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_spec0_product21.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 14:37:54,575 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 14:37:54,579 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 14:37:54,597 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 14:37:54,597 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 14:37:54,599 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 14:37:54,601 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 14:37:54,610 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 14:37:54,615 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 14:37:54,618 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 14:37:54,619 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 14:37:54,620 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 14:37:54,621 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 14:37:54,622 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 14:37:54,625 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 14:37:54,626 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 14:37:54,628 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 14:37:54,629 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 14:37:54,630 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 14:37:54,635 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 14:37:54,639 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 14:37:54,641 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 14:37:54,644 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 14:37:54,645 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 14:37:54,647 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 14:37:54,647 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 14:37:54,647 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 14:37:54,649 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 14:37:54,650 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 14:37:54,651 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 14:37:54,651 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 14:37:54,652 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 14:37:54,652 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 14:37:54,653 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 14:37:54,654 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 14:37:54,654 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 14:37:54,655 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 14:37:54,655 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 14:37:54,655 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 14:37:54,656 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 14:37:54,657 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 14:37:54,658 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 14:37:54,691 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 14:37:54,692 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 14:37:54,693 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 14:37:54,693 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 14:37:54,693 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 14:37:54,694 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 14:37:54,694 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 14:37:54,694 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 14:37:54,697 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 14:37:54,697 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 14:37:54,698 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 14:37:54,698 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 14:37:54,698 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 14:37:54,698 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 14:37:54,698 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 14:37:54,699 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 14:37:54,699 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 14:37:54,699 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 14:37:54,699 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 14:37:54,699 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 14:37:54,700 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 14:37:54,700 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:37:54,700 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 14:37:54,700 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 14:37:54,700 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 14:37:54,701 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 14:37:54,701 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 14:37:54,701 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 14:37:54,701 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 14:37:55,000 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 14:37:55,017 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 14:37:55,020 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 14:37:55,022 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 14:37:55,022 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 14:37:55,023 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec0_product21.cil.c [2019-10-07 14:37:55,100 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a3084441/0a01b7c165fe4b54b58cf8d57704a2ab/FLAG1f939a27b [2019-10-07 14:37:55,721 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 14:37:55,722 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec0_product21.cil.c [2019-10-07 14:37:55,742 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a3084441/0a01b7c165fe4b54b58cf8d57704a2ab/FLAG1f939a27b [2019-10-07 14:37:55,903 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a3084441/0a01b7c165fe4b54b58cf8d57704a2ab [2019-10-07 14:37:55,913 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 14:37:55,915 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 14:37:55,919 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 14:37:55,919 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 14:37:55,923 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 14:37:55,924 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:37:55" (1/1) ... [2019-10-07 14:37:55,926 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f7e0ad1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:37:55, skipping insertion in model container [2019-10-07 14:37:55,926 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:37:55" (1/1) ... [2019-10-07 14:37:55,932 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 14:37:56,009 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 14:37:56,750 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:37:56,778 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 14:37:56,893 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:37:56,976 INFO L192 MainTranslator]: Completed translation [2019-10-07 14:37:56,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:37:56 WrapperNode [2019-10-07 14:37:56,977 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 14:37:56,978 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 14:37:56,978 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 14:37:56,978 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 14:37:56,989 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:37:56" (1/1) ... [2019-10-07 14:37:56,990 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:37:56" (1/1) ... [2019-10-07 14:37:57,020 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:37:56" (1/1) ... [2019-10-07 14:37:57,021 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:37:56" (1/1) ... [2019-10-07 14:37:57,076 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:37:56" (1/1) ... [2019-10-07 14:37:57,100 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:37:56" (1/1) ... [2019-10-07 14:37:57,113 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:37:56" (1/1) ... [2019-10-07 14:37:57,140 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 14:37:57,140 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 14:37:57,141 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 14:37:57,141 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 14:37:57,142 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:37:56" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:37:57,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 14:37:57,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 14:37:57,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 14:37:57,248 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-07 14:37:57,248 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-07 14:37:57,250 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-07 14:37:57,250 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-07 14:37:57,250 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-07 14:37:57,251 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-07 14:37:57,251 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-07 14:37:57,251 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-07 14:37:57,252 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-07 14:37:57,253 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-07 14:37:57,253 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-07 14:37:57,253 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-07 14:37:57,253 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-07 14:37:57,256 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-07 14:37:57,257 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-07 14:37:57,257 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-07 14:37:57,257 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-07 14:37:57,257 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-07 14:37:57,258 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-07 14:37:57,258 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-07 14:37:57,258 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-07 14:37:57,259 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-07 14:37:57,259 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-07 14:37:57,259 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-07 14:37:57,259 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-07 14:37:57,259 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-07 14:37:57,259 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-07 14:37:57,260 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-07 14:37:57,260 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-07 14:37:57,261 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-07 14:37:57,261 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-07 14:37:57,261 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-07 14:37:57,261 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-07 14:37:57,261 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-07 14:37:57,261 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-07 14:37:57,262 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-07 14:37:57,262 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-07 14:37:57,262 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-07 14:37:57,262 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-07 14:37:57,262 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-07 14:37:57,262 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-07 14:37:57,263 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-07 14:37:57,263 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-07 14:37:57,263 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-07 14:37:57,263 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-07 14:37:57,263 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-07 14:37:57,264 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-07 14:37:57,264 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-07 14:37:57,264 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-07 14:37:57,264 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-07 14:37:57,264 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-07 14:37:57,264 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 14:37:57,265 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 14:37:57,265 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 14:37:57,265 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 14:37:57,265 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 14:37:57,266 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 14:37:57,266 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 14:37:57,267 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 14:37:57,267 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 14:37:57,267 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 14:37:57,267 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 14:37:57,267 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 14:37:57,268 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptForward_spec__1 [2019-10-07 14:37:57,268 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-07 14:37:57,268 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-07 14:37:57,268 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-07 14:37:57,268 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-07 14:37:57,268 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-07 14:37:57,269 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-07 14:37:57,270 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-07 14:37:57,270 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-07 14:37:57,270 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 14:37:57,271 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 14:37:57,271 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-07 14:37:57,271 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-07 14:37:57,271 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-07 14:37:57,271 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-07 14:37:57,272 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-07 14:37:57,272 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-07 14:37:57,273 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-07 14:37:57,273 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-07 14:37:57,273 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-07 14:37:57,273 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-07 14:37:57,274 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-07 14:37:57,274 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-07 14:37:57,275 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-07 14:37:57,275 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-07 14:37:57,275 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-07 14:37:57,275 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-07 14:37:57,275 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AddressBook [2019-10-07 14:37:57,275 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-07 14:37:57,276 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-07 14:37:57,276 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-07 14:37:57,276 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-07 14:37:57,276 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-07 14:37:57,276 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-07 14:37:57,276 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-07 14:37:57,276 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-07 14:37:57,277 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-07 14:37:57,277 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-07 14:37:57,277 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-07 14:37:57,277 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-07 14:37:57,277 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-07 14:37:57,277 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-07 14:37:57,277 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-07 14:37:57,278 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-07 14:37:57,278 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-07 14:37:57,278 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-07 14:37:57,278 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 14:37:57,278 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 14:37:57,278 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-07 14:37:57,279 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-07 14:37:57,279 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-07 14:37:57,279 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-07 14:37:57,279 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-07 14:37:57,280 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-07 14:37:57,280 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-07 14:37:57,280 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-07 14:37:57,280 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-07 14:37:57,281 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-07 14:37:57,281 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-07 14:37:57,282 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-07 14:37:57,282 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-07 14:37:57,282 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-07 14:37:57,282 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-07 14:37:57,282 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-07 14:37:57,282 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-07 14:37:57,283 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-07 14:37:57,283 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-07 14:37:57,284 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-07 14:37:57,288 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-07 14:37:57,288 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-07 14:37:57,289 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-07 14:37:57,289 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-07 14:37:57,290 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-07 14:37:57,290 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-07 14:37:57,290 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-07 14:37:57,290 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-07 14:37:57,290 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-07 14:37:57,291 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 14:37:57,299 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-07 14:37:57,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 14:37:57,299 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-07 14:37:57,299 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-07 14:37:57,300 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-07 14:37:57,300 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-07 14:37:57,300 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-07 14:37:57,300 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-07 14:37:57,300 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-07 14:37:57,300 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-07 14:37:57,300 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-07 14:37:57,300 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-07 14:37:57,301 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-07 14:37:57,301 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-07 14:37:57,301 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-07 14:37:57,301 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-07 14:37:57,302 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-07 14:37:57,302 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-07 14:37:57,303 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-07 14:37:57,303 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-07 14:37:57,303 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-07 14:37:57,303 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-07 14:37:57,303 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-07 14:37:57,303 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 14:37:57,303 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 14:37:57,303 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 14:37:57,304 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 14:37:57,304 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 14:37:57,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 14:37:57,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 14:37:57,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 14:37:57,304 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 14:37:57,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 14:37:57,305 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 14:37:57,305 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 14:37:57,305 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 14:37:57,305 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 14:37:57,305 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 14:37:57,305 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 14:37:57,306 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 14:37:57,306 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 14:37:57,306 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 14:37:57,306 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 14:37:57,306 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 14:37:57,306 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-07 14:37:57,306 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-07 14:37:57,307 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-07 14:37:57,307 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-07 14:37:57,307 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-07 14:37:57,307 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-07 14:37:57,307 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-07 14:37:57,307 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-07 14:37:57,307 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-07 14:37:57,308 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-07 14:37:57,308 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 14:37:57,308 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-07 14:37:57,308 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-07 14:37:57,308 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptForward_spec__1 [2019-10-07 14:37:57,308 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-07 14:37:57,309 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-07 14:37:57,309 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-07 14:37:57,309 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-07 14:37:57,309 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-07 14:37:57,309 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-07 14:37:57,309 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-07 14:37:57,309 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-07 14:37:57,310 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-07 14:37:57,310 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-07 14:37:57,310 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 14:37:57,310 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 14:37:57,310 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-07 14:37:57,310 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-07 14:37:57,310 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-07 14:37:57,310 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-07 14:37:57,311 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-07 14:37:57,311 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-07 14:37:57,311 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-07 14:37:57,311 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-07 14:37:57,311 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-07 14:37:57,311 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-07 14:37:57,311 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-07 14:37:57,312 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-07 14:37:57,312 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-07 14:37:57,312 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-07 14:37:57,312 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-07 14:37:57,312 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-07 14:37:57,312 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-07 14:37:57,312 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AddressBook [2019-10-07 14:37:57,313 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-07 14:37:57,313 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-07 14:37:57,313 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-07 14:37:57,313 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-07 14:37:57,313 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 14:37:57,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 14:37:57,313 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 14:38:01,966 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 14:38:01,966 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-07 14:38:01,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:38:01 BoogieIcfgContainer [2019-10-07 14:38:01,968 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 14:38:01,970 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 14:38:01,970 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 14:38:01,973 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 14:38:01,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 02:37:55" (1/3) ... [2019-10-07 14:38:01,974 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65168ec3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:38:01, skipping insertion in model container [2019-10-07 14:38:01,974 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:37:56" (2/3) ... [2019-10-07 14:38:01,975 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65168ec3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:38:01, skipping insertion in model container [2019-10-07 14:38:01,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:38:01" (3/3) ... [2019-10-07 14:38:01,976 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec0_product21.cil.c [2019-10-07 14:38:01,987 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 14:38:01,996 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 14:38:02,008 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 14:38:02,038 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 14:38:02,038 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 14:38:02,038 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 14:38:02,039 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 14:38:02,039 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 14:38:02,039 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 14:38:02,039 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 14:38:02,039 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 14:38:02,067 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states. [2019-10-07 14:38:02,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2019-10-07 14:38:02,087 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:38:02,089 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:38:02,091 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:38:02,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:38:02,097 INFO L82 PathProgramCache]: Analyzing trace with hash 850924982, now seen corresponding path program 1 times [2019-10-07 14:38:02,107 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:38:02,107 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:38:02,108 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:38:02,108 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:38:02,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:38:02,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:38:02,750 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 14:38:02,751 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:38:02,751 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:38:02,751 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 14:38:02,756 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 14:38:02,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 14:38:02,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 14:38:02,773 INFO L87 Difference]: Start difference. First operand 390 states. Second operand 2 states. [2019-10-07 14:38:02,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:38:02,840 INFO L93 Difference]: Finished difference Result 562 states and 670 transitions. [2019-10-07 14:38:02,840 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 14:38:02,841 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 156 [2019-10-07 14:38:02,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:38:02,861 INFO L225 Difference]: With dead ends: 562 [2019-10-07 14:38:02,861 INFO L226 Difference]: Without dead ends: 363 [2019-10-07 14:38:02,867 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 14:38:02,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2019-10-07 14:38:02,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 363. [2019-10-07 14:38:02,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 363 states. [2019-10-07 14:38:02,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 428 transitions. [2019-10-07 14:38:02,950 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 428 transitions. Word has length 156 [2019-10-07 14:38:02,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:38:02,952 INFO L462 AbstractCegarLoop]: Abstraction has 363 states and 428 transitions. [2019-10-07 14:38:02,952 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 14:38:02,953 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 428 transitions. [2019-10-07 14:38:02,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2019-10-07 14:38:02,959 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:38:02,959 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:38:02,960 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:38:02,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:38:02,960 INFO L82 PathProgramCache]: Analyzing trace with hash 1759422716, now seen corresponding path program 1 times [2019-10-07 14:38:02,960 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:38:02,961 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:38:02,961 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:38:02,961 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:38:02,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:38:03,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:38:03,286 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 14:38:03,287 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:38:03,287 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:38:03,287 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:38:03,292 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:38:03,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:38:03,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:38:03,293 INFO L87 Difference]: Start difference. First operand 363 states and 428 transitions. Second operand 3 states. [2019-10-07 14:38:03,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:38:03,353 INFO L93 Difference]: Finished difference Result 547 states and 636 transitions. [2019-10-07 14:38:03,354 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:38:03,354 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 157 [2019-10-07 14:38:03,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:38:03,359 INFO L225 Difference]: With dead ends: 547 [2019-10-07 14:38:03,359 INFO L226 Difference]: Without dead ends: 365 [2019-10-07 14:38:03,362 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 14:38:03,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2019-10-07 14:38:03,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 365. [2019-10-07 14:38:03,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 365 states. [2019-10-07 14:38:03,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 430 transitions. [2019-10-07 14:38:03,396 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 430 transitions. Word has length 157 [2019-10-07 14:38:03,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:38:03,396 INFO L462 AbstractCegarLoop]: Abstraction has 365 states and 430 transitions. [2019-10-07 14:38:03,397 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:38:03,397 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 430 transitions. [2019-10-07 14:38:03,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2019-10-07 14:38:03,401 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:38:03,401 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:38:03,401 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:38:03,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:38:03,402 INFO L82 PathProgramCache]: Analyzing trace with hash 467859541, now seen corresponding path program 1 times [2019-10-07 14:38:03,402 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:38:03,402 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:38:03,402 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:38:03,402 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:38:03,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:38:03,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:38:03,691 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 14:38:03,691 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:38:03,691 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:38:03,691 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:38:03,693 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:38:03,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:38:03,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:38:03,694 INFO L87 Difference]: Start difference. First operand 365 states and 430 transitions. Second operand 3 states. [2019-10-07 14:38:03,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:38:03,759 INFO L93 Difference]: Finished difference Result 714 states and 870 transitions. [2019-10-07 14:38:03,760 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:38:03,760 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 162 [2019-10-07 14:38:03,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:38:03,764 INFO L225 Difference]: With dead ends: 714 [2019-10-07 14:38:03,764 INFO L226 Difference]: Without dead ends: 407 [2019-10-07 14:38:03,767 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 14:38:03,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2019-10-07 14:38:03,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 406. [2019-10-07 14:38:03,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 406 states. [2019-10-07 14:38:03,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 501 transitions. [2019-10-07 14:38:03,796 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 501 transitions. Word has length 162 [2019-10-07 14:38:03,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:38:03,797 INFO L462 AbstractCegarLoop]: Abstraction has 406 states and 501 transitions. [2019-10-07 14:38:03,797 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:38:03,797 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 501 transitions. [2019-10-07 14:38:03,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2019-10-07 14:38:03,801 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:38:03,801 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:38:03,801 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:38:03,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:38:03,802 INFO L82 PathProgramCache]: Analyzing trace with hash -1903128941, now seen corresponding path program 1 times [2019-10-07 14:38:03,802 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:38:03,805 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:38:03,805 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:38:03,805 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:38:03,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:38:03,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:38:04,594 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 14:38:04,594 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:38:04,594 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:38:04,595 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2019-10-07 14:38:04,595 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2019-10-07 14:38:04,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2019-10-07 14:38:04,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2019-10-07 14:38:04,596 INFO L87 Difference]: Start difference. First operand 406 states and 501 transitions. Second operand 28 states. [2019-10-07 14:38:12,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:38:12,649 INFO L93 Difference]: Finished difference Result 830 states and 1024 transitions. [2019-10-07 14:38:12,649 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2019-10-07 14:38:12,649 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 163 [2019-10-07 14:38:12,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:38:12,655 INFO L225 Difference]: With dead ends: 830 [2019-10-07 14:38:12,655 INFO L226 Difference]: Without dead ends: 658 [2019-10-07 14:38:12,657 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=170, Invalid=1900, Unknown=0, NotChecked=0, Total=2070 [2019-10-07 14:38:12,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2019-10-07 14:38:12,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 646. [2019-10-07 14:38:12,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 646 states. [2019-10-07 14:38:12,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 646 states to 646 states and 800 transitions. [2019-10-07 14:38:12,706 INFO L78 Accepts]: Start accepts. Automaton has 646 states and 800 transitions. Word has length 163 [2019-10-07 14:38:12,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:38:12,709 INFO L462 AbstractCegarLoop]: Abstraction has 646 states and 800 transitions. [2019-10-07 14:38:12,709 INFO L463 AbstractCegarLoop]: Interpolant automaton has 28 states. [2019-10-07 14:38:12,710 INFO L276 IsEmpty]: Start isEmpty. Operand 646 states and 800 transitions. [2019-10-07 14:38:12,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2019-10-07 14:38:12,717 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:38:12,717 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:38:12,718 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:38:12,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:38:12,718 INFO L82 PathProgramCache]: Analyzing trace with hash -76166860, now seen corresponding path program 1 times [2019-10-07 14:38:12,719 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:38:12,719 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:38:12,719 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:38:12,719 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:38:12,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:38:12,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:38:12,947 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 14:38:12,948 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:38:12,948 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:38:12,948 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-07 14:38:12,949 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-07 14:38:12,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-07 14:38:12,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-07 14:38:12,950 INFO L87 Difference]: Start difference. First operand 646 states and 800 transitions. Second operand 10 states. [2019-10-07 14:38:13,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:38:13,087 INFO L93 Difference]: Finished difference Result 655 states and 811 transitions. [2019-10-07 14:38:13,088 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-07 14:38:13,088 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 167 [2019-10-07 14:38:13,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:38:13,093 INFO L225 Difference]: With dead ends: 655 [2019-10-07 14:38:13,093 INFO L226 Difference]: Without dead ends: 652 [2019-10-07 14:38:13,094 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-07 14:38:13,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 652 states. [2019-10-07 14:38:13,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 652 to 652. [2019-10-07 14:38:13,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 652 states. [2019-10-07 14:38:13,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 652 states to 652 states and 806 transitions. [2019-10-07 14:38:13,131 INFO L78 Accepts]: Start accepts. Automaton has 652 states and 806 transitions. Word has length 167 [2019-10-07 14:38:13,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:38:13,132 INFO L462 AbstractCegarLoop]: Abstraction has 652 states and 806 transitions. [2019-10-07 14:38:13,132 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-07 14:38:13,132 INFO L276 IsEmpty]: Start isEmpty. Operand 652 states and 806 transitions. [2019-10-07 14:38:13,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2019-10-07 14:38:13,135 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:38:13,135 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:38:13,136 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:38:13,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:38:13,136 INFO L82 PathProgramCache]: Analyzing trace with hash -468017508, now seen corresponding path program 1 times [2019-10-07 14:38:13,137 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:38:13,137 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:38:13,137 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:38:13,137 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:38:13,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:38:13,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:38:13,957 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 14:38:13,957 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:38:13,957 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:38:13,958 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 14:38:14,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:38:14,536 INFO L256 TraceCheckSpWp]: Trace formula consists of 2758 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:38:14,630 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:38:14,765 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 14:38:14,766 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:38:15,051 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 14:38:15,052 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 14:38:15,097 INFO L162 IcfgInterpreter]: Started Sifa with 154 locations of interest [2019-10-07 14:38:15,098 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 14:38:15,110 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 14:38:15,119 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 14:38:15,120 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 14:38:59,141 WARN L191 SmtUtils]: Spent 405.00 ms on a formula simplification that was a NOOP. DAG size: 663 [2019-10-07 14:39:03,020 WARN L191 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 314 DAG size of output: 255 [2019-10-07 14:39:03,400 WARN L191 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 708 [2019-10-07 14:39:03,757 WARN L191 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 708 [2019-10-07 14:39:04,052 WARN L191 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 708 [2019-10-07 14:39:04,240 WARN L191 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:39:04,904 WARN L191 SmtUtils]: Spent 661.00 ms on a formula simplification that was a NOOP. DAG size: 1000 [2019-10-07 14:39:05,550 WARN L191 SmtUtils]: Spent 629.00 ms on a formula simplification that was a NOOP. DAG size: 1000 [2019-10-07 14:39:06,225 WARN L191 SmtUtils]: Spent 671.00 ms on a formula simplification that was a NOOP. DAG size: 1000 [2019-10-07 14:39:06,381 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:39:06,968 WARN L191 SmtUtils]: Spent 585.00 ms on a formula simplification that was a NOOP. DAG size: 1000 [2019-10-07 14:39:08,230 WARN L191 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 1002 DAG size of output: 1000 [2019-10-07 14:39:08,818 WARN L191 SmtUtils]: Spent 583.00 ms on a formula simplification that was a NOOP. DAG size: 1000 [2019-10-07 14:39:08,959 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:39:09,569 WARN L191 SmtUtils]: Spent 607.00 ms on a formula simplification that was a NOOP. DAG size: 1000 [2019-10-07 14:39:10,181 WARN L191 SmtUtils]: Spent 609.00 ms on a formula simplification that was a NOOP. DAG size: 1000 [2019-10-07 14:39:10,774 WARN L191 SmtUtils]: Spent 589.00 ms on a formula simplification that was a NOOP. DAG size: 1000 [2019-10-07 14:39:10,889 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:39:11,457 WARN L191 SmtUtils]: Spent 566.00 ms on a formula simplification that was a NOOP. DAG size: 1000 [2019-10-07 14:39:11,484 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 547 for LOIs [2019-10-07 14:39:11,851 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 631 [2019-10-07 14:39:12,065 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:39:12,489 WARN L191 SmtUtils]: Spent 422.00 ms on a formula simplification that was a NOOP. DAG size: 923 [2019-10-07 14:39:12,491 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1054 for LOIs [2019-10-07 14:39:13,085 WARN L191 SmtUtils]: Spent 593.00 ms on a formula simplification that was a NOOP. DAG size: 1054 [2019-10-07 14:39:13,681 WARN L191 SmtUtils]: Spent 592.00 ms on a formula simplification that was a NOOP. DAG size: 1054 [2019-10-07 14:39:13,913 WARN L191 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 618 [2019-10-07 14:39:14,826 WARN L191 SmtUtils]: Spent 911.00 ms on a formula simplification that was a NOOP. DAG size: 1236 [2019-10-07 14:39:15,433 WARN L191 SmtUtils]: Spent 595.00 ms on a formula simplification that was a NOOP. DAG size: 1054 [2019-10-07 14:39:16,004 WARN L191 SmtUtils]: Spent 567.00 ms on a formula simplification that was a NOOP. DAG size: 1054 [2019-10-07 14:39:16,235 WARN L191 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 618 [2019-10-07 14:39:17,151 WARN L191 SmtUtils]: Spent 914.00 ms on a formula simplification that was a NOOP. DAG size: 1236 [2019-10-07 14:39:17,825 WARN L191 SmtUtils]: Spent 634.00 ms on a formula simplification that was a NOOP. DAG size: 1054 [2019-10-07 14:39:18,407 WARN L191 SmtUtils]: Spent 578.00 ms on a formula simplification that was a NOOP. DAG size: 1054 [2019-10-07 14:39:18,637 WARN L191 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 618 [2019-10-07 14:39:19,527 WARN L191 SmtUtils]: Spent 888.00 ms on a formula simplification that was a NOOP. DAG size: 1236 [2019-10-07 14:39:20,517 WARN L191 SmtUtils]: Spent 960.00 ms on a formula simplification. DAG size of input: 1238 DAG size of output: 1054 [2019-10-07 14:39:21,059 WARN L191 SmtUtils]: Spent 537.00 ms on a formula simplification that was a NOOP. DAG size: 1054 [2019-10-07 14:39:21,502 WARN L191 SmtUtils]: Spent 425.00 ms on a formula simplification that was a NOOP. DAG size: 618 [2019-10-07 14:39:22,448 WARN L191 SmtUtils]: Spent 943.00 ms on a formula simplification that was a NOOP. DAG size: 1236 [2019-10-07 14:39:23,033 WARN L191 SmtUtils]: Spent 563.00 ms on a formula simplification that was a NOOP. DAG size: 1054 [2019-10-07 14:39:23,576 WARN L191 SmtUtils]: Spent 539.00 ms on a formula simplification that was a NOOP. DAG size: 1054 [2019-10-07 14:39:23,795 WARN L191 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 618 [2019-10-07 14:39:24,688 WARN L191 SmtUtils]: Spent 891.00 ms on a formula simplification that was a NOOP. DAG size: 1236 [2019-10-07 14:39:25,257 WARN L191 SmtUtils]: Spent 566.00 ms on a formula simplification that was a NOOP. DAG size: 1054 [2019-10-07 14:39:25,797 WARN L191 SmtUtils]: Spent 537.00 ms on a formula simplification that was a NOOP. DAG size: 1054 [2019-10-07 14:39:26,028 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 618 [2019-10-07 14:39:26,928 WARN L191 SmtUtils]: Spent 898.00 ms on a formula simplification that was a NOOP. DAG size: 1236 [2019-10-07 14:39:27,501 WARN L191 SmtUtils]: Spent 571.00 ms on a formula simplification that was a NOOP. DAG size: 1054 [2019-10-07 14:39:28,073 WARN L191 SmtUtils]: Spent 568.00 ms on a formula simplification that was a NOOP. DAG size: 1054 [2019-10-07 14:39:28,296 WARN L191 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 618 [2019-10-07 14:39:29,200 WARN L191 SmtUtils]: Spent 902.00 ms on a formula simplification that was a NOOP. DAG size: 1236 [2019-10-07 14:39:29,758 WARN L191 SmtUtils]: Spent 555.00 ms on a formula simplification that was a NOOP. DAG size: 1054 [2019-10-07 14:39:30,316 WARN L191 SmtUtils]: Spent 554.00 ms on a formula simplification that was a NOOP. DAG size: 1054 [2019-10-07 14:39:30,538 WARN L191 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 618 [2019-10-07 14:39:31,454 WARN L191 SmtUtils]: Spent 913.00 ms on a formula simplification that was a NOOP. DAG size: 1236 [2019-10-07 14:39:32,004 WARN L191 SmtUtils]: Spent 546.00 ms on a formula simplification that was a NOOP. DAG size: 1054 [2019-10-07 14:39:32,565 WARN L191 SmtUtils]: Spent 558.00 ms on a formula simplification that was a NOOP. DAG size: 1054 [2019-10-07 14:39:32,789 WARN L191 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 618 [2019-10-07 14:39:33,674 WARN L191 SmtUtils]: Spent 883.00 ms on a formula simplification that was a NOOP. DAG size: 1236 [2019-10-07 14:39:34,220 WARN L191 SmtUtils]: Spent 544.00 ms on a formula simplification that was a NOOP. DAG size: 1054 [2019-10-07 14:39:34,780 WARN L191 SmtUtils]: Spent 557.00 ms on a formula simplification that was a NOOP. DAG size: 1054 [2019-10-07 14:39:34,999 WARN L191 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 618 [2019-10-07 14:39:35,893 WARN L191 SmtUtils]: Spent 892.00 ms on a formula simplification that was a NOOP. DAG size: 1236 [2019-10-07 14:39:36,436 WARN L191 SmtUtils]: Spent 540.00 ms on a formula simplification that was a NOOP. DAG size: 1054 [2019-10-07 14:39:36,975 WARN L191 SmtUtils]: Spent 535.00 ms on a formula simplification that was a NOOP. DAG size: 1054 [2019-10-07 14:39:37,191 WARN L191 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 618 [2019-10-07 14:39:38,065 WARN L191 SmtUtils]: Spent 872.00 ms on a formula simplification that was a NOOP. DAG size: 1236 [2019-10-07 14:39:38,610 WARN L191 SmtUtils]: Spent 542.00 ms on a formula simplification that was a NOOP. DAG size: 1054 [2019-10-07 14:39:39,150 WARN L191 SmtUtils]: Spent 536.00 ms on a formula simplification that was a NOOP. DAG size: 1054 [2019-10-07 14:39:39,369 WARN L191 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 618 [2019-10-07 14:39:40,242 WARN L191 SmtUtils]: Spent 871.00 ms on a formula simplification that was a NOOP. DAG size: 1236 [2019-10-07 14:39:40,788 WARN L191 SmtUtils]: Spent 542.00 ms on a formula simplification that was a NOOP. DAG size: 1054 [2019-10-07 14:39:41,328 WARN L191 SmtUtils]: Spent 537.00 ms on a formula simplification that was a NOOP. DAG size: 1054 [2019-10-07 14:39:41,550 WARN L191 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 618 [2019-10-07 14:39:42,431 WARN L191 SmtUtils]: Spent 878.00 ms on a formula simplification that was a NOOP. DAG size: 1236 [2019-10-07 14:39:43,422 WARN L191 SmtUtils]: Spent 940.00 ms on a formula simplification that was a NOOP. DAG size: 1236 [2019-10-07 14:39:44,304 WARN L191 SmtUtils]: Spent 878.00 ms on a formula simplification that was a NOOP. DAG size: 1236 [2019-10-07 14:39:44,678 WARN L191 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 618 [2019-10-07 14:39:45,552 WARN L191 SmtUtils]: Spent 872.00 ms on a formula simplification that was a NOOP. DAG size: 1236 [2019-10-07 14:39:47,216 WARN L191 SmtUtils]: Spent 1.65 s on a formula simplification. DAG size of input: 1238 DAG size of output: 1236 [2019-10-07 14:39:48,091 WARN L191 SmtUtils]: Spent 872.00 ms on a formula simplification that was a NOOP. DAG size: 1236 [2019-10-07 14:39:48,332 WARN L191 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 618 [2019-10-07 14:39:49,214 WARN L191 SmtUtils]: Spent 880.00 ms on a formula simplification that was a NOOP. DAG size: 1236 [2019-10-07 14:39:50,088 WARN L191 SmtUtils]: Spent 871.00 ms on a formula simplification that was a NOOP. DAG size: 1236 [2019-10-07 14:39:50,970 WARN L191 SmtUtils]: Spent 878.00 ms on a formula simplification that was a NOOP. DAG size: 1236 [2019-10-07 14:39:51,190 WARN L191 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 618 [2019-10-07 14:39:52,093 WARN L191 SmtUtils]: Spent 901.00 ms on a formula simplification that was a NOOP. DAG size: 1236 [2019-10-07 14:39:53,063 WARN L191 SmtUtils]: Spent 931.00 ms on a formula simplification that was a NOOP. DAG size: 1240 [2019-10-07 14:39:53,987 WARN L191 SmtUtils]: Spent 920.00 ms on a formula simplification that was a NOOP. DAG size: 1240 [2019-10-07 14:39:54,227 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 621 [2019-10-07 14:39:55,140 WARN L191 SmtUtils]: Spent 910.00 ms on a formula simplification that was a NOOP. DAG size: 1240 [2019-10-07 14:39:56,803 WARN L191 SmtUtils]: Spent 1.64 s on a formula simplification. DAG size of input: 1242 DAG size of output: 1240 [2019-10-07 14:39:57,705 WARN L191 SmtUtils]: Spent 897.00 ms on a formula simplification that was a NOOP. DAG size: 1240 [2019-10-07 14:39:57,946 WARN L191 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 621 [2019-10-07 14:39:58,868 WARN L191 SmtUtils]: Spent 919.00 ms on a formula simplification that was a NOOP. DAG size: 1240 [2019-10-07 14:40:00,523 WARN L191 SmtUtils]: Spent 1.65 s on a formula simplification. DAG size of input: 1242 DAG size of output: 1240 [2019-10-07 14:40:01,431 WARN L191 SmtUtils]: Spent 903.00 ms on a formula simplification that was a NOOP. DAG size: 1240 [2019-10-07 14:40:01,666 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 621 [2019-10-07 14:40:02,598 WARN L191 SmtUtils]: Spent 929.00 ms on a formula simplification that was a NOOP. DAG size: 1240 [2019-10-07 14:40:03,513 WARN L191 SmtUtils]: Spent 908.00 ms on a formula simplification that was a NOOP. DAG size: 1238 [2019-10-07 14:40:04,436 WARN L191 SmtUtils]: Spent 919.00 ms on a formula simplification that was a NOOP. DAG size: 1238 [2019-10-07 14:40:04,670 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 621 [2019-10-07 14:40:05,570 WARN L191 SmtUtils]: Spent 897.00 ms on a formula simplification that was a NOOP. DAG size: 1240 [2019-10-07 14:40:06,458 WARN L191 SmtUtils]: Spent 884.00 ms on a formula simplification that was a NOOP. DAG size: 1240 [2019-10-07 14:40:07,368 WARN L191 SmtUtils]: Spent 906.00 ms on a formula simplification that was a NOOP. DAG size: 1240 [2019-10-07 14:40:07,602 WARN L191 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 621 [2019-10-07 14:40:08,503 WARN L191 SmtUtils]: Spent 899.00 ms on a formula simplification that was a NOOP. DAG size: 1242 [2019-10-07 14:40:11,000 WARN L191 SmtUtils]: Spent 2.44 s on a formula simplification. DAG size of input: 1238 DAG size of output: 1236 [2019-10-07 14:40:11,891 WARN L191 SmtUtils]: Spent 887.00 ms on a formula simplification that was a NOOP. DAG size: 1236 [2019-10-07 14:40:12,127 WARN L191 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 618 [2019-10-07 14:40:13,025 WARN L191 SmtUtils]: Spent 896.00 ms on a formula simplification that was a NOOP. DAG size: 1236 [2019-10-07 14:40:15,545 WARN L191 SmtUtils]: Spent 2.51 s on a formula simplification. DAG size of input: 1238 DAG size of output: 1236 [2019-10-07 14:40:16,424 WARN L191 SmtUtils]: Spent 875.00 ms on a formula simplification that was a NOOP. DAG size: 1236 [2019-10-07 14:40:16,683 WARN L191 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 618 [2019-10-07 14:40:17,543 WARN L191 SmtUtils]: Spent 857.00 ms on a formula simplification that was a NOOP. DAG size: 1236 [2019-10-07 14:40:18,404 WARN L191 SmtUtils]: Spent 858.00 ms on a formula simplification that was a NOOP. DAG size: 1236 [2019-10-07 14:40:19,272 WARN L191 SmtUtils]: Spent 864.00 ms on a formula simplification that was a NOOP. DAG size: 1236 [2019-10-07 14:40:19,493 WARN L191 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 618 [2019-10-07 14:40:20,351 WARN L191 SmtUtils]: Spent 855.00 ms on a formula simplification that was a NOOP. DAG size: 1236 [2019-10-07 14:40:21,938 WARN L191 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 1238 DAG size of output: 1236 [2019-10-07 14:40:22,796 WARN L191 SmtUtils]: Spent 855.00 ms on a formula simplification that was a NOOP. DAG size: 1236 [2019-10-07 14:40:23,024 WARN L191 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 618 [2019-10-07 14:40:23,893 WARN L191 SmtUtils]: Spent 868.00 ms on a formula simplification that was a NOOP. DAG size: 1236 [2019-10-07 14:40:25,474 WARN L191 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 1238 DAG size of output: 1236 [2019-10-07 14:40:26,336 WARN L191 SmtUtils]: Spent 859.00 ms on a formula simplification that was a NOOP. DAG size: 1236 [2019-10-07 14:40:26,566 WARN L191 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 618 [2019-10-07 14:40:27,426 WARN L191 SmtUtils]: Spent 858.00 ms on a formula simplification that was a NOOP. DAG size: 1236 [2019-10-07 14:40:28,285 WARN L191 SmtUtils]: Spent 856.00 ms on a formula simplification that was a NOOP. DAG size: 1236 [2019-10-07 14:40:29,146 WARN L191 SmtUtils]: Spent 858.00 ms on a formula simplification that was a NOOP. DAG size: 1236 [2019-10-07 14:40:29,373 WARN L191 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 618 [2019-10-07 14:40:30,239 WARN L191 SmtUtils]: Spent 864.00 ms on a formula simplification that was a NOOP. DAG size: 1236 [2019-10-07 14:40:31,832 WARN L191 SmtUtils]: Spent 1.56 s on a formula simplification. DAG size of input: 1242 DAG size of output: 1240 [2019-10-07 14:40:32,693 WARN L191 SmtUtils]: Spent 858.00 ms on a formula simplification that was a NOOP. DAG size: 1240 [2019-10-07 14:40:32,923 WARN L191 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 621 [2019-10-07 14:40:33,792 WARN L191 SmtUtils]: Spent 867.00 ms on a formula simplification that was a NOOP. DAG size: 1240 [2019-10-07 14:40:35,300 WARN L191 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 1242 DAG size of output: 1238 [2019-10-07 14:40:36,160 WARN L191 SmtUtils]: Spent 856.00 ms on a formula simplification that was a NOOP. DAG size: 1238 [2019-10-07 14:40:36,386 WARN L191 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 621 [2019-10-07 14:40:37,252 WARN L191 SmtUtils]: Spent 864.00 ms on a formula simplification that was a NOOP. DAG size: 1240 [2019-10-07 14:40:38,728 WARN L191 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 1242 DAG size of output: 1238 [2019-10-07 14:40:39,601 WARN L191 SmtUtils]: Spent 870.00 ms on a formula simplification that was a NOOP. DAG size: 1238 [2019-10-07 14:40:39,821 WARN L191 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 621 [2019-10-07 14:40:40,701 WARN L191 SmtUtils]: Spent 878.00 ms on a formula simplification that was a NOOP. DAG size: 1240 [2019-10-07 14:40:42,204 WARN L191 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 1247 DAG size of output: 1240 [2019-10-07 14:40:43,074 WARN L191 SmtUtils]: Spent 867.00 ms on a formula simplification that was a NOOP. DAG size: 1240 [2019-10-07 14:40:43,306 WARN L191 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 621 [2019-10-07 14:40:44,209 WARN L191 SmtUtils]: Spent 901.00 ms on a formula simplification that was a NOOP. DAG size: 1240 [2019-10-07 14:40:45,746 WARN L191 SmtUtils]: Spent 1.53 s on a formula simplification. DAG size of input: 1249 DAG size of output: 1242 [2019-10-07 14:40:46,648 WARN L191 SmtUtils]: Spent 898.00 ms on a formula simplification that was a NOOP. DAG size: 1242 [2019-10-07 14:40:46,881 WARN L191 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 621 [2019-10-07 14:40:47,767 WARN L191 SmtUtils]: Spent 884.00 ms on a formula simplification that was a NOOP. DAG size: 1242 [2019-10-07 14:40:48,034 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:40:48,036 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 14:40:48,042 INFO L168 Benchmark]: Toolchain (without parser) took 172127.19 ms. Allocated memory was 145.2 MB in the beginning and 917.5 MB in the end (delta: 772.3 MB). Free memory was 100.6 MB in the beginning and 37.5 MB in the end (delta: 63.1 MB). Peak memory consumption was 835.4 MB. Max. memory is 7.1 GB. [2019-10-07 14:40:48,043 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 145.2 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-10-07 14:40:48,043 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1058.38 ms. Allocated memory was 145.2 MB in the beginning and 203.9 MB in the end (delta: 58.7 MB). Free memory was 100.4 MB in the beginning and 139.2 MB in the end (delta: -38.8 MB). Peak memory consumption was 29.6 MB. Max. memory is 7.1 GB. [2019-10-07 14:40:48,044 INFO L168 Benchmark]: Boogie Preprocessor took 162.21 ms. Allocated memory is still 203.9 MB. Free memory was 139.2 MB in the beginning and 130.1 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. [2019-10-07 14:40:48,045 INFO L168 Benchmark]: RCFGBuilder took 4828.04 ms. Allocated memory was 203.9 MB in the beginning and 298.3 MB in the end (delta: 94.4 MB). Free memory was 130.1 MB in the beginning and 99.7 MB in the end (delta: 30.4 MB). Peak memory consumption was 124.7 MB. Max. memory is 7.1 GB. [2019-10-07 14:40:48,045 INFO L168 Benchmark]: TraceAbstraction took 166070.78 ms. Allocated memory was 298.3 MB in the beginning and 917.5 MB in the end (delta: 619.2 MB). Free memory was 99.7 MB in the beginning and 37.5 MB in the end (delta: 62.3 MB). Peak memory consumption was 681.4 MB. Max. memory is 7.1 GB. [2019-10-07 14:40:48,048 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 145.2 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1058.38 ms. Allocated memory was 145.2 MB in the beginning and 203.9 MB in the end (delta: 58.7 MB). Free memory was 100.4 MB in the beginning and 139.2 MB in the end (delta: -38.8 MB). Peak memory consumption was 29.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 162.21 ms. Allocated memory is still 203.9 MB. Free memory was 139.2 MB in the beginning and 130.1 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4828.04 ms. Allocated memory was 203.9 MB in the beginning and 298.3 MB in the end (delta: 94.4 MB). Free memory was 130.1 MB in the beginning and 99.7 MB in the end (delta: 30.4 MB). Peak memory consumption was 124.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 166070.78 ms. Allocated memory was 298.3 MB in the beginning and 917.5 MB in the end (delta: 619.2 MB). Free memory was 99.7 MB in the beginning and 37.5 MB in the end (delta: 62.3 MB). Peak memory consumption was 681.4 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...