java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/email_spec4_product31.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 14:58:08,268 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 14:58:08,270 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 14:58:08,282 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 14:58:08,283 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 14:58:08,284 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 14:58:08,285 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 14:58:08,287 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 14:58:08,288 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 14:58:08,290 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 14:58:08,291 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 14:58:08,293 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 14:58:08,293 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 14:58:08,294 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 14:58:08,301 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 14:58:08,302 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 14:58:08,305 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 14:58:08,306 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 14:58:08,309 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 14:58:08,311 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 14:58:08,313 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 14:58:08,315 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 14:58:08,318 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 14:58:08,318 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 14:58:08,320 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 14:58:08,320 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 14:58:08,321 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 14:58:08,322 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 14:58:08,322 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 14:58:08,323 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 14:58:08,323 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 14:58:08,324 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 14:58:08,325 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 14:58:08,325 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 14:58:08,326 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 14:58:08,327 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 14:58:08,327 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 14:58:08,328 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 14:58:08,328 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 14:58:08,329 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 14:58:08,329 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 14:58:08,330 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 14:58:08,344 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 14:58:08,344 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 14:58:08,345 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 14:58:08,346 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 14:58:08,346 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 14:58:08,346 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 14:58:08,346 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 14:58:08,347 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 14:58:08,347 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 14:58:08,347 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 14:58:08,347 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 14:58:08,347 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 14:58:08,347 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 14:58:08,348 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 14:58:08,348 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 14:58:08,348 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 14:58:08,348 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 14:58:08,348 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 14:58:08,349 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 14:58:08,349 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 14:58:08,349 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 14:58:08,349 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:58:08,349 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 14:58:08,350 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 14:58:08,350 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 14:58:08,350 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 14:58:08,350 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 14:58:08,350 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 14:58:08,351 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 14:58:08,639 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 14:58:08,658 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 14:58:08,662 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 14:58:08,663 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 14:58:08,664 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 14:58:08,664 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec4_product31.cil.c [2019-10-07 14:58:08,744 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87f4cbde4/e918862e90e7455f8ab5dbef84a17c81/FLAG8ffb7a343 [2019-10-07 14:58:09,403 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 14:58:09,406 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec4_product31.cil.c [2019-10-07 14:58:09,436 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87f4cbde4/e918862e90e7455f8ab5dbef84a17c81/FLAG8ffb7a343 [2019-10-07 14:58:09,583 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87f4cbde4/e918862e90e7455f8ab5dbef84a17c81 [2019-10-07 14:58:09,592 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 14:58:09,594 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 14:58:09,595 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 14:58:09,595 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 14:58:09,598 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 14:58:09,598 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:58:09" (1/1) ... [2019-10-07 14:58:09,601 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bb33164 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:58:09, skipping insertion in model container [2019-10-07 14:58:09,601 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:58:09" (1/1) ... [2019-10-07 14:58:09,608 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 14:58:09,683 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 14:58:10,420 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:58:10,437 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 14:58:10,569 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:58:10,675 INFO L192 MainTranslator]: Completed translation [2019-10-07 14:58:10,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:58:10 WrapperNode [2019-10-07 14:58:10,676 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 14:58:10,677 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 14:58:10,677 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 14:58:10,677 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 14:58:10,695 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:58:10" (1/1) ... [2019-10-07 14:58:10,696 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:58:10" (1/1) ... [2019-10-07 14:58:10,727 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:58:10" (1/1) ... [2019-10-07 14:58:10,727 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:58:10" (1/1) ... [2019-10-07 14:58:10,808 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:58:10" (1/1) ... [2019-10-07 14:58:10,841 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:58:10" (1/1) ... [2019-10-07 14:58:10,860 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:58:10" (1/1) ... [2019-10-07 14:58:10,877 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 14:58:10,883 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 14:58:10,884 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 14:58:10,884 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 14:58:10,885 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:58:10" (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 14:58:10,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 14:58:10,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 14:58:10,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 14:58:10,948 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-07 14:58:10,948 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-07 14:58:10,948 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-07 14:58:10,948 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-07 14:58:10,949 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-07 14:58:10,949 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-07 14:58:10,949 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-07 14:58:10,949 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-07 14:58:10,949 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-07 14:58:10,950 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-07 14:58:10,950 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-07 14:58:10,950 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-07 14:58:10,950 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-07 14:58:10,951 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-07 14:58:10,951 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-07 14:58:10,951 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-07 14:58:10,951 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-07 14:58:10,952 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-07 14:58:10,952 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-07 14:58:10,952 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-07 14:58:10,952 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-07 14:58:10,952 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-07 14:58:10,953 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-07 14:58:10,953 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-07 14:58:10,953 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-07 14:58:10,953 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-07 14:58:10,953 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-07 14:58:10,954 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-07 14:58:10,954 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-07 14:58:10,954 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 14:58:10,954 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 14:58:10,954 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 14:58:10,955 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 14:58:10,955 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 14:58:10,955 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 14:58:10,955 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 14:58:10,955 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-07 14:58:10,955 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-07 14:58:10,956 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-07 14:58:10,956 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-07 14:58:10,956 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-07 14:58:10,956 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-07 14:58:10,956 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-07 14:58:10,956 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-07 14:58:10,956 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 14:58:10,957 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 14:58:10,957 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-07 14:58:10,957 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-07 14:58:10,957 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-07 14:58:10,957 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-07 14:58:10,958 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-07 14:58:10,958 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-07 14:58:10,958 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-07 14:58:10,958 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-07 14:58:10,958 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-07 14:58:10,958 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-07 14:58:10,959 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-07 14:58:10,959 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-07 14:58:10,959 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-07 14:58:10,959 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-07 14:58:10,959 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-07 14:58:10,959 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-07 14:58:10,960 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-07 14:58:10,960 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-07 14:58:10,960 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-07 14:58:10,960 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-07 14:58:10,960 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-07 14:58:10,960 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-07 14:58:10,960 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-07 14:58:10,961 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-07 14:58:10,961 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-07 14:58:10,961 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-07 14:58:10,961 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-07 14:58:10,961 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-07 14:58:10,961 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-07 14:58:10,961 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-07 14:58:10,962 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-07 14:58:10,962 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-07 14:58:10,962 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-07 14:58:10,962 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-07 14:58:10,962 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-07 14:58:10,962 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-07 14:58:10,963 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-07 14:58:10,963 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-07 14:58:10,963 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-07 14:58:10,963 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-07 14:58:10,963 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-07 14:58:10,963 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-07 14:58:10,963 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-07 14:58:10,964 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-07 14:58:10,964 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-07 14:58:10,964 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-07 14:58:10,964 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-07 14:58:10,964 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-07 14:58:10,964 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-07 14:58:10,965 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-07 14:58:10,965 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-07 14:58:10,965 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignForward_spec__1 [2019-10-07 14:58:10,965 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-07 14:58:10,965 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Encrypt [2019-10-07 14:58:10,965 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-07 14:58:10,965 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-07 14:58:10,966 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-07 14:58:10,966 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-07 14:58:10,966 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-07 14:58:10,966 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-07 14:58:10,966 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 14:58:10,966 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 14:58:10,966 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 14:58:10,967 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 14:58:10,967 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-07 14:58:10,967 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 14:58:10,967 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 14:58:10,967 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 14:58:10,967 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-07 14:58:10,968 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-07 14:58:10,968 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-07 14:58:10,968 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-07 14:58:10,968 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-07 14:58:10,968 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-07 14:58:10,968 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-07 14:58:10,969 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-07 14:58:10,969 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-07 14:58:10,969 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-07 14:58:10,969 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-07 14:58:10,969 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-07 14:58:10,969 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-07 14:58:10,969 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-07 14:58:10,970 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-07 14:58:10,970 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-07 14:58:10,970 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-07 14:58:10,970 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-07 14:58:10,970 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-07 14:58:10,971 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-07 14:58:10,971 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-07 14:58:10,971 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-07 14:58:10,971 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-07 14:58:10,971 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-07 14:58:10,971 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-07 14:58:10,971 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-07 14:58:10,972 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-07 14:58:10,972 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-07 14:58:10,972 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-07 14:58:10,972 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 14:58:10,972 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 14:58:10,972 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 14:58:10,973 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 14:58:10,973 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 14:58:10,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 14:58:10,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 14:58:10,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 14:58:10,973 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 14:58:10,973 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 14:58:10,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 14:58:10,974 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 14:58:10,974 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 14:58:10,974 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 14:58:10,974 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 14:58:10,974 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 14:58:10,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 14:58:10,975 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 14:58:10,975 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 14:58:10,975 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-07 14:58:10,975 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 14:58:10,975 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 14:58:10,975 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 14:58:10,975 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-07 14:58:10,976 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-07 14:58:10,976 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-07 14:58:10,976 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-07 14:58:10,976 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-07 14:58:10,976 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-07 14:58:10,976 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-07 14:58:10,976 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-07 14:58:10,977 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-07 14:58:10,977 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-07 14:58:10,977 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-07 14:58:10,977 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 14:58:10,977 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 14:58:10,977 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 14:58:10,977 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-07 14:58:10,977 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-07 14:58:10,978 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-07 14:58:10,978 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-07 14:58:10,978 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-07 14:58:10,978 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-07 14:58:10,978 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-07 14:58:10,978 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-07 14:58:10,978 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-07 14:58:10,979 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-07 14:58:10,979 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-07 14:58:10,979 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-07 14:58:10,979 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-07 14:58:10,979 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-07 14:58:10,979 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-07 14:58:10,979 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-07 14:58:10,980 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-07 14:58:10,980 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-07 14:58:10,980 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-07 14:58:10,980 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-07 14:58:10,980 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-07 14:58:10,980 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-07 14:58:10,980 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-07 14:58:10,981 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-07 14:58:10,981 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-07 14:58:10,981 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-07 14:58:10,981 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-07 14:58:10,981 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-07 14:58:10,981 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-07 14:58:10,981 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-07 14:58:10,982 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-07 14:58:10,982 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-07 14:58:10,982 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-07 14:58:10,982 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-07 14:58:10,982 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-07 14:58:10,982 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-07 14:58:10,983 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-07 14:58:10,983 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-07 14:58:10,983 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-07 14:58:10,983 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-07 14:58:10,983 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-07 14:58:10,983 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-07 14:58:10,984 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-07 14:58:10,984 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-07 14:58:10,984 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-07 14:58:10,984 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-07 14:58:10,984 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignForward_spec__1 [2019-10-07 14:58:10,984 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-07 14:58:10,985 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-07 14:58:10,985 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-07 14:58:10,985 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-07 14:58:10,985 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-07 14:58:10,985 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-07 14:58:10,985 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-07 14:58:10,986 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Encrypt [2019-10-07 14:58:10,986 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-07 14:58:10,986 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-07 14:58:10,986 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 14:58:10,986 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-07 14:58:10,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 14:58:10,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 14:58:10,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 14:58:15,380 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 14:58:15,381 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-07 14:58:15,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:58:15 BoogieIcfgContainer [2019-10-07 14:58:15,383 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 14:58:15,384 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 14:58:15,384 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 14:58:15,388 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 14:58:15,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 02:58:09" (1/3) ... [2019-10-07 14:58:15,389 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22e374d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:58:15, skipping insertion in model container [2019-10-07 14:58:15,389 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:58:10" (2/3) ... [2019-10-07 14:58:15,389 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22e374d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:58:15, skipping insertion in model container [2019-10-07 14:58:15,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:58:15" (3/3) ... [2019-10-07 14:58:15,391 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec4_product31.cil.c [2019-10-07 14:58:15,401 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 14:58:15,410 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 14:58:15,422 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 14:58:15,452 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 14:58:15,453 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 14:58:15,453 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 14:58:15,453 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 14:58:15,453 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 14:58:15,453 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 14:58:15,454 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 14:58:15,454 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 14:58:15,485 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2019-10-07 14:58:15,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2019-10-07 14:58:15,502 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:58:15,504 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:58:15,506 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:58:15,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:58:15,512 INFO L82 PathProgramCache]: Analyzing trace with hash 962481259, now seen corresponding path program 1 times [2019-10-07 14:58:15,522 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:58:15,523 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:58:15,523 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:58:15,523 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:58:15,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:58:15,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:58:16,240 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 14:58:16,241 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:58:16,242 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:58:16,242 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 14:58:16,249 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 14:58:16,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 14:58:16,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 14:58:16,267 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 2 states. [2019-10-07 14:58:16,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:58:16,377 INFO L93 Difference]: Finished difference Result 628 states and 744 transitions. [2019-10-07 14:58:16,378 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 14:58:16,379 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 129 [2019-10-07 14:58:16,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:58:16,413 INFO L225 Difference]: With dead ends: 628 [2019-10-07 14:58:16,414 INFO L226 Difference]: Without dead ends: 389 [2019-10-07 14:58:16,425 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 14:58:16,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2019-10-07 14:58:16,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 389. [2019-10-07 14:58:16,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 389 states. [2019-10-07 14:58:16,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 460 transitions. [2019-10-07 14:58:16,557 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 460 transitions. Word has length 129 [2019-10-07 14:58:16,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:58:16,560 INFO L462 AbstractCegarLoop]: Abstraction has 389 states and 460 transitions. [2019-10-07 14:58:16,560 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 14:58:16,561 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 460 transitions. [2019-10-07 14:58:16,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2019-10-07 14:58:16,573 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:58:16,573 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:58:16,574 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:58:16,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:58:16,574 INFO L82 PathProgramCache]: Analyzing trace with hash 510617471, now seen corresponding path program 1 times [2019-10-07 14:58:16,575 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:58:16,575 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:58:16,575 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:58:16,575 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:58:16,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:58:16,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:58:16,788 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 14:58:16,789 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:58:16,789 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:58:16,789 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:58:16,795 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:58:16,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:58:16,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:58:16,796 INFO L87 Difference]: Start difference. First operand 389 states and 460 transitions. Second operand 3 states. [2019-10-07 14:58:16,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:58:16,853 INFO L93 Difference]: Finished difference Result 613 states and 715 transitions. [2019-10-07 14:58:16,854 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:58:16,854 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 130 [2019-10-07 14:58:16,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:58:16,862 INFO L225 Difference]: With dead ends: 613 [2019-10-07 14:58:16,862 INFO L226 Difference]: Without dead ends: 391 [2019-10-07 14:58:16,865 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 14:58:16,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2019-10-07 14:58:16,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 391. [2019-10-07 14:58:16,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 391 states. [2019-10-07 14:58:16,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 462 transitions. [2019-10-07 14:58:16,888 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 462 transitions. Word has length 130 [2019-10-07 14:58:16,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:58:16,891 INFO L462 AbstractCegarLoop]: Abstraction has 391 states and 462 transitions. [2019-10-07 14:58:16,891 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:58:16,891 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 462 transitions. [2019-10-07 14:58:16,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2019-10-07 14:58:16,895 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:58:16,896 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:58:16,896 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:58:16,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:58:16,897 INFO L82 PathProgramCache]: Analyzing trace with hash 1948603177, now seen corresponding path program 1 times [2019-10-07 14:58:16,897 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:58:16,897 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:58:16,897 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:58:16,897 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:58:16,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:58:16,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:58:17,074 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 14:58:17,074 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:58:17,074 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:58:17,075 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:58:17,075 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:58:17,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:58:17,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:58:17,076 INFO L87 Difference]: Start difference. First operand 391 states and 462 transitions. Second operand 3 states. [2019-10-07 14:58:17,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:58:17,124 INFO L93 Difference]: Finished difference Result 764 states and 931 transitions. [2019-10-07 14:58:17,125 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:58:17,125 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 135 [2019-10-07 14:58:17,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:58:17,133 INFO L225 Difference]: With dead ends: 764 [2019-10-07 14:58:17,133 INFO L226 Difference]: Without dead ends: 431 [2019-10-07 14:58:17,135 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 14:58:17,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2019-10-07 14:58:17,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 430. [2019-10-07 14:58:17,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 430 states. [2019-10-07 14:58:17,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 530 transitions. [2019-10-07 14:58:17,215 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 530 transitions. Word has length 135 [2019-10-07 14:58:17,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:58:17,216 INFO L462 AbstractCegarLoop]: Abstraction has 430 states and 530 transitions. [2019-10-07 14:58:17,216 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:58:17,216 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 530 transitions. [2019-10-07 14:58:17,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2019-10-07 14:58:17,221 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:58:17,221 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:58:17,222 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:58:17,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:58:17,222 INFO L82 PathProgramCache]: Analyzing trace with hash 2091251203, now seen corresponding path program 1 times [2019-10-07 14:58:17,222 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:58:17,222 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:58:17,223 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:58:17,224 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:58:17,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:58:17,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:58:17,775 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 14:58:17,776 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:58:17,776 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:58:17,776 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2019-10-07 14:58:17,778 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2019-10-07 14:58:17,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2019-10-07 14:58:17,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2019-10-07 14:58:17,781 INFO L87 Difference]: Start difference. First operand 430 states and 530 transitions. Second operand 21 states. [2019-10-07 14:58:26,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:58:26,476 INFO L93 Difference]: Finished difference Result 892 states and 1066 transitions. [2019-10-07 14:58:26,477 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-10-07 14:58:26,477 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 136 [2019-10-07 14:58:26,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:58:26,484 INFO L225 Difference]: With dead ends: 892 [2019-10-07 14:58:26,484 INFO L226 Difference]: Without dead ends: 664 [2019-10-07 14:58:26,486 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=195, Invalid=1527, Unknown=0, NotChecked=0, Total=1722 [2019-10-07 14:58:26,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 664 states. [2019-10-07 14:58:26,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 664 to 657. [2019-10-07 14:58:26,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 657 states. [2019-10-07 14:58:26,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 795 transitions. [2019-10-07 14:58:26,523 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 795 transitions. Word has length 136 [2019-10-07 14:58:26,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:58:26,524 INFO L462 AbstractCegarLoop]: Abstraction has 657 states and 795 transitions. [2019-10-07 14:58:26,524 INFO L463 AbstractCegarLoop]: Interpolant automaton has 21 states. [2019-10-07 14:58:26,524 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 795 transitions. [2019-10-07 14:58:26,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2019-10-07 14:58:26,526 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:58:26,527 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:58:26,527 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:58:26,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:58:26,527 INFO L82 PathProgramCache]: Analyzing trace with hash 138808057, now seen corresponding path program 1 times [2019-10-07 14:58:26,528 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:58:26,528 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:58:26,528 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:58:26,528 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:58:26,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:58:26,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:58:27,163 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 14:58:27,164 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:58:27,164 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:58:27,164 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2019-10-07 14:58:27,165 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2019-10-07 14:58:27,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2019-10-07 14:58:27,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=453, Unknown=0, NotChecked=0, Total=506 [2019-10-07 14:58:27,166 INFO L87 Difference]: Start difference. First operand 657 states and 795 transitions. Second operand 23 states. [2019-10-07 14:58:29,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:58:29,440 INFO L93 Difference]: Finished difference Result 735 states and 885 transitions. [2019-10-07 14:58:29,440 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2019-10-07 14:58:29,440 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 142 [2019-10-07 14:58:29,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:58:29,456 INFO L225 Difference]: With dead ends: 735 [2019-10-07 14:58:29,456 INFO L226 Difference]: Without dead ends: 699 [2019-10-07 14:58:29,458 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 369 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=213, Invalid=1949, Unknown=0, NotChecked=0, Total=2162 [2019-10-07 14:58:29,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2019-10-07 14:58:29,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 694. [2019-10-07 14:58:29,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 694 states. [2019-10-07 14:58:29,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 832 transitions. [2019-10-07 14:58:29,512 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 832 transitions. Word has length 142 [2019-10-07 14:58:29,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:58:29,515 INFO L462 AbstractCegarLoop]: Abstraction has 694 states and 832 transitions. [2019-10-07 14:58:29,515 INFO L463 AbstractCegarLoop]: Interpolant automaton has 23 states. [2019-10-07 14:58:29,515 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 832 transitions. [2019-10-07 14:58:29,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2019-10-07 14:58:29,521 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:58:29,522 INFO L385 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:58:29,522 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:58:29,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:58:29,522 INFO L82 PathProgramCache]: Analyzing trace with hash 343790625, now seen corresponding path program 1 times [2019-10-07 14:58:29,523 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:58:29,523 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:58:29,523 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:58:29,523 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:58:29,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:58:29,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:58:30,382 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-10-07 14:58:30,383 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:58:30,383 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:58:30,383 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2019-10-07 14:58:30,384 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2019-10-07 14:58:30,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2019-10-07 14:58:30,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2019-10-07 14:58:30,386 INFO L87 Difference]: Start difference. First operand 694 states and 832 transitions. Second operand 28 states. [2019-10-07 14:58:41,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:58:41,128 INFO L93 Difference]: Finished difference Result 1415 states and 1674 transitions. [2019-10-07 14:58:41,128 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2019-10-07 14:58:41,128 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 250 [2019-10-07 14:58:41,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:58:41,135 INFO L225 Difference]: With dead ends: 1415 [2019-10-07 14:58:41,136 INFO L226 Difference]: Without dead ends: 1216 [2019-10-07 14:58:41,138 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 710 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=315, Invalid=3717, Unknown=0, NotChecked=0, Total=4032 [2019-10-07 14:58:41,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1216 states. [2019-10-07 14:58:41,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1216 to 1145. [2019-10-07 14:58:41,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1145 states. [2019-10-07 14:58:41,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1145 states to 1145 states and 1345 transitions. [2019-10-07 14:58:41,201 INFO L78 Accepts]: Start accepts. Automaton has 1145 states and 1345 transitions. Word has length 250 [2019-10-07 14:58:41,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:58:41,201 INFO L462 AbstractCegarLoop]: Abstraction has 1145 states and 1345 transitions. [2019-10-07 14:58:41,202 INFO L463 AbstractCegarLoop]: Interpolant automaton has 28 states. [2019-10-07 14:58:41,202 INFO L276 IsEmpty]: Start isEmpty. Operand 1145 states and 1345 transitions. [2019-10-07 14:58:41,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2019-10-07 14:58:41,208 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:58:41,208 INFO L385 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:58:41,209 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:58:41,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:58:41,209 INFO L82 PathProgramCache]: Analyzing trace with hash -1697795808, now seen corresponding path program 1 times [2019-10-07 14:58:41,210 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:58:41,210 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:58:41,210 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:58:41,210 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:58:41,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:58:41,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:58:41,562 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-10-07 14:58:41,563 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:58:41,563 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:58:41,563 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-07 14:58:41,564 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-07 14:58:41,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-07 14:58:41,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-07 14:58:41,566 INFO L87 Difference]: Start difference. First operand 1145 states and 1345 transitions. Second operand 10 states. [2019-10-07 14:58:41,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:58:41,682 INFO L93 Difference]: Finished difference Result 1832 states and 2095 transitions. [2019-10-07 14:58:41,682 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-07 14:58:41,683 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 254 [2019-10-07 14:58:41,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:58:41,693 INFO L225 Difference]: With dead ends: 1832 [2019-10-07 14:58:41,693 INFO L226 Difference]: Without dead ends: 1185 [2019-10-07 14:58:41,695 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 14:58:41,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1185 states. [2019-10-07 14:58:41,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1185 to 1153. [2019-10-07 14:58:41,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1153 states. [2019-10-07 14:58:41,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1153 states to 1153 states and 1353 transitions. [2019-10-07 14:58:41,775 INFO L78 Accepts]: Start accepts. Automaton has 1153 states and 1353 transitions. Word has length 254 [2019-10-07 14:58:41,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:58:41,776 INFO L462 AbstractCegarLoop]: Abstraction has 1153 states and 1353 transitions. [2019-10-07 14:58:41,777 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-07 14:58:41,777 INFO L276 IsEmpty]: Start isEmpty. Operand 1153 states and 1353 transitions. [2019-10-07 14:58:41,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2019-10-07 14:58:41,784 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:58:41,785 INFO L385 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:58:41,785 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:58:41,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:58:41,785 INFO L82 PathProgramCache]: Analyzing trace with hash 924266258, now seen corresponding path program 1 times [2019-10-07 14:58:41,786 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:58:41,786 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:58:41,786 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:58:41,786 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:58:41,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:58:41,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:58:42,084 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-10-07 14:58:42,085 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:58:42,085 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:58:42,085 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-07 14:58:42,086 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-07 14:58:42,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-07 14:58:42,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2019-10-07 14:58:42,087 INFO L87 Difference]: Start difference. First operand 1153 states and 1353 transitions. Second operand 11 states. [2019-10-07 14:58:44,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:58:44,748 INFO L93 Difference]: Finished difference Result 1548 states and 1744 transitions. [2019-10-07 14:58:44,748 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-07 14:58:44,749 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 256 [2019-10-07 14:58:44,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:58:44,755 INFO L225 Difference]: With dead ends: 1548 [2019-10-07 14:58:44,756 INFO L226 Difference]: Without dead ends: 1217 [2019-10-07 14:58:44,760 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2019-10-07 14:58:44,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1217 states. [2019-10-07 14:58:44,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1217 to 1017. [2019-10-07 14:58:44,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1017 states. [2019-10-07 14:58:44,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1017 states to 1017 states and 1177 transitions. [2019-10-07 14:58:44,830 INFO L78 Accepts]: Start accepts. Automaton has 1017 states and 1177 transitions. Word has length 256 [2019-10-07 14:58:44,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:58:44,832 INFO L462 AbstractCegarLoop]: Abstraction has 1017 states and 1177 transitions. [2019-10-07 14:58:44,832 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-07 14:58:44,833 INFO L276 IsEmpty]: Start isEmpty. Operand 1017 states and 1177 transitions. [2019-10-07 14:58:44,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2019-10-07 14:58:44,840 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:58:44,840 INFO L385 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:58:44,841 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:58:44,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:58:44,841 INFO L82 PathProgramCache]: Analyzing trace with hash -1225892478, now seen corresponding path program 1 times [2019-10-07 14:58:44,841 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:58:44,842 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:58:44,842 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:58:44,842 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:58:44,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:58:44,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:58:45,966 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 9 proven. 14 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2019-10-07 14:58:45,966 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:58:45,966 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:58:45,966 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 14:58:46,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:58:46,672 INFO L256 TraceCheckSpWp]: Trace formula consists of 3549 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:58:46,708 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:58:46,923 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2019-10-07 14:58:46,923 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:58:48,023 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 21 proven. 2 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2019-10-07 14:58:48,024 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 14:58:48,058 INFO L162 IcfgInterpreter]: Started Sifa with 248 locations of interest [2019-10-07 14:58:48,058 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 14:58:48,067 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 14:58:48,074 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 14:58:48,074 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 14:59:37,404 WARN L191 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 674 [2019-10-07 14:59:41,158 WARN L191 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 316 DAG size of output: 257 [2019-10-07 14:59:41,493 WARN L191 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 716 [2019-10-07 14:59:41,754 WARN L191 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 716 [2019-10-07 14:59:42,009 WARN L191 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 716 [2019-10-07 14:59:42,162 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:59:42,772 WARN L191 SmtUtils]: Spent 608.00 ms on a formula simplification that was a NOOP. DAG size: 1010 [2019-10-07 14:59:43,433 WARN L191 SmtUtils]: Spent 642.00 ms on a formula simplification that was a NOOP. DAG size: 1010 [2019-10-07 14:59:44,051 WARN L191 SmtUtils]: Spent 614.00 ms on a formula simplification that was a NOOP. DAG size: 1010 [2019-10-07 14:59:44,197 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:59:44,757 WARN L191 SmtUtils]: Spent 558.00 ms on a formula simplification that was a NOOP. DAG size: 1010 [2019-10-07 14:59:45,859 WARN L191 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 1012 DAG size of output: 1010 [2019-10-07 14:59:46,466 WARN L191 SmtUtils]: Spent 603.00 ms on a formula simplification that was a NOOP. DAG size: 1010 [2019-10-07 14:59:46,604 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:59:47,234 WARN L191 SmtUtils]: Spent 629.00 ms on a formula simplification that was a NOOP. DAG size: 1010 [2019-10-07 14:59:47,808 WARN L191 SmtUtils]: Spent 571.00 ms on a formula simplification that was a NOOP. DAG size: 1010 [2019-10-07 14:59:48,412 WARN L191 SmtUtils]: Spent 600.00 ms on a formula simplification that was a NOOP. DAG size: 1010 [2019-10-07 14:59:48,526 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:59:49,086 WARN L191 SmtUtils]: Spent 558.00 ms on a formula simplification that was a NOOP. DAG size: 1010 [2019-10-07 14:59:49,108 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 553 for LOIs [2019-10-07 14:59:49,594 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:59:50,057 WARN L191 SmtUtils]: Spent 461.00 ms on a formula simplification that was a NOOP. DAG size: 935 [2019-10-07 14:59:50,059 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1054 for LOIs [2019-10-07 14:59:50,629 WARN L191 SmtUtils]: Spent 569.00 ms on a formula simplification that was a NOOP. DAG size: 1054 [2019-10-07 14:59:51,225 WARN L191 SmtUtils]: Spent 592.00 ms on a formula simplification that was a NOOP. DAG size: 1054 [2019-10-07 14:59:51,421 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 14:59:52,238 WARN L191 SmtUtils]: Spent 815.00 ms on a formula simplification that was a NOOP. DAG size: 1186 [2019-10-07 14:59:52,868 WARN L191 SmtUtils]: Spent 615.00 ms on a formula simplification that was a NOOP. DAG size: 1054 [2019-10-07 14:59:53,433 WARN L191 SmtUtils]: Spent 561.00 ms on a formula simplification that was a NOOP. DAG size: 1054 [2019-10-07 14:59:53,631 WARN L191 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 14:59:54,474 WARN L191 SmtUtils]: Spent 841.00 ms on a formula simplification that was a NOOP. DAG size: 1186 [2019-10-07 14:59:55,063 WARN L191 SmtUtils]: Spent 561.00 ms on a formula simplification that was a NOOP. DAG size: 1054 [2019-10-07 14:59:55,681 WARN L191 SmtUtils]: Spent 614.00 ms on a formula simplification that was a NOOP. DAG size: 1054 [2019-10-07 14:59:55,950 WARN L191 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 14:59:56,765 WARN L191 SmtUtils]: Spent 813.00 ms on a formula simplification that was a NOOP. DAG size: 1186 [2019-10-07 14:59:57,828 WARN L191 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 1188 DAG size of output: 1054 [2019-10-07 14:59:58,388 WARN L191 SmtUtils]: Spent 556.00 ms on a formula simplification that was a NOOP. DAG size: 1054 [2019-10-07 14:59:58,635 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 14:59:59,481 WARN L191 SmtUtils]: Spent 844.00 ms on a formula simplification that was a NOOP. DAG size: 1186 [2019-10-07 15:00:00,057 WARN L191 SmtUtils]: Spent 559.00 ms on a formula simplification that was a NOOP. DAG size: 1054 [2019-10-07 15:00:00,619 WARN L191 SmtUtils]: Spent 557.00 ms on a formula simplification that was a NOOP. DAG size: 1054 [2019-10-07 15:00:00,816 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 15:00:01,646 WARN L191 SmtUtils]: Spent 828.00 ms on a formula simplification that was a NOOP. DAG size: 1186 [2019-10-07 15:00:02,281 WARN L191 SmtUtils]: Spent 632.00 ms on a formula simplification that was a NOOP. DAG size: 1054 [2019-10-07 15:00:02,869 WARN L191 SmtUtils]: Spent 585.00 ms on a formula simplification that was a NOOP. DAG size: 1054 [2019-10-07 15:00:03,065 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 15:00:03,878 WARN L191 SmtUtils]: Spent 811.00 ms on a formula simplification that was a NOOP. DAG size: 1186 [2019-10-07 15:00:04,437 WARN L191 SmtUtils]: Spent 556.00 ms on a formula simplification that was a NOOP. DAG size: 1054 [2019-10-07 15:00:05,001 WARN L191 SmtUtils]: Spent 561.00 ms on a formula simplification that was a NOOP. DAG size: 1054 [2019-10-07 15:00:05,236 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 15:00:06,043 WARN L191 SmtUtils]: Spent 805.00 ms on a formula simplification that was a NOOP. DAG size: 1186 [2019-10-07 15:00:06,627 WARN L191 SmtUtils]: Spent 580.00 ms on a formula simplification that was a NOOP. DAG size: 1054 [2019-10-07 15:00:07,190 WARN L191 SmtUtils]: Spent 560.00 ms on a formula simplification that was a NOOP. DAG size: 1054 [2019-10-07 15:00:07,382 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 15:00:08,199 WARN L191 SmtUtils]: Spent 815.00 ms on a formula simplification that was a NOOP. DAG size: 1186 [2019-10-07 15:00:08,766 WARN L191 SmtUtils]: Spent 564.00 ms on a formula simplification that was a NOOP. DAG size: 1054 [2019-10-07 15:00:09,329 WARN L191 SmtUtils]: Spent 560.00 ms on a formula simplification that was a NOOP. DAG size: 1054 [2019-10-07 15:00:09,521 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 15:00:10,331 WARN L191 SmtUtils]: Spent 808.00 ms on a formula simplification that was a NOOP. DAG size: 1186 [2019-10-07 15:00:10,907 WARN L191 SmtUtils]: Spent 574.00 ms on a formula simplification that was a NOOP. DAG size: 1054 [2019-10-07 15:00:11,468 WARN L191 SmtUtils]: Spent 558.00 ms on a formula simplification that was a NOOP. DAG size: 1054 [2019-10-07 15:00:11,659 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 15:00:12,464 WARN L191 SmtUtils]: Spent 803.00 ms on a formula simplification that was a NOOP. DAG size: 1186 [2019-10-07 15:00:13,033 WARN L191 SmtUtils]: Spent 567.00 ms on a formula simplification that was a NOOP. DAG size: 1054 [2019-10-07 15:00:13,595 WARN L191 SmtUtils]: Spent 558.00 ms on a formula simplification that was a NOOP. DAG size: 1054 [2019-10-07 15:00:13,787 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 15:00:14,597 WARN L191 SmtUtils]: Spent 809.00 ms on a formula simplification that was a NOOP. DAG size: 1186 [2019-10-07 15:00:15,160 WARN L191 SmtUtils]: Spent 560.00 ms on a formula simplification that was a NOOP. DAG size: 1054 [2019-10-07 15:00:15,721 WARN L191 SmtUtils]: Spent 557.00 ms on a formula simplification that was a NOOP. DAG size: 1054 [2019-10-07 15:00:15,911 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 15:00:16,726 WARN L191 SmtUtils]: Spent 812.00 ms on a formula simplification that was a NOOP. DAG size: 1186 [2019-10-07 15:00:17,285 WARN L191 SmtUtils]: Spent 557.00 ms on a formula simplification that was a NOOP. DAG size: 1054 [2019-10-07 15:00:17,854 WARN L191 SmtUtils]: Spent 565.00 ms on a formula simplification that was a NOOP. DAG size: 1054 [2019-10-07 15:00:18,045 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 15:00:18,856 WARN L191 SmtUtils]: Spent 809.00 ms on a formula simplification that was a NOOP. DAG size: 1186 [2019-10-07 15:00:19,726 WARN L191 SmtUtils]: Spent 826.00 ms on a formula simplification that was a NOOP. DAG size: 1186 [2019-10-07 15:00:20,543 WARN L191 SmtUtils]: Spent 814.00 ms on a formula simplification that was a NOOP. DAG size: 1186 [2019-10-07 15:00:20,748 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 15:00:21,557 WARN L191 SmtUtils]: Spent 807.00 ms on a formula simplification that was a NOOP. DAG size: 1186 [2019-10-07 15:00:23,052 WARN L191 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 1188 DAG size of output: 1186 [2019-10-07 15:00:23,864 WARN L191 SmtUtils]: Spent 808.00 ms on a formula simplification that was a NOOP. DAG size: 1186 [2019-10-07 15:00:24,068 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 15:00:24,877 WARN L191 SmtUtils]: Spent 807.00 ms on a formula simplification that was a NOOP. DAG size: 1186 [2019-10-07 15:00:25,686 WARN L191 SmtUtils]: Spent 806.00 ms on a formula simplification that was a NOOP. DAG size: 1186 [2019-10-07 15:00:26,500 WARN L191 SmtUtils]: Spent 810.00 ms on a formula simplification that was a NOOP. DAG size: 1186 [2019-10-07 15:00:26,692 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 15:00:27,498 WARN L191 SmtUtils]: Spent 805.00 ms on a formula simplification that was a NOOP. DAG size: 1186 [2019-10-07 15:00:28,379 WARN L191 SmtUtils]: Spent 844.00 ms on a formula simplification that was a NOOP. DAG size: 1188 [2019-10-07 15:00:29,197 WARN L191 SmtUtils]: Spent 815.00 ms on a formula simplification that was a NOOP. DAG size: 1188 [2019-10-07 15:00:29,397 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 579 [2019-10-07 15:00:30,208 WARN L191 SmtUtils]: Spent 809.00 ms on a formula simplification that was a NOOP. DAG size: 1190 [2019-10-07 15:00:31,686 WARN L191 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 1192 DAG size of output: 1190 [2019-10-07 15:00:32,497 WARN L191 SmtUtils]: Spent 808.00 ms on a formula simplification that was a NOOP. DAG size: 1190 [2019-10-07 15:00:32,701 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 579 [2019-10-07 15:00:33,519 WARN L191 SmtUtils]: Spent 816.00 ms on a formula simplification that was a NOOP. DAG size: 1190 [2019-10-07 15:00:34,986 WARN L191 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 1192 DAG size of output: 1188 [2019-10-07 15:00:35,800 WARN L191 SmtUtils]: Spent 811.00 ms on a formula simplification that was a NOOP. DAG size: 1188 [2019-10-07 15:00:35,993 WARN L191 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 579 [2019-10-07 15:00:36,805 WARN L191 SmtUtils]: Spent 810.00 ms on a formula simplification that was a NOOP. DAG size: 1190 [2019-10-07 15:00:37,623 WARN L191 SmtUtils]: Spent 809.00 ms on a formula simplification that was a NOOP. DAG size: 1195 [2019-10-07 15:00:38,434 WARN L191 SmtUtils]: Spent 808.00 ms on a formula simplification that was a NOOP. DAG size: 1195 [2019-10-07 15:00:38,695 WARN L191 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 579 [2019-10-07 15:00:39,500 WARN L191 SmtUtils]: Spent 802.00 ms on a formula simplification that was a NOOP. DAG size: 1195 [2019-10-07 15:00:40,306 WARN L191 SmtUtils]: Spent 803.00 ms on a formula simplification that was a NOOP. DAG size: 1197 [2019-10-07 15:00:41,113 WARN L191 SmtUtils]: Spent 803.00 ms on a formula simplification that was a NOOP. DAG size: 1197 [2019-10-07 15:00:41,309 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 579 [2019-10-07 15:00:42,112 WARN L191 SmtUtils]: Spent 801.00 ms on a formula simplification that was a NOOP. DAG size: 1197 [2019-10-07 15:00:43,820 WARN L191 SmtUtils]: Spent 1.67 s on a formula simplification. DAG size of input: 1188 DAG size of output: 1186 [2019-10-07 15:00:44,631 WARN L191 SmtUtils]: Spent 807.00 ms on a formula simplification that was a NOOP. DAG size: 1186 [2019-10-07 15:00:44,838 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 15:00:45,646 WARN L191 SmtUtils]: Spent 806.00 ms on a formula simplification that was a NOOP. DAG size: 1186 [2019-10-07 15:00:47,488 WARN L191 SmtUtils]: Spent 1.83 s on a formula simplification. DAG size of input: 1188 DAG size of output: 1186 [2019-10-07 15:00:48,299 WARN L191 SmtUtils]: Spent 807.00 ms on a formula simplification that was a NOOP. DAG size: 1186 [2019-10-07 15:00:48,531 WARN L191 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 15:00:49,341 WARN L191 SmtUtils]: Spent 807.00 ms on a formula simplification that was a NOOP. DAG size: 1186 [2019-10-07 15:00:50,150 WARN L191 SmtUtils]: Spent 806.00 ms on a formula simplification that was a NOOP. DAG size: 1186 [2019-10-07 15:00:50,963 WARN L191 SmtUtils]: Spent 808.00 ms on a formula simplification that was a NOOP. DAG size: 1186 [2019-10-07 15:00:51,155 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 15:00:51,969 WARN L191 SmtUtils]: Spent 813.00 ms on a formula simplification that was a NOOP. DAG size: 1186 [2019-10-07 15:00:53,473 WARN L191 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 1188 DAG size of output: 1186 [2019-10-07 15:00:54,293 WARN L191 SmtUtils]: Spent 817.00 ms on a formula simplification that was a NOOP. DAG size: 1186 [2019-10-07 15:00:54,490 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 15:00:55,313 WARN L191 SmtUtils]: Spent 821.00 ms on a formula simplification that was a NOOP. DAG size: 1186 [2019-10-07 15:00:56,804 WARN L191 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 1188 DAG size of output: 1186 [2019-10-07 15:00:57,622 WARN L191 SmtUtils]: Spent 815.00 ms on a formula simplification that was a NOOP. DAG size: 1186 [2019-10-07 15:00:57,828 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 15:00:58,655 WARN L191 SmtUtils]: Spent 825.00 ms on a formula simplification that was a NOOP. DAG size: 1186 [2019-10-07 15:00:59,478 WARN L191 SmtUtils]: Spent 819.00 ms on a formula simplification that was a NOOP. DAG size: 1186 [2019-10-07 15:01:00,305 WARN L191 SmtUtils]: Spent 823.00 ms on a formula simplification that was a NOOP. DAG size: 1186 [2019-10-07 15:01:00,501 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-07 15:01:01,326 WARN L191 SmtUtils]: Spent 823.00 ms on a formula simplification that was a NOOP. DAG size: 1186 [2019-10-07 15:01:02,777 WARN L191 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 1192 DAG size of output: 1188 [2019-10-07 15:01:03,600 WARN L191 SmtUtils]: Spent 819.00 ms on a formula simplification that was a NOOP. DAG size: 1188 [2019-10-07 15:01:03,815 WARN L191 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 579 [2019-10-07 15:01:04,638 WARN L191 SmtUtils]: Spent 821.00 ms on a formula simplification that was a NOOP. DAG size: 1190 [2019-10-07 15:01:06,214 WARN L191 SmtUtils]: Spent 1.56 s on a formula simplification. DAG size of input: 1192 DAG size of output: 1190 [2019-10-07 15:01:07,041 WARN L191 SmtUtils]: Spent 823.00 ms on a formula simplification that was a NOOP. DAG size: 1190 [2019-10-07 15:01:07,250 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 579 [2019-10-07 15:01:08,077 WARN L191 SmtUtils]: Spent 825.00 ms on a formula simplification that was a NOOP. DAG size: 1190 [2019-10-07 15:01:09,562 WARN L191 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 1192 DAG size of output: 1188 [2019-10-07 15:01:10,381 WARN L191 SmtUtils]: Spent 815.00 ms on a formula simplification that was a NOOP. DAG size: 1188 [2019-10-07 15:01:10,578 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 579 [2019-10-07 15:01:11,394 WARN L191 SmtUtils]: Spent 814.00 ms on a formula simplification that was a NOOP. DAG size: 1190 [2019-10-07 15:01:12,706 WARN L191 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 1197 DAG size of output: 1188 [2019-10-07 15:01:13,535 WARN L191 SmtUtils]: Spent 826.00 ms on a formula simplification that was a NOOP. DAG size: 1188 [2019-10-07 15:01:13,740 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 579 [2019-10-07 15:01:14,567 WARN L191 SmtUtils]: Spent 824.00 ms on a formula simplification that was a NOOP. DAG size: 1190 [2019-10-07 15:01:15,811 WARN L191 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 1199 DAG size of output: 1190 [2019-10-07 15:01:16,639 WARN L191 SmtUtils]: Spent 825.00 ms on a formula simplification that was a NOOP. DAG size: 1190 [2019-10-07 15:01:16,866 WARN L191 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 579 [2019-10-07 15:01:17,677 WARN L191 SmtUtils]: Spent 809.00 ms on a formula simplification that was a NOOP. DAG size: 1192 [2019-10-07 15:01:17,953 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:01:17,954 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 15:01:17,971 INFO L168 Benchmark]: Toolchain (without parser) took 188373.76 ms. Allocated memory was 137.9 MB in the beginning and 569.4 MB in the end (delta: 431.5 MB). Free memory was 100.0 MB in the beginning and 101.4 MB in the end (delta: -1.4 MB). Peak memory consumption was 430.1 MB. Max. memory is 7.1 GB. [2019-10-07 15:01:17,973 INFO L168 Benchmark]: CDTParser took 1.30 ms. Allocated memory is still 137.9 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-10-07 15:01:17,980 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1081.97 ms. Allocated memory was 137.9 MB in the beginning and 202.9 MB in the end (delta: 65.0 MB). Free memory was 99.8 MB in the beginning and 134.9 MB in the end (delta: -35.0 MB). Peak memory consumption was 35.2 MB. Max. memory is 7.1 GB. [2019-10-07 15:01:17,981 INFO L168 Benchmark]: Boogie Preprocessor took 200.70 ms. Allocated memory is still 202.9 MB. Free memory was 134.9 MB in the beginning and 125.7 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. [2019-10-07 15:01:17,982 INFO L168 Benchmark]: RCFGBuilder took 4500.10 ms. Allocated memory was 202.9 MB in the beginning and 300.4 MB in the end (delta: 97.5 MB). Free memory was 125.7 MB in the beginning and 105.7 MB in the end (delta: 20.0 MB). Peak memory consumption was 117.6 MB. Max. memory is 7.1 GB. [2019-10-07 15:01:17,983 INFO L168 Benchmark]: TraceAbstraction took 182581.55 ms. Allocated memory was 300.4 MB in the beginning and 569.4 MB in the end (delta: 269.0 MB). Free memory was 102.5 MB in the beginning and 101.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 270.0 MB. Max. memory is 7.1 GB. [2019-10-07 15:01:17,990 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.30 ms. Allocated memory is still 137.9 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1081.97 ms. Allocated memory was 137.9 MB in the beginning and 202.9 MB in the end (delta: 65.0 MB). Free memory was 99.8 MB in the beginning and 134.9 MB in the end (delta: -35.0 MB). Peak memory consumption was 35.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 200.70 ms. Allocated memory is still 202.9 MB. Free memory was 134.9 MB in the beginning and 125.7 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4500.10 ms. Allocated memory was 202.9 MB in the beginning and 300.4 MB in the end (delta: 97.5 MB). Free memory was 125.7 MB in the beginning and 105.7 MB in the end (delta: 20.0 MB). Peak memory consumption was 117.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 182581.55 ms. Allocated memory was 300.4 MB in the beginning and 569.4 MB in the end (delta: 269.0 MB). Free memory was 102.5 MB in the beginning and 101.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 270.0 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...