java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/email_spec4_product24.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 14:57:07,537 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 14:57:07,540 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 14:57:07,556 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 14:57:07,557 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 14:57:07,558 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 14:57:07,559 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 14:57:07,561 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 14:57:07,563 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 14:57:07,564 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 14:57:07,565 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 14:57:07,566 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 14:57:07,566 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 14:57:07,567 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 14:57:07,568 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 14:57:07,569 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 14:57:07,570 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 14:57:07,571 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 14:57:07,573 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 14:57:07,575 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 14:57:07,576 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 14:57:07,578 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 14:57:07,579 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 14:57:07,579 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 14:57:07,582 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 14:57:07,582 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 14:57:07,583 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 14:57:07,583 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 14:57:07,584 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 14:57:07,585 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 14:57:07,585 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 14:57:07,586 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 14:57:07,587 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 14:57:07,588 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 14:57:07,589 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 14:57:07,589 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 14:57:07,590 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 14:57:07,590 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 14:57:07,590 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 14:57:07,591 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 14:57:07,592 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 14:57:07,593 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-07 14:57:07,607 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 14:57:07,608 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 14:57:07,609 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 14:57:07,609 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 14:57:07,609 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 14:57:07,610 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 14:57:07,610 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 14:57:07,610 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 14:57:07,610 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 14:57:07,610 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 14:57:07,611 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 14:57:07,611 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 14:57:07,611 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 14:57:07,611 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 14:57:07,611 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 14:57:07,612 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 14:57:07,612 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 14:57:07,612 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 14:57:07,612 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 14:57:07,612 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 14:57:07,613 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 14:57:07,613 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:57:07,613 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 14:57:07,613 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 14:57:07,613 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 14:57:07,614 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 14:57:07,614 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 14:57:07,614 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 14:57:07,614 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-07 14:57:07,899 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 14:57:07,912 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 14:57:07,916 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 14:57:07,917 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 14:57:07,917 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 14:57:07,918 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec4_product24.cil.c [2019-10-07 14:57:07,982 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f820b301d/302c3b76cb76432ca585370518ea78d2/FLAG919460ef8 [2019-10-07 14:57:08,630 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 14:57:08,631 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec4_product24.cil.c [2019-10-07 14:57:08,653 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f820b301d/302c3b76cb76432ca585370518ea78d2/FLAG919460ef8 [2019-10-07 14:57:08,826 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f820b301d/302c3b76cb76432ca585370518ea78d2 [2019-10-07 14:57:08,837 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 14:57:08,838 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 14:57:08,839 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 14:57:08,839 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 14:57:08,842 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 14:57:08,843 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:57:08" (1/1) ... [2019-10-07 14:57:08,845 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31856daf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:57:08, skipping insertion in model container [2019-10-07 14:57:08,845 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:57:08" (1/1) ... [2019-10-07 14:57:08,851 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 14:57:08,926 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 14:57:09,733 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:57:09,763 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 14:57:09,882 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:57:09,996 INFO L192 MainTranslator]: Completed translation [2019-10-07 14:57:09,997 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:57:09 WrapperNode [2019-10-07 14:57:09,997 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 14:57:09,998 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 14:57:09,998 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 14:57:09,998 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 14:57:10,020 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:57:09" (1/1) ... [2019-10-07 14:57:10,029 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:57:09" (1/1) ... [2019-10-07 14:57:10,102 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:57:09" (1/1) ... [2019-10-07 14:57:10,105 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:57:09" (1/1) ... [2019-10-07 14:57:10,200 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:57:09" (1/1) ... [2019-10-07 14:57:10,240 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:57:09" (1/1) ... [2019-10-07 14:57:10,261 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:57:09" (1/1) ... [2019-10-07 14:57:10,289 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 14:57:10,289 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 14:57:10,290 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 14:57:10,290 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 14:57:10,291 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:57:09" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:57:10,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 14:57:10,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 14:57:10,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 14:57:10,350 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 14:57:10,350 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-07 14:57:10,350 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-07 14:57:10,350 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-07 14:57:10,351 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-07 14:57:10,351 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-07 14:57:10,351 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-07 14:57:10,351 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-07 14:57:10,352 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-07 14:57:10,352 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-07 14:57:10,352 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-07 14:57:10,352 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-07 14:57:10,352 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-07 14:57:10,353 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-07 14:57:10,353 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-07 14:57:10,353 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-07 14:57:10,353 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-07 14:57:10,354 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-07 14:57:10,354 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-07 14:57:10,354 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-07 14:57:10,355 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-07 14:57:10,355 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-07 14:57:10,355 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-07 14:57:10,355 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-07 14:57:10,355 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-07 14:57:10,356 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-07 14:57:10,356 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-07 14:57:10,356 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-07 14:57:10,356 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-07 14:57:10,356 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-07 14:57:10,357 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-07 14:57:10,357 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 14:57:10,357 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 14:57:10,357 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 14:57:10,357 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 14:57:10,357 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 14:57:10,358 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 14:57:10,358 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 14:57:10,358 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 14:57:10,358 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 14:57:10,358 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 14:57:10,359 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 14:57:10,359 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-07 14:57:10,359 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-07 14:57:10,359 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-07 14:57:10,359 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-07 14:57:10,359 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-07 14:57:10,360 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-07 14:57:10,360 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-07 14:57:10,360 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-07 14:57:10,360 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-07 14:57:10,360 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-07 14:57:10,361 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-07 14:57:10,361 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-07 14:57:10,361 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-07 14:57:10,361 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-07 14:57:10,361 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-07 14:57:10,362 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-07 14:57:10,362 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-07 14:57:10,362 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-07 14:57:10,362 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-07 14:57:10,362 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-07 14:57:10,363 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-07 14:57:10,363 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-07 14:57:10,363 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-07 14:57:10,363 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-07 14:57:10,363 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-07 14:57:10,364 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-07 14:57:10,364 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-07 14:57:10,364 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-07 14:57:10,364 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-07 14:57:10,364 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 14:57:10,364 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 14:57:10,365 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-07 14:57:10,365 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-07 14:57:10,365 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-07 14:57:10,365 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-07 14:57:10,365 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-07 14:57:10,366 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-07 14:57:10,366 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-07 14:57:10,366 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-07 14:57:10,366 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-07 14:57:10,366 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-07 14:57:10,367 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-07 14:57:10,367 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignForward_spec__1 [2019-10-07 14:57:10,367 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AutoResponder [2019-10-07 14:57:10,367 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-07 14:57:10,367 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-07 14:57:10,368 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-07 14:57:10,368 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-07 14:57:10,368 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-07 14:57:10,368 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-07 14:57:10,368 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-07 14:57:10,368 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-07 14:57:10,369 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-07 14:57:10,369 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Keys [2019-10-07 14:57:10,369 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-07 14:57:10,369 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-07 14:57:10,369 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-07 14:57:10,369 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-07 14:57:10,370 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-07 14:57:10,370 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-07 14:57:10,370 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-07 14:57:10,370 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-07 14:57:10,370 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-07 14:57:10,370 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-07 14:57:10,371 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-07 14:57:10,371 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-07 14:57:10,371 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-07 14:57:10,371 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-07 14:57:10,371 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-07 14:57:10,371 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 14:57:10,372 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 14:57:10,372 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-07 14:57:10,372 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-07 14:57:10,372 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-07 14:57:10,372 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-07 14:57:10,372 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-07 14:57:10,372 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-07 14:57:10,373 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-07 14:57:10,373 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-07 14:57:10,373 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-07 14:57:10,373 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-07 14:57:10,373 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 14:57:10,373 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-07 14:57:10,374 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-07 14:57:10,374 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-07 14:57:10,374 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-07 14:57:10,374 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-07 14:57:10,374 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-07 14:57:10,374 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-07 14:57:10,375 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-07 14:57:10,375 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-07 14:57:10,375 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-07 14:57:10,375 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-07 14:57:10,375 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-07 14:57:10,375 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-07 14:57:10,376 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-07 14:57:10,376 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-07 14:57:10,376 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-07 14:57:10,376 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-07 14:57:10,376 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-07 14:57:10,376 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-07 14:57:10,376 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-07 14:57:10,377 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-07 14:57:10,377 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-07 14:57:10,377 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-07 14:57:10,377 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-07 14:57:10,377 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-07 14:57:10,377 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-07 14:57:10,378 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-07 14:57:10,378 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-07 14:57:10,378 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-07 14:57:10,378 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 14:57:10,378 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-07 14:57:10,378 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 14:57:10,378 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 14:57:10,379 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 14:57:10,379 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 14:57:10,379 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 14:57:10,379 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 14:57:10,379 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 14:57:10,379 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 14:57:10,379 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 14:57:10,380 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 14:57:10,380 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 14:57:10,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 14:57:10,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 14:57:10,380 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 14:57:10,380 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 14:57:10,380 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 14:57:10,380 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 14:57:10,381 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 14:57:10,381 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 14:57:10,381 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 14:57:10,381 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 14:57:10,381 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 14:57:10,381 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-07 14:57:10,381 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-07 14:57:10,382 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-07 14:57:10,382 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-07 14:57:10,382 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-07 14:57:10,382 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-07 14:57:10,382 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-07 14:57:10,382 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-07 14:57:10,382 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-07 14:57:10,383 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-07 14:57:10,383 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-07 14:57:10,383 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-07 14:57:10,383 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-07 14:57:10,383 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-07 14:57:10,383 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-07 14:57:10,383 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-07 14:57:10,383 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-07 14:57:10,384 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-07 14:57:10,384 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-07 14:57:10,384 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-07 14:57:10,384 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-07 14:57:10,384 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-07 14:57:10,384 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-07 14:57:10,384 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-07 14:57:10,385 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-07 14:57:10,385 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-07 14:57:10,385 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-07 14:57:10,385 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-07 14:57:10,385 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-07 14:57:10,385 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-07 14:57:10,385 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-07 14:57:10,386 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-07 14:57:10,386 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 14:57:10,386 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 14:57:10,386 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-07 14:57:10,386 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-07 14:57:10,386 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-07 14:57:10,386 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-07 14:57:10,387 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-07 14:57:10,387 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignForward_spec__1 [2019-10-07 14:57:10,387 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-07 14:57:10,387 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-07 14:57:10,387 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-07 14:57:10,387 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-07 14:57:10,387 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AutoResponder [2019-10-07 14:57:10,388 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-07 14:57:10,388 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-07 14:57:10,388 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-07 14:57:10,388 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-07 14:57:10,388 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-07 14:57:10,388 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-07 14:57:10,388 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-07 14:57:10,388 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-07 14:57:10,389 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-07 14:57:10,389 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-07 14:57:10,389 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-07 14:57:10,389 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-07 14:57:10,389 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Keys [2019-10-07 14:57:10,389 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-07 14:57:10,389 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-07 14:57:10,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 14:57:10,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 14:57:10,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 14:57:14,661 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 14:57:14,661 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-07 14:57:14,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:57:14 BoogieIcfgContainer [2019-10-07 14:57:14,663 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 14:57:14,665 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 14:57:14,665 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 14:57:14,668 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 14:57:14,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 02:57:08" (1/3) ... [2019-10-07 14:57:14,669 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22f26b50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:57:14, skipping insertion in model container [2019-10-07 14:57:14,670 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:57:09" (2/3) ... [2019-10-07 14:57:14,670 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22f26b50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:57:14, skipping insertion in model container [2019-10-07 14:57:14,670 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:57:14" (3/3) ... [2019-10-07 14:57:14,672 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec4_product24.cil.c [2019-10-07 14:57:14,684 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 14:57:14,699 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 14:57:14,712 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 14:57:14,754 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 14:57:14,754 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 14:57:14,755 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 14:57:14,757 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 14:57:14,757 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 14:57:14,758 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 14:57:14,758 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 14:57:14,758 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 14:57:14,796 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states. [2019-10-07 14:57:14,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2019-10-07 14:57:14,826 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:57:14,827 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] [2019-10-07 14:57:14,830 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:57:14,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:57:14,842 INFO L82 PathProgramCache]: Analyzing trace with hash -325070676, now seen corresponding path program 1 times [2019-10-07 14:57:14,851 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:57:14,852 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:57:14,852 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:57:14,852 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:57:14,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:57:15,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:57:15,560 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 14:57:15,560 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:57:15,561 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:57:15,561 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 14:57:15,568 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 14:57:15,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 14:57:15,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 14:57:15,585 INFO L87 Difference]: Start difference. First operand 383 states. Second operand 2 states. [2019-10-07 14:57:15,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:57:15,646 INFO L93 Difference]: Finished difference Result 567 states and 662 transitions. [2019-10-07 14:57:15,646 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 14:57:15,648 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 118 [2019-10-07 14:57:15,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:57:15,673 INFO L225 Difference]: With dead ends: 567 [2019-10-07 14:57:15,674 INFO L226 Difference]: Without dead ends: 362 [2019-10-07 14:57:15,680 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 14:57:15,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2019-10-07 14:57:15,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 362. [2019-10-07 14:57:15,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 362 states. [2019-10-07 14:57:15,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 423 transitions. [2019-10-07 14:57:15,762 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 423 transitions. Word has length 118 [2019-10-07 14:57:15,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:57:15,764 INFO L462 AbstractCegarLoop]: Abstraction has 362 states and 423 transitions. [2019-10-07 14:57:15,765 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 14:57:15,765 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 423 transitions. [2019-10-07 14:57:15,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2019-10-07 14:57:15,768 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:57:15,769 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] [2019-10-07 14:57:15,769 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:57:15,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:57:15,770 INFO L82 PathProgramCache]: Analyzing trace with hash -25434280, now seen corresponding path program 1 times [2019-10-07 14:57:15,770 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:57:15,770 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:57:15,770 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:57:15,770 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:57:15,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:57:15,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:57:16,038 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 14:57:16,039 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:57:16,039 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:57:16,039 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:57:16,049 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:57:16,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:57:16,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:57:16,050 INFO L87 Difference]: Start difference. First operand 362 states and 423 transitions. Second operand 3 states. [2019-10-07 14:57:16,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:57:16,125 INFO L93 Difference]: Finished difference Result 552 states and 634 transitions. [2019-10-07 14:57:16,128 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:57:16,128 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 119 [2019-10-07 14:57:16,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:57:16,138 INFO L225 Difference]: With dead ends: 552 [2019-10-07 14:57:16,138 INFO L226 Difference]: Without dead ends: 364 [2019-10-07 14:57:16,143 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:57:16,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2019-10-07 14:57:16,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 364. [2019-10-07 14:57:16,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 364 states. [2019-10-07 14:57:16,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 425 transitions. [2019-10-07 14:57:16,201 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 425 transitions. Word has length 119 [2019-10-07 14:57:16,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:57:16,202 INFO L462 AbstractCegarLoop]: Abstraction has 364 states and 425 transitions. [2019-10-07 14:57:16,202 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:57:16,204 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 425 transitions. [2019-10-07 14:57:16,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2019-10-07 14:57:16,209 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:57:16,209 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:57:16,210 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:57:16,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:57:16,210 INFO L82 PathProgramCache]: Analyzing trace with hash 658312226, now seen corresponding path program 1 times [2019-10-07 14:57:16,210 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:57:16,211 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:57:16,211 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:57:16,211 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:57:16,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:57:16,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:57:16,393 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 14:57:16,394 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:57:16,394 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:57:16,394 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:57:16,395 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:57:16,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:57:16,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:57:16,395 INFO L87 Difference]: Start difference. First operand 364 states and 425 transitions. Second operand 3 states. [2019-10-07 14:57:16,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:57:16,429 INFO L93 Difference]: Finished difference Result 712 states and 860 transitions. [2019-10-07 14:57:16,429 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:57:16,429 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 131 [2019-10-07 14:57:16,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:57:16,433 INFO L225 Difference]: With dead ends: 712 [2019-10-07 14:57:16,433 INFO L226 Difference]: Without dead ends: 406 [2019-10-07 14:57:16,435 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:57:16,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2019-10-07 14:57:16,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 405. [2019-10-07 14:57:16,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 405 states. [2019-10-07 14:57:16,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 496 transitions. [2019-10-07 14:57:16,455 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 496 transitions. Word has length 131 [2019-10-07 14:57:16,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:57:16,456 INFO L462 AbstractCegarLoop]: Abstraction has 405 states and 496 transitions. [2019-10-07 14:57:16,456 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:57:16,457 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 496 transitions. [2019-10-07 14:57:16,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2019-10-07 14:57:16,459 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:57:16,460 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:57:16,460 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:57:16,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:57:16,460 INFO L82 PathProgramCache]: Analyzing trace with hash -2006008639, now seen corresponding path program 1 times [2019-10-07 14:57:16,460 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:57:16,461 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:57:16,461 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:57:16,461 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:57:16,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:57:16,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:57:16,977 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 14:57:16,977 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:57:16,977 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:57:16,977 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-10-07 14:57:16,978 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-10-07 14:57:16,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-10-07 14:57:16,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2019-10-07 14:57:16,980 INFO L87 Difference]: Start difference. First operand 405 states and 496 transitions. Second operand 19 states. [2019-10-07 14:57:25,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:57:25,031 INFO L93 Difference]: Finished difference Result 788 states and 927 transitions. [2019-10-07 14:57:25,034 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-10-07 14:57:25,035 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 132 [2019-10-07 14:57:25,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:57:25,042 INFO L225 Difference]: With dead ends: 788 [2019-10-07 14:57:25,042 INFO L226 Difference]: Without dead ends: 596 [2019-10-07 14:57:25,046 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=175, Invalid=1231, Unknown=0, NotChecked=0, Total=1406 [2019-10-07 14:57:25,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2019-10-07 14:57:25,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 589. [2019-10-07 14:57:25,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 589 states. [2019-10-07 14:57:25,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 703 transitions. [2019-10-07 14:57:25,109 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 703 transitions. Word has length 132 [2019-10-07 14:57:25,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:57:25,110 INFO L462 AbstractCegarLoop]: Abstraction has 589 states and 703 transitions. [2019-10-07 14:57:25,110 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-10-07 14:57:25,110 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 703 transitions. [2019-10-07 14:57:25,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2019-10-07 14:57:25,119 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:57:25,120 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:57:25,120 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:57:25,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:57:25,121 INFO L82 PathProgramCache]: Analyzing trace with hash -1907937512, now seen corresponding path program 1 times [2019-10-07 14:57:25,121 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:57:25,121 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:57:25,122 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:57:25,122 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:57:25,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:57:25,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:57:25,745 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 14:57:25,745 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:57:25,746 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:57:25,746 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2019-10-07 14:57:25,747 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2019-10-07 14:57:25,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2019-10-07 14:57:25,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=373, Unknown=0, NotChecked=0, Total=420 [2019-10-07 14:57:25,748 INFO L87 Difference]: Start difference. First operand 589 states and 703 transitions. Second operand 21 states. [2019-10-07 14:57:27,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:57:27,303 INFO L93 Difference]: Finished difference Result 638 states and 754 transitions. [2019-10-07 14:57:27,303 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-10-07 14:57:27,303 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 138 [2019-10-07 14:57:27,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:57:27,312 INFO L225 Difference]: With dead ends: 638 [2019-10-07 14:57:27,312 INFO L226 Difference]: Without dead ends: 616 [2019-10-07 14:57:27,314 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=193, Invalid=1613, Unknown=0, NotChecked=0, Total=1806 [2019-10-07 14:57:27,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2019-10-07 14:57:27,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 611. [2019-10-07 14:57:27,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 611 states. [2019-10-07 14:57:27,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 723 transitions. [2019-10-07 14:57:27,353 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 723 transitions. Word has length 138 [2019-10-07 14:57:27,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:57:27,355 INFO L462 AbstractCegarLoop]: Abstraction has 611 states and 723 transitions. [2019-10-07 14:57:27,355 INFO L463 AbstractCegarLoop]: Interpolant automaton has 21 states. [2019-10-07 14:57:27,355 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 723 transitions. [2019-10-07 14:57:27,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2019-10-07 14:57:27,360 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:57:27,361 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:57:27,361 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:57:27,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:57:27,361 INFO L82 PathProgramCache]: Analyzing trace with hash -588842617, now seen corresponding path program 1 times [2019-10-07 14:57:27,362 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:57:27,362 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:57:27,362 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:57:27,362 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:57:27,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:57:27,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:57:27,594 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-07 14:57:27,595 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:57:27,595 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:57:27,596 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-07 14:57:27,597 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-07 14:57:27,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-07 14:57:27,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:57:27,598 INFO L87 Difference]: Start difference. First operand 611 states and 723 transitions. Second operand 8 states. [2019-10-07 14:57:27,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:57:27,654 INFO L93 Difference]: Finished difference Result 890 states and 1018 transitions. [2019-10-07 14:57:27,654 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-07 14:57:27,654 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 227 [2019-10-07 14:57:27,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:57:27,661 INFO L225 Difference]: With dead ends: 890 [2019-10-07 14:57:27,661 INFO L226 Difference]: Without dead ends: 611 [2019-10-07 14:57:27,662 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:57:27,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2019-10-07 14:57:27,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 611. [2019-10-07 14:57:27,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 611 states. [2019-10-07 14:57:27,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 721 transitions. [2019-10-07 14:57:27,706 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 721 transitions. Word has length 227 [2019-10-07 14:57:27,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:57:27,707 INFO L462 AbstractCegarLoop]: Abstraction has 611 states and 721 transitions. [2019-10-07 14:57:27,708 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-07 14:57:27,708 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 721 transitions. [2019-10-07 14:57:27,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2019-10-07 14:57:27,715 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:57:27,716 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:57:27,717 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:57:27,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:57:27,717 INFO L82 PathProgramCache]: Analyzing trace with hash 1875852175, now seen corresponding path program 1 times [2019-10-07 14:57:27,718 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:57:27,718 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:57:27,718 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:57:27,718 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:57:27,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:57:27,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:57:28,256 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2019-10-07 14:57:28,257 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:57:28,257 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:57:28,257 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-07 14:57:28,259 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-07 14:57:28,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-07 14:57:28,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2019-10-07 14:57:28,261 INFO L87 Difference]: Start difference. First operand 611 states and 721 transitions. Second operand 11 states. [2019-10-07 14:57:31,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:57:31,022 INFO L93 Difference]: Finished difference Result 856 states and 973 transitions. [2019-10-07 14:57:31,023 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-07 14:57:31,023 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 232 [2019-10-07 14:57:31,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:57:31,028 INFO L225 Difference]: With dead ends: 856 [2019-10-07 14:57:31,028 INFO L226 Difference]: Without dead ends: 733 [2019-10-07 14:57:31,029 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2019-10-07 14:57:31,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2019-10-07 14:57:31,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 729. [2019-10-07 14:57:31,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 729 states. [2019-10-07 14:57:31,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 729 states to 729 states and 838 transitions. [2019-10-07 14:57:31,067 INFO L78 Accepts]: Start accepts. Automaton has 729 states and 838 transitions. Word has length 232 [2019-10-07 14:57:31,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:57:31,068 INFO L462 AbstractCegarLoop]: Abstraction has 729 states and 838 transitions. [2019-10-07 14:57:31,068 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-07 14:57:31,068 INFO L276 IsEmpty]: Start isEmpty. Operand 729 states and 838 transitions. [2019-10-07 14:57:31,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2019-10-07 14:57:31,073 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:57:31,074 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:57:31,074 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:57:31,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:57:31,074 INFO L82 PathProgramCache]: Analyzing trace with hash -1453698223, now seen corresponding path program 1 times [2019-10-07 14:57:31,075 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:57:31,075 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:57:31,075 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:57:31,075 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:57:31,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:57:31,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:57:31,985 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2019-10-07 14:57:31,985 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:57:31,986 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:57:31,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:57:32,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:57:32,633 INFO L256 TraceCheckSpWp]: Trace formula consists of 3004 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:57:32,655 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:57:32,808 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2019-10-07 14:57:32,808 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:57:33,364 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2019-10-07 14:57:33,365 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 14:57:33,404 INFO L162 IcfgInterpreter]: Started Sifa with 201 locations of interest [2019-10-07 14:57:33,404 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 14:57:33,411 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 14:57:33,417 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 14:57:33,418 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 14:58:10,248 WARN L191 SmtUtils]: Spent 394.00 ms on a formula simplification that was a NOOP. DAG size: 664 [2019-10-07 14:58:13,865 WARN L191 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 281 DAG size of output: 229 [2019-10-07 14:58:14,178 WARN L191 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 697 [2019-10-07 14:58:14,478 WARN L191 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 697 [2019-10-07 14:58:14,713 WARN L191 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 697 [2019-10-07 14:58:14,867 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:58:15,491 WARN L191 SmtUtils]: Spent 622.00 ms on a formula simplification that was a NOOP. DAG size: 989 [2019-10-07 14:58:16,093 WARN L191 SmtUtils]: Spent 584.00 ms on a formula simplification that was a NOOP. DAG size: 989 [2019-10-07 14:58:16,709 WARN L191 SmtUtils]: Spent 613.00 ms on a formula simplification that was a NOOP. DAG size: 989 [2019-10-07 14:58:16,859 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:58:17,504 WARN L191 SmtUtils]: Spent 643.00 ms on a formula simplification that was a NOOP. DAG size: 989 [2019-10-07 14:58:18,738 WARN L191 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 991 DAG size of output: 989 [2019-10-07 14:58:19,365 WARN L191 SmtUtils]: Spent 623.00 ms on a formula simplification that was a NOOP. DAG size: 989 [2019-10-07 14:58:19,511 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:58:20,127 WARN L191 SmtUtils]: Spent 614.00 ms on a formula simplification that was a NOOP. DAG size: 989 [2019-10-07 14:58:20,718 WARN L191 SmtUtils]: Spent 588.00 ms on a formula simplification that was a NOOP. DAG size: 989 [2019-10-07 14:58:21,328 WARN L191 SmtUtils]: Spent 606.00 ms on a formula simplification that was a NOOP. DAG size: 989 [2019-10-07 14:58:21,451 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:58:22,016 WARN L191 SmtUtils]: Spent 563.00 ms on a formula simplification that was a NOOP. DAG size: 989 [2019-10-07 14:58:22,040 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 547 for LOIs [2019-10-07 14:58:22,324 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 632 [2019-10-07 14:58:22,575 WARN L191 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:58:23,006 WARN L191 SmtUtils]: Spent 429.00 ms on a formula simplification that was a NOOP. DAG size: 924 [2019-10-07 14:58:23,008 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1031 for LOIs [2019-10-07 14:58:23,567 WARN L191 SmtUtils]: Spent 557.00 ms on a formula simplification that was a NOOP. DAG size: 1031 [2019-10-07 14:58:24,177 WARN L191 SmtUtils]: Spent 607.00 ms on a formula simplification that was a NOOP. DAG size: 1031 [2019-10-07 14:58:24,376 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-07 14:58:25,221 WARN L191 SmtUtils]: Spent 843.00 ms on a formula simplification that was a NOOP. DAG size: 1161 [2019-10-07 14:58:25,788 WARN L191 SmtUtils]: Spent 555.00 ms on a formula simplification that was a NOOP. DAG size: 1031 [2019-10-07 14:58:26,350 WARN L191 SmtUtils]: Spent 558.00 ms on a formula simplification that was a NOOP. DAG size: 1031 [2019-10-07 14:58:26,726 WARN L191 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-07 14:58:27,531 WARN L191 SmtUtils]: Spent 803.00 ms on a formula simplification that was a NOOP. DAG size: 1161 [2019-10-07 14:58:28,152 WARN L191 SmtUtils]: Spent 592.00 ms on a formula simplification that was a NOOP. DAG size: 1031 [2019-10-07 14:58:28,709 WARN L191 SmtUtils]: Spent 553.00 ms on a formula simplification that was a NOOP. DAG size: 1031 [2019-10-07 14:58:28,912 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-07 14:58:29,782 WARN L191 SmtUtils]: Spent 868.00 ms on a formula simplification that was a NOOP. DAG size: 1161 [2019-10-07 14:58:30,947 WARN L191 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 1163 DAG size of output: 1031 [2019-10-07 14:58:31,511 WARN L191 SmtUtils]: Spent 561.00 ms on a formula simplification that was a NOOP. DAG size: 1031 [2019-10-07 14:58:31,894 WARN L191 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 572 DAG size of output: 570 [2019-10-07 14:58:32,737 WARN L191 SmtUtils]: Spent 841.00 ms on a formula simplification that was a NOOP. DAG size: 1161 [2019-10-07 14:58:33,342 WARN L191 SmtUtils]: Spent 590.00 ms on a formula simplification that was a NOOP. DAG size: 1031 [2019-10-07 14:58:33,918 WARN L191 SmtUtils]: Spent 572.00 ms on a formula simplification that was a NOOP. DAG size: 1031 [2019-10-07 14:58:34,116 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-07 14:58:34,958 WARN L191 SmtUtils]: Spent 841.00 ms on a formula simplification that was a NOOP. DAG size: 1161 [2019-10-07 14:58:35,530 WARN L191 SmtUtils]: Spent 569.00 ms on a formula simplification that was a NOOP. DAG size: 1031 [2019-10-07 14:58:36,093 WARN L191 SmtUtils]: Spent 559.00 ms on a formula simplification that was a NOOP. DAG size: 1031 [2019-10-07 14:58:36,298 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-07 14:58:37,122 WARN L191 SmtUtils]: Spent 822.00 ms on a formula simplification that was a NOOP. DAG size: 1161 [2019-10-07 14:58:37,681 WARN L191 SmtUtils]: Spent 556.00 ms on a formula simplification that was a NOOP. DAG size: 1031 [2019-10-07 14:58:38,241 WARN L191 SmtUtils]: Spent 557.00 ms on a formula simplification that was a NOOP. DAG size: 1031 [2019-10-07 14:58:38,446 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-07 14:58:39,258 WARN L191 SmtUtils]: Spent 810.00 ms on a formula simplification that was a NOOP. DAG size: 1161 [2019-10-07 14:58:39,819 WARN L191 SmtUtils]: Spent 557.00 ms on a formula simplification that was a NOOP. DAG size: 1031 [2019-10-07 14:58:40,397 WARN L191 SmtUtils]: Spent 575.00 ms on a formula simplification that was a NOOP. DAG size: 1031 [2019-10-07 14:58:40,666 WARN L191 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-07 14:58:41,483 WARN L191 SmtUtils]: Spent 815.00 ms on a formula simplification that was a NOOP. DAG size: 1161 [2019-10-07 14:58:42,049 WARN L191 SmtUtils]: Spent 563.00 ms on a formula simplification that was a NOOP. DAG size: 1031 [2019-10-07 14:58:42,617 WARN L191 SmtUtils]: Spent 564.00 ms on a formula simplification that was a NOOP. DAG size: 1031 [2019-10-07 14:58:42,817 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-07 14:58:43,639 WARN L191 SmtUtils]: Spent 819.00 ms on a formula simplification that was a NOOP. DAG size: 1161 [2019-10-07 14:58:44,219 WARN L191 SmtUtils]: Spent 577.00 ms on a formula simplification that was a NOOP. DAG size: 1031 [2019-10-07 14:58:44,792 WARN L191 SmtUtils]: Spent 570.00 ms on a formula simplification that was a NOOP. DAG size: 1031 [2019-10-07 14:58:44,996 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-07 14:58:45,837 WARN L191 SmtUtils]: Spent 839.00 ms on a formula simplification that was a NOOP. DAG size: 1161 [2019-10-07 14:58:46,396 WARN L191 SmtUtils]: Spent 557.00 ms on a formula simplification that was a NOOP. DAG size: 1031 [2019-10-07 14:58:46,965 WARN L191 SmtUtils]: Spent 565.00 ms on a formula simplification that was a NOOP. DAG size: 1031 [2019-10-07 14:58:47,162 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-07 14:58:47,996 WARN L191 SmtUtils]: Spent 832.00 ms on a formula simplification that was a NOOP. DAG size: 1161 [2019-10-07 14:58:48,564 WARN L191 SmtUtils]: Spent 565.00 ms on a formula simplification that was a NOOP. DAG size: 1031 [2019-10-07 14:58:49,137 WARN L191 SmtUtils]: Spent 571.00 ms on a formula simplification that was a NOOP. DAG size: 1031 [2019-10-07 14:58:49,333 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-07 14:58:50,179 WARN L191 SmtUtils]: Spent 843.00 ms on a formula simplification that was a NOOP. DAG size: 1161 [2019-10-07 14:58:50,745 WARN L191 SmtUtils]: Spent 563.00 ms on a formula simplification that was a NOOP. DAG size: 1031 [2019-10-07 14:58:51,319 WARN L191 SmtUtils]: Spent 570.00 ms on a formula simplification that was a NOOP. DAG size: 1031 [2019-10-07 14:58:51,514 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-07 14:58:52,343 WARN L191 SmtUtils]: Spent 827.00 ms on a formula simplification that was a NOOP. DAG size: 1161 [2019-10-07 14:58:53,226 WARN L191 SmtUtils]: Spent 835.00 ms on a formula simplification that was a NOOP. DAG size: 1161 [2019-10-07 14:58:54,048 WARN L191 SmtUtils]: Spent 819.00 ms on a formula simplification that was a NOOP. DAG size: 1161 [2019-10-07 14:58:54,260 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-07 14:58:55,091 WARN L191 SmtUtils]: Spent 829.00 ms on a formula simplification that was a NOOP. DAG size: 1161 [2019-10-07 14:58:56,617 WARN L191 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 1163 DAG size of output: 1161 [2019-10-07 14:58:57,444 WARN L191 SmtUtils]: Spent 823.00 ms on a formula simplification that was a NOOP. DAG size: 1161 [2019-10-07 14:58:57,661 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-07 14:58:58,483 WARN L191 SmtUtils]: Spent 819.00 ms on a formula simplification that was a NOOP. DAG size: 1161 [2019-10-07 14:58:59,318 WARN L191 SmtUtils]: Spent 832.00 ms on a formula simplification that was a NOOP. DAG size: 1161 [2019-10-07 14:59:00,141 WARN L191 SmtUtils]: Spent 820.00 ms on a formula simplification that was a NOOP. DAG size: 1161 [2019-10-07 14:59:00,346 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-07 14:59:01,176 WARN L191 SmtUtils]: Spent 827.00 ms on a formula simplification that was a NOOP. DAG size: 1161 [2019-10-07 14:59:02,032 WARN L191 SmtUtils]: Spent 823.00 ms on a formula simplification that was a NOOP. DAG size: 1163 [2019-10-07 14:59:02,864 WARN L191 SmtUtils]: Spent 828.00 ms on a formula simplification that was a NOOP. DAG size: 1163 [2019-10-07 14:59:03,068 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-07 14:59:03,898 WARN L191 SmtUtils]: Spent 828.00 ms on a formula simplification that was a NOOP. DAG size: 1165 [2019-10-07 14:59:05,310 WARN L191 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 1167 DAG size of output: 1163 [2019-10-07 14:59:06,140 WARN L191 SmtUtils]: Spent 827.00 ms on a formula simplification that was a NOOP. DAG size: 1163 [2019-10-07 14:59:06,347 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-07 14:59:07,181 WARN L191 SmtUtils]: Spent 832.00 ms on a formula simplification that was a NOOP. DAG size: 1165 [2019-10-07 14:59:08,646 WARN L191 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 1165 DAG size of output: 1163 [2019-10-07 14:59:09,459 WARN L191 SmtUtils]: Spent 810.00 ms on a formula simplification that was a NOOP. DAG size: 1163 [2019-10-07 14:59:09,657 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-07 14:59:10,485 WARN L191 SmtUtils]: Spent 826.00 ms on a formula simplification that was a NOOP. DAG size: 1165 [2019-10-07 14:59:11,327 WARN L191 SmtUtils]: Spent 833.00 ms on a formula simplification that was a NOOP. DAG size: 1170 [2019-10-07 14:59:12,154 WARN L191 SmtUtils]: Spent 823.00 ms on a formula simplification that was a NOOP. DAG size: 1170 [2019-10-07 14:59:12,352 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-07 14:59:13,180 WARN L191 SmtUtils]: Spent 826.00 ms on a formula simplification that was a NOOP. DAG size: 1170 [2019-10-07 14:59:14,009 WARN L191 SmtUtils]: Spent 826.00 ms on a formula simplification that was a NOOP. DAG size: 1172 [2019-10-07 14:59:14,838 WARN L191 SmtUtils]: Spent 826.00 ms on a formula simplification that was a NOOP. DAG size: 1172 [2019-10-07 14:59:15,038 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-07 14:59:15,869 WARN L191 SmtUtils]: Spent 829.00 ms on a formula simplification that was a NOOP. DAG size: 1172 [2019-10-07 14:59:17,590 WARN L191 SmtUtils]: Spent 1.68 s on a formula simplification. DAG size of input: 1163 DAG size of output: 1161 [2019-10-07 14:59:18,416 WARN L191 SmtUtils]: Spent 822.00 ms on a formula simplification that was a NOOP. DAG size: 1161 [2019-10-07 14:59:18,619 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-07 14:59:19,434 WARN L191 SmtUtils]: Spent 813.00 ms on a formula simplification that was a NOOP. DAG size: 1161 [2019-10-07 14:59:20,933 WARN L191 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 1163 DAG size of output: 1161 [2019-10-07 14:59:21,745 WARN L191 SmtUtils]: Spent 809.00 ms on a formula simplification that was a NOOP. DAG size: 1161 [2019-10-07 14:59:21,954 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-07 14:59:22,781 WARN L191 SmtUtils]: Spent 825.00 ms on a formula simplification that was a NOOP. DAG size: 1161 [2019-10-07 14:59:23,588 WARN L191 SmtUtils]: Spent 804.00 ms on a formula simplification that was a NOOP. DAG size: 1161 [2019-10-07 14:59:24,400 WARN L191 SmtUtils]: Spent 809.00 ms on a formula simplification that was a NOOP. DAG size: 1161 [2019-10-07 14:59:24,596 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-07 14:59:25,414 WARN L191 SmtUtils]: Spent 816.00 ms on a formula simplification that was a NOOP. DAG size: 1161 [2019-10-07 14:59:27,134 WARN L191 SmtUtils]: Spent 1.68 s on a formula simplification. DAG size of input: 1163 DAG size of output: 1161 [2019-10-07 14:59:27,960 WARN L191 SmtUtils]: Spent 822.00 ms on a formula simplification that was a NOOP. DAG size: 1161 [2019-10-07 14:59:28,162 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-07 14:59:28,979 WARN L191 SmtUtils]: Spent 814.00 ms on a formula simplification that was a NOOP. DAG size: 1161 [2019-10-07 14:59:30,454 WARN L191 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 1163 DAG size of output: 1161 [2019-10-07 14:59:31,278 WARN L191 SmtUtils]: Spent 820.00 ms on a formula simplification that was a NOOP. DAG size: 1161 [2019-10-07 14:59:31,485 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-07 14:59:32,303 WARN L191 SmtUtils]: Spent 815.00 ms on a formula simplification that was a NOOP. DAG size: 1161 [2019-10-07 14:59:33,115 WARN L191 SmtUtils]: Spent 809.00 ms on a formula simplification that was a NOOP. DAG size: 1161 [2019-10-07 14:59:33,938 WARN L191 SmtUtils]: Spent 819.00 ms on a formula simplification that was a NOOP. DAG size: 1161 [2019-10-07 14:59:34,131 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-07 14:59:34,950 WARN L191 SmtUtils]: Spent 816.00 ms on a formula simplification that was a NOOP. DAG size: 1161 [2019-10-07 14:59:36,783 WARN L191 SmtUtils]: Spent 1.80 s on a formula simplification. DAG size of input: 1167 DAG size of output: 1165 [2019-10-07 14:59:37,612 WARN L191 SmtUtils]: Spent 826.00 ms on a formula simplification that was a NOOP. DAG size: 1165 [2019-10-07 14:59:37,817 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-07 14:59:38,648 WARN L191 SmtUtils]: Spent 829.00 ms on a formula simplification that was a NOOP. DAG size: 1165 [2019-10-07 14:59:39,488 WARN L191 SmtUtils]: Spent 825.00 ms on a formula simplification that was a NOOP. DAG size: 1165 [2019-10-07 14:59:40,316 WARN L191 SmtUtils]: Spent 825.00 ms on a formula simplification that was a NOOP. DAG size: 1165 [2019-10-07 14:59:40,526 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-07 14:59:41,354 WARN L191 SmtUtils]: Spent 827.00 ms on a formula simplification that was a NOOP. DAG size: 1165 [2019-10-07 14:59:42,178 WARN L191 SmtUtils]: Spent 820.00 ms on a formula simplification that was a NOOP. DAG size: 1165 [2019-10-07 14:59:42,997 WARN L191 SmtUtils]: Spent 816.00 ms on a formula simplification that was a NOOP. DAG size: 1165 [2019-10-07 14:59:43,193 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-07 14:59:44,007 WARN L191 SmtUtils]: Spent 813.00 ms on a formula simplification that was a NOOP. DAG size: 1165 [2019-10-07 14:59:45,391 WARN L191 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 1172 DAG size of output: 1163 [2019-10-07 14:59:46,208 WARN L191 SmtUtils]: Spent 813.00 ms on a formula simplification that was a NOOP. DAG size: 1163 [2019-10-07 14:59:46,424 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-07 14:59:47,249 WARN L191 SmtUtils]: Spent 823.00 ms on a formula simplification that was a NOOP. DAG size: 1165 [2019-10-07 14:59:48,638 WARN L191 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 1174 DAG size of output: 1165 [2019-10-07 14:59:49,455 WARN L191 SmtUtils]: Spent 814.00 ms on a formula simplification that was a NOOP. DAG size: 1165 [2019-10-07 14:59:49,701 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-07 14:59:50,518 WARN L191 SmtUtils]: Spent 815.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 14:59:50,771 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:59:50,772 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 14:59:50,778 INFO L168 Benchmark]: Toolchain (without parser) took 161940.46 ms. Allocated memory was 144.7 MB in the beginning and 710.9 MB in the end (delta: 566.2 MB). Free memory was 99.7 MB in the beginning and 598.0 MB in the end (delta: -498.3 MB). Peak memory consumption was 67.9 MB. Max. memory is 7.1 GB. [2019-10-07 14:59:50,779 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 144.7 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-10-07 14:59:50,780 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1158.13 ms. Allocated memory was 144.7 MB in the beginning and 202.9 MB in the end (delta: 58.2 MB). Free memory was 99.2 MB in the beginning and 138.0 MB in the end (delta: -38.7 MB). Peak memory consumption was 29.5 MB. Max. memory is 7.1 GB. [2019-10-07 14:59:50,780 INFO L168 Benchmark]: Boogie Preprocessor took 291.43 ms. Allocated memory is still 202.9 MB. Free memory was 138.0 MB in the beginning and 128.9 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. [2019-10-07 14:59:50,781 INFO L168 Benchmark]: RCFGBuilder took 4373.83 ms. Allocated memory was 202.9 MB in the beginning and 296.7 MB in the end (delta: 93.8 MB). Free memory was 128.9 MB in the beginning and 98.3 MB in the end (delta: 30.6 MB). Peak memory consumption was 124.4 MB. Max. memory is 7.1 GB. [2019-10-07 14:59:50,782 INFO L168 Benchmark]: TraceAbstraction took 156112.33 ms. Allocated memory was 296.7 MB in the beginning and 710.9 MB in the end (delta: 414.2 MB). Free memory was 98.3 MB in the beginning and 598.0 MB in the end (delta: -499.7 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-10-07 14:59:50,785 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 144.7 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1158.13 ms. Allocated memory was 144.7 MB in the beginning and 202.9 MB in the end (delta: 58.2 MB). Free memory was 99.2 MB in the beginning and 138.0 MB in the end (delta: -38.7 MB). Peak memory consumption was 29.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 291.43 ms. Allocated memory is still 202.9 MB. Free memory was 138.0 MB in the beginning and 128.9 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4373.83 ms. Allocated memory was 202.9 MB in the beginning and 296.7 MB in the end (delta: 93.8 MB). Free memory was 128.9 MB in the beginning and 98.3 MB in the end (delta: 30.6 MB). Peak memory consumption was 124.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 156112.33 ms. Allocated memory was 296.7 MB in the beginning and 710.9 MB in the end (delta: 414.2 MB). Free memory was 98.3 MB in the beginning and 598.0 MB in the end (delta: -499.7 MB). There was no memory consumed. 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...