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_spec4_product27.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:15:04,240 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:15:04,244 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:15:04,260 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:15:04,261 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:15:04,263 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:15:04,264 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:15:04,273 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:15:04,278 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:15:04,280 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:15:04,282 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:15:04,283 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:15:04,284 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:15:04,285 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:15:04,288 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:15:04,289 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:15:04,291 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:15:04,291 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:15:04,293 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:15:04,297 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:15:04,301 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:15:04,303 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:15:04,306 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:15:04,306 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:15:04,309 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 03:15:04,309 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 03:15:04,310 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 03:15:04,311 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 03:15:04,312 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 03:15:04,313 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 03:15:04,313 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:15:04,315 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:15:04,315 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:15:04,316 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:15:04,317 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:15:04,318 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:15:04,318 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:15:04,319 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:15:04,319 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:15:04,320 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:15:04,321 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:15:04,322 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 03:15:04,336 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:15:04,336 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:15:04,337 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:15:04,338 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:15:04,338 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:15:04,338 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:15:04,338 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:15:04,338 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:15:04,339 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:15:04,339 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:15:04,339 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:15:04,339 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:15:04,339 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:15:04,340 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:15:04,340 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:15:04,340 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:15:04,340 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:15:04,340 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:15:04,341 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:15:04,341 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:15:04,341 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:15:04,341 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:15:04,341 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:15:04,342 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:15:04,342 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:15:04,342 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:15:04,342 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:15:04,342 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:15:04,343 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-15 03:15:04,610 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:15:04,622 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:15:04,626 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:15:04,627 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:15:04,627 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:15:04,628 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec4_product27.cil.c [2019-10-15 03:15:04,688 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dcc549b24/19df94cdf29a485ca3963c99cbb6f635/FLAG396159fb7 [2019-10-15 03:15:05,280 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:15:05,281 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec4_product27.cil.c [2019-10-15 03:15:05,300 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dcc549b24/19df94cdf29a485ca3963c99cbb6f635/FLAG396159fb7 [2019-10-15 03:15:05,501 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dcc549b24/19df94cdf29a485ca3963c99cbb6f635 [2019-10-15 03:15:05,511 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:15:05,512 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:15:05,513 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:15:05,513 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:15:05,516 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:15:05,517 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:15:05" (1/1) ... [2019-10-15 03:15:05,520 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9375a63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:05, skipping insertion in model container [2019-10-15 03:15:05,520 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:15:05" (1/1) ... [2019-10-15 03:15:05,527 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:15:05,610 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:15:06,318 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:15:06,343 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:15:06,468 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:15:06,558 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:15:06,559 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:06 WrapperNode [2019-10-15 03:15:06,559 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:15:06,560 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:15:06,560 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:15:06,560 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:15:06,574 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:06" (1/1) ... [2019-10-15 03:15:06,574 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:06" (1/1) ... [2019-10-15 03:15:06,605 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:06" (1/1) ... [2019-10-15 03:15:06,606 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:06" (1/1) ... [2019-10-15 03:15:06,662 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:06" (1/1) ... [2019-10-15 03:15:06,689 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:06" (1/1) ... [2019-10-15 03:15:06,709 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:06" (1/1) ... [2019-10-15 03:15:06,740 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:15:06,740 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:15:06,740 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:15:06,741 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:15:06,745 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:06" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:15:06,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:15:06,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:15:06,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 03:15:06,821 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 03:15:06,821 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 03:15:06,822 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 03:15:06,823 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 03:15:06,824 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 03:15:06,824 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 03:15:06,824 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 03:15:06,824 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 03:15:06,825 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 03:15:06,825 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 03:15:06,826 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 03:15:06,826 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 03:15:06,826 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 03:15:06,828 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 03:15:06,828 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 03:15:06,829 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 03:15:06,829 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 03:15:06,829 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 03:15:06,829 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 03:15:06,830 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 03:15:06,830 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 03:15:06,830 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 03:15:06,830 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 03:15:06,830 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 03:15:06,831 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 03:15:06,831 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 03:15:06,831 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 03:15:06,831 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 03:15:06,831 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 03:15:06,832 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 03:15:06,832 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 03:15:06,832 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 03:15:06,833 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 03:15:06,833 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 03:15:06,833 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 03:15:06,833 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 03:15:06,833 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 03:15:06,833 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 03:15:06,833 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 03:15:06,834 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 03:15:06,834 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 03:15:06,834 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 03:15:06,834 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 03:15:06,834 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 03:15:06,834 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 03:15:06,834 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 03:15:06,835 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 03:15:06,835 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 03:15:06,835 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 03:15:06,835 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 03:15:06,835 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 03:15:06,835 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 03:15:06,835 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 03:15:06,836 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 03:15:06,836 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 03:15:06,836 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 03:15:06,836 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 03:15:06,837 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-15 03:15:06,837 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-15 03:15:06,837 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 03:15:06,837 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 03:15:06,837 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 03:15:06,837 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 03:15:06,838 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 03:15:06,838 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 03:15:06,838 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 03:15:06,838 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 03:15:06,838 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 03:15:06,838 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 03:15:06,838 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 03:15:06,839 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 03:15:06,839 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 03:15:06,839 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 03:15:06,840 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 03:15:06,840 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 03:15:06,840 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 03:15:06,840 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 03:15:06,841 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 03:15:06,841 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:15:06,842 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 03:15:06,842 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 03:15:06,842 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 03:15:06,842 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 03:15:06,842 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 03:15:06,843 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 03:15:06,843 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 03:15:06,843 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 03:15:06,843 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 03:15:06,843 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-15 03:15:06,844 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-15 03:15:06,844 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-15 03:15:06,844 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 03:15:06,844 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-15 03:15:06,844 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-15 03:15:06,844 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 03:15:06,844 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 03:15:06,844 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Keys [2019-10-15 03:15:06,845 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-15 03:15:06,845 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-15 03:15:06,845 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 03:15:06,845 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 03:15:06,845 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 03:15:06,845 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 03:15:06,845 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 03:15:06,846 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 03:15:06,846 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 03:15:06,846 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 03:15:06,846 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 03:15:06,846 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-15 03:15:06,846 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-15 03:15:06,846 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-15 03:15:06,846 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-15 03:15:06,847 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-15 03:15:06,847 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignForward_spec__1 [2019-10-15 03:15:06,847 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:15:06,847 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:15:06,847 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 03:15:06,848 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 03:15:06,848 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 03:15:06,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 03:15:06,849 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 03:15:06,849 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-15 03:15:06,850 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 03:15:06,850 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 03:15:06,850 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 03:15:06,850 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-15 03:15:06,850 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 03:15:06,850 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-15 03:15:06,851 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 03:15:06,851 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 03:15:06,852 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 03:15:06,854 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 03:15:06,855 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 03:15:06,855 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 03:15:06,855 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 03:15:06,855 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 03:15:06,856 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 03:15:06,856 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 03:15:06,856 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 03:15:06,856 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 03:15:06,857 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 03:15:06,864 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 03:15:06,864 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 03:15:06,864 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 03:15:06,864 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 03:15:06,864 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 03:15:06,864 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 03:15:06,864 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 03:15:06,865 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 03:15:06,865 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 03:15:06,865 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 03:15:06,865 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 03:15:06,865 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 03:15:06,865 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 03:15:06,865 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 03:15:06,865 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 03:15:06,866 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 03:15:06,866 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 03:15:06,866 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 03:15:06,866 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 03:15:06,866 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 03:15:06,867 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 03:15:06,867 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 03:15:06,867 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 03:15:06,867 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 03:15:06,867 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 03:15:06,867 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 03:15:06,868 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 03:15:06,868 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 03:15:06,868 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 03:15:06,868 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 03:15:06,868 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 03:15:06,868 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 03:15:06,868 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 03:15:06,868 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 03:15:06,868 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 03:15:06,869 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 03:15:06,869 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 03:15:06,869 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 03:15:06,869 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 03:15:06,869 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 03:15:06,869 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 03:15:06,869 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 03:15:06,869 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 03:15:06,870 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 03:15:06,870 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 03:15:06,870 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 03:15:06,870 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 03:15:06,870 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 03:15:06,871 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 03:15:06,871 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-15 03:15:06,871 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-15 03:15:06,871 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 03:15:06,871 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 03:15:06,871 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 03:15:06,871 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 03:15:06,871 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 03:15:06,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 03:15:06,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 03:15:06,872 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 03:15:06,872 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 03:15:06,872 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 03:15:06,872 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 03:15:06,872 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 03:15:06,872 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 03:15:06,872 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 03:15:06,873 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 03:15:06,873 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 03:15:06,873 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 03:15:06,873 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 03:15:06,873 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 03:15:06,873 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 03:15:06,873 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 03:15:06,874 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 03:15:06,874 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 03:15:06,874 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 03:15:06,874 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 03:15:06,874 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 03:15:06,874 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 03:15:06,874 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 03:15:06,875 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:15:06,875 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 03:15:06,875 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 03:15:06,875 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 03:15:06,875 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 03:15:06,875 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 03:15:06,876 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 03:15:06,876 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 03:15:06,876 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 03:15:06,876 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 03:15:06,876 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 03:15:06,877 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 03:15:06,877 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-15 03:15:06,877 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-15 03:15:06,877 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-15 03:15:06,877 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-15 03:15:06,877 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-15 03:15:06,878 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignForward_spec__1 [2019-10-15 03:15:06,878 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-15 03:15:06,878 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-15 03:15:06,878 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Keys [2019-10-15 03:15:06,878 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-15 03:15:06,878 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-15 03:15:06,878 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:15:06,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 03:15:06,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:15:11,144 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:15:11,145 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 03:15:11,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:15:11 BoogieIcfgContainer [2019-10-15 03:15:11,147 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:15:11,148 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:15:11,148 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:15:11,150 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:15:11,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:15:05" (1/3) ... [2019-10-15 03:15:11,151 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b5fbde8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:15:11, skipping insertion in model container [2019-10-15 03:15:11,151 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:06" (2/3) ... [2019-10-15 03:15:11,152 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b5fbde8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:15:11, skipping insertion in model container [2019-10-15 03:15:11,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:15:11" (3/3) ... [2019-10-15 03:15:11,154 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec4_product27.cil.c [2019-10-15 03:15:11,163 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:15:11,171 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:15:11,182 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:15:11,210 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:15:11,210 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:15:11,210 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:15:11,210 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:15:11,210 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:15:11,211 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:15:11,211 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:15:11,211 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:15:11,238 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states. [2019-10-15 03:15:11,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2019-10-15 03:15:11,254 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:11,255 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:15:11,257 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:11,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:11,263 INFO L82 PathProgramCache]: Analyzing trace with hash 1316750710, now seen corresponding path program 1 times [2019-10-15 03:15:11,271 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:11,272 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470181303] [2019-10-15 03:15:11,272 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:11,272 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:11,272 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:11,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:11,874 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-15 03:15:11,875 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470181303] [2019-10-15 03:15:11,875 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:15:11,876 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 03:15:11,876 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855277730] [2019-10-15 03:15:11,881 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 03:15:11,881 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:15:11,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 03:15:11,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:15:11,897 INFO L87 Difference]: Start difference. First operand 428 states. Second operand 2 states. [2019-10-15 03:15:11,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:15:11,991 INFO L93 Difference]: Finished difference Result 631 states and 744 transitions. [2019-10-15 03:15:11,991 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 03:15:11,994 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 125 [2019-10-15 03:15:11,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:15:12,031 INFO L225 Difference]: With dead ends: 631 [2019-10-15 03:15:12,031 INFO L226 Difference]: Without dead ends: 401 [2019-10-15 03:15:12,042 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:15:12,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2019-10-15 03:15:12,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 401. [2019-10-15 03:15:12,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 401 states. [2019-10-15 03:15:12,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 470 transitions. [2019-10-15 03:15:12,153 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 470 transitions. Word has length 125 [2019-10-15 03:15:12,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:15:12,155 INFO L462 AbstractCegarLoop]: Abstraction has 401 states and 470 transitions. [2019-10-15 03:15:12,155 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 03:15:12,155 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 470 transitions. [2019-10-15 03:15:12,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2019-10-15 03:15:12,160 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:12,161 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:15:12,161 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:12,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:12,161 INFO L82 PathProgramCache]: Analyzing trace with hash 1915856598, now seen corresponding path program 1 times [2019-10-15 03:15:12,162 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:12,162 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460751286] [2019-10-15 03:15:12,162 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:12,162 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:12,162 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:12,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:12,421 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-15 03:15:12,422 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460751286] [2019-10-15 03:15:12,422 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:15:12,422 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:15:12,423 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123902851] [2019-10-15 03:15:12,425 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:15:12,425 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:15:12,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:15:12,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:15:12,426 INFO L87 Difference]: Start difference. First operand 401 states and 470 transitions. Second operand 3 states. [2019-10-15 03:15:12,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:15:12,500 INFO L93 Difference]: Finished difference Result 616 states and 713 transitions. [2019-10-15 03:15:12,501 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:15:12,501 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 126 [2019-10-15 03:15:12,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:15:12,505 INFO L225 Difference]: With dead ends: 616 [2019-10-15 03:15:12,505 INFO L226 Difference]: Without dead ends: 403 [2019-10-15 03:15:12,507 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:15:12,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2019-10-15 03:15:12,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 403. [2019-10-15 03:15:12,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 403 states. [2019-10-15 03:15:12,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 472 transitions. [2019-10-15 03:15:12,540 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 472 transitions. Word has length 126 [2019-10-15 03:15:12,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:15:12,540 INFO L462 AbstractCegarLoop]: Abstraction has 403 states and 472 transitions. [2019-10-15 03:15:12,540 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:15:12,541 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 472 transitions. [2019-10-15 03:15:12,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2019-10-15 03:15:12,544 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:12,544 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:15:12,545 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:12,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:12,545 INFO L82 PathProgramCache]: Analyzing trace with hash 1631421489, now seen corresponding path program 1 times [2019-10-15 03:15:12,545 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:12,546 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436805436] [2019-10-15 03:15:12,546 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:12,546 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:12,546 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:12,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:12,747 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-15 03:15:12,747 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436805436] [2019-10-15 03:15:12,747 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:15:12,748 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:15:12,748 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916326382] [2019-10-15 03:15:12,749 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:15:12,749 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:15:12,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:15:12,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:15:12,749 INFO L87 Difference]: Start difference. First operand 403 states and 472 transitions. Second operand 3 states. [2019-10-15 03:15:12,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:15:12,794 INFO L93 Difference]: Finished difference Result 792 states and 957 transitions. [2019-10-15 03:15:12,794 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:15:12,794 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 138 [2019-10-15 03:15:12,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:15:12,799 INFO L225 Difference]: With dead ends: 792 [2019-10-15 03:15:12,799 INFO L226 Difference]: Without dead ends: 447 [2019-10-15 03:15:12,801 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:15:12,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2019-10-15 03:15:12,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 446. [2019-10-15 03:15:12,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 446 states. [2019-10-15 03:15:12,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 546 transitions. [2019-10-15 03:15:12,837 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 546 transitions. Word has length 138 [2019-10-15 03:15:12,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:15:12,838 INFO L462 AbstractCegarLoop]: Abstraction has 446 states and 546 transitions. [2019-10-15 03:15:12,838 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:15:12,838 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 546 transitions. [2019-10-15 03:15:12,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2019-10-15 03:15:12,841 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:12,842 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:15:12,842 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:12,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:12,842 INFO L82 PathProgramCache]: Analyzing trace with hash -1482362282, now seen corresponding path program 1 times [2019-10-15 03:15:12,842 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:12,843 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922581306] [2019-10-15 03:15:12,843 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:12,843 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:12,843 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:12,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:13,409 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 03:15:13,410 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922581306] [2019-10-15 03:15:13,410 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:15:13,410 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2019-10-15 03:15:13,410 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059559952] [2019-10-15 03:15:13,411 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2019-10-15 03:15:13,411 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:15:13,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2019-10-15 03:15:13,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2019-10-15 03:15:13,413 INFO L87 Difference]: Start difference. First operand 446 states and 546 transitions. Second operand 21 states. [2019-10-15 03:15:21,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:15:21,302 INFO L93 Difference]: Finished difference Result 898 states and 1073 transitions. [2019-10-15 03:15:21,303 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-10-15 03:15:21,303 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 139 [2019-10-15 03:15:21,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:15:21,308 INFO L225 Difference]: With dead ends: 898 [2019-10-15 03:15:21,309 INFO L226 Difference]: Without dead ends: 691 [2019-10-15 03:15:21,311 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=195, Invalid=1527, Unknown=0, NotChecked=0, Total=1722 [2019-10-15 03:15:21,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2019-10-15 03:15:21,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 682. [2019-10-15 03:15:21,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 682 states. [2019-10-15 03:15:21,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 682 states to 682 states and 824 transitions. [2019-10-15 03:15:21,376 INFO L78 Accepts]: Start accepts. Automaton has 682 states and 824 transitions. Word has length 139 [2019-10-15 03:15:21,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:15:21,377 INFO L462 AbstractCegarLoop]: Abstraction has 682 states and 824 transitions. [2019-10-15 03:15:21,377 INFO L463 AbstractCegarLoop]: Interpolant automaton has 21 states. [2019-10-15 03:15:21,377 INFO L276 IsEmpty]: Start isEmpty. Operand 682 states and 824 transitions. [2019-10-15 03:15:21,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2019-10-15 03:15:21,382 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:21,382 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:15:21,382 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:21,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:21,383 INFO L82 PathProgramCache]: Analyzing trace with hash 1753159880, now seen corresponding path program 1 times [2019-10-15 03:15:21,383 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:21,383 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163353241] [2019-10-15 03:15:21,383 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:21,384 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:21,384 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:21,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:21,999 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 03:15:21,999 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163353241] [2019-10-15 03:15:22,000 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:15:22,000 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2019-10-15 03:15:22,000 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734597743] [2019-10-15 03:15:22,001 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2019-10-15 03:15:22,001 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:15:22,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2019-10-15 03:15:22,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=453, Unknown=0, NotChecked=0, Total=506 [2019-10-15 03:15:22,002 INFO L87 Difference]: Start difference. First operand 682 states and 824 transitions. Second operand 23 states. [2019-10-15 03:15:23,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:15:23,723 INFO L93 Difference]: Finished difference Result 760 states and 910 transitions. [2019-10-15 03:15:23,723 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2019-10-15 03:15:23,724 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 145 [2019-10-15 03:15:23,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:15:23,729 INFO L225 Difference]: With dead ends: 760 [2019-10-15 03:15:23,729 INFO L226 Difference]: Without dead ends: 753 [2019-10-15 03:15:23,731 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 369 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=213, Invalid=1949, Unknown=0, NotChecked=0, Total=2162 [2019-10-15 03:15:23,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 753 states. [2019-10-15 03:15:23,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 753 to 746. [2019-10-15 03:15:23,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 746 states. [2019-10-15 03:15:23,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 746 states to 746 states and 895 transitions. [2019-10-15 03:15:23,774 INFO L78 Accepts]: Start accepts. Automaton has 746 states and 895 transitions. Word has length 145 [2019-10-15 03:15:23,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:15:23,775 INFO L462 AbstractCegarLoop]: Abstraction has 746 states and 895 transitions. [2019-10-15 03:15:23,775 INFO L463 AbstractCegarLoop]: Interpolant automaton has 23 states. [2019-10-15 03:15:23,775 INFO L276 IsEmpty]: Start isEmpty. Operand 746 states and 895 transitions. [2019-10-15 03:15:23,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2019-10-15 03:15:23,780 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:23,781 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-10-15 03:15:23,781 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:23,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:23,781 INFO L82 PathProgramCache]: Analyzing trace with hash 483975670, now seen corresponding path program 1 times [2019-10-15 03:15:23,782 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:23,782 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967552759] [2019-10-15 03:15:23,782 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:23,782 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:23,782 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:23,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:24,069 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 03:15:24,070 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967552759] [2019-10-15 03:15:24,070 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:15:24,071 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-15 03:15:24,071 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992273327] [2019-10-15 03:15:24,072 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-15 03:15:24,072 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:15:24,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-15 03:15:24,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-15 03:15:24,073 INFO L87 Difference]: Start difference. First operand 746 states and 895 transitions. Second operand 8 states. [2019-10-15 03:15:24,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:15:24,136 INFO L93 Difference]: Finished difference Result 1213 states and 1439 transitions. [2019-10-15 03:15:24,136 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 03:15:24,137 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 243 [2019-10-15 03:15:24,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:15:24,141 INFO L225 Difference]: With dead ends: 1213 [2019-10-15 03:15:24,141 INFO L226 Difference]: Without dead ends: 746 [2019-10-15 03:15:24,143 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-15 03:15:24,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2019-10-15 03:15:24,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 746. [2019-10-15 03:15:24,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 746 states. [2019-10-15 03:15:24,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 746 states to 746 states and 893 transitions. [2019-10-15 03:15:24,190 INFO L78 Accepts]: Start accepts. Automaton has 746 states and 893 transitions. Word has length 243 [2019-10-15 03:15:24,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:15:24,194 INFO L462 AbstractCegarLoop]: Abstraction has 746 states and 893 transitions. [2019-10-15 03:15:24,195 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-15 03:15:24,195 INFO L276 IsEmpty]: Start isEmpty. Operand 746 states and 893 transitions. [2019-10-15 03:15:24,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2019-10-15 03:15:24,205 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:24,205 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:15:24,206 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:24,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:24,211 INFO L82 PathProgramCache]: Analyzing trace with hash 131809285, now seen corresponding path program 1 times [2019-10-15 03:15:24,212 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:24,212 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146293276] [2019-10-15 03:15:24,212 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:24,213 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:24,213 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:24,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:24,656 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-10-15 03:15:24,657 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146293276] [2019-10-15 03:15:24,657 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:15:24,658 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-15 03:15:24,658 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123944270] [2019-10-15 03:15:24,660 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-15 03:15:24,661 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:15:24,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-15 03:15:24,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2019-10-15 03:15:24,662 INFO L87 Difference]: Start difference. First operand 746 states and 893 transitions. Second operand 11 states. [2019-10-15 03:15:27,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:15:27,599 INFO L93 Difference]: Finished difference Result 1492 states and 1744 transitions. [2019-10-15 03:15:27,600 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-15 03:15:27,600 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 248 [2019-10-15 03:15:27,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:15:27,607 INFO L225 Difference]: With dead ends: 1492 [2019-10-15 03:15:27,607 INFO L226 Difference]: Without dead ends: 1097 [2019-10-15 03:15:27,609 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2019-10-15 03:15:27,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1097 states. [2019-10-15 03:15:27,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1097 to 1069. [2019-10-15 03:15:27,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1069 states. [2019-10-15 03:15:27,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1069 states to 1069 states and 1259 transitions. [2019-10-15 03:15:27,668 INFO L78 Accepts]: Start accepts. Automaton has 1069 states and 1259 transitions. Word has length 248 [2019-10-15 03:15:27,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:15:27,670 INFO L462 AbstractCegarLoop]: Abstraction has 1069 states and 1259 transitions. [2019-10-15 03:15:27,670 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-15 03:15:27,670 INFO L276 IsEmpty]: Start isEmpty. Operand 1069 states and 1259 transitions. [2019-10-15 03:15:27,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2019-10-15 03:15:27,680 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:27,680 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-10-15 03:15:27,681 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:27,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:27,681 INFO L82 PathProgramCache]: Analyzing trace with hash 1267936086, now seen corresponding path program 1 times [2019-10-15 03:15:27,682 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:27,682 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864402785] [2019-10-15 03:15:27,682 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:27,683 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:27,683 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:27,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:29,107 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 9 proven. 12 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-10-15 03:15:29,108 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864402785] [2019-10-15 03:15:29,108 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [117789871] [2019-10-15 03:15:29,108 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:15:29,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:29,699 INFO L256 TraceCheckSpWp]: Trace formula consists of 3324 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-15 03:15:29,777 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:15:29,937 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2019-10-15 03:15:29,937 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:15:30,573 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-10-15 03:15:30,574 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [597110078] [2019-10-15 03:15:30,603 INFO L162 IcfgInterpreter]: Started Sifa with 210 locations of interest [2019-10-15 03:15:30,603 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 03:15:30,610 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 03:15:30,617 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 03:15:30,617 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs