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_spec0_product21.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:05:56,996 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:05:56,999 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:05:57,018 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:05:57,018 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:05:57,021 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:05:57,023 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:05:57,035 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:05:57,037 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:05:57,038 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:05:57,040 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:05:57,041 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:05:57,041 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:05:57,045 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:05:57,047 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:05:57,048 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:05:57,050 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:05:57,053 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:05:57,054 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:05:57,060 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:05:57,065 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:05:57,068 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:05:57,069 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:05:57,070 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:05:57,076 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:05:57,076 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:05:57,076 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:05:57,078 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:05:57,079 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:05:57,081 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:05:57,081 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:05:57,083 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:05:57,083 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:05:57,084 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:05:57,086 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:05:57,086 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:05:57,087 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:05:57,087 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:05:57,088 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:05:57,088 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:05:57,090 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:05:57,091 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 23:05:57,111 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:05:57,111 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:05:57,113 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:05:57,113 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:05:57,113 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:05:57,113 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:05:57,114 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:05:57,114 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:05:57,114 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:05:57,114 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:05:57,115 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:05:57,116 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:05:57,116 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:05:57,116 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:05:57,116 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:05:57,117 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:05:57,117 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:05:57,117 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:05:57,117 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:05:57,117 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:05:57,118 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:05:57,118 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:05:57,118 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:05:57,118 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:05:57,119 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:05:57,119 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:05:57,119 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:05:57,119 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:05:57,119 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 23:05:57,429 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:05:57,442 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:05:57,446 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:05:57,447 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:05:57,448 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:05:57,448 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec0_product21.cil.c [2019-10-13 23:05:57,514 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94c69169c/32e93519ecb0452ca634745c96044f8b/FLAG464a8b2b8 [2019-10-13 23:05:58,106 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:05:58,107 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec0_product21.cil.c [2019-10-13 23:05:58,130 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94c69169c/32e93519ecb0452ca634745c96044f8b/FLAG464a8b2b8 [2019-10-13 23:05:58,398 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94c69169c/32e93519ecb0452ca634745c96044f8b [2019-10-13 23:05:58,408 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:05:58,410 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:05:58,411 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:05:58,412 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:05:58,416 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:05:58,417 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:05:58" (1/1) ... [2019-10-13 23:05:58,420 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61723928 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:05:58, skipping insertion in model container [2019-10-13 23:05:58,420 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:05:58" (1/1) ... [2019-10-13 23:05:58,427 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:05:58,503 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:05:59,295 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:05:59,322 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:05:59,450 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:05:59,551 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:05:59,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:05:59 WrapperNode [2019-10-13 23:05:59,552 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:05:59,553 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:05:59,553 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:05:59,553 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:05:59,572 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:05:59" (1/1) ... [2019-10-13 23:05:59,573 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:05:59" (1/1) ... [2019-10-13 23:05:59,606 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:05:59" (1/1) ... [2019-10-13 23:05:59,606 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:05:59" (1/1) ... [2019-10-13 23:05:59,683 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:05:59" (1/1) ... [2019-10-13 23:05:59,716 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:05:59" (1/1) ... [2019-10-13 23:05:59,727 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:05:59" (1/1) ... [2019-10-13 23:05:59,741 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:05:59,742 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:05:59,742 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:05:59,743 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:05:59,744 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:05:59" (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 23:05:59,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:05:59,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:05:59,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:05:59,826 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 23:05:59,826 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 23:05:59,827 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 23:05:59,828 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 23:05:59,828 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 23:05:59,828 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 23:05:59,829 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 23:05:59,829 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 23:05:59,830 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 23:05:59,830 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 23:05:59,830 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 23:05:59,831 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 23:05:59,831 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 23:05:59,833 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 23:05:59,834 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 23:05:59,834 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 23:05:59,834 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 23:05:59,834 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 23:05:59,835 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 23:05:59,835 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 23:05:59,835 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 23:05:59,835 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 23:05:59,836 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 23:05:59,836 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 23:05:59,836 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 23:05:59,836 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 23:05:59,836 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 23:05:59,837 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 23:05:59,837 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 23:05:59,837 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 23:05:59,837 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 23:05:59,837 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 23:05:59,837 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 23:05:59,838 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 23:05:59,838 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 23:05:59,838 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 23:05:59,838 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 23:05:59,838 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 23:05:59,839 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 23:05:59,839 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 23:05:59,839 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 23:05:59,839 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 23:05:59,839 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 23:05:59,839 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 23:05:59,840 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 23:05:59,840 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 23:05:59,840 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 23:05:59,840 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 23:05:59,840 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 23:05:59,841 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 23:05:59,841 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 23:05:59,841 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:05:59,841 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:05:59,841 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:05:59,841 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:05:59,842 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:05:59,842 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:05:59,842 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:05:59,842 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:05:59,842 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:05:59,843 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:05:59,843 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:05:59,843 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:05:59,843 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptForward_spec__1 [2019-10-13 23:05:59,843 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 23:05:59,844 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 23:05:59,844 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 23:05:59,844 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 23:05:59,844 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 23:05:59,844 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 23:05:59,844 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 23:05:59,845 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 23:05:59,845 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:05:59,845 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:05:59,845 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 23:05:59,845 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 23:05:59,845 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 23:05:59,846 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 23:05:59,846 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 23:05:59,846 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 23:05:59,846 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 23:05:59,846 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 23:05:59,846 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 23:05:59,847 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-13 23:05:59,847 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-13 23:05:59,847 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 23:05:59,847 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 23:05:59,847 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-13 23:05:59,847 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 23:05:59,847 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 23:05:59,848 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AddressBook [2019-10-13 23:05:59,848 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-13 23:05:59,848 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 23:05:59,848 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 23:05:59,848 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 23:05:59,848 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 23:05:59,849 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 23:05:59,849 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 23:05:59,849 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 23:05:59,849 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 23:05:59,849 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 23:05:59,849 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-13 23:05:59,849 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-13 23:05:59,850 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 23:05:59,850 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 23:05:59,850 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 23:05:59,850 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 23:05:59,850 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 23:05:59,850 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 23:05:59,850 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:05:59,851 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:05:59,851 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 23:05:59,851 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 23:05:59,851 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 23:05:59,851 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 23:05:59,851 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 23:05:59,852 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 23:05:59,852 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 23:05:59,852 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 23:05:59,852 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 23:05:59,852 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 23:05:59,852 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 23:05:59,852 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 23:05:59,853 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 23:05:59,853 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 23:05:59,853 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 23:05:59,853 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 23:05:59,853 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 23:05:59,853 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 23:05:59,854 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 23:05:59,854 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 23:05:59,854 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 23:05:59,854 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 23:05:59,854 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 23:05:59,854 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 23:05:59,855 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 23:05:59,855 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 23:05:59,855 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 23:05:59,855 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 23:05:59,855 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 23:05:59,855 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:05:59,855 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 23:05:59,856 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:05:59,856 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 23:05:59,856 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 23:05:59,856 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 23:05:59,856 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 23:05:59,856 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 23:05:59,857 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 23:05:59,857 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 23:05:59,857 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 23:05:59,857 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 23:05:59,857 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 23:05:59,857 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 23:05:59,858 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 23:05:59,858 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 23:05:59,858 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 23:05:59,858 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 23:05:59,858 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 23:05:59,858 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 23:05:59,858 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 23:05:59,859 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 23:05:59,859 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 23:05:59,859 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 23:05:59,859 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:05:59,859 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:05:59,859 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:05:59,859 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:05:59,860 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:05:59,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:05:59,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:05:59,860 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:05:59,860 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:05:59,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:05:59,860 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:05:59,861 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:05:59,861 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:05:59,861 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:05:59,861 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:05:59,861 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:05:59,861 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:05:59,861 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:05:59,861 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:05:59,862 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:05:59,862 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:05:59,862 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 23:05:59,862 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 23:05:59,862 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 23:05:59,862 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 23:05:59,862 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-13 23:05:59,863 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 23:05:59,863 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-13 23:05:59,863 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 23:05:59,863 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 23:05:59,863 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 23:05:59,863 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:05:59,863 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 23:05:59,864 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 23:05:59,864 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptForward_spec__1 [2019-10-13 23:05:59,864 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 23:05:59,864 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 23:05:59,864 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 23:05:59,864 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 23:05:59,864 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 23:05:59,865 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 23:05:59,865 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 23:05:59,865 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 23:05:59,865 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 23:05:59,865 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 23:05:59,865 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:05:59,865 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:05:59,866 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 23:05:59,866 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 23:05:59,866 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 23:05:59,866 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 23:05:59,866 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 23:05:59,866 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 23:05:59,866 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 23:05:59,866 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 23:05:59,867 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 23:05:59,867 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 23:05:59,867 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 23:05:59,867 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 23:05:59,867 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 23:05:59,867 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-13 23:05:59,867 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-13 23:05:59,868 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 23:05:59,868 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-13 23:05:59,868 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AddressBook [2019-10-13 23:05:59,868 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-13 23:05:59,868 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 23:05:59,868 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 23:05:59,868 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 23:05:59,869 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:05:59,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:05:59,869 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:06:04,353 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:06:04,354 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 23:06:04,356 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:06:04 BoogieIcfgContainer [2019-10-13 23:06:04,356 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:06:04,357 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:06:04,357 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:06:04,361 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:06:04,362 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:05:58" (1/3) ... [2019-10-13 23:06:04,362 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e1435b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:06:04, skipping insertion in model container [2019-10-13 23:06:04,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:05:59" (2/3) ... [2019-10-13 23:06:04,363 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e1435b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:06:04, skipping insertion in model container [2019-10-13 23:06:04,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:06:04" (3/3) ... [2019-10-13 23:06:04,365 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec0_product21.cil.c [2019-10-13 23:06:04,375 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:06:04,384 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:06:04,396 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:06:04,425 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:06:04,425 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:06:04,425 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:06:04,425 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:06:04,425 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:06:04,425 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:06:04,426 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:06:04,426 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:06:04,453 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states. [2019-10-13 23:06:04,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2019-10-13 23:06:04,472 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:06:04,473 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] [2019-10-13 23:06:04,475 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:06:04,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:06:04,481 INFO L82 PathProgramCache]: Analyzing trace with hash 850924982, now seen corresponding path program 1 times [2019-10-13 23:06:04,488 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:06:04,489 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537453831] [2019-10-13 23:06:04,489 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:06:04,489 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:06:04,489 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:06:04,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:06:05,112 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 23:06:05,113 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537453831] [2019-10-13 23:06:05,114 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:06:05,114 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:06:05,115 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059864461] [2019-10-13 23:06:05,120 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:06:05,121 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:06:05,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:06:05,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:06:05,139 INFO L87 Difference]: Start difference. First operand 390 states. Second operand 2 states. [2019-10-13 23:06:05,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:06:05,205 INFO L93 Difference]: Finished difference Result 562 states and 670 transitions. [2019-10-13 23:06:05,205 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:06:05,207 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 156 [2019-10-13 23:06:05,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:06:05,225 INFO L225 Difference]: With dead ends: 562 [2019-10-13 23:06:05,226 INFO L226 Difference]: Without dead ends: 363 [2019-10-13 23:06:05,232 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 23:06:05,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2019-10-13 23:06:05,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 363. [2019-10-13 23:06:05,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 363 states. [2019-10-13 23:06:05,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 428 transitions. [2019-10-13 23:06:05,321 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 428 transitions. Word has length 156 [2019-10-13 23:06:05,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:06:05,324 INFO L462 AbstractCegarLoop]: Abstraction has 363 states and 428 transitions. [2019-10-13 23:06:05,324 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:06:05,324 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 428 transitions. [2019-10-13 23:06:05,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2019-10-13 23:06:05,336 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:06:05,336 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] [2019-10-13 23:06:05,337 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:06:05,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:06:05,337 INFO L82 PathProgramCache]: Analyzing trace with hash 1759422716, now seen corresponding path program 1 times [2019-10-13 23:06:05,338 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:06:05,338 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109431765] [2019-10-13 23:06:05,338 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:06:05,340 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:06:05,340 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:06:05,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:06:05,665 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 23:06:05,665 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109431765] [2019-10-13 23:06:05,665 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:06:05,666 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:06:05,666 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125435845] [2019-10-13 23:06:05,670 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:06:05,671 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:06:05,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:06:05,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:06:05,671 INFO L87 Difference]: Start difference. First operand 363 states and 428 transitions. Second operand 3 states. [2019-10-13 23:06:05,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:06:05,766 INFO L93 Difference]: Finished difference Result 547 states and 636 transitions. [2019-10-13 23:06:05,767 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:06:05,767 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 157 [2019-10-13 23:06:05,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:06:05,778 INFO L225 Difference]: With dead ends: 547 [2019-10-13 23:06:05,780 INFO L226 Difference]: Without dead ends: 365 [2019-10-13 23:06:05,788 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 23:06:05,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2019-10-13 23:06:05,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 365. [2019-10-13 23:06:05,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 365 states. [2019-10-13 23:06:05,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 430 transitions. [2019-10-13 23:06:05,853 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 430 transitions. Word has length 157 [2019-10-13 23:06:05,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:06:05,854 INFO L462 AbstractCegarLoop]: Abstraction has 365 states and 430 transitions. [2019-10-13 23:06:05,855 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:06:05,855 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 430 transitions. [2019-10-13 23:06:05,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2019-10-13 23:06:05,863 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:06:05,865 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] [2019-10-13 23:06:05,865 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:06:05,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:06:05,866 INFO L82 PathProgramCache]: Analyzing trace with hash 467859541, now seen corresponding path program 1 times [2019-10-13 23:06:05,866 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:06:05,866 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140021248] [2019-10-13 23:06:05,867 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:06:05,867 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:06:05,867 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:06:05,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:06:06,174 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 23:06:06,174 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140021248] [2019-10-13 23:06:06,175 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:06:06,175 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:06:06,175 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949013866] [2019-10-13 23:06:06,176 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:06:06,176 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:06:06,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:06:06,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:06:06,177 INFO L87 Difference]: Start difference. First operand 365 states and 430 transitions. Second operand 3 states. [2019-10-13 23:06:06,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:06:06,209 INFO L93 Difference]: Finished difference Result 714 states and 870 transitions. [2019-10-13 23:06:06,209 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:06:06,209 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 162 [2019-10-13 23:06:06,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:06:06,213 INFO L225 Difference]: With dead ends: 714 [2019-10-13 23:06:06,213 INFO L226 Difference]: Without dead ends: 407 [2019-10-13 23:06:06,215 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 23:06:06,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2019-10-13 23:06:06,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 406. [2019-10-13 23:06:06,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 406 states. [2019-10-13 23:06:06,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 501 transitions. [2019-10-13 23:06:06,241 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 501 transitions. Word has length 162 [2019-10-13 23:06:06,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:06:06,242 INFO L462 AbstractCegarLoop]: Abstraction has 406 states and 501 transitions. [2019-10-13 23:06:06,242 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:06:06,242 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 501 transitions. [2019-10-13 23:06:06,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2019-10-13 23:06:06,246 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:06:06,246 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] [2019-10-13 23:06:06,246 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:06:06,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:06:06,247 INFO L82 PathProgramCache]: Analyzing trace with hash -1903128941, now seen corresponding path program 1 times [2019-10-13 23:06:06,247 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:06:06,247 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636310496] [2019-10-13 23:06:06,248 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:06:06,248 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:06:06,248 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:06:06,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:06:07,081 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 23:06:07,082 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636310496] [2019-10-13 23:06:07,082 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:06:07,082 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2019-10-13 23:06:07,082 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866225016] [2019-10-13 23:06:07,083 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2019-10-13 23:06:07,083 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:06:07,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2019-10-13 23:06:07,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2019-10-13 23:06:07,085 INFO L87 Difference]: Start difference. First operand 406 states and 501 transitions. Second operand 28 states. [2019-10-13 23:06:15,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:06:15,800 INFO L93 Difference]: Finished difference Result 830 states and 1024 transitions. [2019-10-13 23:06:15,800 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2019-10-13 23:06:15,800 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 163 [2019-10-13 23:06:15,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:06:15,807 INFO L225 Difference]: With dead ends: 830 [2019-10-13 23:06:15,807 INFO L226 Difference]: Without dead ends: 658 [2019-10-13 23:06:15,809 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=170, Invalid=1900, Unknown=0, NotChecked=0, Total=2070 [2019-10-13 23:06:15,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2019-10-13 23:06:15,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 646. [2019-10-13 23:06:15,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 646 states. [2019-10-13 23:06:15,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 646 states to 646 states and 800 transitions. [2019-10-13 23:06:15,849 INFO L78 Accepts]: Start accepts. Automaton has 646 states and 800 transitions. Word has length 163 [2019-10-13 23:06:15,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:06:15,850 INFO L462 AbstractCegarLoop]: Abstraction has 646 states and 800 transitions. [2019-10-13 23:06:15,850 INFO L463 AbstractCegarLoop]: Interpolant automaton has 28 states. [2019-10-13 23:06:15,850 INFO L276 IsEmpty]: Start isEmpty. Operand 646 states and 800 transitions. [2019-10-13 23:06:15,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2019-10-13 23:06:15,854 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:06:15,854 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] [2019-10-13 23:06:15,854 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:06:15,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:06:15,855 INFO L82 PathProgramCache]: Analyzing trace with hash -76166860, now seen corresponding path program 1 times [2019-10-13 23:06:15,855 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:06:15,855 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725051031] [2019-10-13 23:06:15,856 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:06:15,856 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:06:15,856 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:06:15,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:06:16,059 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 23:06:16,059 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725051031] [2019-10-13 23:06:16,060 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:06:16,060 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-13 23:06:16,060 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841428071] [2019-10-13 23:06:16,061 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-13 23:06:16,062 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:06:16,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-13 23:06:16,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-13 23:06:16,063 INFO L87 Difference]: Start difference. First operand 646 states and 800 transitions. Second operand 10 states. [2019-10-13 23:06:16,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:06:16,122 INFO L93 Difference]: Finished difference Result 655 states and 811 transitions. [2019-10-13 23:06:16,122 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-13 23:06:16,122 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 167 [2019-10-13 23:06:16,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:06:16,129 INFO L225 Difference]: With dead ends: 655 [2019-10-13 23:06:16,130 INFO L226 Difference]: Without dead ends: 652 [2019-10-13 23:06:16,131 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 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 23:06:16,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 652 states. [2019-10-13 23:06:16,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 652 to 652. [2019-10-13 23:06:16,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 652 states. [2019-10-13 23:06:16,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 652 states to 652 states and 806 transitions. [2019-10-13 23:06:16,169 INFO L78 Accepts]: Start accepts. Automaton has 652 states and 806 transitions. Word has length 167 [2019-10-13 23:06:16,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:06:16,170 INFO L462 AbstractCegarLoop]: Abstraction has 652 states and 806 transitions. [2019-10-13 23:06:16,170 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-13 23:06:16,170 INFO L276 IsEmpty]: Start isEmpty. Operand 652 states and 806 transitions. [2019-10-13 23:06:16,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2019-10-13 23:06:16,173 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:06:16,174 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] [2019-10-13 23:06:16,174 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:06:16,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:06:16,174 INFO L82 PathProgramCache]: Analyzing trace with hash -468017508, now seen corresponding path program 1 times [2019-10-13 23:06:16,175 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:06:16,175 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753398536] [2019-10-13 23:06:16,175 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:06:16,175 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:06:16,175 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:06:16,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:06:17,071 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 23:06:17,072 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753398536] [2019-10-13 23:06:17,072 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1968675767] [2019-10-13 23:06:17,072 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:06:17,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:06:17,645 INFO L256 TraceCheckSpWp]: Trace formula consists of 2758 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-13 23:06:17,662 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:06:17,773 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 23:06:17,774 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:06:18,087 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 23:06:18,088 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [897845896] [2019-10-13 23:06:18,119 INFO L162 IcfgInterpreter]: Started Sifa with 154 locations of interest [2019-10-13 23:06:18,119 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 23:06:18,132 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 23:06:18,140 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 23:06:18,141 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs