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/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/product-lines/email_spec0_product09.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:29:11,753 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:29:11,755 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:29:11,767 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:29:11,767 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:29:11,768 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:29:11,770 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:29:11,772 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:29:11,774 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:29:11,775 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:29:11,776 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:29:11,777 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:29:11,777 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:29:11,778 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:29:11,779 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:29:11,780 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:29:11,781 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:29:11,782 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:29:11,784 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:29:11,786 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:29:11,787 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:29:11,788 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:29:11,790 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:29:11,790 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:29:11,793 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:29:11,793 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:29:11,793 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:29:11,794 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:29:11,795 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:29:11,796 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:29:11,796 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:29:11,797 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:29:11,797 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:29:11,798 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:29:11,799 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:29:11,799 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:29:11,800 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:29:11,800 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:29:11,800 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:29:11,801 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:29:11,802 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:29:11,803 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-20 13:29:11,818 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:29:11,818 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:29:11,818 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:29:11,818 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:29:11,819 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:29:11,819 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:29:11,820 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:29:11,820 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:29:11,820 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:29:11,820 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:29:11,821 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:29:11,821 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:29:11,821 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:29:11,822 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:29:11,822 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:29:11,822 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:29:11,822 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:29:11,822 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:29:11,823 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:29:11,823 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:29:11,823 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:29:11,823 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:29:11,824 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:29:11,824 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:29:11,824 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:29:11,824 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:29:11,825 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:29:11,825 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:29:11,825 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:29:11,825 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:29:11,853 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:29:11,866 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:29:11,870 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:29:11,871 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:29:11,872 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:29:11,873 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec0_product09.cil.c [2019-09-20 13:29:11,938 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5968be494/935aab3e68984c07af36d840619de54c/FLAG73357093f [2019-09-20 13:29:12,529 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:29:12,529 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec0_product09.cil.c [2019-09-20 13:29:12,552 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5968be494/935aab3e68984c07af36d840619de54c/FLAG73357093f [2019-09-20 13:29:12,796 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5968be494/935aab3e68984c07af36d840619de54c [2019-09-20 13:29:12,807 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:29:12,809 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:29:12,810 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:29:12,810 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:29:12,814 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:29:12,815 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:29:12" (1/1) ... [2019-09-20 13:29:12,818 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23ac3fee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:12, skipping insertion in model container [2019-09-20 13:29:12,818 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:29:12" (1/1) ... [2019-09-20 13:29:12,826 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:29:12,904 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:29:13,605 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:29:13,642 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:29:13,887 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:29:13,971 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:29:13,972 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:13 WrapperNode [2019-09-20 13:29:13,972 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:29:13,973 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:29:13,973 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:29:13,973 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:29:13,984 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:13" (1/1) ... [2019-09-20 13:29:13,985 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:13" (1/1) ... [2019-09-20 13:29:14,012 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:13" (1/1) ... [2019-09-20 13:29:14,012 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:13" (1/1) ... [2019-09-20 13:29:14,060 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:13" (1/1) ... [2019-09-20 13:29:14,083 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:13" (1/1) ... [2019-09-20 13:29:14,094 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:13" (1/1) ... [2019-09-20 13:29:14,109 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:29:14,113 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:29:14,113 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:29:14,113 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:29:14,114 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:13" (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 [2019-09-20 13:29:14,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:29:14,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:29:14,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-20 13:29:14,181 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-20 13:29:14,181 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-20 13:29:14,181 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-20 13:29:14,182 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-20 13:29:14,182 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-20 13:29:14,182 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-09-20 13:29:14,182 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-09-20 13:29:14,182 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-09-20 13:29:14,183 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-09-20 13:29:14,183 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-09-20 13:29:14,183 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-20 13:29:14,183 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:29:14,183 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-09-20 13:29:14,184 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-09-20 13:29:14,184 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-09-20 13:29:14,184 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-09-20 13:29:14,184 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-09-20 13:29:14,185 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-09-20 13:29:14,185 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-09-20 13:29:14,185 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-09-20 13:29:14,185 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-09-20 13:29:14,185 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-09-20 13:29:14,186 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-09-20 13:29:14,186 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-09-20 13:29:14,186 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-09-20 13:29:14,186 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-09-20 13:29:14,186 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-09-20 13:29:14,187 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-09-20 13:29:14,187 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-09-20 13:29:14,187 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-09-20 13:29:14,187 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-09-20 13:29:14,187 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-09-20 13:29:14,187 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-09-20 13:29:14,188 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-09-20 13:29:14,188 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-09-20 13:29:14,188 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-20 13:29:14,188 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-20 13:29:14,188 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-20 13:29:14,189 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-20 13:29:14,189 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-20 13:29:14,189 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-20 13:29:14,189 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-09-20 13:29:14,189 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-09-20 13:29:14,190 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-09-20 13:29:14,190 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-09-20 13:29:14,190 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-09-20 13:29:14,190 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-09-20 13:29:14,190 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-09-20 13:29:14,190 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-09-20 13:29:14,191 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-09-20 13:29:14,191 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-09-20 13:29:14,191 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-09-20 13:29:14,191 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-09-20 13:29:14,191 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-09-20 13:29:14,191 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-09-20 13:29:14,192 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-09-20 13:29:14,192 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-09-20 13:29:14,192 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-09-20 13:29:14,192 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-09-20 13:29:14,192 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-09-20 13:29:14,193 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-09-20 13:29:14,193 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-09-20 13:29:14,193 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-09-20 13:29:14,193 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-09-20 13:29:14,193 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-09-20 13:29:14,194 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-09-20 13:29:14,194 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-09-20 13:29:14,194 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-09-20 13:29:14,194 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-09-20 13:29:14,194 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-09-20 13:29:14,195 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-09-20 13:29:14,195 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Base [2019-09-20 13:29:14,195 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-09-20 13:29:14,195 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-09-20 13:29:14,195 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AddressBook [2019-09-20 13:29:14,195 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-09-20 13:29:14,196 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-09-20 13:29:14,196 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-09-20 13:29:14,196 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-09-20 13:29:14,196 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-09-20 13:29:14,196 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-09-20 13:29:14,197 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-09-20 13:29:14,197 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-09-20 13:29:14,197 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-09-20 13:29:14,197 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-09-20 13:29:14,197 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-09-20 13:29:14,198 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-09-20 13:29:14,198 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-09-20 13:29:14,198 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-09-20 13:29:14,198 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-20 13:29:14,198 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptForward_spec__1 [2019-09-20 13:29:14,199 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:29:14,199 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:29:14,199 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-09-20 13:29:14,199 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-09-20 13:29:14,199 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-09-20 13:29:14,199 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-20 13:29:14,200 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-20 13:29:14,200 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-20 13:29:14,200 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-20 13:29:14,200 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-20 13:29:14,200 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-20 13:29:14,201 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-09-20 13:29:14,201 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-09-20 13:29:14,201 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-09-20 13:29:14,201 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-09-20 13:29:14,201 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-09-20 13:29:14,201 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-09-20 13:29:14,202 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-09-20 13:29:14,202 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-09-20 13:29:14,202 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-09-20 13:29:14,202 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-09-20 13:29:14,202 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-09-20 13:29:14,203 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-09-20 13:29:14,203 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-09-20 13:29:14,203 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-09-20 13:29:14,203 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-09-20 13:29:14,203 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-20 13:29:14,204 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:29:14,204 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:29:14,204 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-09-20 13:29:14,204 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-09-20 13:29:14,204 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-09-20 13:29:14,204 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-09-20 13:29:14,205 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-09-20 13:29:14,205 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-09-20 13:29:14,205 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-09-20 13:29:14,205 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-09-20 13:29:14,205 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-09-20 13:29:14,206 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-09-20 13:29:14,206 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-09-20 13:29:14,206 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-09-20 13:29:14,206 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-09-20 13:29:14,206 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-09-20 13:29:14,207 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-09-20 13:29:14,207 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-09-20 13:29:14,207 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-09-20 13:29:14,207 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-09-20 13:29:14,207 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-09-20 13:29:14,208 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-09-20 13:29:14,208 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-09-20 13:29:14,208 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-20 13:29:14,208 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:29:14,208 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:29:14,208 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-20 13:29:14,209 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:29:14,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:29:14,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:29:14,209 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:29:14,209 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-20 13:29:14,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:29:14,210 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-20 13:29:14,210 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-20 13:29:14,210 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:29:14,210 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-20 13:29:14,210 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-20 13:29:14,211 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-20 13:29:14,211 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-09-20 13:29:14,211 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-09-20 13:29:14,211 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-09-20 13:29:14,211 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-09-20 13:29:14,211 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-09-20 13:29:14,212 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-09-20 13:29:14,212 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-09-20 13:29:14,212 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-09-20 13:29:14,212 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-09-20 13:29:14,212 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-09-20 13:29:14,213 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-09-20 13:29:14,213 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-09-20 13:29:14,213 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-09-20 13:29:14,213 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-09-20 13:29:14,213 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-09-20 13:29:14,213 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-09-20 13:29:14,214 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-09-20 13:29:14,214 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-09-20 13:29:14,214 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-09-20 13:29:14,214 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-09-20 13:29:14,214 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-09-20 13:29:14,214 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-09-20 13:29:14,215 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-09-20 13:29:14,215 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-09-20 13:29:14,215 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-09-20 13:29:14,215 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-09-20 13:29:14,215 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-09-20 13:29:14,215 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-09-20 13:29:14,215 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-09-20 13:29:14,216 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-09-20 13:29:14,216 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-09-20 13:29:14,216 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-09-20 13:29:14,216 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-09-20 13:29:14,216 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Base [2019-09-20 13:29:14,216 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AddressBook [2019-09-20 13:29:14,216 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptForward_spec__1 [2019-09-20 13:29:14,217 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-09-20 13:29:14,217 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-09-20 13:29:14,217 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-09-20 13:29:14,217 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-20 13:29:14,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:29:14,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:29:14,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:29:16,012 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:29:16,013 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-09-20 13:29:16,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:29:16 BoogieIcfgContainer [2019-09-20 13:29:16,015 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:29:16,016 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:29:16,016 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:29:16,021 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:29:16,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:29:12" (1/3) ... [2019-09-20 13:29:16,022 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58db0ae5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:29:16, skipping insertion in model container [2019-09-20 13:29:16,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:13" (2/3) ... [2019-09-20 13:29:16,023 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58db0ae5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:29:16, skipping insertion in model container [2019-09-20 13:29:16,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:29:16" (3/3) ... [2019-09-20 13:29:16,025 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec0_product09.cil.c [2019-09-20 13:29:16,036 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:29:16,047 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:29:16,068 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:29:16,102 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:29:16,102 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:29:16,102 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:29:16,102 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:29:16,102 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:29:16,103 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:29:16,103 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:29:16,103 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:29:16,146 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states. [2019-09-20 13:29:16,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2019-09-20 13:29:16,185 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:16,187 INFO L407 BasicCegarLoop]: trace histogram [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] [2019-09-20 13:29:16,190 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:16,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:16,196 INFO L82 PathProgramCache]: Analyzing trace with hash -2004668171, now seen corresponding path program 1 times [2019-09-20 13:29:16,198 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:16,272 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:16,272 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:16,272 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:16,272 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:16,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:16,795 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-09-20 13:29:16,798 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:16,798 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 13:29:16,798 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:16,805 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:29:16,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:29:16,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:29:16,818 INFO L87 Difference]: Start difference. First operand 321 states. Second operand 2 states. [2019-09-20 13:29:16,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:16,859 INFO L93 Difference]: Finished difference Result 311 states and 415 transitions. [2019-09-20 13:29:16,859 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:29:16,861 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 139 [2019-09-20 13:29:16,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:16,882 INFO L225 Difference]: With dead ends: 311 [2019-09-20 13:29:16,882 INFO L226 Difference]: Without dead ends: 302 [2019-09-20 13:29:16,884 INFO L636 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 [2019-09-20 13:29:16,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2019-09-20 13:29:16,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 302. [2019-09-20 13:29:16,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 302 states. [2019-09-20 13:29:16,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 404 transitions. [2019-09-20 13:29:16,955 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 404 transitions. Word has length 139 [2019-09-20 13:29:16,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:16,958 INFO L475 AbstractCegarLoop]: Abstraction has 302 states and 404 transitions. [2019-09-20 13:29:16,958 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:29:16,958 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 404 transitions. [2019-09-20 13:29:16,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2019-09-20 13:29:16,961 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:16,962 INFO L407 BasicCegarLoop]: trace histogram [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] [2019-09-20 13:29:16,962 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:16,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:16,963 INFO L82 PathProgramCache]: Analyzing trace with hash 406491855, now seen corresponding path program 1 times [2019-09-20 13:29:16,963 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:16,967 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:16,967 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:16,968 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:16,968 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:17,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:17,170 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-09-20 13:29:17,171 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:17,171 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:29:17,171 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:17,177 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:29:17,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:29:17,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:29:17,178 INFO L87 Difference]: Start difference. First operand 302 states and 404 transitions. Second operand 3 states. [2019-09-20 13:29:17,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:17,222 INFO L93 Difference]: Finished difference Result 305 states and 407 transitions. [2019-09-20 13:29:17,222 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:29:17,222 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 140 [2019-09-20 13:29:17,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:17,227 INFO L225 Difference]: With dead ends: 305 [2019-09-20 13:29:17,227 INFO L226 Difference]: Without dead ends: 305 [2019-09-20 13:29:17,228 INFO L636 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 [2019-09-20 13:29:17,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2019-09-20 13:29:17,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 304. [2019-09-20 13:29:17,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 304 states. [2019-09-20 13:29:17,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 406 transitions. [2019-09-20 13:29:17,303 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 406 transitions. Word has length 140 [2019-09-20 13:29:17,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:17,307 INFO L475 AbstractCegarLoop]: Abstraction has 304 states and 406 transitions. [2019-09-20 13:29:17,307 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:29:17,307 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 406 transitions. [2019-09-20 13:29:17,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2019-09-20 13:29:17,311 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:17,312 INFO L407 BasicCegarLoop]: trace histogram [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] [2019-09-20 13:29:17,312 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:17,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:17,313 INFO L82 PathProgramCache]: Analyzing trace with hash 356181584, now seen corresponding path program 1 times [2019-09-20 13:29:17,313 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:17,318 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:17,318 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:17,318 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:17,319 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:17,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:17,620 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-09-20 13:29:17,622 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:17,622 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:29:17,623 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:17,624 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:29:17,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:29:17,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:29:17,625 INFO L87 Difference]: Start difference. First operand 304 states and 406 transitions. Second operand 6 states. [2019-09-20 13:29:18,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:18,050 INFO L93 Difference]: Finished difference Result 568 states and 769 transitions. [2019-09-20 13:29:18,050 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:29:18,050 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 145 [2019-09-20 13:29:18,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:18,056 INFO L225 Difference]: With dead ends: 568 [2019-09-20 13:29:18,057 INFO L226 Difference]: Without dead ends: 568 [2019-09-20 13:29:18,057 INFO L636 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 [2019-09-20 13:29:18,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2019-09-20 13:29:18,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 559. [2019-09-20 13:29:18,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 559 states. [2019-09-20 13:29:18,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 761 transitions. [2019-09-20 13:29:18,096 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 761 transitions. Word has length 145 [2019-09-20 13:29:18,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:18,097 INFO L475 AbstractCegarLoop]: Abstraction has 559 states and 761 transitions. [2019-09-20 13:29:18,097 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:29:18,097 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 761 transitions. [2019-09-20 13:29:18,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2019-09-20 13:29:18,103 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:18,104 INFO L407 BasicCegarLoop]: trace histogram [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] [2019-09-20 13:29:18,105 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:18,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:18,105 INFO L82 PathProgramCache]: Analyzing trace with hash -39139202, now seen corresponding path program 1 times [2019-09-20 13:29:18,106 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:18,110 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:18,110 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:18,110 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:18,110 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:18,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:18,332 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-09-20 13:29:18,333 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:18,333 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:29:18,333 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:18,334 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:29:18,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:29:18,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:29:18,335 INFO L87 Difference]: Start difference. First operand 559 states and 761 transitions. Second operand 6 states. [2019-09-20 13:29:18,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:18,686 INFO L93 Difference]: Finished difference Result 1092 states and 1495 transitions. [2019-09-20 13:29:18,686 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:29:18,686 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 146 [2019-09-20 13:29:18,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:18,695 INFO L225 Difference]: With dead ends: 1092 [2019-09-20 13:29:18,695 INFO L226 Difference]: Without dead ends: 1092 [2019-09-20 13:29:18,696 INFO L636 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 [2019-09-20 13:29:18,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1092 states. [2019-09-20 13:29:18,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1092 to 1069. [2019-09-20 13:29:18,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1069 states. [2019-09-20 13:29:18,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1069 states to 1069 states and 1473 transitions. [2019-09-20 13:29:18,753 INFO L78 Accepts]: Start accepts. Automaton has 1069 states and 1473 transitions. Word has length 146 [2019-09-20 13:29:18,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:18,754 INFO L475 AbstractCegarLoop]: Abstraction has 1069 states and 1473 transitions. [2019-09-20 13:29:18,754 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:29:18,754 INFO L276 IsEmpty]: Start isEmpty. Operand 1069 states and 1473 transitions. [2019-09-20 13:29:18,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2019-09-20 13:29:18,759 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:18,759 INFO L407 BasicCegarLoop]: trace histogram [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] [2019-09-20 13:29:18,760 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:18,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:18,760 INFO L82 PathProgramCache]: Analyzing trace with hash 1028527756, now seen corresponding path program 1 times [2019-09-20 13:29:18,760 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:18,764 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:18,764 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:18,764 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:18,764 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:18,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:18,905 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-09-20 13:29:18,906 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:18,906 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:29:18,906 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:18,907 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:29:18,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:29:18,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:29:18,907 INFO L87 Difference]: Start difference. First operand 1069 states and 1473 transitions. Second operand 6 states. [2019-09-20 13:29:19,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:19,289 INFO L93 Difference]: Finished difference Result 2090 states and 2892 transitions. [2019-09-20 13:29:19,290 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:29:19,290 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 147 [2019-09-20 13:29:19,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:19,314 INFO L225 Difference]: With dead ends: 2090 [2019-09-20 13:29:19,315 INFO L226 Difference]: Without dead ends: 1953 [2019-09-20 13:29:19,315 INFO L636 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 [2019-09-20 13:29:19,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1953 states. [2019-09-20 13:29:19,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1953 to 1912. [2019-09-20 13:29:19,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1912 states. [2019-09-20 13:29:19,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1912 states to 1912 states and 2677 transitions. [2019-09-20 13:29:19,450 INFO L78 Accepts]: Start accepts. Automaton has 1912 states and 2677 transitions. Word has length 147 [2019-09-20 13:29:19,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:19,451 INFO L475 AbstractCegarLoop]: Abstraction has 1912 states and 2677 transitions. [2019-09-20 13:29:19,451 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:29:19,451 INFO L276 IsEmpty]: Start isEmpty. Operand 1912 states and 2677 transitions. [2019-09-20 13:29:19,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2019-09-20 13:29:19,457 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:19,457 INFO L407 BasicCegarLoop]: trace histogram [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] [2019-09-20 13:29:19,458 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:19,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:19,458 INFO L82 PathProgramCache]: Analyzing trace with hash -421917126, now seen corresponding path program 1 times [2019-09-20 13:29:19,458 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:19,462 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:19,462 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:19,462 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:19,463 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:19,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:19,570 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-09-20 13:29:19,570 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:19,571 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:29:19,571 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:19,571 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:29:19,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:29:19,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:29:19,572 INFO L87 Difference]: Start difference. First operand 1912 states and 2677 transitions. Second operand 3 states. [2019-09-20 13:29:19,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:19,600 INFO L93 Difference]: Finished difference Result 2143 states and 3101 transitions. [2019-09-20 13:29:19,601 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:29:19,601 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2019-09-20 13:29:19,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:19,614 INFO L225 Difference]: With dead ends: 2143 [2019-09-20 13:29:19,614 INFO L226 Difference]: Without dead ends: 2143 [2019-09-20 13:29:19,615 INFO L636 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 [2019-09-20 13:29:19,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2143 states. [2019-09-20 13:29:19,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2143 to 2136. [2019-09-20 13:29:19,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2136 states. [2019-09-20 13:29:19,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2136 states to 2136 states and 3094 transitions. [2019-09-20 13:29:19,690 INFO L78 Accepts]: Start accepts. Automaton has 2136 states and 3094 transitions. Word has length 159 [2019-09-20 13:29:19,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:19,691 INFO L475 AbstractCegarLoop]: Abstraction has 2136 states and 3094 transitions. [2019-09-20 13:29:19,691 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:29:19,691 INFO L276 IsEmpty]: Start isEmpty. Operand 2136 states and 3094 transitions. [2019-09-20 13:29:19,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2019-09-20 13:29:19,698 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:19,699 INFO L407 BasicCegarLoop]: trace histogram [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] [2019-09-20 13:29:19,699 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:19,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:19,699 INFO L82 PathProgramCache]: Analyzing trace with hash 928674566, now seen corresponding path program 1 times [2019-09-20 13:29:19,699 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:19,704 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:19,704 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:19,704 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:19,704 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:19,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:19,864 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-09-20 13:29:19,864 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:19,865 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:29:19,865 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:19,866 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:29:19,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:29:19,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:29:19,867 INFO L87 Difference]: Start difference. First operand 2136 states and 3094 transitions. Second operand 3 states. [2019-09-20 13:29:19,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:19,912 INFO L93 Difference]: Finished difference Result 2583 states and 3911 transitions. [2019-09-20 13:29:19,913 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:29:19,913 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 160 [2019-09-20 13:29:19,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:19,930 INFO L225 Difference]: With dead ends: 2583 [2019-09-20 13:29:19,930 INFO L226 Difference]: Without dead ends: 2583 [2019-09-20 13:29:19,931 INFO L636 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 [2019-09-20 13:29:19,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2583 states. [2019-09-20 13:29:20,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2583 to 2576. [2019-09-20 13:29:20,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2576 states. [2019-09-20 13:29:20,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2576 states to 2576 states and 3904 transitions. [2019-09-20 13:29:20,051 INFO L78 Accepts]: Start accepts. Automaton has 2576 states and 3904 transitions. Word has length 160 [2019-09-20 13:29:20,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:20,052 INFO L475 AbstractCegarLoop]: Abstraction has 2576 states and 3904 transitions. [2019-09-20 13:29:20,052 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:29:20,052 INFO L276 IsEmpty]: Start isEmpty. Operand 2576 states and 3904 transitions. [2019-09-20 13:29:20,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2019-09-20 13:29:20,065 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:20,065 INFO L407 BasicCegarLoop]: trace histogram [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] [2019-09-20 13:29:20,066 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:20,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:20,066 INFO L82 PathProgramCache]: Analyzing trace with hash -2121580648, now seen corresponding path program 1 times [2019-09-20 13:29:20,067 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:20,072 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:20,072 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:20,072 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:20,072 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:20,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:20,311 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-09-20 13:29:20,311 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:20,312 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:29:20,312 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:20,313 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:29:20,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:29:20,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:29:20,313 INFO L87 Difference]: Start difference. First operand 2576 states and 3904 transitions. Second operand 3 states. [2019-09-20 13:29:20,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:20,351 INFO L93 Difference]: Finished difference Result 3447 states and 5483 transitions. [2019-09-20 13:29:20,352 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:29:20,352 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 161 [2019-09-20 13:29:20,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:20,377 INFO L225 Difference]: With dead ends: 3447 [2019-09-20 13:29:20,377 INFO L226 Difference]: Without dead ends: 3447 [2019-09-20 13:29:20,378 INFO L636 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 [2019-09-20 13:29:20,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3447 states. [2019-09-20 13:29:20,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3447 to 3440. [2019-09-20 13:29:20,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3440 states. [2019-09-20 13:29:20,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3440 states to 3440 states and 5476 transitions. [2019-09-20 13:29:20,512 INFO L78 Accepts]: Start accepts. Automaton has 3440 states and 5476 transitions. Word has length 161 [2019-09-20 13:29:20,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:20,512 INFO L475 AbstractCegarLoop]: Abstraction has 3440 states and 5476 transitions. [2019-09-20 13:29:20,513 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:29:20,513 INFO L276 IsEmpty]: Start isEmpty. Operand 3440 states and 5476 transitions. [2019-09-20 13:29:20,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2019-09-20 13:29:20,530 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:20,531 INFO L407 BasicCegarLoop]: trace histogram [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] [2019-09-20 13:29:20,535 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:20,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:20,536 INFO L82 PathProgramCache]: Analyzing trace with hash 101579176, now seen corresponding path program 1 times [2019-09-20 13:29:20,537 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:20,542 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:20,542 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:20,542 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:20,543 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:20,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:20,706 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-09-20 13:29:20,707 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:20,707 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:29:20,707 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:20,708 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:29:20,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:29:20,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:29:20,709 INFO L87 Difference]: Start difference. First operand 3440 states and 5476 transitions. Second operand 3 states. [2019-09-20 13:29:20,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:20,776 INFO L93 Difference]: Finished difference Result 5143 states and 8531 transitions. [2019-09-20 13:29:20,777 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:29:20,777 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 162 [2019-09-20 13:29:20,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:20,808 INFO L225 Difference]: With dead ends: 5143 [2019-09-20 13:29:20,808 INFO L226 Difference]: Without dead ends: 5143 [2019-09-20 13:29:20,809 INFO L636 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 [2019-09-20 13:29:20,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5143 states. [2019-09-20 13:29:20,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5143 to 5136. [2019-09-20 13:29:20,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5136 states. [2019-09-20 13:29:20,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5136 states to 5136 states and 8524 transitions. [2019-09-20 13:29:20,994 INFO L78 Accepts]: Start accepts. Automaton has 5136 states and 8524 transitions. Word has length 162 [2019-09-20 13:29:20,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:20,996 INFO L475 AbstractCegarLoop]: Abstraction has 5136 states and 8524 transitions. [2019-09-20 13:29:20,997 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:29:20,997 INFO L276 IsEmpty]: Start isEmpty. Operand 5136 states and 8524 transitions. [2019-09-20 13:29:21,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2019-09-20 13:29:21,018 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:21,019 INFO L407 BasicCegarLoop]: trace histogram [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] [2019-09-20 13:29:21,019 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:21,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:21,019 INFO L82 PathProgramCache]: Analyzing trace with hash -1981318922, now seen corresponding path program 1 times [2019-09-20 13:29:21,019 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:21,024 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:21,024 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:21,024 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:21,024 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:21,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:21,174 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-09-20 13:29:21,174 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:21,174 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:29:21,175 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:21,176 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:29:21,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:29:21,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:29:21,177 INFO L87 Difference]: Start difference. First operand 5136 states and 8524 transitions. Second operand 3 states. [2019-09-20 13:29:21,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:21,274 INFO L93 Difference]: Finished difference Result 8471 states and 14435 transitions. [2019-09-20 13:29:21,275 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:29:21,275 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 163 [2019-09-20 13:29:21,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:21,348 INFO L225 Difference]: With dead ends: 8471 [2019-09-20 13:29:21,349 INFO L226 Difference]: Without dead ends: 8471 [2019-09-20 13:29:21,349 INFO L636 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 [2019-09-20 13:29:21,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8471 states. [2019-09-20 13:29:21,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8471 to 8464. [2019-09-20 13:29:21,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8464 states. [2019-09-20 13:29:21,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8464 states to 8464 states and 14428 transitions. [2019-09-20 13:29:21,696 INFO L78 Accepts]: Start accepts. Automaton has 8464 states and 14428 transitions. Word has length 163 [2019-09-20 13:29:21,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:21,696 INFO L475 AbstractCegarLoop]: Abstraction has 8464 states and 14428 transitions. [2019-09-20 13:29:21,697 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:29:21,697 INFO L276 IsEmpty]: Start isEmpty. Operand 8464 states and 14428 transitions. [2019-09-20 13:29:21,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2019-09-20 13:29:21,736 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:21,736 INFO L407 BasicCegarLoop]: trace histogram [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] [2019-09-20 13:29:21,737 INFO L418 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:21,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:21,737 INFO L82 PathProgramCache]: Analyzing trace with hash -953317302, now seen corresponding path program 1 times [2019-09-20 13:29:21,738 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:21,743 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:21,743 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:21,743 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:21,743 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:21,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:21,928 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-09-20 13:29:21,929 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:21,929 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-20 13:29:21,929 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:21,930 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-20 13:29:21,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-20 13:29:21,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-20 13:29:21,931 INFO L87 Difference]: Start difference. First operand 8464 states and 14428 transitions. Second operand 8 states. [2019-09-20 13:29:22,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:22,012 INFO L93 Difference]: Finished difference Result 8461 states and 14419 transitions. [2019-09-20 13:29:22,012 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:29:22,012 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 164 [2019-09-20 13:29:22,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:22,013 INFO L225 Difference]: With dead ends: 8461 [2019-09-20 13:29:22,013 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:29:22,014 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-20 13:29:22,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:29:22,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:29:22,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:29:22,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:29:22,016 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 164 [2019-09-20 13:29:22,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:22,016 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:29:22,016 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-20 13:29:22,016 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:29:22,016 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:29:22,022 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:29:22 BoogieIcfgContainer [2019-09-20 13:29:22,023 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:29:22,026 INFO L168 Benchmark]: Toolchain (without parser) took 9216.08 ms. Allocated memory was 133.7 MB in the beginning and 401.6 MB in the end (delta: 267.9 MB). Free memory was 87.2 MB in the beginning and 162.2 MB in the end (delta: -75.0 MB). Peak memory consumption was 192.9 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:22,027 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 133.7 MB. Free memory was 107.9 MB in the beginning and 107.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:29:22,029 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1162.66 ms. Allocated memory was 133.7 MB in the beginning and 199.8 MB in the end (delta: 66.1 MB). Free memory was 87.0 MB in the beginning and 139.2 MB in the end (delta: -52.3 MB). Peak memory consumption was 32.1 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:22,030 INFO L168 Benchmark]: Boogie Preprocessor took 137.14 ms. Allocated memory is still 199.8 MB. Free memory was 139.2 MB in the beginning and 130.7 MB in the end (delta: 8.5 MB). Peak memory consumption was 8.5 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:22,037 INFO L168 Benchmark]: RCFGBuilder took 1901.75 ms. Allocated memory was 199.8 MB in the beginning and 264.8 MB in the end (delta: 65.0 MB). Free memory was 130.7 MB in the beginning and 203.5 MB in the end (delta: -72.7 MB). Peak memory consumption was 91.7 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:22,038 INFO L168 Benchmark]: TraceAbstraction took 6006.76 ms. Allocated memory was 264.8 MB in the beginning and 401.6 MB in the end (delta: 136.8 MB). Free memory was 201.3 MB in the beginning and 162.2 MB in the end (delta: 39.2 MB). Peak memory consumption was 176.0 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:22,050 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 133.7 MB. Free memory was 107.9 MB in the beginning and 107.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1162.66 ms. Allocated memory was 133.7 MB in the beginning and 199.8 MB in the end (delta: 66.1 MB). Free memory was 87.0 MB in the beginning and 139.2 MB in the end (delta: -52.3 MB). Peak memory consumption was 32.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 137.14 ms. Allocated memory is still 199.8 MB. Free memory was 139.2 MB in the beginning and 130.7 MB in the end (delta: 8.5 MB). Peak memory consumption was 8.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1901.75 ms. Allocated memory was 199.8 MB in the beginning and 264.8 MB in the end (delta: 65.0 MB). Free memory was 130.7 MB in the beginning and 203.5 MB in the end (delta: -72.7 MB). Peak memory consumption was 91.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 6006.76 ms. Allocated memory was 264.8 MB in the beginning and 401.6 MB in the end (delta: 136.8 MB). Free memory was 201.3 MB in the beginning and 162.2 MB in the end (delta: 39.2 MB). Peak memory consumption was 176.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 2579]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 94 procedures, 632 locations, 1 error locations. SAFE Result, 5.9s OverallTime, 11 OverallIterations, 3 TraceHistogramMax, 1.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4590 SDtfs, 1301 SDslu, 9490 SDs, 0 SdLazy, 452 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 62 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8464occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 109 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 1686 NumberOfCodeBlocks, 1686 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 1675 ConstructedInterpolants, 0 QuantifiedInterpolants, 313241 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 238/238 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...