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_spec6_product34.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 15:03:04,937 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 15:03:04,939 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 15:03:04,952 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 15:03:04,952 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 15:03:04,953 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 15:03:04,954 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 15:03:04,956 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 15:03:04,958 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 15:03:04,958 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 15:03:04,959 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 15:03:04,960 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 15:03:04,961 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 15:03:04,962 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 15:03:04,963 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 15:03:04,964 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 15:03:04,964 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 15:03:04,965 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 15:03:04,967 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 15:03:04,969 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 15:03:04,970 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 15:03:04,971 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 15:03:04,972 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 15:03:04,973 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 15:03:04,975 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 15:03:04,975 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 15:03:04,975 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 15:03:04,976 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 15:03:04,976 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 15:03:04,977 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 15:03:04,977 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 15:03:04,980 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 15:03:04,981 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 15:03:04,981 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 15:03:04,982 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 15:03:04,982 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 15:03:04,985 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 15:03:04,985 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 15:03:04,986 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 15:03:04,987 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 15:03:04,987 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 15:03:04,988 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 15:03:05,009 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 15:03:05,010 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 15:03:05,012 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 15:03:05,012 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 15:03:05,012 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 15:03:05,012 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 15:03:05,013 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 15:03:05,013 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 15:03:05,013 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 15:03:05,013 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 15:03:05,014 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 15:03:05,014 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 15:03:05,014 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 15:03:05,015 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 15:03:05,015 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 15:03:05,015 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 15:03:05,015 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 15:03:05,016 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 15:03:05,016 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 15:03:05,016 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 15:03:05,016 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 15:03:05,017 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 15:03:05,017 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 15:03:05,017 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 15:03:05,017 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 15:03:05,017 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 15:03:05,017 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 15:03:05,018 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 15:03:05,018 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 15:03:05,325 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 15:03:05,346 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 15:03:05,349 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 15:03:05,351 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 15:03:05,351 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 15:03:05,352 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec6_product34.cil.c [2019-10-07 15:03:05,419 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa9ad333e/5da2a4a27f4c44df81368eb8a51ce62a/FLAGd1d5da084 [2019-10-07 15:03:05,994 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 15:03:05,997 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec6_product34.cil.c [2019-10-07 15:03:06,024 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa9ad333e/5da2a4a27f4c44df81368eb8a51ce62a/FLAGd1d5da084 [2019-10-07 15:03:06,382 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa9ad333e/5da2a4a27f4c44df81368eb8a51ce62a [2019-10-07 15:03:06,392 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 15:03:06,394 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 15:03:06,395 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 15:03:06,396 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 15:03:06,399 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 15:03:06,400 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:03:06" (1/1) ... [2019-10-07 15:03:06,402 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54e12d7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:03:06, skipping insertion in model container [2019-10-07 15:03:06,403 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:03:06" (1/1) ... [2019-10-07 15:03:06,410 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 15:03:06,486 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 15:03:07,252 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:03:07,277 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 15:03:07,400 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:03:07,511 INFO L192 MainTranslator]: Completed translation [2019-10-07 15:03:07,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:03:07 WrapperNode [2019-10-07 15:03:07,512 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 15:03:07,514 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 15:03:07,514 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 15:03:07,514 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 15:03:07,530 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:03:07" (1/1) ... [2019-10-07 15:03:07,536 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:03:07" (1/1) ... [2019-10-07 15:03:07,603 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:03:07" (1/1) ... [2019-10-07 15:03:07,606 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:03:07" (1/1) ... [2019-10-07 15:03:07,664 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:03:07" (1/1) ... [2019-10-07 15:03:07,688 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:03:07" (1/1) ... [2019-10-07 15:03:07,702 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:03:07" (1/1) ... [2019-10-07 15:03:07,725 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 15:03:07,725 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 15:03:07,725 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 15:03:07,726 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 15:03:07,732 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:03:07" (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 15:03:07,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 15:03:07,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 15:03:07,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 15:03:07,807 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 15:03:07,807 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 15:03:07,808 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 15:03:07,808 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 15:03:07,808 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-07 15:03:07,808 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-07 15:03:07,809 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-07 15:03:07,809 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-07 15:03:07,809 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-07 15:03:07,809 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-07 15:03:07,809 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-07 15:03:07,809 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-07 15:03:07,810 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-07 15:03:07,810 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-07 15:03:07,810 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-07 15:03:07,810 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-07 15:03:07,810 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-07 15:03:07,811 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-07 15:03:07,811 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-07 15:03:07,811 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-07 15:03:07,811 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-07 15:03:07,812 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-07 15:03:07,812 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-07 15:03:07,812 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-07 15:03:07,812 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-07 15:03:07,812 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-07 15:03:07,812 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-07 15:03:07,812 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-07 15:03:07,813 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-07 15:03:07,813 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 15:03:07,813 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 15:03:07,813 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 15:03:07,813 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 15:03:07,813 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 15:03:07,813 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 15:03:07,814 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 15:03:07,814 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-07 15:03:07,814 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-07 15:03:07,814 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-07 15:03:07,814 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-07 15:03:07,814 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-07 15:03:07,814 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-07 15:03:07,815 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-07 15:03:07,815 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-07 15:03:07,815 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-07 15:03:07,815 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-07 15:03:07,815 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-07 15:03:07,815 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-07 15:03:07,816 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-07 15:03:07,816 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-07 15:03:07,816 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-07 15:03:07,816 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-07 15:03:07,816 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-07 15:03:07,816 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-07 15:03:07,816 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-07 15:03:07,817 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-07 15:03:07,817 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-07 15:03:07,817 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-07 15:03:07,817 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-07 15:03:07,817 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-07 15:03:07,817 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-07 15:03:07,818 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-07 15:03:07,818 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-07 15:03:07,818 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-07 15:03:07,818 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-07 15:03:07,818 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-07 15:03:07,818 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-07 15:03:07,819 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-07 15:03:07,819 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-07 15:03:07,819 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-07 15:03:07,819 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-07 15:03:07,819 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-07 15:03:07,819 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-07 15:03:07,821 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-07 15:03:07,821 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-07 15:03:07,821 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-07 15:03:07,821 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-07 15:03:07,822 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-07 15:03:07,823 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-07 15:03:07,823 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-07 15:03:07,823 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-07 15:03:07,823 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-07 15:03:07,823 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-07 15:03:07,823 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-07 15:03:07,824 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-07 15:03:07,824 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-07 15:03:07,825 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-07 15:03:07,825 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-07 15:03:07,825 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-07 15:03:07,825 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-07 15:03:07,825 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-07 15:03:07,825 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-07 15:03:07,825 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-07 15:03:07,826 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-07 15:03:07,826 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-07 15:03:07,826 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-07 15:03:07,826 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-07 15:03:07,826 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-07 15:03:07,826 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-07 15:03:07,826 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-07 15:03:07,826 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-07 15:03:07,827 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-07 15:03:07,827 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 15:03:07,827 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 15:03:07,827 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-07 15:03:07,827 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-07 15:03:07,827 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-07 15:03:07,827 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-07 15:03:07,828 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-07 15:03:07,828 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-07 15:03:07,828 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-07 15:03:07,828 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-07 15:03:07,829 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-07 15:03:07,829 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-07 15:03:07,829 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-07 15:03:07,829 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 15:03:07,829 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 15:03:07,830 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 15:03:07,830 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 15:03:07,830 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 15:03:07,830 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 15:03:07,832 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 15:03:07,832 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 15:03:07,832 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-07 15:03:07,832 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-07 15:03:07,832 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-07 15:03:07,832 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-07 15:03:07,832 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 15:03:07,833 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-07 15:03:07,833 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-07 15:03:07,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 15:03:07,837 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-07 15:03:07,838 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-07 15:03:07,838 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-07 15:03:07,838 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-07 15:03:07,838 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-07 15:03:07,838 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-07 15:03:07,839 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-07 15:03:07,839 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-07 15:03:07,840 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-07 15:03:07,840 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-07 15:03:07,847 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-07 15:03:07,848 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-07 15:03:07,848 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-07 15:03:07,848 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-07 15:03:07,848 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-07 15:03:07,848 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-07 15:03:07,848 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-07 15:03:07,849 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-07 15:03:07,849 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-07 15:03:07,849 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-07 15:03:07,849 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-07 15:03:07,850 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-07 15:03:07,850 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-07 15:03:07,850 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-07 15:03:07,851 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-07 15:03:07,851 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-07 15:03:07,851 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-07 15:03:07,851 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-07 15:03:07,851 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-07 15:03:07,851 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-07 15:03:07,852 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-07 15:03:07,852 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-07 15:03:07,852 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-07 15:03:07,852 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-07 15:03:07,852 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-07 15:03:07,852 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-07 15:03:07,852 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-07 15:03:07,853 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-07 15:03:07,853 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-07 15:03:07,853 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-07 15:03:07,853 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-07 15:03:07,853 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-07 15:03:07,853 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-07 15:03:07,854 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-07 15:03:07,854 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 15:03:07,854 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 15:03:07,854 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 15:03:07,854 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 15:03:07,854 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 15:03:07,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 15:03:07,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 15:03:07,855 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 15:03:07,855 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 15:03:07,855 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 15:03:07,855 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 15:03:07,856 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 15:03:07,856 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 15:03:07,856 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 15:03:07,856 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 15:03:07,856 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 15:03:07,856 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-07 15:03:07,857 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-07 15:03:07,857 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-07 15:03:07,857 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-07 15:03:07,857 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-07 15:03:07,857 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-07 15:03:07,857 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-07 15:03:07,857 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-07 15:03:07,858 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-07 15:03:07,858 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-07 15:03:07,858 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-07 15:03:07,858 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-07 15:03:07,858 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-07 15:03:07,858 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-07 15:03:07,860 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-07 15:03:07,860 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-07 15:03:07,861 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-07 15:03:07,861 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-07 15:03:07,861 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-07 15:03:07,861 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-07 15:03:07,861 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-07 15:03:07,861 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-07 15:03:07,861 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-07 15:03:07,862 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-07 15:03:07,862 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-07 15:03:07,862 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-07 15:03:07,862 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-07 15:03:07,862 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-07 15:03:07,862 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-07 15:03:07,863 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-07 15:03:07,863 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-07 15:03:07,863 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-07 15:03:07,863 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-07 15:03:07,863 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-07 15:03:07,863 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-07 15:03:07,864 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-07 15:03:07,864 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-07 15:03:07,864 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-07 15:03:07,864 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-07 15:03:07,864 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 15:03:07,864 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 15:03:07,864 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 15:03:07,865 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-07 15:03:07,865 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-07 15:03:07,865 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-07 15:03:07,865 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-07 15:03:07,865 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-07 15:03:07,865 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-07 15:03:07,865 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-07 15:03:07,866 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-07 15:03:07,866 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-07 15:03:07,866 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-07 15:03:07,866 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-07 15:03:07,866 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-07 15:03:07,866 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-07 15:03:07,867 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-07 15:03:07,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 15:03:07,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 15:03:07,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 15:03:12,350 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 15:03:12,350 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-07 15:03:12,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:03:12 BoogieIcfgContainer [2019-10-07 15:03:12,352 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 15:03:12,353 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 15:03:12,353 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 15:03:12,356 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 15:03:12,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 03:03:06" (1/3) ... [2019-10-07 15:03:12,357 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7702100d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:03:12, skipping insertion in model container [2019-10-07 15:03:12,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:03:07" (2/3) ... [2019-10-07 15:03:12,358 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7702100d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:03:12, skipping insertion in model container [2019-10-07 15:03:12,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:03:12" (3/3) ... [2019-10-07 15:03:12,359 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec6_product34.cil.c [2019-10-07 15:03:12,368 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 15:03:12,377 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 15:03:12,388 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 15:03:12,415 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 15:03:12,416 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 15:03:12,416 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 15:03:12,416 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 15:03:12,416 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 15:03:12,416 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 15:03:12,416 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 15:03:12,417 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 15:03:12,445 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states. [2019-10-07 15:03:12,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2019-10-07 15:03:12,463 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:03:12,464 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] [2019-10-07 15:03:12,466 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:03:12,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:03:12,472 INFO L82 PathProgramCache]: Analyzing trace with hash 165088858, now seen corresponding path program 1 times [2019-10-07 15:03:12,480 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:03:12,480 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:03:12,480 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:03:12,481 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:03:12,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:03:12,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:03:13,216 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 15:03:13,216 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:03:13,217 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:03:13,217 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 15:03:13,222 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 15:03:13,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 15:03:13,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 15:03:13,239 INFO L87 Difference]: Start difference. First operand 462 states. Second operand 2 states. [2019-10-07 15:03:13,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:03:13,327 INFO L93 Difference]: Finished difference Result 706 states and 845 transitions. [2019-10-07 15:03:13,327 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 15:03:13,329 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 154 [2019-10-07 15:03:13,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:03:13,349 INFO L225 Difference]: With dead ends: 706 [2019-10-07 15:03:13,349 INFO L226 Difference]: Without dead ends: 435 [2019-10-07 15:03:13,355 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 15:03:13,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2019-10-07 15:03:13,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 435. [2019-10-07 15:03:13,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 435 states. [2019-10-07 15:03:13,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 516 transitions. [2019-10-07 15:03:13,448 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 516 transitions. Word has length 154 [2019-10-07 15:03:13,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:03:13,450 INFO L462 AbstractCegarLoop]: Abstraction has 435 states and 516 transitions. [2019-10-07 15:03:13,450 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 15:03:13,450 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 516 transitions. [2019-10-07 15:03:13,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2019-10-07 15:03:13,464 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:03:13,464 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] [2019-10-07 15:03:13,465 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:03:13,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:03:13,466 INFO L82 PathProgramCache]: Analyzing trace with hash 2013150457, now seen corresponding path program 1 times [2019-10-07 15:03:13,467 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:03:13,467 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:03:13,467 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:03:13,467 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:03:13,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:03:13,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:03:13,726 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 15:03:13,726 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:03:13,727 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:03:13,727 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:03:13,729 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:03:13,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:03:13,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:03:13,730 INFO L87 Difference]: Start difference. First operand 435 states and 516 transitions. Second operand 3 states. [2019-10-07 15:03:13,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:03:13,805 INFO L93 Difference]: Finished difference Result 691 states and 812 transitions. [2019-10-07 15:03:13,805 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:03:13,806 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 155 [2019-10-07 15:03:13,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:03:13,812 INFO L225 Difference]: With dead ends: 691 [2019-10-07 15:03:13,812 INFO L226 Difference]: Without dead ends: 437 [2019-10-07 15:03:13,814 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:03:13,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2019-10-07 15:03:13,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 437. [2019-10-07 15:03:13,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 437 states. [2019-10-07 15:03:13,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 518 transitions. [2019-10-07 15:03:13,864 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 518 transitions. Word has length 155 [2019-10-07 15:03:13,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:03:13,865 INFO L462 AbstractCegarLoop]: Abstraction has 437 states and 518 transitions. [2019-10-07 15:03:13,865 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:03:13,865 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 518 transitions. [2019-10-07 15:03:13,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2019-10-07 15:03:13,870 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:03:13,870 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] [2019-10-07 15:03:13,871 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:03:13,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:03:13,871 INFO L82 PathProgramCache]: Analyzing trace with hash -1244038619, now seen corresponding path program 1 times [2019-10-07 15:03:13,871 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:03:13,872 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:03:13,872 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:03:13,872 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:03:13,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:03:13,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:03:14,189 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 15:03:14,190 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:03:14,190 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:03:14,190 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:03:14,193 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:03:14,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:03:14,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:03:14,194 INFO L87 Difference]: Start difference. First operand 437 states and 518 transitions. Second operand 3 states. [2019-10-07 15:03:14,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:03:14,254 INFO L93 Difference]: Finished difference Result 858 states and 1046 transitions. [2019-10-07 15:03:14,254 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:03:14,255 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 160 [2019-10-07 15:03:14,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:03:14,258 INFO L225 Difference]: With dead ends: 858 [2019-10-07 15:03:14,259 INFO L226 Difference]: Without dead ends: 479 [2019-10-07 15:03:14,262 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 15:03:14,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2019-10-07 15:03:14,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 478. [2019-10-07 15:03:14,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 478 states. [2019-10-07 15:03:14,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 589 transitions. [2019-10-07 15:03:14,297 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 589 transitions. Word has length 160 [2019-10-07 15:03:14,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:03:14,297 INFO L462 AbstractCegarLoop]: Abstraction has 478 states and 589 transitions. [2019-10-07 15:03:14,298 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:03:14,298 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 589 transitions. [2019-10-07 15:03:14,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2019-10-07 15:03:14,301 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:03:14,301 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] [2019-10-07 15:03:14,301 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:03:14,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:03:14,302 INFO L82 PathProgramCache]: Analyzing trace with hash 719617438, now seen corresponding path program 1 times [2019-10-07 15:03:14,302 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:03:14,302 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:03:14,302 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:03:14,303 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:03:14,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:03:14,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:03:15,084 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 15:03:15,084 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:03:15,084 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:03:15,084 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2019-10-07 15:03:15,086 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-10-07 15:03:15,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-10-07 15:03:15,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=584, Unknown=0, NotChecked=0, Total=650 [2019-10-07 15:03:15,087 INFO L87 Difference]: Start difference. First operand 478 states and 589 transitions. Second operand 26 states. [2019-10-07 15:03:25,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:03:25,308 INFO L93 Difference]: Finished difference Result 1410 states and 1733 transitions. [2019-10-07 15:03:25,309 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2019-10-07 15:03:25,309 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 161 [2019-10-07 15:03:25,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:03:25,319 INFO L225 Difference]: With dead ends: 1410 [2019-10-07 15:03:25,319 INFO L226 Difference]: Without dead ends: 1160 [2019-10-07 15:03:25,324 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 620 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=294, Invalid=2898, Unknown=0, NotChecked=0, Total=3192 [2019-10-07 15:03:25,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1160 states. [2019-10-07 15:03:25,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1160 to 1147. [2019-10-07 15:03:25,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1147 states. [2019-10-07 15:03:25,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1147 states to 1147 states and 1391 transitions. [2019-10-07 15:03:25,406 INFO L78 Accepts]: Start accepts. Automaton has 1147 states and 1391 transitions. Word has length 161 [2019-10-07 15:03:25,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:03:25,407 INFO L462 AbstractCegarLoop]: Abstraction has 1147 states and 1391 transitions. [2019-10-07 15:03:25,407 INFO L463 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-10-07 15:03:25,407 INFO L276 IsEmpty]: Start isEmpty. Operand 1147 states and 1391 transitions. [2019-10-07 15:03:25,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2019-10-07 15:03:25,411 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:03:25,412 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] [2019-10-07 15:03:25,412 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:03:25,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:03:25,412 INFO L82 PathProgramCache]: Analyzing trace with hash 1940424473, now seen corresponding path program 1 times [2019-10-07 15:03:25,413 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:03:25,413 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:03:25,413 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:03:25,413 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:03:25,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:03:25,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:03:26,177 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-07 15:03:26,178 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:03:26,178 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 15:03:26,178 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 15:03:26,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:03:26,916 INFO L256 TraceCheckSpWp]: Trace formula consists of 3073 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 15:03:26,935 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 15:03:27,058 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 15:03:27,059 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 15:03:27,314 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 15:03:27,315 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 15:03:27,356 INFO L162 IcfgInterpreter]: Started Sifa with 152 locations of interest [2019-10-07 15:03:27,356 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 15:03:27,369 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 15:03:27,387 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 15:03:27,388 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 15:04:47,724 WARN L191 SmtUtils]: Spent 466.00 ms on a formula simplification that was a NOOP. DAG size: 733 [2019-10-07 15:04:52,947 WARN L191 SmtUtils]: Spent 1.90 s on a formula simplification. DAG size of input: 388 DAG size of output: 315 [2019-10-07 15:04:53,436 WARN L191 SmtUtils]: Spent 478.00 ms on a formula simplification that was a NOOP. DAG size: 790 [2019-10-07 15:04:53,948 WARN L191 SmtUtils]: Spent 506.00 ms on a formula simplification that was a NOOP. DAG size: 790 [2019-10-07 15:04:54,270 WARN L191 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 790 [2019-10-07 15:04:54,443 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 463 [2019-10-07 15:04:55,167 WARN L191 SmtUtils]: Spent 722.00 ms on a formula simplification that was a NOOP. DAG size: 1097 [2019-10-07 15:04:55,963 WARN L191 SmtUtils]: Spent 775.00 ms on a formula simplification that was a NOOP. DAG size: 1097 [2019-10-07 15:04:56,721 WARN L191 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 1097 [2019-10-07 15:04:56,856 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 463 [2019-10-07 15:04:57,616 WARN L191 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 1097 [2019-10-07 15:04:58,966 WARN L191 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 1099 DAG size of output: 1097 [2019-10-07 15:04:59,669 WARN L191 SmtUtils]: Spent 700.00 ms on a formula simplification that was a NOOP. DAG size: 1097 [2019-10-07 15:04:59,814 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 463 [2019-10-07 15:05:00,537 WARN L191 SmtUtils]: Spent 721.00 ms on a formula simplification that was a NOOP. DAG size: 1097 [2019-10-07 15:05:01,202 WARN L191 SmtUtils]: Spent 662.00 ms on a formula simplification that was a NOOP. DAG size: 1097 [2019-10-07 15:05:01,898 WARN L191 SmtUtils]: Spent 692.00 ms on a formula simplification that was a NOOP. DAG size: 1097 [2019-10-07 15:05:02,022 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 463 [2019-10-07 15:05:02,678 WARN L191 SmtUtils]: Spent 654.00 ms on a formula simplification that was a NOOP. DAG size: 1097 [2019-10-07 15:05:02,715 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 586 for LOIs [2019-10-07 15:05:03,117 WARN L191 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 695 [2019-10-07 15:05:03,266 WARN L191 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 695 [2019-10-07 15:05:03,392 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 463 [2019-10-07 15:05:03,871 WARN L191 SmtUtils]: Spent 477.00 ms on a formula simplification that was a NOOP. DAG size: 1002 [2019-10-07 15:05:03,872 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1158 for LOIs [2019-10-07 15:05:04,553 WARN L191 SmtUtils]: Spent 679.00 ms on a formula simplification that was a NOOP. DAG size: 1158 [2019-10-07 15:05:05,199 WARN L191 SmtUtils]: Spent 642.00 ms on a formula simplification that was a NOOP. DAG size: 1158 [2019-10-07 15:05:05,462 WARN L191 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 662 [2019-10-07 15:05:06,577 WARN L191 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 1361 [2019-10-07 15:05:07,244 WARN L191 SmtUtils]: Spent 650.00 ms on a formula simplification that was a NOOP. DAG size: 1158 [2019-10-07 15:05:08,269 WARN L191 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 1158 [2019-10-07 15:05:08,531 WARN L191 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 662 [2019-10-07 15:05:09,626 WARN L191 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 1361 [2019-10-07 15:05:10,388 WARN L191 SmtUtils]: Spent 729.00 ms on a formula simplification that was a NOOP. DAG size: 1158 [2019-10-07 15:05:11,044 WARN L191 SmtUtils]: Spent 652.00 ms on a formula simplification that was a NOOP. DAG size: 1158 [2019-10-07 15:05:11,332 WARN L191 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 662 [2019-10-07 15:05:12,394 WARN L191 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 1361 [2019-10-07 15:05:13,505 WARN L191 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 1363 DAG size of output: 1158 [2019-10-07 15:05:14,167 WARN L191 SmtUtils]: Spent 658.00 ms on a formula simplification that was a NOOP. DAG size: 1158 [2019-10-07 15:05:14,469 WARN L191 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 662 [2019-10-07 15:05:15,546 WARN L191 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 1361 [2019-10-07 15:05:16,246 WARN L191 SmtUtils]: Spent 683.00 ms on a formula simplification that was a NOOP. DAG size: 1158 [2019-10-07 15:05:16,923 WARN L191 SmtUtils]: Spent 674.00 ms on a formula simplification that was a NOOP. DAG size: 1158 [2019-10-07 15:05:17,199 WARN L191 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 662 [2019-10-07 15:05:18,276 WARN L191 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 1361 [2019-10-07 15:05:18,927 WARN L191 SmtUtils]: Spent 647.00 ms on a formula simplification that was a NOOP. DAG size: 1158 [2019-10-07 15:05:19,583 WARN L191 SmtUtils]: Spent 653.00 ms on a formula simplification that was a NOOP. DAG size: 1158 [2019-10-07 15:05:19,856 WARN L191 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 662 [2019-10-07 15:05:20,950 WARN L191 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 1361 [2019-10-07 15:05:21,604 WARN L191 SmtUtils]: Spent 651.00 ms on a formula simplification that was a NOOP. DAG size: 1158 [2019-10-07 15:05:22,264 WARN L191 SmtUtils]: Spent 657.00 ms on a formula simplification that was a NOOP. DAG size: 1158 [2019-10-07 15:05:22,521 WARN L191 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 662 [2019-10-07 15:05:23,591 WARN L191 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 1361 [2019-10-07 15:05:24,263 WARN L191 SmtUtils]: Spent 668.00 ms on a formula simplification that was a NOOP. DAG size: 1158 [2019-10-07 15:05:24,923 WARN L191 SmtUtils]: Spent 656.00 ms on a formula simplification that was a NOOP. DAG size: 1158 [2019-10-07 15:05:25,179 WARN L191 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 662 [2019-10-07 15:05:26,260 WARN L191 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 1361 [2019-10-07 15:05:26,915 WARN L191 SmtUtils]: Spent 652.00 ms on a formula simplification that was a NOOP. DAG size: 1158 [2019-10-07 15:05:27,568 WARN L191 SmtUtils]: Spent 650.00 ms on a formula simplification that was a NOOP. DAG size: 1158 [2019-10-07 15:05:27,825 WARN L191 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 662 [2019-10-07 15:05:28,911 WARN L191 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 1361 [2019-10-07 15:05:29,567 WARN L191 SmtUtils]: Spent 653.00 ms on a formula simplification that was a NOOP. DAG size: 1158 [2019-10-07 15:05:30,228 WARN L191 SmtUtils]: Spent 658.00 ms on a formula simplification that was a NOOP. DAG size: 1158 [2019-10-07 15:05:30,489 WARN L191 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 662 [2019-10-07 15:05:31,561 WARN L191 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 1361 [2019-10-07 15:05:32,215 WARN L191 SmtUtils]: Spent 651.00 ms on a formula simplification that was a NOOP. DAG size: 1158 [2019-10-07 15:05:32,883 WARN L191 SmtUtils]: Spent 664.00 ms on a formula simplification that was a NOOP. DAG size: 1158 [2019-10-07 15:05:33,138 WARN L191 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 662 [2019-10-07 15:05:34,208 WARN L191 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 1361 [2019-10-07 15:05:34,864 WARN L191 SmtUtils]: Spent 653.00 ms on a formula simplification that was a NOOP. DAG size: 1158 [2019-10-07 15:05:35,527 WARN L191 SmtUtils]: Spent 660.00 ms on a formula simplification that was a NOOP. DAG size: 1158 [2019-10-07 15:05:35,787 WARN L191 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 662 [2019-10-07 15:05:36,874 WARN L191 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 1361 [2019-10-07 15:05:37,531 WARN L191 SmtUtils]: Spent 654.00 ms on a formula simplification that was a NOOP. DAG size: 1158 [2019-10-07 15:05:38,188 WARN L191 SmtUtils]: Spent 653.00 ms on a formula simplification that was a NOOP. DAG size: 1158 [2019-10-07 15:05:38,447 WARN L191 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 662 [2019-10-07 15:05:39,524 WARN L191 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 1361 [2019-10-07 15:05:40,654 WARN L191 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 1361 [2019-10-07 15:05:41,745 WARN L191 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 1361 [2019-10-07 15:05:42,015 WARN L191 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 662 [2019-10-07 15:05:43,088 WARN L191 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 1361 [2019-10-07 15:05:45,131 WARN L191 SmtUtils]: Spent 2.02 s on a formula simplification. DAG size of input: 1363 DAG size of output: 1361 [2019-10-07 15:05:46,220 WARN L191 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 1361 [2019-10-07 15:05:46,492 WARN L191 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 662 [2019-10-07 15:05:47,566 WARN L191 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 1361 [2019-10-07 15:05:48,638 WARN L191 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 1361 [2019-10-07 15:05:49,711 WARN L191 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 1361 [2019-10-07 15:05:49,979 WARN L191 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 662 [2019-10-07 15:05:51,059 WARN L191 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 1361 [2019-10-07 15:05:52,199 WARN L191 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 1365 [2019-10-07 15:05:53,281 WARN L191 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 1365 [2019-10-07 15:05:53,544 WARN L191 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 665 [2019-10-07 15:05:54,629 WARN L191 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 1365 [2019-10-07 15:05:56,780 WARN L191 SmtUtils]: Spent 2.13 s on a formula simplification. DAG size of input: 1367 DAG size of output: 1363 [2019-10-07 15:05:57,877 WARN L191 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 1363 [2019-10-07 15:05:58,151 WARN L191 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 665 [2019-10-07 15:05:59,252 WARN L191 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 1365 [2019-10-07 15:06:01,240 WARN L191 SmtUtils]: Spent 1.98 s on a formula simplification. DAG size of input: 1367 DAG size of output: 1363 [2019-10-07 15:06:02,329 WARN L191 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 1363 [2019-10-07 15:06:02,591 WARN L191 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 665 [2019-10-07 15:06:03,701 WARN L191 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 1365 [2019-10-07 15:06:04,984 WARN L191 SmtUtils]: Spent 1.27 s on a formula simplification that was a NOOP. DAG size: 1370 [2019-10-07 15:06:06,096 WARN L191 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 1370 [2019-10-07 15:06:06,364 WARN L191 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 665 [2019-10-07 15:06:07,477 WARN L191 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 1370 [2019-10-07 15:06:08,588 WARN L191 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 1372 [2019-10-07 15:06:09,692 WARN L191 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 1372 [2019-10-07 15:06:09,963 WARN L191 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 665 [2019-10-07 15:06:11,070 WARN L191 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 1372 [2019-10-07 15:06:13,380 WARN L191 SmtUtils]: Spent 2.26 s on a formula simplification. DAG size of input: 1363 DAG size of output: 1361 [2019-10-07 15:06:14,470 WARN L191 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 1361 [2019-10-07 15:06:14,739 WARN L191 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 662 [2019-10-07 15:06:15,824 WARN L191 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 1361 [2019-10-07 15:06:17,813 WARN L191 SmtUtils]: Spent 1.98 s on a formula simplification. DAG size of input: 1363 DAG size of output: 1361 [2019-10-07 15:06:18,906 WARN L191 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 1361 [2019-10-07 15:06:19,180 WARN L191 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 662 [2019-10-07 15:06:20,269 WARN L191 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 1361 [2019-10-07 15:06:21,358 WARN L191 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 1361 [2019-10-07 15:06:22,443 WARN L191 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 1361 [2019-10-07 15:06:22,704 WARN L191 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 662 [2019-10-07 15:06:23,798 WARN L191 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 1361 [2019-10-07 15:06:25,804 WARN L191 SmtUtils]: Spent 1.96 s on a formula simplification. DAG size of input: 1363 DAG size of output: 1361 [2019-10-07 15:06:26,903 WARN L191 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 1361 [2019-10-07 15:06:27,176 WARN L191 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 662 [2019-10-07 15:06:28,263 WARN L191 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 1361 [2019-10-07 15:06:30,237 WARN L191 SmtUtils]: Spent 1.96 s on a formula simplification. DAG size of input: 1363 DAG size of output: 1361 [2019-10-07 15:06:31,331 WARN L191 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 1361 [2019-10-07 15:06:31,608 WARN L191 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 662 [2019-10-07 15:06:32,695 WARN L191 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 1361 [2019-10-07 15:06:33,789 WARN L191 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 1361 [2019-10-07 15:06:34,878 WARN L191 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 1361 [2019-10-07 15:06:35,137 WARN L191 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 662 [2019-10-07 15:06:36,222 WARN L191 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 1361 [2019-10-07 15:06:38,242 WARN L191 SmtUtils]: Spent 1.99 s on a formula simplification. DAG size of input: 1367 DAG size of output: 1365 [2019-10-07 15:06:39,339 WARN L191 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 1365 [2019-10-07 15:06:39,609 WARN L191 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 665 [2019-10-07 15:06:40,700 WARN L191 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 1365 [2019-10-07 15:06:42,689 WARN L191 SmtUtils]: Spent 1.97 s on a formula simplification. DAG size of input: 1367 DAG size of output: 1363 [2019-10-07 15:06:43,779 WARN L191 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 1363 [2019-10-07 15:06:44,047 WARN L191 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 665 [2019-10-07 15:06:45,120 WARN L191 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 1365 [2019-10-07 15:06:46,977 WARN L191 SmtUtils]: Spent 1.85 s on a formula simplification. DAG size of input: 1367 DAG size of output: 1363 [2019-10-07 15:06:48,057 WARN L191 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 1363 [2019-10-07 15:06:48,325 WARN L191 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 665 [2019-10-07 15:06:49,409 WARN L191 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 1365 [2019-10-07 15:06:51,397 WARN L191 SmtUtils]: Spent 1.98 s on a formula simplification. DAG size of input: 1372 DAG size of output: 1370 [2019-10-07 15:06:52,494 WARN L191 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 1370 [2019-10-07 15:06:52,783 WARN L191 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 665 [2019-10-07 15:06:53,879 WARN L191 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 1370 [2019-10-07 15:06:55,850 WARN L191 SmtUtils]: Spent 1.97 s on a formula simplification. DAG size of input: 1374 DAG size of output: 1372 [2019-10-07 15:06:56,947 WARN L191 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 1372 [2019-10-07 15:06:57,229 WARN L191 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 665 [2019-10-07 15:06:58,318 WARN L191 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 1372 [2019-10-07 15:06:58,581 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:06:58,582 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:133) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.lib.sifa.PriorityWorklist.add(PriorityWorklist.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.lambda$2(DagInterpreter.java:135) at java.lang.Iterable.forEach(Iterable.java:75) at java.util.Collections$UnmodifiableCollection.forEach(Collections.java:1080) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:135) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:139) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:287) ... 21 more [2019-10-07 15:06:58,589 INFO L168 Benchmark]: Toolchain (without parser) took 232194.85 ms. Allocated memory was 142.6 MB in the beginning and 2.3 GB in the end (delta: 2.2 GB). Free memory was 97.7 MB in the beginning and 156.9 MB in the end (delta: -59.2 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. [2019-10-07 15:06:58,590 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 142.6 MB. Free memory was 119.0 MB in the beginning and 118.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-10-07 15:06:58,590 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1117.48 ms. Allocated memory was 142.6 MB in the beginning and 200.8 MB in the end (delta: 58.2 MB). Free memory was 97.5 MB in the beginning and 127.9 MB in the end (delta: -30.4 MB). Peak memory consumption was 35.8 MB. Max. memory is 7.1 GB. [2019-10-07 15:06:58,592 INFO L168 Benchmark]: Boogie Preprocessor took 211.44 ms. Allocated memory is still 200.8 MB. Free memory was 127.9 MB in the beginning and 118.9 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. [2019-10-07 15:06:58,595 INFO L168 Benchmark]: RCFGBuilder took 4626.81 ms. Allocated memory was 200.8 MB in the beginning and 312.0 MB in the end (delta: 111.1 MB). Free memory was 118.9 MB in the beginning and 108.2 MB in the end (delta: 10.6 MB). Peak memory consumption was 121.8 MB. Max. memory is 7.1 GB. [2019-10-07 15:06:58,596 INFO L168 Benchmark]: TraceAbstraction took 226234.13 ms. Allocated memory was 312.0 MB in the beginning and 2.3 GB in the end (delta: 2.0 GB). Free memory was 108.2 MB in the beginning and 156.9 MB in the end (delta: -48.6 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2019-10-07 15:06:58,599 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 142.6 MB. Free memory was 119.0 MB in the beginning and 118.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1117.48 ms. Allocated memory was 142.6 MB in the beginning and 200.8 MB in the end (delta: 58.2 MB). Free memory was 97.5 MB in the beginning and 127.9 MB in the end (delta: -30.4 MB). Peak memory consumption was 35.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 211.44 ms. Allocated memory is still 200.8 MB. Free memory was 127.9 MB in the beginning and 118.9 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4626.81 ms. Allocated memory was 200.8 MB in the beginning and 312.0 MB in the end (delta: 111.1 MB). Free memory was 118.9 MB in the beginning and 108.2 MB in the end (delta: 10.6 MB). Peak memory consumption was 121.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 226234.13 ms. Allocated memory was 312.0 MB in the beginning and 2.3 GB in the end (delta: 2.0 GB). Free memory was 108.2 MB in the beginning and 156.9 MB in the end (delta: -48.6 MB). Peak memory consumption was 1.9 GB. 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...