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_spec11_product26.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 14:43:07,005 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 14:43:07,007 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 14:43:07,020 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 14:43:07,021 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 14:43:07,022 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 14:43:07,024 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 14:43:07,026 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 14:43:07,027 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 14:43:07,028 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 14:43:07,029 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 14:43:07,030 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 14:43:07,031 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 14:43:07,032 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 14:43:07,033 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 14:43:07,034 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 14:43:07,035 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 14:43:07,036 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 14:43:07,037 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 14:43:07,039 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 14:43:07,041 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 14:43:07,042 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 14:43:07,045 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 14:43:07,046 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 14:43:07,048 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 14:43:07,049 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 14:43:07,049 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 14:43:07,050 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 14:43:07,051 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 14:43:07,051 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 14:43:07,052 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 14:43:07,055 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 14:43:07,056 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 14:43:07,058 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 14:43:07,063 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 14:43:07,063 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 14:43:07,064 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 14:43:07,064 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 14:43:07,064 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 14:43:07,067 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 14:43:07,070 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 14:43:07,071 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 14:43:07,092 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 14:43:07,093 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 14:43:07,094 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 14:43:07,095 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 14:43:07,095 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 14:43:07,095 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 14:43:07,095 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 14:43:07,096 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 14:43:07,096 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 14:43:07,096 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 14:43:07,097 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 14:43:07,097 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 14:43:07,098 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 14:43:07,098 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 14:43:07,098 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 14:43:07,099 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 14:43:07,099 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 14:43:07,099 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 14:43:07,099 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 14:43:07,099 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 14:43:07,100 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 14:43:07,100 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:43:07,100 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 14:43:07,100 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 14:43:07,100 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 14:43:07,101 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 14:43:07,101 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 14:43:07,101 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 14:43:07,101 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 14:43:07,488 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 14:43:07,503 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 14:43:07,507 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 14:43:07,509 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 14:43:07,509 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 14:43:07,510 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec11_product26.cil.c [2019-10-07 14:43:07,577 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abdb98c4f/0c2e0eb9b8ed4deaba1de6c91f80ff11/FLAG9c4d91036 [2019-10-07 14:43:08,180 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 14:43:08,180 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec11_product26.cil.c [2019-10-07 14:43:08,225 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abdb98c4f/0c2e0eb9b8ed4deaba1de6c91f80ff11/FLAG9c4d91036 [2019-10-07 14:43:08,437 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abdb98c4f/0c2e0eb9b8ed4deaba1de6c91f80ff11 [2019-10-07 14:43:08,450 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 14:43:08,452 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 14:43:08,453 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 14:43:08,453 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 14:43:08,457 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 14:43:08,458 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:43:08" (1/1) ... [2019-10-07 14:43:08,461 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a5d2151 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:43:08, skipping insertion in model container [2019-10-07 14:43:08,461 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:43:08" (1/1) ... [2019-10-07 14:43:08,469 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 14:43:08,564 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 14:43:09,363 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:43:09,387 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 14:43:09,562 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:43:09,674 INFO L192 MainTranslator]: Completed translation [2019-10-07 14:43:09,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:43:09 WrapperNode [2019-10-07 14:43:09,675 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 14:43:09,676 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 14:43:09,676 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 14:43:09,676 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 14:43:09,691 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:43:09" (1/1) ... [2019-10-07 14:43:09,692 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:43:09" (1/1) ... [2019-10-07 14:43:09,744 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:43:09" (1/1) ... [2019-10-07 14:43:09,744 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:43:09" (1/1) ... [2019-10-07 14:43:09,810 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:43:09" (1/1) ... [2019-10-07 14:43:09,835 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:43:09" (1/1) ... [2019-10-07 14:43:09,849 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:43:09" (1/1) ... [2019-10-07 14:43:09,893 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 14:43:09,893 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 14:43:09,893 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 14:43:09,894 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 14:43:09,895 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:43:09" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:43:09,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 14:43:09,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 14:43:09,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 14:43:09,974 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-07 14:43:09,974 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-07 14:43:09,974 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-07 14:43:09,975 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-07 14:43:09,975 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-07 14:43:09,975 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-07 14:43:09,975 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-07 14:43:09,975 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-07 14:43:09,976 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-07 14:43:09,976 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-07 14:43:09,976 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-07 14:43:09,976 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-07 14:43:09,977 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-07 14:43:09,977 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-07 14:43:09,977 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-07 14:43:09,977 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-07 14:43:09,978 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-07 14:43:09,978 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-07 14:43:09,979 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-07 14:43:09,979 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-07 14:43:09,979 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-07 14:43:09,979 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-07 14:43:09,979 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-07 14:43:09,980 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-07 14:43:09,980 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-07 14:43:09,980 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-07 14:43:09,980 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-07 14:43:09,980 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 14:43:09,980 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 14:43:09,981 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 14:43:09,981 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 14:43:09,981 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptAutoResponder_spec__1 [2019-10-07 14:43:09,981 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-07 14:43:09,981 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-07 14:43:09,982 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-07 14:43:09,982 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-07 14:43:09,982 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-07 14:43:09,982 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-07 14:43:09,982 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-07 14:43:09,983 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-07 14:43:09,983 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 14:43:09,983 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 14:43:09,983 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-07 14:43:09,983 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-07 14:43:09,983 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-07 14:43:09,984 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-07 14:43:09,984 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-07 14:43:09,984 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-07 14:43:09,984 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-07 14:43:09,984 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-07 14:43:09,985 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-07 14:43:09,985 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-07 14:43:09,985 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-07 14:43:09,985 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-07 14:43:09,985 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 14:43:09,986 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 14:43:09,986 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 14:43:09,986 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 14:43:09,986 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 14:43:09,986 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 14:43:09,986 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 14:43:09,987 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-07 14:43:09,987 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-07 14:43:09,987 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-07 14:43:09,987 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-07 14:43:09,987 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-07 14:43:09,987 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-07 14:43:09,988 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-07 14:43:09,988 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-07 14:43:09,988 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-07 14:43:09,988 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-07 14:43:09,988 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-07 14:43:09,988 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-07 14:43:09,988 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-07 14:43:09,989 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-07 14:43:09,989 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-07 14:43:09,989 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-07 14:43:09,989 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-07 14:43:09,989 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-07 14:43:09,989 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-07 14:43:09,990 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-07 14:43:09,990 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-07 14:43:09,990 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-07 14:43:09,990 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-07 14:43:09,990 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-07 14:43:09,990 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-07 14:43:09,991 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-07 14:43:09,991 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-07 14:43:09,991 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-07 14:43:09,991 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-07 14:43:09,991 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-07 14:43:09,991 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-07 14:43:09,991 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-07 14:43:09,992 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-07 14:43:09,992 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-07 14:43:09,992 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-07 14:43:09,992 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AddressBook [2019-10-07 14:43:09,992 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-07 14:43:09,992 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-07 14:43:09,992 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-07 14:43:09,993 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-07 14:43:09,993 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-07 14:43:09,993 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-07 14:43:09,993 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-07 14:43:09,993 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-07 14:43:09,993 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-07 14:43:09,994 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-07 14:43:09,994 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-07 14:43:09,994 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-07 14:43:09,994 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-07 14:43:09,994 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 14:43:09,994 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-07 14:43:09,994 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 14:43:09,995 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 14:43:09,995 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-07 14:43:09,995 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-07 14:43:09,995 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-07 14:43:09,995 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-07 14:43:09,995 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-07 14:43:09,996 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-07 14:43:09,996 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-07 14:43:09,996 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-07 14:43:09,996 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-07 14:43:09,996 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-07 14:43:09,996 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-07 14:43:09,996 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-07 14:43:09,997 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-07 14:43:09,997 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-07 14:43:09,997 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-07 14:43:09,997 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-07 14:43:09,997 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-07 14:43:09,997 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-07 14:43:09,997 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-07 14:43:09,998 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-07 14:43:09,998 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-07 14:43:09,998 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 14:43:09,998 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-07 14:43:09,998 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-07 14:43:09,998 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-07 14:43:09,998 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-07 14:43:09,999 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-07 14:43:09,999 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 14:43:09,999 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-07 14:43:09,999 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 14:43:09,999 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 14:43:09,999 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 14:43:10,000 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 14:43:10,000 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 14:43:10,000 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-07 14:43:10,000 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptAutoResponder_spec__1 [2019-10-07 14:43:10,000 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-07 14:43:10,000 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-07 14:43:10,001 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-07 14:43:10,001 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-07 14:43:10,001 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-07 14:43:10,001 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-07 14:43:10,001 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-07 14:43:10,001 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-07 14:43:10,001 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-07 14:43:10,002 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-07 14:43:10,002 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-07 14:43:10,002 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-07 14:43:10,002 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-07 14:43:10,002 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-07 14:43:10,002 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-07 14:43:10,003 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-07 14:43:10,003 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-07 14:43:10,003 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-07 14:43:10,003 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-07 14:43:10,003 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-07 14:43:10,003 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-07 14:43:10,003 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-07 14:43:10,004 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-07 14:43:10,004 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 14:43:10,004 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 14:43:10,004 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 14:43:10,004 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-07 14:43:10,004 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-07 14:43:10,004 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-07 14:43:10,005 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-07 14:43:10,005 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-07 14:43:10,005 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-07 14:43:10,005 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-07 14:43:10,005 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-07 14:43:10,005 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-07 14:43:10,006 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-07 14:43:10,006 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-07 14:43:10,006 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-07 14:43:10,006 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-07 14:43:10,006 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-07 14:43:10,006 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-07 14:43:10,006 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 14:43:10,006 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 14:43:10,007 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 14:43:10,007 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 14:43:10,007 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 14:43:10,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 14:43:10,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 14:43:10,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 14:43:10,007 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 14:43:10,008 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 14:43:10,008 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 14:43:10,008 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 14:43:10,008 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 14:43:10,008 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 14:43:10,008 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 14:43:10,008 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 14:43:10,009 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-07 14:43:10,009 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-07 14:43:10,009 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-07 14:43:10,009 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-07 14:43:10,009 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-07 14:43:10,009 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-07 14:43:10,009 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-07 14:43:10,010 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-07 14:43:10,010 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-07 14:43:10,010 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-07 14:43:10,010 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-07 14:43:10,010 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-07 14:43:10,010 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-07 14:43:10,010 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-07 14:43:10,011 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-07 14:43:10,011 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-07 14:43:10,011 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-07 14:43:10,011 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-07 14:43:10,011 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-07 14:43:10,011 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-07 14:43:10,011 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-07 14:43:10,012 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-07 14:43:10,012 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-07 14:43:10,012 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-07 14:43:10,012 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-07 14:43:10,012 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-07 14:43:10,012 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-07 14:43:10,012 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-07 14:43:10,013 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-07 14:43:10,013 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AddressBook [2019-10-07 14:43:10,013 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-07 14:43:10,013 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-07 14:43:10,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 14:43:10,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 14:43:10,014 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 14:43:14,955 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 14:43:14,955 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-07 14:43:14,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:43:14 BoogieIcfgContainer [2019-10-07 14:43:14,957 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 14:43:14,958 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 14:43:14,958 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 14:43:14,961 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 14:43:14,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 02:43:08" (1/3) ... [2019-10-07 14:43:14,963 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17d67eac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:43:14, skipping insertion in model container [2019-10-07 14:43:14,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:43:09" (2/3) ... [2019-10-07 14:43:14,963 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17d67eac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:43:14, skipping insertion in model container [2019-10-07 14:43:14,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:43:14" (3/3) ... [2019-10-07 14:43:14,965 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec11_product26.cil.c [2019-10-07 14:43:14,975 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 14:43:14,984 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 14:43:14,998 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 14:43:15,027 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 14:43:15,028 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 14:43:15,028 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 14:43:15,028 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 14:43:15,028 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 14:43:15,028 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 14:43:15,029 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 14:43:15,029 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 14:43:15,056 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states. [2019-10-07 14:43:15,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2019-10-07 14:43:15,075 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:43:15,077 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:43:15,079 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:43:15,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:43:15,085 INFO L82 PathProgramCache]: Analyzing trace with hash -689159261, now seen corresponding path program 1 times [2019-10-07 14:43:15,095 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:43:15,095 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:43:15,095 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:43:15,095 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:43:15,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:43:15,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:43:15,766 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 14:43:15,767 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:43:15,769 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:43:15,770 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 14:43:15,777 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 14:43:15,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 14:43:15,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 14:43:15,795 INFO L87 Difference]: Start difference. First operand 414 states. Second operand 2 states. [2019-10-07 14:43:15,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:43:15,886 INFO L93 Difference]: Finished difference Result 603 states and 720 transitions. [2019-10-07 14:43:15,886 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 14:43:15,888 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 155 [2019-10-07 14:43:15,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:43:15,908 INFO L225 Difference]: With dead ends: 603 [2019-10-07 14:43:15,908 INFO L226 Difference]: Without dead ends: 387 [2019-10-07 14:43:15,915 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 14:43:15,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2019-10-07 14:43:15,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 387. [2019-10-07 14:43:15,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 387 states. [2019-10-07 14:43:15,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 456 transitions. [2019-10-07 14:43:16,001 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 456 transitions. Word has length 155 [2019-10-07 14:43:16,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:43:16,003 INFO L462 AbstractCegarLoop]: Abstraction has 387 states and 456 transitions. [2019-10-07 14:43:16,003 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 14:43:16,003 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 456 transitions. [2019-10-07 14:43:16,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2019-10-07 14:43:16,015 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:43:16,015 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:43:16,018 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:43:16,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:43:16,019 INFO L82 PathProgramCache]: Analyzing trace with hash -1252193339, now seen corresponding path program 1 times [2019-10-07 14:43:16,019 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:43:16,019 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:43:16,020 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:43:16,020 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:43:16,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:43:16,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:43:16,330 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 14:43:16,331 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:43:16,331 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:43:16,331 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:43:16,340 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:43:16,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:43:16,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:43:16,341 INFO L87 Difference]: Start difference. First operand 387 states and 456 transitions. Second operand 3 states. [2019-10-07 14:43:16,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:43:16,414 INFO L93 Difference]: Finished difference Result 588 states and 685 transitions. [2019-10-07 14:43:16,415 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:43:16,415 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 156 [2019-10-07 14:43:16,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:43:16,420 INFO L225 Difference]: With dead ends: 588 [2019-10-07 14:43:16,420 INFO L226 Difference]: Without dead ends: 389 [2019-10-07 14:43:16,424 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 14:43:16,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2019-10-07 14:43:16,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 389. [2019-10-07 14:43:16,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 389 states. [2019-10-07 14:43:16,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 458 transitions. [2019-10-07 14:43:16,567 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 458 transitions. Word has length 156 [2019-10-07 14:43:16,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:43:16,568 INFO L462 AbstractCegarLoop]: Abstraction has 389 states and 458 transitions. [2019-10-07 14:43:16,568 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:43:16,571 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 458 transitions. [2019-10-07 14:43:16,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2019-10-07 14:43:16,576 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:43:16,578 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, 1, 1, 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 14:43:16,578 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:43:16,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:43:16,579 INFO L82 PathProgramCache]: Analyzing trace with hash -140687942, now seen corresponding path program 1 times [2019-10-07 14:43:16,580 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:43:16,581 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:43:16,581 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:43:16,581 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:43:16,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:43:16,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:43:16,942 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 14:43:16,942 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:43:16,943 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:43:16,943 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:43:16,946 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:43:16,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:43:16,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:43:16,947 INFO L87 Difference]: Start difference. First operand 389 states and 458 transitions. Second operand 3 states. [2019-10-07 14:43:16,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:43:16,999 INFO L93 Difference]: Finished difference Result 764 states and 929 transitions. [2019-10-07 14:43:17,000 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:43:17,000 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 168 [2019-10-07 14:43:17,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:43:17,006 INFO L225 Difference]: With dead ends: 764 [2019-10-07 14:43:17,006 INFO L226 Difference]: Without dead ends: 433 [2019-10-07 14:43:17,008 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 14:43:17,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2019-10-07 14:43:17,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 432. [2019-10-07 14:43:17,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 432 states. [2019-10-07 14:43:17,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 532 transitions. [2019-10-07 14:43:17,050 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 532 transitions. Word has length 168 [2019-10-07 14:43:17,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:43:17,051 INFO L462 AbstractCegarLoop]: Abstraction has 432 states and 532 transitions. [2019-10-07 14:43:17,051 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:43:17,051 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 532 transitions. [2019-10-07 14:43:17,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2019-10-07 14:43:17,058 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:43:17,059 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, 1, 1, 1, 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 14:43:17,059 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:43:17,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:43:17,059 INFO L82 PathProgramCache]: Analyzing trace with hash 1930129255, now seen corresponding path program 1 times [2019-10-07 14:43:17,060 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:43:17,060 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:43:17,060 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:43:17,062 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:43:17,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:43:17,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:43:18,120 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 14:43:18,121 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:43:18,121 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:43:18,121 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2019-10-07 14:43:18,123 INFO L442 AbstractCegarLoop]: Interpolant automaton has 30 states [2019-10-07 14:43:18,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2019-10-07 14:43:18,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=793, Unknown=0, NotChecked=0, Total=870 [2019-10-07 14:43:18,127 INFO L87 Difference]: Start difference. First operand 432 states and 532 transitions. Second operand 30 states. [2019-10-07 14:43:27,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:43:27,748 INFO L93 Difference]: Finished difference Result 900 states and 1112 transitions. [2019-10-07 14:43:27,751 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2019-10-07 14:43:27,751 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 169 [2019-10-07 14:43:27,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:43:27,759 INFO L225 Difference]: With dead ends: 900 [2019-10-07 14:43:27,759 INFO L226 Difference]: Without dead ends: 711 [2019-10-07 14:43:27,761 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 319 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=181, Invalid=2171, Unknown=0, NotChecked=0, Total=2352 [2019-10-07 14:43:27,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2019-10-07 14:43:27,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 699. [2019-10-07 14:43:27,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 699 states. [2019-10-07 14:43:27,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 866 transitions. [2019-10-07 14:43:27,802 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 866 transitions. Word has length 169 [2019-10-07 14:43:27,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:43:27,803 INFO L462 AbstractCegarLoop]: Abstraction has 699 states and 866 transitions. [2019-10-07 14:43:27,803 INFO L463 AbstractCegarLoop]: Interpolant automaton has 30 states. [2019-10-07 14:43:27,803 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 866 transitions. [2019-10-07 14:43:27,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2019-10-07 14:43:27,807 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:43:27,807 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, 1, 1, 1, 1, 1, 1, 1, 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 14:43:27,808 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:43:27,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:43:27,808 INFO L82 PathProgramCache]: Analyzing trace with hash 455119866, now seen corresponding path program 1 times [2019-10-07 14:43:27,808 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:43:27,809 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:43:27,809 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:43:27,809 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:43:27,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:43:27,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:43:28,057 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 14:43:28,058 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:43:28,058 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:43:28,058 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-07 14:43:28,059 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-07 14:43:28,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-07 14:43:28,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-07 14:43:28,060 INFO L87 Difference]: Start difference. First operand 699 states and 866 transitions. Second operand 10 states. [2019-10-07 14:43:28,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:43:28,132 INFO L93 Difference]: Finished difference Result 708 states and 877 transitions. [2019-10-07 14:43:28,133 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-07 14:43:28,133 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 173 [2019-10-07 14:43:28,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:43:28,140 INFO L225 Difference]: With dead ends: 708 [2019-10-07 14:43:28,140 INFO L226 Difference]: Without dead ends: 705 [2019-10-07 14:43:28,142 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 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 14:43:28,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 705 states. [2019-10-07 14:43:28,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 705 to 705. [2019-10-07 14:43:28,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 705 states. [2019-10-07 14:43:28,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 705 states and 872 transitions. [2019-10-07 14:43:28,199 INFO L78 Accepts]: Start accepts. Automaton has 705 states and 872 transitions. Word has length 173 [2019-10-07 14:43:28,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:43:28,201 INFO L462 AbstractCegarLoop]: Abstraction has 705 states and 872 transitions. [2019-10-07 14:43:28,201 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-07 14:43:28,201 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states and 872 transitions. [2019-10-07 14:43:28,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2019-10-07 14:43:28,204 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:43:28,205 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:43:28,205 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:43:28,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:43:28,206 INFO L82 PathProgramCache]: Analyzing trace with hash -936288293, now seen corresponding path program 1 times [2019-10-07 14:43:28,206 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:43:28,206 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:43:28,206 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:43:28,206 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:43:28,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:43:28,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:43:28,626 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 14:43:28,629 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:43:28,629 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:43:28,629 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2019-10-07 14:43:28,630 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-07 14:43:28,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-07 14:43:28,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2019-10-07 14:43:28,631 INFO L87 Difference]: Start difference. First operand 705 states and 872 transitions. Second operand 14 states. [2019-10-07 14:43:31,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:43:31,935 INFO L93 Difference]: Finished difference Result 1502 states and 1847 transitions. [2019-10-07 14:43:31,936 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-07 14:43:31,936 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 175 [2019-10-07 14:43:31,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:43:31,945 INFO L225 Difference]: With dead ends: 1502 [2019-10-07 14:43:31,946 INFO L226 Difference]: Without dead ends: 1306 [2019-10-07 14:43:31,947 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=119, Invalid=531, Unknown=0, NotChecked=0, Total=650 [2019-10-07 14:43:31,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1306 states. [2019-10-07 14:43:32,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1306 to 1260. [2019-10-07 14:43:32,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1260 states. [2019-10-07 14:43:32,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1260 states to 1260 states and 1550 transitions. [2019-10-07 14:43:32,083 INFO L78 Accepts]: Start accepts. Automaton has 1260 states and 1550 transitions. Word has length 175 [2019-10-07 14:43:32,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:43:32,083 INFO L462 AbstractCegarLoop]: Abstraction has 1260 states and 1550 transitions. [2019-10-07 14:43:32,084 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-07 14:43:32,084 INFO L276 IsEmpty]: Start isEmpty. Operand 1260 states and 1550 transitions. [2019-10-07 14:43:32,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2019-10-07 14:43:32,088 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:43:32,088 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:43:32,089 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:43:32,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:43:32,089 INFO L82 PathProgramCache]: Analyzing trace with hash 1372468373, now seen corresponding path program 1 times [2019-10-07 14:43:32,089 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:43:32,090 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:43:32,090 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:43:32,090 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:43:32,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:43:32,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:43:32,249 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 14:43:32,250 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:43:32,250 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:43:32,250 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:43:32,251 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:43:32,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:43:32,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:43:32,252 INFO L87 Difference]: Start difference. First operand 1260 states and 1550 transitions. Second operand 3 states. [2019-10-07 14:43:32,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:43:32,322 INFO L93 Difference]: Finished difference Result 2580 states and 3242 transitions. [2019-10-07 14:43:32,322 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:43:32,326 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 190 [2019-10-07 14:43:32,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:43:32,336 INFO L225 Difference]: With dead ends: 2580 [2019-10-07 14:43:32,336 INFO L226 Difference]: Without dead ends: 1378 [2019-10-07 14:43:32,340 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 14:43:32,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1378 states. [2019-10-07 14:43:32,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1378 to 1376. [2019-10-07 14:43:32,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1376 states. [2019-10-07 14:43:32,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1376 states to 1376 states and 1750 transitions. [2019-10-07 14:43:32,419 INFO L78 Accepts]: Start accepts. Automaton has 1376 states and 1750 transitions. Word has length 190 [2019-10-07 14:43:32,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:43:32,421 INFO L462 AbstractCegarLoop]: Abstraction has 1376 states and 1750 transitions. [2019-10-07 14:43:32,421 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:43:32,422 INFO L276 IsEmpty]: Start isEmpty. Operand 1376 states and 1750 transitions. [2019-10-07 14:43:32,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2019-10-07 14:43:32,427 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:43:32,428 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:43:32,428 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:43:32,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:43:32,429 INFO L82 PathProgramCache]: Analyzing trace with hash 1285722424, now seen corresponding path program 1 times [2019-10-07 14:43:32,429 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:43:32,429 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:43:32,429 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:43:32,429 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:43:32,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:43:32,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:43:32,921 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-07 14:43:32,921 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:43:32,921 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:43:32,922 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 14:43:33,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:43:33,563 INFO L256 TraceCheckSpWp]: Trace formula consists of 2904 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:43:33,587 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:43:33,713 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 14:43:33,714 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:43:33,967 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 14:43:33,968 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 14:43:34,001 INFO L162 IcfgInterpreter]: Started Sifa with 174 locations of interest [2019-10-07 14:43:34,002 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 14:43:34,009 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 14:43:34,017 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 14:43:34,018 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 14:44:34,488 WARN L191 SmtUtils]: Spent 488.00 ms on a formula simplification that was a NOOP. DAG size: 675 [2019-10-07 14:44:38,589 WARN L191 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 311 DAG size of output: 253 [2019-10-07 14:44:38,927 WARN L191 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 717 [2019-10-07 14:44:39,195 WARN L191 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 717 [2019-10-07 14:44:39,502 WARN L191 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 717 [2019-10-07 14:44:39,680 WARN L191 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:44:40,369 WARN L191 SmtUtils]: Spent 687.00 ms on a formula simplification that was a NOOP. DAG size: 1011 [2019-10-07 14:44:41,044 WARN L191 SmtUtils]: Spent 657.00 ms on a formula simplification that was a NOOP. DAG size: 1011 [2019-10-07 14:44:41,667 WARN L191 SmtUtils]: Spent 619.00 ms on a formula simplification that was a NOOP. DAG size: 1011 [2019-10-07 14:44:41,858 WARN L191 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:44:42,480 WARN L191 SmtUtils]: Spent 617.00 ms on a formula simplification that was a NOOP. DAG size: 1011 [2019-10-07 14:44:43,813 WARN L191 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 1013 DAG size of output: 1011 [2019-10-07 14:44:44,452 WARN L191 SmtUtils]: Spent 635.00 ms on a formula simplification that was a NOOP. DAG size: 1011 [2019-10-07 14:44:44,678 WARN L191 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:44:45,368 WARN L191 SmtUtils]: Spent 688.00 ms on a formula simplification that was a NOOP. DAG size: 1011 [2019-10-07 14:44:45,986 WARN L191 SmtUtils]: Spent 616.00 ms on a formula simplification that was a NOOP. DAG size: 1011 [2019-10-07 14:44:46,621 WARN L191 SmtUtils]: Spent 630.00 ms on a formula simplification that was a NOOP. DAG size: 1011 [2019-10-07 14:44:46,743 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:44:47,377 WARN L191 SmtUtils]: Spent 632.00 ms on a formula simplification that was a NOOP. DAG size: 1011 [2019-10-07 14:44:47,407 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 553 for LOIs [2019-10-07 14:44:47,737 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 642 [2019-10-07 14:44:47,841 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 642 [2019-10-07 14:44:47,965 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:44:48,439 WARN L191 SmtUtils]: Spent 472.00 ms on a formula simplification that was a NOOP. DAG size: 936 [2019-10-07 14:44:48,442 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1067 for LOIs [2019-10-07 14:44:49,053 WARN L191 SmtUtils]: Spent 610.00 ms on a formula simplification that was a NOOP. DAG size: 1067 [2019-10-07 14:44:49,653 WARN L191 SmtUtils]: Spent 597.00 ms on a formula simplification that was a NOOP. DAG size: 1067 [2019-10-07 14:44:50,098 WARN L191 SmtUtils]: Spent 436.00 ms on a formula simplification that was a NOOP. DAG size: 630 [2019-10-07 14:44:51,104 WARN L191 SmtUtils]: Spent 1.00 s on a formula simplification that was a NOOP. DAG size: 1259 [2019-10-07 14:44:51,766 WARN L191 SmtUtils]: Spent 647.00 ms on a formula simplification that was a NOOP. DAG size: 1067 [2019-10-07 14:44:52,374 WARN L191 SmtUtils]: Spent 604.00 ms on a formula simplification that was a NOOP. DAG size: 1067 [2019-10-07 14:44:52,627 WARN L191 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 630 [2019-10-07 14:44:53,644 WARN L191 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 1259 [2019-10-07 14:44:54,320 WARN L191 SmtUtils]: Spent 646.00 ms on a formula simplification that was a NOOP. DAG size: 1067 [2019-10-07 14:44:54,926 WARN L191 SmtUtils]: Spent 602.00 ms on a formula simplification that was a NOOP. DAG size: 1067 [2019-10-07 14:44:55,180 WARN L191 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 630 [2019-10-07 14:44:56,196 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 1259 [2019-10-07 14:44:57,147 WARN L191 SmtUtils]: Spent 923.00 ms on a formula simplification. DAG size of input: 1261 DAG size of output: 1067 [2019-10-07 14:44:57,771 WARN L191 SmtUtils]: Spent 621.00 ms on a formula simplification that was a NOOP. DAG size: 1067 [2019-10-07 14:44:58,079 WARN L191 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 630 [2019-10-07 14:44:59,052 WARN L191 SmtUtils]: Spent 971.00 ms on a formula simplification that was a NOOP. DAG size: 1259 [2019-10-07 14:44:59,647 WARN L191 SmtUtils]: Spent 580.00 ms on a formula simplification that was a NOOP. DAG size: 1067 [2019-10-07 14:45:00,237 WARN L191 SmtUtils]: Spent 587.00 ms on a formula simplification that was a NOOP. DAG size: 1067 [2019-10-07 14:45:00,478 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 630 [2019-10-07 14:45:01,539 WARN L191 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 1259 [2019-10-07 14:45:02,127 WARN L191 SmtUtils]: Spent 585.00 ms on a formula simplification that was a NOOP. DAG size: 1067 [2019-10-07 14:45:02,721 WARN L191 SmtUtils]: Spent 590.00 ms on a formula simplification that was a NOOP. DAG size: 1067 [2019-10-07 14:45:02,970 WARN L191 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 630 [2019-10-07 14:45:03,941 WARN L191 SmtUtils]: Spent 969.00 ms on a formula simplification that was a NOOP. DAG size: 1259 [2019-10-07 14:45:04,539 WARN L191 SmtUtils]: Spent 596.00 ms on a formula simplification that was a NOOP. DAG size: 1067 [2019-10-07 14:45:05,127 WARN L191 SmtUtils]: Spent 584.00 ms on a formula simplification that was a NOOP. DAG size: 1067 [2019-10-07 14:45:05,369 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 630 [2019-10-07 14:45:06,354 WARN L191 SmtUtils]: Spent 983.00 ms on a formula simplification that was a NOOP. DAG size: 1259 [2019-10-07 14:45:06,943 WARN L191 SmtUtils]: Spent 585.00 ms on a formula simplification that was a NOOP. DAG size: 1067 [2019-10-07 14:45:07,527 WARN L191 SmtUtils]: Spent 581.00 ms on a formula simplification that was a NOOP. DAG size: 1067 [2019-10-07 14:45:07,781 WARN L191 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 630 [2019-10-07 14:45:08,761 WARN L191 SmtUtils]: Spent 976.00 ms on a formula simplification that was a NOOP. DAG size: 1259 [2019-10-07 14:45:09,350 WARN L191 SmtUtils]: Spent 585.00 ms on a formula simplification that was a NOOP. DAG size: 1067 [2019-10-07 14:45:09,941 WARN L191 SmtUtils]: Spent 587.00 ms on a formula simplification that was a NOOP. DAG size: 1067 [2019-10-07 14:45:10,183 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 630 [2019-10-07 14:45:11,172 WARN L191 SmtUtils]: Spent 987.00 ms on a formula simplification that was a NOOP. DAG size: 1259 [2019-10-07 14:45:11,768 WARN L191 SmtUtils]: Spent 594.00 ms on a formula simplification that was a NOOP. DAG size: 1067 [2019-10-07 14:45:12,365 WARN L191 SmtUtils]: Spent 593.00 ms on a formula simplification that was a NOOP. DAG size: 1067 [2019-10-07 14:45:12,606 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 630 [2019-10-07 14:45:13,578 WARN L191 SmtUtils]: Spent 970.00 ms on a formula simplification that was a NOOP. DAG size: 1259 [2019-10-07 14:45:14,175 WARN L191 SmtUtils]: Spent 593.00 ms on a formula simplification that was a NOOP. DAG size: 1067 [2019-10-07 14:45:14,779 WARN L191 SmtUtils]: Spent 600.00 ms on a formula simplification that was a NOOP. DAG size: 1067 [2019-10-07 14:45:15,035 WARN L191 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 630 [2019-10-07 14:45:16,029 WARN L191 SmtUtils]: Spent 992.00 ms on a formula simplification that was a NOOP. DAG size: 1259 [2019-10-07 14:45:16,632 WARN L191 SmtUtils]: Spent 600.00 ms on a formula simplification that was a NOOP. DAG size: 1067 [2019-10-07 14:45:17,228 WARN L191 SmtUtils]: Spent 593.00 ms on a formula simplification that was a NOOP. DAG size: 1067 [2019-10-07 14:45:17,474 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 630 [2019-10-07 14:45:18,469 WARN L191 SmtUtils]: Spent 993.00 ms on a formula simplification that was a NOOP. DAG size: 1259 [2019-10-07 14:45:19,069 WARN L191 SmtUtils]: Spent 597.00 ms on a formula simplification that was a NOOP. DAG size: 1067 [2019-10-07 14:45:19,663 WARN L191 SmtUtils]: Spent 591.00 ms on a formula simplification that was a NOOP. DAG size: 1067 [2019-10-07 14:45:19,908 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 630 [2019-10-07 14:45:20,903 WARN L191 SmtUtils]: Spent 993.00 ms on a formula simplification that was a NOOP. DAG size: 1259 [2019-10-07 14:45:21,960 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 1259 [2019-10-07 14:45:22,947 WARN L191 SmtUtils]: Spent 982.00 ms on a formula simplification that was a NOOP. DAG size: 1259 [2019-10-07 14:45:23,208 WARN L191 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 630 [2019-10-07 14:45:24,200 WARN L191 SmtUtils]: Spent 989.00 ms on a formula simplification that was a NOOP. DAG size: 1259 [2019-10-07 14:45:26,012 WARN L191 SmtUtils]: Spent 1.80 s on a formula simplification. DAG size of input: 1261 DAG size of output: 1259 [2019-10-07 14:45:27,011 WARN L191 SmtUtils]: Spent 995.00 ms on a formula simplification that was a NOOP. DAG size: 1259 [2019-10-07 14:45:27,268 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 630 [2019-10-07 14:45:28,254 WARN L191 SmtUtils]: Spent 984.00 ms on a formula simplification that was a NOOP. DAG size: 1259 [2019-10-07 14:45:29,241 WARN L191 SmtUtils]: Spent 983.00 ms on a formula simplification that was a NOOP. DAG size: 1259 [2019-10-07 14:45:30,238 WARN L191 SmtUtils]: Spent 993.00 ms on a formula simplification that was a NOOP. DAG size: 1259 [2019-10-07 14:45:30,485 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 630 [2019-10-07 14:45:31,481 WARN L191 SmtUtils]: Spent 994.00 ms on a formula simplification that was a NOOP. DAG size: 1259 [2019-10-07 14:45:32,543 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 1263 [2019-10-07 14:45:33,541 WARN L191 SmtUtils]: Spent 995.00 ms on a formula simplification that was a NOOP. DAG size: 1263 [2019-10-07 14:45:33,790 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 633 [2019-10-07 14:45:34,784 WARN L191 SmtUtils]: Spent 992.00 ms on a formula simplification that was a NOOP. DAG size: 1263 [2019-10-07 14:45:35,807 WARN L191 SmtUtils]: Spent 1.00 s on a formula simplification that was a NOOP. DAG size: 1263 [2019-10-07 14:45:36,821 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 1263 [2019-10-07 14:45:37,080 WARN L191 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 633 [2019-10-07 14:45:38,091 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 1263 [2019-10-07 14:45:39,106 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 1263 [2019-10-07 14:45:40,110 WARN L191 SmtUtils]: Spent 1.00 s on a formula simplification that was a NOOP. DAG size: 1263 [2019-10-07 14:45:40,364 WARN L191 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 633 [2019-10-07 14:45:41,370 WARN L191 SmtUtils]: Spent 1.00 s on a formula simplification that was a NOOP. DAG size: 1263 [2019-10-07 14:45:42,394 WARN L191 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 1268 [2019-10-07 14:45:43,403 WARN L191 SmtUtils]: Spent 1.00 s on a formula simplification that was a NOOP. DAG size: 1268 [2019-10-07 14:45:43,677 WARN L191 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 633 [2019-10-07 14:45:44,676 WARN L191 SmtUtils]: Spent 997.00 ms on a formula simplification that was a NOOP. DAG size: 1268 [2019-10-07 14:45:45,684 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 1270 [2019-10-07 14:45:46,685 WARN L191 SmtUtils]: Spent 997.00 ms on a formula simplification that was a NOOP. DAG size: 1270 [2019-10-07 14:45:46,952 WARN L191 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 633 [2019-10-07 14:45:47,956 WARN L191 SmtUtils]: Spent 1.00 s on a formula simplification that was a NOOP. DAG size: 1270 [2019-10-07 14:45:50,518 WARN L191 SmtUtils]: Spent 2.51 s on a formula simplification. DAG size of input: 1261 DAG size of output: 1259 [2019-10-07 14:45:51,503 WARN L191 SmtUtils]: Spent 980.00 ms on a formula simplification that was a NOOP. DAG size: 1259 [2019-10-07 14:45:51,789 WARN L191 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 630 [2019-10-07 14:45:52,788 WARN L191 SmtUtils]: Spent 997.00 ms on a formula simplification that was a NOOP. DAG size: 1259 [2019-10-07 14:45:54,589 WARN L191 SmtUtils]: Spent 1.79 s on a formula simplification. DAG size of input: 1261 DAG size of output: 1259 [2019-10-07 14:45:55,583 WARN L191 SmtUtils]: Spent 990.00 ms on a formula simplification that was a NOOP. DAG size: 1259 [2019-10-07 14:45:55,895 WARN L191 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 630 [2019-10-07 14:45:56,881 WARN L191 SmtUtils]: Spent 984.00 ms on a formula simplification that was a NOOP. DAG size: 1259 [2019-10-07 14:45:57,877 WARN L191 SmtUtils]: Spent 992.00 ms on a formula simplification that was a NOOP. DAG size: 1259 [2019-10-07 14:45:58,859 WARN L191 SmtUtils]: Spent 978.00 ms on a formula simplification that was a NOOP. DAG size: 1259 [2019-10-07 14:45:59,105 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 630 [2019-10-07 14:46:00,092 WARN L191 SmtUtils]: Spent 985.00 ms on a formula simplification that was a NOOP. DAG size: 1259 [2019-10-07 14:46:02,920 WARN L191 SmtUtils]: Spent 2.78 s on a formula simplification. DAG size of input: 1261 DAG size of output: 1259 [2019-10-07 14:46:03,914 WARN L191 SmtUtils]: Spent 989.00 ms on a formula simplification that was a NOOP. DAG size: 1259 [2019-10-07 14:46:04,170 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 630 [2019-10-07 14:46:05,165 WARN L191 SmtUtils]: Spent 993.00 ms on a formula simplification that was a NOOP. DAG size: 1259 [2019-10-07 14:46:06,969 WARN L191 SmtUtils]: Spent 1.79 s on a formula simplification. DAG size of input: 1261 DAG size of output: 1259 [2019-10-07 14:46:07,962 WARN L191 SmtUtils]: Spent 989.00 ms on a formula simplification that was a NOOP. DAG size: 1259 [2019-10-07 14:46:08,218 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 630 [2019-10-07 14:46:09,200 WARN L191 SmtUtils]: Spent 980.00 ms on a formula simplification that was a NOOP. DAG size: 1259 [2019-10-07 14:46:10,189 WARN L191 SmtUtils]: Spent 984.00 ms on a formula simplification that was a NOOP. DAG size: 1259 [2019-10-07 14:46:11,181 WARN L191 SmtUtils]: Spent 987.00 ms on a formula simplification that was a NOOP. DAG size: 1259 [2019-10-07 14:46:11,424 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 630 [2019-10-07 14:46:12,419 WARN L191 SmtUtils]: Spent 993.00 ms on a formula simplification that was a NOOP. DAG size: 1259 [2019-10-07 14:46:14,143 WARN L191 SmtUtils]: Spent 1.69 s on a formula simplification. DAG size of input: 1265 DAG size of output: 1261 [2019-10-07 14:46:15,150 WARN L191 SmtUtils]: Spent 1.00 s on a formula simplification that was a NOOP. DAG size: 1261 [2019-10-07 14:46:15,410 WARN L191 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 633 [2019-10-07 14:46:16,417 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 1263 [2019-10-07 14:46:17,439 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 1263 [2019-10-07 14:46:18,443 WARN L191 SmtUtils]: Spent 1000.00 ms on a formula simplification that was a NOOP. DAG size: 1263 [2019-10-07 14:46:18,698 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 633 [2019-10-07 14:46:19,692 WARN L191 SmtUtils]: Spent 992.00 ms on a formula simplification that was a NOOP. DAG size: 1263 [2019-10-07 14:46:21,385 WARN L191 SmtUtils]: Spent 1.69 s on a formula simplification. DAG size of input: 1265 DAG size of output: 1261 [2019-10-07 14:46:22,394 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 1261 [2019-10-07 14:46:22,655 WARN L191 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 633 [2019-10-07 14:46:23,666 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 1263 [2019-10-07 14:46:25,378 WARN L191 SmtUtils]: Spent 1.70 s on a formula simplification. DAG size of input: 1270 DAG size of output: 1261 [2019-10-07 14:46:26,394 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 1261 [2019-10-07 14:46:26,651 WARN L191 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 633 [2019-10-07 14:46:27,657 WARN L191 SmtUtils]: Spent 1.00 s on a formula simplification that was a NOOP. DAG size: 1263 [2019-10-07 14:46:29,365 WARN L191 SmtUtils]: Spent 1.70 s on a formula simplification. DAG size of input: 1272 DAG size of output: 1263 [2019-10-07 14:46:30,350 WARN L191 SmtUtils]: Spent 981.00 ms on a formula simplification that was a NOOP. DAG size: 1263 [2019-10-07 14:46:30,793 WARN L191 SmtUtils]: Spent 419.00 ms on a formula simplification that was a NOOP. DAG size: 633 [2019-10-07 14:46:31,798 WARN L191 SmtUtils]: Spent 1.00 s on a formula simplification that was a NOOP. DAG size: 1265 [2019-10-07 14:46:32,058 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:46:32,059 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:133) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.lib.sifa.PriorityWorklist.add(PriorityWorklist.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.lambda$2(DagInterpreter.java:135) at java.lang.Iterable.forEach(Iterable.java:75) at java.util.Collections$UnmodifiableCollection.forEach(Collections.java:1080) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:135) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:139) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:287) ... 21 more [2019-10-07 14:46:32,065 INFO L168 Benchmark]: Toolchain (without parser) took 203613.67 ms. Allocated memory was 139.5 MB in the beginning and 909.6 MB in the end (delta: 770.2 MB). Free memory was 101.2 MB in the beginning and 779.6 MB in the end (delta: -678.4 MB). Peak memory consumption was 91.8 MB. Max. memory is 7.1 GB. [2019-10-07 14:46:32,066 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 139.5 MB. Free memory was 122.7 MB in the beginning and 122.5 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-10-07 14:46:32,067 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1223.00 ms. Allocated memory was 139.5 MB in the beginning and 202.9 MB in the end (delta: 63.4 MB). Free memory was 101.0 MB in the beginning and 136.2 MB in the end (delta: -35.2 MB). Peak memory consumption was 33.5 MB. Max. memory is 7.1 GB. [2019-10-07 14:46:32,067 INFO L168 Benchmark]: Boogie Preprocessor took 216.91 ms. Allocated memory is still 202.9 MB. Free memory was 136.2 MB in the beginning and 127.2 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 7.1 GB. [2019-10-07 14:46:32,068 INFO L168 Benchmark]: RCFGBuilder took 5063.76 ms. Allocated memory was 202.9 MB in the beginning and 294.6 MB in the end (delta: 91.8 MB). Free memory was 127.2 MB in the beginning and 245.7 MB in the end (delta: -118.5 MB). Peak memory consumption was 141.4 MB. Max. memory is 7.1 GB. [2019-10-07 14:46:32,069 INFO L168 Benchmark]: TraceAbstraction took 197105.52 ms. Allocated memory was 294.6 MB in the beginning and 909.6 MB in the end (delta: 615.0 MB). Free memory was 242.6 MB in the beginning and 779.6 MB in the end (delta: -536.9 MB). Peak memory consumption was 78.0 MB. Max. memory is 7.1 GB. [2019-10-07 14:46:32,072 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 139.5 MB. Free memory was 122.7 MB in the beginning and 122.5 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1223.00 ms. Allocated memory was 139.5 MB in the beginning and 202.9 MB in the end (delta: 63.4 MB). Free memory was 101.0 MB in the beginning and 136.2 MB in the end (delta: -35.2 MB). Peak memory consumption was 33.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 216.91 ms. Allocated memory is still 202.9 MB. Free memory was 136.2 MB in the beginning and 127.2 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5063.76 ms. Allocated memory was 202.9 MB in the beginning and 294.6 MB in the end (delta: 91.8 MB). Free memory was 127.2 MB in the beginning and 245.7 MB in the end (delta: -118.5 MB). Peak memory consumption was 141.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 197105.52 ms. Allocated memory was 294.6 MB in the beginning and 909.6 MB in the end (delta: 615.0 MB). Free memory was 242.6 MB in the beginning and 779.6 MB in the end (delta: -536.9 MB). Peak memory consumption was 78.0 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...