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_spec3_product23.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 14:52:41,865 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 14:52:41,867 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 14:52:41,880 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 14:52:41,881 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 14:52:41,882 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 14:52:41,883 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 14:52:41,886 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 14:52:41,898 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 14:52:41,899 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 14:52:41,901 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 14:52:41,903 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 14:52:41,903 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 14:52:41,906 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 14:52:41,908 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 14:52:41,910 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 14:52:41,912 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 14:52:41,914 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 14:52:41,916 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 14:52:41,922 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 14:52:41,926 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 14:52:41,929 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 14:52:41,932 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 14:52:41,933 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 14:52:41,935 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 14:52:41,936 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 14:52:41,936 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 14:52:41,938 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 14:52:41,939 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 14:52:41,940 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 14:52:41,941 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 14:52:41,943 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 14:52:41,944 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 14:52:41,945 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 14:52:41,947 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 14:52:41,947 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 14:52:41,948 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 14:52:41,948 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 14:52:41,948 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 14:52:41,949 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 14:52:41,951 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 14:52:41,951 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 14:52:41,987 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 14:52:41,987 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 14:52:41,989 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 14:52:41,989 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 14:52:41,989 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 14:52:41,992 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 14:52:41,993 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 14:52:41,993 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 14:52:41,993 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 14:52:41,993 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 14:52:41,994 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 14:52:41,994 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 14:52:41,994 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 14:52:41,994 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 14:52:41,994 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 14:52:41,995 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 14:52:41,995 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 14:52:41,995 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 14:52:41,997 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 14:52:41,997 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 14:52:41,998 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 14:52:41,998 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:52:41,998 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 14:52:41,998 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 14:52:41,998 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 14:52:41,999 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 14:52:41,999 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 14:52:41,999 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 14:52:41,999 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 14:52:42,324 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 14:52:42,345 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 14:52:42,348 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 14:52:42,350 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 14:52:42,351 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 14:52:42,351 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec3_product23.cil.c [2019-10-07 14:52:42,431 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cab962ad/7742d9ff633e44dfa6506850bd075a55/FLAG4ae17a6b0 [2019-10-07 14:52:43,137 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 14:52:43,138 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec3_product23.cil.c [2019-10-07 14:52:43,159 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cab962ad/7742d9ff633e44dfa6506850bd075a55/FLAG4ae17a6b0 [2019-10-07 14:52:43,301 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cab962ad/7742d9ff633e44dfa6506850bd075a55 [2019-10-07 14:52:43,310 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 14:52:43,312 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 14:52:43,313 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 14:52:43,313 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 14:52:43,317 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 14:52:43,318 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:52:43" (1/1) ... [2019-10-07 14:52:43,321 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fc7feb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:52:43, skipping insertion in model container [2019-10-07 14:52:43,321 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:52:43" (1/1) ... [2019-10-07 14:52:43,330 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 14:52:43,419 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 14:52:44,252 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:52:44,270 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 14:52:44,397 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:52:44,491 INFO L192 MainTranslator]: Completed translation [2019-10-07 14:52:44,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:52:44 WrapperNode [2019-10-07 14:52:44,492 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 14:52:44,493 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 14:52:44,493 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 14:52:44,493 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 14:52:44,506 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:52:44" (1/1) ... [2019-10-07 14:52:44,507 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:52:44" (1/1) ... [2019-10-07 14:52:44,540 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:52:44" (1/1) ... [2019-10-07 14:52:44,540 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:52:44" (1/1) ... [2019-10-07 14:52:44,615 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:52:44" (1/1) ... [2019-10-07 14:52:44,638 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:52:44" (1/1) ... [2019-10-07 14:52:44,651 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:52:44" (1/1) ... [2019-10-07 14:52:44,672 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 14:52:44,673 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 14:52:44,673 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 14:52:44,673 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 14:52:44,674 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:52:44" (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 14:52:44,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 14:52:44,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 14:52:44,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 14:52:44,775 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-07 14:52:44,775 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-07 14:52:44,777 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-07 14:52:44,777 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-07 14:52:44,778 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-07 14:52:44,778 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-07 14:52:44,779 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-07 14:52:44,779 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-07 14:52:44,780 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 14:52:44,780 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 14:52:44,781 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-07 14:52:44,781 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-07 14:52:44,781 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-07 14:52:44,784 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-07 14:52:44,784 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-07 14:52:44,785 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-07 14:52:44,785 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-07 14:52:44,785 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-07 14:52:44,786 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-07 14:52:44,786 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-07 14:52:44,786 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-07 14:52:44,786 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 14:52:44,786 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 14:52:44,787 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 14:52:44,787 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 14:52:44,787 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 14:52:44,787 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 14:52:44,787 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 14:52:44,788 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 14:52:44,788 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-07 14:52:44,788 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-07 14:52:44,788 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-07 14:52:44,788 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-07 14:52:44,788 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-07 14:52:44,789 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-07 14:52:44,789 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-07 14:52:44,789 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-07 14:52:44,789 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-07 14:52:44,789 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-07 14:52:44,790 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-07 14:52:44,790 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-07 14:52:44,790 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-07 14:52:44,790 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-07 14:52:44,790 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-07 14:52:44,791 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-07 14:52:44,791 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-07 14:52:44,791 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-07 14:52:44,791 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-07 14:52:44,791 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-07 14:52:44,791 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-07 14:52:44,791 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-07 14:52:44,792 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 14:52:44,792 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 14:52:44,792 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 14:52:44,792 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 14:52:44,792 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-07 14:52:44,793 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-07 14:52:44,793 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-07 14:52:44,794 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-07 14:52:44,794 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-07 14:52:44,794 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-07 14:52:44,794 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignVerify_spec__1 [2019-10-07 14:52:44,794 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignVerify_spec__2 [2019-10-07 14:52:44,794 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-07 14:52:44,795 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-07 14:52:44,795 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-07 14:52:44,795 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-07 14:52:44,795 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-07 14:52:44,795 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Keys [2019-10-07 14:52:44,795 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-07 14:52:44,796 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-07 14:52:44,796 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-07 14:52:44,797 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-07 14:52:44,797 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-07 14:52:44,797 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-07 14:52:44,798 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-07 14:52:44,798 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-07 14:52:44,798 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-07 14:52:44,799 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-07 14:52:44,799 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-07 14:52:44,799 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-07 14:52:44,799 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-07 14:52:44,800 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-07 14:52:44,800 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-07 14:52:44,801 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-07 14:52:44,801 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-07 14:52:44,801 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-07 14:52:44,801 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-07 14:52:44,801 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-07 14:52:44,801 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-07 14:52:44,802 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-07 14:52:44,802 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-07 14:52:44,802 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-07 14:52:44,802 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-07 14:52:44,802 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-07 14:52:44,802 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-07 14:52:44,802 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-07 14:52:44,803 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-07 14:52:44,803 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-07 14:52:44,803 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-07 14:52:44,803 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-07 14:52:44,803 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-07 14:52:44,803 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-07 14:52:44,804 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-07 14:52:44,804 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-07 14:52:44,804 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-07 14:52:44,804 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-07 14:52:44,804 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-07 14:52:44,804 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-07 14:52:44,804 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-07 14:52:44,805 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-07 14:52:44,805 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-07 14:52:44,805 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 14:52:44,805 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 14:52:44,806 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 14:52:44,806 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-07 14:52:44,806 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-07 14:52:44,807 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-07 14:52:44,807 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-07 14:52:44,807 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-07 14:52:44,807 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-07 14:52:44,808 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-07 14:52:44,809 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-07 14:52:44,809 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-07 14:52:44,809 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-07 14:52:44,809 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-07 14:52:44,809 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-07 14:52:44,809 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 14:52:44,810 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 14:52:44,810 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 14:52:44,811 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-07 14:52:44,815 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-07 14:52:44,816 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-07 14:52:44,816 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-07 14:52:44,816 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-07 14:52:44,816 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-07 14:52:44,816 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-07 14:52:44,816 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-07 14:52:44,817 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-07 14:52:44,817 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-07 14:52:44,817 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-07 14:52:44,817 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 14:52:44,817 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 14:52:44,817 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 14:52:44,818 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-07 14:52:44,818 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-07 14:52:44,818 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-07 14:52:44,818 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-07 14:52:44,818 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-07 14:52:44,818 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-07 14:52:44,818 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-07 14:52:44,818 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-07 14:52:44,819 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-07 14:52:44,819 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-07 14:52:44,819 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-07 14:52:44,819 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-07 14:52:44,819 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-07 14:52:44,819 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-07 14:52:44,820 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 14:52:44,820 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 14:52:44,820 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 14:52:44,820 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 14:52:44,820 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 14:52:44,820 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 14:52:44,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 14:52:44,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 14:52:44,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 14:52:44,821 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 14:52:44,821 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 14:52:44,821 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 14:52:44,821 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 14:52:44,822 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 14:52:44,822 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 14:52:44,822 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 14:52:44,822 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 14:52:44,822 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 14:52:44,822 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-07 14:52:44,822 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-07 14:52:44,823 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-07 14:52:44,823 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-07 14:52:44,823 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-07 14:52:44,823 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-07 14:52:44,823 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-07 14:52:44,823 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-07 14:52:44,823 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-07 14:52:44,824 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-07 14:52:44,824 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-07 14:52:44,824 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-07 14:52:44,824 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-07 14:52:44,824 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-07 14:52:44,824 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-07 14:52:44,825 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-07 14:52:44,825 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-07 14:52:44,825 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-07 14:52:44,825 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-07 14:52:44,825 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-07 14:52:44,825 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-07 14:52:44,825 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-07 14:52:44,826 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 14:52:44,826 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-07 14:52:44,826 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-07 14:52:44,826 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-07 14:52:44,826 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-07 14:52:44,826 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-07 14:52:44,826 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-07 14:52:44,827 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-07 14:52:44,827 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-07 14:52:44,827 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignVerify_spec__1 [2019-10-07 14:52:44,827 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignVerify_spec__2 [2019-10-07 14:52:44,827 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-07 14:52:44,827 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-07 14:52:44,828 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-07 14:52:44,828 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-07 14:52:44,828 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-07 14:52:44,828 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-07 14:52:44,828 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-07 14:52:44,828 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-07 14:52:44,828 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-07 14:52:44,829 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-07 14:52:44,829 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-07 14:52:44,829 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-07 14:52:44,829 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-07 14:52:44,829 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-07 14:52:44,829 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-07 14:52:44,829 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-07 14:52:44,830 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-07 14:52:44,830 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Keys [2019-10-07 14:52:44,830 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-07 14:52:44,830 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-07 14:52:44,830 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-07 14:52:44,830 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-07 14:52:44,831 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-07 14:52:44,831 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-07 14:52:44,831 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-07 14:52:44,831 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-07 14:52:44,831 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-07 14:52:44,831 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-07 14:52:44,832 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-07 14:52:44,832 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-07 14:52:44,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 14:52:44,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 14:52:44,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 14:52:49,784 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 14:52:49,785 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-07 14:52:49,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:52:49 BoogieIcfgContainer [2019-10-07 14:52:49,788 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 14:52:49,791 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 14:52:49,791 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 14:52:49,795 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 14:52:49,795 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 02:52:43" (1/3) ... [2019-10-07 14:52:49,796 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14289233 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:52:49, skipping insertion in model container [2019-10-07 14:52:49,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:52:44" (2/3) ... [2019-10-07 14:52:49,796 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14289233 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:52:49, skipping insertion in model container [2019-10-07 14:52:49,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:52:49" (3/3) ... [2019-10-07 14:52:49,799 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec3_product23.cil.c [2019-10-07 14:52:49,812 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 14:52:49,824 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 14:52:49,837 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 14:52:49,887 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 14:52:49,888 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 14:52:49,888 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 14:52:49,888 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 14:52:49,888 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 14:52:49,888 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 14:52:49,888 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 14:52:49,888 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 14:52:49,933 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states. [2019-10-07 14:52:49,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2019-10-07 14:52:49,966 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:52:49,975 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:52:49,977 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:52:49,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:52:49,984 INFO L82 PathProgramCache]: Analyzing trace with hash 1560692209, now seen corresponding path program 1 times [2019-10-07 14:52:49,993 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:52:49,993 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:52:49,993 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:52:49,994 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:52:49,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:52:50,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:52:50,704 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 14:52:50,705 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:52:50,706 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:52:50,706 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 14:52:50,774 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 14:52:50,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 14:52:50,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 14:52:50,792 INFO L87 Difference]: Start difference. First operand 406 states. Second operand 2 states. [2019-10-07 14:52:50,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:52:50,884 INFO L93 Difference]: Finished difference Result 562 states and 671 transitions. [2019-10-07 14:52:50,884 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 14:52:50,887 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 141 [2019-10-07 14:52:50,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:52:50,928 INFO L225 Difference]: With dead ends: 562 [2019-10-07 14:52:50,928 INFO L226 Difference]: Without dead ends: 363 [2019-10-07 14:52:50,943 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 14:52:50,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2019-10-07 14:52:51,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 363. [2019-10-07 14:52:51,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 363 states. [2019-10-07 14:52:51,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 428 transitions. [2019-10-07 14:52:51,057 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 428 transitions. Word has length 141 [2019-10-07 14:52:51,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:52:51,059 INFO L462 AbstractCegarLoop]: Abstraction has 363 states and 428 transitions. [2019-10-07 14:52:51,060 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 14:52:51,060 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 428 transitions. [2019-10-07 14:52:51,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2019-10-07 14:52:51,064 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:52:51,065 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:52:51,065 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:52:51,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:52:51,065 INFO L82 PathProgramCache]: Analyzing trace with hash 1624101455, now seen corresponding path program 1 times [2019-10-07 14:52:51,066 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:52:51,066 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:52:51,066 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:52:51,066 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:52:51,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:52:51,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:52:51,398 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 14:52:51,398 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:52:51,399 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:52:51,399 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:52:51,405 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:52:51,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:52:51,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:52:51,406 INFO L87 Difference]: Start difference. First operand 363 states and 428 transitions. Second operand 3 states. [2019-10-07 14:52:51,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:52:51,450 INFO L93 Difference]: Finished difference Result 547 states and 636 transitions. [2019-10-07 14:52:51,451 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:52:51,451 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2019-10-07 14:52:51,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:52:51,459 INFO L225 Difference]: With dead ends: 547 [2019-10-07 14:52:51,459 INFO L226 Difference]: Without dead ends: 365 [2019-10-07 14:52:51,461 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:52:51,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2019-10-07 14:52:51,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 365. [2019-10-07 14:52:51,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 365 states. [2019-10-07 14:52:51,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 430 transitions. [2019-10-07 14:52:51,520 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 430 transitions. Word has length 142 [2019-10-07 14:52:51,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:52:51,523 INFO L462 AbstractCegarLoop]: Abstraction has 365 states and 430 transitions. [2019-10-07 14:52:51,523 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:52:51,523 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 430 transitions. [2019-10-07 14:52:51,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2019-10-07 14:52:51,528 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:52:51,529 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:52:51,529 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:52:51,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:52:51,530 INFO L82 PathProgramCache]: Analyzing trace with hash -302069949, now seen corresponding path program 1 times [2019-10-07 14:52:51,530 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:52:51,530 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:52:51,530 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:52:51,530 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:52:51,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:52:51,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:52:51,738 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 14:52:51,738 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:52:51,738 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:52:51,739 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:52:51,741 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:52:51,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:52:51,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:52:51,742 INFO L87 Difference]: Start difference. First operand 365 states and 430 transitions. Second operand 3 states. [2019-10-07 14:52:51,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:52:51,813 INFO L93 Difference]: Finished difference Result 714 states and 870 transitions. [2019-10-07 14:52:51,814 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:52:51,814 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 151 [2019-10-07 14:52:51,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:52:51,821 INFO L225 Difference]: With dead ends: 714 [2019-10-07 14:52:51,821 INFO L226 Difference]: Without dead ends: 407 [2019-10-07 14:52:51,823 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:52:51,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2019-10-07 14:52:51,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 406. [2019-10-07 14:52:51,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 406 states. [2019-10-07 14:52:51,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 501 transitions. [2019-10-07 14:52:51,869 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 501 transitions. Word has length 151 [2019-10-07 14:52:51,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:52:51,870 INFO L462 AbstractCegarLoop]: Abstraction has 406 states and 501 transitions. [2019-10-07 14:52:51,870 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:52:51,871 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 501 transitions. [2019-10-07 14:52:51,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2019-10-07 14:52:51,887 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:52:51,887 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:52:51,887 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:52:51,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:52:51,888 INFO L82 PathProgramCache]: Analyzing trace with hash 1857275432, now seen corresponding path program 1 times [2019-10-07 14:52:51,889 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:52:51,889 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:52:51,889 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:52:51,890 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:52:51,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:52:51,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:52:52,235 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 14:52:52,236 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:52:52,236 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:52:52,236 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:52:52,237 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:52:52,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:52:52,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:52:52,238 INFO L87 Difference]: Start difference. First operand 406 states and 501 transitions. Second operand 3 states. [2019-10-07 14:52:52,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:52:52,270 INFO L93 Difference]: Finished difference Result 834 states and 1078 transitions. [2019-10-07 14:52:52,271 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:52:52,271 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 152 [2019-10-07 14:52:52,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:52:52,275 INFO L225 Difference]: With dead ends: 834 [2019-10-07 14:52:52,275 INFO L226 Difference]: Without dead ends: 486 [2019-10-07 14:52:52,277 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:52:52,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2019-10-07 14:52:52,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 485. [2019-10-07 14:52:52,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 485 states. [2019-10-07 14:52:52,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 637 transitions. [2019-10-07 14:52:52,301 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 637 transitions. Word has length 152 [2019-10-07 14:52:52,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:52:52,302 INFO L462 AbstractCegarLoop]: Abstraction has 485 states and 637 transitions. [2019-10-07 14:52:52,302 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:52:52,302 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 637 transitions. [2019-10-07 14:52:52,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2019-10-07 14:52:52,306 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:52:52,306 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:52:52,307 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:52:52,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:52:52,307 INFO L82 PathProgramCache]: Analyzing trace with hash -98813823, now seen corresponding path program 1 times [2019-10-07 14:52:52,307 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:52:52,308 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:52:52,308 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:52:52,308 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:52:52,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:52:52,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:52:53,010 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 14:52:53,010 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:52:53,011 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:52:53,011 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2019-10-07 14:52:53,011 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-10-07 14:52:53,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-10-07 14:52:53,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2019-10-07 14:52:53,013 INFO L87 Difference]: Start difference. First operand 485 states and 637 transitions. Second operand 25 states. [2019-10-07 14:53:05,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:53:05,288 INFO L93 Difference]: Finished difference Result 1116 states and 1379 transitions. [2019-10-07 14:53:05,288 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2019-10-07 14:53:05,288 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 155 [2019-10-07 14:53:05,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:53:05,295 INFO L225 Difference]: With dead ends: 1116 [2019-10-07 14:53:05,295 INFO L226 Difference]: Without dead ends: 934 [2019-10-07 14:53:05,298 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 737 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=404, Invalid=3018, Unknown=0, NotChecked=0, Total=3422 [2019-10-07 14:53:05,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 934 states. [2019-10-07 14:53:05,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 934 to 923. [2019-10-07 14:53:05,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 923 states. [2019-10-07 14:53:05,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 923 states to 923 states and 1144 transitions. [2019-10-07 14:53:05,353 INFO L78 Accepts]: Start accepts. Automaton has 923 states and 1144 transitions. Word has length 155 [2019-10-07 14:53:05,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:53:05,354 INFO L462 AbstractCegarLoop]: Abstraction has 923 states and 1144 transitions. [2019-10-07 14:53:05,354 INFO L463 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-10-07 14:53:05,354 INFO L276 IsEmpty]: Start isEmpty. Operand 923 states and 1144 transitions. [2019-10-07 14:53:05,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2019-10-07 14:53:05,357 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:53:05,357 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:53:05,358 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:53:05,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:53:05,358 INFO L82 PathProgramCache]: Analyzing trace with hash -841291605, now seen corresponding path program 1 times [2019-10-07 14:53:05,358 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:53:05,358 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:53:05,359 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:53:05,359 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:53:05,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:53:05,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:53:05,573 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 14:53:05,573 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:53:05,573 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:53:05,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:53:06,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:53:06,158 INFO L256 TraceCheckSpWp]: Trace formula consists of 2839 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:53:06,176 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:53:06,282 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 14:53:06,282 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:53:06,579 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 14:53:06,580 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 14:53:06,621 INFO L162 IcfgInterpreter]: Started Sifa with 150 locations of interest [2019-10-07 14:53:06,622 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 14:53:06,629 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 14:53:06,638 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 14:53:06,638 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 14:54:20,520 WARN L191 SmtUtils]: Spent 427.00 ms on a formula simplification that was a NOOP. DAG size: 713 [2019-10-07 14:54:25,409 WARN L191 SmtUtils]: Spent 1.59 s on a formula simplification. DAG size of input: 326 DAG size of output: 265 [2019-10-07 14:54:25,788 WARN L191 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 756 [2019-10-07 14:54:26,137 WARN L191 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 756 [2019-10-07 14:54:26,380 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 756 [2019-10-07 14:54:26,584 WARN L191 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 457 [2019-10-07 14:54:27,245 WARN L191 SmtUtils]: Spent 659.00 ms on a formula simplification that was a NOOP. DAG size: 1059 [2019-10-07 14:54:27,959 WARN L191 SmtUtils]: Spent 674.00 ms on a formula simplification that was a NOOP. DAG size: 1059 [2019-10-07 14:54:28,654 WARN L191 SmtUtils]: Spent 690.00 ms on a formula simplification that was a NOOP. DAG size: 1059 [2019-10-07 14:54:28,820 WARN L191 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 457 [2019-10-07 14:54:29,512 WARN L191 SmtUtils]: Spent 691.00 ms on a formula simplification that was a NOOP. DAG size: 1059 [2019-10-07 14:54:30,753 WARN L191 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 1061 DAG size of output: 1059 [2019-10-07 14:54:31,450 WARN L191 SmtUtils]: Spent 693.00 ms on a formula simplification that was a NOOP. DAG size: 1059 [2019-10-07 14:54:31,598 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 457 [2019-10-07 14:54:32,220 WARN L191 SmtUtils]: Spent 620.00 ms on a formula simplification that was a NOOP. DAG size: 1059 [2019-10-07 14:54:32,877 WARN L191 SmtUtils]: Spent 653.00 ms on a formula simplification that was a NOOP. DAG size: 1059 [2019-10-07 14:54:33,501 WARN L191 SmtUtils]: Spent 621.00 ms on a formula simplification that was a NOOP. DAG size: 1059 [2019-10-07 14:54:33,677 WARN L191 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 457 [2019-10-07 14:54:34,305 WARN L191 SmtUtils]: Spent 625.00 ms on a formula simplification that was a NOOP. DAG size: 1059 [2019-10-07 14:54:34,332 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 574 for LOIs [2019-10-07 14:54:34,730 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 677 [2019-10-07 14:54:34,841 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 677 [2019-10-07 14:54:34,971 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 457 [2019-10-07 14:54:35,460 WARN L191 SmtUtils]: Spent 487.00 ms on a formula simplification that was a NOOP. DAG size: 980 [2019-10-07 14:54:35,461 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1114 for LOIs [2019-10-07 14:54:36,073 WARN L191 SmtUtils]: Spent 610.00 ms on a formula simplification that was a NOOP. DAG size: 1114 [2019-10-07 14:54:36,732 WARN L191 SmtUtils]: Spent 655.00 ms on a formula simplification that was a NOOP. DAG size: 1114 [2019-10-07 14:54:36,984 WARN L191 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 644 [2019-10-07 14:54:37,983 WARN L191 SmtUtils]: Spent 996.00 ms on a formula simplification that was a NOOP. DAG size: 1307 [2019-10-07 14:54:38,623 WARN L191 SmtUtils]: Spent 628.00 ms on a formula simplification that was a NOOP. DAG size: 1114 [2019-10-07 14:54:39,265 WARN L191 SmtUtils]: Spent 638.00 ms on a formula simplification that was a NOOP. DAG size: 1114 [2019-10-07 14:54:39,521 WARN L191 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 644 [2019-10-07 14:54:40,564 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1307 [2019-10-07 14:54:41,270 WARN L191 SmtUtils]: Spent 670.00 ms on a formula simplification that was a NOOP. DAG size: 1114 [2019-10-07 14:54:41,901 WARN L191 SmtUtils]: Spent 628.00 ms on a formula simplification that was a NOOP. DAG size: 1114 [2019-10-07 14:54:42,174 WARN L191 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 644 [2019-10-07 14:54:43,213 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1307 [2019-10-07 14:54:44,202 WARN L191 SmtUtils]: Spent 960.00 ms on a formula simplification. DAG size of input: 1309 DAG size of output: 1114 [2019-10-07 14:54:44,826 WARN L191 SmtUtils]: Spent 620.00 ms on a formula simplification that was a NOOP. DAG size: 1114 [2019-10-07 14:54:45,312 WARN L191 SmtUtils]: Spent 466.00 ms on a formula simplification. DAG size of input: 646 DAG size of output: 644 [2019-10-07 14:54:46,311 WARN L191 SmtUtils]: Spent 998.00 ms on a formula simplification that was a NOOP. DAG size: 1307 [2019-10-07 14:54:46,965 WARN L191 SmtUtils]: Spent 638.00 ms on a formula simplification that was a NOOP. DAG size: 1114 [2019-10-07 14:54:47,582 WARN L191 SmtUtils]: Spent 614.00 ms on a formula simplification that was a NOOP. DAG size: 1114 [2019-10-07 14:54:47,832 WARN L191 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 644 [2019-10-07 14:54:48,846 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 1307 [2019-10-07 14:54:49,473 WARN L191 SmtUtils]: Spent 623.00 ms on a formula simplification that was a NOOP. DAG size: 1114 [2019-10-07 14:54:50,087 WARN L191 SmtUtils]: Spent 610.00 ms on a formula simplification that was a NOOP. DAG size: 1114 [2019-10-07 14:54:50,340 WARN L191 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 644 [2019-10-07 14:54:51,358 WARN L191 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 1307 [2019-10-07 14:54:51,983 WARN L191 SmtUtils]: Spent 622.00 ms on a formula simplification that was a NOOP. DAG size: 1114 [2019-10-07 14:54:52,603 WARN L191 SmtUtils]: Spent 616.00 ms on a formula simplification that was a NOOP. DAG size: 1114 [2019-10-07 14:54:52,854 WARN L191 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 644 [2019-10-07 14:54:53,856 WARN L191 SmtUtils]: Spent 999.00 ms on a formula simplification that was a NOOP. DAG size: 1307 [2019-10-07 14:54:54,474 WARN L191 SmtUtils]: Spent 615.00 ms on a formula simplification that was a NOOP. DAG size: 1114 [2019-10-07 14:54:55,104 WARN L191 SmtUtils]: Spent 627.00 ms on a formula simplification that was a NOOP. DAG size: 1114 [2019-10-07 14:54:55,348 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 644 [2019-10-07 14:54:56,343 WARN L191 SmtUtils]: Spent 992.00 ms on a formula simplification that was a NOOP. DAG size: 1307 [2019-10-07 14:54:56,956 WARN L191 SmtUtils]: Spent 611.00 ms on a formula simplification that was a NOOP. DAG size: 1114 [2019-10-07 14:54:57,576 WARN L191 SmtUtils]: Spent 616.00 ms on a formula simplification that was a NOOP. DAG size: 1114 [2019-10-07 14:54:57,820 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 644 [2019-10-07 14:54:58,824 WARN L191 SmtUtils]: Spent 1.00 s on a formula simplification that was a NOOP. DAG size: 1307 [2019-10-07 14:54:59,439 WARN L191 SmtUtils]: Spent 611.00 ms on a formula simplification that was a NOOP. DAG size: 1114 [2019-10-07 14:55:00,057 WARN L191 SmtUtils]: Spent 615.00 ms on a formula simplification that was a NOOP. DAG size: 1114 [2019-10-07 14:55:00,309 WARN L191 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 644 [2019-10-07 14:55:01,314 WARN L191 SmtUtils]: Spent 1.00 s on a formula simplification that was a NOOP. DAG size: 1307 [2019-10-07 14:55:01,938 WARN L191 SmtUtils]: Spent 619.00 ms on a formula simplification that was a NOOP. DAG size: 1114 [2019-10-07 14:55:02,553 WARN L191 SmtUtils]: Spent 611.00 ms on a formula simplification that was a NOOP. DAG size: 1114 [2019-10-07 14:55:02,797 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 644 [2019-10-07 14:55:03,806 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 1307 [2019-10-07 14:55:04,426 WARN L191 SmtUtils]: Spent 617.00 ms on a formula simplification that was a NOOP. DAG size: 1114 [2019-10-07 14:55:05,048 WARN L191 SmtUtils]: Spent 617.00 ms on a formula simplification that was a NOOP. DAG size: 1114 [2019-10-07 14:55:05,296 WARN L191 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 644 [2019-10-07 14:55:06,299 WARN L191 SmtUtils]: Spent 1.00 s on a formula simplification that was a NOOP. DAG size: 1307 [2019-10-07 14:55:06,913 WARN L191 SmtUtils]: Spent 611.00 ms on a formula simplification that was a NOOP. DAG size: 1114 [2019-10-07 14:55:07,530 WARN L191 SmtUtils]: Spent 614.00 ms on a formula simplification that was a NOOP. DAG size: 1114 [2019-10-07 14:55:07,777 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 644 [2019-10-07 14:55:08,792 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 1307 [2019-10-07 14:55:09,893 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1307 [2019-10-07 14:55:10,913 WARN L191 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 1307 [2019-10-07 14:55:11,182 WARN L191 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 644 [2019-10-07 14:55:12,198 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 1307 [2019-10-07 14:55:14,087 WARN L191 SmtUtils]: Spent 1.87 s on a formula simplification. DAG size of input: 1309 DAG size of output: 1307 [2019-10-07 14:55:15,109 WARN L191 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 1307 [2019-10-07 14:55:15,445 WARN L191 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 644 [2019-10-07 14:55:16,468 WARN L191 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 1307 [2019-10-07 14:55:17,485 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 1307 [2019-10-07 14:55:18,501 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 1307 [2019-10-07 14:55:18,786 WARN L191 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 644 [2019-10-07 14:55:19,810 WARN L191 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 1307 [2019-10-07 14:55:20,869 WARN L191 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 1309 [2019-10-07 14:55:21,884 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 1309 [2019-10-07 14:55:22,143 WARN L191 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 647 [2019-10-07 14:55:23,168 WARN L191 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 1311 [2019-10-07 14:55:25,678 WARN L191 SmtUtils]: Spent 2.49 s on a formula simplification. DAG size of input: 1313 DAG size of output: 1311 [2019-10-07 14:55:26,702 WARN L191 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 1311 [2019-10-07 14:55:26,966 WARN L191 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 647 [2019-10-07 14:55:27,994 WARN L191 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 1311 [2019-10-07 14:55:29,738 WARN L191 SmtUtils]: Spent 1.74 s on a formula simplification. DAG size of input: 1313 DAG size of output: 1309 [2019-10-07 14:55:30,760 WARN L191 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 1309 [2019-10-07 14:55:31,010 WARN L191 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 647 [2019-10-07 14:55:32,024 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 1311 [2019-10-07 14:55:33,042 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 1309 [2019-10-07 14:55:34,050 WARN L191 SmtUtils]: Spent 1.00 s on a formula simplification that was a NOOP. DAG size: 1309 [2019-10-07 14:55:34,304 WARN L191 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 647 [2019-10-07 14:55:35,320 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 1311 [2019-10-07 14:55:36,342 WARN L191 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 1311 [2019-10-07 14:55:37,372 WARN L191 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 1311 [2019-10-07 14:55:37,634 WARN L191 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 647 [2019-10-07 14:55:38,662 WARN L191 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 1313 [2019-10-07 14:55:41,152 WARN L191 SmtUtils]: Spent 2.45 s on a formula simplification. DAG size of input: 1309 DAG size of output: 1307 [2019-10-07 14:55:42,162 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 1307 [2019-10-07 14:55:42,425 WARN L191 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 644 [2019-10-07 14:55:43,446 WARN L191 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 1307 [2019-10-07 14:55:45,627 WARN L191 SmtUtils]: Spent 2.16 s on a formula simplification. DAG size of input: 1309 DAG size of output: 1307 [2019-10-07 14:55:46,641 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 1307 [2019-10-07 14:55:46,922 WARN L191 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 644 [2019-10-07 14:55:47,929 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 1307 [2019-10-07 14:55:48,943 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 1307 [2019-10-07 14:55:49,948 WARN L191 SmtUtils]: Spent 1.00 s on a formula simplification that was a NOOP. DAG size: 1307 [2019-10-07 14:55:50,196 WARN L191 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 644 [2019-10-07 14:55:51,213 WARN L191 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 1307 [2019-10-07 14:55:53,071 WARN L191 SmtUtils]: Spent 1.82 s on a formula simplification. DAG size of input: 1309 DAG size of output: 1307 [2019-10-07 14:55:54,076 WARN L191 SmtUtils]: Spent 1.00 s on a formula simplification that was a NOOP. DAG size: 1307 [2019-10-07 14:55:54,328 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 644 [2019-10-07 14:55:55,347 WARN L191 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 1307 [2019-10-07 14:55:57,193 WARN L191 SmtUtils]: Spent 1.83 s on a formula simplification. DAG size of input: 1309 DAG size of output: 1307 [2019-10-07 14:55:58,213 WARN L191 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 1307 [2019-10-07 14:55:58,468 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 644 [2019-10-07 14:55:59,468 WARN L191 SmtUtils]: Spent 998.00 ms on a formula simplification that was a NOOP. DAG size: 1307 [2019-10-07 14:56:00,469 WARN L191 SmtUtils]: Spent 996.00 ms on a formula simplification that was a NOOP. DAG size: 1307 [2019-10-07 14:56:01,488 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 1307 [2019-10-07 14:56:01,734 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 644 [2019-10-07 14:56:02,744 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 1307 [2019-10-07 14:56:04,522 WARN L191 SmtUtils]: Spent 1.74 s on a formula simplification. DAG size of input: 1313 DAG size of output: 1309 [2019-10-07 14:56:05,548 WARN L191 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 1309 [2019-10-07 14:56:05,806 WARN L191 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 647 [2019-10-07 14:56:06,832 WARN L191 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 1311 [2019-10-07 14:56:08,676 WARN L191 SmtUtils]: Spent 1.83 s on a formula simplification. DAG size of input: 1313 DAG size of output: 1311 [2019-10-07 14:56:09,690 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 1311 [2019-10-07 14:56:09,946 WARN L191 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 647 [2019-10-07 14:56:10,963 WARN L191 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 1311 [2019-10-07 14:56:12,695 WARN L191 SmtUtils]: Spent 1.73 s on a formula simplification. DAG size of input: 1313 DAG size of output: 1309 [2019-10-07 14:56:13,706 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 1309 [2019-10-07 14:56:13,954 WARN L191 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 647 [2019-10-07 14:56:14,967 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 1311 [2019-10-07 14:56:16,749 WARN L191 SmtUtils]: Spent 1.77 s on a formula simplification. DAG size of input: 1318 DAG size of output: 1311 [2019-10-07 14:56:17,780 WARN L191 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 1311 [2019-10-07 14:56:18,039 WARN L191 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 647 [2019-10-07 14:56:19,056 WARN L191 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 1311 [2019-10-07 14:56:20,813 WARN L191 SmtUtils]: Spent 1.75 s on a formula simplification. DAG size of input: 1320 DAG size of output: 1313 [2019-10-07 14:56:21,836 WARN L191 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 1313 [2019-10-07 14:56:22,093 WARN L191 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 647 [2019-10-07 14:56:23,106 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 1313 [2019-10-07 14:56:23,378 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:56:23,379 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:133) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.lib.sifa.PriorityWorklist.add(PriorityWorklist.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.lambda$2(DagInterpreter.java:135) at java.lang.Iterable.forEach(Iterable.java:75) at java.util.Collections$UnmodifiableCollection.forEach(Collections.java:1080) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:135) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:139) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:287) ... 21 more [2019-10-07 14:56:23,386 INFO L168 Benchmark]: Toolchain (without parser) took 220074.15 ms. Allocated memory was 135.3 MB in the beginning and 854.1 MB in the end (delta: 718.8 MB). Free memory was 97.1 MB in the beginning and 315.0 MB in the end (delta: -217.9 MB). Peak memory consumption was 500.9 MB. Max. memory is 7.1 GB. [2019-10-07 14:56:23,387 INFO L168 Benchmark]: CDTParser took 1.51 ms. Allocated memory is still 135.3 MB. Free memory was 118.5 MB in the beginning and 118.3 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-10-07 14:56:23,388 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1179.71 ms. Allocated memory was 135.3 MB in the beginning and 199.8 MB in the end (delta: 64.5 MB). Free memory was 96.9 MB in the beginning and 133.2 MB in the end (delta: -36.3 MB). Peak memory consumption was 33.5 MB. Max. memory is 7.1 GB. [2019-10-07 14:56:23,388 INFO L168 Benchmark]: Boogie Preprocessor took 179.30 ms. Allocated memory is still 199.8 MB. Free memory was 133.2 MB in the beginning and 123.3 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2019-10-07 14:56:23,389 INFO L168 Benchmark]: RCFGBuilder took 5115.61 ms. Allocated memory was 199.8 MB in the beginning and 323.5 MB in the end (delta: 123.7 MB). Free memory was 123.3 MB in the beginning and 145.5 MB in the end (delta: -22.2 MB). Peak memory consumption was 112.9 MB. Max. memory is 7.1 GB. [2019-10-07 14:56:23,390 INFO L168 Benchmark]: TraceAbstraction took 213593.58 ms. Allocated memory was 323.5 MB in the beginning and 854.1 MB in the end (delta: 530.6 MB). Free memory was 141.8 MB in the beginning and 315.0 MB in the end (delta: -173.2 MB). Peak memory consumption was 357.4 MB. Max. memory is 7.1 GB. [2019-10-07 14:56:23,395 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.51 ms. Allocated memory is still 135.3 MB. Free memory was 118.5 MB in the beginning and 118.3 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1179.71 ms. Allocated memory was 135.3 MB in the beginning and 199.8 MB in the end (delta: 64.5 MB). Free memory was 96.9 MB in the beginning and 133.2 MB in the end (delta: -36.3 MB). Peak memory consumption was 33.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 179.30 ms. Allocated memory is still 199.8 MB. Free memory was 133.2 MB in the beginning and 123.3 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5115.61 ms. Allocated memory was 199.8 MB in the beginning and 323.5 MB in the end (delta: 123.7 MB). Free memory was 123.3 MB in the beginning and 145.5 MB in the end (delta: -22.2 MB). Peak memory consumption was 112.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 213593.58 ms. Allocated memory was 323.5 MB in the beginning and 854.1 MB in the end (delta: 530.6 MB). Free memory was 141.8 MB in the beginning and 315.0 MB in the end (delta: -173.2 MB). Peak memory consumption was 357.4 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...