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_product20.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 21:17:04,924 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:17:04,926 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:17:04,939 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:17:04,939 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:17:04,941 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:17:04,942 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:17:04,944 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:17:04,946 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:17:04,947 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:17:04,948 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:17:04,949 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:17:04,949 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:17:04,950 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:17:04,951 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:17:04,952 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:17:04,953 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:17:04,954 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:17:04,956 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:17:04,958 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:17:04,959 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:17:04,961 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:17:04,962 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:17:04,963 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:17:04,965 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 21:17:04,965 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 21:17:04,965 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 21:17:04,966 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 21:17:04,967 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 21:17:04,967 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 21:17:04,968 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 21:17:04,969 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 21:17:04,969 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 21:17:04,970 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 21:17:04,971 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 21:17:04,972 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 21:17:04,972 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 21:17:04,972 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 21:17:04,973 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:17:04,974 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:17:04,974 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:17:04,977 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 21:17:04,998 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:17:04,999 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:17:05,003 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:17:05,003 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:17:05,003 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:17:05,003 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:17:05,004 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:17:05,004 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:17:05,004 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:17:05,004 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:17:05,005 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:17:05,006 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:17:05,006 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:17:05,006 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:17:05,006 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:17:05,007 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:17:05,007 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:17:05,007 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:17:05,007 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:17:05,007 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:17:05,008 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:17:05,008 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:17:05,008 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:17:05,009 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:17:05,009 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:17:05,009 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:17:05,009 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:17:05,009 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:17:05,010 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 21:17:05,282 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:17:05,295 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:17:05,298 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:17:05,300 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:17:05,300 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:17:05,301 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec6_product20.cil.c [2019-10-13 21:17:05,379 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/910360309/827dcbe98bd044549141215cdb997508/FLAG48de6116a [2019-10-13 21:17:06,022 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:17:06,024 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec6_product20.cil.c [2019-10-13 21:17:06,054 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/910360309/827dcbe98bd044549141215cdb997508/FLAG48de6116a [2019-10-13 21:17:06,218 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/910360309/827dcbe98bd044549141215cdb997508 [2019-10-13 21:17:06,228 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:17:06,232 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:17:06,235 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:17:06,235 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:17:06,238 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:17:06,240 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:17:06" (1/1) ... [2019-10-13 21:17:06,243 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10977f2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:06, skipping insertion in model container [2019-10-13 21:17:06,243 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:17:06" (1/1) ... [2019-10-13 21:17:06,253 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:17:06,338 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:17:07,100 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:17:07,136 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:17:07,308 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:17:07,419 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:17:07,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:07 WrapperNode [2019-10-13 21:17:07,420 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:17:07,421 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:17:07,421 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:17:07,421 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:17:07,438 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:07" (1/1) ... [2019-10-13 21:17:07,438 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:07" (1/1) ... [2019-10-13 21:17:07,469 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:07" (1/1) ... [2019-10-13 21:17:07,469 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:07" (1/1) ... [2019-10-13 21:17:07,558 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:07" (1/1) ... [2019-10-13 21:17:07,592 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:07" (1/1) ... [2019-10-13 21:17:07,617 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:07" (1/1) ... [2019-10-13 21:17:07,637 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:17:07,638 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:17:07,641 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:17:07,641 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:17:07,642 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:07" (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 21:17:07,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:17:07,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:17:07,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 21:17:07,722 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 21:17:07,722 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 21:17:07,723 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 21:17:07,723 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 21:17:07,724 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 21:17:07,724 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 21:17:07,725 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 21:17:07,725 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 21:17:07,725 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 21:17:07,725 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 21:17:07,726 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 21:17:07,727 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 21:17:07,727 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 21:17:07,730 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 21:17:07,731 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 21:17:07,731 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 21:17:07,731 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 21:17:07,731 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 21:17:07,732 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 21:17:07,732 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 21:17:07,732 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 21:17:07,733 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 21:17:07,733 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 21:17:07,733 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 21:17:07,733 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 21:17:07,734 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 21:17:07,734 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 21:17:07,734 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 21:17:07,734 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 21:17:07,735 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 21:17:07,735 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 21:17:07,735 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 21:17:07,736 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 21:17:07,736 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 21:17:07,736 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 21:17:07,736 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 21:17:07,736 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 21:17:07,737 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 21:17:07,737 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 21:17:07,737 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 21:17:07,737 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 21:17:07,738 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 21:17:07,738 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 21:17:07,738 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 21:17:07,738 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 21:17:07,739 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 21:17:07,739 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 21:17:07,739 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 21:17:07,739 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 21:17:07,740 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 21:17:07,740 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 21:17:07,740 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 21:17:07,740 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 21:17:07,740 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 21:17:07,741 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 21:17:07,741 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 21:17:07,741 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 21:17:07,742 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 21:17:07,742 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 21:17:07,742 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 21:17:07,743 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 21:17:07,743 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-13 21:17:07,743 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-13 21:17:07,743 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 21:17:07,744 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 21:17:07,744 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 21:17:07,744 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 21:17:07,744 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 21:17:07,744 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 21:17:07,744 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 21:17:07,746 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 21:17:07,746 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 21:17:07,746 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:17:07,746 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 21:17:07,747 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 21:17:07,747 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 21:17:07,748 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 21:17:07,748 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 21:17:07,748 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 21:17:07,748 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 21:17:07,749 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 21:17:07,749 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 21:17:07,750 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-13 21:17:07,750 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-13 21:17:07,752 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 21:17:07,752 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 21:17:07,752 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 21:17:07,752 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-13 21:17:07,753 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 21:17:07,753 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 21:17:07,753 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-13 21:17:07,753 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AddressBook [2019-10-13 21:17:07,753 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 21:17:07,753 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 21:17:07,754 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 21:17:07,754 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 21:17:07,754 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 21:17:07,754 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 21:17:07,755 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 21:17:07,755 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 21:17:07,755 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 21:17:07,755 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-13 21:17:07,755 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-13 21:17:07,756 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 21:17:07,756 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 21:17:07,756 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 21:17:07,756 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 21:17:07,756 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 21:17:07,756 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 21:17:07,756 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 21:17:07,757 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:17:07,757 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 21:17:07,757 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 21:17:07,757 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 21:17:07,758 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 21:17:07,758 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 21:17:07,758 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 21:17:07,758 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-13 21:17:07,759 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 21:17:07,759 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 21:17:07,759 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 21:17:07,760 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 21:17:07,761 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-13 21:17:07,761 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 21:17:07,761 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 21:17:07,761 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 21:17:07,761 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 21:17:07,761 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 21:17:07,762 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 21:17:07,762 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 21:17:07,762 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 21:17:07,762 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 21:17:07,763 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 21:17:07,763 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 21:17:07,771 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 21:17:07,771 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 21:17:07,771 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 21:17:07,772 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 21:17:07,773 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 21:17:07,773 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 21:17:07,774 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 21:17:07,781 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 21:17:07,782 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 21:17:07,782 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 21:17:07,782 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 21:17:07,782 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 21:17:07,782 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 21:17:07,782 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 21:17:07,783 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 21:17:07,783 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 21:17:07,783 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 21:17:07,783 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 21:17:07,783 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 21:17:07,783 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 21:17:07,783 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 21:17:07,784 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 21:17:07,784 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 21:17:07,784 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 21:17:07,784 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 21:17:07,787 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 21:17:07,788 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 21:17:07,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 21:17:07,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 21:17:07,788 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 21:17:07,788 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 21:17:07,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 21:17:07,789 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 21:17:07,789 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 21:17:07,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 21:17:07,789 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 21:17:07,790 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 21:17:07,790 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 21:17:07,790 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 21:17:07,791 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 21:17:07,791 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 21:17:07,791 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 21:17:07,791 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 21:17:07,792 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 21:17:07,792 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 21:17:07,792 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 21:17:07,792 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 21:17:07,792 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 21:17:07,793 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 21:17:07,793 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 21:17:07,793 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 21:17:07,793 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 21:17:07,793 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 21:17:07,794 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 21:17:07,794 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 21:17:07,794 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 21:17:07,794 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 21:17:07,794 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 21:17:07,795 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 21:17:07,795 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 21:17:07,795 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 21:17:07,795 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 21:17:07,795 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 21:17:07,796 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 21:17:07,796 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-13 21:17:07,796 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-13 21:17:07,796 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 21:17:07,796 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 21:17:07,796 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 21:17:07,797 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 21:17:07,797 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 21:17:07,797 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 21:17:07,797 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 21:17:07,797 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 21:17:07,798 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 21:17:07,798 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 21:17:07,798 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 21:17:07,798 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:17:07,798 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 21:17:07,798 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 21:17:07,798 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 21:17:07,799 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 21:17:07,799 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 21:17:07,799 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 21:17:07,799 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 21:17:07,799 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 21:17:07,799 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 21:17:07,799 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 21:17:07,800 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 21:17:07,800 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-13 21:17:07,800 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-13 21:17:07,800 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 21:17:07,800 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-13 21:17:07,800 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-13 21:17:07,800 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AddressBook [2019-10-13 21:17:07,801 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 21:17:07,801 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 21:17:07,801 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 21:17:07,801 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 21:17:07,801 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 21:17:07,801 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 21:17:07,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:17:07,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 21:17:07,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:17:10,277 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:17:10,277 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 21:17:10,279 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:17:10 BoogieIcfgContainer [2019-10-13 21:17:10,280 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:17:10,281 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:17:10,282 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:17:10,286 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:17:10,286 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:17:06" (1/3) ... [2019-10-13 21:17:10,287 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f89a0ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:17:10, skipping insertion in model container [2019-10-13 21:17:10,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:07" (2/3) ... [2019-10-13 21:17:10,288 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f89a0ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:17:10, skipping insertion in model container [2019-10-13 21:17:10,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:17:10" (3/3) ... [2019-10-13 21:17:10,290 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec6_product20.cil.c [2019-10-13 21:17:10,301 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:17:10,312 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:17:10,324 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:17:10,368 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:17:10,369 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:17:10,369 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:17:10,369 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:17:10,369 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:17:10,369 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:17:10,371 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:17:10,377 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:17:10,429 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states. [2019-10-13 21:17:10,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2019-10-13 21:17:10,475 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:10,477 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-13 21:17:10,483 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:10,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:10,491 INFO L82 PathProgramCache]: Analyzing trace with hash 493567878, now seen corresponding path program 1 times [2019-10-13 21:17:10,506 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:10,507 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761171850] [2019-10-13 21:17:10,507 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:10,507 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:10,508 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:10,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:11,238 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-13 21:17:11,239 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761171850] [2019-10-13 21:17:11,240 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:11,241 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 21:17:11,241 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182935818] [2019-10-13 21:17:11,249 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 21:17:11,251 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:11,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 21:17:11,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:17:11,270 INFO L87 Difference]: Start difference. First operand 567 states. Second operand 2 states. [2019-10-13 21:17:11,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:11,363 INFO L93 Difference]: Finished difference Result 772 states and 1057 transitions. [2019-10-13 21:17:11,363 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 21:17:11,364 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 185 [2019-10-13 21:17:11,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:11,411 INFO L225 Difference]: With dead ends: 772 [2019-10-13 21:17:11,411 INFO L226 Difference]: Without dead ends: 514 [2019-10-13 21:17:11,423 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 21:17:11,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2019-10-13 21:17:11,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 514. [2019-10-13 21:17:11,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 514 states. [2019-10-13 21:17:11,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 707 transitions. [2019-10-13 21:17:11,547 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 707 transitions. Word has length 185 [2019-10-13 21:17:11,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:11,550 INFO L462 AbstractCegarLoop]: Abstraction has 514 states and 707 transitions. [2019-10-13 21:17:11,550 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 21:17:11,550 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 707 transitions. [2019-10-13 21:17:11,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2019-10-13 21:17:11,556 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:11,556 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-13 21:17:11,557 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:11,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:11,557 INFO L82 PathProgramCache]: Analyzing trace with hash 532061428, now seen corresponding path program 1 times [2019-10-13 21:17:11,558 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:11,558 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215135734] [2019-10-13 21:17:11,558 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:11,558 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:11,558 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:11,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:11,857 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-13 21:17:11,858 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215135734] [2019-10-13 21:17:11,858 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:11,859 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:17:11,859 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452086132] [2019-10-13 21:17:11,863 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:17:11,867 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:11,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:17:11,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:11,869 INFO L87 Difference]: Start difference. First operand 514 states and 707 transitions. Second operand 3 states. [2019-10-13 21:17:11,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:11,950 INFO L93 Difference]: Finished difference Result 755 states and 1022 transitions. [2019-10-13 21:17:11,951 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:17:11,951 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 186 [2019-10-13 21:17:11,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:11,959 INFO L225 Difference]: With dead ends: 755 [2019-10-13 21:17:11,960 INFO L226 Difference]: Without dead ends: 517 [2019-10-13 21:17:11,963 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 21:17:11,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2019-10-13 21:17:12,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 516. [2019-10-13 21:17:12,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 516 states. [2019-10-13 21:17:12,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 709 transitions. [2019-10-13 21:17:12,008 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 709 transitions. Word has length 186 [2019-10-13 21:17:12,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:12,010 INFO L462 AbstractCegarLoop]: Abstraction has 516 states and 709 transitions. [2019-10-13 21:17:12,010 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:17:12,010 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 709 transitions. [2019-10-13 21:17:12,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2019-10-13 21:17:12,016 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:12,016 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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 21:17:12,017 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:12,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:12,017 INFO L82 PathProgramCache]: Analyzing trace with hash -347325980, now seen corresponding path program 1 times [2019-10-13 21:17:12,017 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:12,017 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403816664] [2019-10-13 21:17:12,018 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:12,018 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:12,018 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:12,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:12,279 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-13 21:17:12,280 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403816664] [2019-10-13 21:17:12,280 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:12,280 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:17:12,280 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269924550] [2019-10-13 21:17:12,282 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:17:12,284 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:12,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:17:12,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:12,285 INFO L87 Difference]: Start difference. First operand 516 states and 709 transitions. Second operand 3 states. [2019-10-13 21:17:12,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:12,337 INFO L93 Difference]: Finished difference Result 1010 states and 1419 transitions. [2019-10-13 21:17:12,338 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:17:12,338 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 196 [2019-10-13 21:17:12,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:12,343 INFO L225 Difference]: With dead ends: 1010 [2019-10-13 21:17:12,344 INFO L226 Difference]: Without dead ends: 559 [2019-10-13 21:17:12,346 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 21:17:12,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2019-10-13 21:17:12,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 558. [2019-10-13 21:17:12,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 558 states. [2019-10-13 21:17:12,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 781 transitions. [2019-10-13 21:17:12,397 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 781 transitions. Word has length 196 [2019-10-13 21:17:12,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:12,400 INFO L462 AbstractCegarLoop]: Abstraction has 558 states and 781 transitions. [2019-10-13 21:17:12,400 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:17:12,401 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 781 transitions. [2019-10-13 21:17:12,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2019-10-13 21:17:12,410 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:12,410 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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 21:17:12,411 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:12,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:12,411 INFO L82 PathProgramCache]: Analyzing trace with hash -326965868, now seen corresponding path program 1 times [2019-10-13 21:17:12,412 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:12,412 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65402652] [2019-10-13 21:17:12,412 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:12,412 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:12,413 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:12,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:12,764 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-13 21:17:12,764 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65402652] [2019-10-13 21:17:12,764 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:12,765 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:17:12,766 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185375239] [2019-10-13 21:17:12,767 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:17:12,768 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:12,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:17:12,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:12,769 INFO L87 Difference]: Start difference. First operand 558 states and 781 transitions. Second operand 3 states. [2019-10-13 21:17:12,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:12,824 INFO L93 Difference]: Finished difference Result 1133 states and 1630 transitions. [2019-10-13 21:17:12,825 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:17:12,825 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 197 [2019-10-13 21:17:12,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:12,832 INFO L225 Difference]: With dead ends: 1133 [2019-10-13 21:17:12,832 INFO L226 Difference]: Without dead ends: 640 [2019-10-13 21:17:12,835 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 21:17:12,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 640 states. [2019-10-13 21:17:12,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 640 to 639. [2019-10-13 21:17:12,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 639 states. [2019-10-13 21:17:12,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 639 states to 639 states and 919 transitions. [2019-10-13 21:17:12,870 INFO L78 Accepts]: Start accepts. Automaton has 639 states and 919 transitions. Word has length 197 [2019-10-13 21:17:12,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:12,871 INFO L462 AbstractCegarLoop]: Abstraction has 639 states and 919 transitions. [2019-10-13 21:17:12,871 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:17:12,871 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 919 transitions. [2019-10-13 21:17:12,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2019-10-13 21:17:12,876 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:12,876 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-13 21:17:12,877 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:12,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:12,877 INFO L82 PathProgramCache]: Analyzing trace with hash 175812164, now seen corresponding path program 1 times [2019-10-13 21:17:12,877 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:12,878 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433390387] [2019-10-13 21:17:12,878 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:12,878 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:12,878 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:12,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:13,070 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-13 21:17:13,071 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433390387] [2019-10-13 21:17:13,072 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:13,072 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:17:13,072 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649279988] [2019-10-13 21:17:13,073 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:17:13,073 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:13,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:17:13,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:13,074 INFO L87 Difference]: Start difference. First operand 639 states and 919 transitions. Second operand 3 states. [2019-10-13 21:17:13,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:13,124 INFO L93 Difference]: Finished difference Result 1370 states and 2034 transitions. [2019-10-13 21:17:13,124 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:17:13,124 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 198 [2019-10-13 21:17:13,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:13,131 INFO L225 Difference]: With dead ends: 1370 [2019-10-13 21:17:13,132 INFO L226 Difference]: Without dead ends: 796 [2019-10-13 21:17:13,134 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 21:17:13,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 796 states. [2019-10-13 21:17:13,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 796 to 795. [2019-10-13 21:17:13,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 795 states. [2019-10-13 21:17:13,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 795 states to 795 states and 1183 transitions. [2019-10-13 21:17:13,181 INFO L78 Accepts]: Start accepts. Automaton has 795 states and 1183 transitions. Word has length 198 [2019-10-13 21:17:13,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:13,181 INFO L462 AbstractCegarLoop]: Abstraction has 795 states and 1183 transitions. [2019-10-13 21:17:13,181 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:17:13,181 INFO L276 IsEmpty]: Start isEmpty. Operand 795 states and 1183 transitions. [2019-10-13 21:17:13,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2019-10-13 21:17:13,187 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:13,188 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-13 21:17:13,188 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:13,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:13,189 INFO L82 PathProgramCache]: Analyzing trace with hash 517583156, now seen corresponding path program 1 times [2019-10-13 21:17:13,189 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:13,189 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58631063] [2019-10-13 21:17:13,190 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:13,190 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:13,190 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:13,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:13,439 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-13 21:17:13,439 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58631063] [2019-10-13 21:17:13,439 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:13,440 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:17:13,440 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939214665] [2019-10-13 21:17:13,440 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:17:13,441 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:13,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:17:13,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:13,441 INFO L87 Difference]: Start difference. First operand 795 states and 1183 transitions. Second operand 3 states. [2019-10-13 21:17:13,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:13,510 INFO L93 Difference]: Finished difference Result 1826 states and 2806 transitions. [2019-10-13 21:17:13,510 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:17:13,511 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 199 [2019-10-13 21:17:13,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:13,519 INFO L225 Difference]: With dead ends: 1826 [2019-10-13 21:17:13,519 INFO L226 Difference]: Without dead ends: 1096 [2019-10-13 21:17:13,523 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 21:17:13,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1096 states. [2019-10-13 21:17:13,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1096 to 1095. [2019-10-13 21:17:13,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1095 states. [2019-10-13 21:17:13,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1095 states to 1095 states and 1687 transitions. [2019-10-13 21:17:13,602 INFO L78 Accepts]: Start accepts. Automaton has 1095 states and 1687 transitions. Word has length 199 [2019-10-13 21:17:13,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:13,604 INFO L462 AbstractCegarLoop]: Abstraction has 1095 states and 1687 transitions. [2019-10-13 21:17:13,604 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:17:13,604 INFO L276 IsEmpty]: Start isEmpty. Operand 1095 states and 1687 transitions. [2019-10-13 21:17:13,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2019-10-13 21:17:13,612 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:13,613 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-13 21:17:13,613 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:13,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:13,614 INFO L82 PathProgramCache]: Analyzing trace with hash 2061438023, now seen corresponding path program 1 times [2019-10-13 21:17:13,614 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:13,614 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438161025] [2019-10-13 21:17:13,614 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:13,615 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:13,615 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:13,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:13,983 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-13 21:17:13,984 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438161025] [2019-10-13 21:17:13,984 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:13,984 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-13 21:17:13,984 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395416377] [2019-10-13 21:17:13,985 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 21:17:13,985 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:13,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 21:17:13,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2019-10-13 21:17:13,986 INFO L87 Difference]: Start difference. First operand 1095 states and 1687 transitions. Second operand 11 states. [2019-10-13 21:17:19,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:19,082 INFO L93 Difference]: Finished difference Result 3067 states and 4548 transitions. [2019-10-13 21:17:19,082 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2019-10-13 21:17:19,082 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 202 [2019-10-13 21:17:19,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:19,102 INFO L225 Difference]: With dead ends: 3067 [2019-10-13 21:17:19,102 INFO L226 Difference]: Without dead ends: 2842 [2019-10-13 21:17:19,105 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 281 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=209, Invalid=913, Unknown=0, NotChecked=0, Total=1122 [2019-10-13 21:17:19,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2842 states. [2019-10-13 21:17:19,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2842 to 2821. [2019-10-13 21:17:19,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2821 states. [2019-10-13 21:17:19,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2821 states to 2821 states and 4142 transitions. [2019-10-13 21:17:19,243 INFO L78 Accepts]: Start accepts. Automaton has 2821 states and 4142 transitions. Word has length 202 [2019-10-13 21:17:19,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:19,244 INFO L462 AbstractCegarLoop]: Abstraction has 2821 states and 4142 transitions. [2019-10-13 21:17:19,244 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-13 21:17:19,244 INFO L276 IsEmpty]: Start isEmpty. Operand 2821 states and 4142 transitions. [2019-10-13 21:17:19,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2019-10-13 21:17:19,254 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:19,254 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-13 21:17:19,255 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:19,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:19,255 INFO L82 PathProgramCache]: Analyzing trace with hash 836940569, now seen corresponding path program 1 times [2019-10-13 21:17:19,255 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:19,256 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692406852] [2019-10-13 21:17:19,256 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:19,256 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:19,256 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:19,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:19,612 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-13 21:17:19,613 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692406852] [2019-10-13 21:17:19,613 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:19,613 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2019-10-13 21:17:19,614 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442804111] [2019-10-13 21:17:19,615 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-10-13 21:17:19,615 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:19,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-10-13 21:17:19,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2019-10-13 21:17:19,616 INFO L87 Difference]: Start difference. First operand 2821 states and 4142 transitions. Second operand 18 states. [2019-10-13 21:17:20,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:20,177 INFO L93 Difference]: Finished difference Result 4807 states and 7068 transitions. [2019-10-13 21:17:20,177 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-10-13 21:17:20,178 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 203 [2019-10-13 21:17:20,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:20,198 INFO L225 Difference]: With dead ends: 4807 [2019-10-13 21:17:20,198 INFO L226 Difference]: Without dead ends: 2838 [2019-10-13 21:17:20,206 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 21:17:20,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2838 states. [2019-10-13 21:17:20,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2838 to 2836. [2019-10-13 21:17:20,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2836 states. [2019-10-13 21:17:20,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2836 states to 2836 states and 4143 transitions. [2019-10-13 21:17:20,348 INFO L78 Accepts]: Start accepts. Automaton has 2836 states and 4143 transitions. Word has length 203 [2019-10-13 21:17:20,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:20,349 INFO L462 AbstractCegarLoop]: Abstraction has 2836 states and 4143 transitions. [2019-10-13 21:17:20,349 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-10-13 21:17:20,349 INFO L276 IsEmpty]: Start isEmpty. Operand 2836 states and 4143 transitions. [2019-10-13 21:17:20,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2019-10-13 21:17:20,357 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:20,358 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-13 21:17:20,358 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:20,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:20,358 INFO L82 PathProgramCache]: Analyzing trace with hash -17476821, now seen corresponding path program 1 times [2019-10-13 21:17:20,359 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:20,359 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859725493] [2019-10-13 21:17:20,359 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:20,359 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:20,359 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:20,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:20,546 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-13 21:17:20,546 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859725493] [2019-10-13 21:17:20,547 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:20,547 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 21:17:20,548 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010107247] [2019-10-13 21:17:20,550 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 21:17:20,550 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:20,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 21:17:20,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 21:17:20,551 INFO L87 Difference]: Start difference. First operand 2836 states and 4143 transitions. Second operand 6 states. [2019-10-13 21:17:21,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:21,274 INFO L93 Difference]: Finished difference Result 7697 states and 11356 transitions. [2019-10-13 21:17:21,274 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 21:17:21,275 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 212 [2019-10-13 21:17:21,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:21,318 INFO L225 Difference]: With dead ends: 7697 [2019-10-13 21:17:21,318 INFO L226 Difference]: Without dead ends: 5759 [2019-10-13 21:17:21,330 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 21:17:21,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5759 states. [2019-10-13 21:17:21,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5759 to 5688. [2019-10-13 21:17:21,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5688 states. [2019-10-13 21:17:21,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5688 states to 5688 states and 8455 transitions. [2019-10-13 21:17:21,760 INFO L78 Accepts]: Start accepts. Automaton has 5688 states and 8455 transitions. Word has length 212 [2019-10-13 21:17:21,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:21,761 INFO L462 AbstractCegarLoop]: Abstraction has 5688 states and 8455 transitions. [2019-10-13 21:17:21,761 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 21:17:21,761 INFO L276 IsEmpty]: Start isEmpty. Operand 5688 states and 8455 transitions. [2019-10-13 21:17:21,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2019-10-13 21:17:21,780 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:21,780 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-13 21:17:21,780 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:21,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:21,781 INFO L82 PathProgramCache]: Analyzing trace with hash -924380084, now seen corresponding path program 1 times [2019-10-13 21:17:21,781 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:21,781 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135518549] [2019-10-13 21:17:21,782 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:21,782 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:21,782 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:21,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:22,033 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-13 21:17:22,033 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135518549] [2019-10-13 21:17:22,034 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:22,034 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-13 21:17:22,034 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663130309] [2019-10-13 21:17:22,035 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 21:17:22,035 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:22,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 21:17:22,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-10-13 21:17:22,036 INFO L87 Difference]: Start difference. First operand 5688 states and 8455 transitions. Second operand 11 states. [2019-10-13 21:17:22,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:22,715 INFO L93 Difference]: Finished difference Result 9703 states and 14196 transitions. [2019-10-13 21:17:22,715 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-13 21:17:22,716 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 213 [2019-10-13 21:17:22,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:22,759 INFO L225 Difference]: With dead ends: 9703 [2019-10-13 21:17:22,760 INFO L226 Difference]: Without dead ends: 5742 [2019-10-13 21:17:22,777 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 21:17:22,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5742 states. [2019-10-13 21:17:23,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5742 to 5724. [2019-10-13 21:17:23,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5724 states. [2019-10-13 21:17:23,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5724 states to 5724 states and 8491 transitions. [2019-10-13 21:17:23,087 INFO L78 Accepts]: Start accepts. Automaton has 5724 states and 8491 transitions. Word has length 213 [2019-10-13 21:17:23,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:23,088 INFO L462 AbstractCegarLoop]: Abstraction has 5724 states and 8491 transitions. [2019-10-13 21:17:23,088 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-13 21:17:23,088 INFO L276 IsEmpty]: Start isEmpty. Operand 5724 states and 8491 transitions. [2019-10-13 21:17:23,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2019-10-13 21:17:23,108 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:23,108 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-13 21:17:23,109 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:23,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:23,110 INFO L82 PathProgramCache]: Analyzing trace with hash -337603965, now seen corresponding path program 1 times [2019-10-13 21:17:23,110 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:23,110 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592755008] [2019-10-13 21:17:23,111 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:23,111 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:23,111 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:23,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:23,413 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-13 21:17:23,413 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592755008] [2019-10-13 21:17:23,413 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:23,414 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 21:17:23,414 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723449921] [2019-10-13 21:17:23,414 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 21:17:23,415 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:23,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 21:17:23,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 21:17:23,415 INFO L87 Difference]: Start difference. First operand 5724 states and 8491 transitions. Second operand 5 states. [2019-10-13 21:17:24,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:24,986 INFO L93 Difference]: Finished difference Result 19279 states and 28365 transitions. [2019-10-13 21:17:24,987 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 21:17:24,987 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 213 [2019-10-13 21:17:24,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:25,126 INFO L225 Difference]: With dead ends: 19279 [2019-10-13 21:17:25,127 INFO L226 Difference]: Without dead ends: 15284 [2019-10-13 21:17:25,158 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 21:17:25,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15284 states. [2019-10-13 21:17:25,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15284 to 15172. [2019-10-13 21:17:25,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15172 states. [2019-10-13 21:17:25,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15172 states to 15172 states and 22439 transitions. [2019-10-13 21:17:25,956 INFO L78 Accepts]: Start accepts. Automaton has 15172 states and 22439 transitions. Word has length 213 [2019-10-13 21:17:25,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:25,958 INFO L462 AbstractCegarLoop]: Abstraction has 15172 states and 22439 transitions. [2019-10-13 21:17:25,958 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 21:17:25,958 INFO L276 IsEmpty]: Start isEmpty. Operand 15172 states and 22439 transitions. [2019-10-13 21:17:25,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2019-10-13 21:17:25,986 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:25,986 INFO L380 BasicCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:25,987 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:25,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:25,987 INFO L82 PathProgramCache]: Analyzing trace with hash -2101577119, now seen corresponding path program 1 times [2019-10-13 21:17:25,987 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:25,988 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633099966] [2019-10-13 21:17:25,988 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:25,988 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:25,988 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:26,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:26,234 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:17:26,234 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633099966] [2019-10-13 21:17:26,235 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:26,235 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 21:17:26,235 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654325126] [2019-10-13 21:17:26,236 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 21:17:26,237 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:26,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 21:17:26,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-13 21:17:26,238 INFO L87 Difference]: Start difference. First operand 15172 states and 22439 transitions. Second operand 8 states. [2019-10-13 21:17:31,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:31,472 INFO L93 Difference]: Finished difference Result 45882 states and 70315 transitions. [2019-10-13 21:17:31,472 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-13 21:17:31,472 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 250 [2019-10-13 21:17:31,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:31,656 INFO L225 Difference]: With dead ends: 45882 [2019-10-13 21:17:31,657 INFO L226 Difference]: Without dead ends: 30775 [2019-10-13 21:17:31,732 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 21:17:31,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30775 states. [2019-10-13 21:17:33,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30775 to 18756. [2019-10-13 21:17:33,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18756 states. [2019-10-13 21:17:34,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18756 states to 18756 states and 29827 transitions. [2019-10-13 21:17:34,064 INFO L78 Accepts]: Start accepts. Automaton has 18756 states and 29827 transitions. Word has length 250 [2019-10-13 21:17:34,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:34,065 INFO L462 AbstractCegarLoop]: Abstraction has 18756 states and 29827 transitions. [2019-10-13 21:17:34,065 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 21:17:34,065 INFO L276 IsEmpty]: Start isEmpty. Operand 18756 states and 29827 transitions. [2019-10-13 21:17:34,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2019-10-13 21:17:34,132 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:34,133 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-13 21:17:34,133 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:34,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:34,134 INFO L82 PathProgramCache]: Analyzing trace with hash 901490695, now seen corresponding path program 1 times [2019-10-13 21:17:34,134 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:34,134 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98140215] [2019-10-13 21:17:34,134 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:34,134 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:34,135 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:34,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:34,375 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-13 21:17:34,375 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98140215] [2019-10-13 21:17:34,376 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:34,376 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 21:17:34,376 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912723612] [2019-10-13 21:17:34,377 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 21:17:34,377 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:34,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 21:17:34,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-13 21:17:34,378 INFO L87 Difference]: Start difference. First operand 18756 states and 29827 transitions. Second operand 8 states.