/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/email_spec27_product18.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 04:18:28,697 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 04:18:28,699 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 04:18:28,713 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 04:18:28,713 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 04:18:28,715 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 04:18:28,716 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 04:18:28,718 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 04:18:28,719 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 04:18:28,720 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 04:18:28,721 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 04:18:28,722 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 04:18:28,723 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 04:18:28,724 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 04:18:28,725 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 04:18:28,726 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 04:18:28,727 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 04:18:28,728 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 04:18:28,730 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 04:18:28,732 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 04:18:28,733 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 04:18:28,735 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 04:18:28,736 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 04:18:28,737 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 04:18:28,739 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 04:18:28,740 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 04:18:28,740 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 04:18:28,741 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 04:18:28,741 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 04:18:28,742 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 04:18:28,743 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 04:18:28,743 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 04:18:28,744 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 04:18:28,745 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 04:18:28,746 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 04:18:28,746 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 04:18:28,747 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 04:18:28,747 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 04:18:28,747 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 04:18:28,748 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 04:18:28,749 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 04:18:28,750 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 [2019-11-07 04:18:28,777 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 04:18:28,777 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 04:18:28,779 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 04:18:28,779 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 04:18:28,779 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 04:18:28,779 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 04:18:28,780 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 04:18:28,780 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 04:18:28,780 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 04:18:28,780 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 04:18:28,780 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 04:18:28,780 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 04:18:28,781 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 04:18:28,781 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 04:18:28,781 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 04:18:28,781 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 04:18:28,781 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 04:18:28,782 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 04:18:28,782 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 04:18:28,782 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 04:18:28,782 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 04:18:28,782 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 04:18:28,783 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 04:18:28,783 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 04:18:28,783 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 04:18:28,783 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 04:18:28,783 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 04:18:28,784 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 04:18:28,784 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 [2019-11-07 04:18:29,072 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 04:18:29,091 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 04:18:29,095 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 04:18:29,097 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 04:18:29,097 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 04:18:29,098 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec27_product18.cil.c [2019-11-07 04:18:29,166 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/486f146f2/68bc197181054f91a08308978114598b/FLAG5c6068ec9 [2019-11-07 04:18:29,773 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 04:18:29,776 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec27_product18.cil.c [2019-11-07 04:18:29,811 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/486f146f2/68bc197181054f91a08308978114598b/FLAG5c6068ec9 [2019-11-07 04:18:30,009 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/486f146f2/68bc197181054f91a08308978114598b [2019-11-07 04:18:30,018 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 04:18:30,020 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 04:18:30,021 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 04:18:30,021 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 04:18:30,024 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 04:18:30,025 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:18:30" (1/1) ... [2019-11-07 04:18:30,028 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ee57cf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:18:30, skipping insertion in model container [2019-11-07 04:18:30,029 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:18:30" (1/1) ... [2019-11-07 04:18:30,035 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 04:18:30,107 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 04:18:30,907 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:18:30,930 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 04:18:31,030 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:18:31,121 INFO L192 MainTranslator]: Completed translation [2019-11-07 04:18:31,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:18:31 WrapperNode [2019-11-07 04:18:31,122 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 04:18:31,122 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 04:18:31,123 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 04:18:31,123 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 04:18:31,135 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:18:31" (1/1) ... [2019-11-07 04:18:31,136 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:18:31" (1/1) ... [2019-11-07 04:18:31,187 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:18:31" (1/1) ... [2019-11-07 04:18:31,188 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:18:31" (1/1) ... [2019-11-07 04:18:31,254 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:18:31" (1/1) ... [2019-11-07 04:18:31,274 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:18:31" (1/1) ... [2019-11-07 04:18:31,285 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:18:31" (1/1) ... [2019-11-07 04:18:31,303 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 04:18:31,303 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 04:18:31,304 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 04:18:31,304 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 04:18:31,305 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:18:31" (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 [2019-11-07 04:18:31,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 04:18:31,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 04:18:31,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-07 04:18:31,369 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-11-07 04:18:31,369 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-11-07 04:18:31,370 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-11-07 04:18:31,370 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-11-07 04:18:31,370 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-11-07 04:18:31,370 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-11-07 04:18:31,371 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-11-07 04:18:31,371 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-11-07 04:18:31,371 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-07 04:18:31,371 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 04:18:31,371 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-11-07 04:18:31,372 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-11-07 04:18:31,372 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-11-07 04:18:31,372 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-11-07 04:18:31,372 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-11-07 04:18:31,373 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-11-07 04:18:31,373 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-11-07 04:18:31,373 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-11-07 04:18:31,373 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-11-07 04:18:31,374 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-11-07 04:18:31,374 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-07 04:18:31,374 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-07 04:18:31,374 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-07 04:18:31,374 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-07 04:18:31,375 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-07 04:18:31,375 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-07 04:18:31,375 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-11-07 04:18:31,375 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-11-07 04:18:31,375 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-11-07 04:18:31,375 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-11-07 04:18:31,376 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-11-07 04:18:31,376 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-11-07 04:18:31,376 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-11-07 04:18:31,376 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-11-07 04:18:31,376 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-11-07 04:18:31,377 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-11-07 04:18:31,377 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-11-07 04:18:31,377 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-11-07 04:18:31,377 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-11-07 04:18:31,377 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-11-07 04:18:31,377 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-11-07 04:18:31,378 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-11-07 04:18:31,378 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-11-07 04:18:31,378 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-11-07 04:18:31,378 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-11-07 04:18:31,378 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-11-07 04:18:31,379 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-11-07 04:18:31,379 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-11-07 04:18:31,379 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-11-07 04:18:31,379 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-11-07 04:18:31,379 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-11-07 04:18:31,379 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-11-07 04:18:31,380 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-11-07 04:18:31,380 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-11-07 04:18:31,380 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-11-07 04:18:31,380 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AutoResponder [2019-11-07 04:18:31,380 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-11-07 04:18:31,381 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-11-07 04:18:31,381 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-11-07 04:18:31,381 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-11-07 04:18:31,381 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-11-07 04:18:31,381 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-11-07 04:18:31,382 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-11-07 04:18:31,382 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-11-07 04:18:31,382 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-11-07 04:18:31,382 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-11-07 04:18:31,382 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-11-07 04:18:31,382 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-11-07 04:18:31,383 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-11-07 04:18:31,383 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-11-07 04:18:31,383 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-11-07 04:18:31,383 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-11-07 04:18:31,383 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-11-07 04:18:31,384 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-11-07 04:18:31,384 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-11-07 04:18:31,384 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-11-07 04:18:31,384 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-11-07 04:18:31,384 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-11-07 04:18:31,385 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-11-07 04:18:31,385 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-11-07 04:18:31,385 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-11-07 04:18:31,385 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-11-07 04:18:31,385 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-11-07 04:18:31,385 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-07 04:18:31,386 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-11-07 04:18:31,386 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-11-07 04:18:31,386 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-11-07 04:18:31,386 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-11-07 04:18:31,386 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Keys [2019-11-07 04:18:31,387 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-11-07 04:18:31,387 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-11-07 04:18:31,387 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-11-07 04:18:31,387 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-11-07 04:18:31,387 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-11-07 04:18:31,387 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-11-07 04:18:31,388 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-11-07 04:18:31,388 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-11-07 04:18:31,388 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-11-07 04:18:31,388 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-11-07 04:18:31,388 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-11-07 04:18:31,388 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-11-07 04:18:31,389 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-11-07 04:18:31,389 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__VerifyForward_spec__1 [2019-11-07 04:18:31,389 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-07 04:18:31,389 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-07 04:18:31,389 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-07 04:18:31,390 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-07 04:18:31,390 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-07 04:18:31,390 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 04:18:31,390 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 04:18:31,390 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-07 04:18:31,390 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-11-07 04:18:31,391 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-11-07 04:18:31,391 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-11-07 04:18:31,391 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-11-07 04:18:31,391 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-11-07 04:18:31,391 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-11-07 04:18:31,392 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-11-07 04:18:31,392 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-11-07 04:18:31,392 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-11-07 04:18:31,392 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-07 04:18:31,392 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-07 04:18:31,392 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-07 04:18:31,393 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-11-07 04:18:31,393 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-11-07 04:18:31,393 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-11-07 04:18:31,393 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-11-07 04:18:31,393 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-11-07 04:18:31,393 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-11-07 04:18:31,394 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-11-07 04:18:31,394 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-11-07 04:18:31,394 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-11-07 04:18:31,394 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-11-07 04:18:31,394 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-11-07 04:18:31,394 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-07 04:18:31,395 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-07 04:18:31,395 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 04:18:31,395 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-11-07 04:18:31,395 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-11-07 04:18:31,395 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-11-07 04:18:31,395 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-11-07 04:18:31,395 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-11-07 04:18:31,396 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-11-07 04:18:31,396 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-11-07 04:18:31,396 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-11-07 04:18:31,396 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-11-07 04:18:31,396 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-11-07 04:18:31,396 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-11-07 04:18:31,397 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-11-07 04:18:31,397 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-11-07 04:18:31,397 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 04:18:31,397 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-07 04:18:31,397 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 04:18:31,397 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 04:18:31,397 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-07 04:18:31,398 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 04:18:31,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 04:18:31,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 04:18:31,398 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 04:18:31,398 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-07 04:18:31,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 04:18:31,398 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-07 04:18:31,398 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-07 04:18:31,399 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 04:18:31,399 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-07 04:18:31,399 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-07 04:18:31,399 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-07 04:18:31,399 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-11-07 04:18:31,399 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-11-07 04:18:31,399 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-11-07 04:18:31,399 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-11-07 04:18:31,400 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-11-07 04:18:31,400 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-11-07 04:18:31,400 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-11-07 04:18:31,400 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-11-07 04:18:31,400 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-11-07 04:18:31,400 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-11-07 04:18:31,400 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-11-07 04:18:31,400 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-11-07 04:18:31,401 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-11-07 04:18:31,401 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-11-07 04:18:31,401 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-11-07 04:18:31,401 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-11-07 04:18:31,401 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-11-07 04:18:31,401 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-11-07 04:18:31,401 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-11-07 04:18:31,402 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-11-07 04:18:31,402 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-11-07 04:18:31,402 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-11-07 04:18:31,402 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-11-07 04:18:31,402 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-11-07 04:18:31,402 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-11-07 04:18:31,402 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-11-07 04:18:31,403 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-11-07 04:18:31,403 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-11-07 04:18:31,403 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-11-07 04:18:31,403 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-11-07 04:18:31,403 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-11-07 04:18:31,403 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-11-07 04:18:31,403 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-11-07 04:18:31,404 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AutoResponder [2019-11-07 04:18:31,404 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-11-07 04:18:31,404 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-11-07 04:18:31,404 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-11-07 04:18:31,404 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-11-07 04:18:31,404 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-11-07 04:18:31,404 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-11-07 04:18:31,404 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-11-07 04:18:31,405 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-11-07 04:18:31,405 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-11-07 04:18:31,405 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-11-07 04:18:31,405 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-11-07 04:18:31,405 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-11-07 04:18:31,405 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-11-07 04:18:31,405 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-11-07 04:18:31,406 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-11-07 04:18:31,406 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-11-07 04:18:31,406 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-11-07 04:18:31,406 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-11-07 04:18:31,406 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-11-07 04:18:31,406 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-11-07 04:18:31,406 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-11-07 04:18:31,407 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-11-07 04:18:31,407 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-11-07 04:18:31,407 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-11-07 04:18:31,407 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-11-07 04:18:31,407 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__VerifyForward_spec__1 [2019-11-07 04:18:31,407 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Keys [2019-11-07 04:18:31,407 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-11-07 04:18:31,408 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-07 04:18:31,408 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-07 04:18:31,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 04:18:31,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 04:18:31,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 04:18:35,967 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 04:18:35,967 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-07 04:18:35,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:18:35 BoogieIcfgContainer [2019-11-07 04:18:35,969 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 04:18:35,969 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 04:18:35,970 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 04:18:35,972 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 04:18:35,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:18:30" (1/3) ... [2019-11-07 04:18:35,973 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43096e54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:18:35, skipping insertion in model container [2019-11-07 04:18:35,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:18:31" (2/3) ... [2019-11-07 04:18:35,974 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43096e54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:18:35, skipping insertion in model container [2019-11-07 04:18:35,974 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:18:35" (3/3) ... [2019-11-07 04:18:35,975 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec27_product18.cil.c [2019-11-07 04:18:35,985 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 04:18:35,996 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 04:18:36,008 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 04:18:36,050 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 04:18:36,050 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 04:18:36,050 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 04:18:36,050 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 04:18:36,051 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 04:18:36,051 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 04:18:36,051 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 04:18:36,051 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 04:18:36,076 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states. [2019-11-07 04:18:36,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2019-11-07 04:18:36,095 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:18:36,096 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-11-07 04:18:36,099 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:18:36,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:18:36,104 INFO L82 PathProgramCache]: Analyzing trace with hash -1476234630, now seen corresponding path program 1 times [2019-11-07 04:18:36,111 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:18:36,111 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185921245] [2019-11-07 04:18:36,111 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:18:36,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:18:36,839 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-11-07 04:18:36,840 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185921245] [2019-11-07 04:18:36,841 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:18:36,841 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 04:18:36,842 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174740134] [2019-11-07 04:18:36,848 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 04:18:36,848 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:18:36,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 04:18:36,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 04:18:36,866 INFO L87 Difference]: Start difference. First operand 352 states. Second operand 2 states. [2019-11-07 04:18:36,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:18:36,974 INFO L93 Difference]: Finished difference Result 484 states and 567 transitions. [2019-11-07 04:18:36,975 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 04:18:36,976 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 143 [2019-11-07 04:18:36,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:18:37,016 INFO L225 Difference]: With dead ends: 484 [2019-11-07 04:18:37,016 INFO L226 Difference]: Without dead ends: 317 [2019-11-07 04:18:37,023 INFO L630 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 [2019-11-07 04:18:37,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2019-11-07 04:18:37,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 317. [2019-11-07 04:18:37,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 317 states. [2019-11-07 04:18:37,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 370 transitions. [2019-11-07 04:18:37,115 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 370 transitions. Word has length 143 [2019-11-07 04:18:37,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:18:37,117 INFO L462 AbstractCegarLoop]: Abstraction has 317 states and 370 transitions. [2019-11-07 04:18:37,117 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 04:18:37,117 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 370 transitions. [2019-11-07 04:18:37,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2019-11-07 04:18:37,122 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:18:37,123 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-11-07 04:18:37,123 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:18:37,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:18:37,123 INFO L82 PathProgramCache]: Analyzing trace with hash -1480978745, now seen corresponding path program 1 times [2019-11-07 04:18:37,124 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:18:37,124 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569414179] [2019-11-07 04:18:37,124 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:18:37,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:18:37,347 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-11-07 04:18:37,348 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569414179] [2019-11-07 04:18:37,348 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:18:37,348 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:18:37,348 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978077099] [2019-11-07 04:18:37,353 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:18:37,353 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:18:37,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:18:37,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:18:37,354 INFO L87 Difference]: Start difference. First operand 317 states and 370 transitions. Second operand 3 states. [2019-11-07 04:18:37,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:18:37,403 INFO L93 Difference]: Finished difference Result 469 states and 535 transitions. [2019-11-07 04:18:37,403 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:18:37,403 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 144 [2019-11-07 04:18:37,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:18:37,411 INFO L225 Difference]: With dead ends: 469 [2019-11-07 04:18:37,411 INFO L226 Difference]: Without dead ends: 319 [2019-11-07 04:18:37,415 INFO L630 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 [2019-11-07 04:18:37,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2019-11-07 04:18:37,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 319. [2019-11-07 04:18:37,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2019-11-07 04:18:37,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 372 transitions. [2019-11-07 04:18:37,467 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 372 transitions. Word has length 144 [2019-11-07 04:18:37,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:18:37,469 INFO L462 AbstractCegarLoop]: Abstraction has 319 states and 372 transitions. [2019-11-07 04:18:37,469 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:18:37,469 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 372 transitions. [2019-11-07 04:18:37,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2019-11-07 04:18:37,475 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:18:37,477 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:18:37,477 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:18:37,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:18:37,477 INFO L82 PathProgramCache]: Analyzing trace with hash -573803076, now seen corresponding path program 1 times [2019-11-07 04:18:37,478 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:18:37,478 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090779725] [2019-11-07 04:18:37,479 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:18:37,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:18:37,745 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-11-07 04:18:37,746 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090779725] [2019-11-07 04:18:37,746 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:18:37,747 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:18:37,747 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412596122] [2019-11-07 04:18:37,750 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:18:37,751 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:18:37,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:18:37,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:18:37,752 INFO L87 Difference]: Start difference. First operand 319 states and 372 transitions. Second operand 3 states. [2019-11-07 04:18:37,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:18:37,818 INFO L93 Difference]: Finished difference Result 620 states and 751 transitions. [2019-11-07 04:18:37,822 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:18:37,822 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2019-11-07 04:18:37,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:18:37,831 INFO L225 Difference]: With dead ends: 620 [2019-11-07 04:18:37,831 INFO L226 Difference]: Without dead ends: 359 [2019-11-07 04:18:37,835 INFO L630 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 [2019-11-07 04:18:37,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2019-11-07 04:18:37,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 358. [2019-11-07 04:18:37,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 358 states. [2019-11-07 04:18:37,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 440 transitions. [2019-11-07 04:18:37,888 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 440 transitions. Word has length 153 [2019-11-07 04:18:37,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:18:37,889 INFO L462 AbstractCegarLoop]: Abstraction has 358 states and 440 transitions. [2019-11-07 04:18:37,889 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:18:37,890 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 440 transitions. [2019-11-07 04:18:37,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2019-11-07 04:18:37,899 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:18:37,902 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:18:37,902 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:18:37,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:18:37,903 INFO L82 PathProgramCache]: Analyzing trace with hash 1399251957, now seen corresponding path program 1 times [2019-11-07 04:18:37,903 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:18:37,904 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216352826] [2019-11-07 04:18:37,904 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:18:37,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:18:38,289 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-11-07 04:18:38,289 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216352826] [2019-11-07 04:18:38,290 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:18:38,290 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:18:38,290 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574539473] [2019-11-07 04:18:38,292 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:18:38,292 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:18:38,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:18:38,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:18:38,293 INFO L87 Difference]: Start difference. First operand 358 states and 440 transitions. Second operand 3 states. [2019-11-07 04:18:38,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:18:38,336 INFO L93 Difference]: Finished difference Result 734 states and 950 transitions. [2019-11-07 04:18:38,336 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:18:38,336 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 154 [2019-11-07 04:18:38,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:18:38,341 INFO L225 Difference]: With dead ends: 734 [2019-11-07 04:18:38,341 INFO L226 Difference]: Without dead ends: 434 [2019-11-07 04:18:38,351 INFO L630 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 [2019-11-07 04:18:38,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2019-11-07 04:18:38,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 433. [2019-11-07 04:18:38,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 433 states. [2019-11-07 04:18:38,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 570 transitions. [2019-11-07 04:18:38,382 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 570 transitions. Word has length 154 [2019-11-07 04:18:38,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:18:38,385 INFO L462 AbstractCegarLoop]: Abstraction has 433 states and 570 transitions. [2019-11-07 04:18:38,385 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:18:38,385 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 570 transitions. [2019-11-07 04:18:38,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2019-11-07 04:18:38,388 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:18:38,389 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:18:38,389 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:18:38,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:18:38,389 INFO L82 PathProgramCache]: Analyzing trace with hash -1518389017, now seen corresponding path program 1 times [2019-11-07 04:18:38,390 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:18:38,390 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151787705] [2019-11-07 04:18:38,391 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:18:38,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:18:38,629 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-11-07 04:18:38,629 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151787705] [2019-11-07 04:18:38,630 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:18:38,630 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-07 04:18:38,630 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740899915] [2019-11-07 04:18:38,632 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-07 04:18:38,632 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:18:38,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-07 04:18:38,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-11-07 04:18:38,634 INFO L87 Difference]: Start difference. First operand 433 states and 570 transitions. Second operand 8 states. [2019-11-07 04:18:38,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:18:38,694 INFO L93 Difference]: Finished difference Result 571 states and 722 transitions. [2019-11-07 04:18:38,694 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-07 04:18:38,694 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 157 [2019-11-07 04:18:38,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:18:38,699 INFO L225 Difference]: With dead ends: 571 [2019-11-07 04:18:38,699 INFO L226 Difference]: Without dead ends: 433 [2019-11-07 04:18:38,700 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-11-07 04:18:38,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2019-11-07 04:18:38,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 433. [2019-11-07 04:18:38,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 433 states. [2019-11-07 04:18:38,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 569 transitions. [2019-11-07 04:18:38,730 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 569 transitions. Word has length 157 [2019-11-07 04:18:38,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:18:38,733 INFO L462 AbstractCegarLoop]: Abstraction has 433 states and 569 transitions. [2019-11-07 04:18:38,733 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-07 04:18:38,733 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 569 transitions. [2019-11-07 04:18:38,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2019-11-07 04:18:38,737 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:18:38,737 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:18:38,737 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:18:38,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:18:38,738 INFO L82 PathProgramCache]: Analyzing trace with hash -1346468815, now seen corresponding path program 1 times [2019-11-07 04:18:38,738 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:18:38,738 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16443206] [2019-11-07 04:18:38,738 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:18:38,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:18:39,437 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-11-07 04:18:39,438 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16443206] [2019-11-07 04:18:39,438 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [730583241] [2019-11-07 04:18:39,438 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 [2019-11-07 04:18:39,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:18:39,984 INFO L256 TraceCheckSpWp]: Trace formula consists of 2527 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-07 04:18:40,000 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 04:18:40,105 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-11-07 04:18:40,106 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 04:18:40,420 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-11-07 04:18:40,422 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1795622660] [2019-11-07 04:18:40,450 INFO L159 IcfgInterpreter]: Started Sifa with 151 locations of interest [2019-11-07 04:18:40,451 INFO L166 IcfgInterpreter]: Building call graph [2019-11-07 04:18:40,457 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-07 04:18:40,464 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-07 04:18:40,464 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs