/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_spec4_product18.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 04:21:30,906 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 04:21:30,909 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 04:21:30,928 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 04:21:30,929 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 04:21:30,931 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 04:21:30,933 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 04:21:30,942 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 04:21:30,947 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 04:21:30,950 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 04:21:30,951 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 04:21:30,952 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 04:21:30,953 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 04:21:30,955 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 04:21:30,956 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 04:21:30,958 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 04:21:30,960 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 04:21:30,961 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 04:21:30,962 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 04:21:30,968 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 04:21:30,973 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 04:21:30,978 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 04:21:30,982 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 04:21:30,982 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 04:21:30,985 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 04:21:30,985 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 04:21:30,985 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 04:21:30,987 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 04:21:30,987 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 04:21:30,989 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 04:21:30,990 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 04:21:30,990 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 04:21:30,991 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 04:21:30,992 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 04:21:30,993 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 04:21:30,994 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 04:21:30,994 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 04:21:30,994 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 04:21:30,995 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 04:21:30,995 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 04:21:30,996 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 04:21:30,997 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 04:21:31,031 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 04:21:31,031 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 04:21:31,032 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 04:21:31,036 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 04:21:31,036 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 04:21:31,036 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 04:21:31,037 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 04:21:31,037 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 04:21:31,037 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 04:21:31,037 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 04:21:31,037 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 04:21:31,037 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 04:21:31,038 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 04:21:31,038 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 04:21:31,038 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 04:21:31,038 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 04:21:31,038 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 04:21:31,039 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 04:21:31,040 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 04:21:31,041 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 04:21:31,041 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 04:21:31,041 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 04:21:31,041 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 04:21:31,041 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 04:21:31,042 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 04:21:31,042 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 04:21:31,042 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 04:21:31,042 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 04:21:31,042 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 04:21:31,380 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 04:21:31,400 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 04:21:31,404 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 04:21:31,405 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 04:21:31,406 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 04:21:31,406 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec4_product18.cil.c [2019-11-07 04:21:31,480 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b869cac9/b0f66ba8b2514b73b95186a339efe347/FLAGa0fb2da33 [2019-11-07 04:21:32,039 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 04:21:32,040 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec4_product18.cil.c [2019-11-07 04:21:32,061 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b869cac9/b0f66ba8b2514b73b95186a339efe347/FLAGa0fb2da33 [2019-11-07 04:21:32,312 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b869cac9/b0f66ba8b2514b73b95186a339efe347 [2019-11-07 04:21:32,322 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 04:21:32,323 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 04:21:32,324 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 04:21:32,324 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 04:21:32,328 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 04:21:32,329 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:21:32" (1/1) ... [2019-11-07 04:21:32,332 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71143ccb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:21:32, skipping insertion in model container [2019-11-07 04:21:32,332 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:21:32" (1/1) ... [2019-11-07 04:21:32,340 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 04:21:32,426 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 04:21:33,165 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:21:33,186 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 04:21:33,314 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:21:33,389 INFO L192 MainTranslator]: Completed translation [2019-11-07 04:21:33,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:21:33 WrapperNode [2019-11-07 04:21:33,389 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 04:21:33,390 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 04:21:33,390 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 04:21:33,390 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 04:21:33,404 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:21:33" (1/1) ... [2019-11-07 04:21:33,404 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:21:33" (1/1) ... [2019-11-07 04:21:33,441 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:21:33" (1/1) ... [2019-11-07 04:21:33,442 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:21:33" (1/1) ... [2019-11-07 04:21:33,515 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:21:33" (1/1) ... [2019-11-07 04:21:33,554 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:21:33" (1/1) ... [2019-11-07 04:21:33,565 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:21:33" (1/1) ... [2019-11-07 04:21:33,580 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 04:21:33,580 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 04:21:33,581 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 04:21:33,581 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 04:21:33,582 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:21:33" (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 04:21:33,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 04:21:33,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 04:21:33,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-07 04:21:33,664 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-11-07 04:21:33,665 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-11-07 04:21:33,666 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-11-07 04:21:33,667 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-11-07 04:21:33,668 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-11-07 04:21:33,668 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-11-07 04:21:33,668 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-11-07 04:21:33,669 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-11-07 04:21:33,670 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-11-07 04:21:33,670 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-11-07 04:21:33,670 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-11-07 04:21:33,671 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-11-07 04:21:33,671 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-11-07 04:21:33,673 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-11-07 04:21:33,674 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-11-07 04:21:33,674 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-11-07 04:21:33,674 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-11-07 04:21:33,675 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-11-07 04:21:33,675 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-11-07 04:21:33,675 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-11-07 04:21:33,675 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-11-07 04:21:33,676 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-11-07 04:21:33,676 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-11-07 04:21:33,676 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-11-07 04:21:33,676 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-11-07 04:21:33,677 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-11-07 04:21:33,677 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-11-07 04:21:33,677 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-11-07 04:21:33,677 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-11-07 04:21:33,678 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-11-07 04:21:33,678 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-11-07 04:21:33,678 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-11-07 04:21:33,678 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-11-07 04:21:33,678 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-11-07 04:21:33,679 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-11-07 04:21:33,679 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-11-07 04:21:33,679 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-11-07 04:21:33,679 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-11-07 04:21:33,680 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-11-07 04:21:33,680 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-11-07 04:21:33,680 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-11-07 04:21:33,680 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-11-07 04:21:33,681 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-11-07 04:21:33,681 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-11-07 04:21:33,681 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-11-07 04:21:33,681 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-11-07 04:21:33,682 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-11-07 04:21:33,682 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-11-07 04:21:33,682 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-11-07 04:21:33,682 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-11-07 04:21:33,682 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-11-07 04:21:33,683 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-11-07 04:21:33,683 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-11-07 04:21:33,683 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-11-07 04:21:33,683 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-11-07 04:21:33,684 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-11-07 04:21:33,684 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-11-07 04:21:33,685 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-11-07 04:21:33,685 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-07 04:21:33,685 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 04:21:33,685 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-11-07 04:21:33,685 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-11-07 04:21:33,686 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-11-07 04:21:33,686 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-11-07 04:21:33,686 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-11-07 04:21:33,686 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-11-07 04:21:33,686 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-11-07 04:21:33,686 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-11-07 04:21:33,687 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-11-07 04:21:33,687 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-11-07 04:21:33,688 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AutoResponder [2019-11-07 04:21:33,688 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-11-07 04:21:33,688 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-11-07 04:21:33,689 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-11-07 04:21:33,689 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-11-07 04:21:33,689 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-11-07 04:21:33,689 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-07 04:21:33,690 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-07 04:21:33,690 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-07 04:21:33,691 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-07 04:21:33,691 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-07 04:21:33,691 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-07 04:21:33,691 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-07 04:21:33,692 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-07 04:21:33,692 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-07 04:21:33,693 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-07 04:21:33,693 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-07 04:21:33,693 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignForward_spec__1 [2019-11-07 04:21:33,693 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-11-07 04:21:33,693 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-11-07 04:21:33,693 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-11-07 04:21:33,694 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-11-07 04:21:33,694 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Keys [2019-11-07 04:21:33,694 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-11-07 04:21:33,694 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-11-07 04:21:33,694 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-11-07 04:21:33,694 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-11-07 04:21:33,695 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-11-07 04:21:33,695 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-11-07 04:21:33,695 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-11-07 04:21:33,695 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-11-07 04:21:33,696 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-11-07 04:21:33,696 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-11-07 04:21:33,696 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-11-07 04:21:33,696 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-11-07 04:21:33,697 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-11-07 04:21:33,697 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-07 04:21:33,697 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-11-07 04:21:33,697 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 04:21:33,698 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 04:21:33,698 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-11-07 04:21:33,698 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-11-07 04:21:33,699 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-11-07 04:21:33,699 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-11-07 04:21:33,699 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-11-07 04:21:33,699 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-11-07 04:21:33,699 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-11-07 04:21:33,700 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-11-07 04:21:33,704 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-11-07 04:21:33,704 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-11-07 04:21:33,704 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-11-07 04:21:33,706 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-11-07 04:21:33,706 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-11-07 04:21:33,706 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-11-07 04:21:33,706 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-11-07 04:21:33,706 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-11-07 04:21:33,707 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-11-07 04:21:33,707 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-11-07 04:21:33,707 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-11-07 04:21:33,708 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-11-07 04:21:33,708 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-11-07 04:21:33,712 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-11-07 04:21:33,712 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-11-07 04:21:33,713 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-11-07 04:21:33,713 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-11-07 04:21:33,714 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-11-07 04:21:33,714 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-11-07 04:21:33,714 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-11-07 04:21:33,714 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-11-07 04:21:33,714 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-11-07 04:21:33,715 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-11-07 04:21:33,721 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-11-07 04:21:33,721 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-11-07 04:21:33,722 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-11-07 04:21:33,722 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-11-07 04:21:33,722 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-11-07 04:21:33,722 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-11-07 04:21:33,722 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-11-07 04:21:33,722 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-11-07 04:21:33,722 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-11-07 04:21:33,723 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-11-07 04:21:33,723 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-11-07 04:21:33,723 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-11-07 04:21:33,723 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-11-07 04:21:33,723 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-11-07 04:21:33,723 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-11-07 04:21:33,725 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-11-07 04:21:33,725 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-11-07 04:21:33,725 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-11-07 04:21:33,725 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-11-07 04:21:33,725 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-07 04:21:33,726 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-11-07 04:21:33,726 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-07 04:21:33,726 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-07 04:21:33,726 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-07 04:21:33,726 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-11-07 04:21:33,726 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-11-07 04:21:33,727 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-11-07 04:21:33,727 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-11-07 04:21:33,727 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-11-07 04:21:33,727 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-11-07 04:21:33,727 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-11-07 04:21:33,728 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-11-07 04:21:33,728 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-11-07 04:21:33,728 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-11-07 04:21:33,728 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-11-07 04:21:33,728 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-07 04:21:33,728 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-07 04:21:33,729 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 04:21:33,729 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-11-07 04:21:33,729 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-11-07 04:21:33,729 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-11-07 04:21:33,729 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-11-07 04:21:33,729 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-11-07 04:21:33,730 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-11-07 04:21:33,730 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-11-07 04:21:33,730 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-11-07 04:21:33,730 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-11-07 04:21:33,730 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-11-07 04:21:33,730 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-11-07 04:21:33,731 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-11-07 04:21:33,731 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-11-07 04:21:33,731 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 04:21:33,731 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-11-07 04:21:33,731 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-11-07 04:21:33,731 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-11-07 04:21:33,731 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-11-07 04:21:33,732 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AutoResponder [2019-11-07 04:21:33,732 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-11-07 04:21:33,732 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-07 04:21:33,732 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 04:21:33,732 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 04:21:33,732 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-07 04:21:33,732 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 04:21:33,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 04:21:33,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 04:21:33,733 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 04:21:33,733 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-07 04:21:33,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 04:21:33,733 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-07 04:21:33,733 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-07 04:21:33,733 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 04:21:33,734 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-07 04:21:33,734 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-07 04:21:33,734 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-07 04:21:33,734 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-07 04:21:33,734 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-07 04:21:33,734 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignForward_spec__1 [2019-11-07 04:21:33,734 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-11-07 04:21:33,735 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-11-07 04:21:33,735 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-11-07 04:21:33,735 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-11-07 04:21:33,735 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-11-07 04:21:33,735 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-11-07 04:21:33,735 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-11-07 04:21:33,735 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-11-07 04:21:33,736 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-11-07 04:21:33,736 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-11-07 04:21:33,736 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Keys [2019-11-07 04:21:33,736 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-11-07 04:21:33,736 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-11-07 04:21:33,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 04:21:33,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 04:21:33,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 04:21:38,697 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 04:21:38,697 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-07 04:21:38,699 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:21:38 BoogieIcfgContainer [2019-11-07 04:21:38,699 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 04:21:38,700 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 04:21:38,700 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 04:21:38,703 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 04:21:38,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:21:32" (1/3) ... [2019-11-07 04:21:38,704 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10587012 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:21:38, skipping insertion in model container [2019-11-07 04:21:38,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:21:33" (2/3) ... [2019-11-07 04:21:38,705 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10587012 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:21:38, skipping insertion in model container [2019-11-07 04:21:38,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:21:38" (3/3) ... [2019-11-07 04:21:38,707 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec4_product18.cil.c [2019-11-07 04:21:38,717 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 04:21:38,727 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 04:21:38,738 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 04:21:38,783 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 04:21:38,783 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 04:21:38,783 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 04:21:38,783 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 04:21:38,784 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 04:21:38,784 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 04:21:38,784 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 04:21:38,786 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 04:21:38,828 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states. [2019-11-07 04:21:38,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2019-11-07 04:21:38,861 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:21:38,862 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] [2019-11-07 04:21:38,865 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:21:38,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:21:38,872 INFO L82 PathProgramCache]: Analyzing trace with hash -1826903467, now seen corresponding path program 1 times [2019-11-07 04:21:38,883 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:21:38,883 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768588392] [2019-11-07 04:21:38,883 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:21:39,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:21:39,476 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 04:21:39,476 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768588392] [2019-11-07 04:21:39,477 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:21:39,477 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 04:21:39,478 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207656664] [2019-11-07 04:21:39,488 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 04:21:39,489 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:21:39,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 04:21:39,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 04:21:39,505 INFO L87 Difference]: Start difference. First operand 350 states. Second operand 2 states. [2019-11-07 04:21:39,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:21:39,589 INFO L93 Difference]: Finished difference Result 476 states and 555 transitions. [2019-11-07 04:21:39,589 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 04:21:39,590 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 118 [2019-11-07 04:21:39,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:21:39,627 INFO L225 Difference]: With dead ends: 476 [2019-11-07 04:21:39,628 INFO L226 Difference]: Without dead ends: 313 [2019-11-07 04:21:39,635 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 04:21:39,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2019-11-07 04:21:39,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 313. [2019-11-07 04:21:39,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 313 states. [2019-11-07 04:21:39,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 366 transitions. [2019-11-07 04:21:39,735 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 366 transitions. Word has length 118 [2019-11-07 04:21:39,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:21:39,737 INFO L462 AbstractCegarLoop]: Abstraction has 313 states and 366 transitions. [2019-11-07 04:21:39,737 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 04:21:39,737 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 366 transitions. [2019-11-07 04:21:39,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2019-11-07 04:21:39,743 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:21:39,744 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] [2019-11-07 04:21:39,746 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:21:39,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:21:39,746 INFO L82 PathProgramCache]: Analyzing trace with hash -488779353, now seen corresponding path program 1 times [2019-11-07 04:21:39,747 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:21:39,747 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771290942] [2019-11-07 04:21:39,747 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:21:39,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:21:40,009 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 04:21:40,010 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771290942] [2019-11-07 04:21:40,010 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:21:40,010 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:21:40,011 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771770234] [2019-11-07 04:21:40,013 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:21:40,013 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:21:40,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:21:40,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:21:40,014 INFO L87 Difference]: Start difference. First operand 313 states and 366 transitions. Second operand 3 states. [2019-11-07 04:21:40,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:21:40,055 INFO L93 Difference]: Finished difference Result 461 states and 527 transitions. [2019-11-07 04:21:40,055 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:21:40,055 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 119 [2019-11-07 04:21:40,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:21:40,059 INFO L225 Difference]: With dead ends: 461 [2019-11-07 04:21:40,060 INFO L226 Difference]: Without dead ends: 315 [2019-11-07 04:21:40,062 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 04:21:40,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2019-11-07 04:21:40,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 315. [2019-11-07 04:21:40,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 315 states. [2019-11-07 04:21:40,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 368 transitions. [2019-11-07 04:21:40,110 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 368 transitions. Word has length 119 [2019-11-07 04:21:40,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:21:40,112 INFO L462 AbstractCegarLoop]: Abstraction has 315 states and 368 transitions. [2019-11-07 04:21:40,112 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:21:40,113 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 368 transitions. [2019-11-07 04:21:40,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2019-11-07 04:21:40,117 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:21:40,117 INFO L410 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] [2019-11-07 04:21:40,117 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:21:40,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:21:40,118 INFO L82 PathProgramCache]: Analyzing trace with hash -1990736762, now seen corresponding path program 1 times [2019-11-07 04:21:40,118 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:21:40,118 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909259658] [2019-11-07 04:21:40,118 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:21:40,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:21:40,316 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-11-07 04:21:40,317 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909259658] [2019-11-07 04:21:40,317 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:21:40,317 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:21:40,318 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274700708] [2019-11-07 04:21:40,320 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:21:40,320 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:21:40,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:21:40,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:21:40,321 INFO L87 Difference]: Start difference. First operand 315 states and 368 transitions. Second operand 3 states. [2019-11-07 04:21:40,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:21:40,365 INFO L93 Difference]: Finished difference Result 612 states and 743 transitions. [2019-11-07 04:21:40,367 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:21:40,367 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 128 [2019-11-07 04:21:40,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:21:40,372 INFO L225 Difference]: With dead ends: 612 [2019-11-07 04:21:40,372 INFO L226 Difference]: Without dead ends: 355 [2019-11-07 04:21:40,378 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 04:21:40,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2019-11-07 04:21:40,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 354. [2019-11-07 04:21:40,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 354 states. [2019-11-07 04:21:40,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 436 transitions. [2019-11-07 04:21:40,418 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 436 transitions. Word has length 128 [2019-11-07 04:21:40,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:21:40,419 INFO L462 AbstractCegarLoop]: Abstraction has 354 states and 436 transitions. [2019-11-07 04:21:40,420 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:21:40,420 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 436 transitions. [2019-11-07 04:21:40,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2019-11-07 04:21:40,424 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:21:40,482 INFO L410 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] [2019-11-07 04:21:40,482 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:21:40,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:21:40,485 INFO L82 PathProgramCache]: Analyzing trace with hash -834547700, now seen corresponding path program 1 times [2019-11-07 04:21:40,485 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:21:40,485 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575876695] [2019-11-07 04:21:40,486 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:21:40,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:21:40,637 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-11-07 04:21:40,637 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575876695] [2019-11-07 04:21:40,637 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:21:40,638 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:21:40,638 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496282759] [2019-11-07 04:21:40,639 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:21:40,639 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:21:40,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:21:40,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:21:40,640 INFO L87 Difference]: Start difference. First operand 354 states and 436 transitions. Second operand 3 states. [2019-11-07 04:21:40,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:21:40,674 INFO L93 Difference]: Finished difference Result 726 states and 942 transitions. [2019-11-07 04:21:40,674 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:21:40,675 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 129 [2019-11-07 04:21:40,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:21:40,679 INFO L225 Difference]: With dead ends: 726 [2019-11-07 04:21:40,679 INFO L226 Difference]: Without dead ends: 430 [2019-11-07 04:21:40,681 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 04:21:40,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2019-11-07 04:21:40,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 429. [2019-11-07 04:21:40,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 429 states. [2019-11-07 04:21:40,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 566 transitions. [2019-11-07 04:21:40,706 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 566 transitions. Word has length 129 [2019-11-07 04:21:40,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:21:40,707 INFO L462 AbstractCegarLoop]: Abstraction has 429 states and 566 transitions. [2019-11-07 04:21:40,707 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:21:40,707 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 566 transitions. [2019-11-07 04:21:40,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2019-11-07 04:21:40,711 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:21:40,711 INFO L410 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] [2019-11-07 04:21:40,712 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:21:40,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:21:40,712 INFO L82 PathProgramCache]: Analyzing trace with hash -24968700, now seen corresponding path program 1 times [2019-11-07 04:21:40,712 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:21:40,713 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851429134] [2019-11-07 04:21:40,713 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:21:40,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:21:41,366 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-11-07 04:21:41,367 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851429134] [2019-11-07 04:21:41,367 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:21:41,367 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-11-07 04:21:41,368 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64037996] [2019-11-07 04:21:41,369 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-11-07 04:21:41,369 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:21:41,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-11-07 04:21:41,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2019-11-07 04:21:41,372 INFO L87 Difference]: Start difference. First operand 429 states and 566 transitions. Second operand 19 states. [2019-11-07 04:21:48,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:21:48,528 INFO L93 Difference]: Finished difference Result 728 states and 897 transitions. [2019-11-07 04:21:48,529 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-11-07 04:21:48,529 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 132 [2019-11-07 04:21:48,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:21:48,533 INFO L225 Difference]: With dead ends: 728 [2019-11-07 04:21:48,534 INFO L226 Difference]: Without dead ends: 578 [2019-11-07 04:21:48,535 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=175, Invalid=1231, Unknown=0, NotChecked=0, Total=1406 [2019-11-07 04:21:48,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2019-11-07 04:21:48,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 571. [2019-11-07 04:21:48,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 571 states. [2019-11-07 04:21:48,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 723 transitions. [2019-11-07 04:21:48,573 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 723 transitions. Word has length 132 [2019-11-07 04:21:48,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:21:48,574 INFO L462 AbstractCegarLoop]: Abstraction has 571 states and 723 transitions. [2019-11-07 04:21:48,574 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-11-07 04:21:48,574 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 723 transitions. [2019-11-07 04:21:48,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2019-11-07 04:21:48,577 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:21:48,577 INFO L410 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] [2019-11-07 04:21:48,577 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:21:48,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:21:48,578 INFO L82 PathProgramCache]: Analyzing trace with hash -1293244106, now seen corresponding path program 1 times [2019-11-07 04:21:48,578 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:21:48,578 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260650349] [2019-11-07 04:21:48,578 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:21:48,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:21:49,026 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-11-07 04:21:49,026 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260650349] [2019-11-07 04:21:49,026 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:21:49,027 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2019-11-07 04:21:49,027 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800536604] [2019-11-07 04:21:49,028 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2019-11-07 04:21:49,028 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:21:49,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2019-11-07 04:21:49,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=373, Unknown=0, NotChecked=0, Total=420 [2019-11-07 04:21:49,029 INFO L87 Difference]: Start difference. First operand 571 states and 723 transitions. Second operand 21 states. [2019-11-07 04:21:50,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:21:50,477 INFO L93 Difference]: Finished difference Result 620 states and 774 transitions. [2019-11-07 04:21:50,478 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-11-07 04:21:50,478 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 138 [2019-11-07 04:21:50,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:21:50,482 INFO L225 Difference]: With dead ends: 620 [2019-11-07 04:21:50,483 INFO L226 Difference]: Without dead ends: 596 [2019-11-07 04:21:50,484 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=193, Invalid=1613, Unknown=0, NotChecked=0, Total=1806 [2019-11-07 04:21:50,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2019-11-07 04:21:50,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 591. [2019-11-07 04:21:50,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 591 states. [2019-11-07 04:21:50,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 742 transitions. [2019-11-07 04:21:50,521 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 742 transitions. Word has length 138 [2019-11-07 04:21:50,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:21:50,523 INFO L462 AbstractCegarLoop]: Abstraction has 591 states and 742 transitions. [2019-11-07 04:21:50,523 INFO L463 AbstractCegarLoop]: Interpolant automaton has 21 states. [2019-11-07 04:21:50,523 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 742 transitions. [2019-11-07 04:21:50,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2019-11-07 04:21:50,528 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:21:50,528 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:21:50,529 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:21:50,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:21:50,529 INFO L82 PathProgramCache]: Analyzing trace with hash -1983223466, now seen corresponding path program 1 times [2019-11-07 04:21:50,529 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:21:50,530 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833097713] [2019-11-07 04:21:50,530 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:21:50,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:21:50,755 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-11-07 04:21:50,756 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833097713] [2019-11-07 04:21:50,756 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:21:50,756 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-07 04:21:50,757 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094961884] [2019-11-07 04:21:50,757 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-07 04:21:50,758 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:21:50,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-07 04:21:50,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-11-07 04:21:50,758 INFO L87 Difference]: Start difference. First operand 591 states and 742 transitions. Second operand 8 states. [2019-11-07 04:21:50,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:21:50,844 INFO L93 Difference]: Finished difference Result 774 states and 931 transitions. [2019-11-07 04:21:50,844 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-07 04:21:50,845 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 218 [2019-11-07 04:21:50,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:21:50,853 INFO L225 Difference]: With dead ends: 774 [2019-11-07 04:21:50,853 INFO L226 Difference]: Without dead ends: 591 [2019-11-07 04:21:50,854 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 04:21:50,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2019-11-07 04:21:50,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 591. [2019-11-07 04:21:50,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 591 states. [2019-11-07 04:21:50,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 740 transitions. [2019-11-07 04:21:50,907 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 740 transitions. Word has length 218 [2019-11-07 04:21:50,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:21:50,911 INFO L462 AbstractCegarLoop]: Abstraction has 591 states and 740 transitions. [2019-11-07 04:21:50,911 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-07 04:21:50,911 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 740 transitions. [2019-11-07 04:21:50,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2019-11-07 04:21:50,921 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:21:50,921 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:21:50,922 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:21:50,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:21:50,923 INFO L82 PathProgramCache]: Analyzing trace with hash 1005750476, now seen corresponding path program 1 times [2019-11-07 04:21:50,924 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:21:50,926 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334579549] [2019-11-07 04:21:50,927 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:21:51,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:21:51,385 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2019-11-07 04:21:51,386 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334579549] [2019-11-07 04:21:51,386 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:21:51,386 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-11-07 04:21:51,387 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691152568] [2019-11-07 04:21:51,388 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-07 04:21:51,388 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:21:51,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-07 04:21:51,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2019-11-07 04:21:51,389 INFO L87 Difference]: Start difference. First operand 591 states and 740 transitions. Second operand 11 states. [2019-11-07 04:21:53,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:21:53,709 INFO L93 Difference]: Finished difference Result 738 states and 886 transitions. [2019-11-07 04:21:53,709 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-07 04:21:53,710 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 223 [2019-11-07 04:21:53,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:21:53,714 INFO L225 Difference]: With dead ends: 738 [2019-11-07 04:21:53,714 INFO L226 Difference]: Without dead ends: 615 [2019-11-07 04:21:53,716 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2019-11-07 04:21:53,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states. [2019-11-07 04:21:53,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 566. [2019-11-07 04:21:53,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 566 states. [2019-11-07 04:21:53,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 705 transitions. [2019-11-07 04:21:53,749 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 705 transitions. Word has length 223 [2019-11-07 04:21:53,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:21:53,749 INFO L462 AbstractCegarLoop]: Abstraction has 566 states and 705 transitions. [2019-11-07 04:21:53,750 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-07 04:21:53,750 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 705 transitions. [2019-11-07 04:21:53,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2019-11-07 04:21:53,754 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:21:53,755 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:21:53,755 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:21:53,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:21:53,756 INFO L82 PathProgramCache]: Analyzing trace with hash 427289385, now seen corresponding path program 1 times [2019-11-07 04:21:53,756 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:21:53,756 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102133966] [2019-11-07 04:21:53,756 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:21:53,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:21:55,014 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2019-11-07 04:21:55,014 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102133966] [2019-11-07 04:21:55,014 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1106176856] [2019-11-07 04:21:55,015 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 04:21:55,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:21:55,720 INFO L256 TraceCheckSpWp]: Trace formula consists of 2919 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-07 04:21:55,744 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 04:21:55,997 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2019-11-07 04:21:55,998 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 04:21:56,775 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2019-11-07 04:21:56,776 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1426629127] [2019-11-07 04:21:56,826 INFO L159 IcfgInterpreter]: Started Sifa with 192 locations of interest [2019-11-07 04:21:56,826 INFO L166 IcfgInterpreter]: Building call graph [2019-11-07 04:21:56,836 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-07 04:21:56,845 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-07 04:21:56,846 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs