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 --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/product-lines/email_spec6_product30.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 21:17:15,187 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:17:15,189 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:17:15,206 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:17:15,206 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:17:15,208 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:17:15,210 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:17:15,213 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:17:15,215 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:17:15,216 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:17:15,216 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:17:15,218 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:17:15,218 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:17:15,219 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:17:15,220 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:17:15,221 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:17:15,224 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:17:15,225 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:17:15,229 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:17:15,231 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:17:15,236 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:17:15,239 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:17:15,240 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:17:15,241 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:17:15,247 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 21:17:15,247 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 21:17:15,247 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 21:17:15,248 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 21:17:15,249 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 21:17:15,250 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 21:17:15,250 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 21:17:15,252 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 21:17:15,253 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 21:17:15,254 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 21:17:15,255 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 21:17:15,256 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 21:17:15,259 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 21:17:15,259 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 21:17:15,259 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:17:15,260 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:17:15,261 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:17:15,263 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 21:17:15,281 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:17:15,281 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:17:15,282 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:17:15,282 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:17:15,283 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:17:15,283 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:17:15,283 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:17:15,283 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:17:15,283 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:17:15,284 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:17:15,284 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:17:15,284 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:17:15,284 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:17:15,284 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:17:15,285 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:17:15,285 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:17:15,285 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:17:15,285 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:17:15,286 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:17:15,286 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:17:15,286 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:17:15,286 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:17:15,286 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:17:15,287 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:17:15,287 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:17:15,287 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:17:15,287 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:17:15,287 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:17:15,288 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-13 21:17:15,581 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:17:15,601 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:17:15,605 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:17:15,606 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:17:15,606 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:17:15,607 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec6_product30.cil.c [2019-10-13 21:17:15,668 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/815424844/7a64283bea9d4e7187260720d98c577b/FLAG10cd8582b [2019-10-13 21:17:16,255 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:17:16,259 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec6_product30.cil.c [2019-10-13 21:17:16,294 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/815424844/7a64283bea9d4e7187260720d98c577b/FLAG10cd8582b [2019-10-13 21:17:16,515 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/815424844/7a64283bea9d4e7187260720d98c577b [2019-10-13 21:17:16,523 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:17:16,525 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:17:16,526 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:17:16,526 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:17:16,528 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:17:16,529 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:17:16" (1/1) ... [2019-10-13 21:17:16,531 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7156f2de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:16, skipping insertion in model container [2019-10-13 21:17:16,531 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:17:16" (1/1) ... [2019-10-13 21:17:16,538 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:17:16,608 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:17:17,371 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:17:17,396 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:17:17,509 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:17:17,599 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:17:17,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:17 WrapperNode [2019-10-13 21:17:17,601 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:17:17,602 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:17:17,602 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:17:17,602 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:17:17,616 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:17" (1/1) ... [2019-10-13 21:17:17,617 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:17" (1/1) ... [2019-10-13 21:17:17,650 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:17" (1/1) ... [2019-10-13 21:17:17,651 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:17" (1/1) ... [2019-10-13 21:17:17,713 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:17" (1/1) ... [2019-10-13 21:17:17,738 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:17" (1/1) ... [2019-10-13 21:17:17,752 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:17" (1/1) ... [2019-10-13 21:17:17,773 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:17:17,773 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:17:17,774 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:17:17,774 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:17:17,775 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:17" (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 21:17:17,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:17:17,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:17:17,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 21:17:17,868 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 21:17:17,868 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 21:17:17,870 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 21:17:17,870 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 21:17:17,870 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 21:17:17,871 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 21:17:17,871 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 21:17:17,872 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 21:17:17,872 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 21:17:17,872 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 21:17:17,874 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 21:17:17,874 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 21:17:17,874 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 21:17:17,877 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 21:17:17,877 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 21:17:17,877 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 21:17:17,877 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 21:17:17,877 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 21:17:17,878 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 21:17:17,878 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 21:17:17,878 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 21:17:17,878 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 21:17:17,879 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 21:17:17,879 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 21:17:17,879 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 21:17:17,879 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 21:17:17,880 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 21:17:17,880 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 21:17:17,880 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 21:17:17,881 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 21:17:17,881 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 21:17:17,881 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 21:17:17,881 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 21:17:17,882 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 21:17:17,882 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 21:17:17,883 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 21:17:17,883 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 21:17:17,883 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 21:17:17,883 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 21:17:17,884 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 21:17:17,884 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 21:17:17,884 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 21:17:17,884 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 21:17:17,884 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 21:17:17,885 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 21:17:17,885 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 21:17:17,885 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 21:17:17,885 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 21:17:17,885 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 21:17:17,885 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 21:17:17,885 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 21:17:17,886 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 21:17:17,886 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 21:17:17,886 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 21:17:17,886 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 21:17:17,886 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-13 21:17:17,886 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-13 21:17:17,886 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 21:17:17,887 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 21:17:17,887 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 21:17:17,887 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-13 21:17:17,887 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 21:17:17,887 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 21:17:17,888 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-13 21:17:17,888 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-13 21:17:17,888 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-13 21:17:17,888 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 21:17:17,889 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 21:17:17,889 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 21:17:17,889 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 21:17:17,890 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 21:17:17,891 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 21:17:17,891 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 21:17:17,891 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 21:17:17,891 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 21:17:17,891 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-13 21:17:17,892 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-13 21:17:17,893 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-13 21:17:17,893 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 21:17:17,893 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AutoResponder [2019-10-13 21:17:17,893 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-13 21:17:17,894 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 21:17:17,894 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 21:17:17,894 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 21:17:17,894 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 21:17:17,895 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 21:17:17,895 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 21:17:17,896 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 21:17:17,896 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 21:17:17,896 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 21:17:17,896 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 21:17:17,896 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 21:17:17,896 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 21:17:17,897 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 21:17:17,897 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 21:17:17,897 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 21:17:17,897 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 21:17:17,897 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 21:17:17,897 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 21:17:17,897 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 21:17:17,898 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 21:17:17,898 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:17:17,898 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 21:17:17,898 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 21:17:17,898 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 21:17:17,898 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 21:17:17,899 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 21:17:17,899 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 21:17:17,899 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 21:17:17,899 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 21:17:17,899 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 21:17:17,899 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-13 21:17:17,899 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 21:17:17,900 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:17:17,900 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 21:17:17,900 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 21:17:17,900 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-13 21:17:17,901 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 21:17:17,901 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 21:17:17,901 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 21:17:17,902 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 21:17:17,903 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 21:17:17,903 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 21:17:17,903 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 21:17:17,903 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 21:17:17,903 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 21:17:17,903 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 21:17:17,904 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 21:17:17,904 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 21:17:17,904 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 21:17:17,904 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 21:17:17,904 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 21:17:17,905 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 21:17:17,905 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 21:17:17,909 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 21:17:17,909 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 21:17:17,909 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 21:17:17,910 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 21:17:17,910 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 21:17:17,910 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 21:17:17,911 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 21:17:17,918 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 21:17:17,918 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 21:17:17,919 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 21:17:17,919 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 21:17:17,919 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 21:17:17,919 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 21:17:17,920 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 21:17:17,920 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 21:17:17,920 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 21:17:17,920 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 21:17:17,921 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 21:17:17,921 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 21:17:17,921 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 21:17:17,921 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 21:17:17,921 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 21:17:17,921 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 21:17:17,921 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 21:17:17,921 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 21:17:17,922 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 21:17:17,922 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 21:17:17,922 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 21:17:17,922 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 21:17:17,922 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 21:17:17,922 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 21:17:17,922 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 21:17:17,923 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 21:17:17,923 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 21:17:17,923 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 21:17:17,923 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 21:17:17,923 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 21:17:17,923 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 21:17:17,924 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 21:17:17,924 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 21:17:17,924 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 21:17:17,924 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 21:17:17,924 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 21:17:17,924 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 21:17:17,924 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 21:17:17,924 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 21:17:17,925 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 21:17:17,925 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 21:17:17,925 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 21:17:17,925 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-13 21:17:17,925 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 21:17:17,925 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-13 21:17:17,925 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 21:17:17,926 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 21:17:17,926 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 21:17:17,926 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 21:17:17,926 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 21:17:17,926 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 21:17:17,926 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 21:17:17,926 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 21:17:17,927 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 21:17:17,927 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 21:17:17,927 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 21:17:17,927 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 21:17:17,927 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 21:17:17,927 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 21:17:17,927 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-13 21:17:17,927 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-13 21:17:17,928 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-13 21:17:17,928 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 21:17:17,928 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-13 21:17:17,928 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-13 21:17:17,928 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-13 21:17:17,928 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-13 21:17:17,928 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 21:17:17,928 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 21:17:17,929 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 21:17:17,929 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AutoResponder [2019-10-13 21:17:17,929 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-13 21:17:17,929 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 21:17:17,929 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 21:17:17,929 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 21:17:17,929 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 21:17:17,930 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 21:17:17,930 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 21:17:17,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 21:17:17,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 21:17:17,930 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 21:17:17,930 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 21:17:17,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 21:17:17,931 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 21:17:17,931 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 21:17:17,931 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 21:17:17,931 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 21:17:17,931 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 21:17:17,931 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 21:17:17,931 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 21:17:17,932 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 21:17:17,932 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 21:17:17,932 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 21:17:17,932 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 21:17:17,932 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:17:17,932 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 21:17:17,933 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 21:17:17,933 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 21:17:17,933 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 21:17:17,933 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 21:17:17,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:17:17,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 21:17:17,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:17:20,064 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:17:20,065 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 21:17:20,066 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:17:20 BoogieIcfgContainer [2019-10-13 21:17:20,067 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:17:20,068 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:17:20,068 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:17:20,071 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:17:20,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:17:16" (1/3) ... [2019-10-13 21:17:20,072 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60fec786 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:17:20, skipping insertion in model container [2019-10-13 21:17:20,072 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:17" (2/3) ... [2019-10-13 21:17:20,073 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60fec786 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:17:20, skipping insertion in model container [2019-10-13 21:17:20,073 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:17:20" (3/3) ... [2019-10-13 21:17:20,075 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec6_product30.cil.c [2019-10-13 21:17:20,085 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:17:20,094 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:17:20,106 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:17:20,142 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:17:20,146 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:17:20,146 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:17:20,146 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:17:20,146 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:17:20,146 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:17:20,147 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:17:20,147 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:17:20,187 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states. [2019-10-13 21:17:20,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2019-10-13 21:17:20,225 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:20,227 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:20,230 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:20,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:20,237 INFO L82 PathProgramCache]: Analyzing trace with hash 2032051797, now seen corresponding path program 1 times [2019-10-13 21:17:20,246 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:20,247 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689167662] [2019-10-13 21:17:20,247 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:20,247 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:20,247 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:20,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:20,912 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-13 21:17:20,913 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689167662] [2019-10-13 21:17:20,914 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:20,914 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 21:17:20,915 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520996220] [2019-10-13 21:17:20,921 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 21:17:20,923 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:20,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 21:17:20,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:17:20,940 INFO L87 Difference]: Start difference. First operand 552 states. Second operand 2 states. [2019-10-13 21:17:21,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:21,028 INFO L93 Difference]: Finished difference Result 790 states and 1043 transitions. [2019-10-13 21:17:21,028 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 21:17:21,030 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 189 [2019-10-13 21:17:21,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:21,052 INFO L225 Difference]: With dead ends: 790 [2019-10-13 21:17:21,053 INFO L226 Difference]: Without dead ends: 501 [2019-10-13 21:17:21,059 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 21:17:21,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2019-10-13 21:17:21,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 501. [2019-10-13 21:17:21,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 501 states. [2019-10-13 21:17:21,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 665 transitions. [2019-10-13 21:17:21,165 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 665 transitions. Word has length 189 [2019-10-13 21:17:21,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:21,169 INFO L462 AbstractCegarLoop]: Abstraction has 501 states and 665 transitions. [2019-10-13 21:17:21,169 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 21:17:21,169 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 665 transitions. [2019-10-13 21:17:21,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2019-10-13 21:17:21,178 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:21,179 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:21,179 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:21,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:21,179 INFO L82 PathProgramCache]: Analyzing trace with hash -990311382, now seen corresponding path program 1 times [2019-10-13 21:17:21,180 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:21,180 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261950702] [2019-10-13 21:17:21,180 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:21,180 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:21,180 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:21,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:21,504 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-13 21:17:21,504 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261950702] [2019-10-13 21:17:21,504 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:21,505 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:17:21,505 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965403056] [2019-10-13 21:17:21,514 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:17:21,514 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:21,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:17:21,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:21,515 INFO L87 Difference]: Start difference. First operand 501 states and 665 transitions. Second operand 3 states. [2019-10-13 21:17:21,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:21,585 INFO L93 Difference]: Finished difference Result 773 states and 1010 transitions. [2019-10-13 21:17:21,586 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:17:21,586 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 190 [2019-10-13 21:17:21,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:21,597 INFO L225 Difference]: With dead ends: 773 [2019-10-13 21:17:21,597 INFO L226 Difference]: Without dead ends: 504 [2019-10-13 21:17:21,603 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 21:17:21,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2019-10-13 21:17:21,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 503. [2019-10-13 21:17:21,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 503 states. [2019-10-13 21:17:21,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 667 transitions. [2019-10-13 21:17:21,639 INFO L78 Accepts]: Start accepts. Automaton has 503 states and 667 transitions. Word has length 190 [2019-10-13 21:17:21,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:21,639 INFO L462 AbstractCegarLoop]: Abstraction has 503 states and 667 transitions. [2019-10-13 21:17:21,640 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:17:21,640 INFO L276 IsEmpty]: Start isEmpty. Operand 503 states and 667 transitions. [2019-10-13 21:17:21,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2019-10-13 21:17:21,645 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:21,646 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:21,646 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:21,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:21,646 INFO L82 PathProgramCache]: Analyzing trace with hash -733983558, now seen corresponding path program 1 times [2019-10-13 21:17:21,647 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:21,647 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406602388] [2019-10-13 21:17:21,647 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:21,647 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:21,647 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:21,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:21,864 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-13 21:17:21,864 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406602388] [2019-10-13 21:17:21,865 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:21,865 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:17:21,865 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16682943] [2019-10-13 21:17:21,866 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:17:21,868 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:21,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:17:21,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:21,869 INFO L87 Difference]: Start difference. First operand 503 states and 667 transitions. Second operand 3 states. [2019-10-13 21:17:21,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:21,922 INFO L93 Difference]: Finished difference Result 982 states and 1332 transitions. [2019-10-13 21:17:21,922 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:17:21,923 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 200 [2019-10-13 21:17:21,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:21,933 INFO L225 Difference]: With dead ends: 982 [2019-10-13 21:17:21,933 INFO L226 Difference]: Without dead ends: 544 [2019-10-13 21:17:21,936 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 21:17:21,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2019-10-13 21:17:21,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 543. [2019-10-13 21:17:21,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 543 states. [2019-10-13 21:17:22,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 736 transitions. [2019-10-13 21:17:22,005 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 736 transitions. Word has length 200 [2019-10-13 21:17:22,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:22,006 INFO L462 AbstractCegarLoop]: Abstraction has 543 states and 736 transitions. [2019-10-13 21:17:22,006 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:17:22,006 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 736 transitions. [2019-10-13 21:17:22,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2019-10-13 21:17:22,019 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:22,020 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:22,020 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:22,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:22,021 INFO L82 PathProgramCache]: Analyzing trace with hash 976247459, now seen corresponding path program 1 times [2019-10-13 21:17:22,021 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:22,021 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482447837] [2019-10-13 21:17:22,022 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:22,022 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:22,023 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:22,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:22,326 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-13 21:17:22,326 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482447837] [2019-10-13 21:17:22,326 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:22,327 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:17:22,327 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167387801] [2019-10-13 21:17:22,328 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:17:22,328 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:22,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:17:22,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:22,329 INFO L87 Difference]: Start difference. First operand 543 states and 736 transitions. Second operand 3 states. [2019-10-13 21:17:22,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:22,388 INFO L93 Difference]: Finished difference Result 1099 states and 1534 transitions. [2019-10-13 21:17:22,389 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:17:22,389 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 201 [2019-10-13 21:17:22,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:22,398 INFO L225 Difference]: With dead ends: 1099 [2019-10-13 21:17:22,399 INFO L226 Difference]: Without dead ends: 621 [2019-10-13 21:17:22,402 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 21:17:22,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states. [2019-10-13 21:17:22,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 620. [2019-10-13 21:17:22,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 620 states. [2019-10-13 21:17:22,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 620 states to 620 states and 868 transitions. [2019-10-13 21:17:22,443 INFO L78 Accepts]: Start accepts. Automaton has 620 states and 868 transitions. Word has length 201 [2019-10-13 21:17:22,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:22,444 INFO L462 AbstractCegarLoop]: Abstraction has 620 states and 868 transitions. [2019-10-13 21:17:22,444 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:17:22,444 INFO L276 IsEmpty]: Start isEmpty. Operand 620 states and 868 transitions. [2019-10-13 21:17:22,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2019-10-13 21:17:22,451 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:22,452 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:22,452 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:22,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:22,453 INFO L82 PathProgramCache]: Analyzing trace with hash -1623926726, now seen corresponding path program 1 times [2019-10-13 21:17:22,453 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:22,454 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886483043] [2019-10-13 21:17:22,454 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:22,454 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:22,455 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:22,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:22,652 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-13 21:17:22,653 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886483043] [2019-10-13 21:17:22,653 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:22,653 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:17:22,654 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052193543] [2019-10-13 21:17:22,654 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:17:22,654 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:22,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:17:22,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:22,655 INFO L87 Difference]: Start difference. First operand 620 states and 868 transitions. Second operand 3 states. [2019-10-13 21:17:22,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:22,697 INFO L93 Difference]: Finished difference Result 1324 states and 1920 transitions. [2019-10-13 21:17:22,698 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:17:22,698 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 202 [2019-10-13 21:17:22,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:22,705 INFO L225 Difference]: With dead ends: 1324 [2019-10-13 21:17:22,705 INFO L226 Difference]: Without dead ends: 769 [2019-10-13 21:17:22,707 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 21:17:22,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 769 states. [2019-10-13 21:17:22,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 769 to 768. [2019-10-13 21:17:22,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 768 states. [2019-10-13 21:17:22,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 768 states to 768 states and 1120 transitions. [2019-10-13 21:17:22,749 INFO L78 Accepts]: Start accepts. Automaton has 768 states and 1120 transitions. Word has length 202 [2019-10-13 21:17:22,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:22,750 INFO L462 AbstractCegarLoop]: Abstraction has 768 states and 1120 transitions. [2019-10-13 21:17:22,750 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:17:22,750 INFO L276 IsEmpty]: Start isEmpty. Operand 768 states and 1120 transitions. [2019-10-13 21:17:22,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2019-10-13 21:17:22,755 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:22,755 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:22,756 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:22,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:22,756 INFO L82 PathProgramCache]: Analyzing trace with hash 1460269859, now seen corresponding path program 1 times [2019-10-13 21:17:22,756 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:22,756 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635307425] [2019-10-13 21:17:22,757 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:22,757 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:22,757 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:22,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:23,014 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-13 21:17:23,015 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635307425] [2019-10-13 21:17:23,015 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:23,016 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:17:23,016 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310167541] [2019-10-13 21:17:23,016 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:17:23,017 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:23,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:17:23,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:23,017 INFO L87 Difference]: Start difference. First operand 768 states and 1120 transitions. Second operand 3 states. [2019-10-13 21:17:23,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:23,070 INFO L93 Difference]: Finished difference Result 1756 states and 2656 transitions. [2019-10-13 21:17:23,070 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:17:23,070 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 203 [2019-10-13 21:17:23,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:23,078 INFO L225 Difference]: With dead ends: 1756 [2019-10-13 21:17:23,078 INFO L226 Difference]: Without dead ends: 1053 [2019-10-13 21:17:23,081 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 21:17:23,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1053 states. [2019-10-13 21:17:23,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1053 to 1052. [2019-10-13 21:17:23,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1052 states. [2019-10-13 21:17:23,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1052 states to 1052 states and 1600 transitions. [2019-10-13 21:17:23,126 INFO L78 Accepts]: Start accepts. Automaton has 1052 states and 1600 transitions. Word has length 203 [2019-10-13 21:17:23,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:23,128 INFO L462 AbstractCegarLoop]: Abstraction has 1052 states and 1600 transitions. [2019-10-13 21:17:23,128 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:17:23,128 INFO L276 IsEmpty]: Start isEmpty. Operand 1052 states and 1600 transitions. [2019-10-13 21:17:23,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2019-10-13 21:17:23,134 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:23,134 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:23,135 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:23,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:23,135 INFO L82 PathProgramCache]: Analyzing trace with hash -1034024059, now seen corresponding path program 1 times [2019-10-13 21:17:23,135 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:23,135 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831725228] [2019-10-13 21:17:23,136 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:23,136 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:23,136 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:23,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:23,439 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:17:23,439 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831725228] [2019-10-13 21:17:23,440 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:23,440 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-13 21:17:23,440 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25668916] [2019-10-13 21:17:23,441 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 21:17:23,441 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:23,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 21:17:23,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2019-10-13 21:17:23,442 INFO L87 Difference]: Start difference. First operand 1052 states and 1600 transitions. Second operand 11 states. [2019-10-13 21:17:29,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:29,144 INFO L93 Difference]: Finished difference Result 3156 states and 4414 transitions. [2019-10-13 21:17:29,144 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2019-10-13 21:17:29,144 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 206 [2019-10-13 21:17:29,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:29,164 INFO L225 Difference]: With dead ends: 3156 [2019-10-13 21:17:29,164 INFO L226 Difference]: Without dead ends: 2577 [2019-10-13 21:17:29,167 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=190, Invalid=802, Unknown=0, NotChecked=0, Total=992 [2019-10-13 21:17:29,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2577 states. [2019-10-13 21:17:29,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2577 to 2562. [2019-10-13 21:17:29,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2562 states. [2019-10-13 21:17:29,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2562 states to 2562 states and 3558 transitions. [2019-10-13 21:17:29,319 INFO L78 Accepts]: Start accepts. Automaton has 2562 states and 3558 transitions. Word has length 206 [2019-10-13 21:17:29,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:29,320 INFO L462 AbstractCegarLoop]: Abstraction has 2562 states and 3558 transitions. [2019-10-13 21:17:29,320 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-13 21:17:29,320 INFO L276 IsEmpty]: Start isEmpty. Operand 2562 states and 3558 transitions. [2019-10-13 21:17:29,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2019-10-13 21:17:29,327 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:29,327 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:29,327 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:29,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:29,328 INFO L82 PathProgramCache]: Analyzing trace with hash -587031347, now seen corresponding path program 1 times [2019-10-13 21:17:29,328 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:29,328 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741666483] [2019-10-13 21:17:29,328 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:29,328 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:29,328 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:29,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:29,657 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:17:29,658 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741666483] [2019-10-13 21:17:29,658 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:29,658 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2019-10-13 21:17:29,658 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360073828] [2019-10-13 21:17:29,659 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-10-13 21:17:29,659 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:29,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-10-13 21:17:29,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2019-10-13 21:17:29,660 INFO L87 Difference]: Start difference. First operand 2562 states and 3558 transitions. Second operand 18 states. [2019-10-13 21:17:30,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:30,152 INFO L93 Difference]: Finished difference Result 4091 states and 5559 transitions. [2019-10-13 21:17:30,153 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-10-13 21:17:30,153 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 207 [2019-10-13 21:17:30,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:30,166 INFO L225 Difference]: With dead ends: 4091 [2019-10-13 21:17:30,166 INFO L226 Difference]: Without dead ends: 2182 [2019-10-13 21:17:30,171 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2019-10-13 21:17:30,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2182 states. [2019-10-13 21:17:30,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2182 to 2142. [2019-10-13 21:17:30,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2142 states. [2019-10-13 21:17:30,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2142 states to 2142 states and 3001 transitions. [2019-10-13 21:17:30,283 INFO L78 Accepts]: Start accepts. Automaton has 2142 states and 3001 transitions. Word has length 207 [2019-10-13 21:17:30,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:30,284 INFO L462 AbstractCegarLoop]: Abstraction has 2142 states and 3001 transitions. [2019-10-13 21:17:30,284 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-10-13 21:17:30,284 INFO L276 IsEmpty]: Start isEmpty. Operand 2142 states and 3001 transitions. [2019-10-13 21:17:30,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2019-10-13 21:17:30,291 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:30,291 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:30,291 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:30,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:30,292 INFO L82 PathProgramCache]: Analyzing trace with hash -978410275, now seen corresponding path program 1 times [2019-10-13 21:17:30,292 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:30,292 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839114767] [2019-10-13 21:17:30,293 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:30,293 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:30,293 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:30,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:30,474 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:17:30,474 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839114767] [2019-10-13 21:17:30,474 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:30,474 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 21:17:30,475 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613767326] [2019-10-13 21:17:30,475 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 21:17:30,476 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:30,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 21:17:30,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 21:17:30,476 INFO L87 Difference]: Start difference. First operand 2142 states and 3001 transitions. Second operand 6 states. [2019-10-13 21:17:31,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:31,046 INFO L93 Difference]: Finished difference Result 5566 states and 7724 transitions. [2019-10-13 21:17:31,046 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 21:17:31,047 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 216 [2019-10-13 21:17:31,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:31,077 INFO L225 Difference]: With dead ends: 5566 [2019-10-13 21:17:31,077 INFO L226 Difference]: Without dead ends: 4275 [2019-10-13 21:17:31,084 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-13 21:17:31,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4275 states. [2019-10-13 21:17:31,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4275 to 4204. [2019-10-13 21:17:31,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4204 states. [2019-10-13 21:17:31,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4204 states to 4204 states and 5979 transitions. [2019-10-13 21:17:31,350 INFO L78 Accepts]: Start accepts. Automaton has 4204 states and 5979 transitions. Word has length 216 [2019-10-13 21:17:31,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:31,350 INFO L462 AbstractCegarLoop]: Abstraction has 4204 states and 5979 transitions. [2019-10-13 21:17:31,351 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 21:17:31,351 INFO L276 IsEmpty]: Start isEmpty. Operand 4204 states and 5979 transitions. [2019-10-13 21:17:31,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2019-10-13 21:17:31,361 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:31,361 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:31,362 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:31,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:31,362 INFO L82 PathProgramCache]: Analyzing trace with hash 422554938, now seen corresponding path program 1 times [2019-10-13 21:17:31,362 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:31,362 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60018862] [2019-10-13 21:17:31,363 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:31,363 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:31,363 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:31,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:31,574 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:17:31,575 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60018862] [2019-10-13 21:17:31,575 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:31,575 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-13 21:17:31,575 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623226158] [2019-10-13 21:17:31,576 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 21:17:31,576 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:31,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 21:17:31,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-10-13 21:17:31,577 INFO L87 Difference]: Start difference. First operand 4204 states and 5979 transitions. Second operand 11 states. [2019-10-13 21:17:31,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:31,964 INFO L93 Difference]: Finished difference Result 6809 states and 9318 transitions. [2019-10-13 21:17:31,965 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-13 21:17:31,965 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 217 [2019-10-13 21:17:31,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:31,992 INFO L225 Difference]: With dead ends: 6809 [2019-10-13 21:17:31,992 INFO L226 Difference]: Without dead ends: 4222 [2019-10-13 21:17:32,007 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2019-10-13 21:17:32,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4222 states. [2019-10-13 21:17:32,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4222 to 4192. [2019-10-13 21:17:32,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4192 states. [2019-10-13 21:17:32,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4192 states to 4192 states and 5953 transitions. [2019-10-13 21:17:32,186 INFO L78 Accepts]: Start accepts. Automaton has 4192 states and 5953 transitions. Word has length 217 [2019-10-13 21:17:32,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:32,187 INFO L462 AbstractCegarLoop]: Abstraction has 4192 states and 5953 transitions. [2019-10-13 21:17:32,187 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-13 21:17:32,187 INFO L276 IsEmpty]: Start isEmpty. Operand 4192 states and 5953 transitions. [2019-10-13 21:17:32,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2019-10-13 21:17:32,197 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:32,198 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:32,198 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:32,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:32,199 INFO L82 PathProgramCache]: Analyzing trace with hash 1009331057, now seen corresponding path program 1 times [2019-10-13 21:17:32,199 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:32,199 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377337661] [2019-10-13 21:17:32,199 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:32,199 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:32,199 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:32,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:32,411 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:17:32,412 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377337661] [2019-10-13 21:17:32,412 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:32,412 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 21:17:32,412 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279819190] [2019-10-13 21:17:32,413 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 21:17:32,413 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:32,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 21:17:32,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 21:17:32,414 INFO L87 Difference]: Start difference. First operand 4192 states and 5953 transitions. Second operand 5 states. [2019-10-13 21:17:33,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:33,630 INFO L93 Difference]: Finished difference Result 12987 states and 18128 transitions. [2019-10-13 21:17:33,631 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 21:17:33,631 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 217 [2019-10-13 21:17:33,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:33,702 INFO L225 Difference]: With dead ends: 12987 [2019-10-13 21:17:33,703 INFO L226 Difference]: Without dead ends: 9560 [2019-10-13 21:17:33,718 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-13 21:17:33,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9560 states. [2019-10-13 21:17:34,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9560 to 9280. [2019-10-13 21:17:34,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9280 states. [2019-10-13 21:17:34,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9280 states to 9280 states and 13295 transitions. [2019-10-13 21:17:34,264 INFO L78 Accepts]: Start accepts. Automaton has 9280 states and 13295 transitions. Word has length 217 [2019-10-13 21:17:34,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:34,265 INFO L462 AbstractCegarLoop]: Abstraction has 9280 states and 13295 transitions. [2019-10-13 21:17:34,265 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 21:17:34,266 INFO L276 IsEmpty]: Start isEmpty. Operand 9280 states and 13295 transitions. [2019-10-13 21:17:34,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2019-10-13 21:17:34,295 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:34,295 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:34,296 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:34,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:34,296 INFO L82 PathProgramCache]: Analyzing trace with hash 1393309593, now seen corresponding path program 1 times [2019-10-13 21:17:34,296 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:34,297 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280751331] [2019-10-13 21:17:34,297 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:34,297 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:34,297 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:34,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:34,640 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-10-13 21:17:34,640 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280751331] [2019-10-13 21:17:34,640 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:34,640 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 21:17:34,641 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298867031] [2019-10-13 21:17:34,641 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 21:17:34,642 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:34,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 21:17:34,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-13 21:17:34,642 INFO L87 Difference]: Start difference. First operand 9280 states and 13295 transitions. Second operand 8 states. [2019-10-13 21:17:38,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:38,887 INFO L93 Difference]: Finished difference Result 28206 states and 42883 transitions. [2019-10-13 21:17:38,888 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-13 21:17:38,888 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 254 [2019-10-13 21:17:38,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:38,990 INFO L225 Difference]: With dead ends: 28206 [2019-10-13 21:17:38,991 INFO L226 Difference]: Without dead ends: 18991 [2019-10-13 21:17:39,034 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2019-10-13 21:17:39,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18991 states. [2019-10-13 21:17:39,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18991 to 12568. [2019-10-13 21:17:39,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12568 states. [2019-10-13 21:17:39,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12568 states to 12568 states and 20215 transitions. [2019-10-13 21:17:39,896 INFO L78 Accepts]: Start accepts. Automaton has 12568 states and 20215 transitions. Word has length 254 [2019-10-13 21:17:39,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:39,897 INFO L462 AbstractCegarLoop]: Abstraction has 12568 states and 20215 transitions. [2019-10-13 21:17:39,897 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 21:17:39,897 INFO L276 IsEmpty]: Start isEmpty. Operand 12568 states and 20215 transitions. [2019-10-13 21:17:39,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2019-10-13 21:17:39,949 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:39,950 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:39,950 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:39,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:39,950 INFO L82 PathProgramCache]: Analyzing trace with hash 2145881105, now seen corresponding path program 1 times [2019-10-13 21:17:39,951 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:39,951 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636935628] [2019-10-13 21:17:39,951 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:39,951 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:39,951 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:40,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:40,154 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-13 21:17:40,155 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636935628] [2019-10-13 21:17:40,155 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:40,155 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 21:17:40,155 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523188703] [2019-10-13 21:17:40,156 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 21:17:40,157 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:40,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 21:17:40,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-13 21:17:40,157 INFO L87 Difference]: Start difference. First operand 12568 states and 20215 transitions. Second operand 8 states. [2019-10-13 21:17:45,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:45,064 INFO L93 Difference]: Finished difference Result 38606 states and 66899 transitions. [2019-10-13 21:17:45,064 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-13 21:17:45,064 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 240 [2019-10-13 21:17:45,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:45,207 INFO L225 Difference]: With dead ends: 38606 [2019-10-13 21:17:45,207 INFO L226 Difference]: Without dead ends: 26103 [2019-10-13 21:17:45,268 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2019-10-13 21:17:45,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26103 states. [2019-10-13 21:17:46,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26103 to 19264. [2019-10-13 21:17:46,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19264 states. [2019-10-13 21:17:46,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19264 states to 19264 states and 35399 transitions. [2019-10-13 21:17:46,669 INFO L78 Accepts]: Start accepts. Automaton has 19264 states and 35399 transitions. Word has length 240 [2019-10-13 21:17:46,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:46,669 INFO L462 AbstractCegarLoop]: Abstraction has 19264 states and 35399 transitions. [2019-10-13 21:17:46,670 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 21:17:46,670 INFO L276 IsEmpty]: Start isEmpty. Operand 19264 states and 35399 transitions. [2019-10-13 21:17:46,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2019-10-13 21:17:46,793 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:46,794 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:46,794 INFO L410 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:46,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:46,795 INFO L82 PathProgramCache]: Analyzing trace with hash -1902344509, now seen corresponding path program 1 times [2019-10-13 21:17:46,795 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:46,795 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080582434] [2019-10-13 21:17:46,795 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:46,795 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:46,795 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:46,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:47,004 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-13 21:17:47,005 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080582434] [2019-10-13 21:17:47,005 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:47,005 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 21:17:47,005 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825724572] [2019-10-13 21:17:47,006 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 21:17:47,007 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:47,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 21:17:47,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-13 21:17:47,008 INFO L87 Difference]: Start difference. First operand 19264 states and 35399 transitions. Second operand 8 states.