java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/email_spec6_product14.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:11:00,525 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:11:00,528 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:11:00,548 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:11:00,549 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:11:00,551 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:11:00,553 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:11:00,564 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:11:00,569 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:11:00,572 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:11:00,573 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:11:00,575 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:11:00,575 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:11:00,577 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:11:00,579 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:11:00,581 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:11:00,583 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:11:00,584 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:11:00,585 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:11:00,590 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:11:00,594 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:11:00,597 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:11:00,600 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:11:00,601 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:11:00,603 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:11:00,603 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:11:00,604 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:11:00,606 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:11:00,607 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:11:00,608 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:11:00,608 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:11:00,609 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:11:00,610 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:11:00,611 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:11:00,612 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:11:00,612 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:11:00,613 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:11:00,613 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:11:00,614 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:11:00,615 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:11:00,616 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:11:00,617 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 [2019-10-13 23:11:00,644 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:11:00,644 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:11:00,652 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:11:00,653 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:11:00,653 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:11:00,653 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:11:00,653 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:11:00,654 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:11:00,654 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:11:00,654 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:11:00,657 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:11:00,657 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:11:00,657 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:11:00,658 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:11:00,658 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:11:00,658 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:11:00,659 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:11:00,659 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:11:00,660 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:11:00,660 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:11:00,660 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:11:00,660 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:11:00,660 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:11:00,661 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:11:00,661 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:11:00,661 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:11:00,661 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:11:00,661 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:11:00,661 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 [2019-10-13 23:11:00,994 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:11:01,014 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:11:01,018 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:11:01,020 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:11:01,020 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:11:01,021 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec6_product14.cil.c [2019-10-13 23:11:01,098 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/221698275/05719fceb77f45d5b5c76731e3fd447e/FLAG292a827df [2019-10-13 23:11:01,754 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:11:01,755 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec6_product14.cil.c [2019-10-13 23:11:01,775 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/221698275/05719fceb77f45d5b5c76731e3fd447e/FLAG292a827df [2019-10-13 23:11:01,962 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/221698275/05719fceb77f45d5b5c76731e3fd447e [2019-10-13 23:11:01,974 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:11:01,976 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:11:01,977 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:11:01,978 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:11:01,982 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:11:01,983 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:11:01" (1/1) ... [2019-10-13 23:11:01,986 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2be43138 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:01, skipping insertion in model container [2019-10-13 23:11:01,986 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:11:01" (1/1) ... [2019-10-13 23:11:01,995 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:11:02,079 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:11:02,922 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:11:02,941 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:11:03,061 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:11:03,150 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:11:03,151 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:03 WrapperNode [2019-10-13 23:11:03,151 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:11:03,152 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:11:03,152 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:11:03,153 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:11:03,168 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:03" (1/1) ... [2019-10-13 23:11:03,168 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:03" (1/1) ... [2019-10-13 23:11:03,221 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:03" (1/1) ... [2019-10-13 23:11:03,221 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:03" (1/1) ... [2019-10-13 23:11:03,281 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:03" (1/1) ... [2019-10-13 23:11:03,306 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:03" (1/1) ... [2019-10-13 23:11:03,326 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:03" (1/1) ... [2019-10-13 23:11:03,344 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:11:03,345 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:11:03,345 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:11:03,345 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:11:03,347 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:03" (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 [2019-10-13 23:11:03,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:11:03,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:11:03,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:11:03,443 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 23:11:03,444 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 23:11:03,445 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 23:11:03,446 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 23:11:03,446 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 23:11:03,446 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 23:11:03,447 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 23:11:03,447 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 23:11:03,449 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:11:03,449 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:11:03,449 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 23:11:03,449 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 23:11:03,450 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 23:11:03,453 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 23:11:03,453 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 23:11:03,453 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 23:11:03,454 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 23:11:03,454 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 23:11:03,454 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 23:11:03,455 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-13 23:11:03,455 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-13 23:11:03,455 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-13 23:11:03,455 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 23:11:03,455 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 23:11:03,456 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 23:11:03,456 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 23:11:03,456 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 23:11:03,456 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 23:11:03,456 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 23:11:03,457 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 23:11:03,457 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 23:11:03,457 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 23:11:03,457 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 23:11:03,457 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 23:11:03,457 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 23:11:03,458 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 23:11:03,458 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 23:11:03,458 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 23:11:03,458 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 23:11:03,458 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 23:11:03,459 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 23:11:03,459 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 23:11:03,459 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 23:11:03,459 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 23:11:03,459 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 23:11:03,460 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 23:11:03,460 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 23:11:03,460 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 23:11:03,460 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 23:11:03,460 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 23:11:03,461 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 23:11:03,461 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:11:03,461 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:11:03,461 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:11:03,461 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:11:03,462 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 23:11:03,463 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 23:11:03,463 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-13 23:11:03,463 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 23:11:03,463 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 23:11:03,464 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AddressBook [2019-10-13 23:11:03,464 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 23:11:03,464 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 23:11:03,464 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 23:11:03,464 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 23:11:03,464 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 23:11:03,465 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 23:11:03,465 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 23:11:03,465 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 23:11:03,465 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 23:11:03,467 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-13 23:11:03,467 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:11:03,467 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 23:11:03,468 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:11:03,468 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 23:11:03,469 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 23:11:03,469 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 23:11:03,469 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 23:11:03,470 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 23:11:03,470 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 23:11:03,471 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:11:03,471 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:11:03,471 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:11:03,472 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:11:03,472 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:11:03,473 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:11:03,473 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 23:11:03,473 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 23:11:03,473 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 23:11:03,473 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 23:11:03,474 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 23:11:03,474 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 23:11:03,474 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 23:11:03,474 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 23:11:03,474 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 23:11:03,475 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 23:11:03,475 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 23:11:03,475 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 23:11:03,475 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 23:11:03,475 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 23:11:03,476 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 23:11:03,476 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 23:11:03,476 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 23:11:03,476 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 23:11:03,476 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 23:11:03,476 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 23:11:03,477 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 23:11:03,477 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:11:03,477 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:11:03,477 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:11:03,477 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 23:11:03,478 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 23:11:03,478 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 23:11:03,478 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 23:11:03,479 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 23:11:03,479 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 23:11:03,479 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 23:11:03,480 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 23:11:03,480 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 23:11:03,480 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 23:11:03,480 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 23:11:03,482 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:11:03,482 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:11:03,483 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:11:03,483 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 23:11:03,483 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 23:11:03,483 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 23:11:03,484 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 23:11:03,484 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 23:11:03,485 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 23:11:03,486 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 23:11:03,489 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 23:11:03,489 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 23:11:03,490 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 23:11:03,490 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 23:11:03,490 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:11:03,491 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:11:03,491 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:11:03,491 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 23:11:03,491 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 23:11:03,492 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 23:11:03,499 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 23:11:03,499 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 23:11:03,499 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 23:11:03,500 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 23:11:03,500 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 23:11:03,500 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 23:11:03,500 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-13 23:11:03,501 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 23:11:03,501 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 23:11:03,501 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 23:11:03,502 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:11:03,502 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:11:03,502 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 23:11:03,502 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 23:11:03,502 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 23:11:03,502 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 23:11:03,502 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-13 23:11:03,503 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-13 23:11:03,503 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 23:11:03,503 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 23:11:03,503 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 23:11:03,503 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 23:11:03,503 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 23:11:03,503 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 23:11:03,503 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 23:11:03,504 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 23:11:03,504 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 23:11:03,504 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 23:11:03,504 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 23:11:03,504 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 23:11:03,504 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 23:11:03,504 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 23:11:03,504 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 23:11:03,505 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 23:11:03,505 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 23:11:03,505 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 23:11:03,505 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:11:03,505 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 23:11:03,505 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 23:11:03,505 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 23:11:03,506 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 23:11:03,506 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 23:11:03,506 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 23:11:03,506 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 23:11:03,506 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 23:11:03,506 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 23:11:03,506 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 23:11:03,507 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 23:11:03,507 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-13 23:11:03,507 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 23:11:03,507 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-13 23:11:03,507 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AddressBook [2019-10-13 23:11:03,507 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 23:11:03,507 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 23:11:03,508 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 23:11:03,508 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 23:11:03,508 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 23:11:03,508 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 23:11:03,508 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 23:11:03,508 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 23:11:03,508 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:11:03,508 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:11:03,508 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:11:03,509 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:11:03,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:11:03,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:11:03,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:11:03,509 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:11:03,509 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:11:03,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:11:03,509 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:11:03,509 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:11:03,510 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:11:03,510 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:11:03,510 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:11:03,510 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:11:03,510 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 23:11:03,510 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 23:11:03,510 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 23:11:03,510 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 23:11:03,511 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 23:11:03,511 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 23:11:03,511 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 23:11:03,511 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 23:11:03,511 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 23:11:03,511 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 23:11:03,511 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 23:11:03,512 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 23:11:03,512 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:11:03,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:11:03,512 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:11:08,326 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:11:08,326 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 23:11:08,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:11:08 BoogieIcfgContainer [2019-10-13 23:11:08,328 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:11:08,329 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:11:08,330 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:11:08,333 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:11:08,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:11:01" (1/3) ... [2019-10-13 23:11:08,335 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dc3451a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:11:08, skipping insertion in model container [2019-10-13 23:11:08,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:03" (2/3) ... [2019-10-13 23:11:08,335 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dc3451a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:11:08, skipping insertion in model container [2019-10-13 23:11:08,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:11:08" (3/3) ... [2019-10-13 23:11:08,338 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec6_product14.cil.c [2019-10-13 23:11:08,351 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:11:08,362 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:11:08,378 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:11:08,412 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:11:08,413 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:11:08,413 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:11:08,413 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:11:08,413 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:11:08,413 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:11:08,413 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:11:08,413 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:11:08,445 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states. [2019-10-13 23:11:08,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2019-10-13 23:11:08,466 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:11:08,467 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:11:08,469 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:11:08,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:11:08,477 INFO L82 PathProgramCache]: Analyzing trace with hash 1078286448, now seen corresponding path program 1 times [2019-10-13 23:11:08,488 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:11:08,489 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053868494] [2019-10-13 23:11:08,489 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:08,489 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:08,490 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:11:08,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:09,173 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-13 23:11:09,174 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053868494] [2019-10-13 23:11:09,175 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:11:09,175 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:11:09,176 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908523044] [2019-10-13 23:11:09,184 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:11:09,185 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:11:09,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:11:09,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:11:09,203 INFO L87 Difference]: Start difference. First operand 363 states. Second operand 2 states. [2019-10-13 23:11:09,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:11:09,308 INFO L93 Difference]: Finished difference Result 477 states and 577 transitions. [2019-10-13 23:11:09,310 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:11:09,312 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 143 [2019-10-13 23:11:09,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:11:09,341 INFO L225 Difference]: With dead ends: 477 [2019-10-13 23:11:09,341 INFO L226 Difference]: Without dead ends: 317 [2019-10-13 23:11:09,353 INFO L600 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 [2019-10-13 23:11:09,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2019-10-13 23:11:09,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 317. [2019-10-13 23:11:09,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 317 states. [2019-10-13 23:11:09,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 379 transitions. [2019-10-13 23:11:09,446 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 379 transitions. Word has length 143 [2019-10-13 23:11:09,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:11:09,449 INFO L462 AbstractCegarLoop]: Abstraction has 317 states and 379 transitions. [2019-10-13 23:11:09,449 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:11:09,449 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 379 transitions. [2019-10-13 23:11:09,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2019-10-13 23:11:09,455 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:11:09,455 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:11:09,456 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:11:09,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:11:09,456 INFO L82 PathProgramCache]: Analyzing trace with hash 528201718, now seen corresponding path program 1 times [2019-10-13 23:11:09,456 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:11:09,457 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762020684] [2019-10-13 23:11:09,457 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:09,457 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:09,457 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:11:09,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:09,785 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-13 23:11:09,786 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762020684] [2019-10-13 23:11:09,786 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:11:09,786 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:11:09,787 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682685254] [2019-10-13 23:11:09,791 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:11:09,791 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:11:09,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:11:09,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:11:09,792 INFO L87 Difference]: Start difference. First operand 317 states and 379 transitions. Second operand 3 states. [2019-10-13 23:11:09,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:11:09,880 INFO L93 Difference]: Finished difference Result 462 states and 545 transitions. [2019-10-13 23:11:09,885 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:11:09,886 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 144 [2019-10-13 23:11:09,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:11:09,898 INFO L225 Difference]: With dead ends: 462 [2019-10-13 23:11:09,899 INFO L226 Difference]: Without dead ends: 319 [2019-10-13 23:11:09,901 INFO L600 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 [2019-10-13 23:11:09,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2019-10-13 23:11:09,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 319. [2019-10-13 23:11:09,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2019-10-13 23:11:09,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 381 transitions. [2019-10-13 23:11:09,952 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 381 transitions. Word has length 144 [2019-10-13 23:11:09,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:11:09,953 INFO L462 AbstractCegarLoop]: Abstraction has 319 states and 381 transitions. [2019-10-13 23:11:09,953 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:11:09,953 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 381 transitions. [2019-10-13 23:11:09,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2019-10-13 23:11:09,960 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:11:09,960 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:11:09,961 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:11:09,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:11:09,961 INFO L82 PathProgramCache]: Analyzing trace with hash -1406856567, now seen corresponding path program 1 times [2019-10-13 23:11:09,962 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:11:09,962 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640955249] [2019-10-13 23:11:09,963 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:09,963 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:09,963 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:11:10,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:10,201 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-13 23:11:10,201 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640955249] [2019-10-13 23:11:10,202 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:11:10,202 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:11:10,202 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907810443] [2019-10-13 23:11:10,203 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:11:10,203 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:11:10,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:11:10,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:11:10,204 INFO L87 Difference]: Start difference. First operand 319 states and 381 transitions. Second operand 3 states. [2019-10-13 23:11:10,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:11:10,239 INFO L93 Difference]: Finished difference Result 620 states and 769 transitions. [2019-10-13 23:11:10,240 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:11:10,240 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 149 [2019-10-13 23:11:10,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:11:10,244 INFO L225 Difference]: With dead ends: 620 [2019-10-13 23:11:10,244 INFO L226 Difference]: Without dead ends: 359 [2019-10-13 23:11:10,245 INFO L600 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 [2019-10-13 23:11:10,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2019-10-13 23:11:10,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 358. [2019-10-13 23:11:10,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 358 states. [2019-10-13 23:11:10,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 449 transitions. [2019-10-13 23:11:10,268 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 449 transitions. Word has length 149 [2019-10-13 23:11:10,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:11:10,268 INFO L462 AbstractCegarLoop]: Abstraction has 358 states and 449 transitions. [2019-10-13 23:11:10,268 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:11:10,268 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 449 transitions. [2019-10-13 23:11:10,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2019-10-13 23:11:10,272 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:11:10,272 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:11:10,272 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:11:10,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:11:10,273 INFO L82 PathProgramCache]: Analyzing trace with hash -623699734, now seen corresponding path program 1 times [2019-10-13 23:11:10,273 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:11:10,273 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454584880] [2019-10-13 23:11:10,273 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:10,274 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:10,274 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:11:10,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:11,034 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 23:11:11,035 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454584880] [2019-10-13 23:11:11,035 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:11:11,035 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2019-10-13 23:11:11,035 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533296730] [2019-10-13 23:11:11,037 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2019-10-13 23:11:11,037 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:11:11,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2019-10-13 23:11:11,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=492, Unknown=0, NotChecked=0, Total=552 [2019-10-13 23:11:11,039 INFO L87 Difference]: Start difference. First operand 358 states and 449 transitions. Second operand 24 states. [2019-10-13 23:11:18,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:11:18,181 INFO L93 Difference]: Finished difference Result 856 states and 1077 transitions. [2019-10-13 23:11:18,185 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2019-10-13 23:11:18,186 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 150 [2019-10-13 23:11:18,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:11:18,193 INFO L225 Difference]: With dead ends: 856 [2019-10-13 23:11:18,193 INFO L226 Difference]: Without dead ends: 721 [2019-10-13 23:11:18,195 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 538 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=272, Invalid=2484, Unknown=0, NotChecked=0, Total=2756 [2019-10-13 23:11:18,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 721 states. [2019-10-13 23:11:18,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 721 to 708. [2019-10-13 23:11:18,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 708 states. [2019-10-13 23:11:18,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 876 transitions. [2019-10-13 23:11:18,264 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 876 transitions. Word has length 150 [2019-10-13 23:11:18,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:11:18,265 INFO L462 AbstractCegarLoop]: Abstraction has 708 states and 876 transitions. [2019-10-13 23:11:18,265 INFO L463 AbstractCegarLoop]: Interpolant automaton has 24 states. [2019-10-13 23:11:18,265 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 876 transitions. [2019-10-13 23:11:18,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2019-10-13 23:11:18,270 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:11:18,270 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:11:18,270 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:11:18,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:11:18,271 INFO L82 PathProgramCache]: Analyzing trace with hash -1533557838, now seen corresponding path program 1 times [2019-10-13 23:11:18,271 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:11:18,272 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220394802] [2019-10-13 23:11:18,272 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:18,272 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:18,272 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:11:18,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:19,078 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-10-13 23:11:19,079 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220394802] [2019-10-13 23:11:19,079 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [189608280] [2019-10-13 23:11:19,079 INFO L94 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 [2019-10-13 23:11:19,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:19,626 INFO L256 TraceCheckSpWp]: Trace formula consists of 2594 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-13 23:11:19,643 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:11:19,772 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-13 23:11:19,773 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:11:20,086 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-13 23:11:20,086 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1357067088] [2019-10-13 23:11:20,118 INFO L162 IcfgInterpreter]: Started Sifa with 143 locations of interest [2019-10-13 23:11:20,118 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 23:11:20,126 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 23:11:20,135 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 23:11:20,135 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs