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-f4eb214f-m [2019-10-13 23:09:58,995 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:09:58,997 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:09:59,010 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:09:59,010 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:09:59,012 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:09:59,013 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:09:59,015 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:09:59,017 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:09:59,018 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:09:59,019 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:09:59,020 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:09:59,020 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:09:59,021 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:09:59,022 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:09:59,023 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:09:59,024 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:09:59,025 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:09:59,027 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:09:59,029 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:09:59,031 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:09:59,032 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:09:59,033 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:09:59,034 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:09:59,036 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:09:59,037 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:09:59,037 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:09:59,040 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:09:59,041 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:09:59,043 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:09:59,044 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:09:59,045 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:09:59,047 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:09:59,048 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:09:59,051 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:09:59,052 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:09:59,053 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:09:59,053 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:09:59,053 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:09:59,055 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:09:59,059 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:09:59,060 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 23:09:59,082 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:09:59,083 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:09:59,085 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:09:59,085 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:09:59,085 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:09:59,086 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:09:59,086 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:09:59,086 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:09:59,086 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:09:59,086 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:09:59,087 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:09:59,088 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:09:59,088 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:09:59,089 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:09:59,089 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:09:59,089 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:09:59,089 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:09:59,090 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:09:59,090 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:09:59,090 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:09:59,090 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:09:59,091 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:09:59,091 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:09:59,091 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:09:59,091 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:09:59,091 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:09:59,092 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:09:59,092 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:09:59,092 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-13 23:09:59,395 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:09:59,408 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:09:59,412 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:09:59,414 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:09:59,414 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:09:59,415 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec4_product18.cil.c [2019-10-13 23:09:59,479 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7088758da/136c5cbc82154acd9c937bbb9e42ed81/FLAG56b80cca1 [2019-10-13 23:10:00,076 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:10:00,077 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec4_product18.cil.c [2019-10-13 23:10:00,105 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7088758da/136c5cbc82154acd9c937bbb9e42ed81/FLAG56b80cca1 [2019-10-13 23:10:00,271 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7088758da/136c5cbc82154acd9c937bbb9e42ed81 [2019-10-13 23:10:00,283 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:10:00,285 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:10:00,289 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:10:00,290 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:10:00,293 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:10:00,294 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:10:00" (1/1) ... [2019-10-13 23:10:00,297 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d4771d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:10:00, skipping insertion in model container [2019-10-13 23:10:00,298 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:10:00" (1/1) ... [2019-10-13 23:10:00,306 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:10:00,398 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:10:01,185 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:10:01,206 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:10:01,290 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:10:01,370 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:10:01,371 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:10:01 WrapperNode [2019-10-13 23:10:01,371 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:10:01,372 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:10:01,372 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:10:01,372 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:10:01,383 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:10:01" (1/1) ... [2019-10-13 23:10:01,383 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:10:01" (1/1) ... [2019-10-13 23:10:01,414 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:10:01" (1/1) ... [2019-10-13 23:10:01,415 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:10:01" (1/1) ... [2019-10-13 23:10:01,470 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:10:01" (1/1) ... [2019-10-13 23:10:01,499 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:10:01" (1/1) ... [2019-10-13 23:10:01,513 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:10:01" (1/1) ... [2019-10-13 23:10:01,550 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:10:01,554 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:10:01,554 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:10:01,555 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:10:01,556 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:10:01" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:10:01,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:10:01,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:10:01,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:10:01,646 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 23:10:01,646 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 23:10:01,647 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 23:10:01,648 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 23:10:01,648 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 23:10:01,648 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 23:10:01,649 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 23:10:01,649 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 23:10:01,650 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 23:10:01,650 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 23:10:01,651 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 23:10:01,651 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 23:10:01,651 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 23:10:01,654 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 23:10:01,654 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 23:10:01,654 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 23:10:01,654 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 23:10:01,655 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 23:10:01,655 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 23:10:01,655 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 23:10:01,656 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 23:10:01,656 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 23:10:01,656 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 23:10:01,656 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 23:10:01,657 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 23:10:01,657 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 23:10:01,657 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 23:10:01,658 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 23:10:01,658 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 23:10:01,658 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 23:10:01,658 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 23:10:01,659 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 23:10:01,659 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 23:10:01,661 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 23:10:01,661 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 23:10:01,661 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 23:10:01,661 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 23:10:01,661 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 23:10:01,662 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 23:10:01,662 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 23:10:01,662 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 23:10:01,662 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 23:10:01,662 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 23:10:01,663 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 23:10:01,663 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 23:10:01,663 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 23:10:01,663 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 23:10:01,663 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 23:10:01,663 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 23:10:01,664 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 23:10:01,664 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 23:10:01,664 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 23:10:01,664 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 23:10:01,664 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 23:10:01,664 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 23:10:01,665 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 23:10:01,665 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 23:10:01,666 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 23:10:01,666 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:10:01,666 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:10:01,666 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 23:10:01,667 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 23:10:01,667 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 23:10:01,667 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 23:10:01,667 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 23:10:01,667 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 23:10:01,667 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 23:10:01,668 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 23:10:01,668 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 23:10:01,668 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-13 23:10:01,669 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AutoResponder [2019-10-13 23:10:01,669 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-13 23:10:01,669 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 23:10:01,670 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 23:10:01,670 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 23:10:01,670 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 23:10:01,670 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:10:01,671 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:10:01,671 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:10:01,672 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:10:01,672 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:10:01,672 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:10:01,672 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:10:01,672 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:10:01,673 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:10:01,673 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:10:01,674 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:10:01,674 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignForward_spec__1 [2019-10-13 23:10:01,674 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 23:10:01,674 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-13 23:10:01,674 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 23:10:01,674 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 23:10:01,675 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Keys [2019-10-13 23:10:01,675 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-13 23:10:01,675 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 23:10:01,675 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 23:10:01,675 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 23:10:01,676 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 23:10:01,676 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 23:10:01,676 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 23:10:01,676 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 23:10:01,676 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 23:10:01,676 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 23:10:01,677 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-13 23:10:01,677 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-13 23:10:01,677 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-13 23:10:01,677 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:10:01,677 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 23:10:01,678 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:10:01,678 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:10:01,678 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 23:10:01,678 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 23:10:01,679 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 23:10:01,679 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 23:10:01,679 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 23:10:01,679 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 23:10:01,680 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 23:10:01,680 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 23:10:01,680 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 23:10:01,680 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 23:10:01,681 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 23:10:01,682 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 23:10:01,682 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 23:10:01,682 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 23:10:01,682 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 23:10:01,683 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 23:10:01,683 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 23:10:01,683 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 23:10:01,683 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 23:10:01,684 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 23:10:01,684 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 23:10:01,688 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 23:10:01,688 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 23:10:01,688 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 23:10:01,688 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 23:10:01,689 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 23:10:01,689 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 23:10:01,689 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 23:10:01,689 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 23:10:01,690 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 23:10:01,690 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 23:10:01,697 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 23:10:01,697 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 23:10:01,697 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 23:10:01,698 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 23:10:01,699 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 23:10:01,699 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 23:10:01,699 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 23:10:01,699 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 23:10:01,700 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 23:10:01,700 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 23:10:01,700 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 23:10:01,700 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 23:10:01,700 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 23:10:01,700 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 23:10:01,701 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 23:10:01,701 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 23:10:01,701 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 23:10:01,701 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 23:10:01,701 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 23:10:01,701 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:10:01,701 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 23:10:01,702 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:10:01,702 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:10:01,702 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:10:01,702 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 23:10:01,702 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 23:10:01,702 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 23:10:01,702 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 23:10:01,702 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 23:10:01,703 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 23:10:01,703 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 23:10:01,703 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 23:10:01,703 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 23:10:01,703 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 23:10:01,703 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 23:10:01,703 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:10:01,704 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:10:01,704 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:10:01,704 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 23:10:01,704 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 23:10:01,704 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 23:10:01,704 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 23:10:01,704 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 23:10:01,705 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 23:10:01,705 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 23:10:01,705 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 23:10:01,705 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 23:10:01,705 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-13 23:10:01,706 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 23:10:01,706 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 23:10:01,706 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 23:10:01,706 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:10:01,706 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 23:10:01,706 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 23:10:01,706 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 23:10:01,706 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 23:10:01,707 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AutoResponder [2019-10-13 23:10:01,707 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-13 23:10:01,707 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:10:01,707 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:10:01,707 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:10:01,707 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:10:01,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:10:01,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:10:01,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:10:01,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:10:01,708 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:10:01,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:10:01,708 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:10:01,708 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:10:01,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:10:01,709 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:10:01,709 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:10:01,709 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:10:01,709 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:10:01,709 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:10:01,709 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignForward_spec__1 [2019-10-13 23:10:01,709 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 23:10:01,709 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 23:10:01,710 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 23:10:01,710 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 23:10:01,710 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 23:10:01,710 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 23:10:01,710 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-13 23:10:01,710 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-13 23:10:01,710 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-13 23:10:01,710 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-13 23:10:01,711 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Keys [2019-10-13 23:10:01,711 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-13 23:10:01,711 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 23:10:01,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:10:01,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:10:01,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:10:06,069 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:10:06,070 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 23:10:06,071 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:10:06 BoogieIcfgContainer [2019-10-13 23:10:06,072 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:10:06,072 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:10:06,073 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:10:06,075 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:10:06,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:10:00" (1/3) ... [2019-10-13 23:10:06,076 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5269f285 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:10:06, skipping insertion in model container [2019-10-13 23:10:06,076 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:10:01" (2/3) ... [2019-10-13 23:10:06,076 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5269f285 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:10:06, skipping insertion in model container [2019-10-13 23:10:06,077 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:10:06" (3/3) ... [2019-10-13 23:10:06,078 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec4_product18.cil.c [2019-10-13 23:10:06,089 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:10:06,098 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:10:06,110 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:10:06,138 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:10:06,138 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:10:06,138 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:10:06,138 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:10:06,138 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:10:06,138 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:10:06,138 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:10:06,139 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:10:06,174 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states. [2019-10-13 23:10:06,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2019-10-13 23:10:06,204 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:10:06,205 INFO L380 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] [2019-10-13 23:10:06,207 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:10:06,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:10:06,214 INFO L82 PathProgramCache]: Analyzing trace with hash -1826903467, now seen corresponding path program 1 times [2019-10-13 23:10:06,223 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:10:06,223 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590511879] [2019-10-13 23:10:06,224 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:06,224 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:06,224 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:10:06,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:10:06,773 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-13 23:10:06,774 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590511879] [2019-10-13 23:10:06,775 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:10:06,775 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:10:06,776 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681740172] [2019-10-13 23:10:06,781 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:10:06,781 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:10:06,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:10:06,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:10:06,796 INFO L87 Difference]: Start difference. First operand 350 states. Second operand 2 states. [2019-10-13 23:10:06,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:10:06,855 INFO L93 Difference]: Finished difference Result 476 states and 555 transitions. [2019-10-13 23:10:06,855 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:10:06,857 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 118 [2019-10-13 23:10:06,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:10:06,878 INFO L225 Difference]: With dead ends: 476 [2019-10-13 23:10:06,879 INFO L226 Difference]: Without dead ends: 313 [2019-10-13 23:10:06,889 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:10:06,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2019-10-13 23:10:07,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 313. [2019-10-13 23:10:07,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 313 states. [2019-10-13 23:10:07,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 366 transitions. [2019-10-13 23:10:07,020 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 366 transitions. Word has length 118 [2019-10-13 23:10:07,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:10:07,023 INFO L462 AbstractCegarLoop]: Abstraction has 313 states and 366 transitions. [2019-10-13 23:10:07,023 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:10:07,023 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 366 transitions. [2019-10-13 23:10:07,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2019-10-13 23:10:07,028 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:10:07,028 INFO L380 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] [2019-10-13 23:10:07,029 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:10:07,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:10:07,029 INFO L82 PathProgramCache]: Analyzing trace with hash -488779353, now seen corresponding path program 1 times [2019-10-13 23:10:07,029 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:10:07,030 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224022363] [2019-10-13 23:10:07,030 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:07,030 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:07,030 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:10:07,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:10:07,346 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-13 23:10:07,347 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224022363] [2019-10-13 23:10:07,347 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:10:07,347 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:10:07,347 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710578489] [2019-10-13 23:10:07,353 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:10:07,353 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:10:07,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:10:07,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:10:07,354 INFO L87 Difference]: Start difference. First operand 313 states and 366 transitions. Second operand 3 states. [2019-10-13 23:10:07,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:10:07,430 INFO L93 Difference]: Finished difference Result 461 states and 527 transitions. [2019-10-13 23:10:07,432 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:10:07,432 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 119 [2019-10-13 23:10:07,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:10:07,443 INFO L225 Difference]: With dead ends: 461 [2019-10-13 23:10:07,444 INFO L226 Difference]: Without dead ends: 315 [2019-10-13 23:10:07,449 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:10:07,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2019-10-13 23:10:07,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 315. [2019-10-13 23:10:07,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 315 states. [2019-10-13 23:10:07,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 368 transitions. [2019-10-13 23:10:07,490 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 368 transitions. Word has length 119 [2019-10-13 23:10:07,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:10:07,491 INFO L462 AbstractCegarLoop]: Abstraction has 315 states and 368 transitions. [2019-10-13 23:10:07,491 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:10:07,491 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 368 transitions. [2019-10-13 23:10:07,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2019-10-13 23:10:07,494 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:10:07,495 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:10:07,495 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:10:07,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:10:07,497 INFO L82 PathProgramCache]: Analyzing trace with hash -1990736762, now seen corresponding path program 1 times [2019-10-13 23:10:07,498 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:10:07,498 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539357062] [2019-10-13 23:10:07,498 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:07,498 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:07,498 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:10:07,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:10:07,760 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-13 23:10:07,760 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539357062] [2019-10-13 23:10:07,760 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:10:07,761 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:10:07,761 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786387513] [2019-10-13 23:10:07,763 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:10:07,763 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:10:07,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:10:07,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:10:07,764 INFO L87 Difference]: Start difference. First operand 315 states and 368 transitions. Second operand 3 states. [2019-10-13 23:10:07,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:10:07,814 INFO L93 Difference]: Finished difference Result 612 states and 743 transitions. [2019-10-13 23:10:07,814 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:10:07,815 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 128 [2019-10-13 23:10:07,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:10:07,820 INFO L225 Difference]: With dead ends: 612 [2019-10-13 23:10:07,821 INFO L226 Difference]: Without dead ends: 355 [2019-10-13 23:10:07,829 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:10:07,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2019-10-13 23:10:07,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 354. [2019-10-13 23:10:07,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 354 states. [2019-10-13 23:10:07,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 436 transitions. [2019-10-13 23:10:07,859 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 436 transitions. Word has length 128 [2019-10-13 23:10:07,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:10:07,860 INFO L462 AbstractCegarLoop]: Abstraction has 354 states and 436 transitions. [2019-10-13 23:10:07,860 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:10:07,860 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 436 transitions. [2019-10-13 23:10:07,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2019-10-13 23:10:07,864 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:10:07,865 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:10:07,865 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:10:07,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:10:07,866 INFO L82 PathProgramCache]: Analyzing trace with hash -834547700, now seen corresponding path program 1 times [2019-10-13 23:10:07,866 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:10:07,866 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132745321] [2019-10-13 23:10:07,866 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:07,866 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:07,867 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:10:07,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:10:08,033 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-13 23:10:08,033 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132745321] [2019-10-13 23:10:08,034 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:10:08,034 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:10:08,034 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224117348] [2019-10-13 23:10:08,035 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:10:08,035 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:10:08,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:10:08,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:10:08,036 INFO L87 Difference]: Start difference. First operand 354 states and 436 transitions. Second operand 3 states. [2019-10-13 23:10:08,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:10:08,066 INFO L93 Difference]: Finished difference Result 726 states and 942 transitions. [2019-10-13 23:10:08,067 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:10:08,067 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 129 [2019-10-13 23:10:08,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:10:08,071 INFO L225 Difference]: With dead ends: 726 [2019-10-13 23:10:08,071 INFO L226 Difference]: Without dead ends: 430 [2019-10-13 23:10:08,072 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:10:08,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2019-10-13 23:10:08,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 429. [2019-10-13 23:10:08,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 429 states. [2019-10-13 23:10:08,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 566 transitions. [2019-10-13 23:10:08,096 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 566 transitions. Word has length 129 [2019-10-13 23:10:08,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:10:08,097 INFO L462 AbstractCegarLoop]: Abstraction has 429 states and 566 transitions. [2019-10-13 23:10:08,097 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:10:08,097 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 566 transitions. [2019-10-13 23:10:08,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2019-10-13 23:10:08,100 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:10:08,101 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:10:08,101 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:10:08,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:10:08,101 INFO L82 PathProgramCache]: Analyzing trace with hash -24968700, now seen corresponding path program 1 times [2019-10-13 23:10:08,102 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:10:08,102 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29566130] [2019-10-13 23:10:08,102 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:08,102 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:08,102 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:10:08,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:10:08,626 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 23:10:08,627 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29566130] [2019-10-13 23:10:08,627 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:10:08,627 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-10-13 23:10:08,627 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888988052] [2019-10-13 23:10:08,628 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-10-13 23:10:08,629 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:10:08,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-10-13 23:10:08,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2019-10-13 23:10:08,630 INFO L87 Difference]: Start difference. First operand 429 states and 566 transitions. Second operand 19 states. [2019-10-13 23:10:14,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:10:14,393 INFO L93 Difference]: Finished difference Result 728 states and 897 transitions. [2019-10-13 23:10:14,394 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-10-13 23:10:14,394 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 132 [2019-10-13 23:10:14,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:10:14,400 INFO L225 Difference]: With dead ends: 728 [2019-10-13 23:10:14,401 INFO L226 Difference]: Without dead ends: 578 [2019-10-13 23:10:14,403 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=175, Invalid=1231, Unknown=0, NotChecked=0, Total=1406 [2019-10-13 23:10:14,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2019-10-13 23:10:14,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 571. [2019-10-13 23:10:14,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 571 states. [2019-10-13 23:10:14,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 723 transitions. [2019-10-13 23:10:14,459 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 723 transitions. Word has length 132 [2019-10-13 23:10:14,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:10:14,462 INFO L462 AbstractCegarLoop]: Abstraction has 571 states and 723 transitions. [2019-10-13 23:10:14,462 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-10-13 23:10:14,462 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 723 transitions. [2019-10-13 23:10:14,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2019-10-13 23:10:14,467 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:10:14,467 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:10:14,467 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:10:14,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:10:14,468 INFO L82 PathProgramCache]: Analyzing trace with hash -1293244106, now seen corresponding path program 1 times [2019-10-13 23:10:14,468 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:10:14,468 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914500547] [2019-10-13 23:10:14,469 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:14,469 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:14,469 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:10:14,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:10:14,979 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 23:10:14,979 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914500547] [2019-10-13 23:10:14,980 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:10:14,981 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2019-10-13 23:10:14,981 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168778195] [2019-10-13 23:10:14,982 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2019-10-13 23:10:14,982 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:10:14,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2019-10-13 23:10:14,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=373, Unknown=0, NotChecked=0, Total=420 [2019-10-13 23:10:14,983 INFO L87 Difference]: Start difference. First operand 571 states and 723 transitions. Second operand 21 states. [2019-10-13 23:10:16,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:10:16,512 INFO L93 Difference]: Finished difference Result 620 states and 774 transitions. [2019-10-13 23:10:16,512 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-10-13 23:10:16,513 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 138 [2019-10-13 23:10:16,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:10:16,516 INFO L225 Difference]: With dead ends: 620 [2019-10-13 23:10:16,517 INFO L226 Difference]: Without dead ends: 596 [2019-10-13 23:10:16,518 INFO L600 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 [2019-10-13 23:10:16,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2019-10-13 23:10:16,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 591. [2019-10-13 23:10:16,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 591 states. [2019-10-13 23:10:16,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 742 transitions. [2019-10-13 23:10:16,558 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 742 transitions. Word has length 138 [2019-10-13 23:10:16,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:10:16,560 INFO L462 AbstractCegarLoop]: Abstraction has 591 states and 742 transitions. [2019-10-13 23:10:16,560 INFO L463 AbstractCegarLoop]: Interpolant automaton has 21 states. [2019-10-13 23:10:16,560 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 742 transitions. [2019-10-13 23:10:16,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2019-10-13 23:10:16,565 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:10:16,565 INFO L380 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] [2019-10-13 23:10:16,566 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:10:16,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:10:16,566 INFO L82 PathProgramCache]: Analyzing trace with hash -1983223466, now seen corresponding path program 1 times [2019-10-13 23:10:16,566 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:10:16,567 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174582879] [2019-10-13 23:10:16,567 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:16,567 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:16,567 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:10:16,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:10:16,787 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-13 23:10:16,788 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174582879] [2019-10-13 23:10:16,788 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:10:16,788 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 23:10:16,789 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310260576] [2019-10-13 23:10:16,789 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 23:10:16,789 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:10:16,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 23:10:16,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-13 23:10:16,790 INFO L87 Difference]: Start difference. First operand 591 states and 742 transitions. Second operand 8 states. [2019-10-13 23:10:16,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:10:16,843 INFO L93 Difference]: Finished difference Result 774 states and 931 transitions. [2019-10-13 23:10:16,844 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 23:10:16,844 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 218 [2019-10-13 23:10:16,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:10:16,849 INFO L225 Difference]: With dead ends: 774 [2019-10-13 23:10:16,849 INFO L226 Difference]: Without dead ends: 591 [2019-10-13 23:10:16,850 INFO L600 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 [2019-10-13 23:10:16,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2019-10-13 23:10:16,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 591. [2019-10-13 23:10:16,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 591 states. [2019-10-13 23:10:16,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 740 transitions. [2019-10-13 23:10:16,888 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 740 transitions. Word has length 218 [2019-10-13 23:10:16,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:10:16,888 INFO L462 AbstractCegarLoop]: Abstraction has 591 states and 740 transitions. [2019-10-13 23:10:16,888 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 23:10:16,889 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 740 transitions. [2019-10-13 23:10:16,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2019-10-13 23:10:16,894 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:10:16,894 INFO L380 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] [2019-10-13 23:10:16,894 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:10:16,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:10:16,895 INFO L82 PathProgramCache]: Analyzing trace with hash 1005750476, now seen corresponding path program 1 times [2019-10-13 23:10:16,895 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:10:16,895 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119164235] [2019-10-13 23:10:16,895 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:16,896 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:16,896 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:10:16,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:10:17,386 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2019-10-13 23:10:17,386 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119164235] [2019-10-13 23:10:17,387 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:10:17,387 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-13 23:10:17,387 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755032988] [2019-10-13 23:10:17,388 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 23:10:17,388 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:10:17,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 23:10:17,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2019-10-13 23:10:17,389 INFO L87 Difference]: Start difference. First operand 591 states and 740 transitions. Second operand 11 states. [2019-10-13 23:10:19,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:10:19,522 INFO L93 Difference]: Finished difference Result 738 states and 886 transitions. [2019-10-13 23:10:19,522 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-13 23:10:19,522 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 223 [2019-10-13 23:10:19,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:10:19,529 INFO L225 Difference]: With dead ends: 738 [2019-10-13 23:10:19,530 INFO L226 Difference]: Without dead ends: 615 [2019-10-13 23:10:19,531 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2019-10-13 23:10:19,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states. [2019-10-13 23:10:19,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 566. [2019-10-13 23:10:19,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 566 states. [2019-10-13 23:10:19,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 705 transitions. [2019-10-13 23:10:19,569 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 705 transitions. Word has length 223 [2019-10-13 23:10:19,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:10:19,570 INFO L462 AbstractCegarLoop]: Abstraction has 566 states and 705 transitions. [2019-10-13 23:10:19,570 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-13 23:10:19,571 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 705 transitions. [2019-10-13 23:10:19,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2019-10-13 23:10:19,574 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:10:19,575 INFO L380 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] [2019-10-13 23:10:19,575 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:10:19,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:10:19,575 INFO L82 PathProgramCache]: Analyzing trace with hash 427289385, now seen corresponding path program 1 times [2019-10-13 23:10:19,575 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:10:19,576 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337480025] [2019-10-13 23:10:19,576 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:19,576 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:19,576 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:10:19,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:10:20,734 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2019-10-13 23:10:20,735 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337480025] [2019-10-13 23:10:20,735 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [146520573] [2019-10-13 23:10:20,736 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:10:21,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:10:21,303 INFO L256 TraceCheckSpWp]: Trace formula consists of 2919 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-13 23:10:21,323 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:10:21,515 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2019-10-13 23:10:21,516 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:10:22,169 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2019-10-13 23:10:22,170 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1207533311] [2019-10-13 23:10:22,205 INFO L162 IcfgInterpreter]: Started Sifa with 192 locations of interest [2019-10-13 23:10:22,205 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 23:10:22,213 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 23:10:22,221 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 23:10:22,221 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs