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_spec7_product30.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:16:37,094 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:16:37,096 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:16:37,112 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:16:37,112 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:16:37,115 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:16:37,117 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:16:37,127 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:16:37,130 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:16:37,131 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:16:37,133 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:16:37,135 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:16:37,135 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:16:37,138 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:16:37,141 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:16:37,142 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:16:37,143 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:16:37,144 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:16:37,148 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:16:37,154 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:16:37,158 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:16:37,161 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:16:37,162 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:16:37,163 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:16:37,168 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 03:16:37,168 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 03:16:37,168 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 03:16:37,170 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 03:16:37,171 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 03:16:37,172 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 03:16:37,173 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:16:37,174 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:16:37,174 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:16:37,175 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:16:37,176 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:16:37,177 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:16:37,178 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:16:37,178 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:16:37,178 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:16:37,179 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:16:37,181 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:16:37,181 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 03:16:37,215 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:16:37,215 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:16:37,217 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:16:37,217 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:16:37,220 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:16:37,221 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:16:37,221 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:16:37,221 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:16:37,221 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:16:37,221 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:16:37,222 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:16:37,222 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:16:37,222 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:16:37,222 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:16:37,222 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:16:37,223 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:16:37,223 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:16:37,223 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:16:37,225 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:16:37,225 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:16:37,225 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:16:37,226 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:16:37,226 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:16:37,226 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:16:37,226 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:16:37,227 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:16:37,227 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:16:37,227 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:16:37,227 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-15 03:16:37,557 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:16:37,580 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:16:37,584 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:16:37,586 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:16:37,586 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:16:37,587 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec7_product30.cil.c [2019-10-15 03:16:37,669 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4fa33cbf9/71b8cfcfb78d4f9f9864852557662a47/FLAGc123f1212 [2019-10-15 03:16:38,312 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:16:38,313 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec7_product30.cil.c [2019-10-15 03:16:38,344 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4fa33cbf9/71b8cfcfb78d4f9f9864852557662a47/FLAGc123f1212 [2019-10-15 03:16:38,493 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4fa33cbf9/71b8cfcfb78d4f9f9864852557662a47 [2019-10-15 03:16:38,506 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:16:38,508 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:16:38,514 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:16:38,514 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:16:38,518 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:16:38,519 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:16:38" (1/1) ... [2019-10-15 03:16:38,522 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6608a0f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:16:38, skipping insertion in model container [2019-10-15 03:16:38,522 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:16:38" (1/1) ... [2019-10-15 03:16:38,531 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:16:38,633 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:16:39,362 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:16:39,387 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:16:39,547 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:16:39,653 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:16:39,653 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:16:39 WrapperNode [2019-10-15 03:16:39,653 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:16:39,654 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:16:39,654 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:16:39,654 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:16:39,668 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:16:39" (1/1) ... [2019-10-15 03:16:39,668 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:16:39" (1/1) ... [2019-10-15 03:16:39,723 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:16:39" (1/1) ... [2019-10-15 03:16:39,723 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:16:39" (1/1) ... [2019-10-15 03:16:39,805 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:16:39" (1/1) ... [2019-10-15 03:16:39,826 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:16:39" (1/1) ... [2019-10-15 03:16:39,837 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:16:39" (1/1) ... [2019-10-15 03:16:39,854 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:16:39,855 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:16:39,855 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:16:39,855 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:16:39,857 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:16:39" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:16:39,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:16:39,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:16:39,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 03:16:39,922 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 03:16:39,922 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 03:16:39,922 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 03:16:39,923 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 03:16:39,923 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 03:16:39,923 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 03:16:39,923 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 03:16:39,924 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 03:16:39,924 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 03:16:39,924 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 03:16:39,924 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 03:16:39,925 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 03:16:39,925 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 03:16:39,925 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 03:16:39,925 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 03:16:39,925 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 03:16:39,926 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 03:16:39,926 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 03:16:39,926 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 03:16:39,926 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 03:16:39,927 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 03:16:39,927 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 03:16:39,927 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 03:16:39,927 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 03:16:39,927 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 03:16:39,928 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 03:16:39,928 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 03:16:39,928 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 03:16:39,928 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptVerify_spec__1 [2019-10-15 03:16:39,928 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 03:16:39,929 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 03:16:39,929 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 03:16:39,929 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 03:16:39,929 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 03:16:39,929 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 03:16:39,930 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 03:16:39,930 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 03:16:39,930 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 03:16:39,930 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 03:16:39,930 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 03:16:39,930 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 03:16:39,930 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 03:16:39,931 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 03:16:39,931 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 03:16:39,931 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 03:16:39,931 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 03:16:39,931 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 03:16:39,931 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 03:16:39,931 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 03:16:39,931 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 03:16:39,932 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 03:16:39,932 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 03:16:39,932 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 03:16:39,932 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 03:16:39,932 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 03:16:39,932 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 03:16:39,932 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 03:16:39,933 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 03:16:39,933 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 03:16:39,933 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 03:16:39,933 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 03:16:39,933 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 03:16:39,934 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 03:16:39,934 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 03:16:39,934 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 03:16:39,934 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 03:16:39,934 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-15 03:16:39,934 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 03:16:39,934 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 03:16:39,934 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-15 03:16:39,935 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-15 03:16:39,935 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-15 03:16:39,935 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 03:16:39,935 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 03:16:39,935 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 03:16:39,935 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 03:16:39,936 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 03:16:39,936 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 03:16:39,936 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 03:16:39,936 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 03:16:39,936 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 03:16:39,936 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-15 03:16:39,937 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-15 03:16:39,937 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-15 03:16:39,937 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 03:16:39,937 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AutoResponder [2019-10-15 03:16:39,937 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-15 03:16:39,937 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 03:16:39,937 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 03:16:39,938 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 03:16:39,938 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 03:16:39,938 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 03:16:39,938 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 03:16:39,938 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 03:16:39,938 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 03:16:39,938 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 03:16:39,938 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 03:16:39,939 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 03:16:39,939 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 03:16:39,939 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 03:16:39,939 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 03:16:39,939 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:16:39,939 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 03:16:39,939 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 03:16:39,939 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 03:16:39,939 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 03:16:39,940 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 03:16:39,940 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 03:16:39,940 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 03:16:39,940 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 03:16:39,940 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 03:16:39,940 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-15 03:16:39,940 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:16:39,940 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:16:39,940 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 03:16:39,941 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 03:16:39,941 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 03:16:39,941 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 03:16:39,941 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 03:16:39,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 03:16:39,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 03:16:39,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 03:16:39,942 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 03:16:39,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 03:16:39,942 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 03:16:39,942 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 03:16:39,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 03:16:39,942 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 03:16:39,943 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 03:16:39,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 03:16:39,943 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 03:16:39,943 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 03:16:39,943 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-15 03:16:39,943 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 03:16:39,944 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 03:16:39,944 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 03:16:39,944 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 03:16:39,944 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 03:16:39,944 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 03:16:39,944 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 03:16:39,944 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 03:16:39,945 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 03:16:39,945 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 03:16:39,945 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 03:16:39,945 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 03:16:39,945 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 03:16:39,945 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 03:16:39,945 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 03:16:39,946 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 03:16:39,946 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 03:16:39,946 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 03:16:39,946 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 03:16:39,946 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 03:16:39,946 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 03:16:39,946 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 03:16:39,947 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 03:16:39,947 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 03:16:39,947 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 03:16:39,947 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 03:16:39,947 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 03:16:39,947 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 03:16:39,947 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 03:16:39,948 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 03:16:39,948 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 03:16:39,948 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptVerify_spec__1 [2019-10-15 03:16:39,948 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 03:16:39,951 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 03:16:39,951 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 03:16:39,952 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 03:16:39,952 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 03:16:39,952 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 03:16:39,952 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 03:16:39,952 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 03:16:39,952 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 03:16:39,952 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 03:16:39,953 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 03:16:39,953 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 03:16:39,953 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 03:16:39,953 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 03:16:39,953 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 03:16:39,953 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 03:16:39,953 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 03:16:39,954 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 03:16:39,954 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 03:16:39,954 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 03:16:39,954 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 03:16:39,954 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 03:16:39,954 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 03:16:39,955 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 03:16:39,955 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 03:16:39,955 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 03:16:39,955 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 03:16:39,956 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 03:16:39,956 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 03:16:39,956 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 03:16:39,956 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 03:16:39,956 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 03:16:39,957 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 03:16:39,957 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 03:16:39,957 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 03:16:39,957 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 03:16:39,957 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 03:16:39,957 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 03:16:39,957 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 03:16:39,957 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 03:16:39,957 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 03:16:39,958 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 03:16:39,958 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 03:16:39,958 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 03:16:39,958 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 03:16:39,959 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 03:16:39,959 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 03:16:39,960 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 03:16:39,960 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 03:16:39,960 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-15 03:16:39,960 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-15 03:16:39,960 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-15 03:16:39,960 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 03:16:39,960 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-15 03:16:39,961 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-15 03:16:39,961 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-15 03:16:39,961 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-15 03:16:39,961 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 03:16:39,961 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 03:16:39,961 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 03:16:39,961 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AutoResponder [2019-10-15 03:16:39,962 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-15 03:16:39,962 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 03:16:39,962 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 03:16:39,962 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 03:16:39,962 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 03:16:39,962 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 03:16:39,962 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 03:16:39,963 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:16:39,963 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 03:16:39,963 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 03:16:39,963 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 03:16:39,963 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 03:16:39,964 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 03:16:39,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:16:39,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 03:16:39,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:16:44,470 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:16:44,471 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 03:16:44,472 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:16:44 BoogieIcfgContainer [2019-10-15 03:16:44,473 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:16:44,474 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:16:44,474 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:16:44,477 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:16:44,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:16:38" (1/3) ... [2019-10-15 03:16:44,478 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@134f86c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:16:44, skipping insertion in model container [2019-10-15 03:16:44,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:16:39" (2/3) ... [2019-10-15 03:16:44,479 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@134f86c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:16:44, skipping insertion in model container [2019-10-15 03:16:44,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:16:44" (3/3) ... [2019-10-15 03:16:44,481 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec7_product30.cil.c [2019-10-15 03:16:44,489 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:16:44,497 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:16:44,507 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:16:44,537 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:16:44,537 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:16:44,538 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:16:44,538 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:16:44,538 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:16:44,538 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:16:44,538 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:16:44,539 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:16:44,568 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states. [2019-10-15 03:16:44,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2019-10-15 03:16:44,586 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:16:44,587 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:16:44,589 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:16:44,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:16:44,595 INFO L82 PathProgramCache]: Analyzing trace with hash -411168799, now seen corresponding path program 1 times [2019-10-15 03:16:44,606 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:16:44,606 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593023767] [2019-10-15 03:16:44,606 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:44,607 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:44,607 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:16:45,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:16:45,328 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 03:16:45,329 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593023767] [2019-10-15 03:16:45,331 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:16:45,331 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 03:16:45,332 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140692647] [2019-10-15 03:16:45,340 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 03:16:45,341 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:16:45,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 03:16:45,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:16:45,358 INFO L87 Difference]: Start difference. First operand 395 states. Second operand 2 states. [2019-10-15 03:16:45,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:16:45,426 INFO L93 Difference]: Finished difference Result 556 states and 659 transitions. [2019-10-15 03:16:45,426 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 03:16:45,428 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 145 [2019-10-15 03:16:45,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:16:45,447 INFO L225 Difference]: With dead ends: 556 [2019-10-15 03:16:45,447 INFO L226 Difference]: Without dead ends: 353 [2019-10-15 03:16:45,453 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:16:45,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2019-10-15 03:16:45,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 353. [2019-10-15 03:16:45,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 353 states. [2019-10-15 03:16:45,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 416 transitions. [2019-10-15 03:16:45,539 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 416 transitions. Word has length 145 [2019-10-15 03:16:45,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:16:45,541 INFO L462 AbstractCegarLoop]: Abstraction has 353 states and 416 transitions. [2019-10-15 03:16:45,541 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 03:16:45,542 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 416 transitions. [2019-10-15 03:16:45,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2019-10-15 03:16:45,548 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:16:45,548 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] [2019-10-15 03:16:45,548 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:16:45,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:16:45,549 INFO L82 PathProgramCache]: Analyzing trace with hash -2114721749, now seen corresponding path program 1 times [2019-10-15 03:16:45,549 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:16:45,549 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772990234] [2019-10-15 03:16:45,550 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:45,550 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:45,550 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:16:45,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:16:45,785 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 03:16:45,785 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772990234] [2019-10-15 03:16:45,785 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:16:45,786 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:16:45,786 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841428083] [2019-10-15 03:16:45,788 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:16:45,788 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:16:45,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:16:45,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:16:45,789 INFO L87 Difference]: Start difference. First operand 353 states and 416 transitions. Second operand 3 states. [2019-10-15 03:16:45,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:16:45,867 INFO L93 Difference]: Finished difference Result 541 states and 627 transitions. [2019-10-15 03:16:45,868 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:16:45,868 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 146 [2019-10-15 03:16:45,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:16:45,873 INFO L225 Difference]: With dead ends: 541 [2019-10-15 03:16:45,873 INFO L226 Difference]: Without dead ends: 355 [2019-10-15 03:16:45,876 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:16:45,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2019-10-15 03:16:45,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 355. [2019-10-15 03:16:45,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 355 states. [2019-10-15 03:16:45,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 418 transitions. [2019-10-15 03:16:45,920 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 418 transitions. Word has length 146 [2019-10-15 03:16:45,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:16:45,922 INFO L462 AbstractCegarLoop]: Abstraction has 355 states and 418 transitions. [2019-10-15 03:16:45,922 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:16:45,922 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 418 transitions. [2019-10-15 03:16:45,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2019-10-15 03:16:45,926 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:16:45,927 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] [2019-10-15 03:16:45,928 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:16:45,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:16:45,929 INFO L82 PathProgramCache]: Analyzing trace with hash 386551375, now seen corresponding path program 1 times [2019-10-15 03:16:45,929 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:16:45,929 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510791276] [2019-10-15 03:16:45,930 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:45,930 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:45,930 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:16:46,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:16:46,231 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 03:16:46,232 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510791276] [2019-10-15 03:16:46,232 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:16:46,232 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:16:46,232 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135543548] [2019-10-15 03:16:46,233 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:16:46,233 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:16:46,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:16:46,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:16:46,234 INFO L87 Difference]: Start difference. First operand 355 states and 418 transitions. Second operand 3 states. [2019-10-15 03:16:46,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:16:46,268 INFO L93 Difference]: Finished difference Result 692 states and 843 transitions. [2019-10-15 03:16:46,268 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:16:46,268 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 155 [2019-10-15 03:16:46,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:16:46,272 INFO L225 Difference]: With dead ends: 692 [2019-10-15 03:16:46,273 INFO L226 Difference]: Without dead ends: 395 [2019-10-15 03:16:46,275 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:16:46,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2019-10-15 03:16:46,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 394. [2019-10-15 03:16:46,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2019-10-15 03:16:46,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 486 transitions. [2019-10-15 03:16:46,308 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 486 transitions. Word has length 155 [2019-10-15 03:16:46,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:16:46,310 INFO L462 AbstractCegarLoop]: Abstraction has 394 states and 486 transitions. [2019-10-15 03:16:46,311 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:16:46,311 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 486 transitions. [2019-10-15 03:16:46,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2019-10-15 03:16:46,318 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:16:46,319 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] [2019-10-15 03:16:46,325 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:16:46,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:16:46,326 INFO L82 PathProgramCache]: Analyzing trace with hash -1150213139, now seen corresponding path program 1 times [2019-10-15 03:16:46,326 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:16:46,327 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515688770] [2019-10-15 03:16:46,329 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:46,330 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:46,330 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:16:46,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:16:46,560 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 03:16:46,564 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515688770] [2019-10-15 03:16:46,564 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:16:46,564 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:16:46,565 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758360368] [2019-10-15 03:16:46,567 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:16:46,567 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:16:46,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:16:46,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:16:46,568 INFO L87 Difference]: Start difference. First operand 394 states and 486 transitions. Second operand 3 states. [2019-10-15 03:16:46,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:16:46,624 INFO L93 Difference]: Finished difference Result 806 states and 1042 transitions. [2019-10-15 03:16:46,625 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:16:46,625 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 156 [2019-10-15 03:16:46,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:16:46,635 INFO L225 Difference]: With dead ends: 806 [2019-10-15 03:16:46,635 INFO L226 Difference]: Without dead ends: 470 [2019-10-15 03:16:46,637 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:16:46,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2019-10-15 03:16:46,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 469. [2019-10-15 03:16:46,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 469 states. [2019-10-15 03:16:46,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 616 transitions. [2019-10-15 03:16:46,690 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 616 transitions. Word has length 156 [2019-10-15 03:16:46,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:16:46,691 INFO L462 AbstractCegarLoop]: Abstraction has 469 states and 616 transitions. [2019-10-15 03:16:46,691 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:16:46,691 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 616 transitions. [2019-10-15 03:16:46,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2019-10-15 03:16:46,696 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:16:46,696 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] [2019-10-15 03:16:46,697 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:16:46,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:16:46,697 INFO L82 PathProgramCache]: Analyzing trace with hash -1337878609, now seen corresponding path program 1 times [2019-10-15 03:16:46,697 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:16:46,698 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694503559] [2019-10-15 03:16:46,698 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:46,699 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:46,699 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:16:46,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:16:46,896 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 03:16:46,897 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694503559] [2019-10-15 03:16:46,897 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:16:46,898 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:16:46,898 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771073083] [2019-10-15 03:16:46,898 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:16:46,899 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:16:46,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:16:46,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:16:46,899 INFO L87 Difference]: Start difference. First operand 469 states and 616 transitions. Second operand 3 states. [2019-10-15 03:16:46,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:16:46,936 INFO L93 Difference]: Finished difference Result 1025 states and 1422 transitions. [2019-10-15 03:16:46,937 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:16:46,937 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 157 [2019-10-15 03:16:46,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:16:46,943 INFO L225 Difference]: With dead ends: 1025 [2019-10-15 03:16:46,943 INFO L226 Difference]: Without dead ends: 614 [2019-10-15 03:16:46,945 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:16:46,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 614 states. [2019-10-15 03:16:46,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 614 to 613. [2019-10-15 03:16:46,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 613 states. [2019-10-15 03:16:46,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 613 states to 613 states and 864 transitions. [2019-10-15 03:16:46,992 INFO L78 Accepts]: Start accepts. Automaton has 613 states and 864 transitions. Word has length 157 [2019-10-15 03:16:46,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:16:46,992 INFO L462 AbstractCegarLoop]: Abstraction has 613 states and 864 transitions. [2019-10-15 03:16:46,992 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:16:46,992 INFO L276 IsEmpty]: Start isEmpty. Operand 613 states and 864 transitions. [2019-10-15 03:16:46,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2019-10-15 03:16:46,998 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:16:46,999 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] [2019-10-15 03:16:46,999 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:16:46,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:16:47,000 INFO L82 PathProgramCache]: Analyzing trace with hash 497503347, now seen corresponding path program 1 times [2019-10-15 03:16:47,000 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:16:47,000 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110137174] [2019-10-15 03:16:47,001 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:47,001 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:47,001 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:16:47,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:16:48,075 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-15 03:16:48,076 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110137174] [2019-10-15 03:16:48,077 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:16:48,078 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2019-10-15 03:16:48,078 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583336892] [2019-10-15 03:16:48,079 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2019-10-15 03:16:48,079 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:16:48,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2019-10-15 03:16:48,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2019-10-15 03:16:48,081 INFO L87 Difference]: Start difference. First operand 613 states and 864 transitions. Second operand 28 states. [2019-10-15 03:16:56,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:16:56,538 INFO L93 Difference]: Finished difference Result 1041 states and 1381 transitions. [2019-10-15 03:16:56,539 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2019-10-15 03:16:56,539 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 159 [2019-10-15 03:16:56,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:16:56,545 INFO L225 Difference]: With dead ends: 1041 [2019-10-15 03:16:56,545 INFO L226 Difference]: Without dead ends: 833 [2019-10-15 03:16:56,547 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=170, Invalid=1900, Unknown=0, NotChecked=0, Total=2070 [2019-10-15 03:16:56,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 833 states. [2019-10-15 03:16:56,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 833 to 821. [2019-10-15 03:16:56,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 821 states. [2019-10-15 03:16:56,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 821 states to 821 states and 1110 transitions. [2019-10-15 03:16:56,586 INFO L78 Accepts]: Start accepts. Automaton has 821 states and 1110 transitions. Word has length 159 [2019-10-15 03:16:56,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:16:56,587 INFO L462 AbstractCegarLoop]: Abstraction has 821 states and 1110 transitions. [2019-10-15 03:16:56,587 INFO L463 AbstractCegarLoop]: Interpolant automaton has 28 states. [2019-10-15 03:16:56,587 INFO L276 IsEmpty]: Start isEmpty. Operand 821 states and 1110 transitions. [2019-10-15 03:16:56,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2019-10-15 03:16:56,591 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:16:56,591 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] [2019-10-15 03:16:56,592 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:16:56,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:16:56,592 INFO L82 PathProgramCache]: Analyzing trace with hash 853579315, now seen corresponding path program 1 times [2019-10-15 03:16:56,592 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:16:56,593 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908239713] [2019-10-15 03:16:56,593 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:56,593 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:56,593 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:16:56,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:16:56,837 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-15 03:16:56,838 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908239713] [2019-10-15 03:16:56,838 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:16:56,838 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-15 03:16:56,839 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291760775] [2019-10-15 03:16:56,839 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-15 03:16:56,839 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:16:56,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-15 03:16:56,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-15 03:16:56,840 INFO L87 Difference]: Start difference. First operand 821 states and 1110 transitions. Second operand 10 states. [2019-10-15 03:16:56,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:16:56,923 INFO L93 Difference]: Finished difference Result 830 states and 1120 transitions. [2019-10-15 03:16:56,923 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-15 03:16:56,924 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 163 [2019-10-15 03:16:56,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:16:56,933 INFO L225 Difference]: With dead ends: 830 [2019-10-15 03:16:56,933 INFO L226 Difference]: Without dead ends: 825 [2019-10-15 03:16:56,934 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 [2019-10-15 03:16:56,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 825 states. [2019-10-15 03:16:56,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 825 to 825. [2019-10-15 03:16:56,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 825 states. [2019-10-15 03:16:56,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 825 states to 825 states and 1113 transitions. [2019-10-15 03:16:56,994 INFO L78 Accepts]: Start accepts. Automaton has 825 states and 1113 transitions. Word has length 163 [2019-10-15 03:16:56,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:16:56,995 INFO L462 AbstractCegarLoop]: Abstraction has 825 states and 1113 transitions. [2019-10-15 03:16:56,995 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-15 03:16:56,996 INFO L276 IsEmpty]: Start isEmpty. Operand 825 states and 1113 transitions. [2019-10-15 03:16:56,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2019-10-15 03:16:57,000 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:16:57,000 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] [2019-10-15 03:16:57,000 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:16:57,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:16:57,001 INFO L82 PathProgramCache]: Analyzing trace with hash 1264641729, now seen corresponding path program 1 times [2019-10-15 03:16:57,001 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:16:57,001 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471075066] [2019-10-15 03:16:57,001 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:57,002 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:57,002 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:16:57,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:16:57,669 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-15 03:16:57,669 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471075066] [2019-10-15 03:16:57,670 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1125765142] [2019-10-15 03:16:57,670 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:16:58,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:16:58,352 INFO L256 TraceCheckSpWp]: Trace formula consists of 2748 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-15 03:16:58,370 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:16:58,605 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 03:16:58,605 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:16:58,874 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 03:16:58,875 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1247930424] [2019-10-15 03:16:58,904 INFO L162 IcfgInterpreter]: Started Sifa with 150 locations of interest [2019-10-15 03:16:58,904 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 03:16:58,910 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 03:16:58,917 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 03:16:58,917 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs