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_spec7_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:12:04,067 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:12:04,071 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:12:04,089 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:12:04,090 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:12:04,091 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:12:04,093 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:12:04,102 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:12:04,108 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:12:04,111 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:12:04,113 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:12:04,114 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:12:04,114 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:12:04,116 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:12:04,119 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:12:04,120 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:12:04,122 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:12:04,122 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:12:04,124 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:12:04,128 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:12:04,132 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:12:04,135 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:12:04,138 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:12:04,139 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:12:04,141 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:12:04,141 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:12:04,141 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:12:04,143 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:12:04,145 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:12:04,146 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:12:04,146 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:12:04,147 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:12:04,148 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:12:04,148 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:12:04,150 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:12:04,150 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:12:04,151 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:12:04,151 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:12:04,152 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:12:04,152 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:12:04,154 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:12:04,155 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 [2019-10-13 23:12:04,187 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:12:04,188 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:12:04,189 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:12:04,189 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:12:04,189 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:12:04,190 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:12:04,190 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:12:04,190 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:12:04,190 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:12:04,190 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:12:04,191 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:12:04,191 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:12:04,193 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:12:04,193 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:12:04,194 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:12:04,194 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:12:04,194 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:12:04,194 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:12:04,194 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:12:04,195 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:12:04,195 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:12:04,195 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:12:04,195 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:12:04,195 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:12:04,196 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:12:04,196 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:12:04,196 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:12:04,197 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:12:04,198 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 [2019-10-13 23:12:04,477 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:12:04,490 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:12:04,494 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:12:04,495 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:12:04,496 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:12:04,497 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec7_product35.cil.c [2019-10-13 23:12:04,559 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be9bd0506/9c3a0f6563614eb28f8ad9141ec6d4de/FLAGc3224427d [2019-10-13 23:12:05,156 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:12:05,156 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec7_product35.cil.c [2019-10-13 23:12:05,177 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be9bd0506/9c3a0f6563614eb28f8ad9141ec6d4de/FLAGc3224427d [2019-10-13 23:12:05,344 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be9bd0506/9c3a0f6563614eb28f8ad9141ec6d4de [2019-10-13 23:12:05,354 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:12:05,356 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:12:05,357 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:12:05,357 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:12:05,361 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:12:05,362 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:12:05" (1/1) ... [2019-10-13 23:12:05,364 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@605515df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:05, skipping insertion in model container [2019-10-13 23:12:05,365 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:12:05" (1/1) ... [2019-10-13 23:12:05,372 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:12:05,434 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:12:06,277 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:12:06,294 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:12:06,438 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:12:06,543 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:12:06,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:06 WrapperNode [2019-10-13 23:12:06,544 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:12:06,545 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:12:06,545 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:12:06,545 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:12:06,561 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:06" (1/1) ... [2019-10-13 23:12:06,562 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:06" (1/1) ... [2019-10-13 23:12:06,633 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:06" (1/1) ... [2019-10-13 23:12:06,633 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:06" (1/1) ... [2019-10-13 23:12:06,705 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:06" (1/1) ... [2019-10-13 23:12:06,743 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:06" (1/1) ... [2019-10-13 23:12:06,762 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:06" (1/1) ... [2019-10-13 23:12:06,778 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:12:06,778 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:12:06,778 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:12:06,779 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:12:06,784 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:06" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:12:06,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:12:06,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:12:06,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:12:06,850 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 23:12:06,851 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 23:12:06,851 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-13 23:12:06,851 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-13 23:12:06,851 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 23:12:06,851 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 23:12:06,852 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 23:12:06,852 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 23:12:06,852 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 23:12:06,852 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 23:12:06,852 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 23:12:06,853 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-13 23:12:06,853 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-13 23:12:06,853 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 23:12:06,853 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 23:12:06,853 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-13 23:12:06,854 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-13 23:12:06,854 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-13 23:12:06,855 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-13 23:12:06,855 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 23:12:06,855 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 23:12:06,856 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 23:12:06,856 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 23:12:06,856 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 23:12:06,856 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 23:12:06,856 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 23:12:06,857 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 23:12:06,857 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 23:12:06,857 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-13 23:12:06,857 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-13 23:12:06,857 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-13 23:12:06,858 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-13 23:12:06,858 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-13 23:12:06,858 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 23:12:06,858 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 23:12:06,858 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 23:12:06,859 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 23:12:06,859 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 23:12:06,859 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 23:12:06,859 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 23:12:06,859 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 23:12:06,860 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 23:12:06,860 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 23:12:06,860 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 23:12:06,860 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 23:12:06,860 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 23:12:06,860 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 23:12:06,860 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 23:12:06,861 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 23:12:06,861 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 23:12:06,861 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 23:12:06,861 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 23:12:06,861 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 23:12:06,861 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 23:12:06,862 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 23:12:06,862 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 23:12:06,862 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 23:12:06,862 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 23:12:06,862 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 23:12:06,862 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 23:12:06,863 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 23:12:06,863 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 23:12:06,863 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptVerify_spec__1 [2019-10-13 23:12:06,863 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:12:06,863 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:12:06,863 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:12:06,864 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:12:06,864 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:12:06,864 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:12:06,864 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:12:06,864 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:12:06,864 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:12:06,865 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:12:06,865 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:12:06,865 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 23:12:06,865 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 23:12:06,865 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 23:12:06,865 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 23:12:06,866 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 23:12:06,866 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 23:12:06,866 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 23:12:06,866 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 23:12:06,866 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:12:06,866 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:12:06,867 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 23:12:06,867 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 23:12:06,867 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 23:12:06,867 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 23:12:06,867 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 23:12:06,867 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 23:12:06,868 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 23:12:06,868 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 23:12:06,868 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 23:12:06,868 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-13 23:12:06,868 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-13 23:12:06,868 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-13 23:12:06,869 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 23:12:06,869 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 23:12:06,869 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 23:12:06,869 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 23:12:06,869 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 23:12:06,869 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 23:12:06,869 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 23:12:06,870 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 23:12:06,870 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 23:12:06,870 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 23:12:06,870 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 23:12:06,870 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 23:12:06,870 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 23:12:06,870 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 23:12:06,871 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 23:12:06,871 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 23:12:06,871 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 23:12:06,871 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 23:12:06,871 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 23:12:06,872 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 23:12:06,872 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 23:12:06,872 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:12:06,872 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:12:06,872 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:12:06,873 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:12:06,873 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 23:12:06,873 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:12:06,873 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 23:12:06,873 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 23:12:06,873 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 23:12:06,873 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 23:12:06,874 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 23:12:06,874 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 23:12:06,874 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 23:12:06,874 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 23:12:06,875 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 23:12:06,875 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 23:12:06,875 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 23:12:06,875 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 23:12:06,875 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 23:12:06,875 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 23:12:06,876 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 23:12:06,876 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-13 23:12:06,876 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-13 23:12:06,876 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 23:12:06,876 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 23:12:06,877 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 23:12:06,877 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 23:12:06,877 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 23:12:06,877 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 23:12:06,877 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 23:12:06,878 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 23:12:06,878 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 23:12:06,878 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 23:12:06,878 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 23:12:06,879 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 23:12:06,879 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 23:12:06,879 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 23:12:06,879 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 23:12:06,880 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 23:12:06,880 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 23:12:06,880 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 23:12:06,880 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 23:12:06,881 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 23:12:06,881 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 23:12:06,881 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 23:12:06,881 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 23:12:06,881 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 23:12:06,882 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 23:12:06,882 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 23:12:06,882 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 23:12:06,882 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 23:12:06,883 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-13 23:12:06,883 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-13 23:12:06,883 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-13 23:12:06,883 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-13 23:12:06,883 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-13 23:12:06,883 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 23:12:06,884 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-13 23:12:06,884 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-13 23:12:06,884 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-13 23:12:06,884 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-13 23:12:06,884 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-13 23:12:06,884 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-13 23:12:06,885 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptVerify_spec__1 [2019-10-13 23:12:06,885 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 23:12:06,885 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 23:12:06,885 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 23:12:06,885 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 23:12:06,885 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 23:12:06,886 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 23:12:06,886 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 23:12:06,886 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 23:12:06,886 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 23:12:06,887 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 23:12:06,887 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 23:12:06,887 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 23:12:06,887 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 23:12:06,888 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 23:12:06,888 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 23:12:06,888 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 23:12:06,888 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 23:12:06,889 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 23:12:06,889 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 23:12:06,889 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 23:12:06,889 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:12:06,890 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:12:06,890 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:12:06,890 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:12:06,890 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:12:06,890 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:12:06,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:12:06,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:12:06,891 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:12:06,891 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:12:06,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:12:06,892 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:12:06,892 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:12:06,892 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:12:06,892 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:12:06,893 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:12:06,893 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:12:06,893 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:12:06,893 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:12:06,893 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:12:06,893 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:12:06,894 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 23:12:06,894 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 23:12:06,894 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 23:12:06,894 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 23:12:06,894 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 23:12:06,895 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:12:06,895 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:12:06,895 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:12:06,895 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 23:12:06,895 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 23:12:06,895 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 23:12:06,896 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 23:12:06,896 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 23:12:06,896 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 23:12:06,896 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 23:12:06,896 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 23:12:06,896 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 23:12:06,897 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-13 23:12:06,897 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-13 23:12:06,897 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-13 23:12:06,897 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 23:12:06,897 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 23:12:06,897 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 23:12:06,898 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 23:12:06,898 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 23:12:06,898 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 23:12:06,898 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 23:12:06,898 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 23:12:06,899 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 23:12:06,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:12:06,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:12:06,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:12:11,644 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:12:11,645 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 23:12:11,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:12:11 BoogieIcfgContainer [2019-10-13 23:12:11,648 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:12:11,649 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:12:11,649 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:12:11,654 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:12:11,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:12:05" (1/3) ... [2019-10-13 23:12:11,656 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f276d7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:12:11, skipping insertion in model container [2019-10-13 23:12:11,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:06" (2/3) ... [2019-10-13 23:12:11,656 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f276d7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:12:11, skipping insertion in model container [2019-10-13 23:12:11,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:12:11" (3/3) ... [2019-10-13 23:12:11,658 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec7_product35.cil.c [2019-10-13 23:12:11,668 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:12:11,678 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:12:11,689 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:12:11,721 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:12:11,721 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:12:11,721 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:12:11,721 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:12:11,721 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:12:11,722 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:12:11,722 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:12:11,722 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:12:11,754 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states. [2019-10-13 23:12:11,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2019-10-13 23:12:11,773 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:12:11,774 INFO L380 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] [2019-10-13 23:12:11,779 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:12:11,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:12:11,785 INFO L82 PathProgramCache]: Analyzing trace with hash -270206354, now seen corresponding path program 1 times [2019-10-13 23:12:11,795 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:12:11,796 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178342884] [2019-10-13 23:12:11,796 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:11,796 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:11,797 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:12:12,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:12,483 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 23:12:12,484 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178342884] [2019-10-13 23:12:12,484 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:12:12,485 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:12:12,485 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706533359] [2019-10-13 23:12:12,490 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:12:12,491 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:12:12,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:12:12,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:12:12,508 INFO L87 Difference]: Start difference. First operand 475 states. Second operand 2 states. [2019-10-13 23:12:12,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:12:12,595 INFO L93 Difference]: Finished difference Result 725 states and 866 transitions. [2019-10-13 23:12:12,595 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:12:12,597 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 152 [2019-10-13 23:12:12,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:12:12,628 INFO L225 Difference]: With dead ends: 725 [2019-10-13 23:12:12,628 INFO L226 Difference]: Without dead ends: 448 [2019-10-13 23:12:12,638 INFO L600 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 [2019-10-13 23:12:12,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2019-10-13 23:12:12,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 448. [2019-10-13 23:12:12,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 448 states. [2019-10-13 23:12:12,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 529 transitions. [2019-10-13 23:12:12,777 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 529 transitions. Word has length 152 [2019-10-13 23:12:12,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:12:12,779 INFO L462 AbstractCegarLoop]: Abstraction has 448 states and 529 transitions. [2019-10-13 23:12:12,779 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:12:12,779 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 529 transitions. [2019-10-13 23:12:12,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2019-10-13 23:12:12,784 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:12:12,785 INFO L380 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] [2019-10-13 23:12:12,785 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:12:12,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:12:12,786 INFO L82 PathProgramCache]: Analyzing trace with hash 1149042658, now seen corresponding path program 1 times [2019-10-13 23:12:12,786 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:12:12,786 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440062283] [2019-10-13 23:12:12,786 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:12,786 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:12,787 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:12:12,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:13,123 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 23:12:13,124 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440062283] [2019-10-13 23:12:13,124 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:12:13,125 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:12:13,125 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169253056] [2019-10-13 23:12:13,129 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:12:13,130 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:12:13,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:12:13,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:12:13,131 INFO L87 Difference]: Start difference. First operand 448 states and 529 transitions. Second operand 3 states. [2019-10-13 23:12:13,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:12:13,313 INFO L93 Difference]: Finished difference Result 710 states and 831 transitions. [2019-10-13 23:12:13,314 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:12:13,314 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2019-10-13 23:12:13,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:12:13,327 INFO L225 Difference]: With dead ends: 710 [2019-10-13 23:12:13,327 INFO L226 Difference]: Without dead ends: 450 [2019-10-13 23:12:13,331 INFO L600 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 [2019-10-13 23:12:13,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2019-10-13 23:12:13,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 450. [2019-10-13 23:12:13,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 450 states. [2019-10-13 23:12:13,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 531 transitions. [2019-10-13 23:12:13,396 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 531 transitions. Word has length 153 [2019-10-13 23:12:13,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:12:13,398 INFO L462 AbstractCegarLoop]: Abstraction has 450 states and 531 transitions. [2019-10-13 23:12:13,398 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:12:13,398 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 531 transitions. [2019-10-13 23:12:13,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2019-10-13 23:12:13,406 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:12:13,407 INFO L380 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] [2019-10-13 23:12:13,407 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:12:13,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:12:13,408 INFO L82 PathProgramCache]: Analyzing trace with hash -1628658684, now seen corresponding path program 1 times [2019-10-13 23:12:13,408 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:12:13,408 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782834773] [2019-10-13 23:12:13,409 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:13,409 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:13,409 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:12:13,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:13,718 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 23:12:13,718 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782834773] [2019-10-13 23:12:13,718 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:12:13,719 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:12:13,719 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208035985] [2019-10-13 23:12:13,720 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:12:13,720 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:12:13,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:12:13,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:12:13,721 INFO L87 Difference]: Start difference. First operand 450 states and 531 transitions. Second operand 3 states. [2019-10-13 23:12:13,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:12:13,770 INFO L93 Difference]: Finished difference Result 886 states and 1075 transitions. [2019-10-13 23:12:13,770 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:12:13,770 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 165 [2019-10-13 23:12:13,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:12:13,775 INFO L225 Difference]: With dead ends: 886 [2019-10-13 23:12:13,775 INFO L226 Difference]: Without dead ends: 494 [2019-10-13 23:12:13,777 INFO L600 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 [2019-10-13 23:12:13,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2019-10-13 23:12:13,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 493. [2019-10-13 23:12:13,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 493 states. [2019-10-13 23:12:13,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 605 transitions. [2019-10-13 23:12:13,805 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 605 transitions. Word has length 165 [2019-10-13 23:12:13,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:12:13,806 INFO L462 AbstractCegarLoop]: Abstraction has 493 states and 605 transitions. [2019-10-13 23:12:13,806 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:12:13,806 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 605 transitions. [2019-10-13 23:12:13,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2019-10-13 23:12:13,815 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:12:13,816 INFO L380 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] [2019-10-13 23:12:13,816 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:12:13,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:12:13,816 INFO L82 PathProgramCache]: Analyzing trace with hash -1850522383, now seen corresponding path program 1 times [2019-10-13 23:12:13,817 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:12:13,817 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380245589] [2019-10-13 23:12:13,817 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:13,818 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:13,818 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:12:13,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:14,789 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-13 23:12:14,789 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380245589] [2019-10-13 23:12:14,789 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:12:14,790 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2019-10-13 23:12:14,790 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145173007] [2019-10-13 23:12:14,790 INFO L442 AbstractCegarLoop]: Interpolant automaton has 30 states [2019-10-13 23:12:14,791 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:12:14,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2019-10-13 23:12:14,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=793, Unknown=0, NotChecked=0, Total=870 [2019-10-13 23:12:14,792 INFO L87 Difference]: Start difference. First operand 493 states and 605 transitions. Second operand 30 states. [2019-10-13 23:12:26,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:12:26,527 INFO L93 Difference]: Finished difference Result 1088 states and 1344 transitions. [2019-10-13 23:12:26,527 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2019-10-13 23:12:26,528 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 166 [2019-10-13 23:12:26,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:12:26,534 INFO L225 Difference]: With dead ends: 1088 [2019-10-13 23:12:26,534 INFO L226 Difference]: Without dead ends: 836 [2019-10-13 23:12:26,536 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 319 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=181, Invalid=2171, Unknown=0, NotChecked=0, Total=2352 [2019-10-13 23:12:26,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states. [2019-10-13 23:12:26,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 824. [2019-10-13 23:12:26,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 824 states. [2019-10-13 23:12:26,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 824 states to 824 states and 1020 transitions. [2019-10-13 23:12:26,577 INFO L78 Accepts]: Start accepts. Automaton has 824 states and 1020 transitions. Word has length 166 [2019-10-13 23:12:26,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:12:26,578 INFO L462 AbstractCegarLoop]: Abstraction has 824 states and 1020 transitions. [2019-10-13 23:12:26,578 INFO L463 AbstractCegarLoop]: Interpolant automaton has 30 states. [2019-10-13 23:12:26,579 INFO L276 IsEmpty]: Start isEmpty. Operand 824 states and 1020 transitions. [2019-10-13 23:12:26,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2019-10-13 23:12:26,582 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:12:26,583 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:12:26,583 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:12:26,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:12:26,583 INFO L82 PathProgramCache]: Analyzing trace with hash -1944425368, now seen corresponding path program 1 times [2019-10-13 23:12:26,584 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:12:26,584 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723719300] [2019-10-13 23:12:26,584 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:26,584 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:26,584 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:12:26,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:26,817 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-13 23:12:26,818 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723719300] [2019-10-13 23:12:26,818 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:12:26,819 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-13 23:12:26,819 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105406279] [2019-10-13 23:12:26,820 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-13 23:12:26,821 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:12:26,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-13 23:12:26,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-13 23:12:26,822 INFO L87 Difference]: Start difference. First operand 824 states and 1020 transitions. Second operand 10 states. [2019-10-13 23:12:26,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:12:26,883 INFO L93 Difference]: Finished difference Result 833 states and 1032 transitions. [2019-10-13 23:12:26,883 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-13 23:12:26,883 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 170 [2019-10-13 23:12:26,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:12:26,891 INFO L225 Difference]: With dead ends: 833 [2019-10-13 23:12:26,892 INFO L226 Difference]: Without dead ends: 830 [2019-10-13 23:12:26,892 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-13 23:12:26,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 830 states. [2019-10-13 23:12:26,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 830 to 830. [2019-10-13 23:12:26,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 830 states. [2019-10-13 23:12:26,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 830 states to 830 states and 1027 transitions. [2019-10-13 23:12:26,947 INFO L78 Accepts]: Start accepts. Automaton has 830 states and 1027 transitions. Word has length 170 [2019-10-13 23:12:26,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:12:26,950 INFO L462 AbstractCegarLoop]: Abstraction has 830 states and 1027 transitions. [2019-10-13 23:12:26,950 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-13 23:12:26,950 INFO L276 IsEmpty]: Start isEmpty. Operand 830 states and 1027 transitions. [2019-10-13 23:12:26,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2019-10-13 23:12:26,953 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:12:26,954 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:12:26,954 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:12:26,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:12:26,955 INFO L82 PathProgramCache]: Analyzing trace with hash -1990360587, now seen corresponding path program 1 times [2019-10-13 23:12:26,955 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:12:26,955 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85939046] [2019-10-13 23:12:26,955 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:26,955 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:26,956 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:12:27,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:27,730 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-13 23:12:27,730 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85939046] [2019-10-13 23:12:27,731 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2043268658] [2019-10-13 23:12:27,731 INFO L94 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 [2019-10-13 23:12:28,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:28,324 INFO L256 TraceCheckSpWp]: Trace formula consists of 3059 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-13 23:12:28,342 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:12:28,476 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 23:12:28,476 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:12:28,814 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 23:12:28,814 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1494180045] [2019-10-13 23:12:28,847 INFO L162 IcfgInterpreter]: Started Sifa with 157 locations of interest [2019-10-13 23:12:28,847 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 23:12:28,856 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 23:12:28,864 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 23:12:28,864 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs