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 --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/email_spec27_product18.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 14:47:34,872 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 14:47:34,875 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 14:47:34,887 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 14:47:34,888 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 14:47:34,889 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 14:47:34,890 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 14:47:34,892 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 14:47:34,894 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 14:47:34,895 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 14:47:34,896 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 14:47:34,897 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 14:47:34,897 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 14:47:34,898 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 14:47:34,899 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 14:47:34,900 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 14:47:34,901 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 14:47:34,902 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 14:47:34,904 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 14:47:34,906 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 14:47:34,907 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 14:47:34,908 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 14:47:34,910 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 14:47:34,911 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 14:47:34,913 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 14:47:34,913 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 14:47:34,914 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 14:47:34,915 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 14:47:34,915 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 14:47:34,916 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 14:47:34,916 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 14:47:34,917 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 14:47:34,918 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 14:47:34,919 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 14:47:34,920 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 14:47:34,920 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 14:47:34,921 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 14:47:34,921 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 14:47:34,921 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 14:47:34,922 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 14:47:34,923 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 14:47:34,924 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 [2019-10-07 14:47:34,941 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 14:47:34,941 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 14:47:34,942 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 14:47:34,943 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 14:47:34,943 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 14:47:34,944 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 14:47:34,944 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 14:47:34,944 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 14:47:34,944 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 14:47:34,944 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 14:47:34,945 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 14:47:34,945 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 14:47:34,945 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 14:47:34,945 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 14:47:34,945 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 14:47:34,945 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 14:47:34,946 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 14:47:34,946 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 14:47:34,946 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 14:47:34,946 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 14:47:34,946 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 14:47:34,947 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:47:34,947 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 14:47:34,947 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 14:47:34,948 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 14:47:34,949 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 14:47:34,949 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 14:47:34,949 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 14:47:34,949 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-07 14:47:35,283 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 14:47:35,304 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 14:47:35,309 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 14:47:35,311 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 14:47:35,311 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 14:47:35,312 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec27_product18.cil.c [2019-10-07 14:47:35,395 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7311a1c2/3fa73bc942004075b76c9acb8e6ed64a/FLAG9a2f6f79f [2019-10-07 14:47:36,115 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 14:47:36,116 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec27_product18.cil.c [2019-10-07 14:47:36,148 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7311a1c2/3fa73bc942004075b76c9acb8e6ed64a/FLAG9a2f6f79f [2019-10-07 14:47:36,355 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7311a1c2/3fa73bc942004075b76c9acb8e6ed64a [2019-10-07 14:47:36,369 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 14:47:36,370 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 14:47:36,371 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 14:47:36,371 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 14:47:36,375 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 14:47:36,376 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:47:36" (1/1) ... [2019-10-07 14:47:36,379 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f542093 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:47:36, skipping insertion in model container [2019-10-07 14:47:36,379 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:47:36" (1/1) ... [2019-10-07 14:47:36,387 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 14:47:36,461 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 14:47:37,146 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:47:37,166 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 14:47:37,339 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:47:37,435 INFO L192 MainTranslator]: Completed translation [2019-10-07 14:47:37,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:47:37 WrapperNode [2019-10-07 14:47:37,436 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 14:47:37,437 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 14:47:37,437 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 14:47:37,437 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 14:47:37,451 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:47:37" (1/1) ... [2019-10-07 14:47:37,451 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:47:37" (1/1) ... [2019-10-07 14:47:37,489 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:47:37" (1/1) ... [2019-10-07 14:47:37,489 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:47:37" (1/1) ... [2019-10-07 14:47:37,549 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:47:37" (1/1) ... [2019-10-07 14:47:37,574 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:47:37" (1/1) ... [2019-10-07 14:47:37,599 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:47:37" (1/1) ... [2019-10-07 14:47:37,616 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 14:47:37,616 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 14:47:37,617 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 14:47:37,617 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 14:47:37,618 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:47:37" (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 [2019-10-07 14:47:37,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 14:47:37,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 14:47:37,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 14:47:37,705 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-07 14:47:37,705 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-07 14:47:37,706 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-07 14:47:37,707 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-07 14:47:37,707 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-07 14:47:37,707 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-07 14:47:37,707 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-07 14:47:37,708 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-07 14:47:37,709 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 14:47:37,709 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 14:47:37,709 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-07 14:47:37,710 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-07 14:47:37,710 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-07 14:47:37,712 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-07 14:47:37,713 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-07 14:47:37,713 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-07 14:47:37,713 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-07 14:47:37,714 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-07 14:47:37,714 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-07 14:47:37,714 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-07 14:47:37,715 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 14:47:37,715 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 14:47:37,716 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 14:47:37,716 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 14:47:37,716 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 14:47:37,716 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 14:47:37,716 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-07 14:47:37,717 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-07 14:47:37,717 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-07 14:47:37,717 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-07 14:47:37,717 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-07 14:47:37,718 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-07 14:47:37,718 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-07 14:47:37,718 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-07 14:47:37,718 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-07 14:47:37,719 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-07 14:47:37,719 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-07 14:47:37,719 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-07 14:47:37,719 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-07 14:47:37,719 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-07 14:47:37,719 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-07 14:47:37,720 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-07 14:47:37,720 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-07 14:47:37,720 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-07 14:47:37,720 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-07 14:47:37,720 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-07 14:47:37,721 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-07 14:47:37,721 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-07 14:47:37,721 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-07 14:47:37,721 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-07 14:47:37,721 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-07 14:47:37,721 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-07 14:47:37,722 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-07 14:47:37,722 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-07 14:47:37,722 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-07 14:47:37,723 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AutoResponder [2019-10-07 14:47:37,723 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-07 14:47:37,724 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-07 14:47:37,724 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-07 14:47:37,724 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-07 14:47:37,724 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-07 14:47:37,725 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-07 14:47:37,725 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-07 14:47:37,725 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-07 14:47:37,725 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-07 14:47:37,725 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-07 14:47:37,726 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-07 14:47:37,726 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-07 14:47:37,726 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-07 14:47:37,726 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-07 14:47:37,727 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-07 14:47:37,728 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-07 14:47:37,728 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-07 14:47:37,728 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-07 14:47:37,729 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-07 14:47:37,729 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-07 14:47:37,729 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-07 14:47:37,730 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-07 14:47:37,730 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-07 14:47:37,730 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-07 14:47:37,730 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-07 14:47:37,731 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-07 14:47:37,731 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-07 14:47:37,731 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 14:47:37,732 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-07 14:47:37,732 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-07 14:47:37,732 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-07 14:47:37,733 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-07 14:47:37,733 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Keys [2019-10-07 14:47:37,733 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-07 14:47:37,733 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-07 14:47:37,733 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-07 14:47:37,733 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-07 14:47:37,734 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-07 14:47:37,734 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-07 14:47:37,734 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-07 14:47:37,734 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-07 14:47:37,734 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-07 14:47:37,735 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-07 14:47:37,735 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-07 14:47:37,735 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-07 14:47:37,735 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-07 14:47:37,735 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__VerifyForward_spec__1 [2019-10-07 14:47:37,735 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 14:47:37,736 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 14:47:37,736 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 14:47:37,736 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 14:47:37,736 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 14:47:37,736 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 14:47:37,737 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 14:47:37,737 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 14:47:37,737 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-07 14:47:37,737 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-07 14:47:37,738 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-07 14:47:37,738 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-07 14:47:37,738 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-07 14:47:37,738 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-07 14:47:37,739 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-07 14:47:37,739 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-07 14:47:37,739 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-07 14:47:37,739 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 14:47:37,740 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 14:47:37,741 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 14:47:37,741 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-07 14:47:37,741 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-07 14:47:37,741 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-07 14:47:37,742 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-07 14:47:37,742 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-07 14:47:37,742 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-07 14:47:37,743 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-07 14:47:37,744 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-07 14:47:37,748 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-07 14:47:37,748 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-07 14:47:37,748 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-07 14:47:37,748 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 14:47:37,749 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 14:47:37,749 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 14:47:37,749 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-07 14:47:37,750 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-07 14:47:37,750 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-07 14:47:37,751 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-07 14:47:37,757 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-07 14:47:37,757 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-07 14:47:37,757 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-07 14:47:37,757 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-07 14:47:37,757 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-07 14:47:37,758 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-07 14:47:37,758 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-07 14:47:37,758 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-07 14:47:37,759 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-07 14:47:37,759 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 14:47:37,759 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 14:47:37,760 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 14:47:37,760 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 14:47:37,760 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 14:47:37,760 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 14:47:37,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 14:47:37,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 14:47:37,761 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 14:47:37,761 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 14:47:37,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 14:47:37,761 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 14:47:37,761 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 14:47:37,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 14:47:37,762 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 14:47:37,762 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 14:47:37,762 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 14:47:37,762 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-07 14:47:37,762 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-07 14:47:37,762 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-07 14:47:37,763 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-07 14:47:37,763 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-07 14:47:37,763 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-07 14:47:37,763 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-07 14:47:37,763 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-07 14:47:37,763 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-07 14:47:37,763 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-07 14:47:37,764 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-07 14:47:37,764 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-07 14:47:37,764 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-07 14:47:37,764 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-07 14:47:37,764 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-07 14:47:37,764 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-07 14:47:37,764 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-07 14:47:37,765 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-07 14:47:37,765 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-07 14:47:37,765 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-07 14:47:37,765 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-07 14:47:37,765 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-07 14:47:37,765 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-07 14:47:37,765 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-07 14:47:37,765 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-07 14:47:37,766 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-07 14:47:37,766 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-07 14:47:37,766 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-07 14:47:37,766 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-07 14:47:37,766 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-07 14:47:37,766 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-07 14:47:37,766 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-07 14:47:37,766 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-07 14:47:37,767 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AutoResponder [2019-10-07 14:47:37,767 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-07 14:47:37,767 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-07 14:47:37,767 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-07 14:47:37,767 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-07 14:47:37,767 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-07 14:47:37,767 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-07 14:47:37,768 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-07 14:47:37,768 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-07 14:47:37,768 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-07 14:47:37,768 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-07 14:47:37,768 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-07 14:47:37,768 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-07 14:47:37,769 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-07 14:47:37,769 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-07 14:47:37,769 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-07 14:47:37,769 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-07 14:47:37,769 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-07 14:47:37,770 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-07 14:47:37,770 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-07 14:47:37,770 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-07 14:47:37,770 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-07 14:47:37,770 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-07 14:47:37,770 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-07 14:47:37,771 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-07 14:47:37,771 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-07 14:47:37,771 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__VerifyForward_spec__1 [2019-10-07 14:47:37,771 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Keys [2019-10-07 14:47:37,771 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-07 14:47:37,771 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 14:47:37,772 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 14:47:37,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 14:47:37,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 14:47:37,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 14:47:42,379 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 14:47:42,379 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-07 14:47:42,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:47:42 BoogieIcfgContainer [2019-10-07 14:47:42,381 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 14:47:42,382 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 14:47:42,383 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 14:47:42,386 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 14:47:42,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 02:47:36" (1/3) ... [2019-10-07 14:47:42,387 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43479b23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:47:42, skipping insertion in model container [2019-10-07 14:47:42,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:47:37" (2/3) ... [2019-10-07 14:47:42,387 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43479b23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:47:42, skipping insertion in model container [2019-10-07 14:47:42,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:47:42" (3/3) ... [2019-10-07 14:47:42,389 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec27_product18.cil.c [2019-10-07 14:47:42,400 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 14:47:42,413 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 14:47:42,428 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 14:47:42,478 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 14:47:42,479 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 14:47:42,479 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 14:47:42,479 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 14:47:42,479 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 14:47:42,479 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 14:47:42,479 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 14:47:42,481 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 14:47:42,520 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states. [2019-10-07 14:47:42,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2019-10-07 14:47:42,554 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:47:42,556 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:47:42,558 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:47:42,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:47:42,565 INFO L82 PathProgramCache]: Analyzing trace with hash -1476234630, now seen corresponding path program 1 times [2019-10-07 14:47:42,574 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:47:42,575 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:47:42,575 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:47:42,575 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:47:42,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:47:42,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:47:43,341 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 14:47:43,343 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:47:43,344 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:47:43,344 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 14:47:43,351 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 14:47:43,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 14:47:43,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 14:47:43,369 INFO L87 Difference]: Start difference. First operand 352 states. Second operand 2 states. [2019-10-07 14:47:43,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:47:43,447 INFO L93 Difference]: Finished difference Result 484 states and 567 transitions. [2019-10-07 14:47:43,447 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 14:47:43,449 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 143 [2019-10-07 14:47:43,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:47:43,468 INFO L225 Difference]: With dead ends: 484 [2019-10-07 14:47:43,469 INFO L226 Difference]: Without dead ends: 317 [2019-10-07 14:47:43,474 INFO L606 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 [2019-10-07 14:47:43,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2019-10-07 14:47:43,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 317. [2019-10-07 14:47:43,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 317 states. [2019-10-07 14:47:43,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 370 transitions. [2019-10-07 14:47:43,570 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 370 transitions. Word has length 143 [2019-10-07 14:47:43,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:47:43,577 INFO L462 AbstractCegarLoop]: Abstraction has 317 states and 370 transitions. [2019-10-07 14:47:43,577 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 14:47:43,578 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 370 transitions. [2019-10-07 14:47:43,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2019-10-07 14:47:43,591 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:47:43,591 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:47:43,593 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:47:43,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:47:43,594 INFO L82 PathProgramCache]: Analyzing trace with hash -1480978745, now seen corresponding path program 1 times [2019-10-07 14:47:43,594 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:47:43,594 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:47:43,595 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:47:43,595 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:47:43,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:47:43,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:47:43,922 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 14:47:43,922 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:47:43,922 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:47:43,923 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:47:43,925 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:47:43,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:47:43,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:47:43,925 INFO L87 Difference]: Start difference. First operand 317 states and 370 transitions. Second operand 3 states. [2019-10-07 14:47:43,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:47:43,961 INFO L93 Difference]: Finished difference Result 469 states and 535 transitions. [2019-10-07 14:47:43,962 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:47:43,962 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 144 [2019-10-07 14:47:43,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:47:43,966 INFO L225 Difference]: With dead ends: 469 [2019-10-07 14:47:43,967 INFO L226 Difference]: Without dead ends: 319 [2019-10-07 14:47:43,970 INFO L606 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 [2019-10-07 14:47:43,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2019-10-07 14:47:44,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 319. [2019-10-07 14:47:44,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2019-10-07 14:47:44,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 372 transitions. [2019-10-07 14:47:44,022 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 372 transitions. Word has length 144 [2019-10-07 14:47:44,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:47:44,022 INFO L462 AbstractCegarLoop]: Abstraction has 319 states and 372 transitions. [2019-10-07 14:47:44,022 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:47:44,023 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 372 transitions. [2019-10-07 14:47:44,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2019-10-07 14:47:44,027 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:47:44,027 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-07 14:47:44,027 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:47:44,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:47:44,028 INFO L82 PathProgramCache]: Analyzing trace with hash -573803076, now seen corresponding path program 1 times [2019-10-07 14:47:44,028 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:47:44,028 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:47:44,028 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:47:44,028 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:47:44,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:47:44,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:47:44,179 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 14:47:44,179 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:47:44,179 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:47:44,179 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:47:44,180 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:47:44,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:47:44,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:47:44,181 INFO L87 Difference]: Start difference. First operand 319 states and 372 transitions. Second operand 3 states. [2019-10-07 14:47:44,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:47:44,215 INFO L93 Difference]: Finished difference Result 620 states and 751 transitions. [2019-10-07 14:47:44,216 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:47:44,216 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2019-10-07 14:47:44,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:47:44,220 INFO L225 Difference]: With dead ends: 620 [2019-10-07 14:47:44,220 INFO L226 Difference]: Without dead ends: 359 [2019-10-07 14:47:44,222 INFO L606 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 [2019-10-07 14:47:44,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2019-10-07 14:47:44,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 358. [2019-10-07 14:47:44,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 358 states. [2019-10-07 14:47:44,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 440 transitions. [2019-10-07 14:47:44,246 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 440 transitions. Word has length 153 [2019-10-07 14:47:44,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:47:44,247 INFO L462 AbstractCegarLoop]: Abstraction has 358 states and 440 transitions. [2019-10-07 14:47:44,247 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:47:44,247 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 440 transitions. [2019-10-07 14:47:44,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2019-10-07 14:47:44,251 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:47:44,251 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-07 14:47:44,252 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:47:44,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:47:44,252 INFO L82 PathProgramCache]: Analyzing trace with hash 1399251957, now seen corresponding path program 1 times [2019-10-07 14:47:44,252 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:47:44,253 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:47:44,253 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:47:44,253 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:47:44,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:47:44,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:47:44,605 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 14:47:44,605 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:47:44,606 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:47:44,606 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:47:44,608 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:47:44,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:47:44,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:47:44,609 INFO L87 Difference]: Start difference. First operand 358 states and 440 transitions. Second operand 3 states. [2019-10-07 14:47:44,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:47:44,675 INFO L93 Difference]: Finished difference Result 734 states and 950 transitions. [2019-10-07 14:47:44,676 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:47:44,677 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 154 [2019-10-07 14:47:44,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:47:44,684 INFO L225 Difference]: With dead ends: 734 [2019-10-07 14:47:44,684 INFO L226 Difference]: Without dead ends: 434 [2019-10-07 14:47:44,689 INFO L606 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 [2019-10-07 14:47:44,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2019-10-07 14:47:44,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 433. [2019-10-07 14:47:44,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 433 states. [2019-10-07 14:47:44,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 570 transitions. [2019-10-07 14:47:44,737 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 570 transitions. Word has length 154 [2019-10-07 14:47:44,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:47:44,739 INFO L462 AbstractCegarLoop]: Abstraction has 433 states and 570 transitions. [2019-10-07 14:47:44,740 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:47:44,740 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 570 transitions. [2019-10-07 14:47:44,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2019-10-07 14:47:44,750 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:47:44,750 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-07 14:47:44,750 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:47:44,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:47:44,751 INFO L82 PathProgramCache]: Analyzing trace with hash -1518389017, now seen corresponding path program 1 times [2019-10-07 14:47:44,751 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:47:44,751 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:47:44,752 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:47:44,752 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:47:44,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:47:44,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:47:45,054 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 14:47:45,054 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:47:45,054 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:47:45,055 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-07 14:47:45,056 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-07 14:47:45,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-07 14:47:45,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:47:45,057 INFO L87 Difference]: Start difference. First operand 433 states and 570 transitions. Second operand 8 states. [2019-10-07 14:47:45,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:47:45,130 INFO L93 Difference]: Finished difference Result 571 states and 722 transitions. [2019-10-07 14:47:45,130 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-07 14:47:45,130 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 157 [2019-10-07 14:47:45,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:47:45,137 INFO L225 Difference]: With dead ends: 571 [2019-10-07 14:47:45,138 INFO L226 Difference]: Without dead ends: 433 [2019-10-07 14:47:45,139 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:47:45,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2019-10-07 14:47:45,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 433. [2019-10-07 14:47:45,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 433 states. [2019-10-07 14:47:45,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 569 transitions. [2019-10-07 14:47:45,169 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 569 transitions. Word has length 157 [2019-10-07 14:47:45,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:47:45,170 INFO L462 AbstractCegarLoop]: Abstraction has 433 states and 569 transitions. [2019-10-07 14:47:45,170 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-07 14:47:45,170 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 569 transitions. [2019-10-07 14:47:45,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2019-10-07 14:47:45,175 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:47:45,176 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-07 14:47:45,176 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:47:45,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:47:45,176 INFO L82 PathProgramCache]: Analyzing trace with hash -1346468815, now seen corresponding path program 1 times [2019-10-07 14:47:45,177 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:47:45,177 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:47:45,177 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:47:45,177 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:47:45,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:47:45,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:47:45,866 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-10-07 14:47:45,867 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:47:45,867 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:47:45,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:47:46,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:47:46,473 INFO L256 TraceCheckSpWp]: Trace formula consists of 2527 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:47:46,492 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:47:46,620 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 14:47:46,620 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:47:46,899 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 14:47:46,900 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 14:47:46,933 INFO L162 IcfgInterpreter]: Started Sifa with 151 locations of interest [2019-10-07 14:47:46,933 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 14:47:46,941 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 14:47:46,950 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 14:47:46,951 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 14:48:28,196 WARN L191 SmtUtils]: Spent 437.00 ms on a formula simplification that was a NOOP. DAG size: 653 [2019-10-07 14:48:32,031 WARN L191 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 269 DAG size of output: 219 [2019-10-07 14:48:32,364 WARN L191 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 685 [2019-10-07 14:48:32,626 WARN L191 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 685 [2019-10-07 14:48:32,939 WARN L191 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 685 [2019-10-07 14:48:33,201 WARN L191 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:48:33,805 WARN L191 SmtUtils]: Spent 602.00 ms on a formula simplification that was a NOOP. DAG size: 975 [2019-10-07 14:48:34,409 WARN L191 SmtUtils]: Spent 583.00 ms on a formula simplification that was a NOOP. DAG size: 975 [2019-10-07 14:48:35,009 WARN L191 SmtUtils]: Spent 596.00 ms on a formula simplification that was a NOOP. DAG size: 975 [2019-10-07 14:48:35,165 WARN L191 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:48:35,768 WARN L191 SmtUtils]: Spent 601.00 ms on a formula simplification that was a NOOP. DAG size: 975 [2019-10-07 14:48:36,880 WARN L191 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 977 DAG size of output: 975 [2019-10-07 14:48:37,450 WARN L191 SmtUtils]: Spent 567.00 ms on a formula simplification that was a NOOP. DAG size: 975 [2019-10-07 14:48:37,590 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:48:38,171 WARN L191 SmtUtils]: Spent 579.00 ms on a formula simplification that was a NOOP. DAG size: 975 [2019-10-07 14:48:38,720 WARN L191 SmtUtils]: Spent 545.00 ms on a formula simplification that was a NOOP. DAG size: 975 [2019-10-07 14:48:39,293 WARN L191 SmtUtils]: Spent 570.00 ms on a formula simplification that was a NOOP. DAG size: 975 [2019-10-07 14:48:39,419 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:48:39,980 WARN L191 SmtUtils]: Spent 558.00 ms on a formula simplification that was a NOOP. DAG size: 975 [2019-10-07 14:48:40,004 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 541 for LOIs [2019-10-07 14:48:40,389 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 622 [2019-10-07 14:48:40,506 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 622 [2019-10-07 14:48:40,627 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:48:41,060 WARN L191 SmtUtils]: Spent 431.00 ms on a formula simplification that was a NOOP. DAG size: 912 [2019-10-07 14:48:41,061 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1011 for LOIs [2019-10-07 14:48:41,621 WARN L191 SmtUtils]: Spent 559.00 ms on a formula simplification that was a NOOP. DAG size: 1011 [2019-10-07 14:48:42,178 WARN L191 SmtUtils]: Spent 553.00 ms on a formula simplification that was a NOOP. DAG size: 1011 [2019-10-07 14:48:42,404 WARN L191 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:48:43,207 WARN L191 SmtUtils]: Spent 801.00 ms on a formula simplification that was a NOOP. DAG size: 1135 [2019-10-07 14:48:43,768 WARN L191 SmtUtils]: Spent 546.00 ms on a formula simplification that was a NOOP. DAG size: 1011 [2019-10-07 14:48:44,317 WARN L191 SmtUtils]: Spent 545.00 ms on a formula simplification that was a NOOP. DAG size: 1011 [2019-10-07 14:48:44,515 WARN L191 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:48:45,302 WARN L191 SmtUtils]: Spent 784.00 ms on a formula simplification that was a NOOP. DAG size: 1135 [2019-10-07 14:48:45,931 WARN L191 SmtUtils]: Spent 599.00 ms on a formula simplification that was a NOOP. DAG size: 1011 [2019-10-07 14:48:46,473 WARN L191 SmtUtils]: Spent 538.00 ms on a formula simplification that was a NOOP. DAG size: 1011 [2019-10-07 14:48:46,686 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:48:47,502 WARN L191 SmtUtils]: Spent 813.00 ms on a formula simplification that was a NOOP. DAG size: 1135 [2019-10-07 14:48:48,506 WARN L191 SmtUtils]: Spent 972.00 ms on a formula simplification. DAG size of input: 1137 DAG size of output: 1011 [2019-10-07 14:48:49,065 WARN L191 SmtUtils]: Spent 556.00 ms on a formula simplification that was a NOOP. DAG size: 1011 [2019-10-07 14:48:49,422 WARN L191 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:48:50,206 WARN L191 SmtUtils]: Spent 781.00 ms on a formula simplification that was a NOOP. DAG size: 1135 [2019-10-07 14:48:50,750 WARN L191 SmtUtils]: Spent 528.00 ms on a formula simplification that was a NOOP. DAG size: 1011 [2019-10-07 14:48:51,300 WARN L191 SmtUtils]: Spent 547.00 ms on a formula simplification that was a NOOP. DAG size: 1011 [2019-10-07 14:48:51,491 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:48:52,278 WARN L191 SmtUtils]: Spent 785.00 ms on a formula simplification that was a NOOP. DAG size: 1135 [2019-10-07 14:48:52,829 WARN L191 SmtUtils]: Spent 548.00 ms on a formula simplification that was a NOOP. DAG size: 1011 [2019-10-07 14:48:53,371 WARN L191 SmtUtils]: Spent 539.00 ms on a formula simplification that was a NOOP. DAG size: 1011 [2019-10-07 14:48:53,562 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:48:54,358 WARN L191 SmtUtils]: Spent 793.00 ms on a formula simplification that was a NOOP. DAG size: 1135 [2019-10-07 14:48:54,897 WARN L191 SmtUtils]: Spent 536.00 ms on a formula simplification that was a NOOP. DAG size: 1011 [2019-10-07 14:48:55,426 WARN L191 SmtUtils]: Spent 525.00 ms on a formula simplification that was a NOOP. DAG size: 1011 [2019-10-07 14:48:55,611 WARN L191 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:48:56,382 WARN L191 SmtUtils]: Spent 768.00 ms on a formula simplification that was a NOOP. DAG size: 1135 [2019-10-07 14:48:56,926 WARN L191 SmtUtils]: Spent 542.00 ms on a formula simplification that was a NOOP. DAG size: 1011 [2019-10-07 14:48:57,479 WARN L191 SmtUtils]: Spent 549.00 ms on a formula simplification that was a NOOP. DAG size: 1011 [2019-10-07 14:48:57,697 WARN L191 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:48:58,458 WARN L191 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 1135 [2019-10-07 14:48:59,005 WARN L191 SmtUtils]: Spent 544.00 ms on a formula simplification that was a NOOP. DAG size: 1011 [2019-10-07 14:48:59,550 WARN L191 SmtUtils]: Spent 541.00 ms on a formula simplification that was a NOOP. DAG size: 1011 [2019-10-07 14:48:59,740 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:49:00,523 WARN L191 SmtUtils]: Spent 781.00 ms on a formula simplification that was a NOOP. DAG size: 1135 [2019-10-07 14:49:01,052 WARN L191 SmtUtils]: Spent 526.00 ms on a formula simplification that was a NOOP. DAG size: 1011 [2019-10-07 14:49:01,613 WARN L191 SmtUtils]: Spent 557.00 ms on a formula simplification that was a NOOP. DAG size: 1011 [2019-10-07 14:49:01,797 WARN L191 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:49:02,581 WARN L191 SmtUtils]: Spent 782.00 ms on a formula simplification that was a NOOP. DAG size: 1135 [2019-10-07 14:49:03,121 WARN L191 SmtUtils]: Spent 537.00 ms on a formula simplification that was a NOOP. DAG size: 1011 [2019-10-07 14:49:03,655 WARN L191 SmtUtils]: Spent 530.00 ms on a formula simplification that was a NOOP. DAG size: 1011 [2019-10-07 14:49:03,842 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:49:04,615 WARN L191 SmtUtils]: Spent 771.00 ms on a formula simplification that was a NOOP. DAG size: 1135 [2019-10-07 14:49:05,144 WARN L191 SmtUtils]: Spent 526.00 ms on a formula simplification that was a NOOP. DAG size: 1011 [2019-10-07 14:49:05,697 WARN L191 SmtUtils]: Spent 549.00 ms on a formula simplification that was a NOOP. DAG size: 1011 [2019-10-07 14:49:05,888 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:49:06,673 WARN L191 SmtUtils]: Spent 784.00 ms on a formula simplification that was a NOOP. DAG size: 1135 [2019-10-07 14:49:07,207 WARN L191 SmtUtils]: Spent 531.00 ms on a formula simplification that was a NOOP. DAG size: 1011 [2019-10-07 14:49:07,752 WARN L191 SmtUtils]: Spent 542.00 ms on a formula simplification that was a NOOP. DAG size: 1011 [2019-10-07 14:49:07,950 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:49:08,734 WARN L191 SmtUtils]: Spent 781.00 ms on a formula simplification that was a NOOP. DAG size: 1135 [2019-10-07 14:49:09,567 WARN L191 SmtUtils]: Spent 788.00 ms on a formula simplification that was a NOOP. DAG size: 1135 [2019-10-07 14:49:10,337 WARN L191 SmtUtils]: Spent 767.00 ms on a formula simplification that was a NOOP. DAG size: 1135 [2019-10-07 14:49:10,546 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:49:11,306 WARN L191 SmtUtils]: Spent 759.00 ms on a formula simplification that was a NOOP. DAG size: 1135 [2019-10-07 14:49:12,748 WARN L191 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 1137 DAG size of output: 1135 [2019-10-07 14:49:13,527 WARN L191 SmtUtils]: Spent 775.00 ms on a formula simplification that was a NOOP. DAG size: 1135 [2019-10-07 14:49:13,767 WARN L191 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:49:14,534 WARN L191 SmtUtils]: Spent 765.00 ms on a formula simplification that was a NOOP. DAG size: 1135 [2019-10-07 14:49:15,326 WARN L191 SmtUtils]: Spent 788.00 ms on a formula simplification that was a NOOP. DAG size: 1135 [2019-10-07 14:49:16,101 WARN L191 SmtUtils]: Spent 772.00 ms on a formula simplification that was a NOOP. DAG size: 1135 [2019-10-07 14:49:16,282 WARN L191 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:49:17,086 WARN L191 SmtUtils]: Spent 802.00 ms on a formula simplification that was a NOOP. DAG size: 1135 [2019-10-07 14:49:17,895 WARN L191 SmtUtils]: Spent 773.00 ms on a formula simplification that was a NOOP. DAG size: 1137 [2019-10-07 14:49:18,687 WARN L191 SmtUtils]: Spent 789.00 ms on a formula simplification that was a NOOP. DAG size: 1137 [2019-10-07 14:49:18,880 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:49:19,671 WARN L191 SmtUtils]: Spent 789.00 ms on a formula simplification that was a NOOP. DAG size: 1139 [2019-10-07 14:49:20,475 WARN L191 SmtUtils]: Spent 784.00 ms on a formula simplification that was a NOOP. DAG size: 1139 [2019-10-07 14:49:21,248 WARN L191 SmtUtils]: Spent 769.00 ms on a formula simplification that was a NOOP. DAG size: 1139 [2019-10-07 14:49:21,441 WARN L191 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:49:22,228 WARN L191 SmtUtils]: Spent 786.00 ms on a formula simplification that was a NOOP. DAG size: 1139 [2019-10-07 14:49:23,550 WARN L191 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 1141 DAG size of output: 1137 [2019-10-07 14:49:24,310 WARN L191 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 1137 [2019-10-07 14:49:24,498 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:49:25,257 WARN L191 SmtUtils]: Spent 756.00 ms on a formula simplification that was a NOOP. DAG size: 1139 [2019-10-07 14:49:26,039 WARN L191 SmtUtils]: Spent 775.00 ms on a formula simplification that was a NOOP. DAG size: 1137 [2019-10-07 14:49:26,797 WARN L191 SmtUtils]: Spent 755.00 ms on a formula simplification that was a NOOP. DAG size: 1137 [2019-10-07 14:49:26,995 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:49:27,753 WARN L191 SmtUtils]: Spent 755.00 ms on a formula simplification that was a NOOP. DAG size: 1139 [2019-10-07 14:49:28,508 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 1139 [2019-10-07 14:49:29,289 WARN L191 SmtUtils]: Spent 777.00 ms on a formula simplification that was a NOOP. DAG size: 1139 [2019-10-07 14:49:29,484 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:49:30,263 WARN L191 SmtUtils]: Spent 776.00 ms on a formula simplification that was a NOOP. DAG size: 1141 [2019-10-07 14:49:32,233 WARN L191 SmtUtils]: Spent 1.93 s on a formula simplification. DAG size of input: 1137 DAG size of output: 1135 [2019-10-07 14:49:33,023 WARN L191 SmtUtils]: Spent 786.00 ms on a formula simplification that was a NOOP. DAG size: 1135 [2019-10-07 14:49:33,230 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:49:34,001 WARN L191 SmtUtils]: Spent 769.00 ms on a formula simplification that was a NOOP. DAG size: 1135 [2019-10-07 14:49:35,381 WARN L191 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 1137 DAG size of output: 1135 [2019-10-07 14:49:36,151 WARN L191 SmtUtils]: Spent 766.00 ms on a formula simplification that was a NOOP. DAG size: 1135 [2019-10-07 14:49:36,367 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:49:37,128 WARN L191 SmtUtils]: Spent 759.00 ms on a formula simplification that was a NOOP. DAG size: 1135 [2019-10-07 14:49:37,883 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 1135 [2019-10-07 14:49:38,652 WARN L191 SmtUtils]: Spent 766.00 ms on a formula simplification that was a NOOP. DAG size: 1135 [2019-10-07 14:49:38,837 WARN L191 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:49:39,610 WARN L191 SmtUtils]: Spent 771.00 ms on a formula simplification that was a NOOP. DAG size: 1135 [2019-10-07 14:49:41,813 WARN L191 SmtUtils]: Spent 2.16 s on a formula simplification. DAG size of input: 1137 DAG size of output: 1135 [2019-10-07 14:49:42,608 WARN L191 SmtUtils]: Spent 791.00 ms on a formula simplification that was a NOOP. DAG size: 1135 [2019-10-07 14:49:42,809 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:49:43,585 WARN L191 SmtUtils]: Spent 774.00 ms on a formula simplification that was a NOOP. DAG size: 1135 [2019-10-07 14:49:44,949 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 1137 DAG size of output: 1135 [2019-10-07 14:49:45,726 WARN L191 SmtUtils]: Spent 773.00 ms on a formula simplification that was a NOOP. DAG size: 1135 [2019-10-07 14:49:45,916 WARN L191 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:49:46,679 WARN L191 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 1135 [2019-10-07 14:49:47,446 WARN L191 SmtUtils]: Spent 763.00 ms on a formula simplification that was a NOOP. DAG size: 1135 [2019-10-07 14:49:48,201 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 1135 [2019-10-07 14:49:48,390 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-07 14:49:49,166 WARN L191 SmtUtils]: Spent 774.00 ms on a formula simplification that was a NOOP. DAG size: 1135 [2019-10-07 14:49:50,558 WARN L191 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 1141 DAG size of output: 1137 [2019-10-07 14:49:51,314 WARN L191 SmtUtils]: Spent 751.00 ms on a formula simplification that was a NOOP. DAG size: 1137 [2019-10-07 14:49:51,508 WARN L191 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:49:52,277 WARN L191 SmtUtils]: Spent 767.00 ms on a formula simplification that was a NOOP. DAG size: 1139 [2019-10-07 14:49:53,662 WARN L191 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 1141 DAG size of output: 1139 [2019-10-07 14:49:54,456 WARN L191 SmtUtils]: Spent 790.00 ms on a formula simplification that was a NOOP. DAG size: 1139 [2019-10-07 14:49:54,647 WARN L191 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:49:55,407 WARN L191 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 1139 [2019-10-07 14:49:56,793 WARN L191 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 1141 DAG size of output: 1137 [2019-10-07 14:49:57,586 WARN L191 SmtUtils]: Spent 790.00 ms on a formula simplification that was a NOOP. DAG size: 1137 [2019-10-07 14:49:57,779 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:49:58,556 WARN L191 SmtUtils]: Spent 775.00 ms on a formula simplification that was a NOOP. DAG size: 1139 [2019-10-07 14:49:59,875 WARN L191 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 1146 DAG size of output: 1139 [2019-10-07 14:50:00,641 WARN L191 SmtUtils]: Spent 763.00 ms on a formula simplification that was a NOOP. DAG size: 1139 [2019-10-07 14:50:00,856 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:50:01,612 WARN L191 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 1139 [2019-10-07 14:50:03,017 WARN L191 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 1148 DAG size of output: 1141 [2019-10-07 14:50:03,790 WARN L191 SmtUtils]: Spent 769.00 ms on a formula simplification that was a NOOP. DAG size: 1141 [2019-10-07 14:50:03,980 WARN L191 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-07 14:50:04,737 WARN L191 SmtUtils]: Spent 755.00 ms on a formula simplification that was a NOOP. DAG size: 1141 [2019-10-07 14:50:05,001 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:50:05,003 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:133) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.lib.sifa.PriorityWorklist.add(PriorityWorklist.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.lambda$2(DagInterpreter.java:135) at java.lang.Iterable.forEach(Iterable.java:75) at java.util.Collections$UnmodifiableCollection.forEach(Collections.java:1080) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:135) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:139) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:287) ... 21 more [2019-10-07 14:50:05,010 INFO L168 Benchmark]: Toolchain (without parser) took 148639.19 ms. Allocated memory was 136.3 MB in the beginning and 772.3 MB in the end (delta: 636.0 MB). Free memory was 98.6 MB in the beginning and 147.4 MB in the end (delta: -48.8 MB). Peak memory consumption was 587.2 MB. Max. memory is 7.1 GB. [2019-10-07 14:50:05,010 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 136.3 MB. Free memory was 119.5 MB in the beginning and 119.3 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-10-07 14:50:05,011 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1065.28 ms. Allocated memory was 136.3 MB in the beginning and 200.8 MB in the end (delta: 64.5 MB). Free memory was 98.2 MB in the beginning and 139.0 MB in the end (delta: -40.8 MB). Peak memory consumption was 31.5 MB. Max. memory is 7.1 GB. [2019-10-07 14:50:05,016 INFO L168 Benchmark]: Boogie Preprocessor took 178.79 ms. Allocated memory is still 200.8 MB. Free memory was 139.0 MB in the beginning and 130.1 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.8 MB. Max. memory is 7.1 GB. [2019-10-07 14:50:05,016 INFO L168 Benchmark]: RCFGBuilder took 4765.00 ms. Allocated memory was 200.8 MB in the beginning and 313.0 MB in the end (delta: 112.2 MB). Free memory was 130.1 MB in the beginning and 142.4 MB in the end (delta: -12.3 MB). Peak memory consumption was 110.2 MB. Max. memory is 7.1 GB. [2019-10-07 14:50:05,020 INFO L168 Benchmark]: TraceAbstraction took 142625.79 ms. Allocated memory was 313.0 MB in the beginning and 772.3 MB in the end (delta: 459.3 MB). Free memory was 142.4 MB in the beginning and 147.4 MB in the end (delta: -5.0 MB). Peak memory consumption was 454.3 MB. Max. memory is 7.1 GB. [2019-10-07 14:50:05,023 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 136.3 MB. Free memory was 119.5 MB in the beginning and 119.3 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1065.28 ms. Allocated memory was 136.3 MB in the beginning and 200.8 MB in the end (delta: 64.5 MB). Free memory was 98.2 MB in the beginning and 139.0 MB in the end (delta: -40.8 MB). Peak memory consumption was 31.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 178.79 ms. Allocated memory is still 200.8 MB. Free memory was 139.0 MB in the beginning and 130.1 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4765.00 ms. Allocated memory was 200.8 MB in the beginning and 313.0 MB in the end (delta: 112.2 MB). Free memory was 130.1 MB in the beginning and 142.4 MB in the end (delta: -12.3 MB). Peak memory consumption was 110.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 142625.79 ms. Allocated memory was 313.0 MB in the beginning and 772.3 MB in the end (delta: 459.3 MB). Free memory was 142.4 MB in the beginning and 147.4 MB in the end (delta: -5.0 MB). Peak memory consumption was 454.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...