java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/product-lines/email_spec6_product31.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:16:15,770 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:16:15,773 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:16:15,789 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:16:15,790 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:16:15,792 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:16:15,794 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:16:15,804 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:16:15,806 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:16:15,808 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:16:15,810 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:16:15,811 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:16:15,813 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:16:15,814 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:16:15,815 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:16:15,818 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:16:15,819 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:16:15,820 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:16:15,822 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:16:15,828 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:16:15,833 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:16:15,836 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:16:15,839 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:16:15,840 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:16:15,843 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:16:15,843 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:16:15,843 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:16:15,845 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:16:15,846 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:16:15,847 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:16:15,848 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:16:15,850 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:16:15,851 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:16:15,851 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:16:15,853 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:16:15,854 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:16:15,854 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:16:15,854 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:16:15,855 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:16:15,856 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:16:15,857 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:16:15,858 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 01:16:15,880 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:16:15,880 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:16:15,883 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:16:15,883 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:16:15,883 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:16:15,884 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:16:15,884 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:16:15,884 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:16:15,884 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:16:15,884 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:16:15,885 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:16:15,886 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:16:15,886 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:16:15,886 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:16:15,887 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:16:15,887 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:16:15,887 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:16:15,887 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:16:15,888 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:16:15,888 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:16:15,888 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:16:15,888 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:16:15,888 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:16:15,889 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:16:15,889 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:16:15,889 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:16:15,889 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:16:15,889 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:16:15,889 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-15 01:16:16,260 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:16:16,282 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:16:16,286 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:16:16,288 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:16:16,290 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:16:16,291 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec6_product31.cil.c [2019-10-15 01:16:16,371 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65986295e/51717c04109642c58cdfb669df62a912/FLAG0844cbe9a [2019-10-15 01:16:16,980 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:16:16,983 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec6_product31.cil.c [2019-10-15 01:16:17,012 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65986295e/51717c04109642c58cdfb669df62a912/FLAG0844cbe9a [2019-10-15 01:16:17,238 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65986295e/51717c04109642c58cdfb669df62a912 [2019-10-15 01:16:17,248 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:16:17,250 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:16:17,251 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:16:17,251 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:16:17,255 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:16:17,256 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:16:17" (1/1) ... [2019-10-15 01:16:17,259 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@528d6d3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:17, skipping insertion in model container [2019-10-15 01:16:17,259 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:16:17" (1/1) ... [2019-10-15 01:16:17,267 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:16:17,358 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:16:18,203 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:16:18,230 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:16:18,389 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:16:18,497 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:16:18,498 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:18 WrapperNode [2019-10-15 01:16:18,499 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:16:18,500 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:16:18,500 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:16:18,500 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:16:18,515 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:18" (1/1) ... [2019-10-15 01:16:18,515 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:18" (1/1) ... [2019-10-15 01:16:18,581 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:18" (1/1) ... [2019-10-15 01:16:18,582 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:18" (1/1) ... [2019-10-15 01:16:18,656 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:18" (1/1) ... [2019-10-15 01:16:18,700 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:18" (1/1) ... [2019-10-15 01:16:18,719 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:18" (1/1) ... [2019-10-15 01:16:18,754 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:16:18,755 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:16:18,755 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:16:18,755 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:16:18,758 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:18" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:16:18,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:16:18,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:16:18,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 01:16:18,848 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 01:16:18,848 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 01:16:18,849 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Encrypt [2019-10-15 01:16:18,849 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-15 01:16:18,849 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 01:16:18,850 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 01:16:18,850 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 01:16:18,851 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 01:16:18,851 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 01:16:18,851 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 01:16:18,852 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 01:16:18,852 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 01:16:18,852 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 01:16:18,855 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 01:16:18,855 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 01:16:18,855 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 01:16:18,856 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 01:16:18,856 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 01:16:18,856 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 01:16:18,856 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 01:16:18,856 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 01:16:18,856 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 01:16:18,857 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 01:16:18,857 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 01:16:18,857 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 01:16:18,857 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 01:16:18,857 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 01:16:18,857 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 01:16:18,857 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 01:16:18,858 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 01:16:18,858 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 01:16:18,858 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 01:16:18,858 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 01:16:18,859 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 01:16:18,859 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 01:16:18,859 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 01:16:18,859 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 01:16:18,859 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 01:16:18,860 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 01:16:18,860 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 01:16:18,860 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 01:16:18,860 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 01:16:18,860 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 01:16:18,860 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 01:16:18,860 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 01:16:18,860 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 01:16:18,861 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 01:16:18,861 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 01:16:18,861 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 01:16:18,861 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 01:16:18,861 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 01:16:18,861 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 01:16:18,861 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 01:16:18,862 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 01:16:18,862 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 01:16:18,862 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:16:18,862 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 01:16:18,862 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 01:16:18,862 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 01:16:18,863 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 01:16:18,863 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 01:16:18,863 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 01:16:18,863 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 01:16:18,863 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 01:16:18,864 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 01:16:18,864 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-15 01:16:18,864 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 01:16:18,864 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 01:16:18,864 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-15 01:16:18,864 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 01:16:18,865 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 01:16:18,865 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-15 01:16:18,865 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-15 01:16:18,866 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-15 01:16:18,866 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 01:16:18,866 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 01:16:18,867 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 01:16:18,867 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 01:16:18,867 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 01:16:18,867 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 01:16:18,867 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 01:16:18,868 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 01:16:18,868 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 01:16:18,868 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-15 01:16:18,869 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-15 01:16:18,869 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-15 01:16:18,869 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-15 01:16:18,870 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-15 01:16:18,870 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 01:16:18,870 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 01:16:18,870 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 01:16:18,870 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 01:16:18,870 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 01:16:18,870 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 01:16:18,871 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 01:16:18,871 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 01:16:18,871 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 01:16:18,871 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 01:16:18,871 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 01:16:18,871 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 01:16:18,871 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 01:16:18,872 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 01:16:18,872 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 01:16:18,872 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 01:16:18,872 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 01:16:18,872 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 01:16:18,872 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 01:16:18,873 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 01:16:18,873 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 01:16:18,873 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 01:16:18,873 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 01:16:18,873 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 01:16:18,874 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 01:16:18,874 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:16:18,874 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:16:18,874 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 01:16:18,875 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 01:16:18,875 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:16:18,875 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 01:16:18,876 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 01:16:18,876 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 01:16:18,877 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 01:16:18,877 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 01:16:18,877 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 01:16:18,878 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 01:16:18,878 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 01:16:18,878 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 01:16:18,878 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 01:16:18,879 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 01:16:18,879 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 01:16:18,879 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 01:16:18,879 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 01:16:18,879 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 01:16:18,880 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Encrypt [2019-10-15 01:16:18,883 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-15 01:16:18,884 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 01:16:18,884 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 01:16:18,885 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 01:16:18,885 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 01:16:18,885 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 01:16:18,886 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 01:16:18,892 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 01:16:18,892 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 01:16:18,892 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 01:16:18,892 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 01:16:18,892 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 01:16:18,893 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 01:16:18,893 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 01:16:18,893 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 01:16:18,894 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 01:16:18,895 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 01:16:18,895 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 01:16:18,895 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 01:16:18,895 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 01:16:18,895 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 01:16:18,895 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 01:16:18,896 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 01:16:18,896 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 01:16:18,896 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 01:16:18,896 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 01:16:18,896 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 01:16:18,897 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 01:16:18,897 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 01:16:18,897 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 01:16:18,897 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 01:16:18,897 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 01:16:18,897 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 01:16:18,898 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:16:18,898 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:16:18,898 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 01:16:18,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:16:18,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:16:18,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:16:18,899 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:16:18,899 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 01:16:18,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:16:18,899 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 01:16:18,900 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 01:16:18,900 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:16:18,900 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 01:16:18,900 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 01:16:18,900 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 01:16:18,900 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 01:16:18,901 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 01:16:18,901 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 01:16:18,901 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 01:16:18,901 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-15 01:16:18,901 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 01:16:18,902 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 01:16:18,902 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 01:16:18,902 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 01:16:18,902 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 01:16:18,902 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 01:16:18,903 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 01:16:18,903 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 01:16:18,903 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 01:16:18,903 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 01:16:18,903 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 01:16:18,903 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 01:16:18,904 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 01:16:18,904 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 01:16:18,904 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 01:16:18,904 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 01:16:18,904 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 01:16:18,905 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 01:16:18,905 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 01:16:18,905 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 01:16:18,905 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:16:18,905 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 01:16:18,906 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 01:16:18,906 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 01:16:18,906 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 01:16:18,906 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 01:16:18,906 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 01:16:18,906 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 01:16:18,907 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 01:16:18,907 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 01:16:18,907 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 01:16:18,907 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 01:16:18,907 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 01:16:18,908 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 01:16:18,908 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 01:16:18,908 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 01:16:18,908 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 01:16:18,908 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-15 01:16:18,908 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-15 01:16:18,909 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-15 01:16:18,909 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-15 01:16:18,909 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 01:16:18,909 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-15 01:16:18,909 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-15 01:16:18,909 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-15 01:16:18,910 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-15 01:16:18,910 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-15 01:16:18,910 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 01:16:18,910 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 01:16:18,910 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 01:16:18,910 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 01:16:18,911 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 01:16:18,911 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 01:16:18,911 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 01:16:18,911 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:16:18,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 01:16:18,911 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:16:21,227 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:16:21,227 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 01:16:21,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:16:21 BoogieIcfgContainer [2019-10-15 01:16:21,232 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:16:21,233 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:16:21,233 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:16:21,237 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:16:21,237 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:16:17" (1/3) ... [2019-10-15 01:16:21,238 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e2b2066 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:16:21, skipping insertion in model container [2019-10-15 01:16:21,238 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:18" (2/3) ... [2019-10-15 01:16:21,239 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e2b2066 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:16:21, skipping insertion in model container [2019-10-15 01:16:21,239 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:16:21" (3/3) ... [2019-10-15 01:16:21,240 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec6_product31.cil.c [2019-10-15 01:16:21,252 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:16:21,267 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:16:21,280 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:16:21,333 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:16:21,337 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:16:21,337 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:16:21,338 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:16:21,338 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:16:21,338 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:16:21,338 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:16:21,338 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:16:21,381 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states. [2019-10-15 01:16:21,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2019-10-15 01:16:21,420 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:21,423 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:21,426 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:21,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:21,433 INFO L82 PathProgramCache]: Analyzing trace with hash -1627872487, now seen corresponding path program 1 times [2019-10-15 01:16:21,445 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:21,446 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476513030] [2019-10-15 01:16:21,446 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:21,446 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:21,447 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:21,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:22,229 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:16:22,230 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476513030] [2019-10-15 01:16:22,231 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:22,232 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 01:16:22,232 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100743707] [2019-10-15 01:16:22,238 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:16:22,239 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:22,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:16:22,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:16:22,258 INFO L87 Difference]: Start difference. First operand 566 states. Second operand 2 states. [2019-10-15 01:16:22,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:22,337 INFO L93 Difference]: Finished difference Result 874 states and 1147 transitions. [2019-10-15 01:16:22,337 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:16:22,338 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 189 [2019-10-15 01:16:22,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:22,362 INFO L225 Difference]: With dead ends: 874 [2019-10-15 01:16:22,363 INFO L226 Difference]: Without dead ends: 543 [2019-10-15 01:16:22,370 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:16:22,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2019-10-15 01:16:22,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 543. [2019-10-15 01:16:22,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 543 states. [2019-10-15 01:16:22,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 717 transitions. [2019-10-15 01:16:22,467 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 717 transitions. Word has length 189 [2019-10-15 01:16:22,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:22,470 INFO L462 AbstractCegarLoop]: Abstraction has 543 states and 717 transitions. [2019-10-15 01:16:22,470 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:16:22,470 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 717 transitions. [2019-10-15 01:16:22,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2019-10-15 01:16:22,476 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:22,476 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:22,477 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:22,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:22,477 INFO L82 PathProgramCache]: Analyzing trace with hash -43680010, now seen corresponding path program 1 times [2019-10-15 01:16:22,477 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:22,478 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007469750] [2019-10-15 01:16:22,478 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:22,478 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:22,478 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:22,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:22,780 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:16:22,781 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007469750] [2019-10-15 01:16:22,781 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:22,781 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:16:22,781 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742093674] [2019-10-15 01:16:22,784 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:16:22,784 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:22,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:16:22,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:22,785 INFO L87 Difference]: Start difference. First operand 543 states and 717 transitions. Second operand 3 states. [2019-10-15 01:16:22,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:22,880 INFO L93 Difference]: Finished difference Result 857 states and 1114 transitions. [2019-10-15 01:16:22,880 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:16:22,880 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 190 [2019-10-15 01:16:22,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:22,888 INFO L225 Difference]: With dead ends: 857 [2019-10-15 01:16:22,889 INFO L226 Difference]: Without dead ends: 546 [2019-10-15 01:16:22,892 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:22,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states. [2019-10-15 01:16:22,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 545. [2019-10-15 01:16:22,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 545 states. [2019-10-15 01:16:22,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 719 transitions. [2019-10-15 01:16:22,924 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 719 transitions. Word has length 190 [2019-10-15 01:16:22,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:22,925 INFO L462 AbstractCegarLoop]: Abstraction has 545 states and 719 transitions. [2019-10-15 01:16:22,925 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:16:22,925 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 719 transitions. [2019-10-15 01:16:22,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2019-10-15 01:16:22,929 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:22,929 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:22,929 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:22,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:22,930 INFO L82 PathProgramCache]: Analyzing trace with hash -1696045406, now seen corresponding path program 1 times [2019-10-15 01:16:22,930 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:22,930 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508653026] [2019-10-15 01:16:22,930 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:22,931 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:22,931 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:23,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:23,199 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:16:23,199 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508653026] [2019-10-15 01:16:23,200 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:23,200 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:16:23,200 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962165507] [2019-10-15 01:16:23,203 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:16:23,206 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:23,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:16:23,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:23,207 INFO L87 Difference]: Start difference. First operand 545 states and 719 transitions. Second operand 3 states. [2019-10-15 01:16:23,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:23,317 INFO L93 Difference]: Finished difference Result 1066 states and 1436 transitions. [2019-10-15 01:16:23,317 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:16:23,318 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 196 [2019-10-15 01:16:23,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:23,336 INFO L225 Difference]: With dead ends: 1066 [2019-10-15 01:16:23,337 INFO L226 Difference]: Without dead ends: 586 [2019-10-15 01:16:23,344 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:23,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 586 states. [2019-10-15 01:16:23,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 586 to 585. [2019-10-15 01:16:23,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 585 states. [2019-10-15 01:16:23,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 788 transitions. [2019-10-15 01:16:23,399 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 788 transitions. Word has length 196 [2019-10-15 01:16:23,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:23,401 INFO L462 AbstractCegarLoop]: Abstraction has 585 states and 788 transitions. [2019-10-15 01:16:23,401 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:16:23,402 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 788 transitions. [2019-10-15 01:16:23,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2019-10-15 01:16:23,413 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:23,414 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:23,414 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:23,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:23,415 INFO L82 PathProgramCache]: Analyzing trace with hash -1296301565, now seen corresponding path program 1 times [2019-10-15 01:16:23,415 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:23,415 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986057337] [2019-10-15 01:16:23,416 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:23,416 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:23,417 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:23,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:23,904 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:16:23,905 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986057337] [2019-10-15 01:16:23,905 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:23,905 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-15 01:16:23,906 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357844467] [2019-10-15 01:16:23,907 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-15 01:16:23,907 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:23,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-15 01:16:23,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2019-10-15 01:16:23,909 INFO L87 Difference]: Start difference. First operand 585 states and 788 transitions. Second operand 11 states. [2019-10-15 01:16:29,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:29,690 INFO L93 Difference]: Finished difference Result 3072 states and 4085 transitions. [2019-10-15 01:16:29,690 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2019-10-15 01:16:29,691 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 197 [2019-10-15 01:16:29,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:29,728 INFO L225 Difference]: With dead ends: 3072 [2019-10-15 01:16:29,729 INFO L226 Difference]: Without dead ends: 2362 [2019-10-15 01:16:29,735 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=190, Invalid=802, Unknown=0, NotChecked=0, Total=992 [2019-10-15 01:16:29,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2362 states. [2019-10-15 01:16:29,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2362 to 2347. [2019-10-15 01:16:29,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2347 states. [2019-10-15 01:16:29,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2347 states to 2347 states and 3065 transitions. [2019-10-15 01:16:29,893 INFO L78 Accepts]: Start accepts. Automaton has 2347 states and 3065 transitions. Word has length 197 [2019-10-15 01:16:29,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:29,894 INFO L462 AbstractCegarLoop]: Abstraction has 2347 states and 3065 transitions. [2019-10-15 01:16:29,894 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-15 01:16:29,894 INFO L276 IsEmpty]: Start isEmpty. Operand 2347 states and 3065 transitions. [2019-10-15 01:16:29,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2019-10-15 01:16:29,899 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:29,899 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:29,899 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:29,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:29,900 INFO L82 PathProgramCache]: Analyzing trace with hash -1739210456, now seen corresponding path program 1 times [2019-10-15 01:16:29,900 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:29,901 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894916944] [2019-10-15 01:16:29,901 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:29,901 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:29,901 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:29,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:30,333 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:16:30,334 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894916944] [2019-10-15 01:16:30,335 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:30,335 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2019-10-15 01:16:30,335 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327264766] [2019-10-15 01:16:30,336 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-10-15 01:16:30,337 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:30,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-10-15 01:16:30,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2019-10-15 01:16:30,338 INFO L87 Difference]: Start difference. First operand 2347 states and 3065 transitions. Second operand 18 states. [2019-10-15 01:16:30,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:30,864 INFO L93 Difference]: Finished difference Result 4175 states and 5446 transitions. [2019-10-15 01:16:30,865 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-10-15 01:16:30,865 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 198 [2019-10-15 01:16:30,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:30,948 INFO L225 Difference]: With dead ends: 4175 [2019-10-15 01:16:30,948 INFO L226 Difference]: Without dead ends: 1888 [2019-10-15 01:16:30,957 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2019-10-15 01:16:30,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1888 states. [2019-10-15 01:16:31,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1888 to 1848. [2019-10-15 01:16:31,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1848 states. [2019-10-15 01:16:31,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1848 states to 1848 states and 2408 transitions. [2019-10-15 01:16:31,058 INFO L78 Accepts]: Start accepts. Automaton has 1848 states and 2408 transitions. Word has length 198 [2019-10-15 01:16:31,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:31,060 INFO L462 AbstractCegarLoop]: Abstraction has 1848 states and 2408 transitions. [2019-10-15 01:16:31,060 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-10-15 01:16:31,060 INFO L276 IsEmpty]: Start isEmpty. Operand 1848 states and 2408 transitions. [2019-10-15 01:16:31,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2019-10-15 01:16:31,064 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:31,064 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:31,064 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:31,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:31,065 INFO L82 PathProgramCache]: Analyzing trace with hash -1608111805, now seen corresponding path program 1 times [2019-10-15 01:16:31,065 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:31,065 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491782390] [2019-10-15 01:16:31,066 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:31,066 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:31,066 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:31,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:31,327 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:16:31,328 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491782390] [2019-10-15 01:16:31,329 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:31,329 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 01:16:31,330 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563420815] [2019-10-15 01:16:31,330 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 01:16:31,330 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:31,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 01:16:31,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:16:31,331 INFO L87 Difference]: Start difference. First operand 1848 states and 2408 transitions. Second operand 6 states. [2019-10-15 01:16:32,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:32,064 INFO L93 Difference]: Finished difference Result 5193 states and 6754 transitions. [2019-10-15 01:16:32,065 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 01:16:32,065 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 207 [2019-10-15 01:16:32,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:32,091 INFO L225 Difference]: With dead ends: 5193 [2019-10-15 01:16:32,091 INFO L226 Difference]: Without dead ends: 3687 [2019-10-15 01:16:32,100 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-15 01:16:32,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3687 states. [2019-10-15 01:16:32,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3687 to 3616. [2019-10-15 01:16:32,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3616 states. [2019-10-15 01:16:32,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3616 states to 3616 states and 4738 transitions. [2019-10-15 01:16:32,305 INFO L78 Accepts]: Start accepts. Automaton has 3616 states and 4738 transitions. Word has length 207 [2019-10-15 01:16:32,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:32,306 INFO L462 AbstractCegarLoop]: Abstraction has 3616 states and 4738 transitions. [2019-10-15 01:16:32,306 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 01:16:32,306 INFO L276 IsEmpty]: Start isEmpty. Operand 3616 states and 4738 transitions. [2019-10-15 01:16:32,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2019-10-15 01:16:32,312 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:32,312 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:32,312 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:32,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:32,313 INFO L82 PathProgramCache]: Analyzing trace with hash 529447440, now seen corresponding path program 1 times [2019-10-15 01:16:32,313 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:32,317 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141965896] [2019-10-15 01:16:32,318 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:32,318 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:32,318 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:32,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:32,655 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:16:32,656 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141965896] [2019-10-15 01:16:32,656 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:32,656 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-15 01:16:32,656 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166103165] [2019-10-15 01:16:32,657 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-15 01:16:32,657 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:32,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-15 01:16:32,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-10-15 01:16:32,659 INFO L87 Difference]: Start difference. First operand 3616 states and 4738 transitions. Second operand 11 states. [2019-10-15 01:16:33,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:33,135 INFO L93 Difference]: Finished difference Result 6651 states and 8619 transitions. [2019-10-15 01:16:33,135 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-15 01:16:33,135 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 208 [2019-10-15 01:16:33,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:33,160 INFO L225 Difference]: With dead ends: 6651 [2019-10-15 01:16:33,160 INFO L226 Difference]: Without dead ends: 3634 [2019-10-15 01:16:33,172 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2019-10-15 01:16:33,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3634 states. [2019-10-15 01:16:33,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3634 to 3604. [2019-10-15 01:16:33,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3604 states. [2019-10-15 01:16:33,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3604 states to 3604 states and 4712 transitions. [2019-10-15 01:16:33,337 INFO L78 Accepts]: Start accepts. Automaton has 3604 states and 4712 transitions. Word has length 208 [2019-10-15 01:16:33,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:33,338 INFO L462 AbstractCegarLoop]: Abstraction has 3604 states and 4712 transitions. [2019-10-15 01:16:33,338 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-15 01:16:33,338 INFO L276 IsEmpty]: Start isEmpty. Operand 3604 states and 4712 transitions. [2019-10-15 01:16:33,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2019-10-15 01:16:33,343 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:33,344 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:33,344 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:33,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:33,344 INFO L82 PathProgramCache]: Analyzing trace with hash 1116223559, now seen corresponding path program 1 times [2019-10-15 01:16:33,345 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:33,345 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067069284] [2019-10-15 01:16:33,345 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:33,345 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:33,345 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:33,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:33,606 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:16:33,606 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067069284] [2019-10-15 01:16:33,606 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:33,607 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 01:16:33,607 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151172300] [2019-10-15 01:16:33,607 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:16:33,608 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:33,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:16:33,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:16:33,609 INFO L87 Difference]: Start difference. First operand 3604 states and 4712 transitions. Second operand 5 states. [2019-10-15 01:16:35,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:35,143 INFO L93 Difference]: Finished difference Result 12681 states and 16577 transitions. [2019-10-15 01:16:35,144 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:16:35,144 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 208 [2019-10-15 01:16:35,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:35,197 INFO L225 Difference]: With dead ends: 12681 [2019-10-15 01:16:35,198 INFO L226 Difference]: Without dead ends: 8562 [2019-10-15 01:16:35,215 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-15 01:16:35,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8562 states. [2019-10-15 01:16:35,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8562 to 8282. [2019-10-15 01:16:35,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8282 states. [2019-10-15 01:16:35,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8282 states to 8282 states and 10870 transitions. [2019-10-15 01:16:35,762 INFO L78 Accepts]: Start accepts. Automaton has 8282 states and 10870 transitions. Word has length 208 [2019-10-15 01:16:35,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:35,763 INFO L462 AbstractCegarLoop]: Abstraction has 8282 states and 10870 transitions. [2019-10-15 01:16:35,764 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:16:35,764 INFO L276 IsEmpty]: Start isEmpty. Operand 8282 states and 10870 transitions. [2019-10-15 01:16:35,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2019-10-15 01:16:35,781 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:35,782 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:35,782 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:35,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:35,783 INFO L82 PathProgramCache]: Analyzing trace with hash 416033079, now seen corresponding path program 1 times [2019-10-15 01:16:35,784 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:35,784 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123722278] [2019-10-15 01:16:35,784 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:35,784 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:35,785 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:35,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:35,963 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:16:35,964 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123722278] [2019-10-15 01:16:35,964 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:35,964 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:16:35,964 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852683780] [2019-10-15 01:16:35,965 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:16:35,966 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:35,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:16:35,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:35,966 INFO L87 Difference]: Start difference. First operand 8282 states and 10870 transitions. Second operand 3 states. [2019-10-15 01:16:36,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:36,177 INFO L93 Difference]: Finished difference Result 16827 states and 22276 transitions. [2019-10-15 01:16:36,177 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:16:36,177 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 237 [2019-10-15 01:16:36,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:36,232 INFO L225 Difference]: With dead ends: 16827 [2019-10-15 01:16:36,233 INFO L226 Difference]: Without dead ends: 8610 [2019-10-15 01:16:36,262 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:36,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8610 states. [2019-10-15 01:16:36,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8610 to 8606. [2019-10-15 01:16:36,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8606 states. [2019-10-15 01:16:36,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8606 states to 8606 states and 11467 transitions. [2019-10-15 01:16:36,882 INFO L78 Accepts]: Start accepts. Automaton has 8606 states and 11467 transitions. Word has length 237 [2019-10-15 01:16:36,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:36,882 INFO L462 AbstractCegarLoop]: Abstraction has 8606 states and 11467 transitions. [2019-10-15 01:16:36,882 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:16:36,883 INFO L276 IsEmpty]: Start isEmpty. Operand 8606 states and 11467 transitions. [2019-10-15 01:16:36,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2019-10-15 01:16:36,898 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:36,899 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:36,899 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:36,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:36,900 INFO L82 PathProgramCache]: Analyzing trace with hash 636431702, now seen corresponding path program 1 times [2019-10-15 01:16:36,900 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:36,900 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317498080] [2019-10-15 01:16:36,901 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:36,901 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:36,901 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:36,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:37,065 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:16:37,065 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317498080] [2019-10-15 01:16:37,066 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:37,066 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:16:37,066 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305511150] [2019-10-15 01:16:37,067 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:16:37,067 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:37,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:16:37,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:37,068 INFO L87 Difference]: Start difference. First operand 8606 states and 11467 transitions. Second operand 3 states. [2019-10-15 01:16:37,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:37,285 INFO L93 Difference]: Finished difference Result 17759 states and 24003 transitions. [2019-10-15 01:16:37,285 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:16:37,286 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 238 [2019-10-15 01:16:37,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:37,329 INFO L225 Difference]: With dead ends: 17759 [2019-10-15 01:16:37,329 INFO L226 Difference]: Without dead ends: 9218 [2019-10-15 01:16:37,358 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:37,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9218 states. [2019-10-15 01:16:37,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9218 to 9214. [2019-10-15 01:16:37,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9214 states. [2019-10-15 01:16:37,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9214 states to 9214 states and 12589 transitions. [2019-10-15 01:16:37,762 INFO L78 Accepts]: Start accepts. Automaton has 9214 states and 12589 transitions. Word has length 238 [2019-10-15 01:16:37,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:37,764 INFO L462 AbstractCegarLoop]: Abstraction has 9214 states and 12589 transitions. [2019-10-15 01:16:37,764 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:16:37,764 INFO L276 IsEmpty]: Start isEmpty. Operand 9214 states and 12589 transitions. [2019-10-15 01:16:37,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2019-10-15 01:16:37,784 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:37,785 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:37,785 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:37,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:37,786 INFO L82 PathProgramCache]: Analyzing trace with hash -1090069947, now seen corresponding path program 1 times [2019-10-15 01:16:37,786 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:37,786 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943004570] [2019-10-15 01:16:37,786 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:37,787 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:37,787 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:37,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:38,125 WARN L191 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 6 [2019-10-15 01:16:38,169 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-10-15 01:16:38,170 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943004570] [2019-10-15 01:16:38,170 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:38,170 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-15 01:16:38,170 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460539277] [2019-10-15 01:16:38,171 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-15 01:16:38,171 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:38,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-15 01:16:38,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-15 01:16:38,172 INFO L87 Difference]: Start difference. First operand 9214 states and 12589 transitions. Second operand 8 states. [2019-10-15 01:16:42,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:42,988 INFO L93 Difference]: Finished difference Result 28008 states and 39757 transitions. [2019-10-15 01:16:42,988 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-15 01:16:42,988 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 245 [2019-10-15 01:16:42,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:43,081 INFO L225 Difference]: With dead ends: 28008 [2019-10-15 01:16:43,082 INFO L226 Difference]: Without dead ends: 18859 [2019-10-15 01:16:43,124 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2019-10-15 01:16:43,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18859 states. [2019-10-15 01:16:44,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18859 to 11398. [2019-10-15 01:16:44,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11398 states. [2019-10-15 01:16:44,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11398 states to 11398 states and 16993 transitions. [2019-10-15 01:16:44,124 INFO L78 Accepts]: Start accepts. Automaton has 11398 states and 16993 transitions. Word has length 245 [2019-10-15 01:16:44,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:44,125 INFO L462 AbstractCegarLoop]: Abstraction has 11398 states and 16993 transitions. [2019-10-15 01:16:44,125 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-15 01:16:44,125 INFO L276 IsEmpty]: Start isEmpty. Operand 11398 states and 16993 transitions. [2019-10-15 01:16:44,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2019-10-15 01:16:44,166 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:44,166 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:44,166 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:44,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:44,167 INFO L82 PathProgramCache]: Analyzing trace with hash 1945468677, now seen corresponding path program 1 times [2019-10-15 01:16:44,167 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:44,167 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056380058] [2019-10-15 01:16:44,167 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:44,167 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:44,168 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:44,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:44,376 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:16:44,377 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056380058] [2019-10-15 01:16:44,377 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:44,377 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-15 01:16:44,377 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883304901] [2019-10-15 01:16:44,378 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-15 01:16:44,378 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:44,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-15 01:16:44,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-15 01:16:44,379 INFO L87 Difference]: Start difference. First operand 11398 states and 16993 transitions. Second operand 8 states.