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_spec6_product32.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:15:57,829 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:15:57,833 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:15:57,851 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:15:57,851 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:15:57,853 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:15:57,856 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:15:57,866 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:15:57,869 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:15:57,870 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:15:57,871 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:15:57,874 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:15:57,874 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:15:57,877 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:15:57,879 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:15:57,881 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:15:57,883 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:15:57,887 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:15:57,888 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:15:57,894 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:15:57,899 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:15:57,900 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:15:57,901 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:15:57,903 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:15:57,907 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 03:15:57,907 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 03:15:57,908 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 03:15:57,910 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 03:15:57,911 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 03:15:57,912 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 03:15:57,913 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:15:57,915 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:15:57,916 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:15:57,916 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:15:57,918 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:15:57,918 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:15:57,919 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:15:57,919 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:15:57,920 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:15:57,922 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:15:57,925 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:15:57,926 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 03:15:57,949 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:15:57,949 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:15:57,953 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:15:57,954 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:15:57,955 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:15:57,955 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:15:57,955 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:15:57,955 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:15:57,956 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:15:57,956 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:15:57,957 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:15:57,957 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:15:57,957 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:15:57,958 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:15:57,958 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:15:57,958 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:15:57,959 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:15:57,959 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:15:57,959 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:15:57,959 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:15:57,959 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:15:57,960 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:15:57,960 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:15:57,960 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:15:57,960 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:15:57,960 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:15:57,961 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:15:57,961 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:15:57,961 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 03:15:58,288 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:15:58,301 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:15:58,305 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:15:58,307 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:15:58,307 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:15:58,308 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec6_product32.cil.c [2019-10-15 03:15:58,370 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50707523d/50dad571d7d64cc783a2e9f8b81b11b4/FLAGff01c6ce9 [2019-10-15 03:15:59,020 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:15:59,021 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec6_product32.cil.c [2019-10-15 03:15:59,042 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50707523d/50dad571d7d64cc783a2e9f8b81b11b4/FLAGff01c6ce9 [2019-10-15 03:15:59,211 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50707523d/50dad571d7d64cc783a2e9f8b81b11b4 [2019-10-15 03:15:59,221 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:15:59,223 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:15:59,223 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:15:59,223 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:15:59,226 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:15:59,227 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:15:59" (1/1) ... [2019-10-15 03:15:59,229 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e54d529 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:59, skipping insertion in model container [2019-10-15 03:15:59,229 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:15:59" (1/1) ... [2019-10-15 03:15:59,236 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:15:59,315 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:16:00,103 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:16:00,126 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:16:00,253 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:16:00,351 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:16:00,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:16:00 WrapperNode [2019-10-15 03:16:00,353 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:16:00,353 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:16:00,354 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:16:00,354 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:16:00,369 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:16:00" (1/1) ... [2019-10-15 03:16:00,369 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:16:00" (1/1) ... [2019-10-15 03:16:00,404 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:16:00" (1/1) ... [2019-10-15 03:16:00,405 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:16:00" (1/1) ... [2019-10-15 03:16:00,465 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:16:00" (1/1) ... [2019-10-15 03:16:00,490 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:16:00" (1/1) ... [2019-10-15 03:16:00,504 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:16:00" (1/1) ... [2019-10-15 03:16:00,542 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:16:00,543 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:16:00,543 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:16:00,543 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:16:00,548 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:16:00" (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 03:16:00,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:16:00,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:16:00,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 03:16:00,633 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 03:16:00,634 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 03:16:00,634 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 03:16:00,634 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 03:16:00,634 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 03:16:00,634 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 03:16:00,635 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 03:16:00,635 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 03:16:00,635 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 03:16:00,635 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 03:16:00,635 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 03:16:00,636 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 03:16:00,636 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 03:16:00,636 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 03:16:00,636 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 03:16:00,636 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 03:16:00,636 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 03:16:00,637 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 03:16:00,638 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 03:16:00,638 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 03:16:00,639 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 03:16:00,639 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 03:16:00,639 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 03:16:00,639 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 03:16:00,639 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 03:16:00,639 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 03:16:00,639 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 03:16:00,639 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 03:16:00,639 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 03:16:00,639 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 03:16:00,640 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 03:16:00,640 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 03:16:00,640 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 03:16:00,640 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 03:16:00,640 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 03:16:00,640 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 03:16:00,640 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 03:16:00,641 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 03:16:00,641 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 03:16:00,641 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 03:16:00,641 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 03:16:00,641 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 03:16:00,641 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 03:16:00,642 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 03:16:00,642 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 03:16:00,642 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 03:16:00,642 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 03:16:00,642 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 03:16:00,642 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 03:16:00,642 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 03:16:00,643 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 03:16:00,643 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 03:16:00,643 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 03:16:00,643 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 03:16:00,643 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 03:16:00,643 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 03:16:00,644 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 03:16:00,644 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 03:16:00,644 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 03:16:00,644 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 03:16:00,644 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 03:16:00,644 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-15 03:16:00,645 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-15 03:16:00,645 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 03:16:00,645 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 03:16:00,645 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-15 03:16:00,645 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-15 03:16:00,645 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-15 03:16:00,645 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 03:16:00,646 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 03:16:00,646 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 03:16:00,646 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 03:16:00,646 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 03:16:00,646 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 03:16:00,647 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 03:16:00,647 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 03:16:00,647 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 03:16:00,647 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-15 03:16:00,647 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-15 03:16:00,647 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-15 03:16:00,647 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-15 03:16:00,648 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 03:16:00,648 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 03:16:00,648 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 03:16:00,648 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 03:16:00,648 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-15 03:16:00,648 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-15 03:16:00,649 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 03:16:00,649 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 03:16:00,649 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 03:16:00,649 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 03:16:00,649 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 03:16:00,649 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 03:16:00,649 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 03:16:00,650 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 03:16:00,650 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 03:16:00,650 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:16:00,650 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 03:16:00,650 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 03:16:00,650 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 03:16:00,650 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 03:16:00,651 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 03:16:00,651 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 03:16:00,651 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 03:16:00,651 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 03:16:00,651 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 03:16:00,651 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-15 03:16:00,652 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-15 03:16:00,652 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 03:16:00,652 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-15 03:16:00,652 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-15 03:16:00,652 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 03:16:00,652 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 03:16:00,652 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 03:16:00,653 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 03:16:00,653 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 03:16:00,653 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:16:00,653 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:16:00,653 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 03:16:00,654 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-15 03:16:00,654 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 03:16:00,654 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 03:16:00,654 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 03:16:00,654 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 03:16:00,654 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-15 03:16:00,654 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 03:16:00,655 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 03:16:00,655 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 03:16:00,655 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 03:16:00,655 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 03:16:00,655 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 03:16:00,655 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 03:16:00,656 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 03:16:00,656 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 03:16:00,656 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 03:16:00,656 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 03:16:00,656 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 03:16:00,656 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 03:16:00,657 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 03:16:00,657 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 03:16:00,657 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 03:16:00,657 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 03:16:00,657 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 03:16:00,657 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 03:16:00,657 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 03:16:00,658 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 03:16:00,658 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 03:16:00,658 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 03:16:00,658 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 03:16:00,658 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 03:16:00,658 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 03:16:00,658 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 03:16:00,659 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 03:16:00,659 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 03:16:00,659 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 03:16:00,659 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 03:16:00,659 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 03:16:00,659 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 03:16:00,660 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 03:16:00,660 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 03:16:00,660 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 03:16:00,660 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 03:16:00,660 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 03:16:00,661 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 03:16:00,661 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 03:16:00,661 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 03:16:00,661 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 03:16:00,661 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 03:16:00,661 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 03:16:00,661 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 03:16:00,662 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 03:16:00,662 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 03:16:00,662 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 03:16:00,662 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 03:16:00,662 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 03:16:00,662 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 03:16:00,663 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 03:16:00,663 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 03:16:00,663 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 03:16:00,663 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 03:16:00,663 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 03:16:00,663 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 03:16:00,664 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 03:16:00,664 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 03:16:00,664 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 03:16:00,664 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 03:16:00,664 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 03:16:00,665 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 03:16:00,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 03:16:00,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 03:16:00,665 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 03:16:00,665 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 03:16:00,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 03:16:00,666 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 03:16:00,666 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 03:16:00,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 03:16:00,666 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 03:16:00,666 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 03:16:00,666 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 03:16:00,667 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 03:16:00,667 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 03:16:00,667 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 03:16:00,667 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 03:16:00,667 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 03:16:00,667 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 03:16:00,668 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 03:16:00,668 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 03:16:00,668 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 03:16:00,668 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 03:16:00,668 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 03:16:00,669 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 03:16:00,669 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 03:16:00,669 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 03:16:00,669 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 03:16:00,669 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-15 03:16:00,669 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-15 03:16:00,670 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-15 03:16:00,670 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-15 03:16:00,670 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-15 03:16:00,670 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 03:16:00,670 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-15 03:16:00,670 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-15 03:16:00,671 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-15 03:16:00,671 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-15 03:16:00,671 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-15 03:16:00,671 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-15 03:16:00,671 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 03:16:00,671 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 03:16:00,672 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 03:16:00,672 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 03:16:00,672 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 03:16:00,672 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 03:16:00,672 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 03:16:00,673 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 03:16:00,673 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 03:16:00,673 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:16:00,673 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 03:16:00,673 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 03:16:00,673 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 03:16:00,674 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 03:16:00,674 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 03:16:00,674 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 03:16:00,674 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 03:16:00,674 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 03:16:00,674 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-15 03:16:00,675 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-15 03:16:00,675 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 03:16:00,675 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:16:00,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 03:16:00,675 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:16:05,887 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:16:05,887 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 03:16:05,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:16:05 BoogieIcfgContainer [2019-10-15 03:16:05,893 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:16:05,894 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:16:05,894 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:16:05,899 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:16:05,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:15:59" (1/3) ... [2019-10-15 03:16:05,901 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5242048 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:16:05, skipping insertion in model container [2019-10-15 03:16:05,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:16:00" (2/3) ... [2019-10-15 03:16:05,905 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5242048 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:16:05, skipping insertion in model container [2019-10-15 03:16:05,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:16:05" (3/3) ... [2019-10-15 03:16:05,912 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec6_product32.cil.c [2019-10-15 03:16:05,926 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:16:05,940 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:16:05,953 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:16:05,998 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:16:05,998 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:16:05,998 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:16:06,006 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:16:06,007 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:16:06,007 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:16:06,007 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:16:06,007 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:16:06,047 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states. [2019-10-15 03:16:06,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2019-10-15 03:16:06,065 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:16:06,066 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-15 03:16:06,068 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:16:06,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:16:06,074 INFO L82 PathProgramCache]: Analyzing trace with hash 2047346776, now seen corresponding path program 1 times [2019-10-15 03:16:06,084 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:16:06,084 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242178106] [2019-10-15 03:16:06,085 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:06,085 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:06,085 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:16:06,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:16:06,739 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 03:16:06,740 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242178106] [2019-10-15 03:16:06,741 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:16:06,741 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 03:16:06,742 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652498474] [2019-10-15 03:16:06,749 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 03:16:06,749 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:16:06,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 03:16:06,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:16:06,767 INFO L87 Difference]: Start difference. First operand 451 states. Second operand 2 states. [2019-10-15 03:16:06,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:16:06,887 INFO L93 Difference]: Finished difference Result 642 states and 769 transitions. [2019-10-15 03:16:06,888 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 03:16:06,889 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 154 [2019-10-15 03:16:06,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:16:06,928 INFO L225 Difference]: With dead ends: 642 [2019-10-15 03:16:06,928 INFO L226 Difference]: Without dead ends: 403 [2019-10-15 03:16:06,944 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 03:16:06,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2019-10-15 03:16:07,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 403. [2019-10-15 03:16:07,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 403 states. [2019-10-15 03:16:07,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 478 transitions. [2019-10-15 03:16:07,060 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 478 transitions. Word has length 154 [2019-10-15 03:16:07,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:16:07,062 INFO L462 AbstractCegarLoop]: Abstraction has 403 states and 478 transitions. [2019-10-15 03:16:07,062 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 03:16:07,062 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 478 transitions. [2019-10-15 03:16:07,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2019-10-15 03:16:07,069 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:16:07,069 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-15 03:16:07,069 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:16:07,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:16:07,070 INFO L82 PathProgramCache]: Analyzing trace with hash -1986785659, now seen corresponding path program 1 times [2019-10-15 03:16:07,070 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:16:07,070 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237096624] [2019-10-15 03:16:07,071 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:07,071 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:07,071 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:16:07,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:16:07,449 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 03:16:07,449 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237096624] [2019-10-15 03:16:07,450 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:16:07,450 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:16:07,450 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970920271] [2019-10-15 03:16:07,453 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:16:07,454 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:16:07,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:16:07,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:16:07,455 INFO L87 Difference]: Start difference. First operand 403 states and 478 transitions. Second operand 3 states. [2019-10-15 03:16:07,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:16:07,516 INFO L93 Difference]: Finished difference Result 627 states and 736 transitions. [2019-10-15 03:16:07,516 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:16:07,517 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 155 [2019-10-15 03:16:07,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:16:07,523 INFO L225 Difference]: With dead ends: 627 [2019-10-15 03:16:07,523 INFO L226 Difference]: Without dead ends: 405 [2019-10-15 03:16:07,525 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 03:16:07,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2019-10-15 03:16:07,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 405. [2019-10-15 03:16:07,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 405 states. [2019-10-15 03:16:07,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 480 transitions. [2019-10-15 03:16:07,558 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 480 transitions. Word has length 155 [2019-10-15 03:16:07,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:16:07,559 INFO L462 AbstractCegarLoop]: Abstraction has 405 states and 480 transitions. [2019-10-15 03:16:07,559 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:16:07,559 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 480 transitions. [2019-10-15 03:16:07,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2019-10-15 03:16:07,563 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:16:07,564 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-15 03:16:07,564 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:16:07,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:16:07,564 INFO L82 PathProgramCache]: Analyzing trace with hash -652679702, now seen corresponding path program 1 times [2019-10-15 03:16:07,565 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:16:07,565 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296981696] [2019-10-15 03:16:07,565 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:07,565 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:07,565 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:16:07,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:16:07,774 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 03:16:07,774 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296981696] [2019-10-15 03:16:07,774 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:16:07,775 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:16:07,775 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570002407] [2019-10-15 03:16:07,775 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:16:07,776 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:16:07,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:16:07,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:16:07,776 INFO L87 Difference]: Start difference. First operand 405 states and 480 transitions. Second operand 3 states. [2019-10-15 03:16:07,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:16:07,813 INFO L93 Difference]: Finished difference Result 794 states and 970 transitions. [2019-10-15 03:16:07,813 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:16:07,813 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 164 [2019-10-15 03:16:07,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:16:07,817 INFO L225 Difference]: With dead ends: 794 [2019-10-15 03:16:07,817 INFO L226 Difference]: Without dead ends: 447 [2019-10-15 03:16:07,819 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 03:16:07,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2019-10-15 03:16:07,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 446. [2019-10-15 03:16:07,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 446 states. [2019-10-15 03:16:07,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 551 transitions. [2019-10-15 03:16:07,846 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 551 transitions. Word has length 164 [2019-10-15 03:16:07,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:16:07,847 INFO L462 AbstractCegarLoop]: Abstraction has 446 states and 551 transitions. [2019-10-15 03:16:07,847 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:16:07,847 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 551 transitions. [2019-10-15 03:16:07,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2019-10-15 03:16:07,851 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:16:07,851 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-15 03:16:07,851 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:16:07,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:16:07,852 INFO L82 PathProgramCache]: Analyzing trace with hash -586369187, now seen corresponding path program 1 times [2019-10-15 03:16:07,852 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:16:07,852 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444195402] [2019-10-15 03:16:07,853 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:07,853 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:07,853 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:16:07,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:16:08,061 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 03:16:08,062 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444195402] [2019-10-15 03:16:08,062 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:16:08,063 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:16:08,063 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947614144] [2019-10-15 03:16:08,064 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:16:08,064 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:16:08,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:16:08,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:16:08,065 INFO L87 Difference]: Start difference. First operand 446 states and 551 transitions. Second operand 3 states. [2019-10-15 03:16:08,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:16:08,123 INFO L93 Difference]: Finished difference Result 914 states and 1178 transitions. [2019-10-15 03:16:08,124 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:16:08,124 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 165 [2019-10-15 03:16:08,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:16:08,132 INFO L225 Difference]: With dead ends: 914 [2019-10-15 03:16:08,132 INFO L226 Difference]: Without dead ends: 526 [2019-10-15 03:16:08,135 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 03:16:08,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2019-10-15 03:16:08,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 525. [2019-10-15 03:16:08,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 525 states. [2019-10-15 03:16:08,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 687 transitions. [2019-10-15 03:16:08,192 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 687 transitions. Word has length 165 [2019-10-15 03:16:08,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:16:08,193 INFO L462 AbstractCegarLoop]: Abstraction has 525 states and 687 transitions. [2019-10-15 03:16:08,193 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:16:08,193 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 687 transitions. [2019-10-15 03:16:08,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2019-10-15 03:16:08,200 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:16:08,201 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-15 03:16:08,201 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:16:08,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:16:08,202 INFO L82 PathProgramCache]: Analyzing trace with hash 375382896, now seen corresponding path program 1 times [2019-10-15 03:16:08,202 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:16:08,203 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269818636] [2019-10-15 03:16:08,203 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:08,203 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:08,204 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:16:08,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:16:09,011 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-15 03:16:09,012 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269818636] [2019-10-15 03:16:09,012 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:16:09,012 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2019-10-15 03:16:09,012 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475320738] [2019-10-15 03:16:09,013 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-10-15 03:16:09,014 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:16:09,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-10-15 03:16:09,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=584, Unknown=0, NotChecked=0, Total=650 [2019-10-15 03:16:09,015 INFO L87 Difference]: Start difference. First operand 525 states and 687 transitions. Second operand 26 states. [2019-10-15 03:16:19,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:16:19,111 INFO L93 Difference]: Finished difference Result 1329 states and 1679 transitions. [2019-10-15 03:16:19,113 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2019-10-15 03:16:19,113 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 168 [2019-10-15 03:16:19,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:16:19,121 INFO L225 Difference]: With dead ends: 1329 [2019-10-15 03:16:19,122 INFO L226 Difference]: Without dead ends: 1111 [2019-10-15 03:16:19,124 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 620 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=294, Invalid=2898, Unknown=0, NotChecked=0, Total=3192 [2019-10-15 03:16:19,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1111 states. [2019-10-15 03:16:19,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1111 to 1098. [2019-10-15 03:16:19,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1098 states. [2019-10-15 03:16:19,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1098 states to 1098 states and 1375 transitions. [2019-10-15 03:16:19,188 INFO L78 Accepts]: Start accepts. Automaton has 1098 states and 1375 transitions. Word has length 168 [2019-10-15 03:16:19,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:16:19,189 INFO L462 AbstractCegarLoop]: Abstraction has 1098 states and 1375 transitions. [2019-10-15 03:16:19,189 INFO L463 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-10-15 03:16:19,190 INFO L276 IsEmpty]: Start isEmpty. Operand 1098 states and 1375 transitions. [2019-10-15 03:16:19,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2019-10-15 03:16:19,193 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:16:19,194 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-15 03:16:19,194 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:16:19,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:16:19,195 INFO L82 PathProgramCache]: Analyzing trace with hash -226636973, now seen corresponding path program 1 times [2019-10-15 03:16:19,195 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:16:19,195 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921867139] [2019-10-15 03:16:19,195 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:19,195 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:19,196 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:16:19,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:16:19,619 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-15 03:16:19,620 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921867139] [2019-10-15 03:16:19,621 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:16:19,621 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2019-10-15 03:16:19,621 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797848118] [2019-10-15 03:16:19,622 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-15 03:16:19,622 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:16:19,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-15 03:16:19,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2019-10-15 03:16:19,623 INFO L87 Difference]: Start difference. First operand 1098 states and 1375 transitions. Second operand 16 states. [2019-10-15 03:16:25,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:16:25,724 INFO L93 Difference]: Finished difference Result 2466 states and 3062 transitions. [2019-10-15 03:16:25,725 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-10-15 03:16:25,725 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 174 [2019-10-15 03:16:25,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:16:25,786 INFO L225 Difference]: With dead ends: 2466 [2019-10-15 03:16:25,786 INFO L226 Difference]: Without dead ends: 2059 [2019-10-15 03:16:25,790 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=139, Invalid=731, Unknown=0, NotChecked=0, Total=870 [2019-10-15 03:16:25,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2059 states. [2019-10-15 03:16:25,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2059 to 2006. [2019-10-15 03:16:25,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2006 states. [2019-10-15 03:16:25,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2006 states to 2006 states and 2487 transitions. [2019-10-15 03:16:25,966 INFO L78 Accepts]: Start accepts. Automaton has 2006 states and 2487 transitions. Word has length 174 [2019-10-15 03:16:25,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:16:25,969 INFO L462 AbstractCegarLoop]: Abstraction has 2006 states and 2487 transitions. [2019-10-15 03:16:25,969 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-10-15 03:16:25,969 INFO L276 IsEmpty]: Start isEmpty. Operand 2006 states and 2487 transitions. [2019-10-15 03:16:25,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2019-10-15 03:16:25,977 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:16:25,977 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:16:25,978 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:16:25,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:16:25,978 INFO L82 PathProgramCache]: Analyzing trace with hash 1042031934, now seen corresponding path program 1 times [2019-10-15 03:16:25,979 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:16:25,979 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737441410] [2019-10-15 03:16:25,979 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:25,979 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:25,980 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:16:26,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:16:26,236 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 03:16:26,237 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737441410] [2019-10-15 03:16:26,237 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:16:26,237 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:16:26,238 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302173273] [2019-10-15 03:16:26,238 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:16:26,239 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:16:26,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:16:26,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:16:26,240 INFO L87 Difference]: Start difference. First operand 2006 states and 2487 transitions. Second operand 3 states. [2019-10-15 03:16:26,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:16:26,382 INFO L93 Difference]: Finished difference Result 4167 states and 5283 transitions. [2019-10-15 03:16:26,383 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:16:26,383 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 190 [2019-10-15 03:16:26,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:16:26,403 INFO L225 Difference]: With dead ends: 4167 [2019-10-15 03:16:26,403 INFO L226 Difference]: Without dead ends: 2219 [2019-10-15 03:16:26,411 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 03:16:26,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2219 states. [2019-10-15 03:16:26,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2219 to 2217. [2019-10-15 03:16:26,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2217 states. [2019-10-15 03:16:26,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2217 states to 2217 states and 2851 transitions. [2019-10-15 03:16:26,606 INFO L78 Accepts]: Start accepts. Automaton has 2217 states and 2851 transitions. Word has length 190 [2019-10-15 03:16:26,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:16:26,607 INFO L462 AbstractCegarLoop]: Abstraction has 2217 states and 2851 transitions. [2019-10-15 03:16:26,607 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:16:26,607 INFO L276 IsEmpty]: Start isEmpty. Operand 2217 states and 2851 transitions. [2019-10-15 03:16:26,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2019-10-15 03:16:26,617 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:16:26,618 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:16:26,618 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:16:26,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:16:26,619 INFO L82 PathProgramCache]: Analyzing trace with hash -1904967631, now seen corresponding path program 1 times [2019-10-15 03:16:26,620 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:16:26,620 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921710734] [2019-10-15 03:16:26,620 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:26,621 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:26,621 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:16:26,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:16:27,180 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-10-15 03:16:27,181 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921710734] [2019-10-15 03:16:27,181 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:16:27,181 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2019-10-15 03:16:27,181 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922044440] [2019-10-15 03:16:27,183 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-10-15 03:16:27,183 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:16:27,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-10-15 03:16:27,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=238, Unknown=0, NotChecked=0, Total=272 [2019-10-15 03:16:27,184 INFO L87 Difference]: Start difference. First operand 2217 states and 2851 transitions. Second operand 17 states.