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_spec4_product27.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 14:57:25,459 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 14:57:25,462 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 14:57:25,474 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 14:57:25,475 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 14:57:25,476 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 14:57:25,477 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 14:57:25,479 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 14:57:25,481 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 14:57:25,482 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 14:57:25,483 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 14:57:25,484 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 14:57:25,484 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 14:57:25,485 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 14:57:25,486 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 14:57:25,487 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 14:57:25,488 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 14:57:25,489 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 14:57:25,491 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 14:57:25,496 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 14:57:25,499 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 14:57:25,503 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 14:57:25,504 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 14:57:25,507 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 14:57:25,509 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 14:57:25,509 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 14:57:25,509 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 14:57:25,510 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 14:57:25,511 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 14:57:25,512 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 14:57:25,512 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 14:57:25,513 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 14:57:25,514 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 14:57:25,515 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 14:57:25,517 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 14:57:25,518 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 14:57:25,519 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 14:57:25,519 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 14:57:25,519 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 14:57:25,520 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 14:57:25,522 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 14:57:25,525 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 14:57:25,541 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 14:57:25,541 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 14:57:25,542 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 14:57:25,543 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 14:57:25,543 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 14:57:25,543 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 14:57:25,543 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 14:57:25,544 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 14:57:25,544 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 14:57:25,544 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 14:57:25,544 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 14:57:25,544 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 14:57:25,545 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 14:57:25,545 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 14:57:25,545 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 14:57:25,545 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 14:57:25,545 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 14:57:25,546 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 14:57:25,546 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 14:57:25,546 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 14:57:25,546 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 14:57:25,546 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:57:25,547 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 14:57:25,547 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 14:57:25,547 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 14:57:25,547 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 14:57:25,547 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 14:57:25,547 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 14:57:25,548 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 14:57:25,873 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 14:57:25,893 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 14:57:25,896 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 14:57:25,897 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 14:57:25,897 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 14:57:25,898 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec4_product27.cil.c [2019-10-07 14:57:25,968 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66247208a/c7da07c08fe748d5b18acf2ea719ef01/FLAGe0add9a78 [2019-10-07 14:57:26,637 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 14:57:26,638 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec4_product27.cil.c [2019-10-07 14:57:26,671 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66247208a/c7da07c08fe748d5b18acf2ea719ef01/FLAGe0add9a78 [2019-10-07 14:57:26,853 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66247208a/c7da07c08fe748d5b18acf2ea719ef01 [2019-10-07 14:57:26,862 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 14:57:26,863 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 14:57:26,864 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 14:57:26,864 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 14:57:26,867 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 14:57:26,868 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:57:26" (1/1) ... [2019-10-07 14:57:26,870 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21180631 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:57:26, skipping insertion in model container [2019-10-07 14:57:26,871 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:57:26" (1/1) ... [2019-10-07 14:57:26,877 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 14:57:26,965 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 14:57:27,741 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:57:27,758 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 14:57:27,887 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:57:27,972 INFO L192 MainTranslator]: Completed translation [2019-10-07 14:57:27,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:57:27 WrapperNode [2019-10-07 14:57:27,973 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 14:57:27,974 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 14:57:27,974 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 14:57:27,974 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 14:57:27,987 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:57:27" (1/1) ... [2019-10-07 14:57:27,987 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:57:27" (1/1) ... [2019-10-07 14:57:28,019 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:57:27" (1/1) ... [2019-10-07 14:57:28,019 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:57:27" (1/1) ... [2019-10-07 14:57:28,076 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:57:27" (1/1) ... [2019-10-07 14:57:28,101 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:57:27" (1/1) ... [2019-10-07 14:57:28,114 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:57:27" (1/1) ... [2019-10-07 14:57:28,148 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 14:57:28,152 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 14:57:28,152 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 14:57:28,153 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 14:57:28,159 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:57:27" (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 14:57:28,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 14:57:28,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 14:57:28,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 14:57:28,240 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 14:57:28,240 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-07 14:57:28,240 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 14:57:28,241 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 14:57:28,241 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 14:57:28,241 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 14:57:28,241 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 14:57:28,242 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-07 14:57:28,242 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-07 14:57:28,242 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-07 14:57:28,242 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-07 14:57:28,243 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-07 14:57:28,243 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-07 14:57:28,243 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-07 14:57:28,243 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-07 14:57:28,243 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-07 14:57:28,245 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-07 14:57:28,245 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-07 14:57:28,245 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-07 14:57:28,245 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-07 14:57:28,246 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-07 14:57:28,246 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-07 14:57:28,246 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-07 14:57:28,246 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-07 14:57:28,246 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-07 14:57:28,247 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-07 14:57:28,247 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-07 14:57:28,247 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-07 14:57:28,247 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-07 14:57:28,248 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-07 14:57:28,248 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-07 14:57:28,248 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-07 14:57:28,248 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-07 14:57:28,248 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-07 14:57:28,249 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-07 14:57:28,249 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-07 14:57:28,249 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-07 14:57:28,249 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-07 14:57:28,249 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-07 14:57:28,249 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-07 14:57:28,250 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-07 14:57:28,250 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-07 14:57:28,250 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-07 14:57:28,250 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-07 14:57:28,250 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-07 14:57:28,250 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-07 14:57:28,250 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-07 14:57:28,251 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-07 14:57:28,251 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-07 14:57:28,251 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-07 14:57:28,251 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-07 14:57:28,251 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-07 14:57:28,251 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-07 14:57:28,251 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-07 14:57:28,252 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-07 14:57:28,252 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-07 14:57:28,252 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-07 14:57:28,253 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-07 14:57:28,253 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-07 14:57:28,253 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-07 14:57:28,253 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-07 14:57:28,253 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-07 14:57:28,253 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-07 14:57:28,254 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 14:57:28,254 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 14:57:28,254 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 14:57:28,254 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 14:57:28,254 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 14:57:28,255 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 14:57:28,255 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-07 14:57:28,256 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-07 14:57:28,256 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-07 14:57:28,256 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-07 14:57:28,257 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-07 14:57:28,257 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-07 14:57:28,257 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-07 14:57:28,257 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-07 14:57:28,259 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 14:57:28,259 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 14:57:28,259 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-07 14:57:28,259 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-07 14:57:28,259 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-07 14:57:28,259 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-07 14:57:28,259 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-07 14:57:28,261 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-07 14:57:28,261 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-07 14:57:28,261 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-07 14:57:28,261 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-07 14:57:28,261 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-07 14:57:28,261 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-07 14:57:28,261 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-07 14:57:28,262 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-07 14:57:28,262 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-07 14:57:28,262 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-07 14:57:28,262 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-07 14:57:28,262 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-07 14:57:28,262 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Keys [2019-10-07 14:57:28,263 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-07 14:57:28,263 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-07 14:57:28,263 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-07 14:57:28,263 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-07 14:57:28,263 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-07 14:57:28,263 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-07 14:57:28,263 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-07 14:57:28,264 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-07 14:57:28,264 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-07 14:57:28,264 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-07 14:57:28,264 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-07 14:57:28,264 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-07 14:57:28,264 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-07 14:57:28,264 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-07 14:57:28,265 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-07 14:57:28,265 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-07 14:57:28,265 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignForward_spec__1 [2019-10-07 14:57:28,266 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 14:57:28,266 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 14:57:28,266 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 14:57:28,266 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 14:57:28,267 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-07 14:57:28,267 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 14:57:28,267 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-07 14:57:28,268 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-07 14:57:28,268 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-07 14:57:28,269 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-07 14:57:28,269 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-07 14:57:28,269 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-07 14:57:28,269 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-07 14:57:28,269 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-07 14:57:28,270 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-07 14:57:28,270 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-07 14:57:28,271 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-07 14:57:28,274 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 14:57:28,275 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 14:57:28,275 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 14:57:28,275 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 14:57:28,275 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 14:57:28,275 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-07 14:57:28,276 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-07 14:57:28,276 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-07 14:57:28,276 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-07 14:57:28,276 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-07 14:57:28,284 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-07 14:57:28,285 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-07 14:57:28,285 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-07 14:57:28,285 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-07 14:57:28,285 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-07 14:57:28,285 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-07 14:57:28,285 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-07 14:57:28,285 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-07 14:57:28,285 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-07 14:57:28,286 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-07 14:57:28,286 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-07 14:57:28,286 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-07 14:57:28,286 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-07 14:57:28,287 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-07 14:57:28,287 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-07 14:57:28,287 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-07 14:57:28,288 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-07 14:57:28,288 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-07 14:57:28,288 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-07 14:57:28,288 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-07 14:57:28,288 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-07 14:57:28,288 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-07 14:57:28,288 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-07 14:57:28,288 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-07 14:57:28,289 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-07 14:57:28,289 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-07 14:57:28,289 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-07 14:57:28,289 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-07 14:57:28,289 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-07 14:57:28,289 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-07 14:57:28,289 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-07 14:57:28,290 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-07 14:57:28,290 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-07 14:57:28,290 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-07 14:57:28,290 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-07 14:57:28,290 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-07 14:57:28,290 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-07 14:57:28,290 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-07 14:57:28,291 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-07 14:57:28,291 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-07 14:57:28,291 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-07 14:57:28,291 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-07 14:57:28,291 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-07 14:57:28,292 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-07 14:57:28,292 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-07 14:57:28,292 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-07 14:57:28,292 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-07 14:57:28,292 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-07 14:57:28,292 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-07 14:57:28,292 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-07 14:57:28,293 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-07 14:57:28,293 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 14:57:28,293 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 14:57:28,293 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 14:57:28,293 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 14:57:28,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 14:57:28,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 14:57:28,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 14:57:28,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 14:57:28,294 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 14:57:28,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 14:57:28,294 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 14:57:28,294 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 14:57:28,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 14:57:28,296 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 14:57:28,296 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 14:57:28,297 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 14:57:28,297 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-07 14:57:28,297 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-07 14:57:28,297 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-07 14:57:28,297 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-07 14:57:28,297 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-07 14:57:28,298 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-07 14:57:28,298 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-07 14:57:28,298 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-07 14:57:28,298 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-07 14:57:28,298 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-07 14:57:28,299 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-07 14:57:28,299 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 14:57:28,299 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 14:57:28,299 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-07 14:57:28,299 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-07 14:57:28,299 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-07 14:57:28,300 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-07 14:57:28,300 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-07 14:57:28,300 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-07 14:57:28,300 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-07 14:57:28,300 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-07 14:57:28,300 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-07 14:57:28,301 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-07 14:57:28,301 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-07 14:57:28,301 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-07 14:57:28,301 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-07 14:57:28,301 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-07 14:57:28,301 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-07 14:57:28,302 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-07 14:57:28,302 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignForward_spec__1 [2019-10-07 14:57:28,302 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-07 14:57:28,302 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-07 14:57:28,302 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Keys [2019-10-07 14:57:28,303 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-07 14:57:28,303 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-07 14:57:28,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 14:57:28,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 14:57:28,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 14:57:32,936 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 14:57:32,936 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-07 14:57:32,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:57:32 BoogieIcfgContainer [2019-10-07 14:57:32,938 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 14:57:32,940 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 14:57:32,940 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 14:57:32,943 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 14:57:32,943 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 02:57:26" (1/3) ... [2019-10-07 14:57:32,944 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f1786c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:57:32, skipping insertion in model container [2019-10-07 14:57:32,944 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:57:27" (2/3) ... [2019-10-07 14:57:32,945 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f1786c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:57:32, skipping insertion in model container [2019-10-07 14:57:32,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:57:32" (3/3) ... [2019-10-07 14:57:32,947 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec4_product27.cil.c [2019-10-07 14:57:32,957 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 14:57:32,966 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 14:57:32,978 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 14:57:33,018 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 14:57:33,019 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 14:57:33,019 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 14:57:33,019 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 14:57:33,019 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 14:57:33,019 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 14:57:33,019 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 14:57:33,022 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 14:57:33,061 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states. [2019-10-07 14:57:33,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2019-10-07 14:57:33,093 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:57:33,094 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:57:33,097 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:57:33,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:57:33,104 INFO L82 PathProgramCache]: Analyzing trace with hash 1316750710, now seen corresponding path program 1 times [2019-10-07 14:57:33,113 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:57:33,114 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:57:33,114 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:57:33,114 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:57:33,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:57:33,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:57:33,826 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 14:57:33,827 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:57:33,828 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:57:33,828 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 14:57:33,835 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 14:57:33,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 14:57:33,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 14:57:33,852 INFO L87 Difference]: Start difference. First operand 428 states. Second operand 2 states. [2019-10-07 14:57:33,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:57:33,921 INFO L93 Difference]: Finished difference Result 631 states and 744 transitions. [2019-10-07 14:57:33,921 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 14:57:33,923 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 125 [2019-10-07 14:57:33,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:57:33,958 INFO L225 Difference]: With dead ends: 631 [2019-10-07 14:57:33,958 INFO L226 Difference]: Without dead ends: 401 [2019-10-07 14:57:33,971 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 14:57:33,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2019-10-07 14:57:34,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 401. [2019-10-07 14:57:34,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 401 states. [2019-10-07 14:57:34,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 470 transitions. [2019-10-07 14:57:34,107 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 470 transitions. Word has length 125 [2019-10-07 14:57:34,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:57:34,111 INFO L462 AbstractCegarLoop]: Abstraction has 401 states and 470 transitions. [2019-10-07 14:57:34,111 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 14:57:34,111 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 470 transitions. [2019-10-07 14:57:34,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2019-10-07 14:57:34,117 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:57:34,117 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:57:34,118 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:57:34,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:57:34,119 INFO L82 PathProgramCache]: Analyzing trace with hash 1915856598, now seen corresponding path program 1 times [2019-10-07 14:57:34,119 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:57:34,119 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:57:34,119 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:57:34,120 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:57:34,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:57:34,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:57:34,400 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 14:57:34,401 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:57:34,401 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:57:34,402 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:57:34,409 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:57:34,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:57:34,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:57:34,410 INFO L87 Difference]: Start difference. First operand 401 states and 470 transitions. Second operand 3 states. [2019-10-07 14:57:34,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:57:34,477 INFO L93 Difference]: Finished difference Result 616 states and 713 transitions. [2019-10-07 14:57:34,477 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:57:34,478 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 126 [2019-10-07 14:57:34,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:57:34,483 INFO L225 Difference]: With dead ends: 616 [2019-10-07 14:57:34,483 INFO L226 Difference]: Without dead ends: 403 [2019-10-07 14:57:34,486 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 14:57:34,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2019-10-07 14:57:34,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 403. [2019-10-07 14:57:34,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 403 states. [2019-10-07 14:57:34,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 472 transitions. [2019-10-07 14:57:34,521 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 472 transitions. Word has length 126 [2019-10-07 14:57:34,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:57:34,522 INFO L462 AbstractCegarLoop]: Abstraction has 403 states and 472 transitions. [2019-10-07 14:57:34,522 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:57:34,522 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 472 transitions. [2019-10-07 14:57:34,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2019-10-07 14:57:34,531 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:57:34,532 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] [2019-10-07 14:57:34,532 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:57:34,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:57:34,532 INFO L82 PathProgramCache]: Analyzing trace with hash 1631421489, now seen corresponding path program 1 times [2019-10-07 14:57:34,533 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:57:34,533 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:57:34,533 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:57:34,533 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:57:34,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:57:34,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:57:34,748 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 14:57:34,749 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:57:34,749 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:57:34,749 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:57:34,751 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:57:34,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:57:34,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:57:34,752 INFO L87 Difference]: Start difference. First operand 403 states and 472 transitions. Second operand 3 states. [2019-10-07 14:57:34,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:57:34,795 INFO L93 Difference]: Finished difference Result 792 states and 957 transitions. [2019-10-07 14:57:34,795 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:57:34,795 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 138 [2019-10-07 14:57:34,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:57:34,799 INFO L225 Difference]: With dead ends: 792 [2019-10-07 14:57:34,799 INFO L226 Difference]: Without dead ends: 447 [2019-10-07 14:57:34,801 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 14:57:34,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2019-10-07 14:57:34,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 446. [2019-10-07 14:57:34,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 446 states. [2019-10-07 14:57:34,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 546 transitions. [2019-10-07 14:57:34,821 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 546 transitions. Word has length 138 [2019-10-07 14:57:34,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:57:34,822 INFO L462 AbstractCegarLoop]: Abstraction has 446 states and 546 transitions. [2019-10-07 14:57:34,822 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:57:34,822 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 546 transitions. [2019-10-07 14:57:34,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2019-10-07 14:57:34,825 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:57:34,825 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] [2019-10-07 14:57:34,825 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:57:34,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:57:34,826 INFO L82 PathProgramCache]: Analyzing trace with hash -1482362282, now seen corresponding path program 1 times [2019-10-07 14:57:34,826 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:57:34,826 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:57:34,827 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:57:34,827 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:57:34,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:57:34,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:57:35,466 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 14:57:35,466 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:57:35,467 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:57:35,467 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2019-10-07 14:57:35,467 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2019-10-07 14:57:35,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2019-10-07 14:57:35,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2019-10-07 14:57:35,469 INFO L87 Difference]: Start difference. First operand 446 states and 546 transitions. Second operand 21 states. [2019-10-07 14:57:44,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:57:44,223 INFO L93 Difference]: Finished difference Result 898 states and 1073 transitions. [2019-10-07 14:57:44,224 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-10-07 14:57:44,224 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 139 [2019-10-07 14:57:44,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:57:44,231 INFO L225 Difference]: With dead ends: 898 [2019-10-07 14:57:44,232 INFO L226 Difference]: Without dead ends: 691 [2019-10-07 14:57:44,236 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=195, Invalid=1527, Unknown=0, NotChecked=0, Total=1722 [2019-10-07 14:57:44,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2019-10-07 14:57:44,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 682. [2019-10-07 14:57:44,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 682 states. [2019-10-07 14:57:44,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 682 states to 682 states and 824 transitions. [2019-10-07 14:57:44,305 INFO L78 Accepts]: Start accepts. Automaton has 682 states and 824 transitions. Word has length 139 [2019-10-07 14:57:44,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:57:44,306 INFO L462 AbstractCegarLoop]: Abstraction has 682 states and 824 transitions. [2019-10-07 14:57:44,306 INFO L463 AbstractCegarLoop]: Interpolant automaton has 21 states. [2019-10-07 14:57:44,306 INFO L276 IsEmpty]: Start isEmpty. Operand 682 states and 824 transitions. [2019-10-07 14:57:44,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2019-10-07 14:57:44,310 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:57:44,310 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] [2019-10-07 14:57:44,310 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:57:44,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:57:44,311 INFO L82 PathProgramCache]: Analyzing trace with hash 1753159880, now seen corresponding path program 1 times [2019-10-07 14:57:44,311 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:57:44,311 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:57:44,311 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:57:44,312 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:57:44,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:57:44,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:57:44,967 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 14:57:44,967 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:57:44,967 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:57:44,968 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2019-10-07 14:57:44,968 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2019-10-07 14:57:44,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2019-10-07 14:57:44,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=453, Unknown=0, NotChecked=0, Total=506 [2019-10-07 14:57:44,969 INFO L87 Difference]: Start difference. First operand 682 states and 824 transitions. Second operand 23 states. [2019-10-07 14:57:46,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:57:46,792 INFO L93 Difference]: Finished difference Result 760 states and 910 transitions. [2019-10-07 14:57:46,792 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2019-10-07 14:57:46,793 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 145 [2019-10-07 14:57:46,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:57:46,798 INFO L225 Difference]: With dead ends: 760 [2019-10-07 14:57:46,798 INFO L226 Difference]: Without dead ends: 753 [2019-10-07 14:57:46,800 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 369 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=213, Invalid=1949, Unknown=0, NotChecked=0, Total=2162 [2019-10-07 14:57:46,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 753 states. [2019-10-07 14:57:46,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 753 to 746. [2019-10-07 14:57:46,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 746 states. [2019-10-07 14:57:46,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 746 states to 746 states and 895 transitions. [2019-10-07 14:57:46,845 INFO L78 Accepts]: Start accepts. Automaton has 746 states and 895 transitions. Word has length 145 [2019-10-07 14:57:46,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:57:46,845 INFO L462 AbstractCegarLoop]: Abstraction has 746 states and 895 transitions. [2019-10-07 14:57:46,846 INFO L463 AbstractCegarLoop]: Interpolant automaton has 23 states. [2019-10-07 14:57:46,846 INFO L276 IsEmpty]: Start isEmpty. Operand 746 states and 895 transitions. [2019-10-07 14:57:46,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2019-10-07 14:57:46,851 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:57:46,852 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:57:46,852 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:57:46,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:57:46,853 INFO L82 PathProgramCache]: Analyzing trace with hash 483975670, now seen corresponding path program 1 times [2019-10-07 14:57:46,853 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:57:46,853 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:57:46,853 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:57:46,853 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:57:46,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:57:46,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:57:47,144 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-07 14:57:47,144 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:57:47,145 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:57:47,145 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-07 14:57:47,146 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-07 14:57:47,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-07 14:57:47,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:57:47,146 INFO L87 Difference]: Start difference. First operand 746 states and 895 transitions. Second operand 8 states. [2019-10-07 14:57:47,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:57:47,207 INFO L93 Difference]: Finished difference Result 1213 states and 1439 transitions. [2019-10-07 14:57:47,207 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-07 14:57:47,208 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 243 [2019-10-07 14:57:47,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:57:47,214 INFO L225 Difference]: With dead ends: 1213 [2019-10-07 14:57:47,214 INFO L226 Difference]: Without dead ends: 746 [2019-10-07 14:57:47,216 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:57:47,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2019-10-07 14:57:47,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 746. [2019-10-07 14:57:47,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 746 states. [2019-10-07 14:57:47,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 746 states to 746 states and 893 transitions. [2019-10-07 14:57:47,267 INFO L78 Accepts]: Start accepts. Automaton has 746 states and 893 transitions. Word has length 243 [2019-10-07 14:57:47,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:57:47,271 INFO L462 AbstractCegarLoop]: Abstraction has 746 states and 893 transitions. [2019-10-07 14:57:47,271 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-07 14:57:47,271 INFO L276 IsEmpty]: Start isEmpty. Operand 746 states and 893 transitions. [2019-10-07 14:57:47,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2019-10-07 14:57:47,277 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:57:47,278 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:57:47,278 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:57:47,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:57:47,278 INFO L82 PathProgramCache]: Analyzing trace with hash 131809285, now seen corresponding path program 1 times [2019-10-07 14:57:47,279 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:57:47,279 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:57:47,279 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:57:47,279 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:57:47,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:57:47,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:57:47,609 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-10-07 14:57:47,609 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:57:47,609 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:57:47,610 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-07 14:57:47,610 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-07 14:57:47,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-07 14:57:47,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2019-10-07 14:57:47,611 INFO L87 Difference]: Start difference. First operand 746 states and 893 transitions. Second operand 11 states. [2019-10-07 14:57:50,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:57:50,495 INFO L93 Difference]: Finished difference Result 1492 states and 1744 transitions. [2019-10-07 14:57:50,496 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-07 14:57:50,496 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 248 [2019-10-07 14:57:50,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:57:50,504 INFO L225 Difference]: With dead ends: 1492 [2019-10-07 14:57:50,504 INFO L226 Difference]: Without dead ends: 1097 [2019-10-07 14:57:50,506 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2019-10-07 14:57:50,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1097 states. [2019-10-07 14:57:50,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1097 to 1069. [2019-10-07 14:57:50,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1069 states. [2019-10-07 14:57:50,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1069 states to 1069 states and 1259 transitions. [2019-10-07 14:57:50,563 INFO L78 Accepts]: Start accepts. Automaton has 1069 states and 1259 transitions. Word has length 248 [2019-10-07 14:57:50,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:57:50,564 INFO L462 AbstractCegarLoop]: Abstraction has 1069 states and 1259 transitions. [2019-10-07 14:57:50,564 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-07 14:57:50,564 INFO L276 IsEmpty]: Start isEmpty. Operand 1069 states and 1259 transitions. [2019-10-07 14:57:50,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2019-10-07 14:57:50,570 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:57:50,571 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:57:50,571 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:57:50,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:57:50,572 INFO L82 PathProgramCache]: Analyzing trace with hash 1267936086, now seen corresponding path program 1 times [2019-10-07 14:57:50,572 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:57:50,572 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:57:50,572 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:57:50,572 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:57:50,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:57:50,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:57:51,734 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 9 proven. 12 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-10-07 14:57:51,734 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:57:51,735 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:57:51,735 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 14:57:52,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:57:52,376 INFO L256 TraceCheckSpWp]: Trace formula consists of 3324 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:57:52,398 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:57:52,581 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2019-10-07 14:57:52,581 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:57:53,289 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-10-07 14:57:53,290 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 14:57:53,323 INFO L162 IcfgInterpreter]: Started Sifa with 210 locations of interest [2019-10-07 14:57:53,323 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 14:57:53,329 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 14:57:53,336 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 14:57:53,337 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 14:58:54,438 WARN L191 SmtUtils]: Spent 414.00 ms on a formula simplification that was a NOOP. DAG size: 687 [2019-10-07 14:58:58,327 WARN L191 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 306 DAG size of output: 249 [2019-10-07 14:58:58,704 WARN L191 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 726 [2019-10-07 14:58:59,005 WARN L191 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 726 [2019-10-07 14:58:59,244 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 726 [2019-10-07 14:58:59,408 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 447 [2019-10-07 14:59:00,074 WARN L191 SmtUtils]: Spent 664.00 ms on a formula simplification that was a NOOP. DAG size: 1022 [2019-10-07 14:59:00,803 WARN L191 SmtUtils]: Spent 711.00 ms on a formula simplification that was a NOOP. DAG size: 1022 [2019-10-07 14:59:01,442 WARN L191 SmtUtils]: Spent 634.00 ms on a formula simplification that was a NOOP. DAG size: 1022 [2019-10-07 14:59:01,607 WARN L191 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 447 [2019-10-07 14:59:02,301 WARN L191 SmtUtils]: Spent 692.00 ms on a formula simplification that was a NOOP. DAG size: 1022 [2019-10-07 14:59:03,641 WARN L191 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 1024 DAG size of output: 1022 [2019-10-07 14:59:04,305 WARN L191 SmtUtils]: Spent 660.00 ms on a formula simplification that was a NOOP. DAG size: 1022 [2019-10-07 14:59:04,456 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 447 [2019-10-07 14:59:05,075 WARN L191 SmtUtils]: Spent 618.00 ms on a formula simplification that was a NOOP. DAG size: 1022 [2019-10-07 14:59:05,749 WARN L191 SmtUtils]: Spent 671.00 ms on a formula simplification that was a NOOP. DAG size: 1022 [2019-10-07 14:59:06,358 WARN L191 SmtUtils]: Spent 605.00 ms on a formula simplification that was a NOOP. DAG size: 1022 [2019-10-07 14:59:06,501 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 447 [2019-10-07 14:59:07,139 WARN L191 SmtUtils]: Spent 636.00 ms on a formula simplification that was a NOOP. DAG size: 1022 [2019-10-07 14:59:07,174 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 559 for LOIs [2019-10-07 14:59:07,502 WARN L191 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 653 [2019-10-07 14:59:07,612 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 653 [2019-10-07 14:59:07,733 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 447 [2019-10-07 14:59:08,215 WARN L191 SmtUtils]: Spent 480.00 ms on a formula simplification that was a NOOP. DAG size: 949 [2019-10-07 14:59:08,216 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1080 for LOIs [2019-10-07 14:59:08,833 WARN L191 SmtUtils]: Spent 615.00 ms on a formula simplification that was a NOOP. DAG size: 1080 [2019-10-07 14:59:09,479 WARN L191 SmtUtils]: Spent 642.00 ms on a formula simplification that was a NOOP. DAG size: 1080 [2019-10-07 14:59:09,816 WARN L191 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 639 [2019-10-07 14:59:10,846 WARN L191 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 1278 [2019-10-07 14:59:11,491 WARN L191 SmtUtils]: Spent 632.00 ms on a formula simplification that was a NOOP. DAG size: 1080 [2019-10-07 14:59:12,107 WARN L191 SmtUtils]: Spent 612.00 ms on a formula simplification that was a NOOP. DAG size: 1080 [2019-10-07 14:59:12,367 WARN L191 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 639 [2019-10-07 14:59:13,414 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1278 [2019-10-07 14:59:14,045 WARN L191 SmtUtils]: Spent 598.00 ms on a formula simplification that was a NOOP. DAG size: 1080 [2019-10-07 14:59:14,668 WARN L191 SmtUtils]: Spent 618.00 ms on a formula simplification that was a NOOP. DAG size: 1080 [2019-10-07 14:59:14,940 WARN L191 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 639 [2019-10-07 14:59:15,958 WARN L191 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 1278 [2019-10-07 14:59:16,997 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 1280 DAG size of output: 1080 [2019-10-07 14:59:17,585 WARN L191 SmtUtils]: Spent 585.00 ms on a formula simplification that was a NOOP. DAG size: 1080 [2019-10-07 14:59:18,046 WARN L191 SmtUtils]: Spent 442.00 ms on a formula simplification. DAG size of input: 641 DAG size of output: 639 [2019-10-07 14:59:19,028 WARN L191 SmtUtils]: Spent 981.00 ms on a formula simplification that was a NOOP. DAG size: 1278 [2019-10-07 14:59:19,634 WARN L191 SmtUtils]: Spent 590.00 ms on a formula simplification that was a NOOP. DAG size: 1080 [2019-10-07 14:59:20,245 WARN L191 SmtUtils]: Spent 608.00 ms on a formula simplification that was a NOOP. DAG size: 1080 [2019-10-07 14:59:20,613 WARN L191 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 639 [2019-10-07 14:59:21,630 WARN L191 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 1278 [2019-10-07 14:59:22,219 WARN L191 SmtUtils]: Spent 585.00 ms on a formula simplification that was a NOOP. DAG size: 1080 [2019-10-07 14:59:22,828 WARN L191 SmtUtils]: Spent 605.00 ms on a formula simplification that was a NOOP. DAG size: 1080 [2019-10-07 14:59:23,089 WARN L191 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 639 [2019-10-07 14:59:24,136 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1278 [2019-10-07 14:59:24,731 WARN L191 SmtUtils]: Spent 592.00 ms on a formula simplification that was a NOOP. DAG size: 1080 [2019-10-07 14:59:25,337 WARN L191 SmtUtils]: Spent 603.00 ms on a formula simplification that was a NOOP. DAG size: 1080 [2019-10-07 14:59:25,592 WARN L191 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 639 [2019-10-07 14:59:26,588 WARN L191 SmtUtils]: Spent 994.00 ms on a formula simplification that was a NOOP. DAG size: 1278 [2019-10-07 14:59:27,190 WARN L191 SmtUtils]: Spent 599.00 ms on a formula simplification that was a NOOP. DAG size: 1080 [2019-10-07 14:59:27,801 WARN L191 SmtUtils]: Spent 607.00 ms on a formula simplification that was a NOOP. DAG size: 1080 [2019-10-07 14:59:28,051 WARN L191 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 639 [2019-10-07 14:59:29,097 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1278 [2019-10-07 14:59:29,681 WARN L191 SmtUtils]: Spent 581.00 ms on a formula simplification that was a NOOP. DAG size: 1080 [2019-10-07 14:59:30,288 WARN L191 SmtUtils]: Spent 603.00 ms on a formula simplification that was a NOOP. DAG size: 1080 [2019-10-07 14:59:30,540 WARN L191 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 639 [2019-10-07 14:59:31,553 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 1278 [2019-10-07 14:59:32,140 WARN L191 SmtUtils]: Spent 585.00 ms on a formula simplification that was a NOOP. DAG size: 1080 [2019-10-07 14:59:32,745 WARN L191 SmtUtils]: Spent 601.00 ms on a formula simplification that was a NOOP. DAG size: 1080 [2019-10-07 14:59:33,001 WARN L191 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 639 [2019-10-07 14:59:33,984 WARN L191 SmtUtils]: Spent 980.00 ms on a formula simplification that was a NOOP. DAG size: 1278 [2019-10-07 14:59:34,585 WARN L191 SmtUtils]: Spent 598.00 ms on a formula simplification that was a NOOP. DAG size: 1080 [2019-10-07 14:59:35,173 WARN L191 SmtUtils]: Spent 584.00 ms on a formula simplification that was a NOOP. DAG size: 1080 [2019-10-07 14:59:35,426 WARN L191 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 639 [2019-10-07 14:59:36,416 WARN L191 SmtUtils]: Spent 987.00 ms on a formula simplification that was a NOOP. DAG size: 1278 [2019-10-07 14:59:37,003 WARN L191 SmtUtils]: Spent 584.00 ms on a formula simplification that was a NOOP. DAG size: 1080 [2019-10-07 14:59:37,598 WARN L191 SmtUtils]: Spent 592.00 ms on a formula simplification that was a NOOP. DAG size: 1080 [2019-10-07 14:59:37,851 WARN L191 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 639 [2019-10-07 14:59:38,838 WARN L191 SmtUtils]: Spent 986.00 ms on a formula simplification that was a NOOP. DAG size: 1278 [2019-10-07 14:59:39,428 WARN L191 SmtUtils]: Spent 587.00 ms on a formula simplification that was a NOOP. DAG size: 1080 [2019-10-07 14:59:40,027 WARN L191 SmtUtils]: Spent 596.00 ms on a formula simplification that was a NOOP. DAG size: 1080 [2019-10-07 14:59:40,282 WARN L191 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 639 [2019-10-07 14:59:41,269 WARN L191 SmtUtils]: Spent 984.00 ms on a formula simplification that was a NOOP. DAG size: 1278 [2019-10-07 14:59:42,349 WARN L191 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 1278 [2019-10-07 14:59:43,358 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 1278 [2019-10-07 14:59:43,627 WARN L191 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 639 [2019-10-07 14:59:44,638 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 1278 [2019-10-07 14:59:46,481 WARN L191 SmtUtils]: Spent 1.83 s on a formula simplification. DAG size of input: 1280 DAG size of output: 1278 [2019-10-07 14:59:47,472 WARN L191 SmtUtils]: Spent 986.00 ms on a formula simplification that was a NOOP. DAG size: 1278 [2019-10-07 14:59:47,740 WARN L191 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 639 [2019-10-07 14:59:48,749 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 1278 [2019-10-07 14:59:49,747 WARN L191 SmtUtils]: Spent 994.00 ms on a formula simplification that was a NOOP. DAG size: 1278 [2019-10-07 14:59:50,743 WARN L191 SmtUtils]: Spent 992.00 ms on a formula simplification that was a NOOP. DAG size: 1278 [2019-10-07 14:59:50,990 WARN L191 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 639 [2019-10-07 14:59:51,975 WARN L191 SmtUtils]: Spent 982.00 ms on a formula simplification that was a NOOP. DAG size: 1278 [2019-10-07 14:59:53,069 WARN L191 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 1282 [2019-10-07 14:59:54,048 WARN L191 SmtUtils]: Spent 975.00 ms on a formula simplification that was a NOOP. DAG size: 1282 [2019-10-07 14:59:54,298 WARN L191 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 642 [2019-10-07 14:59:55,280 WARN L191 SmtUtils]: Spent 979.00 ms on a formula simplification that was a NOOP. DAG size: 1282 [2019-10-07 14:59:56,299 WARN L191 SmtUtils]: Spent 998.00 ms on a formula simplification that was a NOOP. DAG size: 1282 [2019-10-07 14:59:57,291 WARN L191 SmtUtils]: Spent 989.00 ms on a formula simplification that was a NOOP. DAG size: 1282 [2019-10-07 14:59:57,542 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 642 [2019-10-07 14:59:58,528 WARN L191 SmtUtils]: Spent 984.00 ms on a formula simplification that was a NOOP. DAG size: 1282 [2019-10-07 14:59:59,517 WARN L191 SmtUtils]: Spent 986.00 ms on a formula simplification that was a NOOP. DAG size: 1282 [2019-10-07 15:00:00,519 WARN L191 SmtUtils]: Spent 998.00 ms on a formula simplification that was a NOOP. DAG size: 1282 [2019-10-07 15:00:00,769 WARN L191 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 642 [2019-10-07 15:00:01,837 WARN L191 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 1282 [2019-10-07 15:00:02,862 WARN L191 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 1280 [2019-10-07 15:00:03,845 WARN L191 SmtUtils]: Spent 978.00 ms on a formula simplification that was a NOOP. DAG size: 1280 [2019-10-07 15:00:04,100 WARN L191 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 642 [2019-10-07 15:00:05,077 WARN L191 SmtUtils]: Spent 975.00 ms on a formula simplification that was a NOOP. DAG size: 1282 [2019-10-07 15:00:06,069 WARN L191 SmtUtils]: Spent 989.00 ms on a formula simplification that was a NOOP. DAG size: 1282 [2019-10-07 15:00:07,051 WARN L191 SmtUtils]: Spent 977.00 ms on a formula simplification that was a NOOP. DAG size: 1282 [2019-10-07 15:00:07,300 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 642 [2019-10-07 15:00:08,288 WARN L191 SmtUtils]: Spent 986.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 15:00:10,319 WARN L191 SmtUtils]: Spent 1.99 s on a formula simplification. DAG size of input: 1280 DAG size of output: 1278 [2019-10-07 15:00:11,291 WARN L191 SmtUtils]: Spent 967.00 ms on a formula simplification that was a NOOP. DAG size: 1278 [2019-10-07 15:00:11,541 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 639 [2019-10-07 15:00:12,507 WARN L191 SmtUtils]: Spent 964.00 ms on a formula simplification that was a NOOP. DAG size: 1278 [2019-10-07 15:00:14,666 WARN L191 SmtUtils]: Spent 2.14 s on a formula simplification. DAG size of input: 1280 DAG size of output: 1278 [2019-10-07 15:00:15,647 WARN L191 SmtUtils]: Spent 977.00 ms on a formula simplification that was a NOOP. DAG size: 1278 [2019-10-07 15:00:15,908 WARN L191 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 639 [2019-10-07 15:00:16,877 WARN L191 SmtUtils]: Spent 967.00 ms on a formula simplification that was a NOOP. DAG size: 1278 [2019-10-07 15:00:17,852 WARN L191 SmtUtils]: Spent 971.00 ms on a formula simplification that was a NOOP. DAG size: 1278 [2019-10-07 15:00:18,823 WARN L191 SmtUtils]: Spent 967.00 ms on a formula simplification that was a NOOP. DAG size: 1278 [2019-10-07 15:00:19,068 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 639 [2019-10-07 15:00:20,048 WARN L191 SmtUtils]: Spent 978.00 ms on a formula simplification that was a NOOP. DAG size: 1278 [2019-10-07 15:00:21,858 WARN L191 SmtUtils]: Spent 1.77 s on a formula simplification. DAG size of input: 1280 DAG size of output: 1278 [2019-10-07 15:00:22,842 WARN L191 SmtUtils]: Spent 978.00 ms on a formula simplification that was a NOOP. DAG size: 1278 [2019-10-07 15:00:23,098 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 639 [2019-10-07 15:00:24,056 WARN L191 SmtUtils]: Spent 956.00 ms on a formula simplification that was a NOOP. DAG size: 1278 [2019-10-07 15:00:25,835 WARN L191 SmtUtils]: Spent 1.76 s on a formula simplification. DAG size of input: 1280 DAG size of output: 1278 [2019-10-07 15:00:26,818 WARN L191 SmtUtils]: Spent 979.00 ms on a formula simplification that was a NOOP. DAG size: 1278 [2019-10-07 15:00:27,068 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 639 [2019-10-07 15:00:28,041 WARN L191 SmtUtils]: Spent 971.00 ms on a formula simplification that was a NOOP. DAG size: 1278 [2019-10-07 15:00:29,005 WARN L191 SmtUtils]: Spent 961.00 ms on a formula simplification that was a NOOP. DAG size: 1278 [2019-10-07 15:00:29,992 WARN L191 SmtUtils]: Spent 983.00 ms on a formula simplification that was a NOOP. DAG size: 1278 [2019-10-07 15:00:30,237 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 639 [2019-10-07 15:00:31,204 WARN L191 SmtUtils]: Spent 964.00 ms on a formula simplification that was a NOOP. DAG size: 1278 [2019-10-07 15:00:32,210 WARN L191 SmtUtils]: Spent 977.00 ms on a formula simplification that was a NOOP. DAG size: 1282 [2019-10-07 15:00:33,196 WARN L191 SmtUtils]: Spent 982.00 ms on a formula simplification that was a NOOP. DAG size: 1282 [2019-10-07 15:00:33,454 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 642 [2019-10-07 15:00:34,428 WARN L191 SmtUtils]: Spent 971.00 ms on a formula simplification that was a NOOP. DAG size: 1282 [2019-10-07 15:00:36,215 WARN L191 SmtUtils]: Spent 1.77 s on a formula simplification. DAG size of input: 1284 DAG size of output: 1282 [2019-10-07 15:00:37,177 WARN L191 SmtUtils]: Spent 958.00 ms on a formula simplification that was a NOOP. DAG size: 1282 [2019-10-07 15:00:37,434 WARN L191 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 642 [2019-10-07 15:00:38,431 WARN L191 SmtUtils]: Spent 995.00 ms on a formula simplification that was a NOOP. DAG size: 1282 [2019-10-07 15:00:40,216 WARN L191 SmtUtils]: Spent 1.78 s on a formula simplification. DAG size of input: 1284 DAG size of output: 1282 [2019-10-07 15:00:41,188 WARN L191 SmtUtils]: Spent 969.00 ms on a formula simplification that was a NOOP. DAG size: 1282 [2019-10-07 15:00:41,436 WARN L191 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 642 [2019-10-07 15:00:42,426 WARN L191 SmtUtils]: Spent 988.00 ms on a formula simplification that was a NOOP. DAG size: 1282 [2019-10-07 15:00:44,147 WARN L191 SmtUtils]: Spent 1.71 s on a formula simplification. DAG size of input: 1284 DAG size of output: 1280 [2019-10-07 15:00:45,157 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 1280 [2019-10-07 15:00:45,406 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 642 [2019-10-07 15:00:46,381 WARN L191 SmtUtils]: Spent 973.00 ms on a formula simplification that was a NOOP. DAG size: 1282 [2019-10-07 15:00:48,129 WARN L191 SmtUtils]: Spent 1.74 s on a formula simplification. DAG size of input: 1286 DAG size of output: 1282 [2019-10-07 15:00:49,143 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 1282 [2019-10-07 15:00:49,398 WARN L191 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 642 [2019-10-07 15:00:50,414 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 15:00:50,692 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:00:50,693 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:133) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.lib.sifa.PriorityWorklist.add(PriorityWorklist.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.lambda$2(DagInterpreter.java:135) at java.lang.Iterable.forEach(Iterable.java:75) at java.util.Collections$UnmodifiableCollection.forEach(Collections.java:1080) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:135) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:139) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:287) ... 21 more [2019-10-07 15:00:50,700 INFO L168 Benchmark]: Toolchain (without parser) took 203836.39 ms. Allocated memory was 137.4 MB in the beginning and 895.0 MB in the end (delta: 757.6 MB). Free memory was 99.1 MB in the beginning and 555.2 MB in the end (delta: -456.1 MB). Peak memory consumption was 301.5 MB. Max. memory is 7.1 GB. [2019-10-07 15:00:50,700 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 137.4 MB. Free memory was 120.6 MB in the beginning and 120.4 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-10-07 15:00:50,701 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1108.96 ms. Allocated memory was 137.4 MB in the beginning and 201.9 MB in the end (delta: 64.5 MB). Free memory was 98.9 MB in the beginning and 133.1 MB in the end (delta: -34.2 MB). Peak memory consumption was 35.5 MB. Max. memory is 7.1 GB. [2019-10-07 15:00:50,702 INFO L168 Benchmark]: Boogie Preprocessor took 177.80 ms. Allocated memory is still 201.9 MB. Free memory was 133.1 MB in the beginning and 123.8 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2019-10-07 15:00:50,702 INFO L168 Benchmark]: RCFGBuilder took 4786.62 ms. Allocated memory was 201.9 MB in the beginning and 307.8 MB in the end (delta: 105.9 MB). Free memory was 123.8 MB in the beginning and 111.3 MB in the end (delta: 12.4 MB). Peak memory consumption was 118.4 MB. Max. memory is 7.1 GB. [2019-10-07 15:00:50,703 INFO L168 Benchmark]: TraceAbstraction took 197758.57 ms. Allocated memory was 307.8 MB in the beginning and 895.0 MB in the end (delta: 587.2 MB). Free memory was 111.3 MB in the beginning and 555.2 MB in the end (delta: -443.8 MB). Peak memory consumption was 143.4 MB. Max. memory is 7.1 GB. [2019-10-07 15:00:50,706 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 137.4 MB. Free memory was 120.6 MB in the beginning and 120.4 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1108.96 ms. Allocated memory was 137.4 MB in the beginning and 201.9 MB in the end (delta: 64.5 MB). Free memory was 98.9 MB in the beginning and 133.1 MB in the end (delta: -34.2 MB). Peak memory consumption was 35.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 177.80 ms. Allocated memory is still 201.9 MB. Free memory was 133.1 MB in the beginning and 123.8 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4786.62 ms. Allocated memory was 201.9 MB in the beginning and 307.8 MB in the end (delta: 105.9 MB). Free memory was 123.8 MB in the beginning and 111.3 MB in the end (delta: 12.4 MB). Peak memory consumption was 118.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 197758.57 ms. Allocated memory was 307.8 MB in the beginning and 895.0 MB in the end (delta: 587.2 MB). Free memory was 111.3 MB in the beginning and 555.2 MB in the end (delta: -443.8 MB). Peak memory consumption was 143.4 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...