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 --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/product-lines/email_spec0_product26.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 21:12:55,039 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:12:55,041 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:12:55,053 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:12:55,053 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:12:55,054 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:12:55,056 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:12:55,057 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:12:55,059 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:12:55,060 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:12:55,061 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:12:55,062 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:12:55,062 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:12:55,063 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:12:55,064 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:12:55,067 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:12:55,068 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:12:55,069 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:12:55,072 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:12:55,075 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:12:55,078 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:12:55,080 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:12:55,082 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:12:55,084 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:12:55,088 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 21:12:55,088 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 21:12:55,088 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 21:12:55,089 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 21:12:55,089 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 21:12:55,090 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 21:12:55,091 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 21:12:55,091 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 21:12:55,092 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 21:12:55,094 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 21:12:55,097 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 21:12:55,098 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 21:12:55,099 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 21:12:55,099 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 21:12:55,099 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:12:55,100 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:12:55,103 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:12:55,103 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 21:12:55,123 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:12:55,123 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:12:55,125 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:12:55,125 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:12:55,126 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:12:55,126 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:12:55,126 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:12:55,126 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:12:55,126 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:12:55,126 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:12:55,127 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:12:55,128 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:12:55,128 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:12:55,128 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:12:55,128 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:12:55,129 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:12:55,129 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:12:55,129 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:12:55,129 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:12:55,129 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:12:55,130 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:12:55,130 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:12:55,130 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:12:55,130 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:12:55,130 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:12:55,130 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:12:55,131 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:12:55,131 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:12:55,131 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-13 21:12:55,465 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:12:55,487 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:12:55,491 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:12:55,493 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:12:55,494 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:12:55,495 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec0_product26.cil.c [2019-10-13 21:12:55,572 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0fb147aa5/f80857210166452993e6d4e108833f31/FLAGf4869b516 [2019-10-13 21:12:56,239 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:12:56,240 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec0_product26.cil.c [2019-10-13 21:12:56,269 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0fb147aa5/f80857210166452993e6d4e108833f31/FLAGf4869b516 [2019-10-13 21:12:56,480 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0fb147aa5/f80857210166452993e6d4e108833f31 [2019-10-13 21:12:56,491 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:12:56,492 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:12:56,496 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:12:56,496 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:12:56,500 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:12:56,501 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:12:56" (1/1) ... [2019-10-13 21:12:56,506 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13fff8a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:12:56, skipping insertion in model container [2019-10-13 21:12:56,506 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:12:56" (1/1) ... [2019-10-13 21:12:56,513 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:12:56,597 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:12:57,427 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:12:57,448 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:12:57,552 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:12:57,687 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:12:57,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:12:57 WrapperNode [2019-10-13 21:12:57,689 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:12:57,690 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:12:57,690 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:12:57,691 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:12:57,707 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:12:57" (1/1) ... [2019-10-13 21:12:57,708 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:12:57" (1/1) ... [2019-10-13 21:12:57,770 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:12:57" (1/1) ... [2019-10-13 21:12:57,771 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:12:57" (1/1) ... [2019-10-13 21:12:57,830 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:12:57" (1/1) ... [2019-10-13 21:12:57,869 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:12:57" (1/1) ... [2019-10-13 21:12:57,893 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:12:57" (1/1) ... [2019-10-13 21:12:57,917 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:12:57,918 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:12:57,918 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:12:57,919 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:12:57,920 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:12:57" (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 21:12:57,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:12:57,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:12:57,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 21:12:57,996 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 21:12:57,996 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 21:12:57,996 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-13 21:12:57,997 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 21:12:57,997 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 21:12:57,997 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-13 21:12:57,997 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AddressBook [2019-10-13 21:12:57,998 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-13 21:12:57,998 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 21:12:57,998 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 21:12:57,998 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 21:12:57,998 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 21:12:57,999 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 21:12:57,999 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 21:12:57,999 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 21:12:57,999 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 21:12:58,000 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 21:12:58,001 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-13 21:12:58,001 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-13 21:12:58,001 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-13 21:12:58,001 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 21:12:58,001 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 21:12:58,001 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 21:12:58,002 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 21:12:58,002 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 21:12:58,002 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 21:12:58,002 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 21:12:58,002 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 21:12:58,002 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 21:12:58,003 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 21:12:58,003 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 21:12:58,003 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 21:12:58,003 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 21:12:58,003 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 21:12:58,003 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 21:12:58,004 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 21:12:58,004 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 21:12:58,004 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 21:12:58,004 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 21:12:58,004 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 21:12:58,004 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 21:12:58,004 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 21:12:58,005 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 21:12:58,005 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 21:12:58,005 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 21:12:58,005 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 21:12:58,005 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 21:12:58,005 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 21:12:58,005 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 21:12:58,006 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 21:12:58,006 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:12:58,006 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 21:12:58,006 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 21:12:58,006 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 21:12:58,006 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 21:12:58,006 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 21:12:58,007 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 21:12:58,007 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 21:12:58,007 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 21:12:58,007 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 21:12:58,007 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-13 21:12:58,007 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-13 21:12:58,008 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-13 21:12:58,008 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 21:12:58,008 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 21:12:58,008 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 21:12:58,008 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 21:12:58,008 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 21:12:58,009 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 21:12:58,009 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 21:12:58,009 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 21:12:58,009 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 21:12:58,009 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 21:12:58,009 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 21:12:58,009 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 21:12:58,010 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 21:12:58,010 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 21:12:58,010 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 21:12:58,010 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 21:12:58,010 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 21:12:58,010 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 21:12:58,011 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 21:12:58,011 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 21:12:58,011 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 21:12:58,011 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 21:12:58,011 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 21:12:58,011 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 21:12:58,012 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 21:12:58,012 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 21:12:58,012 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 21:12:58,012 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 21:12:58,012 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 21:12:58,012 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 21:12:58,013 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 21:12:58,013 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 21:12:58,013 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 21:12:58,013 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 21:12:58,013 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 21:12:58,013 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 21:12:58,013 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 21:12:58,014 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 21:12:58,014 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 21:12:58,014 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 21:12:58,014 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptForward_spec__1 [2019-10-13 21:12:58,014 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 21:12:58,014 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 21:12:58,015 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 21:12:58,015 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 21:12:58,015 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 21:12:58,015 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 21:12:58,015 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 21:12:58,015 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 21:12:58,016 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:12:58,016 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 21:12:58,016 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 21:12:58,016 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 21:12:58,016 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 21:12:58,016 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 21:12:58,016 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 21:12:58,017 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 21:12:58,017 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 21:12:58,017 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 21:12:58,017 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 21:12:58,017 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 21:12:58,017 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 21:12:58,017 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 21:12:58,018 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 21:12:58,018 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 21:12:58,018 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 21:12:58,018 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 21:12:58,018 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 21:12:58,018 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 21:12:58,019 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 21:12:58,019 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 21:12:58,019 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 21:12:58,019 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 21:12:58,019 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 21:12:58,019 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 21:12:58,020 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 21:12:58,020 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 21:12:58,020 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 21:12:58,020 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 21:12:58,020 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 21:12:58,020 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 21:12:58,020 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 21:12:58,021 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 21:12:58,021 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 21:12:58,021 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-13 21:12:58,021 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-13 21:12:58,021 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-13 21:12:58,021 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 21:12:58,022 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 21:12:58,022 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-13 21:12:58,022 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-13 21:12:58,022 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AddressBook [2019-10-13 21:12:58,022 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-13 21:12:58,022 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptForward_spec__1 [2019-10-13 21:12:58,022 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 21:12:58,022 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 21:12:58,023 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 21:12:58,023 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 21:12:58,023 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 21:12:58,023 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 21:12:58,023 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 21:12:58,023 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 21:12:58,023 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 21:12:58,024 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 21:12:58,024 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 21:12:58,024 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 21:12:58,024 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 21:12:58,024 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 21:12:58,024 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 21:12:58,024 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 21:12:58,025 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 21:12:58,025 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 21:12:58,025 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 21:12:58,025 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 21:12:58,025 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 21:12:58,025 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 21:12:58,025 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 21:12:58,026 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 21:12:58,026 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 21:12:58,026 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 21:12:58,026 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 21:12:58,026 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 21:12:58,026 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 21:12:58,027 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 21:12:58,027 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 21:12:58,027 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 21:12:58,027 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 21:12:58,027 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 21:12:58,027 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:12:58,027 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 21:12:58,028 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 21:12:58,028 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 21:12:58,028 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 21:12:58,028 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 21:12:58,028 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 21:12:58,028 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 21:12:58,028 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 21:12:58,029 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 21:12:58,029 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-13 21:12:58,029 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-13 21:12:58,029 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-13 21:12:58,029 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 21:12:58,029 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 21:12:58,030 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 21:12:58,030 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 21:12:58,030 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 21:12:58,030 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 21:12:58,030 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 21:12:58,030 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 21:12:58,031 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 21:12:58,031 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 21:12:58,031 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 21:12:58,031 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 21:12:58,031 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 21:12:58,032 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 21:12:58,032 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 21:12:58,032 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 21:12:58,032 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 21:12:58,032 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 21:12:58,032 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 21:12:58,033 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 21:12:58,033 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 21:12:58,033 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 21:12:58,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 21:12:58,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 21:12:58,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 21:12:58,034 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 21:12:58,034 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 21:12:58,034 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 21:12:58,034 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 21:12:58,034 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 21:12:58,034 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 21:12:58,035 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 21:12:58,035 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 21:12:58,035 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 21:12:58,035 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 21:12:58,035 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:12:58,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 21:12:58,035 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:13:00,407 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:13:00,407 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 21:13:00,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:13:00 BoogieIcfgContainer [2019-10-13 21:13:00,409 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:13:00,411 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:13:00,411 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:13:00,415 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:13:00,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:12:56" (1/3) ... [2019-10-13 21:13:00,416 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f7206f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:13:00, skipping insertion in model container [2019-10-13 21:13:00,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:12:57" (2/3) ... [2019-10-13 21:13:00,417 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f7206f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:13:00, skipping insertion in model container [2019-10-13 21:13:00,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:13:00" (3/3) ... [2019-10-13 21:13:00,419 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec0_product26.cil.c [2019-10-13 21:13:00,429 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:13:00,442 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:13:00,454 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:13:00,496 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:13:00,496 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:13:00,496 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:13:00,496 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:13:00,499 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:13:00,500 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:13:00,500 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:13:00,500 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:13:00,542 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states. [2019-10-13 21:13:00,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2019-10-13 21:13:00,578 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:00,587 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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, 1, 1, 1] [2019-10-13 21:13:00,590 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:00,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:00,597 INFO L82 PathProgramCache]: Analyzing trace with hash 1050293999, now seen corresponding path program 1 times [2019-10-13 21:13:00,607 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:00,608 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253002083] [2019-10-13 21:13:00,608 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:00,608 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:00,609 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:00,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:01,286 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-13 21:13:01,287 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253002083] [2019-10-13 21:13:01,288 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:01,289 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 21:13:01,289 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303309072] [2019-10-13 21:13:01,294 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 21:13:01,296 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:01,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 21:13:01,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:13:01,314 INFO L87 Difference]: Start difference. First operand 598 states. Second operand 2 states. [2019-10-13 21:13:01,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:01,432 INFO L93 Difference]: Finished difference Result 871 states and 1181 transitions. [2019-10-13 21:13:01,432 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 21:13:01,434 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 209 [2019-10-13 21:13:01,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:01,474 INFO L225 Difference]: With dead ends: 871 [2019-10-13 21:13:01,474 INFO L226 Difference]: Without dead ends: 569 [2019-10-13 21:13:01,489 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 21:13:01,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2019-10-13 21:13:01,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 569. [2019-10-13 21:13:01,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 569 states. [2019-10-13 21:13:01,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 569 states and 775 transitions. [2019-10-13 21:13:01,602 INFO L78 Accepts]: Start accepts. Automaton has 569 states and 775 transitions. Word has length 209 [2019-10-13 21:13:01,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:01,604 INFO L462 AbstractCegarLoop]: Abstraction has 569 states and 775 transitions. [2019-10-13 21:13:01,604 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 21:13:01,604 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 775 transitions. [2019-10-13 21:13:01,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2019-10-13 21:13:01,611 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:01,611 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1] [2019-10-13 21:13:01,612 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:01,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:01,612 INFO L82 PathProgramCache]: Analyzing trace with hash 1566712798, now seen corresponding path program 1 times [2019-10-13 21:13:01,613 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:01,613 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319934807] [2019-10-13 21:13:01,613 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:01,613 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:01,613 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:01,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:01,959 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-13 21:13:01,959 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319934807] [2019-10-13 21:13:01,959 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:01,960 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:13:01,960 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969555892] [2019-10-13 21:13:01,962 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:13:01,962 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:01,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:13:01,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:13:01,963 INFO L87 Difference]: Start difference. First operand 569 states and 775 transitions. Second operand 3 states. [2019-10-13 21:13:02,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:02,020 INFO L93 Difference]: Finished difference Result 854 states and 1144 transitions. [2019-10-13 21:13:02,020 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:13:02,020 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 210 [2019-10-13 21:13:02,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:02,026 INFO L225 Difference]: With dead ends: 854 [2019-10-13 21:13:02,026 INFO L226 Difference]: Without dead ends: 572 [2019-10-13 21:13:02,028 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 21:13:02,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2019-10-13 21:13:02,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 571. [2019-10-13 21:13:02,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 571 states. [2019-10-13 21:13:02,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 777 transitions. [2019-10-13 21:13:02,076 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 777 transitions. Word has length 210 [2019-10-13 21:13:02,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:02,079 INFO L462 AbstractCegarLoop]: Abstraction has 571 states and 777 transitions. [2019-10-13 21:13:02,079 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:13:02,079 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 777 transitions. [2019-10-13 21:13:02,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2019-10-13 21:13:02,087 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:02,087 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:13:02,087 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:02,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:02,088 INFO L82 PathProgramCache]: Analyzing trace with hash 641729421, now seen corresponding path program 1 times [2019-10-13 21:13:02,088 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:02,088 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905972597] [2019-10-13 21:13:02,088 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:02,089 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:02,089 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:02,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:02,311 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-13 21:13:02,312 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905972597] [2019-10-13 21:13:02,312 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:02,312 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:13:02,313 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791654536] [2019-10-13 21:13:02,314 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:13:02,314 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:02,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:13:02,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:13:02,315 INFO L87 Difference]: Start difference. First operand 571 states and 777 transitions. Second operand 3 states. [2019-10-13 21:13:02,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:02,355 INFO L93 Difference]: Finished difference Result 1122 states and 1558 transitions. [2019-10-13 21:13:02,356 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:13:02,356 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 222 [2019-10-13 21:13:02,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:02,362 INFO L225 Difference]: With dead ends: 1122 [2019-10-13 21:13:02,362 INFO L226 Difference]: Without dead ends: 616 [2019-10-13 21:13:02,365 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 21:13:02,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2019-10-13 21:13:02,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 615. [2019-10-13 21:13:02,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 615 states. [2019-10-13 21:13:02,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 852 transitions. [2019-10-13 21:13:02,401 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 852 transitions. Word has length 222 [2019-10-13 21:13:02,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:02,402 INFO L462 AbstractCegarLoop]: Abstraction has 615 states and 852 transitions. [2019-10-13 21:13:02,402 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:13:02,402 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 852 transitions. [2019-10-13 21:13:02,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2019-10-13 21:13:02,409 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:02,410 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:13:02,410 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:02,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:02,411 INFO L82 PathProgramCache]: Analyzing trace with hash -1183894692, now seen corresponding path program 1 times [2019-10-13 21:13:02,411 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:02,411 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662650329] [2019-10-13 21:13:02,411 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:02,412 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:02,412 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:02,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:02,787 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-13 21:13:02,790 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662650329] [2019-10-13 21:13:02,790 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:02,791 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:13:02,791 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271398571] [2019-10-13 21:13:02,792 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:13:02,793 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:02,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:13:02,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:13:02,794 INFO L87 Difference]: Start difference. First operand 615 states and 852 transitions. Second operand 3 states. [2019-10-13 21:13:02,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:02,856 INFO L93 Difference]: Finished difference Result 1251 states and 1778 transitions. [2019-10-13 21:13:02,857 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:13:02,857 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 223 [2019-10-13 21:13:02,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:02,867 INFO L225 Difference]: With dead ends: 1251 [2019-10-13 21:13:02,867 INFO L226 Difference]: Without dead ends: 701 [2019-10-13 21:13:02,870 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 21:13:02,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 701 states. [2019-10-13 21:13:02,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 701 to 700. [2019-10-13 21:13:02,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 700 states. [2019-10-13 21:13:02,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700 states to 700 states and 996 transitions. [2019-10-13 21:13:02,919 INFO L78 Accepts]: Start accepts. Automaton has 700 states and 996 transitions. Word has length 223 [2019-10-13 21:13:02,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:02,920 INFO L462 AbstractCegarLoop]: Abstraction has 700 states and 996 transitions. [2019-10-13 21:13:02,920 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:13:02,920 INFO L276 IsEmpty]: Start isEmpty. Operand 700 states and 996 transitions. [2019-10-13 21:13:02,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2019-10-13 21:13:02,926 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:02,927 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:13:02,927 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:02,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:02,928 INFO L82 PathProgramCache]: Analyzing trace with hash -577752831, now seen corresponding path program 1 times [2019-10-13 21:13:02,928 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:02,929 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37164391] [2019-10-13 21:13:02,930 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:02,930 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:02,930 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:03,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:03,550 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:13:03,550 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37164391] [2019-10-13 21:13:03,551 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:03,551 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-10-13 21:13:03,551 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679678711] [2019-10-13 21:13:03,552 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-10-13 21:13:03,553 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:03,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-10-13 21:13:03,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2019-10-13 21:13:03,554 INFO L87 Difference]: Start difference. First operand 700 states and 996 transitions. Second operand 19 states. [2019-10-13 21:13:08,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:08,894 INFO L93 Difference]: Finished difference Result 2240 states and 3191 transitions. [2019-10-13 21:13:08,895 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2019-10-13 21:13:08,895 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 226 [2019-10-13 21:13:08,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:08,913 INFO L225 Difference]: With dead ends: 2240 [2019-10-13 21:13:08,913 INFO L226 Difference]: Without dead ends: 1971 [2019-10-13 21:13:08,916 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 707 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=287, Invalid=2683, Unknown=0, NotChecked=0, Total=2970 [2019-10-13 21:13:08,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1971 states. [2019-10-13 21:13:09,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1971 to 1934. [2019-10-13 21:13:09,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1934 states. [2019-10-13 21:13:09,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1934 states to 1934 states and 2772 transitions. [2019-10-13 21:13:09,067 INFO L78 Accepts]: Start accepts. Automaton has 1934 states and 2772 transitions. Word has length 226 [2019-10-13 21:13:09,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:09,069 INFO L462 AbstractCegarLoop]: Abstraction has 1934 states and 2772 transitions. [2019-10-13 21:13:09,069 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-10-13 21:13:09,069 INFO L276 IsEmpty]: Start isEmpty. Operand 1934 states and 2772 transitions. [2019-10-13 21:13:09,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2019-10-13 21:13:09,081 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:09,082 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:13:09,082 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:09,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:09,082 INFO L82 PathProgramCache]: Analyzing trace with hash 893920590, now seen corresponding path program 1 times [2019-10-13 21:13:09,083 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:09,083 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841571924] [2019-10-13 21:13:09,083 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:09,083 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:09,083 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:09,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:09,397 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:13:09,398 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841571924] [2019-10-13 21:13:09,399 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:09,399 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-13 21:13:09,399 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011578147] [2019-10-13 21:13:09,400 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 21:13:09,400 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:09,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 21:13:09,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-10-13 21:13:09,401 INFO L87 Difference]: Start difference. First operand 1934 states and 2772 transitions. Second operand 11 states. [2019-10-13 21:13:10,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:10,032 INFO L93 Difference]: Finished difference Result 3191 states and 4529 transitions. [2019-10-13 21:13:10,033 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-13 21:13:10,033 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 227 [2019-10-13 21:13:10,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:10,047 INFO L225 Difference]: With dead ends: 3191 [2019-10-13 21:13:10,047 INFO L226 Difference]: Without dead ends: 2056 [2019-10-13 21:13:10,051 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2019-10-13 21:13:10,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2056 states. [2019-10-13 21:13:10,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2056 to 2056. [2019-10-13 21:13:10,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2056 states. [2019-10-13 21:13:10,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2056 states to 2056 states and 2969 transitions. [2019-10-13 21:13:10,182 INFO L78 Accepts]: Start accepts. Automaton has 2056 states and 2969 transitions. Word has length 227 [2019-10-13 21:13:10,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:10,182 INFO L462 AbstractCegarLoop]: Abstraction has 2056 states and 2969 transitions. [2019-10-13 21:13:10,182 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-13 21:13:10,183 INFO L276 IsEmpty]: Start isEmpty. Operand 2056 states and 2969 transitions. [2019-10-13 21:13:10,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2019-10-13 21:13:10,193 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:10,194 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:13:10,194 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:10,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:10,195 INFO L82 PathProgramCache]: Analyzing trace with hash -1022222007, now seen corresponding path program 1 times [2019-10-13 21:13:10,195 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:10,195 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624376335] [2019-10-13 21:13:10,195 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:10,195 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:10,196 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:10,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:10,541 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:13:10,541 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624376335] [2019-10-13 21:13:10,542 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:10,542 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2019-10-13 21:13:10,543 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583547719] [2019-10-13 21:13:10,543 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-10-13 21:13:10,544 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:10,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-10-13 21:13:10,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2019-10-13 21:13:10,546 INFO L87 Difference]: Start difference. First operand 2056 states and 2969 transitions. Second operand 15 states. [2019-10-13 21:13:14,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:14,835 INFO L93 Difference]: Finished difference Result 3371 states and 4832 transitions. [2019-10-13 21:13:14,836 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2019-10-13 21:13:14,836 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 227 [2019-10-13 21:13:14,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:14,862 INFO L225 Difference]: With dead ends: 3371 [2019-10-13 21:13:14,862 INFO L226 Difference]: Without dead ends: 2174 [2019-10-13 21:13:14,869 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 512 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=229, Invalid=1933, Unknown=0, NotChecked=0, Total=2162 [2019-10-13 21:13:14,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2174 states. [2019-10-13 21:13:14,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2174 to 2137. [2019-10-13 21:13:14,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2137 states. [2019-10-13 21:13:15,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2137 states to 2137 states and 3106 transitions. [2019-10-13 21:13:15,001 INFO L78 Accepts]: Start accepts. Automaton has 2137 states and 3106 transitions. Word has length 227 [2019-10-13 21:13:15,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:15,002 INFO L462 AbstractCegarLoop]: Abstraction has 2137 states and 3106 transitions. [2019-10-13 21:13:15,002 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-10-13 21:13:15,002 INFO L276 IsEmpty]: Start isEmpty. Operand 2137 states and 3106 transitions. [2019-10-13 21:13:15,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2019-10-13 21:13:15,017 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:15,017 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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, 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 21:13:15,017 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:15,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:15,018 INFO L82 PathProgramCache]: Analyzing trace with hash -1403215942, now seen corresponding path program 1 times [2019-10-13 21:13:15,018 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:15,018 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678725234] [2019-10-13 21:13:15,019 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:15,019 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:15,019 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:15,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:15,186 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-13 21:13:15,187 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678725234] [2019-10-13 21:13:15,187 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [151114201] [2019-10-13 21:13:15,187 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 21:13:15,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:15,824 INFO L256 TraceCheckSpWp]: Trace formula consists of 2952 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-13 21:13:15,847 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:13:16,210 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-13 21:13:16,211 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:13:16,715 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:13:16,797 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-13 21:13:16,862 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-13 21:13:17,023 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2019-10-13 21:13:17,024 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-13 21:13:17,024 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [5, 9] total 18 [2019-10-13 21:13:17,026 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34339149] [2019-10-13 21:13:17,028 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 21:13:17,028 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:17,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 21:13:17,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2019-10-13 21:13:17,029 INFO L87 Difference]: Start difference. First operand 2137 states and 3106 transitions. Second operand 9 states. [2019-10-13 21:13:19,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:19,110 INFO L93 Difference]: Finished difference Result 4252 states and 6192 transitions. [2019-10-13 21:13:19,110 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-13 21:13:19,111 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 230 [2019-10-13 21:13:19,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:19,128 INFO L225 Difference]: With dead ends: 4252 [2019-10-13 21:13:19,128 INFO L226 Difference]: Without dead ends: 2151 [2019-10-13 21:13:19,140 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 467 GetRequests, 444 SyntacticMatches, 4 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=72, Invalid=348, Unknown=0, NotChecked=0, Total=420 [2019-10-13 21:13:19,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2151 states. [2019-10-13 21:13:19,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2151 to 2151. [2019-10-13 21:13:19,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2151 states. [2019-10-13 21:13:19,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2151 states to 2151 states and 3124 transitions. [2019-10-13 21:13:19,297 INFO L78 Accepts]: Start accepts. Automaton has 2151 states and 3124 transitions. Word has length 230 [2019-10-13 21:13:19,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:19,298 INFO L462 AbstractCegarLoop]: Abstraction has 2151 states and 3124 transitions. [2019-10-13 21:13:19,298 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 21:13:19,298 INFO L276 IsEmpty]: Start isEmpty. Operand 2151 states and 3124 transitions. [2019-10-13 21:13:19,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2019-10-13 21:13:19,312 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:19,312 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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, 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 21:13:19,523 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:13:19,524 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:19,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:19,525 INFO L82 PathProgramCache]: Analyzing trace with hash -1173667209, now seen corresponding path program 1 times [2019-10-13 21:13:19,525 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:19,526 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364416076] [2019-10-13 21:13:19,526 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:19,527 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:19,527 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:19,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:19,965 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2019-10-13 21:13:19,966 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364416076] [2019-10-13 21:13:19,966 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:19,966 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2019-10-13 21:13:19,966 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626497933] [2019-10-13 21:13:19,967 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-13 21:13:19,967 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:19,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-13 21:13:19,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2019-10-13 21:13:19,968 INFO L87 Difference]: Start difference. First operand 2151 states and 3124 transitions. Second operand 16 states. [2019-10-13 21:13:20,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:20,528 INFO L93 Difference]: Finished difference Result 3496 states and 5015 transitions. [2019-10-13 21:13:20,529 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-13 21:13:20,529 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 228 [2019-10-13 21:13:20,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:20,549 INFO L225 Difference]: With dead ends: 3496 [2019-10-13 21:13:20,549 INFO L226 Difference]: Without dead ends: 2198 [2019-10-13 21:13:20,559 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2019-10-13 21:13:20,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2198 states. [2019-10-13 21:13:20,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2198 to 2196. [2019-10-13 21:13:20,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2196 states. [2019-10-13 21:13:20,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2196 states to 2196 states and 3165 transitions. [2019-10-13 21:13:20,710 INFO L78 Accepts]: Start accepts. Automaton has 2196 states and 3165 transitions. Word has length 228 [2019-10-13 21:13:20,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:20,711 INFO L462 AbstractCegarLoop]: Abstraction has 2196 states and 3165 transitions. [2019-10-13 21:13:20,711 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-10-13 21:13:20,711 INFO L276 IsEmpty]: Start isEmpty. Operand 2196 states and 3165 transitions. [2019-10-13 21:13:20,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2019-10-13 21:13:20,721 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:20,721 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:13:20,722 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:20,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:20,722 INFO L82 PathProgramCache]: Analyzing trace with hash -311397876, now seen corresponding path program 1 times [2019-10-13 21:13:20,722 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:20,723 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248004393] [2019-10-13 21:13:20,723 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:20,723 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:20,723 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:20,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:20,938 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:13:20,939 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248004393] [2019-10-13 21:13:20,939 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:20,939 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 21:13:20,940 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483001406] [2019-10-13 21:13:20,940 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 21:13:20,945 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:20,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 21:13:20,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 21:13:20,946 INFO L87 Difference]: Start difference. First operand 2196 states and 3165 transitions. Second operand 5 states. [2019-10-13 21:13:22,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:22,577 INFO L93 Difference]: Finished difference Result 5264 states and 7509 transitions. [2019-10-13 21:13:22,578 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 21:13:22,578 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 228 [2019-10-13 21:13:22,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:22,608 INFO L225 Difference]: With dead ends: 5264 [2019-10-13 21:13:22,608 INFO L226 Difference]: Without dead ends: 4597 [2019-10-13 21:13:22,615 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-13 21:13:22,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4597 states. [2019-10-13 21:13:22,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4597 to 4583. [2019-10-13 21:13:22,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4583 states. [2019-10-13 21:13:22,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4583 states to 4583 states and 6574 transitions. [2019-10-13 21:13:22,869 INFO L78 Accepts]: Start accepts. Automaton has 4583 states and 6574 transitions. Word has length 228 [2019-10-13 21:13:22,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:22,870 INFO L462 AbstractCegarLoop]: Abstraction has 4583 states and 6574 transitions. [2019-10-13 21:13:22,871 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 21:13:22,871 INFO L276 IsEmpty]: Start isEmpty. Operand 4583 states and 6574 transitions. [2019-10-13 21:13:22,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2019-10-13 21:13:22,884 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:22,884 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:13:22,885 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:22,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:22,885 INFO L82 PathProgramCache]: Analyzing trace with hash 1542947661, now seen corresponding path program 1 times [2019-10-13 21:13:22,885 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:22,885 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854818613] [2019-10-13 21:13:22,886 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:22,886 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:22,886 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:22,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:23,166 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-13 21:13:23,166 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854818613] [2019-10-13 21:13:23,167 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:23,167 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-10-13 21:13:23,167 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840430137] [2019-10-13 21:13:23,168 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-13 21:13:23,168 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:23,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-13 21:13:23,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2019-10-13 21:13:23,169 INFO L87 Difference]: Start difference. First operand 4583 states and 6574 transitions. Second operand 13 states.