java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/email_spec6_product26.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:15:48,330 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:15:48,333 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:15:48,352 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:15:48,352 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:15:48,354 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:15:48,356 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:15:48,364 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:15:48,366 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:15:48,367 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:15:48,368 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:15:48,372 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:15:48,372 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:15:48,373 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:15:48,374 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:15:48,378 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:15:48,379 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:15:48,380 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:15:48,382 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:15:48,385 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:15:48,386 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:15:48,387 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:15:48,388 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:15:48,389 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:15:48,391 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 03:15:48,391 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 03:15:48,392 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 03:15:48,392 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 03:15:48,393 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 03:15:48,394 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 03:15:48,394 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:15:48,395 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:15:48,395 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:15:48,396 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:15:48,397 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:15:48,397 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:15:48,398 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:15:48,398 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:15:48,399 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:15:48,399 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:15:48,400 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:15:48,401 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 03:15:48,424 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:15:48,425 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:15:48,426 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:15:48,426 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:15:48,426 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:15:48,427 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:15:48,427 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:15:48,428 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:15:48,428 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:15:48,428 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:15:48,428 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:15:48,428 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:15:48,429 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:15:48,429 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:15:48,429 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:15:48,430 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:15:48,431 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:15:48,431 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:15:48,431 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:15:48,431 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:15:48,432 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:15:48,432 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:15:48,432 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:15:48,433 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:15:48,433 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:15:48,433 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:15:48,433 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:15:48,433 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:15:48,434 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-15 03:15:48,757 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:15:48,782 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:15:48,786 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:15:48,789 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:15:48,789 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:15:48,790 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec6_product26.cil.c [2019-10-15 03:15:48,863 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f7602fc6/4b40fb23773d421e9da68e9493703843/FLAG22dca32ee [2019-10-15 03:15:49,444 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:15:49,445 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec6_product26.cil.c [2019-10-15 03:15:49,481 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f7602fc6/4b40fb23773d421e9da68e9493703843/FLAG22dca32ee [2019-10-15 03:15:49,678 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f7602fc6/4b40fb23773d421e9da68e9493703843 [2019-10-15 03:15:49,689 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:15:49,691 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:15:49,694 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:15:49,694 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:15:49,696 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:15:49,697 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:15:49" (1/1) ... [2019-10-15 03:15:49,699 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cc444e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:49, skipping insertion in model container [2019-10-15 03:15:49,700 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:15:49" (1/1) ... [2019-10-15 03:15:49,706 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:15:49,783 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:15:50,525 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:15:50,552 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:15:50,672 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:15:50,765 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:15:50,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:50 WrapperNode [2019-10-15 03:15:50,766 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:15:50,766 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:15:50,767 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:15:50,767 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:15:50,781 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:50" (1/1) ... [2019-10-15 03:15:50,781 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:50" (1/1) ... [2019-10-15 03:15:50,815 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:50" (1/1) ... [2019-10-15 03:15:50,816 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:50" (1/1) ... [2019-10-15 03:15:50,888 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:50" (1/1) ... [2019-10-15 03:15:50,916 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:50" (1/1) ... [2019-10-15 03:15:50,943 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:50" (1/1) ... [2019-10-15 03:15:50,987 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:15:50,988 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:15:50,988 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:15:50,988 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:15:50,991 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:50" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:15:51,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:15:51,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:15:51,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 03:15:51,096 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 03:15:51,096 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 03:15:51,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 03:15:51,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 03:15:51,098 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 03:15:51,098 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 03:15:51,098 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 03:15:51,098 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 03:15:51,099 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 03:15:51,099 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 03:15:51,100 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 03:15:51,100 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 03:15:51,100 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 03:15:51,102 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 03:15:51,103 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 03:15:51,103 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:15:51,103 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 03:15:51,103 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 03:15:51,103 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 03:15:51,104 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 03:15:51,104 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 03:15:51,104 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 03:15:51,104 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 03:15:51,104 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 03:15:51,105 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 03:15:51,105 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-15 03:15:51,105 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-15 03:15:51,105 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-15 03:15:51,106 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 03:15:51,106 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 03:15:51,106 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 03:15:51,106 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 03:15:51,106 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 03:15:51,107 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 03:15:51,107 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 03:15:51,107 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 03:15:51,107 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 03:15:51,108 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 03:15:51,108 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 03:15:51,108 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 03:15:51,108 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 03:15:51,108 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 03:15:51,109 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 03:15:51,109 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 03:15:51,109 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 03:15:51,109 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 03:15:51,109 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 03:15:51,109 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 03:15:51,110 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 03:15:51,110 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 03:15:51,110 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 03:15:51,110 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 03:15:51,110 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 03:15:51,111 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 03:15:51,111 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 03:15:51,111 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 03:15:51,112 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 03:15:51,112 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 03:15:51,112 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 03:15:51,112 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 03:15:51,112 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 03:15:51,113 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 03:15:51,113 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 03:15:51,113 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 03:15:51,113 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 03:15:51,113 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 03:15:51,113 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 03:15:51,113 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 03:15:51,114 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 03:15:51,114 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 03:15:51,114 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 03:15:51,115 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 03:15:51,115 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 03:15:51,115 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 03:15:51,116 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 03:15:51,116 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 03:15:51,116 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 03:15:51,116 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 03:15:51,117 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 03:15:51,117 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 03:15:51,117 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 03:15:51,117 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 03:15:51,118 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-15 03:15:51,118 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-15 03:15:51,119 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 03:15:51,119 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 03:15:51,119 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 03:15:51,119 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 03:15:51,119 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 03:15:51,120 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 03:15:51,120 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 03:15:51,120 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 03:15:51,120 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 03:15:51,120 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 03:15:51,120 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 03:15:51,120 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-15 03:15:51,121 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 03:15:51,121 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 03:15:51,121 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-15 03:15:51,121 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AddressBook [2019-10-15 03:15:51,121 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-15 03:15:51,121 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 03:15:51,122 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 03:15:51,122 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 03:15:51,122 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 03:15:51,122 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 03:15:51,122 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 03:15:51,122 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 03:15:51,123 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 03:15:51,123 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 03:15:51,123 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-15 03:15:51,123 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-15 03:15:51,123 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-15 03:15:51,123 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:15:51,124 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:15:51,124 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 03:15:51,124 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 03:15:51,125 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 03:15:51,125 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 03:15:51,125 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 03:15:51,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 03:15:51,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 03:15:51,126 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 03:15:51,127 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 03:15:51,127 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 03:15:51,127 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 03:15:51,127 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 03:15:51,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 03:15:51,128 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 03:15:51,128 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 03:15:51,129 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 03:15:51,133 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 03:15:51,133 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 03:15:51,134 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 03:15:51,134 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 03:15:51,135 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 03:15:51,135 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 03:15:51,135 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 03:15:51,135 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 03:15:51,135 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 03:15:51,136 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 03:15:51,144 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 03:15:51,144 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 03:15:51,144 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 03:15:51,144 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 03:15:51,145 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 03:15:51,145 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 03:15:51,145 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 03:15:51,145 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 03:15:51,146 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 03:15:51,146 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 03:15:51,146 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 03:15:51,146 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 03:15:51,147 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 03:15:51,147 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 03:15:51,147 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 03:15:51,147 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 03:15:51,147 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 03:15:51,147 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 03:15:51,147 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 03:15:51,147 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 03:15:51,148 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 03:15:51,148 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:15:51,148 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 03:15:51,148 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 03:15:51,148 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 03:15:51,148 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 03:15:51,148 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 03:15:51,148 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 03:15:51,149 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 03:15:51,149 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 03:15:51,149 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 03:15:51,149 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-15 03:15:51,149 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-15 03:15:51,149 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-15 03:15:51,149 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 03:15:51,149 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 03:15:51,150 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 03:15:51,150 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 03:15:51,150 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 03:15:51,150 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 03:15:51,150 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 03:15:51,150 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 03:15:51,150 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 03:15:51,150 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 03:15:51,151 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 03:15:51,151 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 03:15:51,151 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 03:15:51,151 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 03:15:51,151 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 03:15:51,151 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 03:15:51,151 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 03:15:51,151 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 03:15:51,152 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 03:15:51,152 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 03:15:51,152 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 03:15:51,152 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 03:15:51,152 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 03:15:51,152 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 03:15:51,152 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 03:15:51,152 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 03:15:51,153 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 03:15:51,153 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 03:15:51,153 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 03:15:51,153 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 03:15:51,153 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 03:15:51,153 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 03:15:51,153 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 03:15:51,154 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 03:15:51,154 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 03:15:51,154 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 03:15:51,154 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 03:15:51,154 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 03:15:51,154 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 03:15:51,154 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 03:15:51,154 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 03:15:51,155 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 03:15:51,155 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 03:15:51,155 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 03:15:51,155 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-15 03:15:51,155 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-15 03:15:51,155 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 03:15:51,155 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 03:15:51,155 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 03:15:51,156 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 03:15:51,156 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 03:15:51,156 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 03:15:51,156 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 03:15:51,156 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 03:15:51,156 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 03:15:51,156 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 03:15:51,157 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 03:15:51,157 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 03:15:51,157 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-15 03:15:51,157 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-15 03:15:51,157 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-15 03:15:51,157 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 03:15:51,157 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-15 03:15:51,158 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-15 03:15:51,158 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AddressBook [2019-10-15 03:15:51,158 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-15 03:15:51,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:15:51,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 03:15:51,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:15:56,005 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:15:56,006 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 03:15:56,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:15:56 BoogieIcfgContainer [2019-10-15 03:15:56,007 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:15:56,008 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:15:56,009 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:15:56,012 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:15:56,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:15:49" (1/3) ... [2019-10-15 03:15:56,013 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f5c3b25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:15:56, skipping insertion in model container [2019-10-15 03:15:56,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:50" (2/3) ... [2019-10-15 03:15:56,013 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f5c3b25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:15:56, skipping insertion in model container [2019-10-15 03:15:56,014 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:15:56" (3/3) ... [2019-10-15 03:15:56,015 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec6_product26.cil.c [2019-10-15 03:15:56,025 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:15:56,035 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:15:56,047 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:15:56,076 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:15:56,076 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:15:56,076 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:15:56,077 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:15:56,077 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:15:56,077 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:15:56,077 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:15:56,077 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:15:56,106 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states. [2019-10-15 03:15:56,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2019-10-15 03:15:56,125 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:56,126 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:15:56,128 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:56,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:56,134 INFO L82 PathProgramCache]: Analyzing trace with hash 1454161030, now seen corresponding path program 1 times [2019-10-15 03:15:56,144 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:56,145 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194551496] [2019-10-15 03:15:56,145 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:56,145 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:56,146 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:56,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:56,869 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-15 03:15:56,870 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194551496] [2019-10-15 03:15:56,871 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:15:56,872 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 03:15:56,873 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9673069] [2019-10-15 03:15:56,879 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 03:15:56,879 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:15:56,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 03:15:56,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:15:56,897 INFO L87 Difference]: Start difference. First operand 424 states. Second operand 2 states. [2019-10-15 03:15:56,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:15:56,991 INFO L93 Difference]: Finished difference Result 623 states and 745 transitions. [2019-10-15 03:15:56,991 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 03:15:56,992 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 143 [2019-10-15 03:15:56,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:15:57,013 INFO L225 Difference]: With dead ends: 623 [2019-10-15 03:15:57,013 INFO L226 Difference]: Without dead ends: 397 [2019-10-15 03:15:57,020 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:15:57,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2019-10-15 03:15:57,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 397. [2019-10-15 03:15:57,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 397 states. [2019-10-15 03:15:57,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 470 transitions. [2019-10-15 03:15:57,111 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 470 transitions. Word has length 143 [2019-10-15 03:15:57,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:15:57,115 INFO L462 AbstractCegarLoop]: Abstraction has 397 states and 470 transitions. [2019-10-15 03:15:57,116 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 03:15:57,116 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 470 transitions. [2019-10-15 03:15:57,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2019-10-15 03:15:57,124 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:57,124 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:15:57,125 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:57,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:57,125 INFO L82 PathProgramCache]: Analyzing trace with hash -960052196, now seen corresponding path program 1 times [2019-10-15 03:15:57,125 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:57,126 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142768212] [2019-10-15 03:15:57,126 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:57,126 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:57,126 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:57,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:57,331 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-15 03:15:57,331 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142768212] [2019-10-15 03:15:57,332 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:15:57,332 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:15:57,332 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636580332] [2019-10-15 03:15:57,335 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:15:57,336 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:15:57,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:15:57,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:15:57,336 INFO L87 Difference]: Start difference. First operand 397 states and 470 transitions. Second operand 3 states. [2019-10-15 03:15:57,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:15:57,397 INFO L93 Difference]: Finished difference Result 608 states and 713 transitions. [2019-10-15 03:15:57,397 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:15:57,398 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 144 [2019-10-15 03:15:57,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:15:57,403 INFO L225 Difference]: With dead ends: 608 [2019-10-15 03:15:57,403 INFO L226 Difference]: Without dead ends: 399 [2019-10-15 03:15:57,406 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:15:57,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2019-10-15 03:15:57,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 399. [2019-10-15 03:15:57,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 399 states. [2019-10-15 03:15:57,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 472 transitions. [2019-10-15 03:15:57,470 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 472 transitions. Word has length 144 [2019-10-15 03:15:57,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:15:57,471 INFO L462 AbstractCegarLoop]: Abstraction has 399 states and 472 transitions. [2019-10-15 03:15:57,471 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:15:57,471 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 472 transitions. [2019-10-15 03:15:57,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2019-10-15 03:15:57,475 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:57,475 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:15:57,476 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:57,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:57,476 INFO L82 PathProgramCache]: Analyzing trace with hash 1019330553, now seen corresponding path program 1 times [2019-10-15 03:15:57,476 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:57,477 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307013303] [2019-10-15 03:15:57,477 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:57,477 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:57,477 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:57,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:57,768 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-15 03:15:57,769 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307013303] [2019-10-15 03:15:57,769 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:15:57,769 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:15:57,769 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270649551] [2019-10-15 03:15:57,770 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:15:57,770 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:15:57,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:15:57,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:15:57,771 INFO L87 Difference]: Start difference. First operand 399 states and 472 transitions. Second operand 3 states. [2019-10-15 03:15:57,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:15:57,818 INFO L93 Difference]: Finished difference Result 784 states and 957 transitions. [2019-10-15 03:15:57,819 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:15:57,819 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 156 [2019-10-15 03:15:57,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:15:57,825 INFO L225 Difference]: With dead ends: 784 [2019-10-15 03:15:57,825 INFO L226 Difference]: Without dead ends: 443 [2019-10-15 03:15:57,827 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:15:57,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2019-10-15 03:15:57,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 442. [2019-10-15 03:15:57,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 442 states. [2019-10-15 03:15:57,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 546 transitions. [2019-10-15 03:15:57,863 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 546 transitions. Word has length 156 [2019-10-15 03:15:57,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:15:57,865 INFO L462 AbstractCegarLoop]: Abstraction has 442 states and 546 transitions. [2019-10-15 03:15:57,865 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:15:57,865 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 546 transitions. [2019-10-15 03:15:57,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2019-10-15 03:15:57,874 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:57,874 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:15:57,875 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:57,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:57,875 INFO L82 PathProgramCache]: Analyzing trace with hash -1615276318, now seen corresponding path program 1 times [2019-10-15 03:15:57,875 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:57,876 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121174991] [2019-10-15 03:15:57,876 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:57,876 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:57,876 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:57,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:58,651 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 03:15:58,652 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121174991] [2019-10-15 03:15:58,652 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:15:58,652 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2019-10-15 03:15:58,652 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092668931] [2019-10-15 03:15:58,653 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2019-10-15 03:15:58,654 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:15:58,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2019-10-15 03:15:58,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=492, Unknown=0, NotChecked=0, Total=552 [2019-10-15 03:15:58,655 INFO L87 Difference]: Start difference. First operand 442 states and 546 transitions. Second operand 24 states. [2019-10-15 03:16:07,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:16:07,720 INFO L93 Difference]: Finished difference Result 1204 states and 1482 transitions. [2019-10-15 03:16:07,721 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2019-10-15 03:16:07,721 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 157 [2019-10-15 03:16:07,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:16:07,731 INFO L225 Difference]: With dead ends: 1204 [2019-10-15 03:16:07,731 INFO L226 Difference]: Without dead ends: 1003 [2019-10-15 03:16:07,734 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 538 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=272, Invalid=2484, Unknown=0, NotChecked=0, Total=2756 [2019-10-15 03:16:07,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1003 states. [2019-10-15 03:16:07,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1003 to 990. [2019-10-15 03:16:07,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 990 states. [2019-10-15 03:16:07,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 990 states to 990 states and 1204 transitions. [2019-10-15 03:16:07,792 INFO L78 Accepts]: Start accepts. Automaton has 990 states and 1204 transitions. Word has length 157 [2019-10-15 03:16:07,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:16:07,793 INFO L462 AbstractCegarLoop]: Abstraction has 990 states and 1204 transitions. [2019-10-15 03:16:07,793 INFO L463 AbstractCegarLoop]: Interpolant automaton has 24 states. [2019-10-15 03:16:07,793 INFO L276 IsEmpty]: Start isEmpty. Operand 990 states and 1204 transitions. [2019-10-15 03:16:07,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2019-10-15 03:16:07,797 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:16:07,797 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:16:07,797 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:16:07,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:16:07,798 INFO L82 PathProgramCache]: Analyzing trace with hash 1771186363, now seen corresponding path program 1 times [2019-10-15 03:16:07,798 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:16:07,798 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459837919] [2019-10-15 03:16:07,798 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:07,798 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:07,798 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:16:07,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:16:08,152 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 03:16:08,153 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459837919] [2019-10-15 03:16:08,154 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:16:08,154 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2019-10-15 03:16:08,154 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89990480] [2019-10-15 03:16:08,155 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-15 03:16:08,155 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:16:08,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-15 03:16:08,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2019-10-15 03:16:08,157 INFO L87 Difference]: Start difference. First operand 990 states and 1204 transitions. Second operand 14 states. [2019-10-15 03:16:12,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:16:12,259 INFO L93 Difference]: Finished difference Result 2265 states and 2758 transitions. [2019-10-15 03:16:12,259 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-15 03:16:12,260 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 163 [2019-10-15 03:16:12,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:16:12,273 INFO L225 Difference]: With dead ends: 2265 [2019-10-15 03:16:12,273 INFO L226 Difference]: Without dead ends: 1884 [2019-10-15 03:16:12,276 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=119, Invalid=531, Unknown=0, NotChecked=0, Total=650 [2019-10-15 03:16:12,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1884 states. [2019-10-15 03:16:12,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1884 to 1836. [2019-10-15 03:16:12,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1836 states. [2019-10-15 03:16:12,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1836 states to 1836 states and 2223 transitions. [2019-10-15 03:16:12,392 INFO L78 Accepts]: Start accepts. Automaton has 1836 states and 2223 transitions. Word has length 163 [2019-10-15 03:16:12,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:16:12,393 INFO L462 AbstractCegarLoop]: Abstraction has 1836 states and 2223 transitions. [2019-10-15 03:16:12,393 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-15 03:16:12,393 INFO L276 IsEmpty]: Start isEmpty. Operand 1836 states and 2223 transitions. [2019-10-15 03:16:12,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2019-10-15 03:16:12,397 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:16:12,397 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:16:12,398 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:16:12,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:16:12,398 INFO L82 PathProgramCache]: Analyzing trace with hash -720526917, now seen corresponding path program 1 times [2019-10-15 03:16:12,398 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:16:12,398 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841681143] [2019-10-15 03:16:12,399 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:12,399 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:12,399 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:16:12,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:16:12,608 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-15 03:16:12,609 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841681143] [2019-10-15 03:16:12,609 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:16:12,610 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:16:12,610 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452390202] [2019-10-15 03:16:12,610 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:16:12,611 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:16:12,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:16:12,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:16:12,611 INFO L87 Difference]: Start difference. First operand 1836 states and 2223 transitions. Second operand 3 states. [2019-10-15 03:16:12,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:16:12,709 INFO L93 Difference]: Finished difference Result 3732 states and 4588 transitions. [2019-10-15 03:16:12,709 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:16:12,710 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 178 [2019-10-15 03:16:12,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:16:12,723 INFO L225 Difference]: With dead ends: 3732 [2019-10-15 03:16:12,723 INFO L226 Difference]: Without dead ends: 1954 [2019-10-15 03:16:12,731 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:16:12,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1954 states. [2019-10-15 03:16:12,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1954 to 1952. [2019-10-15 03:16:12,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1952 states. [2019-10-15 03:16:12,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1952 states to 1952 states and 2423 transitions. [2019-10-15 03:16:12,858 INFO L78 Accepts]: Start accepts. Automaton has 1952 states and 2423 transitions. Word has length 178 [2019-10-15 03:16:12,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:16:12,859 INFO L462 AbstractCegarLoop]: Abstraction has 1952 states and 2423 transitions. [2019-10-15 03:16:12,859 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:16:12,859 INFO L276 IsEmpty]: Start isEmpty. Operand 1952 states and 2423 transitions. [2019-10-15 03:16:12,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2019-10-15 03:16:12,864 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:16:12,864 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:16:12,864 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:16:12,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:16:12,865 INFO L82 PathProgramCache]: Analyzing trace with hash -1146924668, now seen corresponding path program 1 times [2019-10-15 03:16:12,865 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:16:12,868 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749530350] [2019-10-15 03:16:12,869 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:12,869 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:12,869 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:16:12,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:16:13,032 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-15 03:16:13,033 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749530350] [2019-10-15 03:16:13,033 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:16:13,033 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:16:13,033 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863953865] [2019-10-15 03:16:13,034 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:16:13,034 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:16:13,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:16:13,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:16:13,036 INFO L87 Difference]: Start difference. First operand 1952 states and 2423 transitions. Second operand 3 states. [2019-10-15 03:16:13,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:16:13,155 INFO L93 Difference]: Finished difference Result 4071 states and 5173 transitions. [2019-10-15 03:16:13,156 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:16:13,156 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 179 [2019-10-15 03:16:13,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:16:13,183 INFO L225 Difference]: With dead ends: 4071 [2019-10-15 03:16:13,183 INFO L226 Difference]: Without dead ends: 2177 [2019-10-15 03:16:13,192 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:16:13,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2177 states. [2019-10-15 03:16:13,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2177 to 2175. [2019-10-15 03:16:13,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2175 states. [2019-10-15 03:16:13,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2175 states to 2175 states and 2805 transitions. [2019-10-15 03:16:13,346 INFO L78 Accepts]: Start accepts. Automaton has 2175 states and 2805 transitions. Word has length 179 [2019-10-15 03:16:13,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:16:13,347 INFO L462 AbstractCegarLoop]: Abstraction has 2175 states and 2805 transitions. [2019-10-15 03:16:13,347 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:16:13,347 INFO L276 IsEmpty]: Start isEmpty. Operand 2175 states and 2805 transitions. [2019-10-15 03:16:13,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2019-10-15 03:16:13,354 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:16:13,354 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:16:13,354 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:16:13,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:16:13,355 INFO L82 PathProgramCache]: Analyzing trace with hash 370854203, now seen corresponding path program 1 times [2019-10-15 03:16:13,355 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:16:13,355 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91123980] [2019-10-15 03:16:13,355 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:13,355 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:13,356 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:16:13,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:16:13,764 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-15 03:16:13,764 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91123980] [2019-10-15 03:16:13,765 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:16:13,765 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-15 03:16:13,765 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898098260] [2019-10-15 03:16:13,766 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-15 03:16:13,766 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:16:13,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-15 03:16:13,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2019-10-15 03:16:13,767 INFO L87 Difference]: Start difference. First operand 2175 states and 2805 transitions. Second operand 12 states. [2019-10-15 03:16:18,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:16:18,500 INFO L93 Difference]: Finished difference Result 4552 states and 6039 transitions. [2019-10-15 03:16:18,500 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-10-15 03:16:18,500 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 180 [2019-10-15 03:16:18,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:16:18,538 INFO L225 Difference]: With dead ends: 4552 [2019-10-15 03:16:18,538 INFO L226 Difference]: Without dead ends: 3373 [2019-10-15 03:16:18,551 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=167, Invalid=589, Unknown=0, NotChecked=0, Total=756 [2019-10-15 03:16:18,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3373 states. [2019-10-15 03:16:18,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3373 to 2610. [2019-10-15 03:16:18,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2610 states. [2019-10-15 03:16:18,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2610 states to 2610 states and 3550 transitions. [2019-10-15 03:16:18,766 INFO L78 Accepts]: Start accepts. Automaton has 2610 states and 3550 transitions. Word has length 180 [2019-10-15 03:16:18,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:16:18,768 INFO L462 AbstractCegarLoop]: Abstraction has 2610 states and 3550 transitions. [2019-10-15 03:16:18,768 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-15 03:16:18,768 INFO L276 IsEmpty]: Start isEmpty. Operand 2610 states and 3550 transitions. [2019-10-15 03:16:18,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2019-10-15 03:16:18,777 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:16:18,778 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:16:18,778 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:16:18,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:16:18,779 INFO L82 PathProgramCache]: Analyzing trace with hash 1471678325, now seen corresponding path program 1 times [2019-10-15 03:16:18,779 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:16:18,779 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29814853] [2019-10-15 03:16:18,779 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:18,780 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:18,780 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:16:18,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:16:18,944 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-15 03:16:18,944 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29814853] [2019-10-15 03:16:18,945 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:16:18,945 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:16:18,946 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441475528] [2019-10-15 03:16:18,947 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:16:18,947 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:16:18,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:16:18,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:16:18,948 INFO L87 Difference]: Start difference. First operand 2610 states and 3550 transitions. Second operand 3 states. [2019-10-15 03:16:19,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:16:19,171 INFO L93 Difference]: Finished difference Result 5467 states and 7592 transitions. [2019-10-15 03:16:19,171 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:16:19,171 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 181 [2019-10-15 03:16:19,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:16:19,195 INFO L225 Difference]: With dead ends: 5467 [2019-10-15 03:16:19,196 INFO L226 Difference]: Without dead ends: 2919 [2019-10-15 03:16:19,206 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:16:19,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2919 states. [2019-10-15 03:16:19,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2919 to 2918. [2019-10-15 03:16:19,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2918 states. [2019-10-15 03:16:19,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2918 states to 2918 states and 4086 transitions. [2019-10-15 03:16:19,406 INFO L78 Accepts]: Start accepts. Automaton has 2918 states and 4086 transitions. Word has length 181 [2019-10-15 03:16:19,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:16:19,407 INFO L462 AbstractCegarLoop]: Abstraction has 2918 states and 4086 transitions. [2019-10-15 03:16:19,407 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:16:19,407 INFO L276 IsEmpty]: Start isEmpty. Operand 2918 states and 4086 transitions. [2019-10-15 03:16:19,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2019-10-15 03:16:19,417 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:16:19,418 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:16:19,418 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:16:19,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:16:19,419 INFO L82 PathProgramCache]: Analyzing trace with hash 1766899352, now seen corresponding path program 1 times [2019-10-15 03:16:19,419 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:16:19,419 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567575328] [2019-10-15 03:16:19,419 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:19,419 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:19,419 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:16:19,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:16:19,691 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-15 03:16:19,692 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567575328] [2019-10-15 03:16:19,692 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:16:19,692 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-15 03:16:19,692 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364801272] [2019-10-15 03:16:19,693 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-15 03:16:19,693 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:16:19,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-15 03:16:19,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2019-10-15 03:16:19,694 INFO L87 Difference]: Start difference. First operand 2918 states and 4086 transitions. Second operand 12 states.