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 0.1.24-36ac518-m [2019-10-07 14:52:21,448 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 14:52:21,451 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 14:52:21,464 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 14:52:21,464 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 14:52:21,466 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 14:52:21,469 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 14:52:21,479 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 14:52:21,481 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 14:52:21,482 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 14:52:21,483 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 14:52:21,485 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 14:52:21,485 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 14:52:21,489 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 14:52:21,491 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 14:52:21,493 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 14:52:21,495 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 14:52:21,498 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 14:52:21,499 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 14:52:21,505 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 14:52:21,510 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 14:52:21,513 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 14:52:21,516 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 14:52:21,517 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 14:52:21,520 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 14:52:21,520 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 14:52:21,521 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 14:52:21,522 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 14:52:21,524 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 14:52:21,525 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 14:52:21,525 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 14:52:21,526 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 14:52:21,527 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 14:52:21,527 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 14:52:21,529 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 14:52:21,529 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 14:52:21,530 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 14:52:21,530 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 14:52:21,530 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 14:52:21,531 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 14:52:21,533 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 14:52:21,534 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-07 14:52:21,569 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 14:52:21,569 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 14:52:21,572 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 14:52:21,572 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 14:52:21,575 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 14:52:21,575 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 14:52:21,575 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 14:52:21,576 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 14:52:21,576 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 14:52:21,576 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 14:52:21,576 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 14:52:21,576 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 14:52:21,576 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 14:52:21,577 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 14:52:21,577 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 14:52:21,577 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 14:52:21,578 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 14:52:21,578 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 14:52:21,579 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 14:52:21,579 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 14:52:21,579 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 14:52:21,579 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:52:21,579 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 14:52:21,580 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 14:52:21,580 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 14:52:21,580 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 14:52:21,580 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 14:52:21,580 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 14:52:21,580 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-07 14:52:21,871 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 14:52:21,885 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 14:52:21,889 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 14:52:21,891 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 14:52:21,891 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 14:52:21,892 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec3_product19.cil.c [2019-10-07 14:52:21,956 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3acc8084/9aa7dd7c7c994670a0ceab3628c27a90/FLAG5c2f054b3 [2019-10-07 14:52:22,624 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 14:52:22,625 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec3_product19.cil.c [2019-10-07 14:52:22,647 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3acc8084/9aa7dd7c7c994670a0ceab3628c27a90/FLAG5c2f054b3 [2019-10-07 14:52:22,799 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3acc8084/9aa7dd7c7c994670a0ceab3628c27a90 [2019-10-07 14:52:22,809 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 14:52:22,810 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 14:52:22,813 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 14:52:22,813 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 14:52:22,816 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 14:52:22,817 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:52:22" (1/1) ... [2019-10-07 14:52:22,820 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29914bb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:52:22, skipping insertion in model container [2019-10-07 14:52:22,820 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:52:22" (1/1) ... [2019-10-07 14:52:22,826 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 14:52:22,914 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 14:52:23,773 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:52:23,809 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 14:52:23,969 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:52:24,068 INFO L192 MainTranslator]: Completed translation [2019-10-07 14:52:24,068 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:52:24 WrapperNode [2019-10-07 14:52:24,069 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 14:52:24,070 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 14:52:24,070 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 14:52:24,070 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 14:52:24,087 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:52:24" (1/1) ... [2019-10-07 14:52:24,088 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:52:24" (1/1) ... [2019-10-07 14:52:24,120 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:52:24" (1/1) ... [2019-10-07 14:52:24,121 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:52:24" (1/1) ... [2019-10-07 14:52:24,180 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:52:24" (1/1) ... [2019-10-07 14:52:24,220 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:52:24" (1/1) ... [2019-10-07 14:52:24,237 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:52:24" (1/1) ... [2019-10-07 14:52:24,256 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 14:52:24,257 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 14:52:24,257 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 14:52:24,257 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 14:52:24,259 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:52:24" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:52:24,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 14:52:24,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 14:52:24,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 14:52:24,324 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-07 14:52:24,324 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 14:52:24,325 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 14:52:24,325 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 14:52:24,325 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 14:52:24,325 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-07 14:52:24,326 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-07 14:52:24,326 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-07 14:52:24,326 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-07 14:52:24,326 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-07 14:52:24,326 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-07 14:52:24,327 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-07 14:52:24,327 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-07 14:52:24,327 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-07 14:52:24,327 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-07 14:52:24,328 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-07 14:52:24,328 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-07 14:52:24,328 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-07 14:52:24,328 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-07 14:52:24,329 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-07 14:52:24,329 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-07 14:52:24,329 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-07 14:52:24,329 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-07 14:52:24,330 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 14:52:24,330 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignVerify_spec__1 [2019-10-07 14:52:24,330 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignVerify_spec__2 [2019-10-07 14:52:24,330 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 14:52:24,330 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-07 14:52:24,331 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-07 14:52:24,331 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-07 14:52:24,331 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-07 14:52:24,331 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-07 14:52:24,331 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-07 14:52:24,331 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-07 14:52:24,332 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-07 14:52:24,332 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-07 14:52:24,332 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-07 14:52:24,332 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-07 14:52:24,332 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-07 14:52:24,332 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-07 14:52:24,333 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-07 14:52:24,333 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-07 14:52:24,333 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-07 14:52:24,333 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-07 14:52:24,333 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-07 14:52:24,333 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-07 14:52:24,334 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-07 14:52:24,334 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-07 14:52:24,334 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-07 14:52:24,334 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-07 14:52:24,334 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-07 14:52:24,334 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-07 14:52:24,334 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-07 14:52:24,335 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-07 14:52:24,335 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-07 14:52:24,335 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-07 14:52:24,335 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-07 14:52:24,335 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-07 14:52:24,336 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-07 14:52:24,336 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-07 14:52:24,336 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-07 14:52:24,336 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-07 14:52:24,336 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-07 14:52:24,336 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-07 14:52:24,336 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-07 14:52:24,337 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-07 14:52:24,337 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-07 14:52:24,337 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-07 14:52:24,337 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-07 14:52:24,337 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-07 14:52:24,337 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 14:52:24,338 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 14:52:24,338 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-07 14:52:24,338 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-07 14:52:24,338 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-07 14:52:24,338 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-07 14:52:24,338 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-07 14:52:24,338 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-07 14:52:24,339 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-07 14:52:24,339 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-07 14:52:24,339 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-07 14:52:24,339 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-07 14:52:24,339 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-07 14:52:24,339 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-07 14:52:24,340 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-07 14:52:24,340 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-07 14:52:24,340 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-07 14:52:24,340 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-07 14:52:24,340 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-07 14:52:24,340 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-07 14:52:24,341 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-07 14:52:24,341 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-07 14:52:24,341 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-07 14:52:24,341 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-07 14:52:24,341 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-07 14:52:24,341 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-07 14:52:24,341 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-07 14:52:24,342 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-07 14:52:24,342 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-07 14:52:24,342 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-07 14:52:24,342 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-07 14:52:24,342 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-07 14:52:24,342 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-07 14:52:24,343 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 14:52:24,343 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 14:52:24,343 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 14:52:24,343 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 14:52:24,343 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 14:52:24,343 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 14:52:24,343 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 14:52:24,344 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 14:52:24,344 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 14:52:24,344 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-07 14:52:24,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 14:52:24,344 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 14:52:24,344 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 14:52:24,345 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 14:52:24,345 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 14:52:24,345 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-07 14:52:24,345 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-07 14:52:24,345 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-07 14:52:24,345 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-07 14:52:24,346 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-07 14:52:24,346 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-07 14:52:24,346 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-07 14:52:24,346 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-07 14:52:24,346 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-07 14:52:24,346 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-07 14:52:24,347 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-07 14:52:24,347 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-07 14:52:24,347 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-07 14:52:24,347 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-07 14:52:24,347 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-07 14:52:24,347 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-07 14:52:24,347 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-07 14:52:24,348 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-07 14:52:24,348 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-07 14:52:24,348 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-07 14:52:24,350 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-07 14:52:24,350 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-07 14:52:24,350 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-07 14:52:24,350 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-07 14:52:24,351 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-07 14:52:24,351 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-07 14:52:24,351 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-07 14:52:24,351 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-07 14:52:24,351 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-07 14:52:24,351 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-07 14:52:24,351 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-07 14:52:24,352 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-07 14:52:24,352 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-07 14:52:24,352 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-07 14:52:24,352 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignVerify_spec__1 [2019-10-07 14:52:24,353 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-07 14:52:24,353 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-07 14:52:24,353 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-07 14:52:24,354 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignVerify_spec__2 [2019-10-07 14:52:24,354 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 14:52:24,354 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-07 14:52:24,354 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-07 14:52:24,354 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-07 14:52:24,354 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-07 14:52:24,354 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-07 14:52:24,355 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-07 14:52:24,355 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-07 14:52:24,355 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-07 14:52:24,355 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-07 14:52:24,355 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 14:52:24,355 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-07 14:52:24,355 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-07 14:52:24,356 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-07 14:52:24,356 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-07 14:52:24,356 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-07 14:52:24,356 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-07 14:52:24,356 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-07 14:52:24,356 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-07 14:52:24,356 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-07 14:52:24,357 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-07 14:52:24,357 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-07 14:52:24,357 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-07 14:52:24,357 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-07 14:52:24,358 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-07 14:52:24,358 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-07 14:52:24,358 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-07 14:52:24,358 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-07 14:52:24,358 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-07 14:52:24,358 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-07 14:52:24,359 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-07 14:52:24,359 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-07 14:52:24,359 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-07 14:52:24,359 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-07 14:52:24,359 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-07 14:52:24,359 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-07 14:52:24,359 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-07 14:52:24,359 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-07 14:52:24,360 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-07 14:52:24,360 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-07 14:52:24,360 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-07 14:52:24,360 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-07 14:52:24,360 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-07 14:52:24,360 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 14:52:24,360 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 14:52:24,361 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-07 14:52:24,361 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-07 14:52:24,361 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-07 14:52:24,361 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-07 14:52:24,363 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-07 14:52:24,363 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-07 14:52:24,363 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-07 14:52:24,363 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-07 14:52:24,363 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-07 14:52:24,363 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-07 14:52:24,364 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-07 14:52:24,364 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-07 14:52:24,364 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-07 14:52:24,364 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-07 14:52:24,364 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-07 14:52:24,364 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 14:52:24,365 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 14:52:24,365 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 14:52:24,365 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 14:52:24,365 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 14:52:24,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 14:52:24,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 14:52:24,366 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 14:52:24,366 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 14:52:24,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 14:52:24,366 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 14:52:24,366 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 14:52:24,366 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 14:52:24,367 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 14:52:24,367 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 14:52:24,367 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 14:52:24,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 14:52:24,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 14:52:24,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 14:52:29,041 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 14:52:29,041 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-07 14:52:29,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:52:29 BoogieIcfgContainer [2019-10-07 14:52:29,043 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 14:52:29,044 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 14:52:29,044 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 14:52:29,047 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 14:52:29,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 02:52:22" (1/3) ... [2019-10-07 14:52:29,048 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b37dc0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:52:29, skipping insertion in model container [2019-10-07 14:52:29,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:52:24" (2/3) ... [2019-10-07 14:52:29,049 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b37dc0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:52:29, skipping insertion in model container [2019-10-07 14:52:29,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:52:29" (3/3) ... [2019-10-07 14:52:29,051 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec3_product19.cil.c [2019-10-07 14:52:29,062 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 14:52:29,071 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 14:52:29,083 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 14:52:29,122 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 14:52:29,123 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 14:52:29,123 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 14:52:29,123 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 14:52:29,123 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 14:52:29,124 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 14:52:29,124 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 14:52:29,128 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 14:52:29,169 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states. [2019-10-07 14:52:29,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2019-10-07 14:52:29,186 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:52:29,187 INFO L385 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] [2019-10-07 14:52:29,189 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:52:29,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:52:29,196 INFO L82 PathProgramCache]: Analyzing trace with hash -1238212688, now seen corresponding path program 1 times [2019-10-07 14:52:29,206 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:52:29,206 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:52:29,207 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:52:29,207 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:52:29,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:52:29,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:52:29,874 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 14:52:29,874 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:52:29,875 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:52:29,875 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 14:52:29,880 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 14:52:29,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 14:52:29,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 14:52:29,898 INFO L87 Difference]: Start difference. First operand 370 states. Second operand 2 states. [2019-10-07 14:52:29,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:52:29,994 INFO L93 Difference]: Finished difference Result 548 states and 647 transitions. [2019-10-07 14:52:29,994 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 14:52:29,996 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 134 [2019-10-07 14:52:29,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:52:30,030 INFO L225 Difference]: With dead ends: 548 [2019-10-07 14:52:30,031 INFO L226 Difference]: Without dead ends: 349 [2019-10-07 14:52:30,045 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 14:52:30,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2019-10-07 14:52:30,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 349. [2019-10-07 14:52:30,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2019-10-07 14:52:30,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 410 transitions. [2019-10-07 14:52:30,186 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 410 transitions. Word has length 134 [2019-10-07 14:52:30,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:52:30,190 INFO L462 AbstractCegarLoop]: Abstraction has 349 states and 410 transitions. [2019-10-07 14:52:30,190 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 14:52:30,190 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 410 transitions. [2019-10-07 14:52:30,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2019-10-07 14:52:30,200 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:52:30,200 INFO L385 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] [2019-10-07 14:52:30,200 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:52:30,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:52:30,201 INFO L82 PathProgramCache]: Analyzing trace with hash 944842773, now seen corresponding path program 1 times [2019-10-07 14:52:30,201 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:52:30,201 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:52:30,202 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:52:30,202 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:52:30,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:52:30,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:52:30,465 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 14:52:30,465 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:52:30,465 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:52:30,466 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:52:30,468 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:52:30,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:52:30,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:52:30,468 INFO L87 Difference]: Start difference. First operand 349 states and 410 transitions. Second operand 3 states. [2019-10-07 14:52:30,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:52:30,508 INFO L93 Difference]: Finished difference Result 533 states and 615 transitions. [2019-10-07 14:52:30,509 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:52:30,509 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 135 [2019-10-07 14:52:30,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:52:30,512 INFO L225 Difference]: With dead ends: 533 [2019-10-07 14:52:30,513 INFO L226 Difference]: Without dead ends: 351 [2019-10-07 14:52:30,514 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:52:30,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2019-10-07 14:52:30,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 351. [2019-10-07 14:52:30,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 351 states. [2019-10-07 14:52:30,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 412 transitions. [2019-10-07 14:52:30,537 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 412 transitions. Word has length 135 [2019-10-07 14:52:30,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:52:30,538 INFO L462 AbstractCegarLoop]: Abstraction has 351 states and 412 transitions. [2019-10-07 14:52:30,538 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:52:30,538 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 412 transitions. [2019-10-07 14:52:30,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2019-10-07 14:52:30,541 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:52:30,542 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:52:30,542 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:52:30,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:52:30,542 INFO L82 PathProgramCache]: Analyzing trace with hash -2105343418, now seen corresponding path program 1 times [2019-10-07 14:52:30,543 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:52:30,543 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:52:30,543 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:52:30,543 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:52:30,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:52:30,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:52:30,788 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 14:52:30,788 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:52:30,789 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:52:30,789 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:52:30,790 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:52:30,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:52:30,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:52:30,791 INFO L87 Difference]: Start difference. First operand 351 states and 412 transitions. Second operand 3 states. [2019-10-07 14:52:30,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:52:30,858 INFO L93 Difference]: Finished difference Result 684 states and 831 transitions. [2019-10-07 14:52:30,859 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:52:30,859 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 140 [2019-10-07 14:52:30,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:52:30,863 INFO L225 Difference]: With dead ends: 684 [2019-10-07 14:52:30,865 INFO L226 Difference]: Without dead ends: 391 [2019-10-07 14:52:30,867 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:52:30,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2019-10-07 14:52:30,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 390. [2019-10-07 14:52:30,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 390 states. [2019-10-07 14:52:30,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 480 transitions. [2019-10-07 14:52:30,906 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 480 transitions. Word has length 140 [2019-10-07 14:52:30,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:52:30,907 INFO L462 AbstractCegarLoop]: Abstraction has 390 states and 480 transitions. [2019-10-07 14:52:30,907 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:52:30,907 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 480 transitions. [2019-10-07 14:52:30,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2019-10-07 14:52:30,914 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:52:30,915 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:52:30,915 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:52:30,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:52:30,916 INFO L82 PathProgramCache]: Analyzing trace with hash -488220095, now seen corresponding path program 1 times [2019-10-07 14:52:30,916 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:52:30,916 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:52:30,916 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:52:30,916 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:52:30,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:52:31,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:52:31,556 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 14:52:31,557 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:52:31,560 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:52:31,560 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2019-10-07 14:52:31,562 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2019-10-07 14:52:31,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2019-10-07 14:52:31,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2019-10-07 14:52:31,563 INFO L87 Difference]: Start difference. First operand 390 states and 480 transitions. Second operand 23 states. [2019-10-07 14:52:41,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:52:41,052 INFO L93 Difference]: Finished difference Result 1005 states and 1173 transitions. [2019-10-07 14:52:41,052 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2019-10-07 14:52:41,052 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 141 [2019-10-07 14:52:41,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:52:41,058 INFO L225 Difference]: With dead ends: 1005 [2019-10-07 14:52:41,058 INFO L226 Difference]: Without dead ends: 737 [2019-10-07 14:52:41,061 INFO L606 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 [2019-10-07 14:52:41,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 737 states. [2019-10-07 14:52:41,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 737 to 727. [2019-10-07 14:52:41,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 727 states. [2019-10-07 14:52:41,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 727 states to 727 states and 849 transitions. [2019-10-07 14:52:41,200 INFO L78 Accepts]: Start accepts. Automaton has 727 states and 849 transitions. Word has length 141 [2019-10-07 14:52:41,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:52:41,201 INFO L462 AbstractCegarLoop]: Abstraction has 727 states and 849 transitions. [2019-10-07 14:52:41,201 INFO L463 AbstractCegarLoop]: Interpolant automaton has 23 states. [2019-10-07 14:52:41,201 INFO L276 IsEmpty]: Start isEmpty. Operand 727 states and 849 transitions. [2019-10-07 14:52:41,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2019-10-07 14:52:41,204 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:52:41,204 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:52:41,205 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:52:41,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:52:41,205 INFO L82 PathProgramCache]: Analyzing trace with hash 35846808, now seen corresponding path program 1 times [2019-10-07 14:52:41,205 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:52:41,205 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:52:41,206 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:52:41,206 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:52:41,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:52:41,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:52:41,385 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 14:52:41,386 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:52:41,386 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:52:41,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:52:42,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:52:42,114 INFO L256 TraceCheckSpWp]: Trace formula consists of 2541 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:52:42,144 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:52:42,227 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 14:52:42,227 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:52:42,472 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 14:52:42,472 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 14:52:42,524 INFO L162 IcfgInterpreter]: Started Sifa with 136 locations of interest [2019-10-07 14:52:42,525 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 14:52:42,533 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 14:52:42,543 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 14:52:42,544 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 14:53:47,048 WARN L191 SmtUtils]: Spent 425.00 ms on a formula simplification that was a NOOP. DAG size: 689 [2019-10-07 14:53:51,596 WARN L191 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 316 DAG size of output: 257 [2019-10-07 14:53:51,973 WARN L191 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 730 [2019-10-07 14:53:52,319 WARN L191 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 730 [2019-10-07 14:53:52,665 WARN L191 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 730 [2019-10-07 14:53:52,844 WARN L191 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 451 [2019-10-07 14:53:53,558 WARN L191 SmtUtils]: Spent 712.00 ms on a formula simplification that was a NOOP. DAG size: 1029 [2019-10-07 14:53:54,313 WARN L191 SmtUtils]: Spent 714.00 ms on a formula simplification that was a NOOP. DAG size: 1029 [2019-10-07 14:53:55,017 WARN L191 SmtUtils]: Spent 701.00 ms on a formula simplification that was a NOOP. DAG size: 1029 [2019-10-07 14:53:55,155 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 451 [2019-10-07 14:53:55,862 WARN L191 SmtUtils]: Spent 705.00 ms on a formula simplification that was a NOOP. DAG size: 1029 [2019-10-07 14:53:57,075 WARN L191 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 1031 DAG size of output: 1029 [2019-10-07 14:53:57,739 WARN L191 SmtUtils]: Spent 660.00 ms on a formula simplification that was a NOOP. DAG size: 1029 [2019-10-07 14:53:57,950 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 451 [2019-10-07 14:53:58,631 WARN L191 SmtUtils]: Spent 678.00 ms on a formula simplification that was a NOOP. DAG size: 1029 [2019-10-07 14:53:59,283 WARN L191 SmtUtils]: Spent 649.00 ms on a formula simplification that was a NOOP. DAG size: 1029 [2019-10-07 14:53:59,943 WARN L191 SmtUtils]: Spent 655.00 ms on a formula simplification that was a NOOP. DAG size: 1029 [2019-10-07 14:54:00,070 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 451 [2019-10-07 14:54:00,693 WARN L191 SmtUtils]: Spent 621.00 ms on a formula simplification that was a NOOP. DAG size: 1029 [2019-10-07 14:54:00,726 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 562 for LOIs [2019-10-07 14:54:01,110 WARN L191 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 655 [2019-10-07 14:54:01,244 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 655 [2019-10-07 14:54:01,371 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 451 [2019-10-07 14:54:01,842 WARN L191 SmtUtils]: Spent 470.00 ms on a formula simplification that was a NOOP. DAG size: 954 [2019-10-07 14:54:01,843 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1070 for LOIs [2019-10-07 14:54:02,495 WARN L191 SmtUtils]: Spent 650.00 ms on a formula simplification that was a NOOP. DAG size: 1070 [2019-10-07 14:54:03,111 WARN L191 SmtUtils]: Spent 612.00 ms on a formula simplification that was a NOOP. DAG size: 1070 [2019-10-07 14:54:03,362 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 14:54:04,241 WARN L191 SmtUtils]: Spent 877.00 ms on a formula simplification that was a NOOP. DAG size: 1193 [2019-10-07 14:54:04,877 WARN L191 SmtUtils]: Spent 621.00 ms on a formula simplification that was a NOOP. DAG size: 1070 [2019-10-07 14:54:05,532 WARN L191 SmtUtils]: Spent 651.00 ms on a formula simplification that was a NOOP. DAG size: 1070 [2019-10-07 14:54:05,737 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 14:54:06,614 WARN L191 SmtUtils]: Spent 875.00 ms on a formula simplification that was a NOOP. DAG size: 1193 [2019-10-07 14:54:07,296 WARN L191 SmtUtils]: Spent 649.00 ms on a formula simplification that was a NOOP. DAG size: 1070 [2019-10-07 14:54:07,916 WARN L191 SmtUtils]: Spent 614.00 ms on a formula simplification that was a NOOP. DAG size: 1070 [2019-10-07 14:54:08,150 WARN L191 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 14:54:09,014 WARN L191 SmtUtils]: Spent 862.00 ms on a formula simplification that was a NOOP. DAG size: 1193 [2019-10-07 14:54:10,166 WARN L191 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 1195 DAG size of output: 1070 [2019-10-07 14:54:10,787 WARN L191 SmtUtils]: Spent 618.00 ms on a formula simplification that was a NOOP. DAG size: 1070 [2019-10-07 14:54:11,084 WARN L191 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 14:54:11,999 WARN L191 SmtUtils]: Spent 912.00 ms on a formula simplification that was a NOOP. DAG size: 1193 [2019-10-07 14:54:12,636 WARN L191 SmtUtils]: Spent 620.00 ms on a formula simplification that was a NOOP. DAG size: 1070 [2019-10-07 14:54:13,260 WARN L191 SmtUtils]: Spent 621.00 ms on a formula simplification that was a NOOP. DAG size: 1070 [2019-10-07 14:54:13,550 WARN L191 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 14:54:14,429 WARN L191 SmtUtils]: Spent 877.00 ms on a formula simplification that was a NOOP. DAG size: 1193 [2019-10-07 14:54:15,073 WARN L191 SmtUtils]: Spent 640.00 ms on a formula simplification that was a NOOP. DAG size: 1070 [2019-10-07 14:54:15,696 WARN L191 SmtUtils]: Spent 619.00 ms on a formula simplification that was a NOOP. DAG size: 1070 [2019-10-07 14:54:15,900 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 14:54:16,766 WARN L191 SmtUtils]: Spent 864.00 ms on a formula simplification that was a NOOP. DAG size: 1193 [2019-10-07 14:54:17,377 WARN L191 SmtUtils]: Spent 608.00 ms on a formula simplification that was a NOOP. DAG size: 1070 [2019-10-07 14:54:18,011 WARN L191 SmtUtils]: Spent 631.00 ms on a formula simplification that was a NOOP. DAG size: 1070 [2019-10-07 14:54:18,220 WARN L191 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 14:54:19,111 WARN L191 SmtUtils]: Spent 889.00 ms on a formula simplification that was a NOOP. DAG size: 1193 [2019-10-07 14:54:19,728 WARN L191 SmtUtils]: Spent 613.00 ms on a formula simplification that was a NOOP. DAG size: 1070 [2019-10-07 14:54:20,340 WARN L191 SmtUtils]: Spent 609.00 ms on a formula simplification that was a NOOP. DAG size: 1070 [2019-10-07 14:54:20,541 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 14:54:21,415 WARN L191 SmtUtils]: Spent 872.00 ms on a formula simplification that was a NOOP. DAG size: 1193 [2019-10-07 14:54:22,032 WARN L191 SmtUtils]: Spent 614.00 ms on a formula simplification that was a NOOP. DAG size: 1070 [2019-10-07 14:54:22,646 WARN L191 SmtUtils]: Spent 610.00 ms on a formula simplification that was a NOOP. DAG size: 1070 [2019-10-07 14:54:22,848 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 14:54:23,711 WARN L191 SmtUtils]: Spent 861.00 ms on a formula simplification that was a NOOP. DAG size: 1193 [2019-10-07 14:54:24,336 WARN L191 SmtUtils]: Spent 621.00 ms on a formula simplification that was a NOOP. DAG size: 1070 [2019-10-07 14:54:24,977 WARN L191 SmtUtils]: Spent 638.00 ms on a formula simplification that was a NOOP. DAG size: 1070 [2019-10-07 14:54:25,181 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 14:54:26,048 WARN L191 SmtUtils]: Spent 865.00 ms on a formula simplification that was a NOOP. DAG size: 1193 [2019-10-07 14:54:26,671 WARN L191 SmtUtils]: Spent 620.00 ms on a formula simplification that was a NOOP. DAG size: 1070 [2019-10-07 14:54:27,287 WARN L191 SmtUtils]: Spent 612.00 ms on a formula simplification that was a NOOP. DAG size: 1070 [2019-10-07 14:54:27,489 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 14:54:28,362 WARN L191 SmtUtils]: Spent 871.00 ms on a formula simplification that was a NOOP. DAG size: 1193 [2019-10-07 14:54:28,988 WARN L191 SmtUtils]: Spent 623.00 ms on a formula simplification that was a NOOP. DAG size: 1070 [2019-10-07 14:54:29,610 WARN L191 SmtUtils]: Spent 618.00 ms on a formula simplification that was a NOOP. DAG size: 1070 [2019-10-07 14:54:29,816 WARN L191 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 14:54:30,679 WARN L191 SmtUtils]: Spent 861.00 ms on a formula simplification that was a NOOP. DAG size: 1193 [2019-10-07 14:54:31,294 WARN L191 SmtUtils]: Spent 613.00 ms on a formula simplification that was a NOOP. DAG size: 1070 [2019-10-07 14:54:31,914 WARN L191 SmtUtils]: Spent 616.00 ms on a formula simplification that was a NOOP. DAG size: 1070 [2019-10-07 14:54:32,116 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 14:54:32,987 WARN L191 SmtUtils]: Spent 868.00 ms on a formula simplification that was a NOOP. DAG size: 1193 [2019-10-07 14:54:33,932 WARN L191 SmtUtils]: Spent 899.00 ms on a formula simplification that was a NOOP. DAG size: 1193 [2019-10-07 14:54:34,804 WARN L191 SmtUtils]: Spent 869.00 ms on a formula simplification that was a NOOP. DAG size: 1193 [2019-10-07 14:54:35,035 WARN L191 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 14:54:35,901 WARN L191 SmtUtils]: Spent 864.00 ms on a formula simplification that was a NOOP. DAG size: 1193 [2019-10-07 14:54:37,486 WARN L191 SmtUtils]: Spent 1.56 s on a formula simplification. DAG size of input: 1195 DAG size of output: 1193 [2019-10-07 14:54:38,348 WARN L191 SmtUtils]: Spent 857.00 ms on a formula simplification that was a NOOP. DAG size: 1193 [2019-10-07 14:54:38,577 WARN L191 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 14:54:39,437 WARN L191 SmtUtils]: Spent 858.00 ms on a formula simplification that was a NOOP. DAG size: 1193 [2019-10-07 14:54:40,303 WARN L191 SmtUtils]: Spent 863.00 ms on a formula simplification that was a NOOP. DAG size: 1193 [2019-10-07 14:54:41,178 WARN L191 SmtUtils]: Spent 871.00 ms on a formula simplification that was a NOOP. DAG size: 1193 [2019-10-07 14:54:41,380 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 14:54:42,243 WARN L191 SmtUtils]: Spent 861.00 ms on a formula simplification that was a NOOP. DAG size: 1193 [2019-10-07 14:54:43,146 WARN L191 SmtUtils]: Spent 864.00 ms on a formula simplification that was a NOOP. DAG size: 1197 [2019-10-07 14:54:44,003 WARN L191 SmtUtils]: Spent 853.00 ms on a formula simplification that was a NOOP. DAG size: 1197 [2019-10-07 14:54:44,213 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 578 [2019-10-07 14:54:45,063 WARN L191 SmtUtils]: Spent 848.00 ms on a formula simplification that was a NOOP. DAG size: 1197 [2019-10-07 14:54:46,552 WARN L191 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 1199 DAG size of output: 1195 [2019-10-07 14:54:47,423 WARN L191 SmtUtils]: Spent 868.00 ms on a formula simplification that was a NOOP. DAG size: 1195 [2019-10-07 14:54:47,640 WARN L191 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 578 [2019-10-07 14:54:48,496 WARN L191 SmtUtils]: Spent 854.00 ms on a formula simplification that was a NOOP. DAG size: 1197 [2019-10-07 14:54:49,827 WARN L191 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 1199 DAG size of output: 1195 [2019-10-07 14:54:50,700 WARN L191 SmtUtils]: Spent 870.00 ms on a formula simplification that was a NOOP. DAG size: 1195 [2019-10-07 14:54:50,903 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 578 [2019-10-07 14:54:51,764 WARN L191 SmtUtils]: Spent 859.00 ms on a formula simplification that was a NOOP. DAG size: 1197 [2019-10-07 14:54:53,375 WARN L191 SmtUtils]: Spent 1.60 s on a formula simplification that was a NOOP. DAG size: 1202 [2019-10-07 14:54:54,246 WARN L191 SmtUtils]: Spent 867.00 ms on a formula simplification that was a NOOP. DAG size: 1202 [2019-10-07 14:54:54,462 WARN L191 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 578 [2019-10-07 14:54:55,341 WARN L191 SmtUtils]: Spent 877.00 ms on a formula simplification that was a NOOP. DAG size: 1202 [2019-10-07 14:54:56,211 WARN L191 SmtUtils]: Spent 865.00 ms on a formula simplification that was a NOOP. DAG size: 1204 [2019-10-07 14:54:57,084 WARN L191 SmtUtils]: Spent 870.00 ms on a formula simplification that was a NOOP. DAG size: 1204 [2019-10-07 14:54:57,290 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 578 [2019-10-07 14:54:58,153 WARN L191 SmtUtils]: Spent 861.00 ms on a formula simplification that was a NOOP. DAG size: 1204 [2019-10-07 14:55:00,656 WARN L191 SmtUtils]: Spent 2.46 s on a formula simplification. DAG size of input: 1195 DAG size of output: 1193 [2019-10-07 14:55:01,526 WARN L191 SmtUtils]: Spent 866.00 ms on a formula simplification that was a NOOP. DAG size: 1193 [2019-10-07 14:55:01,780 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 14:55:02,657 WARN L191 SmtUtils]: Spent 874.00 ms on a formula simplification that was a NOOP. DAG size: 1193 [2019-10-07 14:55:04,236 WARN L191 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 1195 DAG size of output: 1193 [2019-10-07 14:55:05,102 WARN L191 SmtUtils]: Spent 863.00 ms on a formula simplification that was a NOOP. DAG size: 1193 [2019-10-07 14:55:05,312 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 14:55:06,182 WARN L191 SmtUtils]: Spent 868.00 ms on a formula simplification that was a NOOP. DAG size: 1193 [2019-10-07 14:55:07,050 WARN L191 SmtUtils]: Spent 865.00 ms on a formula simplification that was a NOOP. DAG size: 1193 [2019-10-07 14:55:07,921 WARN L191 SmtUtils]: Spent 866.00 ms on a formula simplification that was a NOOP. DAG size: 1193 [2019-10-07 14:55:08,124 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 14:55:08,987 WARN L191 SmtUtils]: Spent 862.00 ms on a formula simplification that was a NOOP. DAG size: 1193 [2019-10-07 14:55:10,604 WARN L191 SmtUtils]: Spent 1.59 s on a formula simplification. DAG size of input: 1195 DAG size of output: 1193 [2019-10-07 14:55:11,474 WARN L191 SmtUtils]: Spent 866.00 ms on a formula simplification that was a NOOP. DAG size: 1193 [2019-10-07 14:55:11,683 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 14:55:12,549 WARN L191 SmtUtils]: Spent 864.00 ms on a formula simplification that was a NOOP. DAG size: 1193 [2019-10-07 14:55:14,133 WARN L191 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 1195 DAG size of output: 1193 [2019-10-07 14:55:14,998 WARN L191 SmtUtils]: Spent 861.00 ms on a formula simplification that was a NOOP. DAG size: 1193 [2019-10-07 14:55:15,221 WARN L191 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 14:55:16,095 WARN L191 SmtUtils]: Spent 872.00 ms on a formula simplification that was a NOOP. DAG size: 1193 [2019-10-07 14:55:16,963 WARN L191 SmtUtils]: Spent 865.00 ms on a formula simplification that was a NOOP. DAG size: 1193 [2019-10-07 14:55:17,834 WARN L191 SmtUtils]: Spent 868.00 ms on a formula simplification that was a NOOP. DAG size: 1193 [2019-10-07 14:55:18,036 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-07 14:55:18,910 WARN L191 SmtUtils]: Spent 871.00 ms on a formula simplification that was a NOOP. DAG size: 1193 [2019-10-07 14:55:19,799 WARN L191 SmtUtils]: Spent 858.00 ms on a formula simplification that was a NOOP. DAG size: 1197 [2019-10-07 14:55:20,668 WARN L191 SmtUtils]: Spent 865.00 ms on a formula simplification that was a NOOP. DAG size: 1197 [2019-10-07 14:55:20,884 WARN L191 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 578 [2019-10-07 14:55:21,744 WARN L191 SmtUtils]: Spent 858.00 ms on a formula simplification that was a NOOP. DAG size: 1197 [2019-10-07 14:55:23,320 WARN L191 SmtUtils]: Spent 1.56 s on a formula simplification. DAG size of input: 1199 DAG size of output: 1197 [2019-10-07 14:55:24,175 WARN L191 SmtUtils]: Spent 851.00 ms on a formula simplification that was a NOOP. DAG size: 1197 [2019-10-07 14:55:24,385 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 578 [2019-10-07 14:55:25,240 WARN L191 SmtUtils]: Spent 853.00 ms on a formula simplification that was a NOOP. DAG size: 1197 [2019-10-07 14:55:26,105 WARN L191 SmtUtils]: Spent 860.00 ms on a formula simplification that was a NOOP. DAG size: 1197 [2019-10-07 14:55:26,961 WARN L191 SmtUtils]: Spent 852.00 ms on a formula simplification that was a NOOP. DAG size: 1197 [2019-10-07 14:55:27,162 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 578 [2019-10-07 14:55:28,017 WARN L191 SmtUtils]: Spent 853.00 ms on a formula simplification that was a NOOP. DAG size: 1197 [2019-10-07 14:55:28,885 WARN L191 SmtUtils]: Spent 860.00 ms on a formula simplification that was a NOOP. DAG size: 1202 [2019-10-07 14:55:29,749 WARN L191 SmtUtils]: Spent 861.00 ms on a formula simplification that was a NOOP. DAG size: 1202 [2019-10-07 14:55:29,976 WARN L191 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 578 [2019-10-07 14:55:30,852 WARN L191 SmtUtils]: Spent 874.00 ms on a formula simplification that was a NOOP. DAG size: 1202 [2019-10-07 14:55:31,713 WARN L191 SmtUtils]: Spent 857.00 ms on a formula simplification that was a NOOP. DAG size: 1204 [2019-10-07 14:55:32,593 WARN L191 SmtUtils]: Spent 876.00 ms on a formula simplification that was a NOOP. DAG size: 1204 [2019-10-07 14:55:32,803 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 578 [2019-10-07 14:55:33,667 WARN L191 SmtUtils]: Spent 862.00 ms on a formula simplification that was a NOOP. DAG size: 1204 [2019-10-07 14:55:33,921 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:55:33,922 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:133) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.lib.sifa.PriorityWorklist.add(PriorityWorklist.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.lambda$2(DagInterpreter.java:135) at java.lang.Iterable.forEach(Iterable.java:75) at java.util.Collections$UnmodifiableCollection.forEach(Collections.java:1080) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:135) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:139) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:287) ... 21 more [2019-10-07 14:55:33,930 INFO L168 Benchmark]: Toolchain (without parser) took 191119.58 ms. Allocated memory was 145.8 MB in the beginning and 690.0 MB in the end (delta: 544.2 MB). Free memory was 101.2 MB in the beginning and 323.4 MB in the end (delta: -222.2 MB). Peak memory consumption was 322.0 MB. Max. memory is 7.1 GB. [2019-10-07 14:55:33,931 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 145.8 MB. Free memory was 122.2 MB in the beginning and 121.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-10-07 14:55:33,931 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1256.70 ms. Allocated memory was 145.8 MB in the beginning and 204.5 MB in the end (delta: 58.7 MB). Free memory was 101.0 MB in the beginning and 136.3 MB in the end (delta: -35.3 MB). Peak memory consumption was 31.5 MB. Max. memory is 7.1 GB. [2019-10-07 14:55:33,932 INFO L168 Benchmark]: Boogie Preprocessor took 187.00 ms. Allocated memory is still 204.5 MB. Free memory was 136.3 MB in the beginning and 127.8 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 7.1 GB. [2019-10-07 14:55:33,933 INFO L168 Benchmark]: RCFGBuilder took 4785.91 ms. Allocated memory was 204.5 MB in the beginning and 291.5 MB in the end (delta: 87.0 MB). Free memory was 127.0 MB in the beginning and 237.5 MB in the end (delta: -110.4 MB). Peak memory consumption was 135.6 MB. Max. memory is 7.1 GB. [2019-10-07 14:55:33,934 INFO L168 Benchmark]: TraceAbstraction took 184884.53 ms. Allocated memory was 291.5 MB in the beginning and 690.0 MB in the end (delta: 398.5 MB). Free memory was 237.5 MB in the beginning and 323.4 MB in the end (delta: -86.0 MB). Peak memory consumption was 312.5 MB. Max. memory is 7.1 GB. [2019-10-07 14:55:33,939 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 145.8 MB. Free memory was 122.2 MB in the beginning and 121.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1256.70 ms. Allocated memory was 145.8 MB in the beginning and 204.5 MB in the end (delta: 58.7 MB). Free memory was 101.0 MB in the beginning and 136.3 MB in the end (delta: -35.3 MB). Peak memory consumption was 31.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 187.00 ms. Allocated memory is still 204.5 MB. Free memory was 136.3 MB in the beginning and 127.8 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4785.91 ms. Allocated memory was 204.5 MB in the beginning and 291.5 MB in the end (delta: 87.0 MB). Free memory was 127.0 MB in the beginning and 237.5 MB in the end (delta: -110.4 MB). Peak memory consumption was 135.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 184884.53 ms. Allocated memory was 291.5 MB in the beginning and 690.0 MB in the end (delta: 398.5 MB). Free memory was 237.5 MB in the beginning and 323.4 MB in the end (delta: -86.0 MB). Peak memory consumption was 312.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...