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_spec27_product32.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:09:07,589 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:09:07,592 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:09:07,608 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:09:07,609 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:09:07,611 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:09:07,613 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:09:07,622 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:09:07,624 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:09:07,626 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:09:07,627 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:09:07,629 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:09:07,629 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:09:07,630 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:09:07,631 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:09:07,635 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:09:07,637 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:09:07,640 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:09:07,642 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:09:07,648 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:09:07,650 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:09:07,653 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:09:07,656 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:09:07,657 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:09:07,661 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:09:07,661 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:09:07,661 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:09:07,663 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:09:07,665 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:09:07,666 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:09:07,666 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:09:07,668 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:09:07,669 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:09:07,670 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:09:07,674 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:09:07,675 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:09:07,675 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:09:07,676 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:09:07,676 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:09:07,677 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:09:07,678 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:09:07,679 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 [2019-10-13 23:09:07,717 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:09:07,717 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:09:07,718 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:09:07,718 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:09:07,718 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:09:07,719 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:09:07,719 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:09:07,719 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:09:07,719 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:09:07,719 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:09:07,720 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:09:07,720 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:09:07,720 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:09:07,720 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:09:07,720 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:09:07,721 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:09:07,721 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:09:07,721 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:09:07,723 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:09:07,724 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:09:07,724 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:09:07,724 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:09:07,724 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:09:07,725 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:09:07,725 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:09:07,725 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:09:07,725 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:09:07,726 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:09:07,726 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 [2019-10-13 23:09:07,991 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:09:08,008 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:09:08,012 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:09:08,014 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:09:08,014 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:09:08,015 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec27_product32.cil.c [2019-10-13 23:09:08,096 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9518467d/edf7bbdc6889482abc9ac26997b8027f/FLAG5735483aa [2019-10-13 23:09:08,757 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:09:08,759 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec27_product32.cil.c [2019-10-13 23:09:08,782 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9518467d/edf7bbdc6889482abc9ac26997b8027f/FLAG5735483aa [2019-10-13 23:09:08,950 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9518467d/edf7bbdc6889482abc9ac26997b8027f [2019-10-13 23:09:08,961 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:09:08,964 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:09:08,966 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:09:08,966 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:09:08,969 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:09:08,969 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:09:08" (1/1) ... [2019-10-13 23:09:08,972 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51752872 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:08, skipping insertion in model container [2019-10-13 23:09:08,972 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:09:08" (1/1) ... [2019-10-13 23:09:08,978 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:09:09,045 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:09:09,716 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:09:09,742 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:09:09,896 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:09:09,983 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:09:09,983 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:09 WrapperNode [2019-10-13 23:09:09,984 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:09:09,984 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:09:09,985 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:09:09,985 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:09:09,999 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:09" (1/1) ... [2019-10-13 23:09:09,999 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:09" (1/1) ... [2019-10-13 23:09:10,033 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:09" (1/1) ... [2019-10-13 23:09:10,033 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:09" (1/1) ... [2019-10-13 23:09:10,090 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:09" (1/1) ... [2019-10-13 23:09:10,116 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:09" (1/1) ... [2019-10-13 23:09:10,129 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:09" (1/1) ... [2019-10-13 23:09:10,159 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:09:10,159 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:09:10,160 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:09:10,160 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:09:10,166 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:09" (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 [2019-10-13 23:09:10,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:09:10,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:09:10,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:09:10,243 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 23:09:10,244 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 23:09:10,244 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 23:09:10,244 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 23:09:10,244 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 23:09:10,244 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 23:09:10,245 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 23:09:10,245 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 23:09:10,245 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 23:09:10,245 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 23:09:10,246 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 23:09:10,246 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 23:09:10,246 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 23:09:10,246 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 23:09:10,246 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 23:09:10,247 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 23:09:10,247 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 23:09:10,247 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 23:09:10,247 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 23:09:10,247 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 23:09:10,248 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 23:09:10,248 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 23:09:10,248 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 23:09:10,248 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 23:09:10,248 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 23:09:10,249 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 23:09:10,249 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 23:09:10,249 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 23:09:10,249 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 23:09:10,249 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__VerifyForward_spec__1 [2019-10-13 23:09:10,250 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:09:10,250 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 23:09:10,250 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:09:10,250 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:09:10,250 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:09:10,250 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:09:10,251 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:09:10,251 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:09:10,251 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 23:09:10,251 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 23:09:10,251 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 23:09:10,251 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 23:09:10,251 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 23:09:10,252 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 23:09:10,252 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 23:09:10,252 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 23:09:10,252 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:09:10,252 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:09:10,252 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 23:09:10,252 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 23:09:10,253 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 23:09:10,253 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 23:09:10,253 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 23:09:10,253 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 23:09:10,253 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 23:09:10,253 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 23:09:10,254 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 23:09:10,254 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-13 23:09:10,254 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-13 23:09:10,254 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 23:09:10,254 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 23:09:10,254 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-13 23:09:10,255 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-13 23:09:10,255 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 23:09:10,255 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 23:09:10,255 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-13 23:09:10,255 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-13 23:09:10,255 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-13 23:09:10,255 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 23:09:10,256 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 23:09:10,256 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 23:09:10,256 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 23:09:10,256 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 23:09:10,256 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 23:09:10,256 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 23:09:10,257 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 23:09:10,257 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 23:09:10,257 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-13 23:09:10,257 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-13 23:09:10,257 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-13 23:09:10,257 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-13 23:09:10,258 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 23:09:10,258 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 23:09:10,258 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 23:09:10,258 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 23:09:10,258 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 23:09:10,258 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 23:09:10,258 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 23:09:10,259 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 23:09:10,259 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 23:09:10,259 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 23:09:10,259 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 23:09:10,259 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 23:09:10,259 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 23:09:10,259 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 23:09:10,260 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 23:09:10,260 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 23:09:10,260 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 23:09:10,260 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 23:09:10,260 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 23:09:10,260 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 23:09:10,261 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 23:09:10,261 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:09:10,261 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:09:10,261 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:09:10,261 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:09:10,261 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 23:09:10,261 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-13 23:09:10,262 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-13 23:09:10,262 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 23:09:10,262 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 23:09:10,262 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 23:09:10,262 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 23:09:10,262 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 23:09:10,262 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:09:10,263 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:09:10,263 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:09:10,263 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 23:09:10,263 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 23:09:10,263 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 23:09:10,263 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 23:09:10,264 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 23:09:10,264 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 23:09:10,264 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 23:09:10,264 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 23:09:10,264 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 23:09:10,264 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 23:09:10,264 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 23:09:10,265 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 23:09:10,265 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 23:09:10,265 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 23:09:10,265 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 23:09:10,265 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 23:09:10,266 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 23:09:10,266 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 23:09:10,266 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 23:09:10,266 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 23:09:10,266 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 23:09:10,266 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 23:09:10,266 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 23:09:10,267 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 23:09:10,267 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 23:09:10,267 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 23:09:10,267 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 23:09:10,267 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 23:09:10,267 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 23:09:10,268 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:09:10,268 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 23:09:10,268 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 23:09:10,268 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 23:09:10,268 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__VerifyForward_spec__1 [2019-10-13 23:09:10,268 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:09:10,268 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:09:10,269 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 23:09:10,269 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:09:10,269 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:09:10,269 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:09:10,269 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:09:10,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:09:10,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:09:10,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:09:10,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:09:10,270 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:09:10,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:09:10,270 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:09:10,270 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:09:10,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:09:10,271 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:09:10,271 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:09:10,271 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:09:10,271 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:09:10,271 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:09:10,271 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:09:10,272 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 23:09:10,272 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 23:09:10,272 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 23:09:10,272 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 23:09:10,272 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 23:09:10,272 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 23:09:10,273 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 23:09:10,273 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 23:09:10,273 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 23:09:10,273 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 23:09:10,273 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 23:09:10,273 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:09:10,273 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:09:10,274 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:09:10,274 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 23:09:10,274 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 23:09:10,274 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 23:09:10,274 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 23:09:10,274 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 23:09:10,275 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 23:09:10,275 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 23:09:10,275 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 23:09:10,275 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 23:09:10,275 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-13 23:09:10,275 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-13 23:09:10,276 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 23:09:10,276 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 23:09:10,276 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 23:09:10,276 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 23:09:10,276 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 23:09:10,276 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 23:09:10,277 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 23:09:10,277 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 23:09:10,277 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 23:09:10,277 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 23:09:10,277 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 23:09:10,277 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 23:09:10,278 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 23:09:10,278 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 23:09:10,278 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 23:09:10,278 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 23:09:10,278 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 23:09:10,279 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 23:09:10,279 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 23:09:10,279 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 23:09:10,279 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 23:09:10,279 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 23:09:10,279 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 23:09:10,280 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-13 23:09:10,280 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-13 23:09:10,280 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-13 23:09:10,280 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-13 23:09:10,280 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 23:09:10,280 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-13 23:09:10,281 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-13 23:09:10,281 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-13 23:09:10,281 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-13 23:09:10,281 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-13 23:09:10,281 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 23:09:10,281 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 23:09:10,281 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 23:09:10,282 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 23:09:10,282 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 23:09:10,282 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 23:09:10,282 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 23:09:10,282 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:09:10,282 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 23:09:10,283 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 23:09:10,283 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 23:09:10,283 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-13 23:09:10,283 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-13 23:09:10,283 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 23:09:10,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:09:10,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:09:10,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:09:15,060 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:09:15,060 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 23:09:15,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:09:15 BoogieIcfgContainer [2019-10-13 23:09:15,062 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:09:15,064 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:09:15,064 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:09:15,067 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:09:15,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:09:08" (1/3) ... [2019-10-13 23:09:15,068 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75b92c7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:09:15, skipping insertion in model container [2019-10-13 23:09:15,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:09" (2/3) ... [2019-10-13 23:09:15,069 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75b92c7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:09:15, skipping insertion in model container [2019-10-13 23:09:15,069 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:09:15" (3/3) ... [2019-10-13 23:09:15,071 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec27_product32.cil.c [2019-10-13 23:09:15,082 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:09:15,092 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:09:15,104 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:09:15,133 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:09:15,133 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:09:15,133 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:09:15,133 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:09:15,134 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:09:15,134 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:09:15,134 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:09:15,134 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:09:15,164 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states. [2019-10-13 23:09:15,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2019-10-13 23:09:15,185 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:09:15,186 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:09:15,188 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:09:15,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:09:15,195 INFO L82 PathProgramCache]: Analyzing trace with hash 1197640387, now seen corresponding path program 1 times [2019-10-13 23:09:15,204 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:09:15,205 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238594533] [2019-10-13 23:09:15,205 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:15,205 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:15,205 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:09:15,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:09:15,852 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-13 23:09:15,853 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238594533] [2019-10-13 23:09:15,853 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:09:15,854 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:09:15,854 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736919863] [2019-10-13 23:09:15,859 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:09:15,860 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:09:15,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:09:15,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:09:15,876 INFO L87 Difference]: Start difference. First operand 446 states. Second operand 2 states. [2019-10-13 23:09:15,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:09:15,955 INFO L93 Difference]: Finished difference Result 636 states and 763 transitions. [2019-10-13 23:09:15,955 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:09:15,958 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 174 [2019-10-13 23:09:15,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:09:15,980 INFO L225 Difference]: With dead ends: 636 [2019-10-13 23:09:15,981 INFO L226 Difference]: Without dead ends: 400 [2019-10-13 23:09:15,992 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 [2019-10-13 23:09:16,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2019-10-13 23:09:16,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 400. [2019-10-13 23:09:16,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 400 states. [2019-10-13 23:09:16,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 473 transitions. [2019-10-13 23:09:16,085 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 473 transitions. Word has length 174 [2019-10-13 23:09:16,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:09:16,087 INFO L462 AbstractCegarLoop]: Abstraction has 400 states and 473 transitions. [2019-10-13 23:09:16,087 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:09:16,088 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 473 transitions. [2019-10-13 23:09:16,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2019-10-13 23:09:16,094 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:09:16,094 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:09:16,095 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:09:16,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:09:16,095 INFO L82 PathProgramCache]: Analyzing trace with hash -337901159, now seen corresponding path program 1 times [2019-10-13 23:09:16,095 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:09:16,095 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935783134] [2019-10-13 23:09:16,096 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:16,096 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:16,096 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:09:16,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:09:16,486 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-13 23:09:16,486 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935783134] [2019-10-13 23:09:16,487 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:09:16,487 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:09:16,487 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384921011] [2019-10-13 23:09:16,489 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:09:16,490 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:09:16,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:09:16,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:09:16,490 INFO L87 Difference]: Start difference. First operand 400 states and 473 transitions. Second operand 3 states. [2019-10-13 23:09:16,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:09:16,547 INFO L93 Difference]: Finished difference Result 621 states and 726 transitions. [2019-10-13 23:09:16,548 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:09:16,548 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 175 [2019-10-13 23:09:16,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:09:16,553 INFO L225 Difference]: With dead ends: 621 [2019-10-13 23:09:16,553 INFO L226 Difference]: Without dead ends: 402 [2019-10-13 23:09:16,556 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 [2019-10-13 23:09:16,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2019-10-13 23:09:16,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 402. [2019-10-13 23:09:16,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 402 states. [2019-10-13 23:09:16,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 475 transitions. [2019-10-13 23:09:16,599 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 475 transitions. Word has length 175 [2019-10-13 23:09:16,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:09:16,599 INFO L462 AbstractCegarLoop]: Abstraction has 402 states and 475 transitions. [2019-10-13 23:09:16,600 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:09:16,600 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 475 transitions. [2019-10-13 23:09:16,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2019-10-13 23:09:16,604 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:09:16,604 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:09:16,604 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:09:16,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:09:16,605 INFO L82 PathProgramCache]: Analyzing trace with hash -1763003140, now seen corresponding path program 1 times [2019-10-13 23:09:16,605 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:09:16,605 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849281976] [2019-10-13 23:09:16,605 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:16,605 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:16,606 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:09:16,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:09:16,782 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-13 23:09:16,782 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849281976] [2019-10-13 23:09:16,782 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:09:16,783 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:09:16,783 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287329325] [2019-10-13 23:09:16,786 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:09:16,786 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:09:16,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:09:16,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:09:16,787 INFO L87 Difference]: Start difference. First operand 402 states and 475 transitions. Second operand 3 states. [2019-10-13 23:09:16,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:09:16,835 INFO L93 Difference]: Finished difference Result 788 states and 960 transitions. [2019-10-13 23:09:16,836 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:09:16,836 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 184 [2019-10-13 23:09:16,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:09:16,845 INFO L225 Difference]: With dead ends: 788 [2019-10-13 23:09:16,846 INFO L226 Difference]: Without dead ends: 444 [2019-10-13 23:09:16,851 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 [2019-10-13 23:09:16,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2019-10-13 23:09:16,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 443. [2019-10-13 23:09:16,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 443 states. [2019-10-13 23:09:16,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 546 transitions. [2019-10-13 23:09:16,885 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 546 transitions. Word has length 184 [2019-10-13 23:09:16,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:09:16,886 INFO L462 AbstractCegarLoop]: Abstraction has 443 states and 546 transitions. [2019-10-13 23:09:16,887 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:09:16,887 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 546 transitions. [2019-10-13 23:09:16,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2019-10-13 23:09:16,896 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:09:16,897 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:09:16,897 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:09:16,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:09:16,897 INFO L82 PathProgramCache]: Analyzing trace with hash 1576496453, now seen corresponding path program 1 times [2019-10-13 23:09:16,898 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:09:16,898 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892514561] [2019-10-13 23:09:16,898 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:16,899 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:16,899 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:09:16,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:09:17,171 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-13 23:09:17,171 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892514561] [2019-10-13 23:09:17,172 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:09:17,172 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:09:17,173 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396236342] [2019-10-13 23:09:17,175 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:09:17,176 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:09:17,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:09:17,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:09:17,177 INFO L87 Difference]: Start difference. First operand 443 states and 546 transitions. Second operand 3 states. [2019-10-13 23:09:17,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:09:17,289 INFO L93 Difference]: Finished difference Result 908 states and 1168 transitions. [2019-10-13 23:09:17,290 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:09:17,290 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 185 [2019-10-13 23:09:17,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:09:17,303 INFO L225 Difference]: With dead ends: 908 [2019-10-13 23:09:17,304 INFO L226 Difference]: Without dead ends: 523 [2019-10-13 23:09:17,306 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 [2019-10-13 23:09:17,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2019-10-13 23:09:17,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 522. [2019-10-13 23:09:17,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 522 states. [2019-10-13 23:09:17,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 682 transitions. [2019-10-13 23:09:17,358 INFO L78 Accepts]: Start accepts. Automaton has 522 states and 682 transitions. Word has length 185 [2019-10-13 23:09:17,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:09:17,359 INFO L462 AbstractCegarLoop]: Abstraction has 522 states and 682 transitions. [2019-10-13 23:09:17,360 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:09:17,360 INFO L276 IsEmpty]: Start isEmpty. Operand 522 states and 682 transitions. [2019-10-13 23:09:17,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2019-10-13 23:09:17,369 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:09:17,370 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:09:17,370 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:09:17,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:09:17,370 INFO L82 PathProgramCache]: Analyzing trace with hash -1211164531, now seen corresponding path program 1 times [2019-10-13 23:09:17,371 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:09:17,371 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7471727] [2019-10-13 23:09:17,371 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:17,372 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:17,372 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:09:17,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:09:18,274 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-10-13 23:09:18,274 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7471727] [2019-10-13 23:09:18,275 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:09:18,275 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2019-10-13 23:09:18,275 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505730613] [2019-10-13 23:09:18,276 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2019-10-13 23:09:18,276 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:09:18,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2019-10-13 23:09:18,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2019-10-13 23:09:18,277 INFO L87 Difference]: Start difference. First operand 522 states and 682 transitions. Second operand 28 states. [2019-10-13 23:09:27,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:09:27,942 INFO L93 Difference]: Finished difference Result 1043 states and 1332 transitions. [2019-10-13 23:09:27,942 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2019-10-13 23:09:27,943 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 188 [2019-10-13 23:09:27,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:09:27,949 INFO L225 Difference]: With dead ends: 1043 [2019-10-13 23:09:27,949 INFO L226 Difference]: Without dead ends: 832 [2019-10-13 23:09:27,952 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 352 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=178, Invalid=2078, Unknown=0, NotChecked=0, Total=2256 [2019-10-13 23:09:27,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 832 states. [2019-10-13 23:09:27,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 832 to 803. [2019-10-13 23:09:27,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 803 states. [2019-10-13 23:09:28,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 1034 transitions. [2019-10-13 23:09:28,000 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 1034 transitions. Word has length 188 [2019-10-13 23:09:28,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:09:28,005 INFO L462 AbstractCegarLoop]: Abstraction has 803 states and 1034 transitions. [2019-10-13 23:09:28,006 INFO L463 AbstractCegarLoop]: Interpolant automaton has 28 states. [2019-10-13 23:09:28,006 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 1034 transitions. [2019-10-13 23:09:28,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2019-10-13 23:09:28,010 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:09:28,010 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:09:28,011 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:09:28,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:09:28,011 INFO L82 PathProgramCache]: Analyzing trace with hash -2127093432, now seen corresponding path program 1 times [2019-10-13 23:09:28,011 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:09:28,012 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386170675] [2019-10-13 23:09:28,012 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:28,012 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:28,012 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:09:28,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:09:28,341 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-10-13 23:09:28,342 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386170675] [2019-10-13 23:09:28,343 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:09:28,343 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-13 23:09:28,343 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728351536] [2019-10-13 23:09:28,344 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-13 23:09:28,344 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:09:28,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-13 23:09:28,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-13 23:09:28,346 INFO L87 Difference]: Start difference. First operand 803 states and 1034 transitions. Second operand 10 states. [2019-10-13 23:09:28,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:09:28,445 INFO L93 Difference]: Finished difference Result 1295 states and 1656 transitions. [2019-10-13 23:09:28,446 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-13 23:09:28,446 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 192 [2019-10-13 23:09:28,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:09:28,454 INFO L225 Difference]: With dead ends: 1295 [2019-10-13 23:09:28,455 INFO L226 Difference]: Without dead ends: 823 [2019-10-13 23:09:28,458 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-13 23:09:28,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 823 states. [2019-10-13 23:09:28,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 823 to 807. [2019-10-13 23:09:28,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 807 states. [2019-10-13 23:09:28,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 807 states to 807 states and 1037 transitions. [2019-10-13 23:09:28,519 INFO L78 Accepts]: Start accepts. Automaton has 807 states and 1037 transitions. Word has length 192 [2019-10-13 23:09:28,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:09:28,524 INFO L462 AbstractCegarLoop]: Abstraction has 807 states and 1037 transitions. [2019-10-13 23:09:28,524 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-13 23:09:28,525 INFO L276 IsEmpty]: Start isEmpty. Operand 807 states and 1037 transitions. [2019-10-13 23:09:28,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2019-10-13 23:09:28,532 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:09:28,532 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:09:28,533 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:09:28,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:09:28,534 INFO L82 PathProgramCache]: Analyzing trace with hash 1037126365, now seen corresponding path program 1 times [2019-10-13 23:09:28,534 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:09:28,534 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128003018] [2019-10-13 23:09:28,540 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:28,540 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:28,541 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:09:28,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:09:29,674 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-10-13 23:09:29,674 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128003018] [2019-10-13 23:09:29,674 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:09:29,674 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2019-10-13 23:09:29,675 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148387828] [2019-10-13 23:09:29,675 INFO L442 AbstractCegarLoop]: Interpolant automaton has 33 states [2019-10-13 23:09:29,675 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:09:29,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2019-10-13 23:09:29,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=969, Unknown=0, NotChecked=0, Total=1056 [2019-10-13 23:09:29,676 INFO L87 Difference]: Start difference. First operand 807 states and 1037 transitions. Second operand 33 states. [2019-10-13 23:09:45,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:09:45,368 INFO L93 Difference]: Finished difference Result 1911 states and 2430 transitions. [2019-10-13 23:09:45,369 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2019-10-13 23:09:45,369 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 194 [2019-10-13 23:09:45,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:09:45,378 INFO L225 Difference]: With dead ends: 1911 [2019-10-13 23:09:45,378 INFO L226 Difference]: Without dead ends: 1431 [2019-10-13 23:09:45,382 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 617 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=315, Invalid=3975, Unknown=0, NotChecked=0, Total=4290 [2019-10-13 23:09:45,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1431 states. [2019-10-13 23:09:45,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1431 to 1411. [2019-10-13 23:09:45,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1411 states. [2019-10-13 23:09:45,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1411 states to 1411 states and 1808 transitions. [2019-10-13 23:09:45,459 INFO L78 Accepts]: Start accepts. Automaton has 1411 states and 1808 transitions. Word has length 194 [2019-10-13 23:09:45,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:09:45,460 INFO L462 AbstractCegarLoop]: Abstraction has 1411 states and 1808 transitions. [2019-10-13 23:09:45,460 INFO L463 AbstractCegarLoop]: Interpolant automaton has 33 states. [2019-10-13 23:09:45,460 INFO L276 IsEmpty]: Start isEmpty. Operand 1411 states and 1808 transitions. [2019-10-13 23:09:45,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2019-10-13 23:09:45,465 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:09:45,465 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:09:45,466 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:09:45,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:09:45,466 INFO L82 PathProgramCache]: Analyzing trace with hash 2100859293, now seen corresponding path program 1 times [2019-10-13 23:09:45,466 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:09:45,466 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232707711] [2019-10-13 23:09:45,467 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:45,467 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:45,467 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:09:45,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat