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_spec27_product33.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 14:50:04,570 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 14:50:04,572 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 14:50:04,591 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 14:50:04,591 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 14:50:04,592 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 14:50:04,594 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 14:50:04,595 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 14:50:04,597 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 14:50:04,598 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 14:50:04,599 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 14:50:04,600 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 14:50:04,600 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 14:50:04,601 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 14:50:04,602 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 14:50:04,603 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 14:50:04,604 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 14:50:04,605 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 14:50:04,607 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 14:50:04,609 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 14:50:04,610 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 14:50:04,611 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 14:50:04,612 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 14:50:04,613 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 14:50:04,615 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 14:50:04,616 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 14:50:04,616 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 14:50:04,617 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 14:50:04,617 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 14:50:04,618 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 14:50:04,619 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 14:50:04,619 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 14:50:04,620 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 14:50:04,621 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 14:50:04,622 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 14:50:04,622 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 14:50:04,623 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 14:50:04,623 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 14:50:04,623 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 14:50:04,624 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 14:50:04,625 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 14:50:04,626 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 14:50:04,640 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 14:50:04,640 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 14:50:04,642 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 14:50:04,642 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 14:50:04,642 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 14:50:04,642 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 14:50:04,643 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 14:50:04,643 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 14:50:04,643 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 14:50:04,643 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 14:50:04,643 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 14:50:04,644 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 14:50:04,644 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 14:50:04,644 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 14:50:04,644 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 14:50:04,644 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 14:50:04,644 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 14:50:04,645 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 14:50:04,645 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 14:50:04,645 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 14:50:04,645 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 14:50:04,645 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:50:04,646 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 14:50:04,646 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 14:50:04,646 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 14:50:04,646 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 14:50:04,646 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 14:50:04,647 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 14:50:04,647 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 14:50:04,921 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 14:50:04,937 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 14:50:04,941 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 14:50:04,943 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 14:50:04,943 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 14:50:04,944 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec27_product33.cil.c [2019-10-07 14:50:05,013 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a490bf65/693739a116de4d539f02e2cadcc8be98/FLAG5444ac689 [2019-10-07 14:50:05,649 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 14:50:05,650 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec27_product33.cil.c [2019-10-07 14:50:05,685 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a490bf65/693739a116de4d539f02e2cadcc8be98/FLAG5444ac689 [2019-10-07 14:50:05,881 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a490bf65/693739a116de4d539f02e2cadcc8be98 [2019-10-07 14:50:05,892 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 14:50:05,893 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 14:50:05,895 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 14:50:05,895 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 14:50:05,898 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 14:50:05,899 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:50:05" (1/1) ... [2019-10-07 14:50:05,902 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e4ad246 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:50:05, skipping insertion in model container [2019-10-07 14:50:05,902 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:50:05" (1/1) ... [2019-10-07 14:50:05,909 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 14:50:05,991 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 14:50:06,694 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:50:06,716 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 14:50:06,873 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:50:06,996 INFO L192 MainTranslator]: Completed translation [2019-10-07 14:50:06,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:50:06 WrapperNode [2019-10-07 14:50:06,997 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 14:50:06,998 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 14:50:06,998 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 14:50:06,998 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 14:50:07,013 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:50:06" (1/1) ... [2019-10-07 14:50:07,014 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:50:06" (1/1) ... [2019-10-07 14:50:07,081 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:50:06" (1/1) ... [2019-10-07 14:50:07,084 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:50:06" (1/1) ... [2019-10-07 14:50:07,155 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:50:06" (1/1) ... [2019-10-07 14:50:07,188 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:50:06" (1/1) ... [2019-10-07 14:50:07,203 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:50:06" (1/1) ... [2019-10-07 14:50:07,222 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 14:50:07,223 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 14:50:07,223 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 14:50:07,223 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 14:50:07,224 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:50:06" (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 14:50:07,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 14:50:07,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 14:50:07,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 14:50:07,301 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 14:50:07,301 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-07 14:50:07,301 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 14:50:07,301 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 14:50:07,301 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 14:50:07,302 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 14:50:07,302 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 14:50:07,302 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 14:50:07,302 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-07 14:50:07,302 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-07 14:50:07,303 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-07 14:50:07,303 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-07 14:50:07,303 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-07 14:50:07,303 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-07 14:50:07,303 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-07 14:50:07,304 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-07 14:50:07,304 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 14:50:07,304 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 14:50:07,304 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-07 14:50:07,305 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-07 14:50:07,306 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-07 14:50:07,306 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-07 14:50:07,306 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-07 14:50:07,306 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-07 14:50:07,306 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-07 14:50:07,306 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-07 14:50:07,307 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-07 14:50:07,307 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-07 14:50:07,307 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-07 14:50:07,307 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-07 14:50:07,307 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AutoResponder [2019-10-07 14:50:07,307 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-07 14:50:07,308 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-07 14:50:07,308 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-07 14:50:07,308 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-07 14:50:07,308 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-07 14:50:07,308 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-07 14:50:07,308 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 14:50:07,308 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__VerifyForward_spec__1 [2019-10-07 14:50:07,309 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 14:50:07,309 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 14:50:07,309 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 14:50:07,309 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 14:50:07,309 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-07 14:50:07,309 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-07 14:50:07,310 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-07 14:50:07,310 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-07 14:50:07,310 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-07 14:50:07,310 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-07 14:50:07,310 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-07 14:50:07,310 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-07 14:50:07,311 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-07 14:50:07,311 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-07 14:50:07,311 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-07 14:50:07,311 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-07 14:50:07,311 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-07 14:50:07,311 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-07 14:50:07,312 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-07 14:50:07,312 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-07 14:50:07,312 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-07 14:50:07,312 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-07 14:50:07,312 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-07 14:50:07,312 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-07 14:50:07,313 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-07 14:50:07,313 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-07 14:50:07,313 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-07 14:50:07,313 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-07 14:50:07,313 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-07 14:50:07,313 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-07 14:50:07,314 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-07 14:50:07,314 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-07 14:50:07,314 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-07 14:50:07,314 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-07 14:50:07,314 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-07 14:50:07,315 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-07 14:50:07,315 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-07 14:50:07,315 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-07 14:50:07,315 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-07 14:50:07,315 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-07 14:50:07,315 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-07 14:50:07,316 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-07 14:50:07,316 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-07 14:50:07,316 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-07 14:50:07,316 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-07 14:50:07,316 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-07 14:50:07,316 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-07 14:50:07,317 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-07 14:50:07,317 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-07 14:50:07,317 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-07 14:50:07,317 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-07 14:50:07,317 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-07 14:50:07,317 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-07 14:50:07,318 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-07 14:50:07,318 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-07 14:50:07,318 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-07 14:50:07,318 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-07 14:50:07,318 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-07 14:50:07,318 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-07 14:50:07,318 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-07 14:50:07,319 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-07 14:50:07,319 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-07 14:50:07,319 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-07 14:50:07,319 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-07 14:50:07,319 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-07 14:50:07,319 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-07 14:50:07,320 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-07 14:50:07,320 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-07 14:50:07,320 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-07 14:50:07,320 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-07 14:50:07,320 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-07 14:50:07,320 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-07 14:50:07,320 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-07 14:50:07,321 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-07 14:50:07,321 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-07 14:50:07,321 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-07 14:50:07,321 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 14:50:07,321 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 14:50:07,321 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 14:50:07,321 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 14:50:07,322 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-07 14:50:07,322 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 14:50:07,322 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 14:50:07,322 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 14:50:07,322 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 14:50:07,322 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 14:50:07,323 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 14:50:07,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 14:50:07,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 14:50:07,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 14:50:07,323 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 14:50:07,324 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 14:50:07,324 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 14:50:07,324 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 14:50:07,324 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 14:50:07,324 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 14:50:07,325 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 14:50:07,325 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 14:50:07,325 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-07 14:50:07,325 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-07 14:50:07,325 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-07 14:50:07,326 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-07 14:50:07,326 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-07 14:50:07,326 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-07 14:50:07,326 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-07 14:50:07,326 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-07 14:50:07,327 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-07 14:50:07,327 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-07 14:50:07,327 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 14:50:07,327 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 14:50:07,327 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 14:50:07,327 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-07 14:50:07,328 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-07 14:50:07,328 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-07 14:50:07,328 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-07 14:50:07,328 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-07 14:50:07,328 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-07 14:50:07,328 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-07 14:50:07,329 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-07 14:50:07,329 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-07 14:50:07,329 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-07 14:50:07,329 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-07 14:50:07,329 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 14:50:07,329 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 14:50:07,330 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 14:50:07,330 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-07 14:50:07,330 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-07 14:50:07,330 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-07 14:50:07,330 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-07 14:50:07,330 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-07 14:50:07,331 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-07 14:50:07,331 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-07 14:50:07,331 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-07 14:50:07,331 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-07 14:50:07,331 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-07 14:50:07,331 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-07 14:50:07,332 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-07 14:50:07,332 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-07 14:50:07,332 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-07 14:50:07,332 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-07 14:50:07,332 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-07 14:50:07,333 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-07 14:50:07,333 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-07 14:50:07,333 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-07 14:50:07,333 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-07 14:50:07,333 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-07 14:50:07,333 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-07 14:50:07,334 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-07 14:50:07,334 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-07 14:50:07,334 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-07 14:50:07,334 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-07 14:50:07,334 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-07 14:50:07,334 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-07 14:50:07,335 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-07 14:50:07,335 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AutoResponder [2019-10-07 14:50:07,335 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-07 14:50:07,335 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-07 14:50:07,335 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-07 14:50:07,336 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__VerifyForward_spec__1 [2019-10-07 14:50:07,336 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 14:50:07,336 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-07 14:50:07,336 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-07 14:50:07,336 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-07 14:50:07,336 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-07 14:50:07,337 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-07 14:50:07,337 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-07 14:50:07,337 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-07 14:50:07,337 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-07 14:50:07,337 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-07 14:50:07,338 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-07 14:50:07,338 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-07 14:50:07,338 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-07 14:50:07,338 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-07 14:50:07,338 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-07 14:50:07,338 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-07 14:50:07,339 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-07 14:50:07,339 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-07 14:50:07,339 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-07 14:50:07,339 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-07 14:50:07,339 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-07 14:50:07,340 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-07 14:50:07,340 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-07 14:50:07,340 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-07 14:50:07,340 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-07 14:50:07,340 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-07 14:50:07,340 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-07 14:50:07,341 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-07 14:50:07,341 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-07 14:50:07,341 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-07 14:50:07,341 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-07 14:50:07,341 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-07 14:50:07,341 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-07 14:50:07,341 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-07 14:50:07,342 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-07 14:50:07,342 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-07 14:50:07,342 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-07 14:50:07,342 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-07 14:50:07,342 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-07 14:50:07,342 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-07 14:50:07,343 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-07 14:50:07,343 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-07 14:50:07,343 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-07 14:50:07,343 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-07 14:50:07,343 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-07 14:50:07,343 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-07 14:50:07,344 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-07 14:50:07,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 14:50:07,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 14:50:07,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 14:50:11,898 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 14:50:11,899 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-07 14:50:11,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:50:11 BoogieIcfgContainer [2019-10-07 14:50:11,902 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 14:50:11,902 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 14:50:11,903 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 14:50:11,906 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 14:50:11,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 02:50:05" (1/3) ... [2019-10-07 14:50:11,907 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20dd3fc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:50:11, skipping insertion in model container [2019-10-07 14:50:11,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:50:06" (2/3) ... [2019-10-07 14:50:11,907 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20dd3fc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:50:11, skipping insertion in model container [2019-10-07 14:50:11,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:50:11" (3/3) ... [2019-10-07 14:50:11,909 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec27_product33.cil.c [2019-10-07 14:50:11,918 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 14:50:11,927 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 14:50:11,938 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 14:50:11,967 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 14:50:11,967 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 14:50:11,968 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 14:50:11,968 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 14:50:11,968 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 14:50:11,968 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 14:50:11,968 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 14:50:11,968 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 14:50:12,002 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states. [2019-10-07 14:50:12,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2019-10-07 14:50:12,023 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:50:12,025 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:50:12,027 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:50:12,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:50:12,033 INFO L82 PathProgramCache]: Analyzing trace with hash -1653884291, now seen corresponding path program 1 times [2019-10-07 14:50:12,043 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:50:12,043 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:12,043 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:12,044 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:12,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:50:12,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:50:12,755 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 14:50:12,755 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:12,756 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:50:12,756 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 14:50:12,762 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 14:50:12,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 14:50:12,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 14:50:12,780 INFO L87 Difference]: Start difference. First operand 436 states. Second operand 2 states. [2019-10-07 14:50:12,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:50:12,897 INFO L93 Difference]: Finished difference Result 673 states and 805 transitions. [2019-10-07 14:50:12,898 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 14:50:12,899 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 169 [2019-10-07 14:50:12,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:50:12,937 INFO L225 Difference]: With dead ends: 673 [2019-10-07 14:50:12,937 INFO L226 Difference]: Without dead ends: 415 [2019-10-07 14:50:12,950 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 14:50:12,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2019-10-07 14:50:13,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 415. [2019-10-07 14:50:13,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 415 states. [2019-10-07 14:50:13,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 491 transitions. [2019-10-07 14:50:13,048 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 491 transitions. Word has length 169 [2019-10-07 14:50:13,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:50:13,051 INFO L462 AbstractCegarLoop]: Abstraction has 415 states and 491 transitions. [2019-10-07 14:50:13,051 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 14:50:13,051 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 491 transitions. [2019-10-07 14:50:13,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2019-10-07 14:50:13,058 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:50:13,058 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:50:13,059 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:50:13,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:50:13,064 INFO L82 PathProgramCache]: Analyzing trace with hash 431401882, now seen corresponding path program 1 times [2019-10-07 14:50:13,065 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:50:13,065 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:13,065 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:13,065 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:13,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:50:13,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:50:13,366 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 14:50:13,366 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:13,367 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:50:13,367 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:50:13,470 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:50:13,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:50:13,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:50:13,471 INFO L87 Difference]: Start difference. First operand 415 states and 491 transitions. Second operand 3 states. [2019-10-07 14:50:13,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:50:13,550 INFO L93 Difference]: Finished difference Result 658 states and 770 transitions. [2019-10-07 14:50:13,551 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:50:13,551 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 170 [2019-10-07 14:50:13,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:50:13,555 INFO L225 Difference]: With dead ends: 658 [2019-10-07 14:50:13,556 INFO L226 Difference]: Without dead ends: 417 [2019-10-07 14:50:13,558 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 14:50:13,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2019-10-07 14:50:13,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 417. [2019-10-07 14:50:13,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 417 states. [2019-10-07 14:50:13,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 493 transitions. [2019-10-07 14:50:13,592 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 493 transitions. Word has length 170 [2019-10-07 14:50:13,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:50:13,592 INFO L462 AbstractCegarLoop]: Abstraction has 417 states and 493 transitions. [2019-10-07 14:50:13,592 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:50:13,593 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 493 transitions. [2019-10-07 14:50:13,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2019-10-07 14:50:13,597 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:50:13,597 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-07 14:50:13,598 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:50:13,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:50:13,598 INFO L82 PathProgramCache]: Analyzing trace with hash 150311337, now seen corresponding path program 1 times [2019-10-07 14:50:13,598 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:50:13,599 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:13,599 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:13,599 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:13,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:50:13,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:50:13,769 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 14:50:13,769 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:13,769 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:50:13,769 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:50:13,770 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:50:13,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:50:13,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:50:13,771 INFO L87 Difference]: Start difference. First operand 417 states and 493 transitions. Second operand 3 states. [2019-10-07 14:50:13,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:50:13,806 INFO L93 Difference]: Finished difference Result 818 states and 996 transitions. [2019-10-07 14:50:13,807 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:50:13,807 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 182 [2019-10-07 14:50:13,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:50:13,811 INFO L225 Difference]: With dead ends: 818 [2019-10-07 14:50:13,812 INFO L226 Difference]: Without dead ends: 459 [2019-10-07 14:50:13,814 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 14:50:13,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2019-10-07 14:50:13,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 458. [2019-10-07 14:50:13,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 458 states. [2019-10-07 14:50:13,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 564 transitions. [2019-10-07 14:50:13,861 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 564 transitions. Word has length 182 [2019-10-07 14:50:13,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:50:13,862 INFO L462 AbstractCegarLoop]: Abstraction has 458 states and 564 transitions. [2019-10-07 14:50:13,862 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:50:13,863 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 564 transitions. [2019-10-07 14:50:13,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2019-10-07 14:50:13,870 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:50:13,870 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 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 14:50:13,873 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:50:13,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:50:13,873 INFO L82 PathProgramCache]: Analyzing trace with hash -72650779, now seen corresponding path program 1 times [2019-10-07 14:50:13,873 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:50:13,874 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:13,874 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:13,874 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:13,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:50:13,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:50:14,708 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-10-07 14:50:14,714 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:14,714 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:50:14,715 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2019-10-07 14:50:14,717 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-10-07 14:50:14,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-10-07 14:50:14,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=587, Unknown=0, NotChecked=0, Total=650 [2019-10-07 14:50:14,720 INFO L87 Difference]: Start difference. First operand 458 states and 564 transitions. Second operand 26 states. [2019-10-07 14:50:23,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:50:23,681 INFO L93 Difference]: Finished difference Result 1004 states and 1230 transitions. [2019-10-07 14:50:23,681 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2019-10-07 14:50:23,681 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 183 [2019-10-07 14:50:23,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:50:23,695 INFO L225 Difference]: With dead ends: 1004 [2019-10-07 14:50:23,696 INFO L226 Difference]: Without dead ends: 763 [2019-10-07 14:50:23,700 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 311 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=167, Invalid=1813, Unknown=0, NotChecked=0, Total=1980 [2019-10-07 14:50:23,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 763 states. [2019-10-07 14:50:23,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 763 to 734. [2019-10-07 14:50:23,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 734 states. [2019-10-07 14:50:23,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 734 states to 734 states and 901 transitions. [2019-10-07 14:50:23,792 INFO L78 Accepts]: Start accepts. Automaton has 734 states and 901 transitions. Word has length 183 [2019-10-07 14:50:23,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:50:23,796 INFO L462 AbstractCegarLoop]: Abstraction has 734 states and 901 transitions. [2019-10-07 14:50:23,796 INFO L463 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-10-07 14:50:23,796 INFO L276 IsEmpty]: Start isEmpty. Operand 734 states and 901 transitions. [2019-10-07 14:50:23,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2019-10-07 14:50:23,801 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:50:23,802 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-07 14:50:23,802 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:50:23,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:50:23,803 INFO L82 PathProgramCache]: Analyzing trace with hash 552693849, now seen corresponding path program 1 times [2019-10-07 14:50:23,803 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:50:23,803 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:23,803 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:23,804 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:23,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:50:23,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:50:24,156 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-10-07 14:50:24,157 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:24,157 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:50:24,157 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-07 14:50:24,158 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-07 14:50:24,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-07 14:50:24,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-07 14:50:24,159 INFO L87 Difference]: Start difference. First operand 734 states and 901 transitions. Second operand 10 states. [2019-10-07 14:50:24,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:50:24,233 INFO L93 Difference]: Finished difference Result 1225 states and 1489 transitions. [2019-10-07 14:50:24,233 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-07 14:50:24,233 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 187 [2019-10-07 14:50:24,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:50:24,242 INFO L225 Difference]: With dead ends: 1225 [2019-10-07 14:50:24,242 INFO L226 Difference]: Without dead ends: 754 [2019-10-07 14:50:24,245 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-07 14:50:24,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 754 states. [2019-10-07 14:50:24,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 754 to 738. [2019-10-07 14:50:24,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 738 states. [2019-10-07 14:50:24,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 738 states to 738 states and 905 transitions. [2019-10-07 14:50:24,291 INFO L78 Accepts]: Start accepts. Automaton has 738 states and 905 transitions. Word has length 187 [2019-10-07 14:50:24,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:50:24,296 INFO L462 AbstractCegarLoop]: Abstraction has 738 states and 905 transitions. [2019-10-07 14:50:24,296 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-07 14:50:24,296 INFO L276 IsEmpty]: Start isEmpty. Operand 738 states and 905 transitions. [2019-10-07 14:50:24,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2019-10-07 14:50:24,302 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:50:24,302 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-07 14:50:24,303 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:50:24,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:50:24,303 INFO L82 PathProgramCache]: Analyzing trace with hash -256854287, now seen corresponding path program 1 times [2019-10-07 14:50:24,303 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:50:24,304 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:24,304 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:24,304 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:24,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:50:24,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:50:25,205 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-10-07 14:50:25,205 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:25,205 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:50:25,206 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2019-10-07 14:50:25,206 INFO L442 AbstractCegarLoop]: Interpolant automaton has 33 states [2019-10-07 14:50:25,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2019-10-07 14:50:25,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=969, Unknown=0, NotChecked=0, Total=1056 [2019-10-07 14:50:25,207 INFO L87 Difference]: Start difference. First operand 738 states and 905 transitions. Second operand 33 states. [2019-10-07 14:50:40,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:50:40,282 INFO L93 Difference]: Finished difference Result 1813 states and 2197 transitions. [2019-10-07 14:50:40,282 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2019-10-07 14:50:40,282 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 189 [2019-10-07 14:50:40,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:50:40,290 INFO L225 Difference]: With dead ends: 1813 [2019-10-07 14:50:40,291 INFO L226 Difference]: Without dead ends: 1277 [2019-10-07 14:50:40,294 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 615 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=315, Invalid=3975, Unknown=0, NotChecked=0, Total=4290 [2019-10-07 14:50:40,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1277 states. [2019-10-07 14:50:40,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1277 to 1260. [2019-10-07 14:50:40,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1260 states. [2019-10-07 14:50:40,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1260 states to 1260 states and 1524 transitions. [2019-10-07 14:50:40,364 INFO L78 Accepts]: Start accepts. Automaton has 1260 states and 1524 transitions. Word has length 189 [2019-10-07 14:50:40,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:50:40,364 INFO L462 AbstractCegarLoop]: Abstraction has 1260 states and 1524 transitions. [2019-10-07 14:50:40,364 INFO L463 AbstractCegarLoop]: Interpolant automaton has 33 states. [2019-10-07 14:50:40,365 INFO L276 IsEmpty]: Start isEmpty. Operand 1260 states and 1524 transitions. [2019-10-07 14:50:40,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2019-10-07 14:50:40,369 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:50:40,370 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:50:40,370 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:50:40,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:50:40,370 INFO L82 PathProgramCache]: Analyzing trace with hash 413493526, now seen corresponding path program 1 times [2019-10-07 14:50:40,371 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:50:40,371 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:40,371 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:40,371 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:40,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:50:40,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:50:41,000 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-07 14:50:41,000 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:41,000 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:50:41,000 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2019-10-07 14:50:41,001 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-10-07 14:50:41,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-10-07 14:50:41,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2019-10-07 14:50:41,002 INFO L87 Difference]: Start difference. First operand 1260 states and 1524 transitions. Second operand 25 states. [2019-10-07 14:50:52,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:50:52,863 INFO L93 Difference]: Finished difference Result 3059 states and 3621 transitions. [2019-10-07 14:50:52,864 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2019-10-07 14:50:52,864 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 213 [2019-10-07 14:50:52,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:50:52,875 INFO L225 Difference]: With dead ends: 3059 [2019-10-07 14:50:52,875 INFO L226 Difference]: Without dead ends: 1905 [2019-10-07 14:50:52,880 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 460 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=253, Invalid=2399, Unknown=0, NotChecked=0, Total=2652 [2019-10-07 14:50:52,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1905 states. [2019-10-07 14:50:52,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1905 to 1823. [2019-10-07 14:50:52,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1823 states. [2019-10-07 14:50:52,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1823 states to 1823 states and 2190 transitions. [2019-10-07 14:50:52,976 INFO L78 Accepts]: Start accepts. Automaton has 1823 states and 2190 transitions. Word has length 213 [2019-10-07 14:50:52,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:50:52,977 INFO L462 AbstractCegarLoop]: Abstraction has 1823 states and 2190 transitions. [2019-10-07 14:50:52,977 INFO L463 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-10-07 14:50:52,977 INFO L276 IsEmpty]: Start isEmpty. Operand 1823 states and 2190 transitions. [2019-10-07 14:50:52,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2019-10-07 14:50:52,983 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:50:52,983 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:50:52,984 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:50:52,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:50:52,984 INFO L82 PathProgramCache]: Analyzing trace with hash 650592607, now seen corresponding path program 1 times [2019-10-07 14:50:52,985 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:50:52,985 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:52,985 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:52,985 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:52,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:50:53,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:50:54,103 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2019-10-07 14:50:54,103 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:54,103 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:50:54,103 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 14:50:54,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:50:54,676 INFO L256 TraceCheckSpWp]: Trace formula consists of 3048 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:50:54,695 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:50:54,825 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-10-07 14:50:54,825 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:50:55,143 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-10-07 14:50:55,143 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 14:50:55,178 INFO L162 IcfgInterpreter]: Started Sifa with 198 locations of interest [2019-10-07 14:50:55,178 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 14:50:55,186 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 14:50:55,195 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 14:50:55,196 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 14:51:58,185 WARN L191 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 686 [2019-10-07 14:52:02,600 WARN L191 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 324 DAG size of output: 263 [2019-10-07 14:52:02,998 WARN L191 SmtUtils]: Spent 391.00 ms on a formula simplification that was a NOOP. DAG size: 731 [2019-10-07 14:52:03,332 WARN L191 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 731 [2019-10-07 14:52:03,598 WARN L191 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 731 [2019-10-07 14:52:03,745 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 447 [2019-10-07 14:52:04,410 WARN L191 SmtUtils]: Spent 663.00 ms on a formula simplification that was a NOOP. DAG size: 1027 [2019-10-07 14:52:05,070 WARN L191 SmtUtils]: Spent 631.00 ms on a formula simplification that was a NOOP. DAG size: 1027 [2019-10-07 14:52:05,752 WARN L191 SmtUtils]: Spent 678.00 ms on a formula simplification that was a NOOP. DAG size: 1027 [2019-10-07 14:52:05,892 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 447 [2019-10-07 14:52:06,543 WARN L191 SmtUtils]: Spent 649.00 ms on a formula simplification that was a NOOP. DAG size: 1027 [2019-10-07 14:52:07,791 WARN L191 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 1029 DAG size of output: 1027 [2019-10-07 14:52:08,433 WARN L191 SmtUtils]: Spent 638.00 ms on a formula simplification that was a NOOP. DAG size: 1027 [2019-10-07 14:52:08,602 WARN L191 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 447 [2019-10-07 14:52:09,278 WARN L191 SmtUtils]: Spent 674.00 ms on a formula simplification that was a NOOP. DAG size: 1027 [2019-10-07 14:52:09,887 WARN L191 SmtUtils]: Spent 605.00 ms on a formula simplification that was a NOOP. DAG size: 1027 [2019-10-07 14:52:10,536 WARN L191 SmtUtils]: Spent 646.00 ms on a formula simplification that was a NOOP. DAG size: 1027 [2019-10-07 14:52:10,660 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 447 [2019-10-07 14:52:11,318 WARN L191 SmtUtils]: Spent 656.00 ms on a formula simplification that was a NOOP. DAG size: 1027 [2019-10-07 14:52:11,346 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 559 for LOIs [2019-10-07 14:52:11,636 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 559 [2019-10-07 14:52:11,812 WARN L191 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 652 [2019-10-07 14:52:11,915 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 652 [2019-10-07 14:52:12,039 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 447 [2019-10-07 14:52:12,498 WARN L191 SmtUtils]: Spent 456.00 ms on a formula simplification that was a NOOP. DAG size: 948 [2019-10-07 14:52:12,499 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1073 for LOIs [2019-10-07 14:52:13,135 WARN L191 SmtUtils]: Spent 634.00 ms on a formula simplification that was a NOOP. DAG size: 1073 [2019-10-07 14:52:13,753 WARN L191 SmtUtils]: Spent 615.00 ms on a formula simplification that was a NOOP. DAG size: 1073 [2019-10-07 14:52:14,008 WARN L191 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 588 [2019-10-07 14:52:14,934 WARN L191 SmtUtils]: Spent 924.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 14:52:15,586 WARN L191 SmtUtils]: Spent 636.00 ms on a formula simplification that was a NOOP. DAG size: 1073 [2019-10-07 14:52:16,207 WARN L191 SmtUtils]: Spent 618.00 ms on a formula simplification that was a NOOP. DAG size: 1073 [2019-10-07 14:52:16,478 WARN L191 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 588 [2019-10-07 14:52:17,397 WARN L191 SmtUtils]: Spent 916.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 14:52:18,038 WARN L191 SmtUtils]: Spent 609.00 ms on a formula simplification that was a NOOP. DAG size: 1073 [2019-10-07 14:52:18,642 WARN L191 SmtUtils]: Spent 598.00 ms on a formula simplification that was a NOOP. DAG size: 1073 [2019-10-07 14:52:18,869 WARN L191 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 588 [2019-10-07 14:52:19,788 WARN L191 SmtUtils]: Spent 917.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 14:52:20,843 WARN L191 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 1217 DAG size of output: 1073 [2019-10-07 14:52:21,458 WARN L191 SmtUtils]: Spent 611.00 ms on a formula simplification that was a NOOP. DAG size: 1073 [2019-10-07 14:52:21,839 WARN L191 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 590 DAG size of output: 588 [2019-10-07 14:52:22,732 WARN L191 SmtUtils]: Spent 890.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 14:52:23,374 WARN L191 SmtUtils]: Spent 622.00 ms on a formula simplification that was a NOOP. DAG size: 1073 [2019-10-07 14:52:23,970 WARN L191 SmtUtils]: Spent 593.00 ms on a formula simplification that was a NOOP. DAG size: 1073 [2019-10-07 14:52:24,178 WARN L191 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 588 [2019-10-07 14:52:25,070 WARN L191 SmtUtils]: Spent 889.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 14:52:25,673 WARN L191 SmtUtils]: Spent 599.00 ms on a formula simplification that was a NOOP. DAG size: 1073 [2019-10-07 14:52:26,300 WARN L191 SmtUtils]: Spent 623.00 ms on a formula simplification that was a NOOP. DAG size: 1073 [2019-10-07 14:52:26,512 WARN L191 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 588 [2019-10-07 14:52:27,388 WARN L191 SmtUtils]: Spent 874.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 14:52:27,986 WARN L191 SmtUtils]: Spent 596.00 ms on a formula simplification that was a NOOP. DAG size: 1073 [2019-10-07 14:52:28,587 WARN L191 SmtUtils]: Spent 597.00 ms on a formula simplification that was a NOOP. DAG size: 1073 [2019-10-07 14:52:28,797 WARN L191 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 588 [2019-10-07 14:52:29,681 WARN L191 SmtUtils]: Spent 882.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 14:52:30,279 WARN L191 SmtUtils]: Spent 594.00 ms on a formula simplification that was a NOOP. DAG size: 1073 [2019-10-07 14:52:30,893 WARN L191 SmtUtils]: Spent 610.00 ms on a formula simplification that was a NOOP. DAG size: 1073 [2019-10-07 14:52:31,100 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 588 [2019-10-07 14:52:31,969 WARN L191 SmtUtils]: Spent 866.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 14:52:32,586 WARN L191 SmtUtils]: Spent 614.00 ms on a formula simplification that was a NOOP. DAG size: 1073 [2019-10-07 14:52:33,191 WARN L191 SmtUtils]: Spent 601.00 ms on a formula simplification that was a NOOP. DAG size: 1073 [2019-10-07 14:52:33,395 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 588 [2019-10-07 14:52:34,264 WARN L191 SmtUtils]: Spent 867.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 14:52:34,872 WARN L191 SmtUtils]: Spent 605.00 ms on a formula simplification that was a NOOP. DAG size: 1073 [2019-10-07 14:52:35,466 WARN L191 SmtUtils]: Spent 590.00 ms on a formula simplification that was a NOOP. DAG size: 1073 [2019-10-07 14:52:35,677 WARN L191 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 588 [2019-10-07 14:52:36,555 WARN L191 SmtUtils]: Spent 876.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 14:52:37,164 WARN L191 SmtUtils]: Spent 606.00 ms on a formula simplification that was a NOOP. DAG size: 1073 [2019-10-07 14:52:37,773 WARN L191 SmtUtils]: Spent 606.00 ms on a formula simplification that was a NOOP. DAG size: 1073 [2019-10-07 14:52:38,012 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 588 [2019-10-07 14:52:38,884 WARN L191 SmtUtils]: Spent 869.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 14:52:39,474 WARN L191 SmtUtils]: Spent 588.00 ms on a formula simplification that was a NOOP. DAG size: 1073 [2019-10-07 14:52:40,078 WARN L191 SmtUtils]: Spent 600.00 ms on a formula simplification that was a NOOP. DAG size: 1073 [2019-10-07 14:52:40,282 WARN L191 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 588 [2019-10-07 14:52:41,171 WARN L191 SmtUtils]: Spent 886.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 14:52:41,768 WARN L191 SmtUtils]: Spent 595.00 ms on a formula simplification that was a NOOP. DAG size: 1073 [2019-10-07 14:52:42,391 WARN L191 SmtUtils]: Spent 619.00 ms on a formula simplification that was a NOOP. DAG size: 1073 [2019-10-07 14:52:42,607 WARN L191 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 588 [2019-10-07 14:52:43,485 WARN L191 SmtUtils]: Spent 875.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 14:52:44,429 WARN L191 SmtUtils]: Spent 897.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 14:52:45,308 WARN L191 SmtUtils]: Spent 875.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 14:52:45,547 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 588 [2019-10-07 14:52:46,409 WARN L191 SmtUtils]: Spent 859.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 14:52:48,018 WARN L191 SmtUtils]: Spent 1.60 s on a formula simplification. DAG size of input: 1217 DAG size of output: 1215 [2019-10-07 14:52:48,886 WARN L191 SmtUtils]: Spent 864.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 14:52:49,106 WARN L191 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 588 [2019-10-07 14:52:49,971 WARN L191 SmtUtils]: Spent 863.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 14:52:50,834 WARN L191 SmtUtils]: Spent 860.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 14:52:51,705 WARN L191 SmtUtils]: Spent 867.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 14:52:51,913 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 588 [2019-10-07 14:52:52,779 WARN L191 SmtUtils]: Spent 864.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 14:52:53,717 WARN L191 SmtUtils]: Spent 905.00 ms on a formula simplification that was a NOOP. DAG size: 1219 [2019-10-07 14:52:54,585 WARN L191 SmtUtils]: Spent 864.00 ms on a formula simplification that was a NOOP. DAG size: 1219 [2019-10-07 14:52:54,797 WARN L191 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 591 [2019-10-07 14:52:55,672 WARN L191 SmtUtils]: Spent 873.00 ms on a formula simplification that was a NOOP. DAG size: 1219 [2019-10-07 14:52:56,568 WARN L191 SmtUtils]: Spent 879.00 ms on a formula simplification that was a NOOP. DAG size: 1219 [2019-10-07 14:52:57,457 WARN L191 SmtUtils]: Spent 885.00 ms on a formula simplification that was a NOOP. DAG size: 1219 [2019-10-07 14:52:57,680 WARN L191 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 591 [2019-10-07 14:52:58,563 WARN L191 SmtUtils]: Spent 881.00 ms on a formula simplification that was a NOOP. DAG size: 1219 [2019-10-07 14:52:59,440 WARN L191 SmtUtils]: Spent 874.00 ms on a formula simplification that was a NOOP. DAG size: 1219 [2019-10-07 14:53:00,315 WARN L191 SmtUtils]: Spent 871.00 ms on a formula simplification that was a NOOP. DAG size: 1219 [2019-10-07 14:53:00,528 WARN L191 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 591 [2019-10-07 14:53:01,404 WARN L191 SmtUtils]: Spent 874.00 ms on a formula simplification that was a NOOP. DAG size: 1219 [2019-10-07 14:53:02,483 WARN L191 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:53:03,359 WARN L191 SmtUtils]: Spent 872.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:53:03,640 WARN L191 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 591 [2019-10-07 14:53:04,535 WARN L191 SmtUtils]: Spent 893.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:53:05,414 WARN L191 SmtUtils]: Spent 875.00 ms on a formula simplification that was a NOOP. DAG size: 1226 [2019-10-07 14:53:06,292 WARN L191 SmtUtils]: Spent 874.00 ms on a formula simplification that was a NOOP. DAG size: 1226 [2019-10-07 14:53:06,506 WARN L191 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 591 [2019-10-07 14:53:07,394 WARN L191 SmtUtils]: Spent 886.00 ms on a formula simplification that was a NOOP. DAG size: 1226 [2019-10-07 14:53:09,068 WARN L191 SmtUtils]: Spent 1.63 s on a formula simplification. DAG size of input: 1217 DAG size of output: 1215 [2019-10-07 14:53:09,939 WARN L191 SmtUtils]: Spent 867.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 14:53:10,165 WARN L191 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 588 [2019-10-07 14:53:11,030 WARN L191 SmtUtils]: Spent 863.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 14:53:12,845 WARN L191 SmtUtils]: Spent 1.80 s on a formula simplification. DAG size of input: 1217 DAG size of output: 1215 [2019-10-07 14:53:13,716 WARN L191 SmtUtils]: Spent 867.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 14:53:13,950 WARN L191 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 588 [2019-10-07 14:53:14,829 WARN L191 SmtUtils]: Spent 877.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 14:53:15,698 WARN L191 SmtUtils]: Spent 865.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 14:53:16,594 WARN L191 SmtUtils]: Spent 892.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 14:53:16,806 WARN L191 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 588 [2019-10-07 14:53:17,684 WARN L191 SmtUtils]: Spent 876.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 14:53:19,608 WARN L191 SmtUtils]: Spent 1.88 s on a formula simplification. DAG size of input: 1217 DAG size of output: 1215 [2019-10-07 14:53:20,476 WARN L191 SmtUtils]: Spent 864.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 14:53:20,688 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 588 [2019-10-07 14:53:21,555 WARN L191 SmtUtils]: Spent 865.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 14:53:23,152 WARN L191 SmtUtils]: Spent 1.58 s on a formula simplification. DAG size of input: 1217 DAG size of output: 1215 [2019-10-07 14:53:24,016 WARN L191 SmtUtils]: Spent 860.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 14:53:24,235 WARN L191 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 588 [2019-10-07 14:53:25,129 WARN L191 SmtUtils]: Spent 891.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 14:53:26,014 WARN L191 SmtUtils]: Spent 882.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 14:53:26,884 WARN L191 SmtUtils]: Spent 866.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 14:53:27,090 WARN L191 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 588 [2019-10-07 14:53:27,970 WARN L191 SmtUtils]: Spent 877.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 14:53:29,497 WARN L191 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 1221 DAG size of output: 1217 [2019-10-07 14:53:30,399 WARN L191 SmtUtils]: Spent 898.00 ms on a formula simplification that was a NOOP. DAG size: 1217 [2019-10-07 14:53:30,614 WARN L191 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 591 [2019-10-07 14:53:31,490 WARN L191 SmtUtils]: Spent 874.00 ms on a formula simplification that was a NOOP. DAG size: 1219 [2019-10-07 14:53:33,090 WARN L191 SmtUtils]: Spent 1.58 s on a formula simplification. DAG size of input: 1221 DAG size of output: 1219 [2019-10-07 14:53:33,970 WARN L191 SmtUtils]: Spent 876.00 ms on a formula simplification that was a NOOP. DAG size: 1219 [2019-10-07 14:53:34,191 WARN L191 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 591 [2019-10-07 14:53:35,070 WARN L191 SmtUtils]: Spent 877.00 ms on a formula simplification that was a NOOP. DAG size: 1219 [2019-10-07 14:53:36,584 WARN L191 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 1221 DAG size of output: 1217 [2019-10-07 14:53:37,471 WARN L191 SmtUtils]: Spent 882.00 ms on a formula simplification that was a NOOP. DAG size: 1217 [2019-10-07 14:53:37,687 WARN L191 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 591 [2019-10-07 14:53:38,573 WARN L191 SmtUtils]: Spent 885.00 ms on a formula simplification that was a NOOP. DAG size: 1219 [2019-10-07 14:53:40,175 WARN L191 SmtUtils]: Spent 1.59 s on a formula simplification. DAG size of input: 1226 DAG size of output: 1217 [2019-10-07 14:53:41,050 WARN L191 SmtUtils]: Spent 871.00 ms on a formula simplification that was a NOOP. DAG size: 1217 [2019-10-07 14:53:41,269 WARN L191 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 591 [2019-10-07 14:53:42,151 WARN L191 SmtUtils]: Spent 880.00 ms on a formula simplification that was a NOOP. DAG size: 1219 [2019-10-07 14:53:43,784 WARN L191 SmtUtils]: Spent 1.63 s on a formula simplification. DAG size of input: 1228 DAG size of output: 1219 [2019-10-07 14:53:44,681 WARN L191 SmtUtils]: Spent 894.00 ms on a formula simplification that was a NOOP. DAG size: 1219 [2019-10-07 14:53:44,922 WARN L191 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 591 [2019-10-07 14:53:45,815 WARN L191 SmtUtils]: Spent 891.00 ms on a formula simplification that was a NOOP. DAG size: 1221 [2019-10-07 14:53:46,072 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:53:46,073 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 14:53:46,081 INFO L168 Benchmark]: Toolchain (without parser) took 220187.63 ms. Allocated memory was 145.2 MB in the beginning and 630.2 MB in the end (delta: 485.0 MB). Free memory was 100.4 MB in the beginning and 26.7 MB in the end (delta: 73.6 MB). Peak memory consumption was 558.6 MB. Max. memory is 7.1 GB. [2019-10-07 14:53:46,081 INFO L168 Benchmark]: CDTParser took 1.19 ms. Allocated memory is still 145.2 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-10-07 14:53:46,082 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1102.68 ms. Allocated memory was 145.2 MB in the beginning and 203.4 MB in the end (delta: 58.2 MB). Free memory was 100.1 MB in the beginning and 129.9 MB in the end (delta: -29.8 MB). Peak memory consumption was 36.4 MB. Max. memory is 7.1 GB. [2019-10-07 14:53:46,083 INFO L168 Benchmark]: Boogie Preprocessor took 225.07 ms. Allocated memory is still 203.4 MB. Free memory was 129.9 MB in the beginning and 120.6 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2019-10-07 14:53:46,083 INFO L168 Benchmark]: RCFGBuilder took 4678.64 ms. Allocated memory was 203.4 MB in the beginning and 296.7 MB in the end (delta: 93.3 MB). Free memory was 120.6 MB in the beginning and 249.3 MB in the end (delta: -128.7 MB). Peak memory consumption was 137.0 MB. Max. memory is 7.1 GB. [2019-10-07 14:53:46,084 INFO L168 Benchmark]: TraceAbstraction took 214176.74 ms. Allocated memory was 296.7 MB in the beginning and 630.2 MB in the end (delta: 333.4 MB). Free memory was 249.3 MB in the beginning and 26.7 MB in the end (delta: 222.6 MB). Peak memory consumption was 556.0 MB. Max. memory is 7.1 GB. [2019-10-07 14:53:46,087 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.19 ms. Allocated memory is still 145.2 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1102.68 ms. Allocated memory was 145.2 MB in the beginning and 203.4 MB in the end (delta: 58.2 MB). Free memory was 100.1 MB in the beginning and 129.9 MB in the end (delta: -29.8 MB). Peak memory consumption was 36.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 225.07 ms. Allocated memory is still 203.4 MB. Free memory was 129.9 MB in the beginning and 120.6 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4678.64 ms. Allocated memory was 203.4 MB in the beginning and 296.7 MB in the end (delta: 93.3 MB). Free memory was 120.6 MB in the beginning and 249.3 MB in the end (delta: -128.7 MB). Peak memory consumption was 137.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 214176.74 ms. Allocated memory was 296.7 MB in the beginning and 630.2 MB in the end (delta: 333.4 MB). Free memory was 249.3 MB in the beginning and 26.7 MB in the end (delta: 222.6 MB). Peak memory consumption was 556.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...