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_spec9_product32.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 15:13:28,479 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 15:13:28,482 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 15:13:28,501 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 15:13:28,502 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 15:13:28,505 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 15:13:28,507 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 15:13:28,517 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 15:13:28,522 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 15:13:28,526 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 15:13:28,527 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 15:13:28,528 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 15:13:28,528 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 15:13:28,530 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 15:13:28,533 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 15:13:28,534 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 15:13:28,535 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 15:13:28,536 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 15:13:28,538 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 15:13:28,543 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 15:13:28,547 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 15:13:28,550 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 15:13:28,553 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 15:13:28,554 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 15:13:28,556 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 15:13:28,556 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 15:13:28,556 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 15:13:28,558 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 15:13:28,559 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 15:13:28,560 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 15:13:28,560 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 15:13:28,561 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 15:13:28,562 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 15:13:28,563 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 15:13:28,564 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 15:13:28,565 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 15:13:28,565 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 15:13:28,566 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 15:13:28,566 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 15:13:28,567 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 15:13:28,568 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 15:13:28,569 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 [2019-10-07 15:13:28,603 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 15:13:28,603 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 15:13:28,604 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 15:13:28,604 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 15:13:28,605 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 15:13:28,605 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 15:13:28,610 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 15:13:28,610 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 15:13:28,611 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 15:13:28,611 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 15:13:28,611 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 15:13:28,611 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 15:13:28,612 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 15:13:28,612 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 15:13:28,612 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 15:13:28,612 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 15:13:28,612 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 15:13:28,613 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 15:13:28,613 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 15:13:28,614 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 15:13:28,614 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 15:13:28,615 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 15:13:28,615 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 15:13:28,615 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 15:13:28,615 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 15:13:28,615 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 15:13:28,616 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 15:13:28,616 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 15:13:28,616 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 [2019-10-07 15:13:28,918 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 15:13:28,931 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 15:13:28,935 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 15:13:28,936 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 15:13:28,937 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 15:13:28,938 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec9_product32.cil.c [2019-10-07 15:13:29,015 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9741d754/2973a8c8791d498d9c960c81f95045f6/FLAG758e1662a [2019-10-07 15:13:29,672 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 15:13:29,673 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec9_product32.cil.c [2019-10-07 15:13:29,706 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9741d754/2973a8c8791d498d9c960c81f95045f6/FLAG758e1662a [2019-10-07 15:13:29,873 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9741d754/2973a8c8791d498d9c960c81f95045f6 [2019-10-07 15:13:29,884 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 15:13:29,885 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 15:13:29,886 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 15:13:29,887 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 15:13:29,892 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 15:13:29,893 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:13:29" (1/1) ... [2019-10-07 15:13:29,896 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8962239 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:13:29, skipping insertion in model container [2019-10-07 15:13:29,896 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:13:29" (1/1) ... [2019-10-07 15:13:29,904 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 15:13:29,975 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 15:13:30,755 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:13:30,773 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 15:13:30,880 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:13:30,971 INFO L192 MainTranslator]: Completed translation [2019-10-07 15:13:30,972 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:13:30 WrapperNode [2019-10-07 15:13:30,972 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 15:13:30,973 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 15:13:30,973 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 15:13:30,973 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 15:13:30,990 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:13:30" (1/1) ... [2019-10-07 15:13:30,990 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:13:30" (1/1) ... [2019-10-07 15:13:31,062 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:13:30" (1/1) ... [2019-10-07 15:13:31,063 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:13:30" (1/1) ... [2019-10-07 15:13:31,137 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:13:30" (1/1) ... [2019-10-07 15:13:31,157 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:13:30" (1/1) ... [2019-10-07 15:13:31,170 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:13:30" (1/1) ... [2019-10-07 15:13:31,208 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 15:13:31,210 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 15:13:31,210 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 15:13:31,210 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 15:13:31,212 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:13:30" (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 [2019-10-07 15:13:31,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 15:13:31,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 15:13:31,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 15:13:31,276 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-07 15:13:31,276 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-07 15:13:31,277 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-07 15:13:31,277 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-07 15:13:31,277 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-07 15:13:31,277 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-07 15:13:31,277 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-07 15:13:31,278 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-07 15:13:31,278 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 15:13:31,278 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-07 15:13:31,278 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-07 15:13:31,279 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-07 15:13:31,279 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-07 15:13:31,279 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-07 15:13:31,279 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-07 15:13:31,279 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-07 15:13:31,280 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-07 15:13:31,280 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-07 15:13:31,283 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-07 15:13:31,283 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-07 15:13:31,284 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-07 15:13:31,284 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-07 15:13:31,286 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-07 15:13:31,286 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-07 15:13:31,286 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-07 15:13:31,286 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-07 15:13:31,287 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-07 15:13:31,287 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-07 15:13:31,287 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-07 15:13:31,287 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-07 15:13:31,287 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-07 15:13:31,287 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-07 15:13:31,287 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-07 15:13:31,288 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-07 15:13:31,288 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-07 15:13:31,288 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-07 15:13:31,288 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-07 15:13:31,288 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-07 15:13:31,288 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-07 15:13:31,288 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-07 15:13:31,288 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-07 15:13:31,289 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-07 15:13:31,289 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-07 15:13:31,289 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-07 15:13:31,289 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-07 15:13:31,289 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-07 15:13:31,289 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-07 15:13:31,289 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-07 15:13:31,289 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-07 15:13:31,290 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-07 15:13:31,290 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-07 15:13:31,290 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-07 15:13:31,290 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-07 15:13:31,290 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-07 15:13:31,290 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-07 15:13:31,291 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-07 15:13:31,291 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-07 15:13:31,291 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-07 15:13:31,291 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-07 15:13:31,291 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-07 15:13:31,291 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-07 15:13:31,292 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-07 15:13:31,292 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-07 15:13:31,292 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-07 15:13:31,292 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-07 15:13:31,292 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-07 15:13:31,292 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-07 15:13:31,292 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-07 15:13:31,293 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-07 15:13:31,293 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-07 15:13:31,293 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-07 15:13:31,293 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-07 15:13:31,293 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-07 15:13:31,293 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-07 15:13:31,294 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-07 15:13:31,294 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-07 15:13:31,294 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-07 15:13:31,294 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-07 15:13:31,294 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-07 15:13:31,294 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-07 15:13:31,295 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-07 15:13:31,295 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-07 15:13:31,295 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 15:13:31,295 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 15:13:31,295 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 15:13:31,295 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 15:13:31,296 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 15:13:31,296 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptForward_spec__1 [2019-10-07 15:13:31,296 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptForward_spec__2 [2019-10-07 15:13:31,296 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 15:13:31,296 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 15:13:31,296 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 15:13:31,297 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 15:13:31,297 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 15:13:31,297 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 15:13:31,297 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-07 15:13:31,297 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-07 15:13:31,297 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-07 15:13:31,297 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-07 15:13:31,298 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-07 15:13:31,298 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-07 15:13:31,298 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-07 15:13:31,298 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-07 15:13:31,298 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 15:13:31,298 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 15:13:31,298 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-07 15:13:31,299 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-07 15:13:31,299 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-07 15:13:31,299 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-07 15:13:31,299 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-07 15:13:31,299 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-07 15:13:31,299 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-07 15:13:31,299 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-07 15:13:31,300 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-07 15:13:31,300 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-07 15:13:31,300 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-07 15:13:31,300 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 15:13:31,300 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 15:13:31,300 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 15:13:31,301 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-07 15:13:31,301 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-07 15:13:31,301 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-07 15:13:31,301 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-07 15:13:31,301 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-07 15:13:31,301 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-07 15:13:31,302 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-07 15:13:31,302 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-07 15:13:31,302 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-07 15:13:31,302 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-07 15:13:31,302 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-07 15:13:31,302 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-07 15:13:31,303 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-07 15:13:31,303 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-07 15:13:31,303 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-07 15:13:31,303 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 15:13:31,303 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-07 15:13:31,303 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-07 15:13:31,304 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-07 15:13:31,304 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-07 15:13:31,304 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-07 15:13:31,304 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-07 15:13:31,304 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-07 15:13:31,304 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-07 15:13:31,304 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-07 15:13:31,305 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-07 15:13:31,305 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-07 15:13:31,305 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-07 15:13:31,305 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-07 15:13:31,305 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 15:13:31,305 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-07 15:13:31,305 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-07 15:13:31,306 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-07 15:13:31,306 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-07 15:13:31,306 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-07 15:13:31,306 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-07 15:13:31,306 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-07 15:13:31,306 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-07 15:13:31,307 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-07 15:13:31,307 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-07 15:13:31,307 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-07 15:13:31,307 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-07 15:13:31,307 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-07 15:13:31,307 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-07 15:13:31,307 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-07 15:13:31,308 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-07 15:13:31,308 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-07 15:13:31,308 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-07 15:13:31,308 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-07 15:13:31,308 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-07 15:13:31,308 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-07 15:13:31,309 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-07 15:13:31,309 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-07 15:13:31,309 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-07 15:13:31,309 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-07 15:13:31,309 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-07 15:13:31,309 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-07 15:13:31,309 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-07 15:13:31,309 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-07 15:13:31,310 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-07 15:13:31,310 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptForward_spec__2 [2019-10-07 15:13:31,310 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-07 15:13:31,310 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-07 15:13:31,310 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-07 15:13:31,310 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-07 15:13:31,310 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-07 15:13:31,311 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-07 15:13:31,311 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptForward_spec__1 [2019-10-07 15:13:31,311 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-07 15:13:31,311 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-07 15:13:31,311 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-07 15:13:31,311 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-07 15:13:31,311 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-07 15:13:31,312 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-07 15:13:31,312 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-07 15:13:31,312 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-07 15:13:31,312 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-07 15:13:31,312 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-07 15:13:31,312 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-07 15:13:31,312 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-07 15:13:31,313 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-07 15:13:31,313 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-07 15:13:31,313 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-07 15:13:31,313 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-07 15:13:31,313 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-07 15:13:31,313 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-07 15:13:31,313 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-07 15:13:31,314 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-07 15:13:31,314 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-07 15:13:31,314 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-07 15:13:31,314 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-07 15:13:31,314 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-07 15:13:31,314 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-07 15:13:31,315 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-07 15:13:31,315 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-07 15:13:31,315 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-07 15:13:31,315 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 15:13:31,315 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 15:13:31,315 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 15:13:31,316 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 15:13:31,316 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 15:13:31,316 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 15:13:31,316 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 15:13:31,316 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 15:13:31,316 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 15:13:31,317 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 15:13:31,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 15:13:31,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 15:13:31,317 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 15:13:31,317 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 15:13:31,317 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 15:13:31,318 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 15:13:31,318 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 15:13:31,318 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 15:13:31,318 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 15:13:31,318 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 15:13:31,318 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 15:13:31,319 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-07 15:13:31,319 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-07 15:13:31,319 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-07 15:13:31,319 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-07 15:13:31,319 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 15:13:31,319 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 15:13:31,320 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-07 15:13:31,320 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-07 15:13:31,320 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-07 15:13:31,320 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-07 15:13:31,320 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-07 15:13:31,320 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 15:13:31,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 15:13:31,321 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 15:13:36,087 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 15:13:36,088 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-07 15:13:36,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:13:36 BoogieIcfgContainer [2019-10-07 15:13:36,090 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 15:13:36,091 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 15:13:36,091 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 15:13:36,095 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 15:13:36,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 03:13:29" (1/3) ... [2019-10-07 15:13:36,096 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ece9af6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:13:36, skipping insertion in model container [2019-10-07 15:13:36,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:13:30" (2/3) ... [2019-10-07 15:13:36,096 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ece9af6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:13:36, skipping insertion in model container [2019-10-07 15:13:36,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:13:36" (3/3) ... [2019-10-07 15:13:36,098 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec9_product32.cil.c [2019-10-07 15:13:36,109 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 15:13:36,119 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 15:13:36,131 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 15:13:36,162 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 15:13:36,162 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 15:13:36,162 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 15:13:36,162 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 15:13:36,162 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 15:13:36,163 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 15:13:36,163 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 15:13:36,163 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 15:13:36,195 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states. [2019-10-07 15:13:36,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2019-10-07 15:13:36,213 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:13:36,215 INFO L385 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, 1, 1, 1, 1, 1, 1] [2019-10-07 15:13:36,217 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:13:36,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:13:36,224 INFO L82 PathProgramCache]: Analyzing trace with hash 1585890697, now seen corresponding path program 1 times [2019-10-07 15:13:36,234 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:13:36,234 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:13:36,235 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:13:36,235 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:13:36,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:13:36,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:13:36,937 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 15:13:36,938 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:13:36,939 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:13:36,939 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 15:13:36,943 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 15:13:36,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 15:13:36,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 15:13:36,961 INFO L87 Difference]: Start difference. First operand 447 states. Second operand 2 states. [2019-10-07 15:13:37,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:13:37,063 INFO L93 Difference]: Finished difference Result 634 states and 756 transitions. [2019-10-07 15:13:37,064 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 15:13:37,065 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 132 [2019-10-07 15:13:37,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:13:37,086 INFO L225 Difference]: With dead ends: 634 [2019-10-07 15:13:37,086 INFO L226 Difference]: Without dead ends: 399 [2019-10-07 15:13:37,096 INFO L606 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 [2019-10-07 15:13:37,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2019-10-07 15:13:37,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 399. [2019-10-07 15:13:37,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 399 states. [2019-10-07 15:13:37,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 472 transitions. [2019-10-07 15:13:37,199 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 472 transitions. Word has length 132 [2019-10-07 15:13:37,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:13:37,201 INFO L462 AbstractCegarLoop]: Abstraction has 399 states and 472 transitions. [2019-10-07 15:13:37,201 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 15:13:37,202 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 472 transitions. [2019-10-07 15:13:37,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2019-10-07 15:13:37,208 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:13:37,208 INFO L385 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, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:13:37,209 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:13:37,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:13:37,209 INFO L82 PathProgramCache]: Analyzing trace with hash 1241260819, now seen corresponding path program 1 times [2019-10-07 15:13:37,210 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:13:37,210 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:13:37,210 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:13:37,210 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:13:37,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:13:37,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:13:37,494 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 15:13:37,494 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:13:37,495 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:13:37,495 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:13:37,497 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:13:37,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:13:37,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:13:37,498 INFO L87 Difference]: Start difference. First operand 399 states and 472 transitions. Second operand 3 states. [2019-10-07 15:13:37,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:13:37,561 INFO L93 Difference]: Finished difference Result 619 states and 724 transitions. [2019-10-07 15:13:37,561 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:13:37,562 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 133 [2019-10-07 15:13:37,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:13:37,573 INFO L225 Difference]: With dead ends: 619 [2019-10-07 15:13:37,574 INFO L226 Difference]: Without dead ends: 401 [2019-10-07 15:13:37,580 INFO L606 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 [2019-10-07 15:13:37,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2019-10-07 15:13:37,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 401. [2019-10-07 15:13:37,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 401 states. [2019-10-07 15:13:37,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 474 transitions. [2019-10-07 15:13:37,625 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 474 transitions. Word has length 133 [2019-10-07 15:13:37,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:13:37,625 INFO L462 AbstractCegarLoop]: Abstraction has 401 states and 474 transitions. [2019-10-07 15:13:37,625 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:13:37,626 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 474 transitions. [2019-10-07 15:13:37,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2019-10-07 15:13:37,633 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:13:37,633 INFO L385 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:13:37,634 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:13:37,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:13:37,634 INFO L82 PathProgramCache]: Analyzing trace with hash 349190620, now seen corresponding path program 1 times [2019-10-07 15:13:37,634 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:13:37,634 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:13:37,635 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:13:37,635 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:13:37,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:13:37,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:13:37,889 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 15:13:37,890 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:13:37,890 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:13:37,890 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:13:37,891 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:13:37,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:13:37,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:13:37,892 INFO L87 Difference]: Start difference. First operand 401 states and 474 transitions. Second operand 3 states. [2019-10-07 15:13:37,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:13:37,948 INFO L93 Difference]: Finished difference Result 786 states and 958 transitions. [2019-10-07 15:13:37,948 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:13:37,949 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2019-10-07 15:13:37,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:13:37,959 INFO L225 Difference]: With dead ends: 786 [2019-10-07 15:13:37,959 INFO L226 Difference]: Without dead ends: 443 [2019-10-07 15:13:37,962 INFO L606 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 [2019-10-07 15:13:37,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2019-10-07 15:13:38,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 442. [2019-10-07 15:13:38,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 442 states. [2019-10-07 15:13:38,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 545 transitions. [2019-10-07 15:13:38,016 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 545 transitions. Word has length 142 [2019-10-07 15:13:38,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:13:38,018 INFO L462 AbstractCegarLoop]: Abstraction has 442 states and 545 transitions. [2019-10-07 15:13:38,018 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:13:38,018 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 545 transitions. [2019-10-07 15:13:38,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2019-10-07 15:13:38,030 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:13:38,031 INFO L385 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:13:38,031 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:13:38,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:13:38,033 INFO L82 PathProgramCache]: Analyzing trace with hash -1493521094, now seen corresponding path program 1 times [2019-10-07 15:13:38,033 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:13:38,033 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:13:38,034 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:13:38,034 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:13:38,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:13:38,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:13:38,318 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 15:13:38,318 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:13:38,319 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:13:38,319 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:13:38,321 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:13:38,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:13:38,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:13:38,322 INFO L87 Difference]: Start difference. First operand 442 states and 545 transitions. Second operand 3 states. [2019-10-07 15:13:38,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:13:38,376 INFO L93 Difference]: Finished difference Result 906 states and 1166 transitions. [2019-10-07 15:13:38,377 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:13:38,377 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 143 [2019-10-07 15:13:38,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:13:38,384 INFO L225 Difference]: With dead ends: 906 [2019-10-07 15:13:38,384 INFO L226 Difference]: Without dead ends: 522 [2019-10-07 15:13:38,387 INFO L606 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 [2019-10-07 15:13:38,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2019-10-07 15:13:38,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 521. [2019-10-07 15:13:38,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 521 states. [2019-10-07 15:13:38,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 681 transitions. [2019-10-07 15:13:38,423 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 681 transitions. Word has length 143 [2019-10-07 15:13:38,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:13:38,424 INFO L462 AbstractCegarLoop]: Abstraction has 521 states and 681 transitions. [2019-10-07 15:13:38,424 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:13:38,424 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 681 transitions. [2019-10-07 15:13:38,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2019-10-07 15:13:38,429 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:13:38,430 INFO L385 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:13:38,430 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:13:38,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:13:38,431 INFO L82 PathProgramCache]: Analyzing trace with hash -1234658247, now seen corresponding path program 1 times [2019-10-07 15:13:38,431 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:13:38,431 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:13:38,431 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:13:38,431 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:13:38,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:13:38,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:13:38,706 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 15:13:38,707 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:13:38,707 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:13:38,707 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:13:38,708 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:13:38,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:13:38,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:13:38,708 INFO L87 Difference]: Start difference. First operand 521 states and 681 transitions. Second operand 3 states. [2019-10-07 15:13:38,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:13:38,747 INFO L93 Difference]: Finished difference Result 808 states and 1017 transitions. [2019-10-07 15:13:38,747 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:13:38,747 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 146 [2019-10-07 15:13:38,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:13:38,752 INFO L225 Difference]: With dead ends: 808 [2019-10-07 15:13:38,752 INFO L226 Difference]: Without dead ends: 602 [2019-10-07 15:13:38,754 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:13:38,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2019-10-07 15:13:38,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 601. [2019-10-07 15:13:38,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 601 states. [2019-10-07 15:13:38,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 772 transitions. [2019-10-07 15:13:38,788 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 772 transitions. Word has length 146 [2019-10-07 15:13:38,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:13:38,789 INFO L462 AbstractCegarLoop]: Abstraction has 601 states and 772 transitions. [2019-10-07 15:13:38,790 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:13:38,790 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 772 transitions. [2019-10-07 15:13:38,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2019-10-07 15:13:38,796 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:13:38,796 INFO L385 BasicCegarLoop]: trace histogram [4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:13:38,797 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:13:38,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:13:38,797 INFO L82 PathProgramCache]: Analyzing trace with hash -1845528470, now seen corresponding path program 1 times [2019-10-07 15:13:38,797 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:13:38,798 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:13:38,798 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:13:38,798 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:13:38,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:13:38,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:13:39,378 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-07 15:13:39,379 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:13:39,379 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:13:39,379 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2019-10-07 15:13:39,381 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-07 15:13:39,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-07 15:13:39,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2019-10-07 15:13:39,381 INFO L87 Difference]: Start difference. First operand 601 states and 772 transitions. Second operand 14 states. [2019-10-07 15:13:43,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:13:43,764 INFO L93 Difference]: Finished difference Result 1384 states and 1755 transitions. [2019-10-07 15:13:43,765 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-07 15:13:43,766 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 257 [2019-10-07 15:13:43,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:13:43,778 INFO L225 Difference]: With dead ends: 1384 [2019-10-07 15:13:43,778 INFO L226 Difference]: Without dead ends: 1120 [2019-10-07 15:13:43,781 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=119, Invalid=531, Unknown=0, NotChecked=0, Total=650 [2019-10-07 15:13:43,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1120 states. [2019-10-07 15:13:43,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1120 to 1109. [2019-10-07 15:13:43,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1109 states. [2019-10-07 15:13:43,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1109 states to 1109 states and 1438 transitions. [2019-10-07 15:13:43,859 INFO L78 Accepts]: Start accepts. Automaton has 1109 states and 1438 transitions. Word has length 257 [2019-10-07 15:13:43,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:13:43,861 INFO L462 AbstractCegarLoop]: Abstraction has 1109 states and 1438 transitions. [2019-10-07 15:13:43,861 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-07 15:13:43,861 INFO L276 IsEmpty]: Start isEmpty. Operand 1109 states and 1438 transitions. [2019-10-07 15:13:43,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2019-10-07 15:13:43,869 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:13:43,870 INFO L385 BasicCegarLoop]: trace histogram [4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:13:43,870 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:13:43,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:13:43,870 INFO L82 PathProgramCache]: Analyzing trace with hash 1039461052, now seen corresponding path program 1 times [2019-10-07 15:13:43,871 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:13:43,871 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:13:43,871 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:13:43,871 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:13:43,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:13:43,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:13:44,178 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-07 15:13:44,179 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:13:44,179 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:13:44,179 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:13:44,181 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:13:44,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:13:44,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:13:44,182 INFO L87 Difference]: Start difference. First operand 1109 states and 1438 transitions. Second operand 3 states. [2019-10-07 15:13:44,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:13:44,248 INFO L93 Difference]: Finished difference Result 2458 states and 3331 transitions. [2019-10-07 15:13:44,249 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:13:44,249 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 273 [2019-10-07 15:13:44,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:13:44,260 INFO L225 Difference]: With dead ends: 2458 [2019-10-07 15:13:44,261 INFO L226 Difference]: Without dead ends: 1407 [2019-10-07 15:13:44,266 INFO L606 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 [2019-10-07 15:13:44,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1407 states. [2019-10-07 15:13:44,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1407 to 1405. [2019-10-07 15:13:44,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1405 states. [2019-10-07 15:13:44,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1405 states to 1405 states and 1946 transitions. [2019-10-07 15:13:44,369 INFO L78 Accepts]: Start accepts. Automaton has 1405 states and 1946 transitions. Word has length 273 [2019-10-07 15:13:44,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:13:44,369 INFO L462 AbstractCegarLoop]: Abstraction has 1405 states and 1946 transitions. [2019-10-07 15:13:44,370 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:13:44,370 INFO L276 IsEmpty]: Start isEmpty. Operand 1405 states and 1946 transitions. [2019-10-07 15:13:44,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2019-10-07 15:13:44,380 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:13:44,381 INFO L385 BasicCegarLoop]: trace histogram [4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:13:44,381 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:13:44,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:13:44,381 INFO L82 PathProgramCache]: Analyzing trace with hash -1854298274, now seen corresponding path program 1 times [2019-10-07 15:13:44,382 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:13:44,382 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:13:44,382 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:13:44,382 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:13:44,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:13:44,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:13:44,665 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-07 15:13:44,666 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:13:44,666 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:13:44,668 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:13:44,672 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:13:44,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:13:44,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:13:44,673 INFO L87 Difference]: Start difference. First operand 1405 states and 1946 transitions. Second operand 3 states. [2019-10-07 15:13:44,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:13:44,784 INFO L93 Difference]: Finished difference Result 3322 states and 4815 transitions. [2019-10-07 15:13:44,785 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:13:44,785 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 274 [2019-10-07 15:13:44,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:13:44,802 INFO L225 Difference]: With dead ends: 3322 [2019-10-07 15:13:44,802 INFO L226 Difference]: Without dead ends: 1975 [2019-10-07 15:13:44,809 INFO L606 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 [2019-10-07 15:13:44,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1975 states. [2019-10-07 15:13:44,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1975 to 1973. [2019-10-07 15:13:44,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1973 states. [2019-10-07 15:13:44,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1973 states to 1973 states and 2914 transitions. [2019-10-07 15:13:44,980 INFO L78 Accepts]: Start accepts. Automaton has 1973 states and 2914 transitions. Word has length 274 [2019-10-07 15:13:44,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:13:44,983 INFO L462 AbstractCegarLoop]: Abstraction has 1973 states and 2914 transitions. [2019-10-07 15:13:44,984 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:13:44,984 INFO L276 IsEmpty]: Start isEmpty. Operand 1973 states and 2914 transitions. [2019-10-07 15:13:45,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2019-10-07 15:13:45,001 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:13:45,001 INFO L385 BasicCegarLoop]: trace histogram [4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:13:45,001 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:13:45,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:13:45,002 INFO L82 PathProgramCache]: Analyzing trace with hash -51417956, now seen corresponding path program 1 times [2019-10-07 15:13:45,002 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:13:45,002 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:13:45,003 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:13:45,003 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:13:45,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:13:45,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:13:45,215 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-07 15:13:45,215 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:13:45,216 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:13:45,216 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:13:45,216 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:13:45,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:13:45,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:13:45,218 INFO L87 Difference]: Start difference. First operand 1973 states and 2914 transitions. Second operand 3 states. [2019-10-07 15:13:45,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:13:45,392 INFO L93 Difference]: Finished difference Result 4978 states and 7639 transitions. [2019-10-07 15:13:45,392 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:13:45,392 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 275 [2019-10-07 15:13:45,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:13:45,420 INFO L225 Difference]: With dead ends: 4978 [2019-10-07 15:13:45,421 INFO L226 Difference]: Without dead ends: 3063 [2019-10-07 15:13:45,433 INFO L606 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 [2019-10-07 15:13:45,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3063 states. [2019-10-07 15:13:45,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3063 to 3061. [2019-10-07 15:13:45,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3061 states. [2019-10-07 15:13:45,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3061 states to 3061 states and 4754 transitions. [2019-10-07 15:13:45,718 INFO L78 Accepts]: Start accepts. Automaton has 3061 states and 4754 transitions. Word has length 275 [2019-10-07 15:13:45,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:13:45,718 INFO L462 AbstractCegarLoop]: Abstraction has 3061 states and 4754 transitions. [2019-10-07 15:13:45,718 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:13:45,719 INFO L276 IsEmpty]: Start isEmpty. Operand 3061 states and 4754 transitions. [2019-10-07 15:13:45,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2019-10-07 15:13:45,742 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:13:45,743 INFO L385 BasicCegarLoop]: trace histogram [4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:13:45,743 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:13:45,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:13:45,744 INFO L82 PathProgramCache]: Analyzing trace with hash -924111490, now seen corresponding path program 1 times [2019-10-07 15:13:45,744 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:13:45,744 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:13:45,744 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:13:45,745 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:13:45,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:13:45,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:13:46,040 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-07 15:13:46,040 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:13:46,041 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:13:46,041 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:13:46,042 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:13:46,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:13:46,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:13:46,042 INFO L87 Difference]: Start difference. First operand 3061 states and 4754 transitions. Second operand 3 states. [2019-10-07 15:13:46,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:13:46,261 INFO L93 Difference]: Finished difference Result 8274 states and 13191 transitions. [2019-10-07 15:13:46,262 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:13:46,262 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 276 [2019-10-07 15:13:46,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:13:46,300 INFO L225 Difference]: With dead ends: 8274 [2019-10-07 15:13:46,300 INFO L226 Difference]: Without dead ends: 5271 [2019-10-07 15:13:46,315 INFO L606 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 [2019-10-07 15:13:46,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5271 states. [2019-10-07 15:13:46,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5271 to 5269. [2019-10-07 15:13:46,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5269 states. [2019-10-07 15:13:46,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5269 states to 5269 states and 8434 transitions. [2019-10-07 15:13:46,625 INFO L78 Accepts]: Start accepts. Automaton has 5269 states and 8434 transitions. Word has length 276 [2019-10-07 15:13:46,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:13:46,626 INFO L462 AbstractCegarLoop]: Abstraction has 5269 states and 8434 transitions. [2019-10-07 15:13:46,626 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:13:46,626 INFO L276 IsEmpty]: Start isEmpty. Operand 5269 states and 8434 transitions. [2019-10-07 15:13:46,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2019-10-07 15:13:46,660 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:13:46,661 INFO L385 BasicCegarLoop]: trace histogram [4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:13:46,661 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:13:46,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:13:46,661 INFO L82 PathProgramCache]: Analyzing trace with hash -1544987012, now seen corresponding path program 1 times [2019-10-07 15:13:46,662 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:13:46,662 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:13:46,662 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:13:46,662 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:13:46,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:13:46,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:13:46,946 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-07 15:13:46,946 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:13:46,946 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:13:46,947 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:13:46,947 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:13:46,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:13:46,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:13:46,948 INFO L87 Difference]: Start difference. First operand 5269 states and 8434 transitions. Second operand 3 states. [2019-10-07 15:13:47,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:13:47,333 INFO L93 Difference]: Finished difference Result 14578 states and 23719 transitions. [2019-10-07 15:13:47,334 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:13:47,334 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 277 [2019-10-07 15:13:47,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:13:47,425 INFO L225 Difference]: With dead ends: 14578 [2019-10-07 15:13:47,425 INFO L226 Difference]: Without dead ends: 9367 [2019-10-07 15:13:47,452 INFO L606 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 [2019-10-07 15:13:47,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9367 states. [2019-10-07 15:13:48,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9367 to 9365. [2019-10-07 15:13:48,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9365 states. [2019-10-07 15:13:48,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9365 states to 9365 states and 15218 transitions. [2019-10-07 15:13:48,203 INFO L78 Accepts]: Start accepts. Automaton has 9365 states and 15218 transitions. Word has length 277 [2019-10-07 15:13:48,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:13:48,203 INFO L462 AbstractCegarLoop]: Abstraction has 9365 states and 15218 transitions. [2019-10-07 15:13:48,203 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:13:48,203 INFO L276 IsEmpty]: Start isEmpty. Operand 9365 states and 15218 transitions. [2019-10-07 15:13:48,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2019-10-07 15:13:48,264 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:13:48,265 INFO L385 BasicCegarLoop]: trace histogram [4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:13:48,265 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:13:48,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:13:48,265 INFO L82 PathProgramCache]: Analyzing trace with hash 1944124700, now seen corresponding path program 1 times [2019-10-07 15:13:48,266 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:13:48,266 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:13:48,266 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:13:48,266 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:13:48,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:13:48,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:13:48,981 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-07 15:13:48,982 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:13:48,982 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 15:13:48,982 INFO L95 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 [2019-10-07 15:13:49,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:13:49,819 INFO L256 TraceCheckSpWp]: Trace formula consists of 3862 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 15:13:49,860 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 15:13:50,698 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2019-10-07 15:13:50,698 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 15:13:51,241 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-07 15:13:51,241 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 15:13:51,284 INFO L162 IcfgInterpreter]: Started Sifa with 225 locations of interest [2019-10-07 15:13:51,284 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 15:13:51,291 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 15:13:51,298 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 15:13:51,298 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 15:15:20,558 WARN L191 SmtUtils]: Spent 413.00 ms on a formula simplification that was a NOOP. DAG size: 734 [2019-10-07 15:15:25,811 WARN L191 SmtUtils]: Spent 1.60 s on a formula simplification. DAG size of input: 348 DAG size of output: 283 [2019-10-07 15:15:26,218 WARN L191 SmtUtils]: Spent 398.00 ms on a formula simplification that was a NOOP. DAG size: 779 [2019-10-07 15:15:26,563 WARN L191 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 779 [2019-10-07 15:15:26,800 WARN L191 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 779 [2019-10-07 15:15:27,021 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 462 [2019-10-07 15:15:27,738 WARN L191 SmtUtils]: Spent 715.00 ms on a formula simplification that was a NOOP. DAG size: 1085 [2019-10-07 15:15:28,468 WARN L191 SmtUtils]: Spent 708.00 ms on a formula simplification that was a NOOP. DAG size: 1085 [2019-10-07 15:15:29,152 WARN L191 SmtUtils]: Spent 680.00 ms on a formula simplification that was a NOOP. DAG size: 1085 [2019-10-07 15:15:29,350 WARN L191 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 462 [2019-10-07 15:15:30,039 WARN L191 SmtUtils]: Spent 687.00 ms on a formula simplification that was a NOOP. DAG size: 1085 [2019-10-07 15:15:31,370 WARN L191 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 1087 DAG size of output: 1085 [2019-10-07 15:15:32,074 WARN L191 SmtUtils]: Spent 700.00 ms on a formula simplification that was a NOOP. DAG size: 1085 [2019-10-07 15:15:32,222 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 462 [2019-10-07 15:15:32,910 WARN L191 SmtUtils]: Spent 685.00 ms on a formula simplification that was a NOOP. DAG size: 1085 [2019-10-07 15:15:33,585 WARN L191 SmtUtils]: Spent 672.00 ms on a formula simplification that was a NOOP. DAG size: 1085 [2019-10-07 15:15:34,275 WARN L191 SmtUtils]: Spent 686.00 ms on a formula simplification that was a NOOP. DAG size: 1085 [2019-10-07 15:15:34,428 WARN L191 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 462 [2019-10-07 15:15:35,091 WARN L191 SmtUtils]: Spent 660.00 ms on a formula simplification that was a NOOP. DAG size: 1085 [2019-10-07 15:15:35,118 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 586 for LOIs [2019-10-07 15:15:35,490 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 696 [2019-10-07 15:15:35,607 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 696 [2019-10-07 15:15:35,735 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 462 [2019-10-07 15:15:36,237 WARN L191 SmtUtils]: Spent 501.00 ms on a formula simplification that was a NOOP. DAG size: 1002 [2019-10-07 15:15:36,239 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1143 for LOIs [2019-10-07 15:15:36,899 WARN L191 SmtUtils]: Spent 659.00 ms on a formula simplification that was a NOOP. DAG size: 1143 [2019-10-07 15:15:37,563 WARN L191 SmtUtils]: Spent 660.00 ms on a formula simplification that was a NOOP. DAG size: 1143 [2019-10-07 15:15:37,840 WARN L191 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 15:15:38,924 WARN L191 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 1349 [2019-10-07 15:15:39,589 WARN L191 SmtUtils]: Spent 653.00 ms on a formula simplification that was a NOOP. DAG size: 1143 [2019-10-07 15:15:40,251 WARN L191 SmtUtils]: Spent 657.00 ms on a formula simplification that was a NOOP. DAG size: 1143 [2019-10-07 15:15:40,517 WARN L191 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 15:15:41,587 WARN L191 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 1349 [2019-10-07 15:15:42,261 WARN L191 SmtUtils]: Spent 644.00 ms on a formula simplification that was a NOOP. DAG size: 1143 [2019-10-07 15:15:42,908 WARN L191 SmtUtils]: Spent 643.00 ms on a formula simplification that was a NOOP. DAG size: 1143 [2019-10-07 15:15:43,293 WARN L191 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 15:15:44,363 WARN L191 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 1349 [2019-10-07 15:15:45,432 WARN L191 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 1351 DAG size of output: 1143 [2019-10-07 15:15:46,089 WARN L191 SmtUtils]: Spent 654.00 ms on a formula simplification that was a NOOP. DAG size: 1143 [2019-10-07 15:15:46,408 WARN L191 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 15:15:47,471 WARN L191 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 1349 [2019-10-07 15:15:48,134 WARN L191 SmtUtils]: Spent 648.00 ms on a formula simplification that was a NOOP. DAG size: 1143 [2019-10-07 15:15:48,774 WARN L191 SmtUtils]: Spent 636.00 ms on a formula simplification that was a NOOP. DAG size: 1143 [2019-10-07 15:15:49,030 WARN L191 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 15:15:50,091 WARN L191 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 1349 [2019-10-07 15:15:50,729 WARN L191 SmtUtils]: Spent 635.00 ms on a formula simplification that was a NOOP. DAG size: 1143 [2019-10-07 15:15:51,372 WARN L191 SmtUtils]: Spent 640.00 ms on a formula simplification that was a NOOP. DAG size: 1143 [2019-10-07 15:15:51,727 WARN L191 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 15:15:52,805 WARN L191 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 1349 [2019-10-07 15:15:53,449 WARN L191 SmtUtils]: Spent 641.00 ms on a formula simplification that was a NOOP. DAG size: 1143 [2019-10-07 15:15:54,102 WARN L191 SmtUtils]: Spent 649.00 ms on a formula simplification that was a NOOP. DAG size: 1143 [2019-10-07 15:15:54,362 WARN L191 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 15:15:55,451 WARN L191 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 1349 [2019-10-07 15:15:56,104 WARN L191 SmtUtils]: Spent 650.00 ms on a formula simplification that was a NOOP. DAG size: 1143 [2019-10-07 15:15:56,752 WARN L191 SmtUtils]: Spent 645.00 ms on a formula simplification that was a NOOP. DAG size: 1143 [2019-10-07 15:15:57,014 WARN L191 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 15:15:58,085 WARN L191 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 1349 [2019-10-07 15:15:58,750 WARN L191 SmtUtils]: Spent 662.00 ms on a formula simplification that was a NOOP. DAG size: 1143 [2019-10-07 15:15:59,415 WARN L191 SmtUtils]: Spent 662.00 ms on a formula simplification that was a NOOP. DAG size: 1143 [2019-10-07 15:15:59,674 WARN L191 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 15:16:00,767 WARN L191 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 1349 [2019-10-07 15:16:01,425 WARN L191 SmtUtils]: Spent 655.00 ms on a formula simplification that was a NOOP. DAG size: 1143 [2019-10-07 15:16:02,090 WARN L191 SmtUtils]: Spent 662.00 ms on a formula simplification that was a NOOP. DAG size: 1143 [2019-10-07 15:16:02,351 WARN L191 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 15:16:03,440 WARN L191 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 1349 [2019-10-07 15:16:04,100 WARN L191 SmtUtils]: Spent 657.00 ms on a formula simplification that was a NOOP. DAG size: 1143 [2019-10-07 15:16:04,757 WARN L191 SmtUtils]: Spent 654.00 ms on a formula simplification that was a NOOP. DAG size: 1143 [2019-10-07 15:16:05,029 WARN L191 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 15:16:06,120 WARN L191 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 1349 [2019-10-07 15:16:06,776 WARN L191 SmtUtils]: Spent 653.00 ms on a formula simplification that was a NOOP. DAG size: 1143 [2019-10-07 15:16:07,445 WARN L191 SmtUtils]: Spent 665.00 ms on a formula simplification that was a NOOP. DAG size: 1143 [2019-10-07 15:16:07,710 WARN L191 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 15:16:08,789 WARN L191 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 1349 [2019-10-07 15:16:09,457 WARN L191 SmtUtils]: Spent 666.00 ms on a formula simplification that was a NOOP. DAG size: 1143 [2019-10-07 15:16:10,123 WARN L191 SmtUtils]: Spent 662.00 ms on a formula simplification that was a NOOP. DAG size: 1143 [2019-10-07 15:16:10,386 WARN L191 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 15:16:11,474 WARN L191 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 1349 [2019-10-07 15:16:12,665 WARN L191 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 1349 [2019-10-07 15:16:13,763 WARN L191 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 1349 [2019-10-07 15:16:14,035 WARN L191 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 15:16:15,140 WARN L191 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 1349 [2019-10-07 15:16:17,144 WARN L191 SmtUtils]: Spent 1.99 s on a formula simplification. DAG size of input: 1351 DAG size of output: 1349 [2019-10-07 15:16:18,229 WARN L191 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 1349 [2019-10-07 15:16:18,508 WARN L191 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 15:16:19,594 WARN L191 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 1349 [2019-10-07 15:16:20,698 WARN L191 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 1349 [2019-10-07 15:16:21,783 WARN L191 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 1349 [2019-10-07 15:16:22,047 WARN L191 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 15:16:23,134 WARN L191 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 1349 [2019-10-07 15:16:24,261 WARN L191 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 1353 [2019-10-07 15:16:25,369 WARN L191 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 1353 [2019-10-07 15:16:25,655 WARN L191 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 663 [2019-10-07 15:16:26,749 WARN L191 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 1353 [2019-10-07 15:16:29,637 WARN L191 SmtUtils]: Spent 2.86 s on a formula simplification. DAG size of input: 1355 DAG size of output: 1351 [2019-10-07 15:16:30,737 WARN L191 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 1351 [2019-10-07 15:16:31,010 WARN L191 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 663 [2019-10-07 15:16:32,119 WARN L191 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 1353 [2019-10-07 15:16:34,006 WARN L191 SmtUtils]: Spent 1.88 s on a formula simplification. DAG size of input: 1355 DAG size of output: 1351 [2019-10-07 15:16:35,100 WARN L191 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 1351 [2019-10-07 15:16:35,365 WARN L191 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 663 [2019-10-07 15:16:36,473 WARN L191 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 1353 [2019-10-07 15:16:37,582 WARN L191 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 1351 [2019-10-07 15:16:38,671 WARN L191 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 1351 [2019-10-07 15:16:38,938 WARN L191 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 663 [2019-10-07 15:16:40,042 WARN L191 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 1353 [2019-10-07 15:16:41,160 WARN L191 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 1353 [2019-10-07 15:16:42,260 WARN L191 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 1353 [2019-10-07 15:16:42,536 WARN L191 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 663 [2019-10-07 15:16:43,646 WARN L191 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 1355 [2019-10-07 15:16:46,525 WARN L191 SmtUtils]: Spent 2.84 s on a formula simplification. DAG size of input: 1351 DAG size of output: 1349 [2019-10-07 15:16:47,610 WARN L191 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 1349 [2019-10-07 15:16:47,884 WARN L191 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 15:16:48,971 WARN L191 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 1349 [2019-10-07 15:16:50,966 WARN L191 SmtUtils]: Spent 1.98 s on a formula simplification. DAG size of input: 1351 DAG size of output: 1349 [2019-10-07 15:16:52,060 WARN L191 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 1349 [2019-10-07 15:16:52,355 WARN L191 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 15:16:53,440 WARN L191 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 1349 [2019-10-07 15:16:54,533 WARN L191 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 1349 [2019-10-07 15:16:55,621 WARN L191 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 1349 [2019-10-07 15:16:55,882 WARN L191 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 15:16:56,982 WARN L191 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 1349 [2019-10-07 15:16:58,977 WARN L191 SmtUtils]: Spent 1.96 s on a formula simplification. DAG size of input: 1351 DAG size of output: 1349 [2019-10-07 15:17:00,070 WARN L191 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 1349 [2019-10-07 15:17:00,346 WARN L191 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 15:17:01,435 WARN L191 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 1349 [2019-10-07 15:17:03,420 WARN L191 SmtUtils]: Spent 1.97 s on a formula simplification. DAG size of input: 1351 DAG size of output: 1349 [2019-10-07 15:17:04,523 WARN L191 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 1349 [2019-10-07 15:17:04,790 WARN L191 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 15:17:05,891 WARN L191 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 1349 [2019-10-07 15:17:06,988 WARN L191 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 1349 [2019-10-07 15:17:08,080 WARN L191 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 1349 [2019-10-07 15:17:08,344 WARN L191 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 15:17:09,412 WARN L191 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 1349 [2019-10-07 15:17:10,532 WARN L191 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 1353 [2019-10-07 15:17:11,627 WARN L191 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 1353 [2019-10-07 15:17:11,893 WARN L191 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 663 [2019-10-07 15:17:12,981 WARN L191 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 1353 [2019-10-07 15:17:14,863 WARN L191 SmtUtils]: Spent 1.86 s on a formula simplification. DAG size of input: 1355 DAG size of output: 1351 [2019-10-07 15:17:15,939 WARN L191 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 1351 [2019-10-07 15:17:16,207 WARN L191 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 663 [2019-10-07 15:17:17,317 WARN L191 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 1353 [2019-10-07 15:17:19,180 WARN L191 SmtUtils]: Spent 1.86 s on a formula simplification. DAG size of input: 1355 DAG size of output: 1351 [2019-10-07 15:17:20,268 WARN L191 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 1351 [2019-10-07 15:17:20,532 WARN L191 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 663 [2019-10-07 15:17:21,643 WARN L191 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 1353 [2019-10-07 15:17:23,529 WARN L191 SmtUtils]: Spent 1.88 s on a formula simplification. DAG size of input: 1360 DAG size of output: 1353 [2019-10-07 15:17:24,638 WARN L191 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 1353 [2019-10-07 15:17:24,932 WARN L191 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 663 [2019-10-07 15:17:26,031 WARN L191 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 1353 [2019-10-07 15:17:27,928 WARN L191 SmtUtils]: Spent 1.89 s on a formula simplification. DAG size of input: 1362 DAG size of output: 1355 [2019-10-07 15:17:29,033 WARN L191 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 1355 [2019-10-07 15:17:29,349 WARN L191 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 663 [2019-10-07 15:17:30,452 WARN L191 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 1355 [2019-10-07 15:17:30,706 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:17:30,707 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:133) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.lib.sifa.PriorityWorklist.add(PriorityWorklist.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.lambda$2(DagInterpreter.java:135) at java.lang.Iterable.forEach(Iterable.java:75) at java.util.Collections$UnmodifiableCollection.forEach(Collections.java:1080) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:135) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:139) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:287) ... 21 more [2019-10-07 15:17:30,715 INFO L168 Benchmark]: Toolchain (without parser) took 240830.38 ms. Allocated memory was 145.2 MB in the beginning and 2.0 GB in the end (delta: 1.8 GB). Free memory was 100.2 MB in the beginning and 1.1 GB in the end (delta: -1.0 GB). Peak memory consumption was 777.7 MB. Max. memory is 7.1 GB. [2019-10-07 15:17:30,716 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 145.2 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-10-07 15:17:30,717 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1086.14 ms. Allocated memory was 145.2 MB in the beginning and 203.4 MB in the end (delta: 58.2 MB). Free memory was 99.8 MB in the beginning and 135.1 MB in the end (delta: -35.3 MB). Peak memory consumption was 30.9 MB. Max. memory is 7.1 GB. [2019-10-07 15:17:30,717 INFO L168 Benchmark]: Boogie Preprocessor took 236.41 ms. Allocated memory is still 203.4 MB. Free memory was 135.1 MB in the beginning and 125.5 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2019-10-07 15:17:30,718 INFO L168 Benchmark]: RCFGBuilder took 4880.35 ms. Allocated memory was 203.4 MB in the beginning and 299.4 MB in the end (delta: 95.9 MB). Free memory was 125.5 MB in the beginning and 249.1 MB in the end (delta: -123.7 MB). Peak memory consumption was 146.2 MB. Max. memory is 7.1 GB. [2019-10-07 15:17:30,718 INFO L168 Benchmark]: TraceAbstraction took 234622.79 ms. Allocated memory was 299.4 MB in the beginning and 2.0 GB in the end (delta: 1.7 GB). Free memory was 249.1 MB in the beginning and 1.1 GB in the end (delta: -897.9 MB). Peak memory consumption was 772.5 MB. Max. memory is 7.1 GB. [2019-10-07 15:17:30,721 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 145.2 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1086.14 ms. Allocated memory was 145.2 MB in the beginning and 203.4 MB in the end (delta: 58.2 MB). Free memory was 99.8 MB in the beginning and 135.1 MB in the end (delta: -35.3 MB). Peak memory consumption was 30.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 236.41 ms. Allocated memory is still 203.4 MB. Free memory was 135.1 MB in the beginning and 125.5 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4880.35 ms. Allocated memory was 203.4 MB in the beginning and 299.4 MB in the end (delta: 95.9 MB). Free memory was 125.5 MB in the beginning and 249.1 MB in the end (delta: -123.7 MB). Peak memory consumption was 146.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 234622.79 ms. Allocated memory was 299.4 MB in the beginning and 2.0 GB in the end (delta: 1.7 GB). Free memory was 249.1 MB in the beginning and 1.1 GB in the end (delta: -897.9 MB). Peak memory consumption was 772.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...