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_product33.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:11:18,503 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:11:18,507 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:11:18,527 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:11:18,527 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:11:18,529 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:11:18,531 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:11:18,542 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:11:18,548 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:11:18,549 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:11:18,551 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:11:18,553 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:11:18,553 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:11:18,555 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:11:18,558 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:11:18,560 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:11:18,561 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:11:18,563 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:11:18,565 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:11:18,571 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:11:18,577 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:11:18,580 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:11:18,583 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:11:18,583 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:11:18,586 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:11:18,586 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:11:18,586 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:11:18,588 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:11:18,589 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:11:18,591 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:11:18,591 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:11:18,593 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:11:18,594 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:11:18,595 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:11:18,597 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:11:18,598 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:11:18,598 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:11:18,598 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:11:18,599 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:11:18,600 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:11:18,601 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:11:18,602 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 23:11:18,641 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:11:18,641 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:11:18,646 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:11:18,646 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:11:18,646 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:11:18,646 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:11:18,647 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:11:18,647 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:11:18,647 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:11:18,650 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:11:18,650 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:11:18,650 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:11:18,651 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:11:18,651 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:11:18,651 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:11:18,651 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:11:18,651 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:11:18,651 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:11:18,652 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:11:18,652 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:11:18,653 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:11:18,653 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:11:18,654 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:11:18,654 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:11:18,654 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:11:18,654 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:11:18,654 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:11:18,655 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:11:18,655 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 23:11:18,991 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:11:19,012 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:11:19,018 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:11:19,019 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:11:19,020 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:11:19,021 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec6_product33.cil.c [2019-10-13 23:11:19,094 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06ddca4de/cd652e97aedc444b9aa299619f8cc1e8/FLAGf8ea56084 [2019-10-13 23:11:19,733 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:11:19,733 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec6_product33.cil.c [2019-10-13 23:11:19,767 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06ddca4de/cd652e97aedc444b9aa299619f8cc1e8/FLAGf8ea56084 [2019-10-13 23:11:19,928 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06ddca4de/cd652e97aedc444b9aa299619f8cc1e8 [2019-10-13 23:11:19,939 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:11:19,941 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:11:19,944 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:11:19,944 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:11:19,947 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:11:19,948 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:11:19" (1/1) ... [2019-10-13 23:11:19,951 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@286ff162 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:19, skipping insertion in model container [2019-10-13 23:11:19,952 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:11:19" (1/1) ... [2019-10-13 23:11:19,960 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:11:20,045 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:11:20,921 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:11:20,943 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:11:21,119 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:11:21,225 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:11:21,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:21 WrapperNode [2019-10-13 23:11:21,225 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:11:21,226 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:11:21,227 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:11:21,227 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:11:21,242 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:21" (1/1) ... [2019-10-13 23:11:21,242 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:21" (1/1) ... [2019-10-13 23:11:21,318 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:21" (1/1) ... [2019-10-13 23:11:21,319 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:21" (1/1) ... [2019-10-13 23:11:21,413 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:21" (1/1) ... [2019-10-13 23:11:21,451 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:21" (1/1) ... [2019-10-13 23:11:21,472 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:21" (1/1) ... [2019-10-13 23:11:21,497 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:11:21,497 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:11:21,497 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:11:21,498 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:11:21,501 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:21" (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 23:11:21,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:11:21,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:11:21,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:11:21,574 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 23:11:21,575 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:11:21,576 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 23:11:21,576 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 23:11:21,577 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 23:11:21,577 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 23:11:21,577 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 23:11:21,577 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 23:11:21,578 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 23:11:21,578 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 23:11:21,579 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 23:11:21,579 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 23:11:21,579 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 23:11:21,582 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 23:11:21,582 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 23:11:21,582 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 23:11:21,583 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 23:11:21,583 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 23:11:21,584 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 23:11:21,584 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 23:11:21,584 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 23:11:21,584 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 23:11:21,584 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 23:11:21,585 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 23:11:21,585 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 23:11:21,586 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 23:11:21,586 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 23:11:21,586 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 23:11:21,587 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 23:11:21,587 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 23:11:21,587 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 23:11:21,587 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 23:11:21,587 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 23:11:21,588 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-13 23:11:21,588 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 23:11:21,588 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 23:11:21,588 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-13 23:11:21,588 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-13 23:11:21,588 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-13 23:11:21,589 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-13 23:11:21,589 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 23:11:21,589 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 23:11:21,589 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 23:11:21,589 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 23:11:21,589 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 23:11:21,589 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 23:11:21,590 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 23:11:21,590 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 23:11:21,590 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 23:11:21,590 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-13 23:11:21,590 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-13 23:11:21,590 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-13 23:11:21,591 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-13 23:11:21,591 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-13 23:11:21,591 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-13 23:11:21,591 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:11:21,592 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 23:11:21,592 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 23:11:21,592 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 23:11:21,592 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 23:11:21,592 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 23:11:21,592 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 23:11:21,593 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 23:11:21,593 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 23:11:21,593 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:11:21,593 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:11:21,593 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 23:11:21,593 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 23:11:21,593 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 23:11:21,594 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 23:11:21,594 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 23:11:21,595 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 23:11:21,595 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 23:11:21,595 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 23:11:21,596 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 23:11:21,596 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-13 23:11:21,596 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-13 23:11:21,597 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:11:21,597 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:11:21,597 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:11:21,597 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:11:21,597 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:11:21,597 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:11:21,598 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:11:21,598 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:11:21,599 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:11:21,599 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:11:21,599 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 23:11:21,599 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 23:11:21,599 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 23:11:21,599 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 23:11:21,600 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 23:11:21,600 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 23:11:21,600 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 23:11:21,600 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 23:11:21,600 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 23:11:21,601 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 23:11:21,601 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 23:11:21,601 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 23:11:21,601 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 23:11:21,601 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 23:11:21,601 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 23:11:21,602 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 23:11:21,602 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 23:11:21,602 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 23:11:21,602 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 23:11:21,602 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 23:11:21,603 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 23:11:21,603 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 23:11:21,603 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AutoResponder [2019-10-13 23:11:21,603 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-13 23:11:21,603 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 23:11:21,604 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 23:11:21,604 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 23:11:21,604 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 23:11:21,605 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 23:11:21,605 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:11:21,605 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:11:21,606 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:11:21,606 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 23:11:21,606 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:11:21,607 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:11:21,608 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 23:11:21,608 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 23:11:21,608 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 23:11:21,608 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 23:11:21,608 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 23:11:21,609 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 23:11:21,609 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 23:11:21,610 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 23:11:21,610 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 23:11:21,614 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 23:11:21,614 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 23:11:21,614 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 23:11:21,614 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 23:11:21,615 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 23:11:21,615 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 23:11:21,615 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 23:11:21,616 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 23:11:21,616 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 23:11:21,617 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 23:11:21,623 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 23:11:21,624 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 23:11:21,624 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 23:11:21,624 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 23:11:21,625 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 23:11:21,626 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 23:11:21,626 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 23:11:21,626 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 23:11:21,627 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 23:11:21,627 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 23:11:21,627 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 23:11:21,627 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 23:11:21,627 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 23:11:21,627 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 23:11:21,628 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 23:11:21,628 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 23:11:21,628 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 23:11:21,628 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 23:11:21,628 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 23:11:21,628 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 23:11:21,629 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 23:11:21,629 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 23:11:21,629 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 23:11:21,629 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 23:11:21,629 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 23:11:21,629 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 23:11:21,630 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 23:11:21,630 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 23:11:21,630 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 23:11:21,630 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 23:11:21,630 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 23:11:21,630 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 23:11:21,630 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 23:11:21,631 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 23:11:21,631 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 23:11:21,631 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 23:11:21,631 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 23:11:21,631 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 23:11:21,631 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 23:11:21,632 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-13 23:11:21,632 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-13 23:11:21,632 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-13 23:11:21,632 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-13 23:11:21,633 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-13 23:11:21,633 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 23:11:21,633 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-13 23:11:21,633 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-13 23:11:21,633 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-13 23:11:21,634 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-13 23:11:21,634 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-13 23:11:21,634 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-13 23:11:21,634 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 23:11:21,634 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-13 23:11:21,634 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 23:11:21,635 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 23:11:21,635 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 23:11:21,635 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-13 23:11:21,635 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 23:11:21,635 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 23:11:21,635 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 23:11:21,635 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 23:11:21,636 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:11:21,636 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:11:21,636 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:11:21,636 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:11:21,636 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 23:11:21,636 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 23:11:21,637 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 23:11:21,637 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 23:11:21,637 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:11:21,637 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:11:21,637 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 23:11:21,637 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 23:11:21,637 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 23:11:21,638 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 23:11:21,638 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 23:11:21,638 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:11:21,638 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:11:21,638 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:11:21,638 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:11:21,638 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:11:21,639 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:11:21,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:11:21,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:11:21,639 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:11:21,639 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:11:21,639 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:11:21,640 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:11:21,640 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:11:21,640 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:11:21,640 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:11:21,640 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:11:21,640 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:11:21,640 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 23:11:21,641 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 23:11:21,641 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 23:11:21,641 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 23:11:21,641 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 23:11:21,641 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 23:11:21,641 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 23:11:21,641 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 23:11:21,642 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 23:11:21,642 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 23:11:21,642 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AutoResponder [2019-10-13 23:11:21,642 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-13 23:11:21,642 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 23:11:21,642 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:11:21,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:11:21,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:11:26,755 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:11:26,755 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 23:11:26,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:11:26 BoogieIcfgContainer [2019-10-13 23:11:26,757 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:11:26,758 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:11:26,758 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:11:26,761 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:11:26,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:11:19" (1/3) ... [2019-10-13 23:11:26,763 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@87140a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:11:26, skipping insertion in model container [2019-10-13 23:11:26,763 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:21" (2/3) ... [2019-10-13 23:11:26,763 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@87140a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:11:26, skipping insertion in model container [2019-10-13 23:11:26,763 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:11:26" (3/3) ... [2019-10-13 23:11:26,765 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec6_product33.cil.c [2019-10-13 23:11:26,775 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:11:26,784 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:11:26,795 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:11:26,832 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:11:26,833 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:11:26,833 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:11:26,836 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:11:26,837 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:11:26,837 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:11:26,837 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:11:26,837 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:11:26,869 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states. [2019-10-13 23:11:26,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2019-10-13 23:11:26,888 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:11:26,889 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] [2019-10-13 23:11:26,892 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:11:26,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:11:26,898 INFO L82 PathProgramCache]: Analyzing trace with hash -1623291085, now seen corresponding path program 1 times [2019-10-13 23:11:26,908 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:11:26,908 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091378527] [2019-10-13 23:11:26,908 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:26,909 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:26,909 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:11:27,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:27,638 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 23:11:27,639 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091378527] [2019-10-13 23:11:27,640 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:11:27,640 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:11:27,641 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228295572] [2019-10-13 23:11:27,647 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:11:27,648 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:11:27,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:11:27,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:11:27,665 INFO L87 Difference]: Start difference. First operand 441 states. Second operand 2 states. [2019-10-13 23:11:27,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:11:27,748 INFO L93 Difference]: Finished difference Result 683 states and 812 transitions. [2019-10-13 23:11:27,748 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:11:27,750 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 147 [2019-10-13 23:11:27,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:11:27,790 INFO L225 Difference]: With dead ends: 683 [2019-10-13 23:11:27,791 INFO L226 Difference]: Without dead ends: 420 [2019-10-13 23:11:27,805 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 23:11:27,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2019-10-13 23:11:27,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 420. [2019-10-13 23:11:27,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 420 states. [2019-10-13 23:11:27,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 497 transitions. [2019-10-13 23:11:27,911 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 497 transitions. Word has length 147 [2019-10-13 23:11:27,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:11:27,913 INFO L462 AbstractCegarLoop]: Abstraction has 420 states and 497 transitions. [2019-10-13 23:11:27,913 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:11:27,914 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 497 transitions. [2019-10-13 23:11:27,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2019-10-13 23:11:27,920 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:11:27,920 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] [2019-10-13 23:11:27,921 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:11:27,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:11:27,921 INFO L82 PathProgramCache]: Analyzing trace with hash -1724537320, now seen corresponding path program 1 times [2019-10-13 23:11:27,921 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:11:27,922 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504529813] [2019-10-13 23:11:27,922 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:27,922 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:27,922 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:11:28,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:28,190 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 23:11:28,191 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504529813] [2019-10-13 23:11:28,191 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:11:28,191 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:11:28,191 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700704623] [2019-10-13 23:11:28,193 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:11:28,194 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:11:28,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:11:28,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:11:28,194 INFO L87 Difference]: Start difference. First operand 420 states and 497 transitions. Second operand 3 states. [2019-10-13 23:11:28,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:11:28,238 INFO L93 Difference]: Finished difference Result 668 states and 782 transitions. [2019-10-13 23:11:28,239 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:11:28,239 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 148 [2019-10-13 23:11:28,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:11:28,243 INFO L225 Difference]: With dead ends: 668 [2019-10-13 23:11:28,243 INFO L226 Difference]: Without dead ends: 422 [2019-10-13 23:11:28,246 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 23:11:28,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2019-10-13 23:11:28,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 422. [2019-10-13 23:11:28,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 422 states. [2019-10-13 23:11:28,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 499 transitions. [2019-10-13 23:11:28,297 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 499 transitions. Word has length 148 [2019-10-13 23:11:28,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:11:28,298 INFO L462 AbstractCegarLoop]: Abstraction has 422 states and 499 transitions. [2019-10-13 23:11:28,298 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:11:28,298 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 499 transitions. [2019-10-13 23:11:28,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2019-10-13 23:11:28,315 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:11:28,315 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:11:28,316 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:11:28,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:11:28,316 INFO L82 PathProgramCache]: Analyzing trace with hash -1518031075, now seen corresponding path program 1 times [2019-10-13 23:11:28,317 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:11:28,317 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580894639] [2019-10-13 23:11:28,317 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:28,318 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:28,320 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:11:28,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:28,690 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 23:11:28,690 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580894639] [2019-10-13 23:11:28,691 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:11:28,691 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:11:28,691 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27247081] [2019-10-13 23:11:28,695 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:11:28,695 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:11:28,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:11:28,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:11:28,696 INFO L87 Difference]: Start difference. First operand 422 states and 499 transitions. Second operand 3 states. [2019-10-13 23:11:28,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:11:28,782 INFO L93 Difference]: Finished difference Result 828 states and 1008 transitions. [2019-10-13 23:11:28,782 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:11:28,782 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 160 [2019-10-13 23:11:28,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:11:28,790 INFO L225 Difference]: With dead ends: 828 [2019-10-13 23:11:28,791 INFO L226 Difference]: Without dead ends: 464 [2019-10-13 23:11:28,793 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 23:11:28,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2019-10-13 23:11:28,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 463. [2019-10-13 23:11:28,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 463 states. [2019-10-13 23:11:28,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 570 transitions. [2019-10-13 23:11:28,839 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 570 transitions. Word has length 160 [2019-10-13 23:11:28,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:11:28,841 INFO L462 AbstractCegarLoop]: Abstraction has 463 states and 570 transitions. [2019-10-13 23:11:28,841 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:11:28,841 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 570 transitions. [2019-10-13 23:11:28,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2019-10-13 23:11:28,848 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:11:28,848 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:11:28,849 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:11:28,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:11:28,850 INFO L82 PathProgramCache]: Analyzing trace with hash 889907307, now seen corresponding path program 1 times [2019-10-13 23:11:28,850 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:11:28,850 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754448462] [2019-10-13 23:11:28,851 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:28,851 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:28,851 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:11:28,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:29,581 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-13 23:11:29,581 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754448462] [2019-10-13 23:11:29,582 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:11:29,582 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2019-10-13 23:11:29,582 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744264173] [2019-10-13 23:11:29,584 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2019-10-13 23:11:29,584 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:11:29,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2019-10-13 23:11:29,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=492, Unknown=0, NotChecked=0, Total=552 [2019-10-13 23:11:29,586 INFO L87 Difference]: Start difference. First operand 463 states and 570 transitions. Second operand 24 states. [2019-10-13 23:11:37,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:11:37,454 INFO L93 Difference]: Finished difference Result 1336 states and 1598 transitions. [2019-10-13 23:11:37,455 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2019-10-13 23:11:37,455 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 161 [2019-10-13 23:11:37,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:11:37,463 INFO L225 Difference]: With dead ends: 1336 [2019-10-13 23:11:37,463 INFO L226 Difference]: Without dead ends: 945 [2019-10-13 23:11:37,469 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 484 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=255, Invalid=2295, Unknown=0, NotChecked=0, Total=2550 [2019-10-13 23:11:37,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 945 states. [2019-10-13 23:11:37,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 945 to 936. [2019-10-13 23:11:37,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 936 states. [2019-10-13 23:11:37,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 936 states to 936 states and 1112 transitions. [2019-10-13 23:11:37,521 INFO L78 Accepts]: Start accepts. Automaton has 936 states and 1112 transitions. Word has length 161 [2019-10-13 23:11:37,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:11:37,522 INFO L462 AbstractCegarLoop]: Abstraction has 936 states and 1112 transitions. [2019-10-13 23:11:37,522 INFO L463 AbstractCegarLoop]: Interpolant automaton has 24 states. [2019-10-13 23:11:37,522 INFO L276 IsEmpty]: Start isEmpty. Operand 936 states and 1112 transitions. [2019-10-13 23:11:37,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2019-10-13 23:11:37,526 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:11:37,526 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:11:37,526 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:11:37,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:11:37,527 INFO L82 PathProgramCache]: Analyzing trace with hash -19579684, now seen corresponding path program 1 times [2019-10-13 23:11:37,527 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:11:37,527 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624918123] [2019-10-13 23:11:37,527 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:37,527 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:37,528 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:11:37,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:38,166 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:11:38,167 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624918123] [2019-10-13 23:11:38,167 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [891642808] [2019-10-13 23:11:38,168 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 23:11:38,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:38,739 INFO L256 TraceCheckSpWp]: Trace formula consists of 2871 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-13 23:11:38,756 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:11:38,864 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 23:11:38,864 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:11:39,189 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 23:11:39,189 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1046540904] [2019-10-13 23:11:39,223 INFO L162 IcfgInterpreter]: Started Sifa with 152 locations of interest [2019-10-13 23:11:39,224 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 23:11:39,231 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 23:11:39,239 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 23:11:39,240 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs