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_spec6_product12.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 14:59:53,723 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 14:59:53,726 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 14:59:53,744 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 14:59:53,744 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 14:59:53,747 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 14:59:53,749 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 14:59:53,761 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 14:59:53,763 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 14:59:53,766 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 14:59:53,767 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 14:59:53,768 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 14:59:53,769 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 14:59:53,770 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 14:59:53,771 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 14:59:53,772 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 14:59:53,773 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 14:59:53,774 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 14:59:53,776 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 14:59:53,777 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 14:59:53,779 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 14:59:53,780 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 14:59:53,781 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 14:59:53,781 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 14:59:53,783 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 14:59:53,784 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 14:59:53,784 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 14:59:53,785 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 14:59:53,785 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 14:59:53,786 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 14:59:53,786 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 14:59:53,787 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 14:59:53,788 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 14:59:53,789 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 14:59:53,790 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 14:59:53,790 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 14:59:53,790 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 14:59:53,791 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 14:59:53,791 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 14:59:53,792 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 14:59:53,792 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 14:59:53,793 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 14:59:53,807 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 14:59:53,807 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 14:59:53,809 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 14:59:53,809 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 14:59:53,809 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 14:59:53,809 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 14:59:53,809 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 14:59:53,810 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 14:59:53,810 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 14:59:53,810 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 14:59:53,810 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 14:59:53,810 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 14:59:53,811 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 14:59:53,811 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 14:59:53,811 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 14:59:53,811 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 14:59:53,811 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 14:59:53,812 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 14:59:53,812 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 14:59:53,812 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 14:59:53,812 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 14:59:53,812 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:59:53,813 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 14:59:53,813 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 14:59:53,813 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 14:59:53,813 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 14:59:53,813 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 14:59:53,814 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 14:59:53,814 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 14:59:54,117 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 14:59:54,130 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 14:59:54,134 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 14:59:54,136 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 14:59:54,136 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 14:59:54,137 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec6_product12.cil.c [2019-10-07 14:59:54,200 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e49315bbf/621265d961cd48f8bac72ff39886ac82/FLAG1d7c391a5 [2019-10-07 14:59:54,823 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 14:59:54,825 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec6_product12.cil.c [2019-10-07 14:59:54,858 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e49315bbf/621265d961cd48f8bac72ff39886ac82/FLAG1d7c391a5 [2019-10-07 14:59:55,012 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e49315bbf/621265d961cd48f8bac72ff39886ac82 [2019-10-07 14:59:55,020 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 14:59:55,022 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 14:59:55,023 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 14:59:55,023 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 14:59:55,026 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 14:59:55,027 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:59:55" (1/1) ... [2019-10-07 14:59:55,030 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67af7f57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:59:55, skipping insertion in model container [2019-10-07 14:59:55,031 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:59:55" (1/1) ... [2019-10-07 14:59:55,038 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 14:59:55,122 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 14:59:55,813 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:59:55,842 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 14:59:56,020 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:59:56,117 INFO L192 MainTranslator]: Completed translation [2019-10-07 14:59:56,118 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:59:56 WrapperNode [2019-10-07 14:59:56,118 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 14:59:56,119 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 14:59:56,119 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 14:59:56,119 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 14:59:56,138 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:59:56" (1/1) ... [2019-10-07 14:59:56,139 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:59:56" (1/1) ... [2019-10-07 14:59:56,170 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:59:56" (1/1) ... [2019-10-07 14:59:56,170 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:59:56" (1/1) ... [2019-10-07 14:59:56,267 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:59:56" (1/1) ... [2019-10-07 14:59:56,311 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:59:56" (1/1) ... [2019-10-07 14:59:56,333 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:59:56" (1/1) ... [2019-10-07 14:59:56,351 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 14:59:56,352 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 14:59:56,352 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 14:59:56,352 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 14:59:56,356 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:59:56" (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 14:59:56,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 14:59:56,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 14:59:56,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 14:59:56,420 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 14:59:56,420 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 14:59:56,420 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 14:59:56,420 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 14:59:56,421 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-07 14:59:56,421 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-07 14:59:56,421 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-07 14:59:56,421 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-07 14:59:56,422 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-07 14:59:56,422 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-07 14:59:56,422 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 14:59:56,422 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 14:59:56,423 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 14:59:56,423 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 14:59:56,423 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 14:59:56,423 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 14:59:56,423 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-07 14:59:56,424 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-07 14:59:56,424 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-07 14:59:56,424 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-07 14:59:56,425 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-07 14:59:56,425 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-07 14:59:56,425 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-07 14:59:56,425 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-07 14:59:56,426 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 14:59:56,426 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 14:59:56,426 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-07 14:59:56,426 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-07 14:59:56,426 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-07 14:59:56,426 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-07 14:59:56,427 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-07 14:59:56,427 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-07 14:59:56,427 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-07 14:59:56,427 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-07 14:59:56,427 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-07 14:59:56,428 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-07 14:59:56,428 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-07 14:59:56,428 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-07 14:59:56,428 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-07 14:59:56,428 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-07 14:59:56,429 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-07 14:59:56,429 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-07 14:59:56,429 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-07 14:59:56,429 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-07 14:59:56,429 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-07 14:59:56,430 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-07 14:59:56,430 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-07 14:59:56,430 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-07 14:59:56,430 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-07 14:59:56,430 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-07 14:59:56,430 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-07 14:59:56,431 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-07 14:59:56,431 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-07 14:59:56,431 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-07 14:59:56,431 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-07 14:59:56,431 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-07 14:59:56,432 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-07 14:59:56,432 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-07 14:59:56,432 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-07 14:59:56,432 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-07 14:59:56,432 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-07 14:59:56,433 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-07 14:59:56,433 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-07 14:59:56,433 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-07 14:59:56,433 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-07 14:59:56,433 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-07 14:59:56,434 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-07 14:59:56,434 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-07 14:59:56,434 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-07 14:59:56,434 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-07 14:59:56,434 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-07 14:59:56,435 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-07 14:59:56,435 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-07 14:59:56,435 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-07 14:59:56,435 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-07 14:59:56,435 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-07 14:59:56,436 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-07 14:59:56,436 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-07 14:59:56,436 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-07 14:59:56,436 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-07 14:59:56,436 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-07 14:59:56,437 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-07 14:59:56,437 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-07 14:59:56,437 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-07 14:59:56,437 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-07 14:59:56,437 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 14:59:56,438 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-07 14:59:56,438 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-07 14:59:56,438 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-07 14:59:56,438 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-07 14:59:56,438 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-07 14:59:56,438 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-07 14:59:56,439 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-07 14:59:56,439 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-07 14:59:56,439 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-07 14:59:56,439 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-07 14:59:56,439 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-07 14:59:56,440 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-07 14:59:56,440 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-07 14:59:56,440 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-07 14:59:56,440 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-07 14:59:56,440 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-07 14:59:56,440 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-07 14:59:56,441 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 14:59:56,441 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 14:59:56,441 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 14:59:56,441 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 14:59:56,441 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 14:59:56,442 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 14:59:56,442 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 14:59:56,442 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 14:59:56,442 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-07 14:59:56,442 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-07 14:59:56,443 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-07 14:59:56,443 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-07 14:59:56,443 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-07 14:59:56,443 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-07 14:59:56,443 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-07 14:59:56,443 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-07 14:59:56,444 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-07 14:59:56,444 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-07 14:59:56,444 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-07 14:59:56,444 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-07 14:59:56,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 14:59:56,445 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-07 14:59:56,445 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 14:59:56,445 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 14:59:56,445 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 14:59:56,445 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 14:59:56,446 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 14:59:56,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 14:59:56,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 14:59:56,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 14:59:56,446 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 14:59:56,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 14:59:56,447 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 14:59:56,447 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 14:59:56,447 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 14:59:56,447 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 14:59:56,447 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 14:59:56,448 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 14:59:56,448 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-07 14:59:56,448 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-07 14:59:56,448 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-07 14:59:56,448 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-07 14:59:56,449 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-07 14:59:56,449 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-07 14:59:56,449 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-07 14:59:56,449 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-07 14:59:56,449 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-07 14:59:56,450 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-07 14:59:56,450 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-07 14:59:56,450 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-07 14:59:56,450 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-07 14:59:56,450 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-07 14:59:56,450 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-07 14:59:56,450 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-07 14:59:56,451 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-07 14:59:56,451 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-07 14:59:56,451 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-07 14:59:56,451 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 14:59:56,451 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 14:59:56,451 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 14:59:56,451 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-07 14:59:56,452 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-07 14:59:56,452 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-07 14:59:56,452 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-07 14:59:56,452 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-07 14:59:56,452 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-07 14:59:56,452 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-07 14:59:56,452 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-07 14:59:56,453 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-07 14:59:56,453 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-07 14:59:56,453 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-07 14:59:56,453 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-07 14:59:56,453 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-07 14:59:56,453 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-07 14:59:56,453 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-07 14:59:56,453 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-07 14:59:56,454 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-07 14:59:56,454 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-07 14:59:56,454 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-07 14:59:56,454 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-07 14:59:56,454 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-07 14:59:56,454 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-07 14:59:56,454 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-07 14:59:56,455 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-07 14:59:56,455 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-07 14:59:56,455 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-07 14:59:56,455 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-07 14:59:56,455 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-07 14:59:56,455 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-07 14:59:56,455 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-07 14:59:56,456 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-07 14:59:56,456 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-07 14:59:56,456 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-07 14:59:56,456 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-07 14:59:56,456 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-07 14:59:56,456 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-07 14:59:56,456 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-07 14:59:56,456 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-07 14:59:56,457 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-07 14:59:56,457 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-07 14:59:56,457 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-07 14:59:56,457 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-07 14:59:56,457 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-07 14:59:56,457 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-07 14:59:56,458 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-07 14:59:56,458 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-07 14:59:56,458 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-07 14:59:56,458 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-07 14:59:56,458 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 14:59:56,458 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-07 14:59:56,458 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-07 14:59:56,459 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-07 14:59:56,459 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-07 14:59:56,459 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-07 14:59:56,459 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-07 14:59:56,459 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-07 14:59:56,459 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-07 14:59:56,459 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-07 14:59:56,460 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-07 14:59:56,460 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-07 14:59:56,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 14:59:56,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 14:59:56,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 15:00:00,917 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 15:00:00,917 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-07 15:00:00,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:00:00 BoogieIcfgContainer [2019-10-07 15:00:00,919 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 15:00:00,920 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 15:00:00,920 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 15:00:00,924 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 15:00:00,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 02:59:55" (1/3) ... [2019-10-07 15:00:00,925 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e6f2a00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:00:00, skipping insertion in model container [2019-10-07 15:00:00,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:59:56" (2/3) ... [2019-10-07 15:00:00,925 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e6f2a00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:00:00, skipping insertion in model container [2019-10-07 15:00:00,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:00:00" (3/3) ... [2019-10-07 15:00:00,927 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec6_product12.cil.c [2019-10-07 15:00:00,937 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 15:00:00,946 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 15:00:00,957 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 15:00:00,987 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 15:00:00,987 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 15:00:00,987 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 15:00:00,987 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 15:00:00,987 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 15:00:00,988 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 15:00:00,988 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 15:00:00,988 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 15:00:01,014 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states. [2019-10-07 15:00:01,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2019-10-07 15:00:01,032 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:00:01,033 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] [2019-10-07 15:00:01,035 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:00:01,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:00:01,042 INFO L82 PathProgramCache]: Analyzing trace with hash -73053180, now seen corresponding path program 1 times [2019-10-07 15:00:01,051 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:00:01,051 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:01,052 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:01,052 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:01,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:00:01,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:00:01,811 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 15:00:01,812 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:01,812 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:00:01,813 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 15:00:01,820 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 15:00:01,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 15:00:01,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 15:00:01,850 INFO L87 Difference]: Start difference. First operand 318 states. Second operand 2 states. [2019-10-07 15:00:01,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:00:01,911 INFO L93 Difference]: Finished difference Result 413 states and 495 transitions. [2019-10-07 15:00:01,911 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 15:00:01,912 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 136 [2019-10-07 15:00:01,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:00:01,931 INFO L225 Difference]: With dead ends: 413 [2019-10-07 15:00:01,931 INFO L226 Difference]: Without dead ends: 278 [2019-10-07 15:00:01,941 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 15:00:01,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2019-10-07 15:00:02,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2019-10-07 15:00:02,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2019-10-07 15:00:02,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 332 transitions. [2019-10-07 15:00:02,059 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 332 transitions. Word has length 136 [2019-10-07 15:00:02,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:00:02,061 INFO L462 AbstractCegarLoop]: Abstraction has 278 states and 332 transitions. [2019-10-07 15:00:02,061 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 15:00:02,062 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 332 transitions. [2019-10-07 15:00:02,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2019-10-07 15:00:02,067 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:00:02,067 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] [2019-10-07 15:00:02,068 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:00:02,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:00:02,068 INFO L82 PathProgramCache]: Analyzing trace with hash -1729470688, now seen corresponding path program 1 times [2019-10-07 15:00:02,068 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:00:02,068 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:02,069 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:02,069 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:02,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:00:02,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:00:02,316 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 15:00:02,317 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:02,317 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:00:02,317 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:00:02,319 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:00:02,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:00:02,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:00:02,320 INFO L87 Difference]: Start difference. First operand 278 states and 332 transitions. Second operand 3 states. [2019-10-07 15:00:02,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:00:02,391 INFO L93 Difference]: Finished difference Result 398 states and 466 transitions. [2019-10-07 15:00:02,391 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:00:02,391 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 137 [2019-10-07 15:00:02,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:00:02,400 INFO L225 Difference]: With dead ends: 398 [2019-10-07 15:00:02,401 INFO L226 Difference]: Without dead ends: 280 [2019-10-07 15:00:02,403 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 15:00:02,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2019-10-07 15:00:02,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 280. [2019-10-07 15:00:02,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2019-10-07 15:00:02,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 334 transitions. [2019-10-07 15:00:02,428 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 334 transitions. Word has length 137 [2019-10-07 15:00:02,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:00:02,429 INFO L462 AbstractCegarLoop]: Abstraction has 280 states and 334 transitions. [2019-10-07 15:00:02,429 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:00:02,429 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 334 transitions. [2019-10-07 15:00:02,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2019-10-07 15:00:02,434 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:00:02,434 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:00:02,434 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:00:02,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:00:02,435 INFO L82 PathProgramCache]: Analyzing trace with hash 729914396, now seen corresponding path program 1 times [2019-10-07 15:00:02,435 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:00:02,435 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:02,435 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:02,435 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:02,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:00:02,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:00:02,589 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 15:00:02,589 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:02,589 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:00:02,589 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:00:02,590 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:00:02,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:00:02,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:00:02,591 INFO L87 Difference]: Start difference. First operand 280 states and 334 transitions. Second operand 3 states. [2019-10-07 15:00:02,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:00:02,634 INFO L93 Difference]: Finished difference Result 540 states and 672 transitions. [2019-10-07 15:00:02,634 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:00:02,635 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2019-10-07 15:00:02,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:00:02,638 INFO L225 Difference]: With dead ends: 540 [2019-10-07 15:00:02,638 INFO L226 Difference]: Without dead ends: 318 [2019-10-07 15:00:02,640 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 15:00:02,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2019-10-07 15:00:02,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 317. [2019-10-07 15:00:02,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 317 states. [2019-10-07 15:00:02,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 399 transitions. [2019-10-07 15:00:02,665 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 399 transitions. Word has length 142 [2019-10-07 15:00:02,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:00:02,666 INFO L462 AbstractCegarLoop]: Abstraction has 317 states and 399 transitions. [2019-10-07 15:00:02,666 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:00:02,666 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 399 transitions. [2019-10-07 15:00:02,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2019-10-07 15:00:02,670 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:00:02,673 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:00:02,673 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:00:02,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:00:02,674 INFO L82 PathProgramCache]: Analyzing trace with hash 134138767, now seen corresponding path program 1 times [2019-10-07 15:00:02,674 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:00:02,674 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:02,674 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:02,674 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:02,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:00:02,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:00:03,425 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 15:00:03,426 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:03,426 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:00:03,426 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2019-10-07 15:00:03,428 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-10-07 15:00:03,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-10-07 15:00:03,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=408, Unknown=0, NotChecked=0, Total=462 [2019-10-07 15:00:03,431 INFO L87 Difference]: Start difference. First operand 317 states and 399 transitions. Second operand 22 states. [2019-10-07 15:00:08,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:00:08,928 INFO L93 Difference]: Finished difference Result 678 states and 822 transitions. [2019-10-07 15:00:08,929 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2019-10-07 15:00:08,929 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 143 [2019-10-07 15:00:08,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:00:08,934 INFO L225 Difference]: With dead ends: 678 [2019-10-07 15:00:08,935 INFO L226 Difference]: Without dead ends: 536 [2019-10-07 15:00:08,937 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 410 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=233, Invalid=1929, Unknown=0, NotChecked=0, Total=2162 [2019-10-07 15:00:08,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2019-10-07 15:00:08,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 527. [2019-10-07 15:00:08,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 527 states. [2019-10-07 15:00:08,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 633 transitions. [2019-10-07 15:00:08,980 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 633 transitions. Word has length 143 [2019-10-07 15:00:08,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:00:08,981 INFO L462 AbstractCegarLoop]: Abstraction has 527 states and 633 transitions. [2019-10-07 15:00:08,981 INFO L463 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-10-07 15:00:08,981 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 633 transitions. [2019-10-07 15:00:08,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2019-10-07 15:00:08,985 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:00:08,985 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:00:08,986 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:00:08,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:00:08,986 INFO L82 PathProgramCache]: Analyzing trace with hash 750693262, now seen corresponding path program 1 times [2019-10-07 15:00:08,986 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:00:08,986 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:08,987 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:08,987 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:08,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:00:09,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:00:09,301 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 15:00:09,302 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:09,302 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:00:09,302 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-07 15:00:09,303 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-07 15:00:09,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-07 15:00:09,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2019-10-07 15:00:09,304 INFO L87 Difference]: Start difference. First operand 527 states and 633 transitions. Second operand 12 states. [2019-10-07 15:00:11,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:00:11,634 INFO L93 Difference]: Finished difference Result 1101 states and 1297 transitions. [2019-10-07 15:00:11,636 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-07 15:00:11,636 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 149 [2019-10-07 15:00:11,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:00:11,649 INFO L225 Difference]: With dead ends: 1101 [2019-10-07 15:00:11,649 INFO L226 Difference]: Without dead ends: 847 [2019-10-07 15:00:11,651 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=363, Unknown=0, NotChecked=0, Total=462 [2019-10-07 15:00:11,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 847 states. [2019-10-07 15:00:11,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 847 to 777. [2019-10-07 15:00:11,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 777 states. [2019-10-07 15:00:11,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 777 states to 777 states and 923 transitions. [2019-10-07 15:00:11,735 INFO L78 Accepts]: Start accepts. Automaton has 777 states and 923 transitions. Word has length 149 [2019-10-07 15:00:11,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:00:11,736 INFO L462 AbstractCegarLoop]: Abstraction has 777 states and 923 transitions. [2019-10-07 15:00:11,736 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-07 15:00:11,736 INFO L276 IsEmpty]: Start isEmpty. Operand 777 states and 923 transitions. [2019-10-07 15:00:11,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2019-10-07 15:00:11,740 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:00:11,740 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:00:11,740 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:00:11,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:00:11,741 INFO L82 PathProgramCache]: Analyzing trace with hash -1988398848, now seen corresponding path program 1 times [2019-10-07 15:00:11,741 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:00:11,741 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:11,741 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:11,742 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:11,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:00:11,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:00:11,882 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 15:00:11,882 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:11,883 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:00:11,883 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:00:11,883 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:00:11,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:00:11,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:00:11,884 INFO L87 Difference]: Start difference. First operand 777 states and 923 transitions. Second operand 3 states. [2019-10-07 15:00:11,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:00:11,941 INFO L93 Difference]: Finished difference Result 1602 states and 1970 transitions. [2019-10-07 15:00:11,941 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:00:11,941 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 171 [2019-10-07 15:00:11,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:00:11,947 INFO L225 Difference]: With dead ends: 1602 [2019-10-07 15:00:11,947 INFO L226 Difference]: Without dead ends: 883 [2019-10-07 15:00:11,950 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 15:00:11,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2019-10-07 15:00:12,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 881. [2019-10-07 15:00:12,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 881 states. [2019-10-07 15:00:12,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 881 states to 881 states and 1105 transitions. [2019-10-07 15:00:12,006 INFO L78 Accepts]: Start accepts. Automaton has 881 states and 1105 transitions. Word has length 171 [2019-10-07 15:00:12,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:00:12,007 INFO L462 AbstractCegarLoop]: Abstraction has 881 states and 1105 transitions. [2019-10-07 15:00:12,007 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:00:12,007 INFO L276 IsEmpty]: Start isEmpty. Operand 881 states and 1105 transitions. [2019-10-07 15:00:12,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2019-10-07 15:00:12,011 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:00:12,011 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:00:12,012 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:00:12,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:00:12,012 INFO L82 PathProgramCache]: Analyzing trace with hash 212021453, now seen corresponding path program 1 times [2019-10-07 15:00:12,012 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:00:12,012 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:12,013 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:12,013 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:12,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:00:12,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:00:12,146 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 15:00:12,146 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:12,147 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:00:12,147 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:00:12,147 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:00:12,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:00:12,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:00:12,148 INFO L87 Difference]: Start difference. First operand 881 states and 1105 transitions. Second operand 3 states. [2019-10-07 15:00:12,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:00:12,274 INFO L93 Difference]: Finished difference Result 1899 states and 2492 transitions. [2019-10-07 15:00:12,274 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:00:12,274 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 172 [2019-10-07 15:00:12,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:00:12,281 INFO L225 Difference]: With dead ends: 1899 [2019-10-07 15:00:12,281 INFO L226 Difference]: Without dead ends: 1076 [2019-10-07 15:00:12,284 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 15:00:12,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1076 states. [2019-10-07 15:00:12,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1076 to 1074. [2019-10-07 15:00:12,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1074 states. [2019-10-07 15:00:12,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1074 states to 1074 states and 1442 transitions. [2019-10-07 15:00:12,351 INFO L78 Accepts]: Start accepts. Automaton has 1074 states and 1442 transitions. Word has length 172 [2019-10-07 15:00:12,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:00:12,352 INFO L462 AbstractCegarLoop]: Abstraction has 1074 states and 1442 transitions. [2019-10-07 15:00:12,352 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:00:12,352 INFO L276 IsEmpty]: Start isEmpty. Operand 1074 states and 1442 transitions. [2019-10-07 15:00:12,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2019-10-07 15:00:12,357 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:00:12,357 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:00:12,358 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:00:12,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:00:12,358 INFO L82 PathProgramCache]: Analyzing trace with hash 1997364994, now seen corresponding path program 1 times [2019-10-07 15:00:12,358 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:00:12,358 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:12,359 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:12,359 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:12,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:00:12,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:00:12,667 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 15:00:12,667 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:12,668 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:00:12,668 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-07 15:00:12,669 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-07 15:00:12,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-07 15:00:12,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2019-10-07 15:00:12,669 INFO L87 Difference]: Start difference. First operand 1074 states and 1442 transitions. Second operand 12 states. [2019-10-07 15:00:15,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:00:15,796 INFO L93 Difference]: Finished difference Result 2463 states and 3428 transitions. [2019-10-07 15:00:15,797 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-10-07 15:00:15,797 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 173 [2019-10-07 15:00:15,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:00:15,812 INFO L225 Difference]: With dead ends: 2463 [2019-10-07 15:00:15,812 INFO L226 Difference]: Without dead ends: 1778 [2019-10-07 15:00:15,816 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=170, Invalid=586, Unknown=0, NotChecked=0, Total=756 [2019-10-07 15:00:15,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1778 states. [2019-10-07 15:00:15,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1778 to 1447. [2019-10-07 15:00:15,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1447 states. [2019-10-07 15:00:15,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1447 states to 1447 states and 2107 transitions. [2019-10-07 15:00:15,943 INFO L78 Accepts]: Start accepts. Automaton has 1447 states and 2107 transitions. Word has length 173 [2019-10-07 15:00:15,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:00:15,944 INFO L462 AbstractCegarLoop]: Abstraction has 1447 states and 2107 transitions. [2019-10-07 15:00:15,945 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-07 15:00:15,945 INFO L276 IsEmpty]: Start isEmpty. Operand 1447 states and 2107 transitions. [2019-10-07 15:00:15,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2019-10-07 15:00:15,956 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:00:15,957 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:00:15,957 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:00:15,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:00:15,958 INFO L82 PathProgramCache]: Analyzing trace with hash -1905112598, now seen corresponding path program 1 times [2019-10-07 15:00:15,958 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:00:15,958 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:15,959 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:15,959 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:15,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:00:16,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:00:16,226 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-10-07 15:00:16,227 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:16,227 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:00:16,227 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:00:16,228 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:00:16,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:00:16,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:00:16,229 INFO L87 Difference]: Start difference. First operand 1447 states and 2107 transitions. Second operand 3 states. [2019-10-07 15:00:16,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:00:16,330 INFO L93 Difference]: Finished difference Result 3101 states and 4646 transitions. [2019-10-07 15:00:16,331 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:00:16,331 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 179 [2019-10-07 15:00:16,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:00:16,344 INFO L225 Difference]: With dead ends: 3101 [2019-10-07 15:00:16,344 INFO L226 Difference]: Without dead ends: 1716 [2019-10-07 15:00:16,350 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 15:00:16,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1716 states. [2019-10-07 15:00:16,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1716 to 1715. [2019-10-07 15:00:16,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1715 states. [2019-10-07 15:00:16,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1715 states to 1715 states and 2583 transitions. [2019-10-07 15:00:16,485 INFO L78 Accepts]: Start accepts. Automaton has 1715 states and 2583 transitions. Word has length 179 [2019-10-07 15:00:16,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:00:16,486 INFO L462 AbstractCegarLoop]: Abstraction has 1715 states and 2583 transitions. [2019-10-07 15:00:16,486 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:00:16,486 INFO L276 IsEmpty]: Start isEmpty. Operand 1715 states and 2583 transitions. [2019-10-07 15:00:16,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2019-10-07 15:00:16,495 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:00:16,495 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:00:16,496 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:00:16,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:00:16,496 INFO L82 PathProgramCache]: Analyzing trace with hash -463742468, now seen corresponding path program 1 times [2019-10-07 15:00:16,496 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:00:16,497 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:16,497 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:16,497 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:16,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:00:16,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:00:16,792 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 15:00:16,792 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:16,792 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:00:16,793 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-07 15:00:16,794 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-07 15:00:16,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-07 15:00:16,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2019-10-07 15:00:16,795 INFO L87 Difference]: Start difference. First operand 1715 states and 2583 transitions. Second operand 12 states. [2019-10-07 15:00:20,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:00:20,396 INFO L93 Difference]: Finished difference Result 3223 states and 4774 transitions. [2019-10-07 15:00:20,397 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-10-07 15:00:20,397 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 182 [2019-10-07 15:00:20,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:00:20,413 INFO L225 Difference]: With dead ends: 3223 [2019-10-07 15:00:20,413 INFO L226 Difference]: Without dead ends: 1901 [2019-10-07 15:00:20,419 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=167, Invalid=589, Unknown=0, NotChecked=0, Total=756 [2019-10-07 15:00:20,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1901 states. [2019-10-07 15:00:20,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1901 to 1570. [2019-10-07 15:00:20,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1570 states. [2019-10-07 15:00:20,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1570 states to 1570 states and 2314 transitions. [2019-10-07 15:00:20,536 INFO L78 Accepts]: Start accepts. Automaton has 1570 states and 2314 transitions. Word has length 182 [2019-10-07 15:00:20,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:00:20,536 INFO L462 AbstractCegarLoop]: Abstraction has 1570 states and 2314 transitions. [2019-10-07 15:00:20,536 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-07 15:00:20,537 INFO L276 IsEmpty]: Start isEmpty. Operand 1570 states and 2314 transitions. [2019-10-07 15:00:20,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2019-10-07 15:00:20,552 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:00:20,552 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:00:20,552 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:00:20,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:00:20,553 INFO L82 PathProgramCache]: Analyzing trace with hash 2035575386, now seen corresponding path program 1 times [2019-10-07 15:00:20,553 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:00:20,553 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:20,553 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:20,554 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:00:20,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:00:20,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:00:21,557 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 15:00:21,558 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:00:21,558 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 15:00:21,558 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 15:00:22,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:00:22,059 INFO L256 TraceCheckSpWp]: Trace formula consists of 2571 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-07 15:00:22,084 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 15:00:22,287 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 15:00:22,288 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 15:00:22,588 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 15:00:22,589 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 15:00:22,618 INFO L162 IcfgInterpreter]: Started Sifa with 164 locations of interest [2019-10-07 15:00:22,618 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 15:00:22,625 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 15:00:22,633 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 15:00:22,634 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 15:01:06,315 WARN L191 SmtUtils]: Spent 395.00 ms on a formula simplification that was a NOOP. DAG size: 666 [2019-10-07 15:01:10,010 WARN L191 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 296 DAG size of output: 241 [2019-10-07 15:01:10,361 WARN L191 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 703 [2019-10-07 15:01:10,762 WARN L191 SmtUtils]: Spent 389.00 ms on a formula simplification that was a NOOP. DAG size: 703 [2019-10-07 15:01:11,004 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 703 [2019-10-07 15:01:11,166 WARN L191 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 15:01:11,782 WARN L191 SmtUtils]: Spent 614.00 ms on a formula simplification that was a NOOP. DAG size: 998 [2019-10-07 15:01:12,390 WARN L191 SmtUtils]: Spent 588.00 ms on a formula simplification that was a NOOP. DAG size: 998 [2019-10-07 15:01:13,036 WARN L191 SmtUtils]: Spent 643.00 ms on a formula simplification that was a NOOP. DAG size: 998 [2019-10-07 15:01:13,211 WARN L191 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 15:01:13,829 WARN L191 SmtUtils]: Spent 617.00 ms on a formula simplification that was a NOOP. DAG size: 998 [2019-10-07 15:01:15,001 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 1000 DAG size of output: 998 [2019-10-07 15:01:15,613 WARN L191 SmtUtils]: Spent 608.00 ms on a formula simplification that was a NOOP. DAG size: 998 [2019-10-07 15:01:15,751 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 15:01:16,334 WARN L191 SmtUtils]: Spent 582.00 ms on a formula simplification that was a NOOP. DAG size: 998 [2019-10-07 15:01:16,954 WARN L191 SmtUtils]: Spent 617.00 ms on a formula simplification that was a NOOP. DAG size: 998 [2019-10-07 15:01:17,522 WARN L191 SmtUtils]: Spent 564.00 ms on a formula simplification that was a NOOP. DAG size: 998 [2019-10-07 15:01:17,677 WARN L191 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 15:01:18,251 WARN L191 SmtUtils]: Spent 573.00 ms on a formula simplification that was a NOOP. DAG size: 998 [2019-10-07 15:01:18,274 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 550 for LOIs [2019-10-07 15:01:18,553 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 634 [2019-10-07 15:01:18,775 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 15:01:19,264 WARN L191 SmtUtils]: Spent 486.00 ms on a formula simplification that was a NOOP. DAG size: 929 [2019-10-07 15:01:19,265 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1025 for LOIs [2019-10-07 15:01:19,819 WARN L191 SmtUtils]: Spent 552.00 ms on a formula simplification that was a NOOP. DAG size: 1025 [2019-10-07 15:01:20,409 WARN L191 SmtUtils]: Spent 586.00 ms on a formula simplification that was a NOOP. DAG size: 1025 [2019-10-07 15:01:20,704 WARN L191 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 545 [2019-10-07 15:01:21,464 WARN L191 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 15:01:22,113 WARN L191 SmtUtils]: Spent 635.00 ms on a formula simplification that was a NOOP. DAG size: 1025 [2019-10-07 15:01:22,696 WARN L191 SmtUtils]: Spent 579.00 ms on a formula simplification that was a NOOP. DAG size: 1025 [2019-10-07 15:01:22,879 WARN L191 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 545 [2019-10-07 15:01:23,686 WARN L191 SmtUtils]: Spent 805.00 ms on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 15:01:24,307 WARN L191 SmtUtils]: Spent 591.00 ms on a formula simplification that was a NOOP. DAG size: 1025 [2019-10-07 15:01:24,924 WARN L191 SmtUtils]: Spent 613.00 ms on a formula simplification that was a NOOP. DAG size: 1025 [2019-10-07 15:01:25,106 WARN L191 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 545 [2019-10-07 15:01:25,883 WARN L191 SmtUtils]: Spent 774.00 ms on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 15:01:26,973 WARN L191 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 1132 DAG size of output: 1025 [2019-10-07 15:01:27,546 WARN L191 SmtUtils]: Spent 569.00 ms on a formula simplification that was a NOOP. DAG size: 1025 [2019-10-07 15:01:27,782 WARN L191 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 545 [2019-10-07 15:01:28,565 WARN L191 SmtUtils]: Spent 781.00 ms on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 15:01:29,143 WARN L191 SmtUtils]: Spent 562.00 ms on a formula simplification that was a NOOP. DAG size: 1025 [2019-10-07 15:01:29,718 WARN L191 SmtUtils]: Spent 572.00 ms on a formula simplification that was a NOOP. DAG size: 1025 [2019-10-07 15:01:29,900 WARN L191 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 545 [2019-10-07 15:01:30,666 WARN L191 SmtUtils]: Spent 764.00 ms on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 15:01:31,229 WARN L191 SmtUtils]: Spent 560.00 ms on a formula simplification that was a NOOP. DAG size: 1025 [2019-10-07 15:01:31,814 WARN L191 SmtUtils]: Spent 581.00 ms on a formula simplification that was a NOOP. DAG size: 1025 [2019-10-07 15:01:31,990 WARN L191 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 545 [2019-10-07 15:01:32,755 WARN L191 SmtUtils]: Spent 763.00 ms on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 15:01:33,325 WARN L191 SmtUtils]: Spent 567.00 ms on a formula simplification that was a NOOP. DAG size: 1025 [2019-10-07 15:01:33,889 WARN L191 SmtUtils]: Spent 560.00 ms on a formula simplification that was a NOOP. DAG size: 1025 [2019-10-07 15:01:34,072 WARN L191 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 545 [2019-10-07 15:01:34,846 WARN L191 SmtUtils]: Spent 772.00 ms on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 15:01:35,426 WARN L191 SmtUtils]: Spent 577.00 ms on a formula simplification that was a NOOP. DAG size: 1025 [2019-10-07 15:01:35,994 WARN L191 SmtUtils]: Spent 565.00 ms on a formula simplification that was a NOOP. DAG size: 1025 [2019-10-07 15:01:36,176 WARN L191 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 545 [2019-10-07 15:01:36,951 WARN L191 SmtUtils]: Spent 773.00 ms on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 15:01:37,518 WARN L191 SmtUtils]: Spent 565.00 ms on a formula simplification that was a NOOP. DAG size: 1025 [2019-10-07 15:01:38,081 WARN L191 SmtUtils]: Spent 560.00 ms on a formula simplification that was a NOOP. DAG size: 1025 [2019-10-07 15:01:38,338 WARN L191 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 545 [2019-10-07 15:01:39,119 WARN L191 SmtUtils]: Spent 779.00 ms on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 15:01:39,697 WARN L191 SmtUtils]: Spent 575.00 ms on a formula simplification that was a NOOP. DAG size: 1025 [2019-10-07 15:01:40,261 WARN L191 SmtUtils]: Spent 561.00 ms on a formula simplification that was a NOOP. DAG size: 1025 [2019-10-07 15:01:40,435 WARN L191 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 545 [2019-10-07 15:01:41,213 WARN L191 SmtUtils]: Spent 776.00 ms on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 15:01:41,785 WARN L191 SmtUtils]: Spent 568.00 ms on a formula simplification that was a NOOP. DAG size: 1025 [2019-10-07 15:01:42,355 WARN L191 SmtUtils]: Spent 566.00 ms on a formula simplification that was a NOOP. DAG size: 1025 [2019-10-07 15:01:42,545 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 545 [2019-10-07 15:01:43,316 WARN L191 SmtUtils]: Spent 769.00 ms on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 15:01:43,883 WARN L191 SmtUtils]: Spent 564.00 ms on a formula simplification that was a NOOP. DAG size: 1025 [2019-10-07 15:01:44,451 WARN L191 SmtUtils]: Spent 565.00 ms on a formula simplification that was a NOOP. DAG size: 1025 [2019-10-07 15:01:44,628 WARN L191 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 545 [2019-10-07 15:01:45,407 WARN L191 SmtUtils]: Spent 777.00 ms on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 15:01:45,968 WARN L191 SmtUtils]: Spent 558.00 ms on a formula simplification that was a NOOP. DAG size: 1025 [2019-10-07 15:01:46,543 WARN L191 SmtUtils]: Spent 572.00 ms on a formula simplification that was a NOOP. DAG size: 1025 [2019-10-07 15:01:46,719 WARN L191 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 545 [2019-10-07 15:01:47,489 WARN L191 SmtUtils]: Spent 768.00 ms on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 15:01:48,326 WARN L191 SmtUtils]: Spent 792.00 ms on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 15:01:49,098 WARN L191 SmtUtils]: Spent 769.00 ms on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 15:01:49,288 WARN L191 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 545 [2019-10-07 15:01:50,068 WARN L191 SmtUtils]: Spent 778.00 ms on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 15:01:51,469 WARN L191 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 1132 DAG size of output: 1130 [2019-10-07 15:01:52,234 WARN L191 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 15:01:52,422 WARN L191 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 545 [2019-10-07 15:01:53,190 WARN L191 SmtUtils]: Spent 766.00 ms on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 15:01:53,953 WARN L191 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 15:01:54,734 WARN L191 SmtUtils]: Spent 777.00 ms on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 15:01:54,915 WARN L191 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 545 [2019-10-07 15:01:55,687 WARN L191 SmtUtils]: Spent 770.00 ms on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 15:01:56,543 WARN L191 SmtUtils]: Spent 822.00 ms on a formula simplification that was a NOOP. DAG size: 1134 [2019-10-07 15:01:57,317 WARN L191 SmtUtils]: Spent 770.00 ms on a formula simplification that was a NOOP. DAG size: 1134 [2019-10-07 15:01:57,501 WARN L191 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-10-07 15:01:58,272 WARN L191 SmtUtils]: Spent 768.00 ms on a formula simplification that was a NOOP. DAG size: 1134 [2019-10-07 15:01:59,095 WARN L191 SmtUtils]: Spent 803.00 ms on a formula simplification that was a NOOP. DAG size: 1134 [2019-10-07 15:01:59,867 WARN L191 SmtUtils]: Spent 767.00 ms on a formula simplification that was a NOOP. DAG size: 1134 [2019-10-07 15:02:00,056 WARN L191 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-10-07 15:02:00,826 WARN L191 SmtUtils]: Spent 768.00 ms on a formula simplification that was a NOOP. DAG size: 1134 [2019-10-07 15:02:01,593 WARN L191 SmtUtils]: Spent 764.00 ms on a formula simplification that was a NOOP. DAG size: 1134 [2019-10-07 15:02:02,359 WARN L191 SmtUtils]: Spent 763.00 ms on a formula simplification that was a NOOP. DAG size: 1134 [2019-10-07 15:02:02,544 WARN L191 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-10-07 15:02:03,314 WARN L191 SmtUtils]: Spent 768.00 ms on a formula simplification that was a NOOP. DAG size: 1134 [2019-10-07 15:02:04,090 WARN L191 SmtUtils]: Spent 769.00 ms on a formula simplification that was a NOOP. DAG size: 1139 [2019-10-07 15:02:04,862 WARN L191 SmtUtils]: Spent 768.00 ms on a formula simplification that was a NOOP. DAG size: 1139 [2019-10-07 15:02:05,105 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-10-07 15:02:05,889 WARN L191 SmtUtils]: Spent 781.00 ms on a formula simplification that was a NOOP. DAG size: 1139 [2019-10-07 15:02:06,663 WARN L191 SmtUtils]: Spent 770.00 ms on a formula simplification that was a NOOP. DAG size: 1141 [2019-10-07 15:02:07,441 WARN L191 SmtUtils]: Spent 774.00 ms on a formula simplification that was a NOOP. DAG size: 1141 [2019-10-07 15:02:07,623 WARN L191 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-10-07 15:02:08,396 WARN L191 SmtUtils]: Spent 770.00 ms on a formula simplification that was a NOOP. DAG size: 1141 [2019-10-07 15:02:09,936 WARN L191 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 1132 DAG size of output: 1130 [2019-10-07 15:02:10,706 WARN L191 SmtUtils]: Spent 767.00 ms on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 15:02:10,896 WARN L191 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 545 [2019-10-07 15:02:11,658 WARN L191 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 15:02:13,069 WARN L191 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 1132 DAG size of output: 1130 [2019-10-07 15:02:13,839 WARN L191 SmtUtils]: Spent 766.00 ms on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 15:02:14,031 WARN L191 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 545 [2019-10-07 15:02:14,794 WARN L191 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 15:02:15,573 WARN L191 SmtUtils]: Spent 776.00 ms on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 15:02:16,344 WARN L191 SmtUtils]: Spent 768.00 ms on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 15:02:16,520 WARN L191 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 545 [2019-10-07 15:02:17,280 WARN L191 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 15:02:18,881 WARN L191 SmtUtils]: Spent 1.56 s on a formula simplification. DAG size of input: 1132 DAG size of output: 1130 [2019-10-07 15:02:19,640 WARN L191 SmtUtils]: Spent 755.00 ms on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 15:02:19,824 WARN L191 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 545 [2019-10-07 15:02:20,595 WARN L191 SmtUtils]: Spent 769.00 ms on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 15:02:22,176 WARN L191 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 1132 DAG size of output: 1130 [2019-10-07 15:02:22,934 WARN L191 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 15:02:23,117 WARN L191 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 545 [2019-10-07 15:02:23,874 WARN L191 SmtUtils]: Spent 755.00 ms on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 15:02:24,656 WARN L191 SmtUtils]: Spent 779.00 ms on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 15:02:25,436 WARN L191 SmtUtils]: Spent 777.00 ms on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 15:02:25,611 WARN L191 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 545 [2019-10-07 15:02:26,390 WARN L191 SmtUtils]: Spent 778.00 ms on a formula simplification that was a NOOP. DAG size: 1130 [2019-10-07 15:02:27,807 WARN L191 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 1136 DAG size of output: 1134 [2019-10-07 15:02:28,572 WARN L191 SmtUtils]: Spent 762.00 ms on a formula simplification that was a NOOP. DAG size: 1134 [2019-10-07 15:02:28,757 WARN L191 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-10-07 15:02:29,525 WARN L191 SmtUtils]: Spent 766.00 ms on a formula simplification that was a NOOP. DAG size: 1134 [2019-10-07 15:02:31,209 WARN L191 SmtUtils]: Spent 1.67 s on a formula simplification. DAG size of input: 1136 DAG size of output: 1132 [2019-10-07 15:02:31,970 WARN L191 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 1132 [2019-10-07 15:02:32,154 WARN L191 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-10-07 15:02:32,915 WARN L191 SmtUtils]: Spent 759.00 ms on a formula simplification that was a NOOP. DAG size: 1134 [2019-10-07 15:02:34,294 WARN L191 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 1136 DAG size of output: 1132 [2019-10-07 15:02:35,077 WARN L191 SmtUtils]: Spent 779.00 ms on a formula simplification that was a NOOP. DAG size: 1132 [2019-10-07 15:02:35,254 WARN L191 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-10-07 15:02:36,026 WARN L191 SmtUtils]: Spent 770.00 ms on a formula simplification that was a NOOP. DAG size: 1134 [2019-10-07 15:02:37,410 WARN L191 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 1141 DAG size of output: 1132 [2019-10-07 15:02:38,186 WARN L191 SmtUtils]: Spent 773.00 ms on a formula simplification that was a NOOP. DAG size: 1132 [2019-10-07 15:02:38,382 WARN L191 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-10-07 15:02:39,157 WARN L191 SmtUtils]: Spent 773.00 ms on a formula simplification that was a NOOP. DAG size: 1134 [2019-10-07 15:02:40,542 WARN L191 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 1143 DAG size of output: 1134 [2019-10-07 15:02:41,317 WARN L191 SmtUtils]: Spent 771.00 ms on a formula simplification that was a NOOP. DAG size: 1134 [2019-10-07 15:02:41,527 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-10-07 15:02:42,298 WARN L191 SmtUtils]: Spent 769.00 ms on a formula simplification that was a NOOP. DAG size: 1136 [2019-10-07 15:02:42,569 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:02:42,570 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 15:02:42,582 INFO L168 Benchmark]: Toolchain (without parser) took 167559.63 ms. Allocated memory was 143.7 MB in the beginning and 794.8 MB in the end (delta: 651.2 MB). Free memory was 97.4 MB in the beginning and 223.2 MB in the end (delta: -125.7 MB). Peak memory consumption was 525.4 MB. Max. memory is 7.1 GB. [2019-10-07 15:02:42,582 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 143.7 MB. Free memory was 118.7 MB in the beginning and 118.5 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-10-07 15:02:42,588 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1095.69 ms. Allocated memory was 143.7 MB in the beginning and 202.9 MB in the end (delta: 59.2 MB). Free memory was 97.2 MB in the beginning and 140.8 MB in the end (delta: -43.6 MB). Peak memory consumption was 28.6 MB. Max. memory is 7.1 GB. [2019-10-07 15:02:42,589 INFO L168 Benchmark]: Boogie Preprocessor took 232.99 ms. Allocated memory is still 202.9 MB. Free memory was 140.8 MB in the beginning and 132.2 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 7.1 GB. [2019-10-07 15:02:42,589 INFO L168 Benchmark]: RCFGBuilder took 4567.23 ms. Allocated memory was 202.9 MB in the beginning and 298.3 MB in the end (delta: 95.4 MB). Free memory was 132.2 MB in the beginning and 126.1 MB in the end (delta: 6.1 MB). Peak memory consumption was 104.0 MB. Max. memory is 7.1 GB. [2019-10-07 15:02:42,593 INFO L168 Benchmark]: TraceAbstraction took 161658.31 ms. Allocated memory was 298.3 MB in the beginning and 794.8 MB in the end (delta: 496.5 MB). Free memory was 122.9 MB in the beginning and 223.2 MB in the end (delta: -100.2 MB). Peak memory consumption was 396.3 MB. Max. memory is 7.1 GB. [2019-10-07 15:02:42,599 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 143.7 MB. Free memory was 118.7 MB in the beginning and 118.5 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1095.69 ms. Allocated memory was 143.7 MB in the beginning and 202.9 MB in the end (delta: 59.2 MB). Free memory was 97.2 MB in the beginning and 140.8 MB in the end (delta: -43.6 MB). Peak memory consumption was 28.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 232.99 ms. Allocated memory is still 202.9 MB. Free memory was 140.8 MB in the beginning and 132.2 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4567.23 ms. Allocated memory was 202.9 MB in the beginning and 298.3 MB in the end (delta: 95.4 MB). Free memory was 132.2 MB in the beginning and 126.1 MB in the end (delta: 6.1 MB). Peak memory consumption was 104.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 161658.31 ms. Allocated memory was 298.3 MB in the beginning and 794.8 MB in the end (delta: 496.5 MB). Free memory was 122.9 MB in the beginning and 223.2 MB in the end (delta: -100.2 MB). Peak memory consumption was 396.3 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...