java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/email_spec8_product29.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 15:07:49,306 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 15:07:49,308 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 15:07:49,323 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 15:07:49,323 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 15:07:49,324 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 15:07:49,326 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 15:07:49,328 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 15:07:49,329 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 15:07:49,330 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 15:07:49,331 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 15:07:49,333 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 15:07:49,333 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 15:07:49,334 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 15:07:49,335 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 15:07:49,336 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 15:07:49,337 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 15:07:49,338 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 15:07:49,340 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 15:07:49,342 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 15:07:49,344 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 15:07:49,345 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 15:07:49,346 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 15:07:49,347 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 15:07:49,349 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 15:07:49,350 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 15:07:49,350 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 15:07:49,351 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 15:07:49,351 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 15:07:49,352 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 15:07:49,353 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 15:07:49,354 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 15:07:49,354 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 15:07:49,355 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 15:07:49,356 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 15:07:49,356 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 15:07:49,357 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 15:07:49,357 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 15:07:49,357 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 15:07:49,358 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 15:07:49,359 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 15:07:49,360 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 15:07:49,375 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 15:07:49,375 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 15:07:49,376 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 15:07:49,376 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 15:07:49,377 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 15:07:49,377 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 15:07:49,377 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 15:07:49,377 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 15:07:49,377 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 15:07:49,378 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 15:07:49,378 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 15:07:49,378 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 15:07:49,378 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 15:07:49,378 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 15:07:49,379 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 15:07:49,379 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 15:07:49,379 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 15:07:49,379 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 15:07:49,379 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 15:07:49,380 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 15:07:49,380 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 15:07:49,380 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 15:07:49,380 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 15:07:49,380 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 15:07:49,381 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 15:07:49,381 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 15:07:49,381 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 15:07:49,381 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 15:07:49,381 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 15:07:49,683 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 15:07:49,696 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 15:07:49,700 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 15:07:49,701 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 15:07:49,701 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 15:07:49,702 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec8_product29.cil.c [2019-10-07 15:07:49,781 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20af6697c/6bbafaf32ff04abfb557782a35fa4c4f/FLAGd4d094eae [2019-10-07 15:07:50,469 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 15:07:50,470 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec8_product29.cil.c [2019-10-07 15:07:50,502 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20af6697c/6bbafaf32ff04abfb557782a35fa4c4f/FLAGd4d094eae [2019-10-07 15:07:50,627 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20af6697c/6bbafaf32ff04abfb557782a35fa4c4f [2019-10-07 15:07:50,637 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 15:07:50,638 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 15:07:50,639 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 15:07:50,639 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 15:07:50,642 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 15:07:50,642 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:07:50" (1/1) ... [2019-10-07 15:07:50,645 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@174a7eba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:07:50, skipping insertion in model container [2019-10-07 15:07:50,645 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:07:50" (1/1) ... [2019-10-07 15:07:50,653 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 15:07:50,735 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 15:07:51,528 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:07:51,567 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 15:07:51,809 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:07:51,898 INFO L192 MainTranslator]: Completed translation [2019-10-07 15:07:51,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:07:51 WrapperNode [2019-10-07 15:07:51,899 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 15:07:51,900 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 15:07:51,900 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 15:07:51,900 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 15:07:51,915 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:07:51" (1/1) ... [2019-10-07 15:07:51,915 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:07:51" (1/1) ... [2019-10-07 15:07:51,968 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:07:51" (1/1) ... [2019-10-07 15:07:51,969 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:07:51" (1/1) ... [2019-10-07 15:07:52,048 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:07:51" (1/1) ... [2019-10-07 15:07:52,089 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:07:51" (1/1) ... [2019-10-07 15:07:52,118 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:07:51" (1/1) ... [2019-10-07 15:07:52,151 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 15:07:52,152 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 15:07:52,152 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 15:07:52,153 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 15:07:52,157 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:07:51" (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 15:07:52,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 15:07:52,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 15:07:52,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 15:07:52,232 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-07 15:07:52,232 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-07 15:07:52,232 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-07 15:07:52,232 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-07 15:07:52,233 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-07 15:07:52,233 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-07 15:07:52,233 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-07 15:07:52,233 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-07 15:07:52,234 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-07 15:07:52,234 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-07 15:07:52,234 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-07 15:07:52,234 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-07 15:07:52,234 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-07 15:07:52,235 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-07 15:07:52,235 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-07 15:07:52,235 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-07 15:07:52,235 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-07 15:07:52,236 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-07 15:07:52,236 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-07 15:07:52,236 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-07 15:07:52,236 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-07 15:07:52,237 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 15:07:52,237 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 15:07:52,237 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 15:07:52,237 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 15:07:52,237 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-07 15:07:52,237 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-07 15:07:52,238 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-07 15:07:52,238 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-07 15:07:52,238 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-07 15:07:52,238 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-07 15:07:52,238 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-07 15:07:52,238 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-07 15:07:52,238 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptAutoResponder_spec__1 [2019-10-07 15:07:52,239 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptAutoResponder_spec__2 [2019-10-07 15:07:52,239 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 15:07:52,239 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 15:07:52,239 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 15:07:52,239 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 15:07:52,239 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 15:07:52,239 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 15:07:52,240 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-07 15:07:52,240 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 15:07:52,240 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 15:07:52,240 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-07 15:07:52,240 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-07 15:07:52,240 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-07 15:07:52,240 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-07 15:07:52,241 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-07 15:07:52,241 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-07 15:07:52,241 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-07 15:07:52,241 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-07 15:07:52,241 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-07 15:07:52,241 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-07 15:07:52,241 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-07 15:07:52,242 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-07 15:07:52,242 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-07 15:07:52,242 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-07 15:07:52,242 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-07 15:07:52,242 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-07 15:07:52,242 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-07 15:07:52,243 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-07 15:07:52,243 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-07 15:07:52,243 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-07 15:07:52,243 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-07 15:07:52,243 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-07 15:07:52,243 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-07 15:07:52,243 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-07 15:07:52,244 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-07 15:07:52,244 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-07 15:07:52,244 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-07 15:07:52,244 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-07 15:07:52,244 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 15:07:52,244 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 15:07:52,245 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-07 15:07:52,245 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-07 15:07:52,245 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-07 15:07:52,245 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-07 15:07:52,245 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-07 15:07:52,245 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-07 15:07:52,246 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-07 15:07:52,246 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-07 15:07:52,246 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-07 15:07:52,246 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-07 15:07:52,246 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-07 15:07:52,246 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-07 15:07:52,246 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-07 15:07:52,247 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-07 15:07:52,247 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-07 15:07:52,247 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-07 15:07:52,247 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-07 15:07:52,247 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-07 15:07:52,247 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-07 15:07:52,247 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-07 15:07:52,248 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-07 15:07:52,248 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-07 15:07:52,248 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-07 15:07:52,248 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-07 15:07:52,248 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-07 15:07:52,248 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-07 15:07:52,248 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-07 15:07:52,249 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-07 15:07:52,249 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-07 15:07:52,249 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-07 15:07:52,249 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-07 15:07:52,249 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-07 15:07:52,249 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-07 15:07:52,249 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-07 15:07:52,250 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-07 15:07:52,250 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-07 15:07:52,250 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-07 15:07:52,250 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-07 15:07:52,250 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-07 15:07:52,250 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 15:07:52,251 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 15:07:52,251 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-07 15:07:52,251 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-07 15:07:52,251 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-07 15:07:52,251 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-07 15:07:52,251 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-07 15:07:52,251 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-07 15:07:52,252 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-07 15:07:52,252 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-07 15:07:52,252 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-07 15:07:52,252 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-07 15:07:52,252 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-07 15:07:52,252 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-07 15:07:52,253 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-07 15:07:52,253 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-07 15:07:52,253 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-07 15:07:52,253 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-07 15:07:52,253 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-07 15:07:52,253 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-07 15:07:52,254 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-07 15:07:52,254 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-07 15:07:52,254 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-07 15:07:52,254 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 15:07:52,254 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 15:07:52,254 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 15:07:52,254 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 15:07:52,255 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 15:07:52,255 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-07 15:07:52,255 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-07 15:07:52,255 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-07 15:07:52,255 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-07 15:07:52,255 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-07 15:07:52,256 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 15:07:52,256 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-07 15:07:52,256 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-07 15:07:52,256 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-07 15:07:52,256 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 15:07:52,256 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-07 15:07:52,256 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptAutoResponder_spec__1 [2019-10-07 15:07:52,257 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptAutoResponder_spec__2 [2019-10-07 15:07:52,257 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 15:07:52,257 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 15:07:52,257 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 15:07:52,257 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 15:07:52,257 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 15:07:52,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 15:07:52,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 15:07:52,258 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 15:07:52,258 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 15:07:52,258 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 15:07:52,258 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 15:07:52,258 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 15:07:52,258 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 15:07:52,258 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 15:07:52,259 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 15:07:52,259 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 15:07:52,259 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-07 15:07:52,259 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-07 15:07:52,259 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-07 15:07:52,259 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-07 15:07:52,259 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-07 15:07:52,259 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-07 15:07:52,260 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-07 15:07:52,260 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-07 15:07:52,260 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-07 15:07:52,260 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-07 15:07:52,260 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 15:07:52,260 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-07 15:07:52,260 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-07 15:07:52,261 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-07 15:07:52,261 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-07 15:07:52,261 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-07 15:07:52,261 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-07 15:07:52,261 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-07 15:07:52,261 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-07 15:07:52,261 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-07 15:07:52,262 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-07 15:07:52,262 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-07 15:07:52,262 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-07 15:07:52,262 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-07 15:07:52,262 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-07 15:07:52,262 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-07 15:07:52,262 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-07 15:07:52,263 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-07 15:07:52,263 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-07 15:07:52,263 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-07 15:07:52,263 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-07 15:07:52,263 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-07 15:07:52,263 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-07 15:07:52,263 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-07 15:07:52,264 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-07 15:07:52,264 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-07 15:07:52,264 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-07 15:07:52,264 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-07 15:07:52,264 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-07 15:07:52,264 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-07 15:07:52,265 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-07 15:07:52,265 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-07 15:07:52,265 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-07 15:07:52,265 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-07 15:07:52,265 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-07 15:07:52,266 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-07 15:07:52,266 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-07 15:07:52,266 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-07 15:07:52,266 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-07 15:07:52,266 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-07 15:07:52,266 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-07 15:07:52,267 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 15:07:52,267 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 15:07:52,267 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-07 15:07:52,267 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-07 15:07:52,267 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-07 15:07:52,267 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-07 15:07:52,268 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-07 15:07:52,268 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-07 15:07:52,268 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-07 15:07:52,268 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-07 15:07:52,268 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-07 15:07:52,268 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-07 15:07:52,269 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-07 15:07:52,269 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-07 15:07:52,269 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-07 15:07:52,269 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-07 15:07:52,269 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-07 15:07:52,269 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-07 15:07:52,270 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-07 15:07:52,270 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-07 15:07:52,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 15:07:52,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 15:07:52,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 15:07:56,966 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 15:07:56,967 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-07 15:07:56,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:07:56 BoogieIcfgContainer [2019-10-07 15:07:56,969 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 15:07:56,970 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 15:07:56,970 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 15:07:56,973 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 15:07:56,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 03:07:50" (1/3) ... [2019-10-07 15:07:56,974 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@199c393a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:07:56, skipping insertion in model container [2019-10-07 15:07:56,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:07:51" (2/3) ... [2019-10-07 15:07:56,975 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@199c393a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:07:56, skipping insertion in model container [2019-10-07 15:07:56,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:07:56" (3/3) ... [2019-10-07 15:07:56,977 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec8_product29.cil.c [2019-10-07 15:07:56,987 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 15:07:56,996 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 15:07:57,008 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 15:07:57,048 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 15:07:57,048 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 15:07:57,048 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 15:07:57,049 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 15:07:57,049 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 15:07:57,049 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 15:07:57,050 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 15:07:57,050 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 15:07:57,090 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states. [2019-10-07 15:07:57,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2019-10-07 15:07:57,120 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:07:57,122 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 15:07:57,123 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:07:57,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:07:57,129 INFO L82 PathProgramCache]: Analyzing trace with hash -929806989, now seen corresponding path program 1 times [2019-10-07 15:07:57,138 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:07:57,139 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:07:57,139 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:07:57,139 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:07:57,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:07:57,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:07:57,820 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 15:07:57,821 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:07:57,821 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:07:57,822 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 15:07:57,828 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 15:07:57,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 15:07:57,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 15:07:57,846 INFO L87 Difference]: Start difference. First operand 421 states. Second operand 2 states. [2019-10-07 15:07:57,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:07:57,932 INFO L93 Difference]: Finished difference Result 589 states and 705 transitions. [2019-10-07 15:07:57,932 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 15:07:57,933 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 132 [2019-10-07 15:07:57,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:07:57,954 INFO L225 Difference]: With dead ends: 589 [2019-10-07 15:07:57,954 INFO L226 Difference]: Without dead ends: 373 [2019-10-07 15:07:57,960 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 15:07:57,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2019-10-07 15:07:58,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 373. [2019-10-07 15:07:58,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 373 states. [2019-10-07 15:07:58,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 443 transitions. [2019-10-07 15:07:58,089 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 443 transitions. Word has length 132 [2019-10-07 15:07:58,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:07:58,091 INFO L462 AbstractCegarLoop]: Abstraction has 373 states and 443 transitions. [2019-10-07 15:07:58,091 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 15:07:58,091 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 443 transitions. [2019-10-07 15:07:58,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2019-10-07 15:07:58,096 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:07:58,096 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 15:07:58,096 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:07:58,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:07:58,097 INFO L82 PathProgramCache]: Analyzing trace with hash -708587585, now seen corresponding path program 1 times [2019-10-07 15:07:58,097 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:07:58,097 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:07:58,098 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:07:58,098 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:07:58,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:07:58,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:07:58,421 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 15:07:58,423 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:07:58,424 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:07:58,424 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:07:58,432 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:07:58,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:07:58,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:07:58,433 INFO L87 Difference]: Start difference. First operand 373 states and 443 transitions. Second operand 3 states. [2019-10-07 15:07:58,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:07:58,486 INFO L93 Difference]: Finished difference Result 574 states and 673 transitions. [2019-10-07 15:07:58,487 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:07:58,487 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 133 [2019-10-07 15:07:58,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:07:58,491 INFO L225 Difference]: With dead ends: 574 [2019-10-07 15:07:58,491 INFO L226 Difference]: Without dead ends: 375 [2019-10-07 15:07:58,494 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 15:07:58,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2019-10-07 15:07:58,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 375. [2019-10-07 15:07:58,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 375 states. [2019-10-07 15:07:58,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 445 transitions. [2019-10-07 15:07:58,570 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 445 transitions. Word has length 133 [2019-10-07 15:07:58,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:07:58,570 INFO L462 AbstractCegarLoop]: Abstraction has 375 states and 445 transitions. [2019-10-07 15:07:58,571 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:07:58,571 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 445 transitions. [2019-10-07 15:07:58,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2019-10-07 15:07:58,574 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:07:58,574 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] [2019-10-07 15:07:58,575 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:07:58,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:07:58,575 INFO L82 PathProgramCache]: Analyzing trace with hash 1229602126, now seen corresponding path program 1 times [2019-10-07 15:07:58,575 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:07:58,575 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:07:58,576 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:07:58,576 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:07:58,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:07:58,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:07:58,783 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 15:07:58,784 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:07:58,784 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:07:58,784 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:07:58,786 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:07:58,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:07:58,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:07:58,787 INFO L87 Difference]: Start difference. First operand 375 states and 445 transitions. Second operand 3 states. [2019-10-07 15:07:58,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:07:58,836 INFO L93 Difference]: Finished difference Result 732 states and 897 transitions. [2019-10-07 15:07:58,836 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:07:58,836 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 138 [2019-10-07 15:07:58,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:07:58,844 INFO L225 Difference]: With dead ends: 732 [2019-10-07 15:07:58,845 INFO L226 Difference]: Without dead ends: 415 [2019-10-07 15:07:58,846 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 15:07:58,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2019-10-07 15:07:58,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 414. [2019-10-07 15:07:58,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 414 states. [2019-10-07 15:07:58,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 513 transitions. [2019-10-07 15:07:58,867 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 513 transitions. Word has length 138 [2019-10-07 15:07:58,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:07:58,867 INFO L462 AbstractCegarLoop]: Abstraction has 414 states and 513 transitions. [2019-10-07 15:07:58,867 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:07:58,867 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 513 transitions. [2019-10-07 15:07:58,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2019-10-07 15:07:58,870 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:07:58,871 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] [2019-10-07 15:07:58,871 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:07:58,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:07:58,871 INFO L82 PathProgramCache]: Analyzing trace with hash 1480215047, now seen corresponding path program 1 times [2019-10-07 15:07:58,872 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:07:58,872 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:07:58,872 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:07:58,872 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:07:58,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:07:58,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:07:59,089 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 15:07:59,090 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:07:59,090 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:07:59,091 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:07:59,093 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:07:59,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:07:59,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:07:59,095 INFO L87 Difference]: Start difference. First operand 414 states and 513 transitions. Second operand 3 states. [2019-10-07 15:07:59,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:07:59,165 INFO L93 Difference]: Finished difference Result 682 states and 827 transitions. [2019-10-07 15:07:59,165 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:07:59,165 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 139 [2019-10-07 15:07:59,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:07:59,170 INFO L225 Difference]: With dead ends: 682 [2019-10-07 15:07:59,170 INFO L226 Difference]: Without dead ends: 495 [2019-10-07 15:07:59,172 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 15:07:59,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2019-10-07 15:07:59,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 494. [2019-10-07 15:07:59,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 494 states. [2019-10-07 15:07:59,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 604 transitions. [2019-10-07 15:07:59,228 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 604 transitions. Word has length 139 [2019-10-07 15:07:59,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:07:59,230 INFO L462 AbstractCegarLoop]: Abstraction has 494 states and 604 transitions. [2019-10-07 15:07:59,230 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:07:59,230 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 604 transitions. [2019-10-07 15:07:59,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2019-10-07 15:07:59,238 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:07:59,239 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] [2019-10-07 15:07:59,239 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:07:59,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:07:59,240 INFO L82 PathProgramCache]: Analyzing trace with hash 483835265, now seen corresponding path program 1 times [2019-10-07 15:07:59,240 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:07:59,240 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:07:59,241 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:07:59,241 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:07:59,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:07:59,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:07:59,910 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 15:07:59,910 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:07:59,910 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:07:59,911 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2019-10-07 15:07:59,912 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-07 15:07:59,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-07 15:07:59,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2019-10-07 15:07:59,913 INFO L87 Difference]: Start difference. First operand 494 states and 604 transitions. Second operand 14 states. [2019-10-07 15:08:03,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:08:03,426 INFO L93 Difference]: Finished difference Result 1153 states and 1399 transitions. [2019-10-07 15:08:03,426 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-07 15:08:03,427 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 241 [2019-10-07 15:08:03,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:08:03,434 INFO L225 Difference]: With dead ends: 1153 [2019-10-07 15:08:03,434 INFO L226 Difference]: Without dead ends: 908 [2019-10-07 15:08:03,436 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=119, Invalid=531, Unknown=0, NotChecked=0, Total=650 [2019-10-07 15:08:03,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 908 states. [2019-10-07 15:08:03,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 908 to 899. [2019-10-07 15:08:03,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 899 states. [2019-10-07 15:08:03,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 899 states to 899 states and 1108 transitions. [2019-10-07 15:08:03,489 INFO L78 Accepts]: Start accepts. Automaton has 899 states and 1108 transitions. Word has length 241 [2019-10-07 15:08:03,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:08:03,489 INFO L462 AbstractCegarLoop]: Abstraction has 899 states and 1108 transitions. [2019-10-07 15:08:03,489 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-07 15:08:03,490 INFO L276 IsEmpty]: Start isEmpty. Operand 899 states and 1108 transitions. [2019-10-07 15:08:03,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2019-10-07 15:08:03,496 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:08:03,496 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] [2019-10-07 15:08:03,497 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:08:03,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:08:03,497 INFO L82 PathProgramCache]: Analyzing trace with hash -204967358, now seen corresponding path program 1 times [2019-10-07 15:08:03,497 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:08:03,497 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:08:03,498 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:08:03,498 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:08:03,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:08:03,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:08:03,762 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 15:08:03,763 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:08:03,763 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:08:03,763 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:08:03,764 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:08:03,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:08:03,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:08:03,765 INFO L87 Difference]: Start difference. First operand 899 states and 1108 transitions. Second operand 3 states. [2019-10-07 15:08:03,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:08:03,814 INFO L93 Difference]: Finished difference Result 1896 states and 2425 transitions. [2019-10-07 15:08:03,814 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:08:03,814 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 263 [2019-10-07 15:08:03,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:08:03,824 INFO L225 Difference]: With dead ends: 1896 [2019-10-07 15:08:03,824 INFO L226 Difference]: Without dead ends: 1055 [2019-10-07 15:08:03,827 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 15:08:03,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1055 states. [2019-10-07 15:08:03,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1055 to 1053. [2019-10-07 15:08:03,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1053 states. [2019-10-07 15:08:03,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1053 states to 1053 states and 1374 transitions. [2019-10-07 15:08:03,898 INFO L78 Accepts]: Start accepts. Automaton has 1053 states and 1374 transitions. Word has length 263 [2019-10-07 15:08:03,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:08:03,899 INFO L462 AbstractCegarLoop]: Abstraction has 1053 states and 1374 transitions. [2019-10-07 15:08:03,899 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:08:03,899 INFO L276 IsEmpty]: Start isEmpty. Operand 1053 states and 1374 transitions. [2019-10-07 15:08:03,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2019-10-07 15:08:03,906 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:08:03,907 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] [2019-10-07 15:08:03,907 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:08:03,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:08:03,907 INFO L82 PathProgramCache]: Analyzing trace with hash 1684471433, now seen corresponding path program 1 times [2019-10-07 15:08:03,908 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:08:03,908 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:08:03,908 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:08:03,908 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:08:03,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:08:03,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:08:04,185 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 15:08:04,186 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:08:04,187 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:08:04,187 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:08:04,188 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:08:04,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:08:04,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:08:04,190 INFO L87 Difference]: Start difference. First operand 1053 states and 1374 transitions. Second operand 3 states. [2019-10-07 15:08:04,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:08:04,259 INFO L93 Difference]: Finished difference Result 2338 states and 3191 transitions. [2019-10-07 15:08:04,263 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:08:04,264 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 264 [2019-10-07 15:08:04,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:08:04,274 INFO L225 Difference]: With dead ends: 2338 [2019-10-07 15:08:04,274 INFO L226 Difference]: Without dead ends: 1343 [2019-10-07 15:08:04,281 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 15:08:04,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1343 states. [2019-10-07 15:08:04,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1343 to 1341. [2019-10-07 15:08:04,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1341 states. [2019-10-07 15:08:04,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1341 states to 1341 states and 1870 transitions. [2019-10-07 15:08:04,430 INFO L78 Accepts]: Start accepts. Automaton has 1341 states and 1870 transitions. Word has length 264 [2019-10-07 15:08:04,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:08:04,433 INFO L462 AbstractCegarLoop]: Abstraction has 1341 states and 1870 transitions. [2019-10-07 15:08:04,433 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:08:04,433 INFO L276 IsEmpty]: Start isEmpty. Operand 1341 states and 1870 transitions. [2019-10-07 15:08:04,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2019-10-07 15:08:04,443 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:08:04,444 INFO L385 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:08:04,444 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:08:04,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:08:04,445 INFO L82 PathProgramCache]: Analyzing trace with hash 1071701155, now seen corresponding path program 1 times [2019-10-07 15:08:04,445 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:08:04,445 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:08:04,445 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:08:04,446 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:08:04,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:08:04,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:08:04,697 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2019-10-07 15:08:04,698 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:08:04,698 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:08:04,699 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:08:04,701 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:08:04,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:08:04,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:08:04,702 INFO L87 Difference]: Start difference. First operand 1341 states and 1870 transitions. Second operand 3 states. [2019-10-07 15:08:04,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:08:04,841 INFO L93 Difference]: Finished difference Result 3178 states and 4639 transitions. [2019-10-07 15:08:04,841 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:08:04,841 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 270 [2019-10-07 15:08:04,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:08:04,858 INFO L225 Difference]: With dead ends: 3178 [2019-10-07 15:08:04,859 INFO L226 Difference]: Without dead ends: 1895 [2019-10-07 15:08:04,866 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 15:08:04,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1895 states. [2019-10-07 15:08:05,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1895 to 1893. [2019-10-07 15:08:05,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1893 states. [2019-10-07 15:08:05,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1893 states to 1893 states and 2814 transitions. [2019-10-07 15:08:05,023 INFO L78 Accepts]: Start accepts. Automaton has 1893 states and 2814 transitions. Word has length 270 [2019-10-07 15:08:05,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:08:05,023 INFO L462 AbstractCegarLoop]: Abstraction has 1893 states and 2814 transitions. [2019-10-07 15:08:05,023 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:08:05,024 INFO L276 IsEmpty]: Start isEmpty. Operand 1893 states and 2814 transitions. [2019-10-07 15:08:05,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2019-10-07 15:08:05,037 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:08:05,037 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] [2019-10-07 15:08:05,038 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:08:05,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:08:05,038 INFO L82 PathProgramCache]: Analyzing trace with hash -6325175, now seen corresponding path program 1 times [2019-10-07 15:08:05,038 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:08:05,038 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:08:05,039 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:08:05,039 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:08:05,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:08:05,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:08:05,340 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 15:08:05,340 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:08:05,341 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:08:05,341 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:08:05,342 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:08:05,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:08:05,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:08:05,342 INFO L87 Difference]: Start difference. First operand 1893 states and 2814 transitions. Second operand 3 states. [2019-10-07 15:08:05,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:08:05,477 INFO L93 Difference]: Finished difference Result 4786 states and 7391 transitions. [2019-10-07 15:08:05,477 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:08:05,477 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 266 [2019-10-07 15:08:05,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:08:05,502 INFO L225 Difference]: With dead ends: 4786 [2019-10-07 15:08:05,502 INFO L226 Difference]: Without dead ends: 2951 [2019-10-07 15:08:05,512 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 15:08:05,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2951 states. [2019-10-07 15:08:05,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2951 to 2949. [2019-10-07 15:08:05,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2949 states. [2019-10-07 15:08:05,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2949 states to 2949 states and 4606 transitions. [2019-10-07 15:08:05,688 INFO L78 Accepts]: Start accepts. Automaton has 2949 states and 4606 transitions. Word has length 266 [2019-10-07 15:08:05,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:08:05,688 INFO L462 AbstractCegarLoop]: Abstraction has 2949 states and 4606 transitions. [2019-10-07 15:08:05,688 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:08:05,688 INFO L276 IsEmpty]: Start isEmpty. Operand 2949 states and 4606 transitions. [2019-10-07 15:08:05,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2019-10-07 15:08:05,707 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:08:05,707 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] [2019-10-07 15:08:05,707 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:08:05,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:08:05,708 INFO L82 PathProgramCache]: Analyzing trace with hash -998422844, now seen corresponding path program 1 times [2019-10-07 15:08:05,708 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:08:05,708 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:08:05,708 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:08:05,709 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:08:05,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:08:05,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:08:05,940 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 15:08:05,941 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:08:05,941 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:08:05,941 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:08:05,942 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:08:05,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:08:05,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:08:05,942 INFO L87 Difference]: Start difference. First operand 2949 states and 4606 transitions. Second operand 3 states. [2019-10-07 15:08:06,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:08:06,207 INFO L93 Difference]: Finished difference Result 7986 states and 12799 transitions. [2019-10-07 15:08:06,208 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:08:06,208 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 267 [2019-10-07 15:08:06,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:08:06,250 INFO L225 Difference]: With dead ends: 7986 [2019-10-07 15:08:06,250 INFO L226 Difference]: Without dead ends: 5095 [2019-10-07 15:08:06,266 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 15:08:06,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5095 states. [2019-10-07 15:08:06,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5095 to 5093. [2019-10-07 15:08:06,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5093 states. [2019-10-07 15:08:06,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5093 states to 5093 states and 8190 transitions. [2019-10-07 15:08:06,629 INFO L78 Accepts]: Start accepts. Automaton has 5093 states and 8190 transitions. Word has length 267 [2019-10-07 15:08:06,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:08:06,629 INFO L462 AbstractCegarLoop]: Abstraction has 5093 states and 8190 transitions. [2019-10-07 15:08:06,629 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:08:06,630 INFO L276 IsEmpty]: Start isEmpty. Operand 5093 states and 8190 transitions. [2019-10-07 15:08:06,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2019-10-07 15:08:06,662 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:08:06,663 INFO L385 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:08:06,663 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:08:06,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:08:06,663 INFO L82 PathProgramCache]: Analyzing trace with hash 159921546, now seen corresponding path program 1 times [2019-10-07 15:08:06,664 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:08:06,664 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:08:06,664 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:08:06,664 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:08:06,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:08:06,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:08:06,902 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2019-10-07 15:08:06,902 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:08:06,903 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:08:06,903 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:08:06,903 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:08:06,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:08:06,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:08:06,904 INFO L87 Difference]: Start difference. First operand 5093 states and 8190 transitions. Second operand 3 states. [2019-10-07 15:08:07,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:08:07,349 INFO L93 Difference]: Finished difference Result 14098 states and 23039 transitions. [2019-10-07 15:08:07,349 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:08:07,349 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 273 [2019-10-07 15:08:07,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:08:07,415 INFO L225 Difference]: With dead ends: 14098 [2019-10-07 15:08:07,415 INFO L226 Difference]: Without dead ends: 9063 [2019-10-07 15:08:07,434 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 15:08:07,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9063 states. [2019-10-07 15:08:07,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9063 to 9061. [2019-10-07 15:08:07,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9061 states. [2019-10-07 15:08:07,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9061 states to 9061 states and 14782 transitions. [2019-10-07 15:08:07,874 INFO L78 Accepts]: Start accepts. Automaton has 9061 states and 14782 transitions. Word has length 273 [2019-10-07 15:08:07,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:08:07,874 INFO L462 AbstractCegarLoop]: Abstraction has 9061 states and 14782 transitions. [2019-10-07 15:08:07,874 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:08:07,875 INFO L276 IsEmpty]: Start isEmpty. Operand 9061 states and 14782 transitions. [2019-10-07 15:08:07,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2019-10-07 15:08:07,933 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:08:07,933 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] [2019-10-07 15:08:07,934 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:08:07,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:08:07,934 INFO L82 PathProgramCache]: Analyzing trace with hash 1198525894, now seen corresponding path program 1 times [2019-10-07 15:08:07,934 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:08:07,934 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:08:07,935 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:08:07,935 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:08:07,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:08:08,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:08:08,724 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 15:08:08,724 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:08:08,724 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 15:08:08,725 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 15:08:09,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:08:09,410 INFO L256 TraceCheckSpWp]: Trace formula consists of 3550 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 15:08:09,437 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 15:08:09,597 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 15:08:09,597 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 15:08:10,174 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 15:08:10,174 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 15:08:10,211 INFO L162 IcfgInterpreter]: Started Sifa with 216 locations of interest [2019-10-07 15:08:10,212 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 15:08:10,219 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 15:08:10,226 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 15:08:10,227 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 15:09:43,855 WARN L191 SmtUtils]: Spent 414.00 ms on a formula simplification that was a NOOP. DAG size: 722 [2019-10-07 15:09:48,728 WARN L191 SmtUtils]: Spent 1.63 s on a formula simplification. DAG size of input: 348 DAG size of output: 283 [2019-10-07 15:09:49,130 WARN L191 SmtUtils]: Spent 392.00 ms on a formula simplification that was a NOOP. DAG size: 768 [2019-10-07 15:09:49,447 WARN L191 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 768 [2019-10-07 15:09:49,670 WARN L191 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 768 [2019-10-07 15:09:49,902 WARN L191 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 15:09:50,580 WARN L191 SmtUtils]: Spent 676.00 ms on a formula simplification that was a NOOP. DAG size: 1072 [2019-10-07 15:09:51,352 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 1072 [2019-10-07 15:09:52,096 WARN L191 SmtUtils]: Spent 740.00 ms on a formula simplification that was a NOOP. DAG size: 1072 [2019-10-07 15:09:52,244 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 15:09:52,947 WARN L191 SmtUtils]: Spent 700.00 ms on a formula simplification that was a NOOP. DAG size: 1072 [2019-10-07 15:09:54,935 WARN L191 SmtUtils]: Spent 1.96 s on a formula simplification. DAG size of input: 1074 DAG size of output: 1072 [2019-10-07 15:09:55,604 WARN L191 SmtUtils]: Spent 665.00 ms on a formula simplification that was a NOOP. DAG size: 1072 [2019-10-07 15:09:55,752 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 15:09:56,433 WARN L191 SmtUtils]: Spent 679.00 ms on a formula simplification that was a NOOP. DAG size: 1072 [2019-10-07 15:09:57,081 WARN L191 SmtUtils]: Spent 646.00 ms on a formula simplification that was a NOOP. DAG size: 1072 [2019-10-07 15:09:57,735 WARN L191 SmtUtils]: Spent 649.00 ms on a formula simplification that was a NOOP. DAG size: 1072 [2019-10-07 15:09:57,861 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 15:09:58,537 WARN L191 SmtUtils]: Spent 674.00 ms on a formula simplification that was a NOOP. DAG size: 1072 [2019-10-07 15:09:58,563 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 580 for LOIs [2019-10-07 15:09:58,907 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 685 [2019-10-07 15:09:59,022 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 685 [2019-10-07 15:09:59,152 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 15:09:59,649 WARN L191 SmtUtils]: Spent 495.00 ms on a formula simplification that was a NOOP. DAG size: 989 [2019-10-07 15:09:59,650 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1124 for LOIs [2019-10-07 15:10:00,280 WARN L191 SmtUtils]: Spent 628.00 ms on a formula simplification that was a NOOP. DAG size: 1124 [2019-10-07 15:10:00,910 WARN L191 SmtUtils]: Spent 626.00 ms on a formula simplification that was a NOOP. DAG size: 1124 [2019-10-07 15:10:01,168 WARN L191 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 639 [2019-10-07 15:10:02,218 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1312 [2019-10-07 15:10:02,878 WARN L191 SmtUtils]: Spent 641.00 ms on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 15:10:03,508 WARN L191 SmtUtils]: Spent 626.00 ms on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 15:10:03,759 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 15:10:04,781 WARN L191 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 1318 [2019-10-07 15:10:05,447 WARN L191 SmtUtils]: Spent 634.00 ms on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 15:10:06,088 WARN L191 SmtUtils]: Spent 638.00 ms on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 15:10:06,358 WARN L191 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 15:10:07,359 WARN L191 SmtUtils]: Spent 999.00 ms on a formula simplification that was a NOOP. DAG size: 1318 [2019-10-07 15:10:08,419 WARN L191 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 1320 DAG size of output: 1130 [2019-10-07 15:10:09,049 WARN L191 SmtUtils]: Spent 626.00 ms on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 15:10:09,363 WARN L191 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 15:10:10,360 WARN L191 SmtUtils]: Spent 995.00 ms on a formula simplification that was a NOOP. DAG size: 1318 [2019-10-07 15:10:11,011 WARN L191 SmtUtils]: Spent 633.00 ms on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 15:10:11,652 WARN L191 SmtUtils]: Spent 637.00 ms on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 15:10:11,894 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 15:10:12,899 WARN L191 SmtUtils]: Spent 1.00 s on a formula simplification that was a NOOP. DAG size: 1318 [2019-10-07 15:10:13,527 WARN L191 SmtUtils]: Spent 626.00 ms on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 15:10:14,159 WARN L191 SmtUtils]: Spent 628.00 ms on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 15:10:14,451 WARN L191 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 15:10:15,445 WARN L191 SmtUtils]: Spent 991.00 ms on a formula simplification that was a NOOP. DAG size: 1318 [2019-10-07 15:10:16,071 WARN L191 SmtUtils]: Spent 623.00 ms on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 15:10:16,703 WARN L191 SmtUtils]: Spent 629.00 ms on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 15:10:16,946 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 15:10:17,967 WARN L191 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 1318 [2019-10-07 15:10:18,594 WARN L191 SmtUtils]: Spent 625.00 ms on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 15:10:19,230 WARN L191 SmtUtils]: Spent 633.00 ms on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 15:10:19,472 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 15:10:20,481 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 1318 [2019-10-07 15:10:21,115 WARN L191 SmtUtils]: Spent 630.00 ms on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 15:10:21,754 WARN L191 SmtUtils]: Spent 636.00 ms on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 15:10:22,007 WARN L191 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 15:10:23,005 WARN L191 SmtUtils]: Spent 996.00 ms on a formula simplification that was a NOOP. DAG size: 1318 [2019-10-07 15:10:23,638 WARN L191 SmtUtils]: Spent 631.00 ms on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 15:10:24,269 WARN L191 SmtUtils]: Spent 627.00 ms on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 15:10:24,511 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 15:10:25,520 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 1318 [2019-10-07 15:10:26,148 WARN L191 SmtUtils]: Spent 625.00 ms on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 15:10:26,773 WARN L191 SmtUtils]: Spent 622.00 ms on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 15:10:27,027 WARN L191 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 15:10:28,036 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 1318 [2019-10-07 15:10:28,669 WARN L191 SmtUtils]: Spent 630.00 ms on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 15:10:29,303 WARN L191 SmtUtils]: Spent 631.00 ms on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 15:10:29,544 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 15:10:30,541 WARN L191 SmtUtils]: Spent 994.00 ms on a formula simplification that was a NOOP. DAG size: 1318 [2019-10-07 15:10:31,171 WARN L191 SmtUtils]: Spent 627.00 ms on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 15:10:31,797 WARN L191 SmtUtils]: Spent 623.00 ms on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 15:10:32,045 WARN L191 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 15:10:33,051 WARN L191 SmtUtils]: Spent 1.00 s on a formula simplification that was a NOOP. DAG size: 1318 [2019-10-07 15:10:34,138 WARN L191 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 1318 [2019-10-07 15:10:35,134 WARN L191 SmtUtils]: Spent 992.00 ms on a formula simplification that was a NOOP. DAG size: 1318 [2019-10-07 15:10:35,384 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 15:10:36,379 WARN L191 SmtUtils]: Spent 992.00 ms on a formula simplification that was a NOOP. DAG size: 1318 [2019-10-07 15:10:38,412 WARN L191 SmtUtils]: Spent 2.01 s on a formula simplification. DAG size of input: 1320 DAG size of output: 1318 [2019-10-07 15:10:39,411 WARN L191 SmtUtils]: Spent 995.00 ms on a formula simplification that was a NOOP. DAG size: 1318 [2019-10-07 15:10:39,668 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 15:10:40,666 WARN L191 SmtUtils]: Spent 995.00 ms on a formula simplification that was a NOOP. DAG size: 1318 [2019-10-07 15:10:41,656 WARN L191 SmtUtils]: Spent 987.00 ms on a formula simplification that was a NOOP. DAG size: 1318 [2019-10-07 15:10:42,657 WARN L191 SmtUtils]: Spent 996.00 ms on a formula simplification that was a NOOP. DAG size: 1318 [2019-10-07 15:10:42,899 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 15:10:43,891 WARN L191 SmtUtils]: Spent 991.00 ms on a formula simplification that was a NOOP. DAG size: 1318 [2019-10-07 15:10:44,965 WARN L191 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 1320 [2019-10-07 15:10:45,957 WARN L191 SmtUtils]: Spent 988.00 ms on a formula simplification that was a NOOP. DAG size: 1320 [2019-10-07 15:10:46,207 WARN L191 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 648 [2019-10-07 15:10:47,212 WARN L191 SmtUtils]: Spent 1.00 s on a formula simplification that was a NOOP. DAG size: 1322 [2019-10-07 15:10:49,080 WARN L191 SmtUtils]: Spent 1.85 s on a formula simplification. DAG size of input: 1324 DAG size of output: 1322 [2019-10-07 15:10:50,087 WARN L191 SmtUtils]: Spent 1.00 s on a formula simplification that was a NOOP. DAG size: 1322 [2019-10-07 15:10:50,343 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 648 [2019-10-07 15:10:51,341 WARN L191 SmtUtils]: Spent 996.00 ms on a formula simplification that was a NOOP. DAG size: 1322 [2019-10-07 15:10:53,180 WARN L191 SmtUtils]: Spent 1.84 s on a formula simplification. DAG size of input: 1324 DAG size of output: 1320 [2019-10-07 15:10:54,175 WARN L191 SmtUtils]: Spent 991.00 ms on a formula simplification that was a NOOP. DAG size: 1320 [2019-10-07 15:10:54,419 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 648 [2019-10-07 15:10:55,416 WARN L191 SmtUtils]: Spent 994.00 ms on a formula simplification that was a NOOP. DAG size: 1322 [2019-10-07 15:10:56,423 WARN L191 SmtUtils]: Spent 997.00 ms on a formula simplification that was a NOOP. DAG size: 1320 [2019-10-07 15:10:57,418 WARN L191 SmtUtils]: Spent 991.00 ms on a formula simplification that was a NOOP. DAG size: 1320 [2019-10-07 15:10:57,670 WARN L191 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 648 [2019-10-07 15:10:58,672 WARN L191 SmtUtils]: Spent 999.00 ms on a formula simplification that was a NOOP. DAG size: 1322 [2019-10-07 15:10:59,680 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 1322 [2019-10-07 15:11:00,676 WARN L191 SmtUtils]: Spent 992.00 ms on a formula simplification that was a NOOP. DAG size: 1322 [2019-10-07 15:11:00,929 WARN L191 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 648 [2019-10-07 15:11:01,941 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 1324 [2019-10-07 15:11:04,583 WARN L191 SmtUtils]: Spent 2.59 s on a formula simplification. DAG size of input: 1320 DAG size of output: 1318 [2019-10-07 15:11:05,578 WARN L191 SmtUtils]: Spent 991.00 ms on a formula simplification that was a NOOP. DAG size: 1318 [2019-10-07 15:11:05,832 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 15:11:06,825 WARN L191 SmtUtils]: Spent 992.00 ms on a formula simplification that was a NOOP. DAG size: 1318 [2019-10-07 15:11:08,975 WARN L191 SmtUtils]: Spent 2.13 s on a formula simplification. DAG size of input: 1320 DAG size of output: 1318 [2019-10-07 15:11:09,971 WARN L191 SmtUtils]: Spent 992.00 ms on a formula simplification that was a NOOP. DAG size: 1318 [2019-10-07 15:11:10,243 WARN L191 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 15:11:11,236 WARN L191 SmtUtils]: Spent 990.00 ms on a formula simplification that was a NOOP. DAG size: 1318 [2019-10-07 15:11:12,221 WARN L191 SmtUtils]: Spent 982.00 ms on a formula simplification that was a NOOP. DAG size: 1318 [2019-10-07 15:11:13,230 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 1318 [2019-10-07 15:11:13,472 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 15:11:14,465 WARN L191 SmtUtils]: Spent 991.00 ms on a formula simplification that was a NOOP. DAG size: 1318 [2019-10-07 15:11:16,325 WARN L191 SmtUtils]: Spent 1.82 s on a formula simplification. DAG size of input: 1320 DAG size of output: 1318 [2019-10-07 15:11:17,326 WARN L191 SmtUtils]: Spent 997.00 ms on a formula simplification that was a NOOP. DAG size: 1318 [2019-10-07 15:11:17,580 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 15:11:18,572 WARN L191 SmtUtils]: Spent 990.00 ms on a formula simplification that was a NOOP. DAG size: 1318 [2019-10-07 15:11:20,402 WARN L191 SmtUtils]: Spent 1.82 s on a formula simplification. DAG size of input: 1320 DAG size of output: 1318 [2019-10-07 15:11:21,404 WARN L191 SmtUtils]: Spent 998.00 ms on a formula simplification that was a NOOP. DAG size: 1318 [2019-10-07 15:11:21,652 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 15:11:22,637 WARN L191 SmtUtils]: Spent 983.00 ms on a formula simplification that was a NOOP. DAG size: 1318 [2019-10-07 15:11:23,634 WARN L191 SmtUtils]: Spent 994.00 ms on a formula simplification that was a NOOP. DAG size: 1318 [2019-10-07 15:11:24,630 WARN L191 SmtUtils]: Spent 993.00 ms on a formula simplification that was a NOOP. DAG size: 1318 [2019-10-07 15:11:24,870 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 15:11:25,868 WARN L191 SmtUtils]: Spent 995.00 ms on a formula simplification that was a NOOP. DAG size: 1318 [2019-10-07 15:11:27,731 WARN L191 SmtUtils]: Spent 1.83 s on a formula simplification. DAG size of input: 1324 DAG size of output: 1322 [2019-10-07 15:11:28,735 WARN L191 SmtUtils]: Spent 1000.00 ms on a formula simplification that was a NOOP. DAG size: 1322 [2019-10-07 15:11:28,985 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 648 [2019-10-07 15:11:29,987 WARN L191 SmtUtils]: Spent 1000.00 ms on a formula simplification that was a NOOP. DAG size: 1322 [2019-10-07 15:11:31,740 WARN L191 SmtUtils]: Spent 1.74 s on a formula simplification. DAG size of input: 1324 DAG size of output: 1320 [2019-10-07 15:11:32,739 WARN L191 SmtUtils]: Spent 996.00 ms on a formula simplification that was a NOOP. DAG size: 1320 [2019-10-07 15:11:32,990 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 648 [2019-10-07 15:11:34,015 WARN L191 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 1322 [2019-10-07 15:11:35,840 WARN L191 SmtUtils]: Spent 1.82 s on a formula simplification. DAG size of input: 1324 DAG size of output: 1320 [2019-10-07 15:11:36,836 WARN L191 SmtUtils]: Spent 992.00 ms on a formula simplification that was a NOOP. DAG size: 1320 [2019-10-07 15:11:37,079 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 648 [2019-10-07 15:11:38,084 WARN L191 SmtUtils]: Spent 1.00 s on a formula simplification that was a NOOP. DAG size: 1322 [2019-10-07 15:11:39,838 WARN L191 SmtUtils]: Spent 1.75 s on a formula simplification. DAG size of input: 1327 DAG size of output: 1322 [2019-10-07 15:11:40,838 WARN L191 SmtUtils]: Spent 996.00 ms on a formula simplification that was a NOOP. DAG size: 1322 [2019-10-07 15:11:41,088 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 648 [2019-10-07 15:11:42,100 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 1322 [2019-10-07 15:11:43,884 WARN L191 SmtUtils]: Spent 1.78 s on a formula simplification. DAG size of input: 1329 DAG size of output: 1324 [2019-10-07 15:11:44,908 WARN L191 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 1324 [2019-10-07 15:11:45,163 WARN L191 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 648 [2019-10-07 15:11:46,187 WARN L191 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 1324 [2019-10-07 15:11:46,453 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:11:46,454 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 15:11:46,462 INFO L168 Benchmark]: Toolchain (without parser) took 235824.01 ms. Allocated memory was 137.9 MB in the beginning and 2.1 GB in the end (delta: 1.9 GB). Free memory was 98.3 MB in the beginning and 384.4 MB in the end (delta: -286.1 MB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. [2019-10-07 15:11:46,463 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 137.9 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-10-07 15:11:46,463 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1260.37 ms. Allocated memory was 137.9 MB in the beginning and 205.0 MB in the end (delta: 67.1 MB). Free memory was 98.1 MB in the beginning and 136.5 MB in the end (delta: -38.4 MB). Peak memory consumption was 33.9 MB. Max. memory is 7.1 GB. [2019-10-07 15:11:46,464 INFO L168 Benchmark]: Boogie Preprocessor took 252.28 ms. Allocated memory is still 205.0 MB. Free memory was 136.5 MB in the beginning and 127.4 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. [2019-10-07 15:11:46,465 INFO L168 Benchmark]: RCFGBuilder took 4816.43 ms. Allocated memory was 205.0 MB in the beginning and 289.9 MB in the end (delta: 84.9 MB). Free memory was 127.4 MB in the beginning and 227.4 MB in the end (delta: -100.0 MB). Peak memory consumption was 134.0 MB. Max. memory is 7.1 GB. [2019-10-07 15:11:46,465 INFO L168 Benchmark]: TraceAbstraction took 229490.89 ms. Allocated memory was 289.9 MB in the beginning and 2.1 GB in the end (delta: 1.8 GB). Free memory was 227.4 MB in the beginning and 384.4 MB in the end (delta: -157.0 MB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. [2019-10-07 15:11:46,468 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 137.9 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1260.37 ms. Allocated memory was 137.9 MB in the beginning and 205.0 MB in the end (delta: 67.1 MB). Free memory was 98.1 MB in the beginning and 136.5 MB in the end (delta: -38.4 MB). Peak memory consumption was 33.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 252.28 ms. Allocated memory is still 205.0 MB. Free memory was 136.5 MB in the beginning and 127.4 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4816.43 ms. Allocated memory was 205.0 MB in the beginning and 289.9 MB in the end (delta: 84.9 MB). Free memory was 127.4 MB in the beginning and 227.4 MB in the end (delta: -100.0 MB). Peak memory consumption was 134.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 229490.89 ms. Allocated memory was 289.9 MB in the beginning and 2.1 GB in the end (delta: 1.8 GB). Free memory was 227.4 MB in the beginning and 384.4 MB in the end (delta: -157.0 MB). Peak memory consumption was 1.6 GB. 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...