java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/email_spec3_product19.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:09:12,533 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:09:12,536 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:09:12,554 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:09:12,555 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:09:12,557 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:09:12,559 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:09:12,568 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:09:12,573 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:09:12,576 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:09:12,578 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:09:12,579 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:09:12,579 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:09:12,581 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:09:12,584 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:09:12,585 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:09:12,587 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:09:12,588 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:09:12,589 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:09:12,594 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:09:12,598 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:09:12,601 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:09:12,604 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:09:12,605 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:09:12,607 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:09:12,607 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:09:12,608 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:09:12,610 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:09:12,611 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:09:12,612 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:09:12,612 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:09:12,614 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:09:12,615 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:09:12,616 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:09:12,618 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:09:12,618 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:09:12,618 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:09:12,619 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:09:12,619 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:09:12,620 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:09:12,621 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:09:12,622 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 23:09:12,645 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:09:12,645 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:09:12,646 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:09:12,647 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:09:12,647 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:09:12,647 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:09:12,647 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:09:12,648 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:09:12,648 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:09:12,648 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:09:12,651 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:09:12,652 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:09:12,652 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:09:12,652 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:09:12,652 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:09:12,652 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:09:12,652 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:09:12,653 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:09:12,653 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:09:12,653 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:09:12,653 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:09:12,654 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:09:12,654 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:09:12,654 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:09:12,654 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:09:12,654 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:09:12,655 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:09:12,655 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:09:12,655 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 23:09:12,960 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:09:12,974 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:09:12,978 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:09:12,979 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:09:12,979 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:09:12,980 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec3_product19.cil.c [2019-10-13 23:09:13,053 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4bf541f01/280c7567ce9846b8aa1e7ede9f97c2b1/FLAG9219d7a48 [2019-10-13 23:09:13,758 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:09:13,759 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec3_product19.cil.c [2019-10-13 23:09:13,788 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4bf541f01/280c7567ce9846b8aa1e7ede9f97c2b1/FLAG9219d7a48 [2019-10-13 23:09:13,919 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4bf541f01/280c7567ce9846b8aa1e7ede9f97c2b1 [2019-10-13 23:09:13,930 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:09:13,932 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:09:13,933 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:09:13,934 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:09:13,937 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:09:13,938 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:09:13" (1/1) ... [2019-10-13 23:09:13,942 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2feeb304 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:13, skipping insertion in model container [2019-10-13 23:09:13,942 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:09:13" (1/1) ... [2019-10-13 23:09:13,950 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:09:14,032 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:09:14,748 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:09:14,768 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:09:14,918 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:09:15,005 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:09:15,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:15 WrapperNode [2019-10-13 23:09:15,006 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:09:15,007 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:09:15,007 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:09:15,007 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:09:15,023 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:15" (1/1) ... [2019-10-13 23:09:15,023 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:15" (1/1) ... [2019-10-13 23:09:15,055 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:15" (1/1) ... [2019-10-13 23:09:15,055 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:15" (1/1) ... [2019-10-13 23:09:15,131 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:15" (1/1) ... [2019-10-13 23:09:15,151 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:15" (1/1) ... [2019-10-13 23:09:15,163 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:15" (1/1) ... [2019-10-13 23:09:15,180 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:09:15,181 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:09:15,181 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:09:15,182 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:09:15,182 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:15" (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 23:09:15,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:09:15,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:09:15,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:09:15,270 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 23:09:15,270 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:09:15,270 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:09:15,271 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:09:15,271 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:09:15,271 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 23:09:15,271 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 23:09:15,272 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 23:09:15,272 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 23:09:15,272 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-13 23:09:15,272 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-13 23:09:15,273 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 23:09:15,273 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 23:09:15,273 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 23:09:15,273 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 23:09:15,274 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 23:09:15,274 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 23:09:15,274 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 23:09:15,275 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 23:09:15,275 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 23:09:15,275 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-13 23:09:15,275 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-13 23:09:15,276 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-13 23:09:15,276 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:09:15,276 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignVerify_spec__1 [2019-10-13 23:09:15,276 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignVerify_spec__2 [2019-10-13 23:09:15,276 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:09:15,277 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 23:09:15,277 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-13 23:09:15,278 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 23:09:15,278 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 23:09:15,278 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 23:09:15,278 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 23:09:15,278 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 23:09:15,279 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 23:09:15,279 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 23:09:15,279 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 23:09:15,279 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 23:09:15,279 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 23:09:15,280 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 23:09:15,280 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 23:09:15,280 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 23:09:15,280 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 23:09:15,280 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 23:09:15,281 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 23:09:15,281 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 23:09:15,281 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 23:09:15,281 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 23:09:15,281 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 23:09:15,281 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 23:09:15,281 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 23:09:15,282 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 23:09:15,282 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 23:09:15,282 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 23:09:15,282 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 23:09:15,282 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 23:09:15,283 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 23:09:15,283 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 23:09:15,283 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 23:09:15,283 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 23:09:15,284 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 23:09:15,284 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 23:09:15,284 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 23:09:15,284 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 23:09:15,284 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 23:09:15,284 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 23:09:15,285 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 23:09:15,285 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 23:09:15,285 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 23:09:15,285 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 23:09:15,286 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:09:15,286 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:09:15,287 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 23:09:15,287 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 23:09:15,288 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 23:09:15,288 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 23:09:15,288 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 23:09:15,290 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 23:09:15,291 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 23:09:15,291 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 23:09:15,291 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 23:09:15,291 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-13 23:09:15,291 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 23:09:15,292 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 23:09:15,292 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 23:09:15,292 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 23:09:15,292 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 23:09:15,292 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 23:09:15,292 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 23:09:15,292 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 23:09:15,293 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 23:09:15,293 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 23:09:15,293 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 23:09:15,293 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 23:09:15,293 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 23:09:15,293 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 23:09:15,293 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 23:09:15,294 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 23:09:15,294 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 23:09:15,294 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 23:09:15,294 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 23:09:15,294 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 23:09:15,295 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 23:09:15,295 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:09:15,295 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:09:15,295 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:09:15,295 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:09:15,296 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:09:15,296 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:09:15,296 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:09:15,296 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:09:15,296 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:09:15,297 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 23:09:15,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:09:15,297 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:09:15,297 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:09:15,298 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:09:15,298 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:09:15,298 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 23:09:15,298 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 23:09:15,299 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 23:09:15,300 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 23:09:15,300 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 23:09:15,300 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 23:09:15,301 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 23:09:15,301 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 23:09:15,301 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 23:09:15,301 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 23:09:15,302 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 23:09:15,302 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 23:09:15,303 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 23:09:15,307 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 23:09:15,307 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 23:09:15,307 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 23:09:15,307 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 23:09:15,307 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 23:09:15,308 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 23:09:15,308 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 23:09:15,309 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 23:09:15,309 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 23:09:15,309 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 23:09:15,316 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 23:09:15,317 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 23:09:15,317 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 23:09:15,317 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 23:09:15,317 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 23:09:15,317 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 23:09:15,317 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 23:09:15,318 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 23:09:15,318 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-13 23:09:15,318 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-13 23:09:15,318 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-13 23:09:15,318 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignVerify_spec__1 [2019-10-13 23:09:15,318 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 23:09:15,318 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-13 23:09:15,319 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-13 23:09:15,319 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignVerify_spec__2 [2019-10-13 23:09:15,319 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:09:15,319 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 23:09:15,320 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 23:09:15,320 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 23:09:15,321 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 23:09:15,321 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-13 23:09:15,321 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 23:09:15,321 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 23:09:15,321 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 23:09:15,321 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 23:09:15,321 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:09:15,322 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 23:09:15,322 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 23:09:15,322 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 23:09:15,322 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 23:09:15,322 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-13 23:09:15,322 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 23:09:15,322 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 23:09:15,323 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 23:09:15,323 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 23:09:15,323 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 23:09:15,323 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 23:09:15,323 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 23:09:15,323 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 23:09:15,323 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 23:09:15,324 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 23:09:15,324 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 23:09:15,324 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 23:09:15,324 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 23:09:15,325 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 23:09:15,325 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 23:09:15,325 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 23:09:15,325 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 23:09:15,325 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 23:09:15,325 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 23:09:15,325 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 23:09:15,325 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 23:09:15,326 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 23:09:15,326 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 23:09:15,326 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 23:09:15,326 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 23:09:15,326 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 23:09:15,326 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 23:09:15,326 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:09:15,327 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:09:15,327 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 23:09:15,327 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 23:09:15,327 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 23:09:15,329 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 23:09:15,329 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 23:09:15,329 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 23:09:15,329 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 23:09:15,330 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 23:09:15,330 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 23:09:15,330 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 23:09:15,330 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 23:09:15,330 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 23:09:15,330 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 23:09:15,330 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 23:09:15,331 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 23:09:15,331 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:09:15,331 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:09:15,331 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:09:15,331 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:09:15,331 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:09:15,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:09:15,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:09:15,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:09:15,332 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:09:15,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:09:15,332 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:09:15,332 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:09:15,333 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:09:15,333 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:09:15,333 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:09:15,333 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:09:15,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:09:15,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:09:15,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:09:20,024 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:09:20,026 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 23:09:20,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:09:20 BoogieIcfgContainer [2019-10-13 23:09:20,093 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:09:20,094 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:09:20,094 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:09:20,097 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:09:20,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:09:13" (1/3) ... [2019-10-13 23:09:20,099 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33137625 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:09:20, skipping insertion in model container [2019-10-13 23:09:20,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:15" (2/3) ... [2019-10-13 23:09:20,099 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33137625 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:09:20, skipping insertion in model container [2019-10-13 23:09:20,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:09:20" (3/3) ... [2019-10-13 23:09:20,102 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec3_product19.cil.c [2019-10-13 23:09:20,113 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:09:20,127 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:09:20,140 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:09:20,181 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:09:20,182 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:09:20,182 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:09:20,182 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:09:20,182 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:09:20,183 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:09:20,187 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:09:20,187 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:09:20,221 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states. [2019-10-13 23:09:20,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2019-10-13 23:09:20,247 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:09:20,249 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:09:20,251 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:09:20,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:09:20,255 INFO L82 PathProgramCache]: Analyzing trace with hash -1238212688, now seen corresponding path program 1 times [2019-10-13 23:09:20,263 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:09:20,263 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732791818] [2019-10-13 23:09:20,264 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:20,264 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:20,264 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:09:20,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:09:20,863 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:09:20,864 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732791818] [2019-10-13 23:09:20,865 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:09:20,865 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:09:20,866 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763878338] [2019-10-13 23:09:20,871 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:09:20,871 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:09:20,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:09:20,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:09:20,888 INFO L87 Difference]: Start difference. First operand 370 states. Second operand 2 states. [2019-10-13 23:09:20,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:09:20,970 INFO L93 Difference]: Finished difference Result 548 states and 647 transitions. [2019-10-13 23:09:20,970 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:09:20,974 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 134 [2019-10-13 23:09:20,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:09:21,005 INFO L225 Difference]: With dead ends: 548 [2019-10-13 23:09:21,006 INFO L226 Difference]: Without dead ends: 349 [2019-10-13 23:09:21,012 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 23:09:21,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2019-10-13 23:09:21,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 349. [2019-10-13 23:09:21,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2019-10-13 23:09:21,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 410 transitions. [2019-10-13 23:09:21,093 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 410 transitions. Word has length 134 [2019-10-13 23:09:21,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:09:21,095 INFO L462 AbstractCegarLoop]: Abstraction has 349 states and 410 transitions. [2019-10-13 23:09:21,095 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:09:21,095 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 410 transitions. [2019-10-13 23:09:21,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2019-10-13 23:09:21,100 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:09:21,100 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:09:21,101 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:09:21,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:09:21,101 INFO L82 PathProgramCache]: Analyzing trace with hash 944842773, now seen corresponding path program 1 times [2019-10-13 23:09:21,101 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:09:21,101 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063999820] [2019-10-13 23:09:21,102 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:21,102 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:21,102 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:09:21,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:09:21,332 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:09:21,332 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063999820] [2019-10-13 23:09:21,333 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:09:21,333 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:09:21,333 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071506314] [2019-10-13 23:09:21,335 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:09:21,335 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:09:21,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:09:21,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:09:21,336 INFO L87 Difference]: Start difference. First operand 349 states and 410 transitions. Second operand 3 states. [2019-10-13 23:09:21,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:09:21,382 INFO L93 Difference]: Finished difference Result 533 states and 615 transitions. [2019-10-13 23:09:21,383 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:09:21,383 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 135 [2019-10-13 23:09:21,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:09:21,390 INFO L225 Difference]: With dead ends: 533 [2019-10-13 23:09:21,391 INFO L226 Difference]: Without dead ends: 351 [2019-10-13 23:09:21,395 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 23:09:21,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2019-10-13 23:09:21,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 351. [2019-10-13 23:09:21,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 351 states. [2019-10-13 23:09:21,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 412 transitions. [2019-10-13 23:09:21,439 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 412 transitions. Word has length 135 [2019-10-13 23:09:21,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:09:21,439 INFO L462 AbstractCegarLoop]: Abstraction has 351 states and 412 transitions. [2019-10-13 23:09:21,440 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:09:21,440 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 412 transitions. [2019-10-13 23:09:21,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2019-10-13 23:09:21,443 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:09:21,443 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] [2019-10-13 23:09:21,443 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:09:21,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:09:21,444 INFO L82 PathProgramCache]: Analyzing trace with hash -2105343418, now seen corresponding path program 1 times [2019-10-13 23:09:21,444 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:09:21,444 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722188628] [2019-10-13 23:09:21,444 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:21,445 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:21,445 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:09:21,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:09:21,766 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:09:21,767 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722188628] [2019-10-13 23:09:21,767 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:09:21,767 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:09:21,767 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451514868] [2019-10-13 23:09:21,768 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:09:21,768 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:09:21,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:09:21,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:09:21,769 INFO L87 Difference]: Start difference. First operand 351 states and 412 transitions. Second operand 3 states. [2019-10-13 23:09:21,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:09:21,831 INFO L93 Difference]: Finished difference Result 684 states and 831 transitions. [2019-10-13 23:09:21,831 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:09:21,832 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 140 [2019-10-13 23:09:21,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:09:21,835 INFO L225 Difference]: With dead ends: 684 [2019-10-13 23:09:21,836 INFO L226 Difference]: Without dead ends: 391 [2019-10-13 23:09:21,839 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 23:09:21,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2019-10-13 23:09:21,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 390. [2019-10-13 23:09:21,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 390 states. [2019-10-13 23:09:21,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 480 transitions. [2019-10-13 23:09:21,874 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 480 transitions. Word has length 140 [2019-10-13 23:09:21,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:09:21,875 INFO L462 AbstractCegarLoop]: Abstraction has 390 states and 480 transitions. [2019-10-13 23:09:21,875 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:09:21,875 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 480 transitions. [2019-10-13 23:09:21,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2019-10-13 23:09:21,878 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:09:21,878 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] [2019-10-13 23:09:21,879 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:09:21,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:09:21,879 INFO L82 PathProgramCache]: Analyzing trace with hash -488220095, now seen corresponding path program 1 times [2019-10-13 23:09:21,879 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:09:21,880 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759876365] [2019-10-13 23:09:21,880 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:21,880 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:21,880 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:09:21,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:09:22,451 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 23:09:22,451 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759876365] [2019-10-13 23:09:22,451 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:09:22,452 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2019-10-13 23:09:22,452 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010727567] [2019-10-13 23:09:22,453 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2019-10-13 23:09:22,454 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:09:22,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2019-10-13 23:09:22,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2019-10-13 23:09:22,458 INFO L87 Difference]: Start difference. First operand 390 states and 480 transitions. Second operand 23 states. [2019-10-13 23:09:32,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:09:32,552 INFO L93 Difference]: Finished difference Result 1005 states and 1173 transitions. [2019-10-13 23:09:32,553 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2019-10-13 23:09:32,553 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 141 [2019-10-13 23:09:32,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:09:32,559 INFO L225 Difference]: With dead ends: 1005 [2019-10-13 23:09:32,560 INFO L226 Difference]: Without dead ends: 737 [2019-10-13 23:09:32,563 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 587 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=351, Invalid=2405, Unknown=0, NotChecked=0, Total=2756 [2019-10-13 23:09:32,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 737 states. [2019-10-13 23:09:32,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 737 to 727. [2019-10-13 23:09:32,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 727 states. [2019-10-13 23:09:32,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 727 states to 727 states and 849 transitions. [2019-10-13 23:09:32,614 INFO L78 Accepts]: Start accepts. Automaton has 727 states and 849 transitions. Word has length 141 [2019-10-13 23:09:32,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:09:32,615 INFO L462 AbstractCegarLoop]: Abstraction has 727 states and 849 transitions. [2019-10-13 23:09:32,615 INFO L463 AbstractCegarLoop]: Interpolant automaton has 23 states. [2019-10-13 23:09:32,615 INFO L276 IsEmpty]: Start isEmpty. Operand 727 states and 849 transitions. [2019-10-13 23:09:32,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2019-10-13 23:09:32,618 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:09:32,619 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, 1, 1, 1] [2019-10-13 23:09:32,619 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:09:32,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:09:32,619 INFO L82 PathProgramCache]: Analyzing trace with hash 35846808, now seen corresponding path program 1 times [2019-10-13 23:09:32,620 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:09:32,620 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387488100] [2019-10-13 23:09:32,620 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:32,620 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:32,620 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:09:32,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:09:32,779 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:09:32,779 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387488100] [2019-10-13 23:09:32,780 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [818758452] [2019-10-13 23:09:32,780 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 23:09:33,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:09:33,576 INFO L256 TraceCheckSpWp]: Trace formula consists of 2541 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-13 23:09:33,605 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:09:33,690 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:09:33,691 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:09:33,893 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:09:33,894 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1414612292] [2019-10-13 23:09:33,932 INFO L162 IcfgInterpreter]: Started Sifa with 136 locations of interest [2019-10-13 23:09:33,933 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 23:09:33,940 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 23:09:33,947 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 23:09:33,948 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs