17:25,690 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 03:17:25,690 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 03:17:25,691 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 03:17:25,691 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 03:17:25,691 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 03:17:25,691 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 03:17:25,691 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 03:17:25,691 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 03:17:25,692 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 03:17:25,692 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 03:17:25,692 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 03:17:25,692 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 03:17:25,692 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 03:17:25,694 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 03:17:25,694 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 03:17:25,694 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 03:17:25,694 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 03:17:25,694 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 03:17:25,694 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-15 03:17:25,695 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-15 03:17:25,695 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-15 03:17:25,695 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptAutoResponder_spec__2 [2019-10-15 03:17:25,695 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 03:17:25,695 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-15 03:17:25,695 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-15 03:17:25,695 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-15 03:17:25,696 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-15 03:17:25,696 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptAutoResponder_spec__1 [2019-10-15 03:17:25,696 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 03:17:25,696 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 03:17:25,696 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 03:17:25,696 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 03:17:25,697 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 03:17:25,697 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 03:17:25,697 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 03:17:25,697 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:17:25,697 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 03:17:25,697 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 03:17:25,698 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 03:17:25,698 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 03:17:25,698 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 03:17:25,698 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 03:17:25,698 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 03:17:25,699 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 03:17:25,699 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 03:17:25,699 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-15 03:17:25,699 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 03:17:25,699 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 03:17:25,699 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 03:17:25,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:17:25,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 03:17:25,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:17:30,684 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:17:30,685 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 03:17:30,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:17:30 BoogieIcfgContainer [2019-10-15 03:17:30,687 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:17:30,688 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:17:30,688 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:17:30,692 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:17:30,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:17:24" (1/3) ... [2019-10-15 03:17:30,693 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12845431 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:17:30, skipping insertion in model container [2019-10-15 03:17:30,693 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:25" (2/3) ... [2019-10-15 03:17:30,694 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12845431 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:17:30, skipping insertion in model container [2019-10-15 03:17:30,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:17:30" (3/3) ... [2019-10-15 03:17:30,696 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec8_product31.cil.c [2019-10-15 03:17:30,707 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:17:30,717 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:17:30,729 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:17:30,760 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:17:30,761 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:17:30,761 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:17:30,761 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:17:30,761 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:17:30,761 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:17:30,762 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:17:30,762 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:17:30,793 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states. [2019-10-15 03:17:30,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2019-10-15 03:17:30,810 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:17:30,812 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:17:30,814 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:17:30,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:17:30,820 INFO L82 PathProgramCache]: Analyzing trace with hash 800009627, now seen corresponding path program 1 times [2019-10-15 03:17:30,831 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:17:30,831 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026664958] [2019-10-15 03:17:30,832 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:30,832 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:30,832 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:17:31,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:17:31,574 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-15 03:17:31,575 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026664958] [2019-10-15 03:17:31,576 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:17:31,576 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 03:17:31,577 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99954994] [2019-10-15 03:17:31,588 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 03:17:31,589 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:17:31,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 03:17:31,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:17:31,606 INFO L87 Difference]: Start difference. First operand 413 states. Second operand 2 states. [2019-10-15 03:17:31,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:17:31,726 INFO L93 Difference]: Finished difference Result 634 states and 750 transitions. [2019-10-15 03:17:31,727 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 03:17:31,728 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 125 [2019-10-15 03:17:31,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:17:31,767 INFO L225 Difference]: With dead ends: 634 [2019-10-15 03:17:31,767 INFO L226 Difference]: Without dead ends: 392 [2019-10-15 03:17:31,779 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:17:31,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2019-10-15 03:17:31,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 392. [2019-10-15 03:17:31,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 392 states. [2019-10-15 03:17:31,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 463 transitions. [2019-10-15 03:17:31,865 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 463 transitions. Word has length 125 [2019-10-15 03:17:31,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:17:31,867 INFO L462 AbstractCegarLoop]: Abstraction has 392 states and 463 transitions. [2019-10-15 03:17:31,867 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 03:17:31,868 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 463 transitions. [2019-10-15 03:17:31,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2019-10-15 03:17:31,873 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:17:31,873 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:17:31,874 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:17:31,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:17:31,874 INFO L82 PathProgramCache]: Analyzing trace with hash -1544480755, now seen corresponding path program 1 times [2019-10-15 03:17:31,875 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:17:31,875 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909466447] [2019-10-15 03:17:31,875 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:31,875 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:31,875 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:17:31,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:17:32,060 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-15 03:17:32,061 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909466447] [2019-10-15 03:17:32,061 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:17:32,061 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:17:32,062 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894924129] [2019-10-15 03:17:32,064 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:17:32,064 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:17:32,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:17:32,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:17:32,065 INFO L87 Difference]: Start difference. First operand 392 states and 463 transitions. Second operand 3 states. [2019-10-15 03:17:32,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:17:32,121 INFO L93 Difference]: Finished difference Result 619 states and 721 transitions. [2019-10-15 03:17:32,122 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:17:32,123 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 126 [2019-10-15 03:17:32,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:17:32,128 INFO L225 Difference]: With dead ends: 619 [2019-10-15 03:17:32,129 INFO L226 Difference]: Without dead ends: 394 [2019-10-15 03:17:32,132 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:17:32,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2019-10-15 03:17:32,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 394. [2019-10-15 03:17:32,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2019-10-15 03:17:32,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 465 transitions. [2019-10-15 03:17:32,193 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 465 transitions. Word has length 126 [2019-10-15 03:17:32,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:17:32,194 INFO L462 AbstractCegarLoop]: Abstraction has 394 states and 465 transitions. [2019-10-15 03:17:32,195 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:17:32,195 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 465 transitions. [2019-10-15 03:17:32,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2019-10-15 03:17:32,203 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:17:32,203 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:17:32,204 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:17:32,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:17:32,204 INFO L82 PathProgramCache]: Analyzing trace with hash 1794060348, now seen corresponding path program 1 times [2019-10-15 03:17:32,204 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:17:32,204 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923926000] [2019-10-15 03:17:32,205 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:32,205 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:32,205 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:17:32,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:17:32,456 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-15 03:17:32,456 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923926000] [2019-10-15 03:17:32,457 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:17:32,457 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:17:32,457 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786806518] [2019-10-15 03:17:32,458 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:17:32,460 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:17:32,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:17:32,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:17:32,461 INFO L87 Difference]: Start difference. First operand 394 states and 465 transitions. Second operand 3 states. [2019-10-15 03:17:32,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:17:32,517 INFO L93 Difference]: Finished difference Result 770 states and 937 transitions. [2019-10-15 03:17:32,518 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:17:32,518 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 131 [2019-10-15 03:17:32,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:17:32,527 INFO L225 Difference]: With dead ends: 770 [2019-10-15 03:17:32,527 INFO L226 Difference]: Without dead ends: 434 [2019-10-15 03:17:32,529 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:17:32,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2019-10-15 03:17:32,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 433. [2019-10-15 03:17:32,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 433 states. [2019-10-15 03:17:32,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 533 transitions. [2019-10-15 03:17:32,562 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 533 transitions. Word has length 131 [2019-10-15 03:17:32,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:17:32,562 INFO L462 AbstractCegarLoop]: Abstraction has 433 states and 533 transitions. [2019-10-15 03:17:32,562 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:17:32,563 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 533 transitions. [2019-10-15 03:17:32,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2019-10-15 03:17:32,568 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:17:32,568 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:17:32,568 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:17:32,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:17:32,569 INFO L82 PathProgramCache]: Analyzing trace with hash 420623112, now seen corresponding path program 1 times [2019-10-15 03:17:32,569 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:17:32,569 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529246434] [2019-10-15 03:17:32,569 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:32,569 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:32,570 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:17:32,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:17:32,775 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-15 03:17:32,776 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529246434] [2019-10-15 03:17:32,776 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:17:32,776 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:17:32,776 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782089403] [2019-10-15 03:17:32,777 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:17:32,777 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:17:32,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:17:32,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:17:32,778 INFO L87 Difference]: Start difference. First operand 433 states and 533 transitions. Second operand 3 states. [2019-10-15 03:17:32,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:17:32,839 INFO L93 Difference]: Finished difference Result 708 states and 849 transitions. [2019-10-15 03:17:32,839 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:17:32,839 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 132 [2019-10-15 03:17:32,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:17:32,846 INFO L225 Difference]: With dead ends: 708 [2019-10-15 03:17:32,846 INFO L226 Difference]: Without dead ends: 484 [2019-10-15 03:17:32,847 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:17:32,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2019-10-15 03:17:32,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 484. [2019-10-15 03:17:32,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 484 states. [2019-10-15 03:17:32,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 583 transitions. [2019-10-15 03:17:32,893 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 583 transitions. Word has length 132 [2019-10-15 03:17:32,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:17:32,894 INFO L462 AbstractCegarLoop]: Abstraction has 484 states and 583 transitions. [2019-10-15 03:17:32,895 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:17:32,895 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 583 transitions. [2019-10-15 03:17:32,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2019-10-15 03:17:32,901 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:17:32,902 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:17:32,903 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:17:32,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:17:32,903 INFO L82 PathProgramCache]: Analyzing trace with hash -145523589, now seen corresponding path program 1 times [2019-10-15 03:17:32,904 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:17:32,904 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16606088] [2019-10-15 03:17:32,905 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:32,905 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:32,905 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:17:33,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:17:33,862 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 20 proven. 1 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-15 03:17:33,862 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16606088] [2019-10-15 03:17:33,863 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [646938654] [2019-10-15 03:17:33,863 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:17:34,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:17:34,557 INFO L256 TraceCheckSpWp]: Trace formula consists of 3347 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-15 03:17:34,600 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:17:34,773 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2019-10-15 03:17:34,774 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:17:35,439 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-15 03:17:35,440 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [73793012] [2019-10-15 03:17:35,473 INFO L162 IcfgInterpreter]: Started Sifa with 195 locations of interest [2019-10-15 03:17:35,473 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 03:17:35,481 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 03:17:35,489 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 03:17:35,490 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs