/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/product-lines/email_spec6_product22.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 00:53:25,951 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 00:53:25,953 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 00:53:25,967 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 00:53:25,967 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 00:53:25,968 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 00:53:25,970 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 00:53:25,972 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 00:53:25,974 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 00:53:25,975 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 00:53:25,976 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 00:53:25,977 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 00:53:25,977 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 00:53:25,978 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 00:53:25,979 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 00:53:25,980 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 00:53:25,981 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 00:53:25,982 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 00:53:25,984 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 00:53:25,985 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 00:53:25,987 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 00:53:25,988 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 00:53:25,989 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 00:53:25,990 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 00:53:25,992 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 00:53:25,992 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 00:53:25,993 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 00:53:25,993 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 00:53:25,994 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 00:53:25,995 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 00:53:25,995 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 00:53:25,996 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 00:53:25,997 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 00:53:25,997 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 00:53:25,998 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 00:53:25,999 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 00:53:25,999 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 00:53:25,999 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 00:53:26,000 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 00:53:26,001 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 00:53:26,001 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 00:53:26,002 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-07 00:53:26,022 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 00:53:26,022 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 00:53:26,024 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 00:53:26,024 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 00:53:26,024 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 00:53:26,025 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 00:53:26,026 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 00:53:26,026 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 00:53:26,026 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 00:53:26,026 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 00:53:26,027 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 00:53:26,027 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 00:53:26,028 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 00:53:26,028 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 00:53:26,028 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 00:53:26,029 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 00:53:26,029 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 00:53:26,029 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 00:53:26,029 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 00:53:26,030 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 00:53:26,030 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 00:53:26,031 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 00:53:26,031 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 00:53:26,031 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 00:53:26,031 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 00:53:26,031 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 00:53:26,032 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 00:53:26,032 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 00:53:26,032 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 [2019-11-07 00:53:26,375 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 00:53:26,390 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 00:53:26,394 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 00:53:26,395 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 00:53:26,396 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 00:53:26,396 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec6_product22.cil.c [2019-11-07 00:53:26,454 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/878a630d2/1ce42f91ed1b41c59f45b58ead53e031/FLAGaffa708f8 [2019-11-07 00:53:27,064 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 00:53:27,065 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec6_product22.cil.c [2019-11-07 00:53:27,089 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/878a630d2/1ce42f91ed1b41c59f45b58ead53e031/FLAGaffa708f8 [2019-11-07 00:53:27,243 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/878a630d2/1ce42f91ed1b41c59f45b58ead53e031 [2019-11-07 00:53:27,252 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 00:53:27,254 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 00:53:27,255 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 00:53:27,255 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 00:53:27,258 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 00:53:27,259 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:53:27" (1/1) ... [2019-11-07 00:53:27,262 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6053b9bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:27, skipping insertion in model container [2019-11-07 00:53:27,262 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:53:27" (1/1) ... [2019-11-07 00:53:27,270 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 00:53:27,346 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 00:53:28,176 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:53:28,204 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 00:53:28,375 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:53:28,462 INFO L192 MainTranslator]: Completed translation [2019-11-07 00:53:28,462 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:28 WrapperNode [2019-11-07 00:53:28,463 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 00:53:28,464 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 00:53:28,464 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 00:53:28,464 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 00:53:28,484 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:28" (1/1) ... [2019-11-07 00:53:28,484 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:28" (1/1) ... [2019-11-07 00:53:28,517 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:28" (1/1) ... [2019-11-07 00:53:28,518 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:28" (1/1) ... [2019-11-07 00:53:28,577 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:28" (1/1) ... [2019-11-07 00:53:28,615 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:28" (1/1) ... [2019-11-07 00:53:28,641 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:28" (1/1) ... [2019-11-07 00:53:28,669 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 00:53:28,673 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 00:53:28,673 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 00:53:28,674 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 00:53:28,677 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:28" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 00:53:28,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 00:53:28,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 00:53:28,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-07 00:53:28,755 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-11-07 00:53:28,755 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-11-07 00:53:28,756 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-11-07 00:53:28,756 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-11-07 00:53:28,756 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-11-07 00:53:28,757 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-11-07 00:53:28,757 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-11-07 00:53:28,757 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-11-07 00:53:28,758 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-11-07 00:53:28,758 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-11-07 00:53:28,759 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-11-07 00:53:28,759 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-11-07 00:53:28,759 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-11-07 00:53:28,761 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-11-07 00:53:28,762 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-11-07 00:53:28,762 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-11-07 00:53:28,762 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-11-07 00:53:28,762 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-11-07 00:53:28,762 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-11-07 00:53:28,763 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-11-07 00:53:28,763 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-11-07 00:53:28,763 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-07 00:53:28,763 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-07 00:53:28,764 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-07 00:53:28,764 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-07 00:53:28,764 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-07 00:53:28,764 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-07 00:53:28,764 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-07 00:53:28,765 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-07 00:53:28,766 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-07 00:53:28,766 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-07 00:53:28,766 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-11-07 00:53:28,766 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-11-07 00:53:28,766 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-11-07 00:53:28,766 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-07 00:53:28,767 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-11-07 00:53:28,767 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-11-07 00:53:28,767 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-11-07 00:53:28,767 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-11-07 00:53:28,767 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-11-07 00:53:28,767 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-11-07 00:53:28,767 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-11-07 00:53:28,768 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-11-07 00:53:28,768 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-11-07 00:53:28,768 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-11-07 00:53:28,768 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-11-07 00:53:28,768 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-11-07 00:53:28,768 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-11-07 00:53:28,769 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-11-07 00:53:28,769 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-11-07 00:53:28,769 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-11-07 00:53:28,769 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-11-07 00:53:28,769 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-11-07 00:53:28,769 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-11-07 00:53:28,770 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-11-07 00:53:28,770 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-11-07 00:53:28,770 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-11-07 00:53:28,770 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-11-07 00:53:28,770 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-11-07 00:53:28,770 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-11-07 00:53:28,770 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-11-07 00:53:28,771 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-11-07 00:53:28,771 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-11-07 00:53:28,771 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-11-07 00:53:28,771 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-07 00:53:28,771 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-11-07 00:53:28,771 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-11-07 00:53:28,771 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-11-07 00:53:28,772 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-11-07 00:53:28,772 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-11-07 00:53:28,772 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-11-07 00:53:28,772 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-11-07 00:53:28,772 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-11-07 00:53:28,772 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-07 00:53:28,772 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 00:53:28,773 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-11-07 00:53:28,773 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-11-07 00:53:28,773 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-11-07 00:53:28,773 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-11-07 00:53:28,773 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-11-07 00:53:28,773 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-11-07 00:53:28,774 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-11-07 00:53:28,774 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-11-07 00:53:28,774 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-11-07 00:53:28,774 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-11-07 00:53:28,774 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-11-07 00:53:28,774 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-11-07 00:53:28,775 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-11-07 00:53:28,775 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-11-07 00:53:28,775 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-11-07 00:53:28,775 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-11-07 00:53:28,775 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AutoResponder [2019-11-07 00:53:28,775 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-11-07 00:53:28,775 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-11-07 00:53:28,776 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-11-07 00:53:28,776 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-11-07 00:53:28,776 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-11-07 00:53:28,776 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-11-07 00:53:28,776 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-11-07 00:53:28,776 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-11-07 00:53:28,776 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-11-07 00:53:28,777 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-11-07 00:53:28,777 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-11-07 00:53:28,777 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-11-07 00:53:28,777 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-11-07 00:53:28,777 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-11-07 00:53:28,777 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-11-07 00:53:28,777 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-11-07 00:53:28,778 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-11-07 00:53:28,778 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-11-07 00:53:28,778 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 00:53:28,778 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 00:53:28,778 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-11-07 00:53:28,778 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-11-07 00:53:28,779 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-11-07 00:53:28,779 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-11-07 00:53:28,779 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-11-07 00:53:28,779 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-11-07 00:53:28,779 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-11-07 00:53:28,779 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-11-07 00:53:28,779 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-11-07 00:53:28,780 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-11-07 00:53:28,780 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-11-07 00:53:28,780 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-11-07 00:53:28,780 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-11-07 00:53:28,780 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-11-07 00:53:28,780 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-11-07 00:53:28,780 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-11-07 00:53:28,781 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-11-07 00:53:28,781 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-11-07 00:53:28,781 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-11-07 00:53:28,781 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-11-07 00:53:28,781 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-11-07 00:53:28,781 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-07 00:53:28,782 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-07 00:53:28,782 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-07 00:53:28,782 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-07 00:53:28,782 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-07 00:53:28,782 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 00:53:28,782 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 00:53:28,782 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-07 00:53:28,783 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 00:53:28,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 00:53:28,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 00:53:28,783 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 00:53:28,783 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-07 00:53:28,783 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 00:53:28,784 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-07 00:53:28,784 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-07 00:53:28,784 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 00:53:28,784 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-07 00:53:28,784 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-07 00:53:28,784 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 00:53:28,784 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-07 00:53:28,785 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-07 00:53:28,785 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-11-07 00:53:28,785 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-07 00:53:28,785 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-11-07 00:53:28,785 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-11-07 00:53:28,785 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-11-07 00:53:28,785 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-11-07 00:53:28,786 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-11-07 00:53:28,786 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-11-07 00:53:28,786 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-11-07 00:53:28,786 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-11-07 00:53:28,786 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-11-07 00:53:28,786 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-11-07 00:53:28,786 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-11-07 00:53:28,787 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-11-07 00:53:28,787 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-11-07 00:53:28,787 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-11-07 00:53:28,787 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-11-07 00:53:28,787 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-11-07 00:53:28,787 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-11-07 00:53:28,787 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-11-07 00:53:28,787 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-11-07 00:53:28,788 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-11-07 00:53:28,788 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-11-07 00:53:28,788 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-11-07 00:53:28,788 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-11-07 00:53:28,788 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-11-07 00:53:28,788 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-11-07 00:53:28,788 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-11-07 00:53:28,789 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-11-07 00:53:28,789 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-11-07 00:53:28,789 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-11-07 00:53:28,789 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-11-07 00:53:28,789 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-11-07 00:53:28,789 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-11-07 00:53:28,789 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-11-07 00:53:28,789 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-11-07 00:53:28,790 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-11-07 00:53:28,790 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-11-07 00:53:28,790 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-11-07 00:53:28,790 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-11-07 00:53:28,790 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-11-07 00:53:28,790 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-11-07 00:53:28,790 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-11-07 00:53:28,791 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-11-07 00:53:28,791 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-11-07 00:53:28,791 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-07 00:53:28,791 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-11-07 00:53:28,791 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-11-07 00:53:28,791 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-11-07 00:53:28,791 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-11-07 00:53:28,791 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-11-07 00:53:28,792 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-11-07 00:53:28,792 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-11-07 00:53:28,792 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-11-07 00:53:28,792 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-11-07 00:53:28,792 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-11-07 00:53:28,792 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-07 00:53:28,792 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 00:53:28,793 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-11-07 00:53:28,793 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-11-07 00:53:28,793 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-11-07 00:53:28,793 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-11-07 00:53:28,793 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-11-07 00:53:28,793 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-11-07 00:53:28,793 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-11-07 00:53:28,793 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-11-07 00:53:28,794 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-11-07 00:53:28,794 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-11-07 00:53:28,794 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-11-07 00:53:28,794 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-11-07 00:53:28,794 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-11-07 00:53:28,794 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-11-07 00:53:28,794 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-11-07 00:53:28,794 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-11-07 00:53:28,795 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AutoResponder [2019-11-07 00:53:28,795 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-11-07 00:53:28,795 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-11-07 00:53:28,795 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-11-07 00:53:28,795 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-11-07 00:53:28,795 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-11-07 00:53:28,796 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 00:53:28,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 00:53:28,796 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 00:53:30,806 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 00:53:30,807 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-07 00:53:30,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:53:30 BoogieIcfgContainer [2019-11-07 00:53:30,809 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 00:53:30,812 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 00:53:30,812 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 00:53:30,815 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 00:53:30,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:53:27" (1/3) ... [2019-11-07 00:53:30,817 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2efd2445 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:53:30, skipping insertion in model container [2019-11-07 00:53:30,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:28" (2/3) ... [2019-11-07 00:53:30,817 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2efd2445 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:53:30, skipping insertion in model container [2019-11-07 00:53:30,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:53:30" (3/3) ... [2019-11-07 00:53:30,821 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec6_product22.cil.c [2019-11-07 00:53:30,832 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 00:53:30,844 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 00:53:30,856 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 00:53:30,900 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 00:53:30,901 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 00:53:30,901 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 00:53:30,901 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 00:53:30,901 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 00:53:30,901 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 00:53:30,901 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 00:53:30,902 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 00:53:30,945 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states. [2019-11-07 00:53:30,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2019-11-07 00:53:30,979 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:53:30,980 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-11-07 00:53:30,984 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:53:30,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:53:30,991 INFO L82 PathProgramCache]: Analyzing trace with hash 769070679, now seen corresponding path program 1 times [2019-11-07 00:53:31,012 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:53:31,013 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626439511] [2019-11-07 00:53:31,013 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:53:31,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:53:31,691 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-11-07 00:53:31,692 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626439511] [2019-11-07 00:53:31,693 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:53:31,693 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 00:53:31,694 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100437591] [2019-11-07 00:53:31,699 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 00:53:31,701 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:53:31,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 00:53:31,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 00:53:31,719 INFO L87 Difference]: Start difference. First operand 516 states. Second operand 2 states. [2019-11-07 00:53:31,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:53:31,848 INFO L93 Difference]: Finished difference Result 763 states and 1004 transitions. [2019-11-07 00:53:31,848 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 00:53:31,850 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 176 [2019-11-07 00:53:31,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:53:31,897 INFO L225 Difference]: With dead ends: 763 [2019-11-07 00:53:31,897 INFO L226 Difference]: Without dead ends: 493 [2019-11-07 00:53:31,911 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 00:53:31,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2019-11-07 00:53:32,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 493. [2019-11-07 00:53:32,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 493 states. [2019-11-07 00:53:32,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 653 transitions. [2019-11-07 00:53:32,049 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 653 transitions. Word has length 176 [2019-11-07 00:53:32,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:53:32,053 INFO L462 AbstractCegarLoop]: Abstraction has 493 states and 653 transitions. [2019-11-07 00:53:32,053 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 00:53:32,053 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 653 transitions. [2019-11-07 00:53:32,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2019-11-07 00:53:32,064 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:53:32,065 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-11-07 00:53:32,065 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:53:32,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:53:32,066 INFO L82 PathProgramCache]: Analyzing trace with hash -688559635, now seen corresponding path program 1 times [2019-11-07 00:53:32,066 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:53:32,066 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28176095] [2019-11-07 00:53:32,066 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:53:32,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:53:32,414 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-11-07 00:53:32,414 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28176095] [2019-11-07 00:53:32,414 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:53:32,415 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:53:32,415 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004243295] [2019-11-07 00:53:32,428 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:53:32,428 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:53:32,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:53:32,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:53:32,435 INFO L87 Difference]: Start difference. First operand 493 states and 653 transitions. Second operand 3 states. [2019-11-07 00:53:32,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:53:32,482 INFO L93 Difference]: Finished difference Result 746 states and 972 transitions. [2019-11-07 00:53:32,483 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:53:32,483 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 177 [2019-11-07 00:53:32,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:53:32,489 INFO L225 Difference]: With dead ends: 746 [2019-11-07 00:53:32,489 INFO L226 Difference]: Without dead ends: 496 [2019-11-07 00:53:32,491 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:53:32,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2019-11-07 00:53:32,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 495. [2019-11-07 00:53:32,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 495 states. [2019-11-07 00:53:32,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 655 transitions. [2019-11-07 00:53:32,524 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 655 transitions. Word has length 177 [2019-11-07 00:53:32,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:53:32,526 INFO L462 AbstractCegarLoop]: Abstraction has 495 states and 655 transitions. [2019-11-07 00:53:32,526 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:53:32,526 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 655 transitions. [2019-11-07 00:53:32,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2019-11-07 00:53:32,534 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:53:32,534 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-11-07 00:53:32,534 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:53:32,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:53:32,535 INFO L82 PathProgramCache]: Analyzing trace with hash -786901730, now seen corresponding path program 1 times [2019-11-07 00:53:32,535 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:53:32,535 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468313318] [2019-11-07 00:53:32,536 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:53:32,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:53:32,768 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-11-07 00:53:32,769 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468313318] [2019-11-07 00:53:32,769 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:53:32,769 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:53:32,770 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329449217] [2019-11-07 00:53:32,770 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:53:32,771 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:53:32,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:53:32,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:53:32,771 INFO L87 Difference]: Start difference. First operand 495 states and 655 transitions. Second operand 3 states. [2019-11-07 00:53:32,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:53:32,805 INFO L93 Difference]: Finished difference Result 968 states and 1311 transitions. [2019-11-07 00:53:32,805 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:53:32,806 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 189 [2019-11-07 00:53:32,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:53:32,812 INFO L225 Difference]: With dead ends: 968 [2019-11-07 00:53:32,812 INFO L226 Difference]: Without dead ends: 538 [2019-11-07 00:53:32,814 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:53:32,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2019-11-07 00:53:32,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 537. [2019-11-07 00:53:32,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 537 states. [2019-11-07 00:53:32,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 727 transitions. [2019-11-07 00:53:32,846 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 727 transitions. Word has length 189 [2019-11-07 00:53:32,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:53:32,847 INFO L462 AbstractCegarLoop]: Abstraction has 537 states and 727 transitions. [2019-11-07 00:53:32,847 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:53:32,847 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 727 transitions. [2019-11-07 00:53:32,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2019-11-07 00:53:32,855 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:53:32,856 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-11-07 00:53:32,856 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:53:32,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:53:32,857 INFO L82 PathProgramCache]: Analyzing trace with hash 647973382, now seen corresponding path program 1 times [2019-11-07 00:53:32,857 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:53:32,857 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368110413] [2019-11-07 00:53:32,857 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:53:32,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:53:33,096 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-11-07 00:53:33,097 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368110413] [2019-11-07 00:53:33,097 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:53:33,101 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:53:33,101 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374798498] [2019-11-07 00:53:33,110 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:53:33,110 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:53:33,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:53:33,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:53:33,111 INFO L87 Difference]: Start difference. First operand 537 states and 727 transitions. Second operand 3 states. [2019-11-07 00:53:33,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:53:33,169 INFO L93 Difference]: Finished difference Result 1091 states and 1522 transitions. [2019-11-07 00:53:33,171 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:53:33,171 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 190 [2019-11-07 00:53:33,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:53:33,179 INFO L225 Difference]: With dead ends: 1091 [2019-11-07 00:53:33,179 INFO L226 Difference]: Without dead ends: 619 [2019-11-07 00:53:33,182 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:53:33,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2019-11-07 00:53:33,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 618. [2019-11-07 00:53:33,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 618 states. [2019-11-07 00:53:33,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 618 states and 865 transitions. [2019-11-07 00:53:33,225 INFO L78 Accepts]: Start accepts. Automaton has 618 states and 865 transitions. Word has length 190 [2019-11-07 00:53:33,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:53:33,226 INFO L462 AbstractCegarLoop]: Abstraction has 618 states and 865 transitions. [2019-11-07 00:53:33,226 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:53:33,226 INFO L276 IsEmpty]: Start isEmpty. Operand 618 states and 865 transitions. [2019-11-07 00:53:33,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2019-11-07 00:53:33,233 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:53:33,233 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-11-07 00:53:33,233 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:53:33,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:53:33,234 INFO L82 PathProgramCache]: Analyzing trace with hash 1688592318, now seen corresponding path program 1 times [2019-11-07 00:53:33,234 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:53:33,235 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626969248] [2019-11-07 00:53:33,236 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:53:33,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:53:33,654 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-11-07 00:53:33,655 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626969248] [2019-11-07 00:53:33,656 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:53:33,656 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:53:33,656 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63408739] [2019-11-07 00:53:33,657 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:53:33,657 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:53:33,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:53:33,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:53:33,660 INFO L87 Difference]: Start difference. First operand 618 states and 865 transitions. Second operand 3 states. [2019-11-07 00:53:33,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:53:33,712 INFO L93 Difference]: Finished difference Result 1328 states and 1926 transitions. [2019-11-07 00:53:33,712 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:53:33,713 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 191 [2019-11-07 00:53:33,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:53:33,718 INFO L225 Difference]: With dead ends: 1328 [2019-11-07 00:53:33,718 INFO L226 Difference]: Without dead ends: 775 [2019-11-07 00:53:33,721 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:53:33,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 775 states. [2019-11-07 00:53:33,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 775 to 774. [2019-11-07 00:53:33,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 774 states. [2019-11-07 00:53:33,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 774 states to 774 states and 1129 transitions. [2019-11-07 00:53:33,761 INFO L78 Accepts]: Start accepts. Automaton has 774 states and 1129 transitions. Word has length 191 [2019-11-07 00:53:33,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:53:33,762 INFO L462 AbstractCegarLoop]: Abstraction has 774 states and 1129 transitions. [2019-11-07 00:53:33,762 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:53:33,762 INFO L276 IsEmpty]: Start isEmpty. Operand 774 states and 1129 transitions. [2019-11-07 00:53:33,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2019-11-07 00:53:33,766 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:53:33,767 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-11-07 00:53:33,767 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:53:33,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:53:33,767 INFO L82 PathProgramCache]: Analyzing trace with hash 1410664810, now seen corresponding path program 1 times [2019-11-07 00:53:33,767 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:53:33,768 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32049920] [2019-11-07 00:53:33,768 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:53:33,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:53:34,056 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-11-07 00:53:34,057 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32049920] [2019-11-07 00:53:34,057 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:53:34,057 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-11-07 00:53:34,057 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143253013] [2019-11-07 00:53:34,058 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-07 00:53:34,058 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:53:34,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-07 00:53:34,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2019-11-07 00:53:34,059 INFO L87 Difference]: Start difference. First operand 774 states and 1129 transitions. Second operand 11 states. [2019-11-07 00:53:38,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:53:38,888 INFO L93 Difference]: Finished difference Result 2730 states and 3704 transitions. [2019-11-07 00:53:38,895 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2019-11-07 00:53:38,895 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 193 [2019-11-07 00:53:38,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:53:38,910 INFO L225 Difference]: With dead ends: 2730 [2019-11-07 00:53:38,911 INFO L226 Difference]: Without dead ends: 2185 [2019-11-07 00:53:38,914 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=190, Invalid=802, Unknown=0, NotChecked=0, Total=992 [2019-11-07 00:53:38,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2185 states. [2019-11-07 00:53:39,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2185 to 2170. [2019-11-07 00:53:39,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2170 states. [2019-11-07 00:53:39,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2170 states to 2170 states and 2938 transitions. [2019-11-07 00:53:39,065 INFO L78 Accepts]: Start accepts. Automaton has 2170 states and 2938 transitions. Word has length 193 [2019-11-07 00:53:39,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:53:39,066 INFO L462 AbstractCegarLoop]: Abstraction has 2170 states and 2938 transitions. [2019-11-07 00:53:39,066 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-07 00:53:39,066 INFO L276 IsEmpty]: Start isEmpty. Operand 2170 states and 2938 transitions. [2019-11-07 00:53:39,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2019-11-07 00:53:39,073 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:53:39,073 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-11-07 00:53:39,074 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:53:39,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:53:39,074 INFO L82 PathProgramCache]: Analyzing trace with hash -2066868888, now seen corresponding path program 1 times [2019-11-07 00:53:39,075 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:53:39,075 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216057733] [2019-11-07 00:53:39,075 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:53:39,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:53:39,438 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-11-07 00:53:39,439 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216057733] [2019-11-07 00:53:39,439 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:53:39,439 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2019-11-07 00:53:39,440 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368197548] [2019-11-07 00:53:39,440 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-11-07 00:53:39,441 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:53:39,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-11-07 00:53:39,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2019-11-07 00:53:39,442 INFO L87 Difference]: Start difference. First operand 2170 states and 2938 transitions. Second operand 16 states. [2019-11-07 00:53:39,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:53:39,883 INFO L93 Difference]: Finished difference Result 3602 states and 4793 transitions. [2019-11-07 00:53:39,884 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-11-07 00:53:39,884 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 194 [2019-11-07 00:53:39,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:53:39,897 INFO L225 Difference]: With dead ends: 3602 [2019-11-07 00:53:39,901 INFO L226 Difference]: Without dead ends: 1795 [2019-11-07 00:53:39,907 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2019-11-07 00:53:39,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1795 states. [2019-11-07 00:53:40,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1795 to 1748. [2019-11-07 00:53:40,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1748 states. [2019-11-07 00:53:40,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1748 states to 1748 states and 2379 transitions. [2019-11-07 00:53:40,028 INFO L78 Accepts]: Start accepts. Automaton has 1748 states and 2379 transitions. Word has length 194 [2019-11-07 00:53:40,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:53:40,029 INFO L462 AbstractCegarLoop]: Abstraction has 1748 states and 2379 transitions. [2019-11-07 00:53:40,029 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-11-07 00:53:40,029 INFO L276 IsEmpty]: Start isEmpty. Operand 1748 states and 2379 transitions. [2019-11-07 00:53:40,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2019-11-07 00:53:40,034 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:53:40,034 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-11-07 00:53:40,035 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:53:40,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:53:40,035 INFO L82 PathProgramCache]: Analyzing trace with hash 470827017, now seen corresponding path program 1 times [2019-11-07 00:53:40,035 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:53:40,035 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476743609] [2019-11-07 00:53:40,036 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:53:40,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:53:40,225 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-11-07 00:53:40,226 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476743609] [2019-11-07 00:53:40,226 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:53:40,226 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-07 00:53:40,226 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031898537] [2019-11-07 00:53:40,228 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-07 00:53:40,228 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:53:40,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-07 00:53:40,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-07 00:53:40,228 INFO L87 Difference]: Start difference. First operand 1748 states and 2379 transitions. Second operand 6 states. [2019-11-07 00:53:40,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:53:40,938 INFO L93 Difference]: Finished difference Result 4670 states and 6300 transitions. [2019-11-07 00:53:40,939 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-07 00:53:40,939 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 203 [2019-11-07 00:53:40,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:53:40,973 INFO L225 Difference]: With dead ends: 4670 [2019-11-07 00:53:40,974 INFO L226 Difference]: Without dead ends: 3487 [2019-11-07 00:53:40,980 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-07 00:53:40,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3487 states. [2019-11-07 00:53:41,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3487 to 3416. [2019-11-07 00:53:41,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3416 states. [2019-11-07 00:53:41,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3416 states to 3416 states and 4702 transitions. [2019-11-07 00:53:41,244 INFO L78 Accepts]: Start accepts. Automaton has 3416 states and 4702 transitions. Word has length 203 [2019-11-07 00:53:41,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:53:41,245 INFO L462 AbstractCegarLoop]: Abstraction has 3416 states and 4702 transitions. [2019-11-07 00:53:41,245 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-07 00:53:41,245 INFO L276 IsEmpty]: Start isEmpty. Operand 3416 states and 4702 transitions. [2019-11-07 00:53:41,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2019-11-07 00:53:41,257 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:53:41,257 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-11-07 00:53:41,257 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:53:41,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:53:41,258 INFO L82 PathProgramCache]: Analyzing trace with hash -1952139048, now seen corresponding path program 1 times [2019-11-07 00:53:41,258 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:53:41,258 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307668454] [2019-11-07 00:53:41,258 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:53:41,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:53:41,456 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-11-07 00:53:41,457 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307668454] [2019-11-07 00:53:41,457 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:53:41,458 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-11-07 00:53:41,459 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544150216] [2019-11-07 00:53:41,460 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-07 00:53:41,460 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:53:41,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-07 00:53:41,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-11-07 00:53:41,461 INFO L87 Difference]: Start difference. First operand 3416 states and 4702 transitions. Second operand 9 states. [2019-11-07 00:53:41,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:53:41,826 INFO L93 Difference]: Finished difference Result 5805 states and 7737 transitions. [2019-11-07 00:53:41,826 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-07 00:53:41,827 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 204 [2019-11-07 00:53:41,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:53:41,848 INFO L225 Difference]: With dead ends: 5805 [2019-11-07 00:53:41,848 INFO L226 Difference]: Without dead ends: 3434 [2019-11-07 00:53:41,856 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2019-11-07 00:53:41,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3434 states. [2019-11-07 00:53:42,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3434 to 3404. [2019-11-07 00:53:42,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3404 states. [2019-11-07 00:53:42,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3404 states to 3404 states and 4676 transitions. [2019-11-07 00:53:42,084 INFO L78 Accepts]: Start accepts. Automaton has 3404 states and 4676 transitions. Word has length 204 [2019-11-07 00:53:42,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:53:42,084 INFO L462 AbstractCegarLoop]: Abstraction has 3404 states and 4676 transitions. [2019-11-07 00:53:42,084 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-07 00:53:42,084 INFO L276 IsEmpty]: Start isEmpty. Operand 3404 states and 4676 transitions. [2019-11-07 00:53:42,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2019-11-07 00:53:42,092 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:53:42,093 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-11-07 00:53:42,093 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:53:42,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:53:42,094 INFO L82 PathProgramCache]: Analyzing trace with hash -1365362929, now seen corresponding path program 1 times [2019-11-07 00:53:42,094 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:53:42,094 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535487510] [2019-11-07 00:53:42,094 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:53:42,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:53:42,247 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-11-07 00:53:42,247 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535487510] [2019-11-07 00:53:42,248 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:53:42,248 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-07 00:53:42,248 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921149425] [2019-11-07 00:53:42,249 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-07 00:53:42,249 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:53:42,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-07 00:53:42,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-07 00:53:42,249 INFO L87 Difference]: Start difference. First operand 3404 states and 4676 transitions. Second operand 5 states. [2019-11-07 00:53:43,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:53:43,583 INFO L93 Difference]: Finished difference Result 11031 states and 14823 transitions. [2019-11-07 00:53:43,584 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-07 00:53:43,584 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 204 [2019-11-07 00:53:43,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:53:43,649 INFO L225 Difference]: With dead ends: 11031 [2019-11-07 00:53:43,649 INFO L226 Difference]: Without dead ends: 7882 [2019-11-07 00:53:43,668 INFO L630 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 [2019-11-07 00:53:43,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7882 states. [2019-11-07 00:53:44,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7882 to 7616. [2019-11-07 00:53:44,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7616 states. [2019-11-07 00:53:44,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7616 states to 7616 states and 10488 transitions. [2019-11-07 00:53:44,144 INFO L78 Accepts]: Start accepts. Automaton has 7616 states and 10488 transitions. Word has length 204 [2019-11-07 00:53:44,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:53:44,144 INFO L462 AbstractCegarLoop]: Abstraction has 7616 states and 10488 transitions. [2019-11-07 00:53:44,145 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-07 00:53:44,145 INFO L276 IsEmpty]: Start isEmpty. Operand 7616 states and 10488 transitions. [2019-11-07 00:53:44,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2019-11-07 00:53:44,163 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:53:44,163 INFO L410 BasicCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:53:44,163 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:53:44,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:53:44,164 INFO L82 PathProgramCache]: Analyzing trace with hash 1812320115, now seen corresponding path program 1 times [2019-11-07 00:53:44,164 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:53:44,164 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952684998] [2019-11-07 00:53:44,165 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:53:44,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:53:44,372 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-11-07 00:53:44,372 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952684998] [2019-11-07 00:53:44,372 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:53:44,373 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-07 00:53:44,373 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307908385] [2019-11-07 00:53:44,374 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-07 00:53:44,374 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:53:44,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-07 00:53:44,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-11-07 00:53:44,375 INFO L87 Difference]: Start difference. First operand 7616 states and 10488 transitions. Second operand 8 states. [2019-11-07 00:53:49,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:53:49,253 INFO L93 Difference]: Finished difference Result 23214 states and 33454 transitions. [2019-11-07 00:53:49,254 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-11-07 00:53:49,254 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 241 [2019-11-07 00:53:49,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:53:49,354 INFO L225 Difference]: With dead ends: 23214 [2019-11-07 00:53:49,354 INFO L226 Difference]: Without dead ends: 15663 [2019-11-07 00:53:49,381 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2019-11-07 00:53:49,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15663 states. [2019-11-07 00:53:49,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15663 to 9868. [2019-11-07 00:53:49,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9868 states. [2019-11-07 00:53:49,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9868 states to 9868 states and 14984 transitions. [2019-11-07 00:53:49,966 INFO L78 Accepts]: Start accepts. Automaton has 9868 states and 14984 transitions. Word has length 241 [2019-11-07 00:53:49,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:53:49,967 INFO L462 AbstractCegarLoop]: Abstraction has 9868 states and 14984 transitions. [2019-11-07 00:53:49,967 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-07 00:53:49,967 INFO L276 IsEmpty]: Start isEmpty. Operand 9868 states and 14984 transitions. [2019-11-07 00:53:50,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2019-11-07 00:53:50,005 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:53:50,005 INFO L410 BasicCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:53:50,006 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:53:50,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:53:50,006 INFO L82 PathProgramCache]: Analyzing trace with hash 1582698216, now seen corresponding path program 1 times [2019-11-07 00:53:50,006 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:53:50,006 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750635963] [2019-11-07 00:53:50,007 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:53:50,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:53:50,212 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-11-07 00:53:50,213 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750635963] [2019-11-07 00:53:50,213 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:53:50,213 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-07 00:53:50,213 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537097433] [2019-11-07 00:53:50,214 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-07 00:53:50,214 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:53:50,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-07 00:53:50,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-11-07 00:53:50,215 INFO L87 Difference]: Start difference. First operand 9868 states and 14984 transitions. Second operand 8 states. [2019-11-07 00:53:55,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:53:55,337 INFO L93 Difference]: Finished difference Result 30506 states and 49190 transitions. [2019-11-07 00:53:55,338 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-11-07 00:53:55,338 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 242 [2019-11-07 00:53:55,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:53:55,441 INFO L225 Difference]: With dead ends: 30506 [2019-11-07 00:53:55,441 INFO L226 Difference]: Without dead ends: 20703 [2019-11-07 00:53:55,484 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2019-11-07 00:53:55,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20703 states. [2019-11-07 00:53:56,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20703 to 14492. [2019-11-07 00:53:56,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14492 states. [2019-11-07 00:53:56,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14492 states to 14492 states and 24816 transitions. [2019-11-07 00:53:56,686 INFO L78 Accepts]: Start accepts. Automaton has 14492 states and 24816 transitions. Word has length 242 [2019-11-07 00:53:56,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:53:56,686 INFO L462 AbstractCegarLoop]: Abstraction has 14492 states and 24816 transitions. [2019-11-07 00:53:56,686 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-07 00:53:56,686 INFO L276 IsEmpty]: Start isEmpty. Operand 14492 states and 24816 transitions. [2019-11-07 00:53:56,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2019-11-07 00:53:56,779 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:53:56,779 INFO L410 BasicCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:53:56,780 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:53:56,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:53:56,780 INFO L82 PathProgramCache]: Analyzing trace with hash 1204731446, now seen corresponding path program 1 times [2019-11-07 00:53:56,780 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:53:56,780 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883686772] [2019-11-07 00:53:56,781 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:53:56,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:53:56,936 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-11-07 00:53:56,936 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883686772] [2019-11-07 00:53:56,936 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:53:56,937 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:53:56,937 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870919077] [2019-11-07 00:53:56,937 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:53:56,938 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:53:56,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:53:56,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:53:56,939 INFO L87 Difference]: Start difference. First operand 14492 states and 24816 transitions. Second operand 3 states. [2019-11-07 00:53:57,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:53:57,598 INFO L93 Difference]: Finished difference Result 33723 states and 60331 transitions. [2019-11-07 00:53:57,598 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:53:57,598 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 244 [2019-11-07 00:53:57,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:53:57,693 INFO L225 Difference]: With dead ends: 33723 [2019-11-07 00:53:57,693 INFO L226 Difference]: Without dead ends: 19296 [2019-11-07 00:53:57,749 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:53:57,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19296 states.