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_spec1_product21.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:13:06,829 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:13:06,832 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:13:06,853 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:13:06,853 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:13:06,855 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:13:06,857 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:13:06,869 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:13:06,871 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:13:06,873 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:13:06,874 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:13:06,875 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:13:06,875 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:13:06,876 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:13:06,877 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:13:06,878 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:13:06,879 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:13:06,880 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:13:06,881 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:13:06,883 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:13:06,885 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:13:06,886 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:13:06,887 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:13:06,887 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:13:06,890 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:13:06,890 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:13:06,890 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:13:06,891 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:13:06,892 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:13:06,893 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:13:06,893 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:13:06,894 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:13:06,895 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:13:06,895 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:13:06,896 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:13:06,897 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:13:06,897 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:13:06,898 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:13:06,898 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:13:06,899 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:13:06,900 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:13:06,900 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 01:13:06,920 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:13:06,921 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:13:06,925 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:13:06,926 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:13:06,926 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:13:06,926 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:13:06,926 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:13:06,927 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:13:06,927 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:13:06,927 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:13:06,927 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:13:06,927 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:13:06,928 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:13:06,928 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:13:06,928 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:13:06,928 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:13:06,928 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:13:06,929 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:13:06,929 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:13:06,929 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:13:06,929 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:13:06,929 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:13:06,930 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:13:06,930 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:13:06,930 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:13:06,930 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:13:06,931 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:13:06,931 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:13:06,931 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 [2019-10-15 01:13:07,244 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:13:07,257 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:13:07,261 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:13:07,262 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:13:07,263 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:13:07,263 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec1_product21.cil.c [2019-10-15 01:13:07,325 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/877e3cac0/d859c7b056e34932be465c009607b7ae/FLAGc5eb96d26 [2019-10-15 01:13:07,974 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:13:07,975 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec1_product21.cil.c [2019-10-15 01:13:08,009 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/877e3cac0/d859c7b056e34932be465c009607b7ae/FLAGc5eb96d26 [2019-10-15 01:13:08,199 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/877e3cac0/d859c7b056e34932be465c009607b7ae [2019-10-15 01:13:08,211 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:13:08,214 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:13:08,215 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:13:08,215 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:13:08,218 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:13:08,219 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:13:08" (1/1) ... [2019-10-15 01:13:08,222 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11a27626 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:08, skipping insertion in model container [2019-10-15 01:13:08,222 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:13:08" (1/1) ... [2019-10-15 01:13:08,230 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:13:08,311 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:13:09,058 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:13:09,078 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:13:09,295 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:13:09,404 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:13:09,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:09 WrapperNode [2019-10-15 01:13:09,406 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:13:09,407 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:13:09,407 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:13:09,408 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:13:09,430 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:09" (1/1) ... [2019-10-15 01:13:09,430 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:09" (1/1) ... [2019-10-15 01:13:09,506 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:09" (1/1) ... [2019-10-15 01:13:09,507 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:09" (1/1) ... [2019-10-15 01:13:09,591 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:09" (1/1) ... [2019-10-15 01:13:09,640 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:09" (1/1) ... [2019-10-15 01:13:09,671 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:09" (1/1) ... [2019-10-15 01:13:09,695 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:13:09,696 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:13:09,696 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:13:09,697 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:13:09,700 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:09" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:13:09,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:13:09,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:13:09,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 01:13:09,798 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__AddressBookEncrypt_spec__1 [2019-10-15 01:13:09,798 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 01:13:09,799 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 01:13:09,800 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 01:13:09,800 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 01:13:09,801 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 01:13:09,801 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 01:13:09,802 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 01:13:09,802 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 01:13:09,802 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 01:13:09,803 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 01:13:09,804 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 01:13:09,804 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 01:13:09,807 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 01:13:09,808 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 01:13:09,808 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 01:13:09,809 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 01:13:09,809 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 01:13:09,810 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 01:13:09,810 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 01:13:09,810 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 01:13:09,811 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 01:13:09,811 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 01:13:09,811 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 01:13:09,811 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 01:13:09,812 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 01:13:09,812 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 01:13:09,812 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 01:13:09,812 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 01:13:09,812 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 01:13:09,813 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 01:13:09,813 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 01:13:09,813 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 01:13:09,813 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 01:13:09,814 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 01:13:09,814 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 01:13:09,814 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 01:13:09,814 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 01:13:09,815 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 01:13:09,815 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 01:13:09,815 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 01:13:09,815 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 01:13:09,816 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-15 01:13:09,816 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 01:13:09,816 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 01:13:09,816 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AddressBook [2019-10-15 01:13:09,817 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-15 01:13:09,817 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 01:13:09,817 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 01:13:09,817 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 01:13:09,818 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 01:13:09,818 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 01:13:09,818 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 01:13:09,818 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 01:13:09,819 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 01:13:09,819 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 01:13:09,820 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-15 01:13:09,820 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-15 01:13:09,820 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 01:13:09,821 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 01:13:09,821 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 01:13:09,822 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 01:13:09,822 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 01:13:09,822 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 01:13:09,822 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 01:13:09,823 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 01:13:09,823 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 01:13:09,823 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 01:13:09,823 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 01:13:09,824 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 01:13:09,825 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 01:13:09,825 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 01:13:09,825 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 01:13:09,826 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 01:13:09,826 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 01:13:09,826 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 01:13:09,827 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 01:13:09,827 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 01:13:09,828 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 01:13:09,828 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 01:13:09,828 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 01:13:09,829 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 01:13:09,830 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 01:13:09,830 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 01:13:09,831 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 01:13:09,831 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 01:13:09,831 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 01:13:09,832 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 01:13:09,832 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 01:13:09,832 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 01:13:09,832 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 01:13:09,833 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 01:13:09,833 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 01:13:09,833 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 01:13:09,833 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 01:13:09,834 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 01:13:09,834 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:13:09,834 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 01:13:09,834 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 01:13:09,835 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 01:13:09,835 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 01:13:09,835 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 01:13:09,835 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 01:13:09,836 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 01:13:09,836 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 01:13:09,836 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 01:13:09,836 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-15 01:13:09,836 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-15 01:13:09,837 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 01:13:09,837 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:13:09,837 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:13:09,837 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 01:13:09,838 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 01:13:09,838 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 01:13:09,839 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__AddressBookEncrypt_spec__1 [2019-10-15 01:13:09,839 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:13:09,839 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 01:13:09,840 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 01:13:09,840 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 01:13:09,840 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 01:13:09,841 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 01:13:09,843 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 01:13:09,843 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 01:13:09,843 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 01:13:09,843 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 01:13:09,844 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 01:13:09,844 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 01:13:09,844 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 01:13:09,845 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 01:13:09,845 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 01:13:09,845 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 01:13:09,846 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 01:13:09,846 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 01:13:09,847 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 01:13:09,850 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 01:13:09,851 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 01:13:09,851 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 01:13:09,852 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 01:13:09,852 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 01:13:09,852 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 01:13:09,853 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-15 01:13:09,861 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 01:13:09,861 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-15 01:13:09,861 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 01:13:09,861 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 01:13:09,861 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 01:13:09,861 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 01:13:09,862 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 01:13:09,862 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 01:13:09,862 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 01:13:09,862 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 01:13:09,863 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 01:13:09,863 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 01:13:09,863 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 01:13:09,864 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 01:13:09,864 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 01:13:09,864 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:13:09,864 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:13:09,864 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 01:13:09,864 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:13:09,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:13:09,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:13:09,865 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:13:09,865 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 01:13:09,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:13:09,865 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 01:13:09,866 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 01:13:09,866 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:13:09,866 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 01:13:09,866 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 01:13:09,867 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 01:13:09,867 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 01:13:09,867 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 01:13:09,867 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 01:13:09,868 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 01:13:09,868 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 01:13:09,868 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 01:13:09,868 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 01:13:09,868 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 01:13:09,869 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 01:13:09,869 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 01:13:09,869 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 01:13:09,869 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 01:13:09,870 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 01:13:09,870 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 01:13:09,870 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 01:13:09,870 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 01:13:09,870 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 01:13:09,871 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 01:13:09,871 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 01:13:09,871 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 01:13:09,871 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 01:13:09,872 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 01:13:09,872 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 01:13:09,872 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 01:13:09,872 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-15 01:13:09,873 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-15 01:13:09,873 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 01:13:09,873 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-15 01:13:09,873 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AddressBook [2019-10-15 01:13:09,873 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-15 01:13:09,874 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 01:13:09,874 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 01:13:09,874 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 01:13:09,874 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 01:13:09,874 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 01:13:09,874 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 01:13:09,875 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 01:13:09,875 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 01:13:09,875 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 01:13:09,876 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 01:13:09,876 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 01:13:09,876 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 01:13:09,876 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 01:13:09,877 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 01:13:09,877 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 01:13:09,877 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 01:13:09,877 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 01:13:09,878 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 01:13:09,878 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 01:13:09,878 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 01:13:09,879 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 01:13:09,879 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 01:13:09,879 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 01:13:09,879 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 01:13:09,880 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 01:13:09,880 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 01:13:09,880 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:13:09,880 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 01:13:09,881 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 01:13:09,881 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 01:13:09,881 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 01:13:09,881 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 01:13:09,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:13:09,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 01:13:09,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:13:12,326 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:13:12,326 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 01:13:12,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:13:12 BoogieIcfgContainer [2019-10-15 01:13:12,328 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:13:12,329 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:13:12,329 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:13:12,333 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:13:12,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:13:08" (1/3) ... [2019-10-15 01:13:12,334 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b4dedf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:13:12, skipping insertion in model container [2019-10-15 01:13:12,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:09" (2/3) ... [2019-10-15 01:13:12,334 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b4dedf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:13:12, skipping insertion in model container [2019-10-15 01:13:12,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:13:12" (3/3) ... [2019-10-15 01:13:12,336 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec1_product21.cil.c [2019-10-15 01:13:12,347 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:13:12,357 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:13:12,369 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:13:12,401 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:13:12,402 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:13:12,402 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:13:12,402 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:13:12,402 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:13:12,402 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:13:12,402 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:13:12,403 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:13:12,445 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states. [2019-10-15 01:13:12,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2019-10-15 01:13:12,493 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:12,495 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:13:12,498 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:12,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:12,506 INFO L82 PathProgramCache]: Analyzing trace with hash 1310424730, now seen corresponding path program 1 times [2019-10-15 01:13:12,516 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:12,517 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500252138] [2019-10-15 01:13:12,521 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:12,521 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:12,521 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:12,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:13,146 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-15 01:13:13,147 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500252138] [2019-10-15 01:13:13,148 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:13,148 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 01:13:13,148 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887442649] [2019-10-15 01:13:13,154 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:13:13,156 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:13,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:13:13,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:13:13,174 INFO L87 Difference]: Start difference. First operand 569 states. Second operand 2 states. [2019-10-15 01:13:13,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:13,269 INFO L93 Difference]: Finished difference Result 824 states and 1118 transitions. [2019-10-15 01:13:13,269 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:13:13,271 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 154 [2019-10-15 01:13:13,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:13,309 INFO L225 Difference]: With dead ends: 824 [2019-10-15 01:13:13,309 INFO L226 Difference]: Without dead ends: 540 [2019-10-15 01:13:13,322 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:13:13,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2019-10-15 01:13:13,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 540. [2019-10-15 01:13:13,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 540 states. [2019-10-15 01:13:13,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 738 transitions. [2019-10-15 01:13:13,453 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 738 transitions. Word has length 154 [2019-10-15 01:13:13,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:13,456 INFO L462 AbstractCegarLoop]: Abstraction has 540 states and 738 transitions. [2019-10-15 01:13:13,456 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:13:13,456 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 738 transitions. [2019-10-15 01:13:13,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2019-10-15 01:13:13,462 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:13,467 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:13:13,467 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:13,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:13,467 INFO L82 PathProgramCache]: Analyzing trace with hash 684326183, now seen corresponding path program 1 times [2019-10-15 01:13:13,468 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:13,468 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765494724] [2019-10-15 01:13:13,468 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:13,468 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:13,469 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:13,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:13,732 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-15 01:13:13,733 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765494724] [2019-10-15 01:13:13,733 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:13,733 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:13:13,733 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105520713] [2019-10-15 01:13:13,741 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:13:13,742 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:13,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:13:13,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:13:13,743 INFO L87 Difference]: Start difference. First operand 540 states and 738 transitions. Second operand 3 states. [2019-10-15 01:13:13,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:13,817 INFO L93 Difference]: Finished difference Result 807 states and 1084 transitions. [2019-10-15 01:13:13,821 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:13:13,821 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 155 [2019-10-15 01:13:13,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:13,830 INFO L225 Difference]: With dead ends: 807 [2019-10-15 01:13:13,830 INFO L226 Difference]: Without dead ends: 543 [2019-10-15 01:13:13,833 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:13:13,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2019-10-15 01:13:13,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 542. [2019-10-15 01:13:13,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 542 states. [2019-10-15 01:13:13,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 740 transitions. [2019-10-15 01:13:13,874 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 740 transitions. Word has length 155 [2019-10-15 01:13:13,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:13,875 INFO L462 AbstractCegarLoop]: Abstraction has 542 states and 740 transitions. [2019-10-15 01:13:13,875 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:13:13,875 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 740 transitions. [2019-10-15 01:13:13,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2019-10-15 01:13:13,880 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:13,880 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:13:13,881 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:13,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:13,881 INFO L82 PathProgramCache]: Analyzing trace with hash -1057468101, now seen corresponding path program 1 times [2019-10-15 01:13:13,881 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:13,882 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454607670] [2019-10-15 01:13:13,882 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:13,882 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:13,882 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:13,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:14,194 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-15 01:13:14,194 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454607670] [2019-10-15 01:13:14,195 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:14,195 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:13:14,195 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477052040] [2019-10-15 01:13:14,196 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:13:14,196 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:14,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:13:14,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:13:14,197 INFO L87 Difference]: Start difference. First operand 542 states and 740 transitions. Second operand 3 states. [2019-10-15 01:13:14,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:14,269 INFO L93 Difference]: Finished difference Result 1062 states and 1481 transitions. [2019-10-15 01:13:14,270 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:13:14,270 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 161 [2019-10-15 01:13:14,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:14,275 INFO L225 Difference]: With dead ends: 1062 [2019-10-15 01:13:14,275 INFO L226 Difference]: Without dead ends: 585 [2019-10-15 01:13:14,277 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:13:14,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2019-10-15 01:13:14,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 584. [2019-10-15 01:13:14,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 584 states. [2019-10-15 01:13:14,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 812 transitions. [2019-10-15 01:13:14,303 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 812 transitions. Word has length 161 [2019-10-15 01:13:14,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:14,304 INFO L462 AbstractCegarLoop]: Abstraction has 584 states and 812 transitions. [2019-10-15 01:13:14,304 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:13:14,304 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 812 transitions. [2019-10-15 01:13:14,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2019-10-15 01:13:14,308 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:14,309 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:13:14,309 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:14,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:14,310 INFO L82 PathProgramCache]: Analyzing trace with hash 521417968, now seen corresponding path program 1 times [2019-10-15 01:13:14,310 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:14,310 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189530877] [2019-10-15 01:13:14,310 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:14,310 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:14,310 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:14,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:15,440 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-15 01:13:15,441 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189530877] [2019-10-15 01:13:15,441 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:15,441 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2019-10-15 01:13:15,442 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639755706] [2019-10-15 01:13:15,442 INFO L442 AbstractCegarLoop]: Interpolant automaton has 31 states [2019-10-15 01:13:15,443 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:15,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2019-10-15 01:13:15,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=858, Unknown=0, NotChecked=0, Total=930 [2019-10-15 01:13:15,446 INFO L87 Difference]: Start difference. First operand 584 states and 812 transitions. Second operand 31 states. [2019-10-15 01:13:21,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:21,565 INFO L93 Difference]: Finished difference Result 1690 states and 2394 transitions. [2019-10-15 01:13:21,566 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2019-10-15 01:13:21,566 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 162 [2019-10-15 01:13:21,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:21,575 INFO L225 Difference]: With dead ends: 1690 [2019-10-15 01:13:21,575 INFO L226 Difference]: Without dead ends: 1142 [2019-10-15 01:13:21,579 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 494 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=252, Invalid=3054, Unknown=0, NotChecked=0, Total=3306 [2019-10-15 01:13:21,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1142 states. [2019-10-15 01:13:21,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1142 to 853. [2019-10-15 01:13:21,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 853 states. [2019-10-15 01:13:21,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 853 states to 853 states and 1240 transitions. [2019-10-15 01:13:21,651 INFO L78 Accepts]: Start accepts. Automaton has 853 states and 1240 transitions. Word has length 162 [2019-10-15 01:13:21,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:21,652 INFO L462 AbstractCegarLoop]: Abstraction has 853 states and 1240 transitions. [2019-10-15 01:13:21,652 INFO L463 AbstractCegarLoop]: Interpolant automaton has 31 states. [2019-10-15 01:13:21,652 INFO L276 IsEmpty]: Start isEmpty. Operand 853 states and 1240 transitions. [2019-10-15 01:13:21,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2019-10-15 01:13:21,657 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:21,658 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:13:21,658 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:21,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:21,659 INFO L82 PathProgramCache]: Analyzing trace with hash -1681411932, now seen corresponding path program 1 times [2019-10-15 01:13:21,659 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:21,659 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362497190] [2019-10-15 01:13:21,660 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:21,660 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:21,660 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:21,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:22,633 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 01:13:22,633 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362497190] [2019-10-15 01:13:22,634 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1075601579] [2019-10-15 01:13:22,634 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:13:23,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:23,286 INFO L256 TraceCheckSpWp]: Trace formula consists of 2641 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-15 01:13:23,306 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:13:23,553 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-15 01:13:23,553 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:13:23,965 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:13:24,110 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:13:24,174 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-15 01:13:24,175 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 01:13:24,175 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [31, 7] total 39 [2019-10-15 01:13:24,175 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857721207] [2019-10-15 01:13:24,176 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 01:13:24,176 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:24,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 01:13:24,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=1372, Unknown=0, NotChecked=0, Total=1482 [2019-10-15 01:13:24,177 INFO L87 Difference]: Start difference. First operand 853 states and 1240 transitions. Second operand 7 states. [2019-10-15 01:13:25,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:25,291 INFO L93 Difference]: Finished difference Result 1659 states and 2433 transitions. [2019-10-15 01:13:25,291 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:13:25,292 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 163 [2019-10-15 01:13:25,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:25,299 INFO L225 Difference]: With dead ends: 1659 [2019-10-15 01:13:25,299 INFO L226 Difference]: Without dead ends: 857 [2019-10-15 01:13:25,303 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 319 SyntacticMatches, 3 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=128, Invalid=1512, Unknown=0, NotChecked=0, Total=1640 [2019-10-15 01:13:25,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 857 states. [2019-10-15 01:13:25,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 857 to 857. [2019-10-15 01:13:25,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 857 states. [2019-10-15 01:13:25,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 857 states to 857 states and 1245 transitions. [2019-10-15 01:13:25,348 INFO L78 Accepts]: Start accepts. Automaton has 857 states and 1245 transitions. Word has length 163 [2019-10-15 01:13:25,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:25,348 INFO L462 AbstractCegarLoop]: Abstraction has 857 states and 1245 transitions. [2019-10-15 01:13:25,348 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 01:13:25,348 INFO L276 IsEmpty]: Start isEmpty. Operand 857 states and 1245 transitions. [2019-10-15 01:13:25,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2019-10-15 01:13:25,353 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:25,353 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-15 01:13:25,564 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:13:25,565 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:25,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:25,565 INFO L82 PathProgramCache]: Analyzing trace with hash -1286349098, now seen corresponding path program 1 times [2019-10-15 01:13:25,566 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:25,566 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981092474] [2019-10-15 01:13:25,566 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:25,566 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:25,566 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:25,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:26,211 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-15 01:13:26,212 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981092474] [2019-10-15 01:13:26,212 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:26,212 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2019-10-15 01:13:26,212 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466458847] [2019-10-15 01:13:26,213 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-10-15 01:13:26,213 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:26,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-10-15 01:13:26,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=591, Unknown=0, NotChecked=0, Total=650 [2019-10-15 01:13:26,214 INFO L87 Difference]: Start difference. First operand 857 states and 1245 transitions. Second operand 26 states. [2019-10-15 01:13:37,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:37,013 INFO L93 Difference]: Finished difference Result 2748 states and 3875 transitions. [2019-10-15 01:13:37,013 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2019-10-15 01:13:37,013 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 164 [2019-10-15 01:13:37,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:37,029 INFO L225 Difference]: With dead ends: 2748 [2019-10-15 01:13:37,029 INFO L226 Difference]: Without dead ends: 2493 [2019-10-15 01:13:37,033 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1520 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=724, Invalid=5596, Unknown=0, NotChecked=0, Total=6320 [2019-10-15 01:13:37,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2493 states. [2019-10-15 01:13:37,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2493 to 1924. [2019-10-15 01:13:37,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1924 states. [2019-10-15 01:13:37,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1924 states to 1924 states and 2794 transitions. [2019-10-15 01:13:37,148 INFO L78 Accepts]: Start accepts. Automaton has 1924 states and 2794 transitions. Word has length 164 [2019-10-15 01:13:37,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:37,148 INFO L462 AbstractCegarLoop]: Abstraction has 1924 states and 2794 transitions. [2019-10-15 01:13:37,149 INFO L463 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-10-15 01:13:37,149 INFO L276 IsEmpty]: Start isEmpty. Operand 1924 states and 2794 transitions. [2019-10-15 01:13:37,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2019-10-15 01:13:37,157 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:37,157 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-15 01:13:37,157 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:37,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:37,158 INFO L82 PathProgramCache]: Analyzing trace with hash -780705449, now seen corresponding path program 1 times [2019-10-15 01:13:37,158 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:37,158 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190077837] [2019-10-15 01:13:37,158 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:37,158 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:37,158 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:37,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:37,382 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-15 01:13:37,382 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190077837] [2019-10-15 01:13:37,383 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:37,383 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-15 01:13:37,383 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812217027] [2019-10-15 01:13:37,384 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-15 01:13:37,385 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:37,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-15 01:13:37,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-10-15 01:13:37,385 INFO L87 Difference]: Start difference. First operand 1924 states and 2794 transitions. Second operand 11 states. [2019-10-15 01:13:38,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:38,127 INFO L93 Difference]: Finished difference Result 2791 states and 3999 transitions. [2019-10-15 01:13:38,128 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-15 01:13:38,128 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 165 [2019-10-15 01:13:38,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:38,146 INFO L225 Difference]: With dead ends: 2791 [2019-10-15 01:13:38,147 INFO L226 Difference]: Without dead ends: 2023 [2019-10-15 01:13:38,153 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2019-10-15 01:13:38,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2023 states. [2019-10-15 01:13:38,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2023 to 2023. [2019-10-15 01:13:38,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2023 states. [2019-10-15 01:13:38,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2023 states to 2023 states and 2951 transitions. [2019-10-15 01:13:38,285 INFO L78 Accepts]: Start accepts. Automaton has 2023 states and 2951 transitions. Word has length 165 [2019-10-15 01:13:38,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:38,285 INFO L462 AbstractCegarLoop]: Abstraction has 2023 states and 2951 transitions. [2019-10-15 01:13:38,286 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-15 01:13:38,286 INFO L276 IsEmpty]: Start isEmpty. Operand 2023 states and 2951 transitions. [2019-10-15 01:13:38,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2019-10-15 01:13:38,294 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:38,294 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-15 01:13:38,295 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:38,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:38,295 INFO L82 PathProgramCache]: Analyzing trace with hash 599970905, now seen corresponding path program 1 times [2019-10-15 01:13:38,295 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:38,296 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587227182] [2019-10-15 01:13:38,296 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:38,296 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:38,296 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:38,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:38,636 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-15 01:13:38,637 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587227182] [2019-10-15 01:13:38,637 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:38,637 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-15 01:13:38,638 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149392878] [2019-10-15 01:13:38,639 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-15 01:13:38,639 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:38,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-15 01:13:38,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2019-10-15 01:13:38,640 INFO L87 Difference]: Start difference. First operand 2023 states and 2951 transitions. Second operand 12 states. [2019-10-15 01:13:39,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:39,000 INFO L93 Difference]: Finished difference Result 2857 states and 4091 transitions. [2019-10-15 01:13:39,001 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-15 01:13:39,001 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 165 [2019-10-15 01:13:39,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:39,021 INFO L225 Difference]: With dead ends: 2857 [2019-10-15 01:13:39,022 INFO L226 Difference]: Without dead ends: 2020 [2019-10-15 01:13:39,031 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2019-10-15 01:13:39,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2020 states. [2019-10-15 01:13:39,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2020 to 2020. [2019-10-15 01:13:39,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2020 states. [2019-10-15 01:13:39,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2020 states to 2020 states and 2942 transitions. [2019-10-15 01:13:39,197 INFO L78 Accepts]: Start accepts. Automaton has 2020 states and 2942 transitions. Word has length 165 [2019-10-15 01:13:39,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:39,198 INFO L462 AbstractCegarLoop]: Abstraction has 2020 states and 2942 transitions. [2019-10-15 01:13:39,198 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-15 01:13:39,198 INFO L276 IsEmpty]: Start isEmpty. Operand 2020 states and 2942 transitions. [2019-10-15 01:13:39,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2019-10-15 01:13:39,214 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:39,214 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-15 01:13:39,215 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:39,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:39,215 INFO L82 PathProgramCache]: Analyzing trace with hash 2065662857, now seen corresponding path program 1 times [2019-10-15 01:13:39,218 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:39,218 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568055534] [2019-10-15 01:13:39,218 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:39,219 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:39,219 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:39,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:39,457 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-15 01:13:39,458 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568055534] [2019-10-15 01:13:39,458 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:39,458 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 01:13:39,459 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047890298] [2019-10-15 01:13:39,459 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:13:39,460 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:39,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:13:39,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:13:39,460 INFO L87 Difference]: Start difference. First operand 2020 states and 2942 transitions. Second operand 5 states. [2019-10-15 01:13:40,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:40,873 INFO L93 Difference]: Finished difference Result 5073 states and 7252 transitions. [2019-10-15 01:13:40,874 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:13:40,874 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 165 [2019-10-15 01:13:40,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:40,954 INFO L225 Difference]: With dead ends: 5073 [2019-10-15 01:13:40,954 INFO L226 Difference]: Without dead ends: 4254 [2019-10-15 01:13:40,960 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 [2019-10-15 01:13:40,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4254 states. [2019-10-15 01:13:41,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4254 to 3983. [2019-10-15 01:13:41,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3983 states. [2019-10-15 01:13:41,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3983 states to 3983 states and 5687 transitions. [2019-10-15 01:13:41,202 INFO L78 Accepts]: Start accepts. Automaton has 3983 states and 5687 transitions. Word has length 165 [2019-10-15 01:13:41,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:41,205 INFO L462 AbstractCegarLoop]: Abstraction has 3983 states and 5687 transitions. [2019-10-15 01:13:41,205 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:13:41,205 INFO L276 IsEmpty]: Start isEmpty. Operand 3983 states and 5687 transitions. [2019-10-15 01:13:41,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2019-10-15 01:13:41,219 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:41,219 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-15 01:13:41,219 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:41,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:41,220 INFO L82 PathProgramCache]: Analyzing trace with hash 55559016, now seen corresponding path program 1 times [2019-10-15 01:13:41,220 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:41,221 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639822741] [2019-10-15 01:13:41,221 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:41,222 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:41,222 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY