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_spec7_product34.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:16:56,663 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:16:56,667 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:16:56,685 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:16:56,685 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:16:56,687 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:16:56,689 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:16:56,699 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:16:56,703 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:16:56,707 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:16:56,708 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:16:56,710 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:16:56,710 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:16:56,712 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:16:56,714 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:16:56,716 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:16:56,718 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:16:56,719 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:16:56,721 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:16:56,726 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:16:56,730 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:16:56,733 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:16:56,735 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:16:56,736 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:16:56,738 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:16:56,738 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:16:56,739 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:16:56,740 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:16:56,741 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:16:56,742 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:16:56,742 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:16:56,743 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:16:56,744 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:16:56,745 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:16:56,746 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:16:56,746 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:16:56,747 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:16:56,747 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:16:56,747 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:16:56,748 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:16:56,749 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:16:56,750 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 01:16:56,776 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:16:56,776 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:16:56,777 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:16:56,782 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:16:56,783 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:16:56,783 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:16:56,786 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:16:56,786 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:16:56,786 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:16:56,787 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:16:56,787 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:16:56,787 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:16:56,787 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:16:56,787 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:16:56,788 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:16:56,788 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:16:56,788 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:16:56,789 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:16:56,790 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:16:56,790 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:16:56,790 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:16:56,790 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:16:56,790 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:16:56,791 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:16:56,791 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:16:56,791 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:16:56,791 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:16:56,791 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:16:56,791 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-15 01:16:57,077 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:16:57,093 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:16:57,098 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:16:57,099 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:16:57,099 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:16:57,100 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec7_product34.cil.c [2019-10-15 01:16:57,183 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b3fdbde45/0e474b66297e48979e413cb639ec8cc4/FLAG33e5857fd [2019-10-15 01:16:57,860 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:16:57,861 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec7_product34.cil.c [2019-10-15 01:16:57,881 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b3fdbde45/0e474b66297e48979e413cb639ec8cc4/FLAG33e5857fd [2019-10-15 01:16:58,072 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b3fdbde45/0e474b66297e48979e413cb639ec8cc4 [2019-10-15 01:16:58,082 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:16:58,083 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:16:58,084 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:16:58,084 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:16:58,087 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:16:58,087 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:16:58" (1/1) ... [2019-10-15 01:16:58,090 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@aed49ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:58, skipping insertion in model container [2019-10-15 01:16:58,090 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:16:58" (1/1) ... [2019-10-15 01:16:58,096 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:16:58,180 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:16:59,095 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:16:59,121 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:16:59,264 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:16:59,376 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:16:59,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:59 WrapperNode [2019-10-15 01:16:59,377 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:16:59,378 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:16:59,378 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:16:59,378 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:16:59,394 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:59" (1/1) ... [2019-10-15 01:16:59,395 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:59" (1/1) ... [2019-10-15 01:16:59,429 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:59" (1/1) ... [2019-10-15 01:16:59,430 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:59" (1/1) ... [2019-10-15 01:16:59,501 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:59" (1/1) ... [2019-10-15 01:16:59,532 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:59" (1/1) ... [2019-10-15 01:16:59,558 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:59" (1/1) ... [2019-10-15 01:16:59,586 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:16:59,586 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:16:59,587 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:16:59,587 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:16:59,589 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:59" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:16:59,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:16:59,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:16:59,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 01:16:59,667 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 01:16:59,667 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 01:16:59,668 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 01:16:59,668 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 01:16:59,668 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 01:16:59,669 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 01:16:59,669 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 01:16:59,669 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 01:16:59,670 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 01:16:59,670 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:16:59,671 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 01:16:59,671 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 01:16:59,671 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 01:16:59,673 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 01:16:59,673 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 01:16:59,674 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 01:16:59,674 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 01:16:59,674 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 01:16:59,674 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 01:16:59,675 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-15 01:16:59,675 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-15 01:16:59,675 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 01:16:59,675 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-15 01:16:59,675 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-15 01:16:59,675 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 01:16:59,676 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 01:16:59,676 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 01:16:59,676 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 01:16:59,676 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 01:16:59,676 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptVerify_spec__1 [2019-10-15 01:16:59,676 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 01:16:59,677 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 01:16:59,677 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 01:16:59,677 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 01:16:59,677 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 01:16:59,678 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 01:16:59,678 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 01:16:59,678 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 01:16:59,678 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 01:16:59,678 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 01:16:59,678 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 01:16:59,678 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 01:16:59,679 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 01:16:59,679 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 01:16:59,679 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 01:16:59,679 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 01:16:59,679 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 01:16:59,679 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 01:16:59,679 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 01:16:59,680 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 01:16:59,680 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 01:16:59,680 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 01:16:59,680 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 01:16:59,680 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 01:16:59,681 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 01:16:59,681 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 01:16:59,681 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 01:16:59,681 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 01:16:59,681 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 01:16:59,682 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 01:16:59,682 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 01:16:59,682 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 01:16:59,683 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 01:16:59,683 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 01:16:59,683 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 01:16:59,683 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 01:16:59,683 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 01:16:59,683 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 01:16:59,684 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 01:16:59,684 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 01:16:59,685 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 01:16:59,685 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 01:16:59,685 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 01:16:59,685 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 01:16:59,685 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 01:16:59,686 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 01:16:59,686 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 01:16:59,687 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 01:16:59,687 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 01:16:59,687 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 01:16:59,687 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 01:16:59,688 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 01:16:59,688 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 01:16:59,688 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 01:16:59,689 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 01:16:59,689 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 01:16:59,690 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 01:16:59,690 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 01:16:59,690 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 01:16:59,690 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 01:16:59,690 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 01:16:59,691 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 01:16:59,691 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 01:16:59,691 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 01:16:59,691 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-15 01:16:59,691 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-15 01:16:59,691 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 01:16:59,692 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 01:16:59,692 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-15 01:16:59,692 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-15 01:16:59,692 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-15 01:16:59,692 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 01:16:59,693 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 01:16:59,693 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 01:16:59,693 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 01:16:59,693 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 01:16:59,693 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 01:16:59,694 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 01:16:59,694 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 01:16:59,694 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 01:16:59,694 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-15 01:16:59,694 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-15 01:16:59,695 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-15 01:16:59,695 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-15 01:16:59,695 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 01:16:59,695 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:16:59,695 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:16:59,696 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 01:16:59,696 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 01:16:59,696 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 01:16:59,697 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 01:16:59,698 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 01:16:59,698 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 01:16:59,699 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 01:16:59,699 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 01:16:59,699 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 01:16:59,699 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 01:16:59,699 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 01:16:59,700 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 01:16:59,700 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 01:16:59,700 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 01:16:59,700 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 01:16:59,701 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 01:16:59,701 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 01:16:59,704 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 01:16:59,705 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 01:16:59,705 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 01:16:59,705 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 01:16:59,706 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 01:16:59,706 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 01:16:59,707 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 01:16:59,713 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 01:16:59,713 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 01:16:59,713 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 01:16:59,714 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 01:16:59,714 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 01:16:59,714 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:16:59,714 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 01:16:59,714 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 01:16:59,715 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 01:16:59,715 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 01:16:59,716 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 01:16:59,716 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 01:16:59,716 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 01:16:59,717 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 01:16:59,717 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 01:16:59,717 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-15 01:16:59,717 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-15 01:16:59,717 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 01:16:59,717 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 01:16:59,718 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 01:16:59,718 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:16:59,718 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 01:16:59,718 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 01:16:59,718 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 01:16:59,718 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 01:16:59,719 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 01:16:59,719 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 01:16:59,719 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 01:16:59,719 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 01:16:59,719 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 01:16:59,719 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 01:16:59,720 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 01:16:59,720 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 01:16:59,720 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 01:16:59,720 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 01:16:59,721 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 01:16:59,721 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-15 01:16:59,721 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-15 01:16:59,721 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 01:16:59,721 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 01:16:59,722 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptVerify_spec__1 [2019-10-15 01:16:59,722 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 01:16:59,722 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:16:59,722 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:16:59,722 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 01:16:59,723 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:16:59,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:16:59,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:16:59,723 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:16:59,723 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 01:16:59,724 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:16:59,724 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 01:16:59,724 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 01:16:59,724 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:16:59,724 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 01:16:59,724 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 01:16:59,725 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 01:16:59,725 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 01:16:59,725 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 01:16:59,725 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 01:16:59,725 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 01:16:59,725 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 01:16:59,726 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 01:16:59,726 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 01:16:59,726 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 01:16:59,726 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 01:16:59,726 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 01:16:59,726 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 01:16:59,727 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 01:16:59,727 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 01:16:59,727 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 01:16:59,727 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 01:16:59,727 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 01:16:59,727 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 01:16:59,727 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 01:16:59,728 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 01:16:59,728 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 01:16:59,728 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 01:16:59,728 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 01:16:59,728 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 01:16:59,729 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 01:16:59,729 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 01:16:59,729 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 01:16:59,729 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 01:16:59,729 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 01:16:59,729 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 01:16:59,730 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 01:16:59,730 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 01:16:59,730 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 01:16:59,730 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 01:16:59,730 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 01:16:59,730 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 01:16:59,730 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 01:16:59,731 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 01:16:59,731 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-15 01:16:59,731 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-15 01:16:59,731 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-15 01:16:59,731 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-15 01:16:59,731 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 01:16:59,732 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-15 01:16:59,732 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-15 01:16:59,732 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-15 01:16:59,732 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-15 01:16:59,732 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-15 01:16:59,732 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:16:59,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 01:16:59,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:17:01,902 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:17:01,902 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 01:17:01,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:17:01 BoogieIcfgContainer [2019-10-15 01:17:01,905 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:17:01,906 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:17:01,906 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:17:01,910 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:17:01,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:16:58" (1/3) ... [2019-10-15 01:17:01,911 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cccf6f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:17:01, skipping insertion in model container [2019-10-15 01:17:01,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:59" (2/3) ... [2019-10-15 01:17:01,912 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cccf6f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:17:01, skipping insertion in model container [2019-10-15 01:17:01,912 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:17:01" (3/3) ... [2019-10-15 01:17:01,914 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec7_product34.cil.c [2019-10-15 01:17:01,925 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:17:01,936 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:17:01,949 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:17:01,995 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:17:01,995 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:17:01,995 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:17:01,995 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:17:01,996 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:17:01,999 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:17:01,999 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:17:01,999 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:17:02,043 INFO L276 IsEmpty]: Start isEmpty. Operand 647 states. [2019-10-15 01:17:02,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2019-10-15 01:17:02,078 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:02,080 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:17:02,083 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:02,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:02,090 INFO L82 PathProgramCache]: Analyzing trace with hash -2043582156, now seen corresponding path program 1 times [2019-10-15 01:17:02,100 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:02,101 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417111885] [2019-10-15 01:17:02,101 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:02,101 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:02,102 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:02,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:02,788 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:17:02,788 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417111885] [2019-10-15 01:17:02,789 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:02,790 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 01:17:02,790 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980083640] [2019-10-15 01:17:02,798 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:17:02,800 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:02,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:17:02,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:17:02,819 INFO L87 Difference]: Start difference. First operand 647 states. Second operand 2 states. [2019-10-15 01:17:02,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:02,959 INFO L93 Difference]: Finished difference Result 980 states and 1322 transitions. [2019-10-15 01:17:02,959 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:17:02,961 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 191 [2019-10-15 01:17:02,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:02,996 INFO L225 Difference]: With dead ends: 980 [2019-10-15 01:17:02,996 INFO L226 Difference]: Without dead ends: 618 [2019-10-15 01:17:03,008 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:17:03,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 618 states. [2019-10-15 01:17:03,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 618 to 618. [2019-10-15 01:17:03,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 618 states. [2019-10-15 01:17:03,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 618 states and 838 transitions. [2019-10-15 01:17:03,134 INFO L78 Accepts]: Start accepts. Automaton has 618 states and 838 transitions. Word has length 191 [2019-10-15 01:17:03,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:03,136 INFO L462 AbstractCegarLoop]: Abstraction has 618 states and 838 transitions. [2019-10-15 01:17:03,136 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:17:03,136 INFO L276 IsEmpty]: Start isEmpty. Operand 618 states and 838 transitions. [2019-10-15 01:17:03,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2019-10-15 01:17:03,142 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:03,142 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:17:03,142 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:03,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:03,143 INFO L82 PathProgramCache]: Analyzing trace with hash 1146061920, now seen corresponding path program 1 times [2019-10-15 01:17:03,143 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:03,143 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213392150] [2019-10-15 01:17:03,143 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:03,144 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:03,144 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:03,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:03,443 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:17:03,443 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213392150] [2019-10-15 01:17:03,443 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:03,444 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:17:03,444 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104768386] [2019-10-15 01:17:03,452 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:17:03,453 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:03,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:17:03,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:17:03,453 INFO L87 Difference]: Start difference. First operand 618 states and 838 transitions. Second operand 3 states. [2019-10-15 01:17:03,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:03,530 INFO L93 Difference]: Finished difference Result 963 states and 1284 transitions. [2019-10-15 01:17:03,531 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:17:03,531 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 192 [2019-10-15 01:17:03,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:03,536 INFO L225 Difference]: With dead ends: 963 [2019-10-15 01:17:03,536 INFO L226 Difference]: Without dead ends: 621 [2019-10-15 01:17:03,539 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:17:03,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states. [2019-10-15 01:17:03,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 620. [2019-10-15 01:17:03,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 620 states. [2019-10-15 01:17:03,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 620 states to 620 states and 840 transitions. [2019-10-15 01:17:03,593 INFO L78 Accepts]: Start accepts. Automaton has 620 states and 840 transitions. Word has length 192 [2019-10-15 01:17:03,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:03,595 INFO L462 AbstractCegarLoop]: Abstraction has 620 states and 840 transitions. [2019-10-15 01:17:03,595 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:17:03,595 INFO L276 IsEmpty]: Start isEmpty. Operand 620 states and 840 transitions. [2019-10-15 01:17:03,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2019-10-15 01:17:03,602 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:03,603 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:17:03,603 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:03,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:03,603 INFO L82 PathProgramCache]: Analyzing trace with hash -1233594516, now seen corresponding path program 1 times [2019-10-15 01:17:03,604 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:03,604 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061317066] [2019-10-15 01:17:03,604 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:03,604 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:03,604 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:03,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:03,766 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:17:03,767 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061317066] [2019-10-15 01:17:03,767 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:03,767 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:17:03,768 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440438748] [2019-10-15 01:17:03,768 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:17:03,769 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:03,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:17:03,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:17:03,770 INFO L87 Difference]: Start difference. First operand 620 states and 840 transitions. Second operand 3 states. [2019-10-15 01:17:03,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:03,814 INFO L93 Difference]: Finished difference Result 1218 states and 1681 transitions. [2019-10-15 01:17:03,814 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:17:03,814 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 198 [2019-10-15 01:17:03,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:03,820 INFO L225 Difference]: With dead ends: 1218 [2019-10-15 01:17:03,820 INFO L226 Difference]: Without dead ends: 663 [2019-10-15 01:17:03,823 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:17:03,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 663 states. [2019-10-15 01:17:03,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 663 to 662. [2019-10-15 01:17:03,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 662 states. [2019-10-15 01:17:03,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 912 transitions. [2019-10-15 01:17:03,940 INFO L78 Accepts]: Start accepts. Automaton has 662 states and 912 transitions. Word has length 198 [2019-10-15 01:17:03,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:03,941 INFO L462 AbstractCegarLoop]: Abstraction has 662 states and 912 transitions. [2019-10-15 01:17:03,941 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:17:03,941 INFO L276 IsEmpty]: Start isEmpty. Operand 662 states and 912 transitions. [2019-10-15 01:17:03,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2019-10-15 01:17:03,946 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:03,947 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:17:03,947 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:03,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:03,948 INFO L82 PathProgramCache]: Analyzing trace with hash -1272697570, now seen corresponding path program 1 times [2019-10-15 01:17:03,948 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:03,948 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090686851] [2019-10-15 01:17:03,948 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:03,949 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:03,949 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:04,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:04,505 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2019-10-15 01:17:04,506 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090686851] [2019-10-15 01:17:04,506 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:04,506 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-10-15 01:17:04,506 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449999452] [2019-10-15 01:17:04,507 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-10-15 01:17:04,507 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:04,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-10-15 01:17:04,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2019-10-15 01:17:04,509 INFO L87 Difference]: Start difference. First operand 662 states and 912 transitions. Second operand 19 states. [2019-10-15 01:17:10,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:10,101 INFO L93 Difference]: Finished difference Result 2344 states and 3255 transitions. [2019-10-15 01:17:10,102 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2019-10-15 01:17:10,102 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 199 [2019-10-15 01:17:10,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:10,123 INFO L225 Difference]: With dead ends: 2344 [2019-10-15 01:17:10,123 INFO L226 Difference]: Without dead ends: 2015 [2019-10-15 01:17:10,126 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 708 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=287, Invalid=2683, Unknown=0, NotChecked=0, Total=2970 [2019-10-15 01:17:10,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2015 states. [2019-10-15 01:17:10,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2015 to 1978. [2019-10-15 01:17:10,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1978 states. [2019-10-15 01:17:10,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1978 states to 1978 states and 2751 transitions. [2019-10-15 01:17:10,273 INFO L78 Accepts]: Start accepts. Automaton has 1978 states and 2751 transitions. Word has length 199 [2019-10-15 01:17:10,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:10,275 INFO L462 AbstractCegarLoop]: Abstraction has 1978 states and 2751 transitions. [2019-10-15 01:17:10,275 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-10-15 01:17:10,276 INFO L276 IsEmpty]: Start isEmpty. Operand 1978 states and 2751 transitions. [2019-10-15 01:17:10,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2019-10-15 01:17:10,283 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:10,283 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:17:10,283 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:10,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:10,284 INFO L82 PathProgramCache]: Analyzing trace with hash -578893885, now seen corresponding path program 1 times [2019-10-15 01:17:10,284 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:10,285 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138284203] [2019-10-15 01:17:10,285 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:10,285 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:10,285 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:10,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:10,620 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:17:10,621 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138284203] [2019-10-15 01:17:10,621 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:10,621 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-10-15 01:17:10,622 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156300779] [2019-10-15 01:17:10,622 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-15 01:17:10,623 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:10,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-15 01:17:10,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2019-10-15 01:17:10,624 INFO L87 Difference]: Start difference. First operand 1978 states and 2751 transitions. Second operand 13 states. [2019-10-15 01:17:11,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:11,268 INFO L93 Difference]: Finished difference Result 3495 states and 4856 transitions. [2019-10-15 01:17:11,268 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-15 01:17:11,268 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 200 [2019-10-15 01:17:11,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:11,284 INFO L225 Difference]: With dead ends: 3495 [2019-10-15 01:17:11,284 INFO L226 Difference]: Without dead ends: 2112 [2019-10-15 01:17:11,291 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=433, Unknown=0, NotChecked=0, Total=506 [2019-10-15 01:17:11,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2112 states. [2019-10-15 01:17:11,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2112 to 2112. [2019-10-15 01:17:11,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2112 states. [2019-10-15 01:17:11,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2112 states to 2112 states and 2968 transitions. [2019-10-15 01:17:11,479 INFO L78 Accepts]: Start accepts. Automaton has 2112 states and 2968 transitions. Word has length 200 [2019-10-15 01:17:11,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:11,480 INFO L462 AbstractCegarLoop]: Abstraction has 2112 states and 2968 transitions. [2019-10-15 01:17:11,480 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-10-15 01:17:11,480 INFO L276 IsEmpty]: Start isEmpty. Operand 2112 states and 2968 transitions. [2019-10-15 01:17:11,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2019-10-15 01:17:11,487 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:11,487 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:17:11,487 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:11,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:11,488 INFO L82 PathProgramCache]: Analyzing trace with hash -1707911070, now seen corresponding path program 1 times [2019-10-15 01:17:11,488 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:11,488 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418725523] [2019-10-15 01:17:11,488 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:11,489 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:11,489 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:11,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:11,783 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2019-10-15 01:17:11,783 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418725523] [2019-10-15 01:17:11,784 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:11,784 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2019-10-15 01:17:11,785 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460634893] [2019-10-15 01:17:11,785 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-10-15 01:17:11,786 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:11,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-10-15 01:17:11,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2019-10-15 01:17:11,786 INFO L87 Difference]: Start difference. First operand 2112 states and 2968 transitions. Second operand 15 states. [2019-10-15 01:17:16,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:16,123 INFO L93 Difference]: Finished difference Result 3667 states and 5151 transitions. [2019-10-15 01:17:16,123 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2019-10-15 01:17:16,123 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 200 [2019-10-15 01:17:16,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:16,142 INFO L225 Difference]: With dead ends: 3667 [2019-10-15 01:17:16,142 INFO L226 Difference]: Without dead ends: 2230 [2019-10-15 01:17:16,148 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 513 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=229, Invalid=1933, Unknown=0, NotChecked=0, Total=2162 [2019-10-15 01:17:16,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2230 states. [2019-10-15 01:17:16,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2230 to 2193. [2019-10-15 01:17:16,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2193 states. [2019-10-15 01:17:16,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2193 states to 2193 states and 3108 transitions. [2019-10-15 01:17:16,286 INFO L78 Accepts]: Start accepts. Automaton has 2193 states and 3108 transitions. Word has length 200 [2019-10-15 01:17:16,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:16,288 INFO L462 AbstractCegarLoop]: Abstraction has 2193 states and 3108 transitions. [2019-10-15 01:17:16,288 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-10-15 01:17:16,288 INFO L276 IsEmpty]: Start isEmpty. Operand 2193 states and 3108 transitions. [2019-10-15 01:17:16,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2019-10-15 01:17:16,298 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:16,298 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:17:16,302 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:16,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:16,303 INFO L82 PathProgramCache]: Analyzing trace with hash -1247468478, now seen corresponding path program 1 times [2019-10-15 01:17:16,303 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:16,304 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277526685] [2019-10-15 01:17:16,304 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:16,304 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:16,304 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:16,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:16,503 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2019-10-15 01:17:16,503 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277526685] [2019-10-15 01:17:16,503 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:16,503 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 01:17:16,504 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869352451] [2019-10-15 01:17:16,504 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:17:16,504 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:16,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:17:16,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:17:16,506 INFO L87 Difference]: Start difference. First operand 2193 states and 3108 transitions. Second operand 5 states. [2019-10-15 01:17:16,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:16,620 INFO L93 Difference]: Finished difference Result 3332 states and 4650 transitions. [2019-10-15 01:17:16,620 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 01:17:16,620 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 203 [2019-10-15 01:17:16,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:16,632 INFO L225 Difference]: With dead ends: 3332 [2019-10-15 01:17:16,632 INFO L226 Difference]: Without dead ends: 1767 [2019-10-15 01:17:16,645 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:17:16,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1767 states. [2019-10-15 01:17:16,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1767 to 1767. [2019-10-15 01:17:16,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1767 states. [2019-10-15 01:17:16,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1767 states to 1767 states and 2502 transitions. [2019-10-15 01:17:16,764 INFO L78 Accepts]: Start accepts. Automaton has 1767 states and 2502 transitions. Word has length 203 [2019-10-15 01:17:16,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:16,765 INFO L462 AbstractCegarLoop]: Abstraction has 1767 states and 2502 transitions. [2019-10-15 01:17:16,765 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:17:16,765 INFO L276 IsEmpty]: Start isEmpty. Operand 1767 states and 2502 transitions. [2019-10-15 01:17:16,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2019-10-15 01:17:16,774 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:16,775 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:17:16,775 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:16,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:16,776 INFO L82 PathProgramCache]: Analyzing trace with hash -430417368, now seen corresponding path program 1 times [2019-10-15 01:17:16,776 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:16,776 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162995978] [2019-10-15 01:17:16,777 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:16,777 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:16,777 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:16,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:17,145 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2019-10-15 01:17:17,146 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162995978] [2019-10-15 01:17:17,146 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:17,147 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2019-10-15 01:17:17,147 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015324457] [2019-10-15 01:17:17,148 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-10-15 01:17:17,149 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:17,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-10-15 01:17:17,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2019-10-15 01:17:17,150 INFO L87 Difference]: Start difference. First operand 1767 states and 2502 transitions. Second operand 18 states. [2019-10-15 01:17:17,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:17,710 INFO L93 Difference]: Finished difference Result 2936 states and 4113 transitions. [2019-10-15 01:17:17,710 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-10-15 01:17:17,710 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 200 [2019-10-15 01:17:17,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:17,724 INFO L225 Difference]: With dead ends: 2936 [2019-10-15 01:17:17,724 INFO L226 Difference]: Without dead ends: 1799 [2019-10-15 01:17:17,731 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2019-10-15 01:17:17,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1799 states. [2019-10-15 01:17:17,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1799 to 1797. [2019-10-15 01:17:17,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1797 states. [2019-10-15 01:17:17,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1797 states to 1797 states and 2531 transitions. [2019-10-15 01:17:17,808 INFO L78 Accepts]: Start accepts. Automaton has 1797 states and 2531 transitions. Word has length 200 [2019-10-15 01:17:17,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:17,809 INFO L462 AbstractCegarLoop]: Abstraction has 1797 states and 2531 transitions. [2019-10-15 01:17:17,809 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-10-15 01:17:17,810 INFO L276 IsEmpty]: Start isEmpty. Operand 1797 states and 2531 transitions. [2019-10-15 01:17:17,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2019-10-15 01:17:17,816 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:17,816 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:17:17,817 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:17,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:17,817 INFO L82 PathProgramCache]: Analyzing trace with hash -1294591828, now seen corresponding path program 1 times [2019-10-15 01:17:17,817 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:17,817 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429772395] [2019-10-15 01:17:17,818 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:17,818 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:17,818 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:17,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:17,997 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:17:17,997 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429772395] [2019-10-15 01:17:17,997 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:17,997 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 01:17:17,998 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728327582] [2019-10-15 01:17:17,998 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:17:17,998 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:17,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:17:17,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:17:17,999 INFO L87 Difference]: Start difference. First operand 1797 states and 2531 transitions. Second operand 5 states. [2019-10-15 01:17:19,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:19,324 INFO L93 Difference]: Finished difference Result 4842 states and 6862 transitions. [2019-10-15 01:17:19,325 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:17:19,325 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 200 [2019-10-15 01:17:19,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:19,350 INFO L225 Difference]: With dead ends: 4842 [2019-10-15 01:17:19,350 INFO L226 Difference]: Without dead ends: 4045 [2019-10-15 01:17:19,356 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-15 01:17:19,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4045 states. [2019-10-15 01:17:19,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4045 to 4031. [2019-10-15 01:17:19,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4031 states. [2019-10-15 01:17:19,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4031 states to 4031 states and 5704 transitions. [2019-10-15 01:17:19,577 INFO L78 Accepts]: Start accepts. Automaton has 4031 states and 5704 transitions. Word has length 200 [2019-10-15 01:17:19,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:19,579 INFO L462 AbstractCegarLoop]: Abstraction has 4031 states and 5704 transitions. [2019-10-15 01:17:19,579 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:17:19,579 INFO L276 IsEmpty]: Start isEmpty. Operand 4031 states and 5704 transitions. [2019-10-15 01:17:19,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2019-10-15 01:17:19,591 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:19,592 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:17:19,592 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:19,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:19,593 INFO L82 PathProgramCache]: Analyzing trace with hash -1274254453, now seen corresponding path program 1 times [2019-10-15 01:17:19,593 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:19,593 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889920223] [2019-10-15 01:17:19,593 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:19,593 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:19,593 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:19,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:19,873 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:17:19,873 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889920223] [2019-10-15 01:17:19,874 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:19,874 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 01:17:19,875 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113954227] [2019-10-15 01:17:19,876 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 01:17:19,877 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:19,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 01:17:19,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 01:17:19,877 INFO L87 Difference]: Start difference. First operand 4031 states and 5704 transitions. Second operand 7 states. [2019-10-15 01:17:22,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:22,527 INFO L93 Difference]: Finished difference Result 13480 states and 20830 transitions. [2019-10-15 01:17:22,529 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-15 01:17:22,529 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 200 [2019-10-15 01:17:22,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:22,605 INFO L225 Difference]: With dead ends: 13480 [2019-10-15 01:17:22,606 INFO L226 Difference]: Without dead ends: 10373 [2019-10-15 01:17:22,628 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2019-10-15 01:17:22,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10373 states. [2019-10-15 01:17:23,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10373 to 10363. [2019-10-15 01:17:23,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10363 states. [2019-10-15 01:17:23,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10363 states to 10363 states and 15752 transitions. [2019-10-15 01:17:23,191 INFO L78 Accepts]: Start accepts. Automaton has 10363 states and 15752 transitions. Word has length 200 [2019-10-15 01:17:23,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:23,192 INFO L462 AbstractCegarLoop]: Abstraction has 10363 states and 15752 transitions. [2019-10-15 01:17:23,192 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 01:17:23,192 INFO L276 IsEmpty]: Start isEmpty. Operand 10363 states and 15752 transitions. [2019-10-15 01:17:23,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2019-10-15 01:17:23,200 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:23,201 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:17:23,201 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:23,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:23,201 INFO L82 PathProgramCache]: Analyzing trace with hash 1884885610, now seen corresponding path program 1 times [2019-10-15 01:17:23,202 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:23,202 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77599604] [2019-10-15 01:17:23,202 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:23,202 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:23,202 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:23,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:23,832 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:17:23,832 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77599604] [2019-10-15 01:17:23,832 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:23,833 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2019-10-15 01:17:23,833 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992639197] [2019-10-15 01:17:23,833 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2019-10-15 01:17:23,834 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:23,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2019-10-15 01:17:23,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=703, Unknown=0, NotChecked=0, Total=756 [2019-10-15 01:17:23,834 INFO L87 Difference]: Start difference. First operand 10363 states and 15752 transitions. Second operand 28 states. [2019-10-15 01:17:25,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:25,063 INFO L93 Difference]: Finished difference Result 20153 states and 31327 transitions. [2019-10-15 01:17:25,063 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2019-10-15 01:17:25,063 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 201 [2019-10-15 01:17:25,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:25,134 INFO L225 Difference]: With dead ends: 20153 [2019-10-15 01:17:25,134 INFO L226 Difference]: Without dead ends: 10714 [2019-10-15 01:17:25,190 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=101, Invalid=1459, Unknown=0, NotChecked=0, Total=1560 [2019-10-15 01:17:25,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10714 states. [2019-10-15 01:17:26,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10714 to 10689. [2019-10-15 01:17:26,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10689 states. [2019-10-15 01:17:26,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10689 states to 10689 states and 16211 transitions. [2019-10-15 01:17:26,343 INFO L78 Accepts]: Start accepts. Automaton has 10689 states and 16211 transitions. Word has length 201 [2019-10-15 01:17:26,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:26,344 INFO L462 AbstractCegarLoop]: Abstraction has 10689 states and 16211 transitions. [2019-10-15 01:17:26,344 INFO L463 AbstractCegarLoop]: Interpolant automaton has 28 states. [2019-10-15 01:17:26,345 INFO L276 IsEmpty]: Start isEmpty. Operand 10689 states and 16211 transitions. [2019-10-15 01:17:26,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2019-10-15 01:17:26,354 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:26,354 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:17:26,355 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:26,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:26,355 INFO L82 PathProgramCache]: Analyzing trace with hash -1510972251, now seen corresponding path program 1 times [2019-10-15 01:17:26,355 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:26,355 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814425067] [2019-10-15 01:17:26,356 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:26,356 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:26,356 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:26,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:26,576 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:17:26,577 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814425067] [2019-10-15 01:17:26,577 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:26,577 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-15 01:17:26,577 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024161765] [2019-10-15 01:17:26,578 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-15 01:17:26,578 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:26,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-15 01:17:26,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-15 01:17:26,579 INFO L87 Difference]: Start difference. First operand 10689 states and 16211 transitions. Second operand 10 states. [2019-10-15 01:17:26,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:26,783 INFO L93 Difference]: Finished difference Result 10788 states and 16397 transitions. [2019-10-15 01:17:26,784 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-15 01:17:26,784 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 205 [2019-10-15 01:17:26,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:26,836 INFO L225 Difference]: With dead ends: 10788 [2019-10-15 01:17:26,836 INFO L226 Difference]: Without dead ends: 10785 [2019-10-15 01:17:26,845 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-15 01:17:26,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10785 states. [2019-10-15 01:17:27,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10785 to 10785. [2019-10-15 01:17:27,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10785 states. [2019-10-15 01:17:27,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10785 states to 10785 states and 16363 transitions. [2019-10-15 01:17:27,467 INFO L78 Accepts]: Start accepts. Automaton has 10785 states and 16363 transitions. Word has length 205 [2019-10-15 01:17:27,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:27,467 INFO L462 AbstractCegarLoop]: Abstraction has 10785 states and 16363 transitions. [2019-10-15 01:17:27,467 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-15 01:17:27,467 INFO L276 IsEmpty]: Start isEmpty. Operand 10785 states and 16363 transitions. [2019-10-15 01:17:27,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2019-10-15 01:17:27,477 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:27,477 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:17:27,477 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:27,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:27,478 INFO L82 PathProgramCache]: Analyzing trace with hash -125913428, now seen corresponding path program 1 times [2019-10-15 01:17:27,478 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:27,478 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133046271] [2019-10-15 01:17:27,478 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:27,479 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:27,479 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:27,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:27,630 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:17:27,630 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133046271] [2019-10-15 01:17:27,631 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:27,631 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 01:17:27,631 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506930176] [2019-10-15 01:17:27,631 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:17:27,632 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:27,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:17:27,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:17:27,632 INFO L87 Difference]: Start difference. First operand 10785 states and 16363 transitions. Second operand 5 states. [2019-10-15 01:17:28,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:28,025 INFO L93 Difference]: Finished difference Result 20853 states and 32089 transitions. [2019-10-15 01:17:28,025 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 01:17:28,025 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 210 [2019-10-15 01:17:28,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:28,085 INFO L225 Difference]: With dead ends: 20853 [2019-10-15 01:17:28,085 INFO L226 Difference]: Without dead ends: 11040 [2019-10-15 01:17:28,128 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:17:28,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11040 states. [2019-10-15 01:17:28,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11040 to 10889. [2019-10-15 01:17:28,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10889 states. [2019-10-15 01:17:28,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10889 states to 10889 states and 16480 transitions. [2019-10-15 01:17:28,819 INFO L78 Accepts]: Start accepts. Automaton has 10889 states and 16480 transitions. Word has length 210 [2019-10-15 01:17:28,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:28,820 INFO L462 AbstractCegarLoop]: Abstraction has 10889 states and 16480 transitions. [2019-10-15 01:17:28,820 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:17:28,820 INFO L276 IsEmpty]: Start isEmpty. Operand 10889 states and 16480 transitions. [2019-10-15 01:17:28,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2019-10-15 01:17:28,830 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:28,830 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:17:28,831 INFO L410 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:28,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:28,831 INFO L82 PathProgramCache]: Analyzing trace with hash 1745370427, now seen corresponding path program 1 times [2019-10-15 01:17:28,831 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:28,831 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216570491] [2019-10-15 01:17:28,832 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:28,832 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:28,832 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:28,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:28,989 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:17:28,989 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216570491] [2019-10-15 01:17:28,990 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:28,990 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 01:17:28,990 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873407671] [2019-10-15 01:17:28,991 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 01:17:28,991 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:28,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 01:17:28,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:17:28,992 INFO L87 Difference]: Start difference. First operand 10889 states and 16480 transitions. Second operand 6 states.