/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/product-lines/email_spec7_productSimulator.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 00:55:07,757 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 00:55:07,761 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 00:55:07,779 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 00:55:07,780 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 00:55:07,781 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 00:55:07,783 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 00:55:07,793 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 00:55:07,796 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 00:55:07,800 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 00:55:07,801 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 00:55:07,803 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 00:55:07,803 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 00:55:07,805 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 00:55:07,807 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 00:55:07,808 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 00:55:07,810 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 00:55:07,811 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 00:55:07,812 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 00:55:07,816 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 00:55:07,820 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 00:55:07,823 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 00:55:07,825 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 00:55:07,826 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 00:55:07,828 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 00:55:07,829 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 00:55:07,829 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 00:55:07,831 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 00:55:07,831 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 00:55:07,833 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 00:55:07,833 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 00:55:07,834 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 00:55:07,834 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 00:55:07,835 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 00:55:07,836 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 00:55:07,837 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 00:55:07,837 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 00:55:07,837 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 00:55:07,838 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 00:55:07,838 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 00:55:07,839 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 00:55:07,840 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-07 00:55:07,871 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 00:55:07,872 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 00:55:07,878 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 00:55:07,878 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 00:55:07,879 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 00:55:07,879 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 00:55:07,879 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 00:55:07,879 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 00:55:07,879 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 00:55:07,880 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 00:55:07,880 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 00:55:07,880 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 00:55:07,880 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 00:55:07,880 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 00:55:07,880 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 00:55:07,882 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 00:55:07,882 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 00:55:07,882 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 00:55:07,883 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 00:55:07,883 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 00:55:07,883 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 00:55:07,883 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 00:55:07,883 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 00:55:07,884 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 00:55:07,884 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 00:55:07,884 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 00:55:07,884 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 00:55:07,884 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 00:55:07,885 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-11-07 00:55:08,161 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 00:55:08,178 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 00:55:08,181 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 00:55:08,183 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 00:55:08,184 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 00:55:08,184 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec7_productSimulator.cil.c [2019-11-07 00:55:08,264 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e439d612/f8fcb62cf61046ebb7a763b28540bf6e/FLAG7cd744344 [2019-11-07 00:55:08,919 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 00:55:08,919 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec7_productSimulator.cil.c [2019-11-07 00:55:08,941 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e439d612/f8fcb62cf61046ebb7a763b28540bf6e/FLAG7cd744344 [2019-11-07 00:55:09,098 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e439d612/f8fcb62cf61046ebb7a763b28540bf6e [2019-11-07 00:55:09,106 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 00:55:09,107 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 00:55:09,108 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 00:55:09,108 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 00:55:09,114 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 00:55:09,115 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:55:09" (1/1) ... [2019-11-07 00:55:09,117 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56d482f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:55:09, skipping insertion in model container [2019-11-07 00:55:09,118 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:55:09" (1/1) ... [2019-11-07 00:55:09,126 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 00:55:09,211 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 00:55:10,166 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:55:10,193 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 00:55:10,367 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:55:10,536 INFO L192 MainTranslator]: Completed translation [2019-11-07 00:55:10,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:55:10 WrapperNode [2019-11-07 00:55:10,537 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 00:55:10,537 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 00:55:10,538 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 00:55:10,538 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 00:55:10,552 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:55:10" (1/1) ... [2019-11-07 00:55:10,552 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:55:10" (1/1) ... [2019-11-07 00:55:10,620 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:55:10" (1/1) ... [2019-11-07 00:55:10,620 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:55:10" (1/1) ... [2019-11-07 00:55:10,707 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:55:10" (1/1) ... [2019-11-07 00:55:10,726 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:55:10" (1/1) ... [2019-11-07 00:55:10,739 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:55:10" (1/1) ... [2019-11-07 00:55:10,763 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 00:55:10,764 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 00:55:10,764 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 00:55:10,764 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 00:55:10,769 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:55:10" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 00:55:10,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 00:55:10,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 00:55:10,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-07 00:55:10,855 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-11-07 00:55:10,855 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Encrypt [2019-11-07 00:55:10,855 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__role__Encrypt [2019-11-07 00:55:10,855 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__AddressBook [2019-11-07 00:55:10,856 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__role__AddressBook [2019-11-07 00:55:10,856 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Sign [2019-11-07 00:55:10,856 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__role__Sign [2019-11-07 00:55:10,856 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-11-07 00:55:10,856 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-11-07 00:55:10,857 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__AutoResponder [2019-11-07 00:55:10,857 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__role__AutoResponder [2019-11-07 00:55:10,857 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Forward [2019-11-07 00:55:10,857 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__role__Forward [2019-11-07 00:55:10,858 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Verify [2019-11-07 00:55:10,858 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__role__Verify [2019-11-07 00:55:10,858 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Decrypt [2019-11-07 00:55:10,859 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__role__Decrypt [2019-11-07 00:55:10,859 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-11-07 00:55:10,860 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-11-07 00:55:10,860 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-11-07 00:55:10,860 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-11-07 00:55:10,860 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-11-07 00:55:10,860 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-11-07 00:55:10,860 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-11-07 00:55:10,861 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-11-07 00:55:10,861 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-11-07 00:55:10,861 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-11-07 00:55:10,861 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-11-07 00:55:10,861 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-11-07 00:55:10,862 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-11-07 00:55:10,862 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-11-07 00:55:10,862 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-11-07 00:55:10,862 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-11-07 00:55:10,863 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-11-07 00:55:10,863 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-11-07 00:55:10,863 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-11-07 00:55:10,863 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-11-07 00:55:10,863 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-11-07 00:55:10,864 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-11-07 00:55:10,864 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-11-07 00:55:10,864 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-11-07 00:55:10,864 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-11-07 00:55:10,864 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-11-07 00:55:10,864 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-11-07 00:55:10,885 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-11-07 00:55:10,885 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-11-07 00:55:10,885 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-11-07 00:55:10,885 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-11-07 00:55:10,885 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-11-07 00:55:10,886 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-11-07 00:55:10,886 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-11-07 00:55:10,886 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-11-07 00:55:10,886 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__before__Keys [2019-11-07 00:55:10,886 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__role__Keys [2019-11-07 00:55:10,886 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-11-07 00:55:10,887 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__before__Keys [2019-11-07 00:55:10,887 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__role__Keys [2019-11-07 00:55:10,887 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-11-07 00:55:10,887 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__before__Keys [2019-11-07 00:55:10,887 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__role__Keys [2019-11-07 00:55:10,888 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-11-07 00:55:10,888 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-11-07 00:55:10,888 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-11-07 00:55:10,888 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-07 00:55:10,888 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 00:55:10,888 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-11-07 00:55:10,888 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-11-07 00:55:10,889 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-11-07 00:55:10,889 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-11-07 00:55:10,889 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-11-07 00:55:10,890 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-11-07 00:55:10,890 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-11-07 00:55:10,890 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-11-07 00:55:10,890 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-11-07 00:55:10,891 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-11-07 00:55:10,891 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-11-07 00:55:10,891 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-11-07 00:55:10,892 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptVerify_spec__1 [2019-11-07 00:55:10,892 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Encrypt [2019-11-07 00:55:10,892 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__role__Encrypt [2019-11-07 00:55:10,893 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Sign [2019-11-07 00:55:10,893 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__role__Sign [2019-11-07 00:55:10,893 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Verify [2019-11-07 00:55:10,894 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__role__Verify [2019-11-07 00:55:10,894 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-11-07 00:55:10,894 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__before__Encrypt [2019-11-07 00:55:10,895 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__role__Encrypt [2019-11-07 00:55:10,895 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-11-07 00:55:10,895 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-11-07 00:55:10,895 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-11-07 00:55:10,895 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-11-07 00:55:10,895 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-11-07 00:55:10,896 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-11-07 00:55:10,896 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-11-07 00:55:10,896 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-11-07 00:55:10,896 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-11-07 00:55:10,896 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-11-07 00:55:10,896 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-11-07 00:55:10,896 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-11-07 00:55:10,897 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-11-07 00:55:10,897 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-11-07 00:55:10,897 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-11-07 00:55:10,897 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-11-07 00:55:10,897 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-11-07 00:55:10,897 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-11-07 00:55:10,897 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-11-07 00:55:10,898 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-11-07 00:55:10,898 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-11-07 00:55:10,898 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-11-07 00:55:10,898 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-11-07 00:55:10,898 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-11-07 00:55:10,898 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-11-07 00:55:10,898 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-11-07 00:55:10,899 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-11-07 00:55:10,899 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-11-07 00:55:10,899 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-11-07 00:55:10,899 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-11-07 00:55:10,900 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-11-07 00:55:10,900 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-11-07 00:55:10,900 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-07 00:55:10,900 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-07 00:55:10,902 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-07 00:55:10,902 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-07 00:55:10,902 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-07 00:55:10,902 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-11-07 00:55:10,902 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-07 00:55:10,902 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-07 00:55:10,903 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-07 00:55:10,903 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-07 00:55:10,903 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-07 00:55:10,903 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-07 00:55:10,904 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-07 00:55:10,904 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 00:55:10,905 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 00:55:10,908 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-07 00:55:10,908 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-11-07 00:55:10,908 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-11-07 00:55:10,908 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-11-07 00:55:10,909 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-11-07 00:55:10,909 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-11-07 00:55:10,909 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-11-07 00:55:10,916 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-11-07 00:55:10,916 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-11-07 00:55:10,916 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-11-07 00:55:10,917 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-11-07 00:55:10,917 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-11-07 00:55:10,917 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-11-07 00:55:10,917 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-11-07 00:55:10,917 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-11-07 00:55:10,917 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-11-07 00:55:10,917 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-11-07 00:55:10,918 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-11-07 00:55:10,918 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-11-07 00:55:10,918 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-11-07 00:55:10,918 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-11-07 00:55:10,918 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-11-07 00:55:10,919 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-11-07 00:55:10,919 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-11-07 00:55:10,919 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-11-07 00:55:10,919 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-11-07 00:55:10,919 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-11-07 00:55:10,919 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-11-07 00:55:10,919 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-11-07 00:55:10,920 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-11-07 00:55:10,920 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-11-07 00:55:10,920 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-11-07 00:55:10,920 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-11-07 00:55:10,920 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-11-07 00:55:10,920 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-11-07 00:55:10,920 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-11-07 00:55:10,920 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-11-07 00:55:10,921 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-11-07 00:55:10,921 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-11-07 00:55:10,921 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-11-07 00:55:10,921 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-11-07 00:55:10,921 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-11-07 00:55:10,921 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-11-07 00:55:10,921 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-11-07 00:55:10,921 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 00:55:10,922 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Encrypt [2019-11-07 00:55:10,922 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__role__Encrypt [2019-11-07 00:55:10,922 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__AddressBook [2019-11-07 00:55:10,922 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__role__AddressBook [2019-11-07 00:55:10,922 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Sign [2019-11-07 00:55:10,922 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__role__Sign [2019-11-07 00:55:10,922 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__AutoResponder [2019-11-07 00:55:10,922 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__role__AutoResponder [2019-11-07 00:55:10,923 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Forward [2019-11-07 00:55:10,923 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__role__Forward [2019-11-07 00:55:10,923 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Verify [2019-11-07 00:55:10,923 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__role__Verify [2019-11-07 00:55:10,923 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Decrypt [2019-11-07 00:55:10,923 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__role__Decrypt [2019-11-07 00:55:10,923 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptVerify_spec__1 [2019-11-07 00:55:10,923 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-11-07 00:55:10,924 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-11-07 00:55:10,924 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-11-07 00:55:10,924 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-11-07 00:55:10,924 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-11-07 00:55:10,924 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-11-07 00:55:10,924 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-11-07 00:55:10,924 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-11-07 00:55:10,925 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-11-07 00:55:10,925 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-11-07 00:55:10,925 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-11-07 00:55:10,926 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-11-07 00:55:10,927 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-11-07 00:55:10,927 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-11-07 00:55:10,927 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-11-07 00:55:10,927 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-11-07 00:55:10,927 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-11-07 00:55:10,927 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-11-07 00:55:10,927 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-11-07 00:55:10,928 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-07 00:55:10,928 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-07 00:55:10,928 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-07 00:55:10,928 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-11-07 00:55:10,928 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-11-07 00:55:10,928 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-11-07 00:55:10,928 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-11-07 00:55:10,928 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-11-07 00:55:10,929 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-07 00:55:10,929 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-07 00:55:10,929 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 00:55:10,929 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-11-07 00:55:10,929 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-11-07 00:55:10,929 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-11-07 00:55:10,929 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-11-07 00:55:10,929 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-11-07 00:55:10,930 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-11-07 00:55:10,930 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-11-07 00:55:10,930 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-11-07 00:55:10,930 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-11-07 00:55:10,930 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-11-07 00:55:10,930 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-11-07 00:55:10,930 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-11-07 00:55:10,931 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__before__Keys [2019-11-07 00:55:10,931 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__role__Keys [2019-11-07 00:55:10,931 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__before__Keys [2019-11-07 00:55:10,931 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__role__Keys [2019-11-07 00:55:10,931 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__before__Keys [2019-11-07 00:55:10,931 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__role__Keys [2019-11-07 00:55:10,931 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-07 00:55:10,931 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-11-07 00:55:10,932 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Encrypt [2019-11-07 00:55:10,932 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__role__Encrypt [2019-11-07 00:55:10,932 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Sign [2019-11-07 00:55:10,932 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__role__Sign [2019-11-07 00:55:10,932 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Verify [2019-11-07 00:55:10,932 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__role__Verify [2019-11-07 00:55:10,932 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__before__Encrypt [2019-11-07 00:55:10,932 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__role__Encrypt [2019-11-07 00:55:10,933 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-11-07 00:55:10,933 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-11-07 00:55:10,933 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-11-07 00:55:10,933 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-11-07 00:55:10,933 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-11-07 00:55:10,933 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-11-07 00:55:10,933 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-11-07 00:55:10,933 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-11-07 00:55:10,935 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-11-07 00:55:10,939 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-07 00:55:10,939 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-11-07 00:55:10,939 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-07 00:55:10,939 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 00:55:10,940 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 00:55:10,940 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-07 00:55:10,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 00:55:10,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 00:55:10,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 00:55:10,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 00:55:10,943 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-07 00:55:10,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 00:55:10,943 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-07 00:55:10,943 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-07 00:55:10,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 00:55:10,943 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-07 00:55:10,944 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-07 00:55:10,944 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-07 00:55:10,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 00:55:10,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 00:55:10,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 00:55:13,298 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 00:55:13,298 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-07 00:55:13,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:55:13 BoogieIcfgContainer [2019-11-07 00:55:13,301 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 00:55:13,301 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 00:55:13,302 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 00:55:13,305 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 00:55:13,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:55:09" (1/3) ... [2019-11-07 00:55:13,306 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4edf3ec5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:55:13, skipping insertion in model container [2019-11-07 00:55:13,306 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:55:10" (2/3) ... [2019-11-07 00:55:13,306 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4edf3ec5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:55:13, skipping insertion in model container [2019-11-07 00:55:13,307 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:55:13" (3/3) ... [2019-11-07 00:55:13,311 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec7_productSimulator.cil.c [2019-11-07 00:55:13,322 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 00:55:13,334 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 00:55:13,347 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 00:55:13,394 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 00:55:13,394 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 00:55:13,395 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 00:55:13,395 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 00:55:13,395 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 00:55:13,395 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 00:55:13,395 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 00:55:13,395 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 00:55:13,441 INFO L276 IsEmpty]: Start isEmpty. Operand 810 states. [2019-11-07 00:55:13,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2019-11-07 00:55:13,471 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:55:13,472 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:55:13,474 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:55:13,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:55:13,480 INFO L82 PathProgramCache]: Analyzing trace with hash 1981240698, now seen corresponding path program 1 times [2019-11-07 00:55:13,490 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:55:13,490 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176294112] [2019-11-07 00:55:13,490 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:55:13,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:55:14,201 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2019-11-07 00:55:14,201 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176294112] [2019-11-07 00:55:14,202 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:55:14,202 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-07 00:55:14,203 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298503800] [2019-11-07 00:55:14,208 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-07 00:55:14,209 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:55:14,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-07 00:55:14,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-07 00:55:14,226 INFO L87 Difference]: Start difference. First operand 810 states. Second operand 6 states. [2019-11-07 00:55:14,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:55:14,496 INFO L93 Difference]: Finished difference Result 1538 states and 2131 transitions. [2019-11-07 00:55:14,497 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-07 00:55:14,498 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 190 [2019-11-07 00:55:14,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:55:14,543 INFO L225 Difference]: With dead ends: 1538 [2019-11-07 00:55:14,544 INFO L226 Difference]: Without dead ends: 781 [2019-11-07 00:55:14,557 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-11-07 00:55:14,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 781 states. [2019-11-07 00:55:14,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 781 to 781. [2019-11-07 00:55:14,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 781 states. [2019-11-07 00:55:14,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 781 states to 781 states and 1063 transitions. [2019-11-07 00:55:14,710 INFO L78 Accepts]: Start accepts. Automaton has 781 states and 1063 transitions. Word has length 190 [2019-11-07 00:55:14,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:55:14,712 INFO L462 AbstractCegarLoop]: Abstraction has 781 states and 1063 transitions. [2019-11-07 00:55:14,712 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-07 00:55:14,712 INFO L276 IsEmpty]: Start isEmpty. Operand 781 states and 1063 transitions. [2019-11-07 00:55:14,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2019-11-07 00:55:14,721 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:55:14,721 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:55:14,722 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:55:14,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:55:14,722 INFO L82 PathProgramCache]: Analyzing trace with hash 109619264, now seen corresponding path program 1 times [2019-11-07 00:55:14,722 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:55:14,722 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867604228] [2019-11-07 00:55:14,723 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:55:14,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:55:15,028 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2019-11-07 00:55:15,029 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867604228] [2019-11-07 00:55:15,030 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:55:15,030 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-07 00:55:15,030 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237174747] [2019-11-07 00:55:15,034 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-07 00:55:15,036 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:55:15,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-07 00:55:15,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-07 00:55:15,037 INFO L87 Difference]: Start difference. First operand 781 states and 1063 transitions. Second operand 4 states. [2019-11-07 00:55:15,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:55:15,978 INFO L93 Difference]: Finished difference Result 1519 states and 2091 transitions. [2019-11-07 00:55:15,979 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-07 00:55:15,979 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 196 [2019-11-07 00:55:15,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:55:15,986 INFO L225 Difference]: With dead ends: 1519 [2019-11-07 00:55:15,986 INFO L226 Difference]: Without dead ends: 782 [2019-11-07 00:55:15,989 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-07 00:55:15,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 782 states. [2019-11-07 00:55:16,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 782 to 782. [2019-11-07 00:55:16,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 782 states. [2019-11-07 00:55:16,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 782 states to 782 states and 1058 transitions. [2019-11-07 00:55:16,031 INFO L78 Accepts]: Start accepts. Automaton has 782 states and 1058 transitions. Word has length 196 [2019-11-07 00:55:16,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:55:16,032 INFO L462 AbstractCegarLoop]: Abstraction has 782 states and 1058 transitions. [2019-11-07 00:55:16,032 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-07 00:55:16,032 INFO L276 IsEmpty]: Start isEmpty. Operand 782 states and 1058 transitions. [2019-11-07 00:55:16,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2019-11-07 00:55:16,038 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:55:16,038 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:55:16,038 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:55:16,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:55:16,039 INFO L82 PathProgramCache]: Analyzing trace with hash 818687885, now seen corresponding path program 1 times [2019-11-07 00:55:16,039 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:55:16,039 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628872414] [2019-11-07 00:55:16,039 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:55:16,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:55:16,372 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2019-11-07 00:55:16,372 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628872414] [2019-11-07 00:55:16,373 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:55:16,373 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:55:16,374 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253944211] [2019-11-07 00:55:16,375 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:55:16,376 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:55:16,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:55:16,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:55:16,377 INFO L87 Difference]: Start difference. First operand 782 states and 1058 transitions. Second operand 3 states. [2019-11-07 00:55:16,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:55:16,551 INFO L93 Difference]: Finished difference Result 2222 states and 3067 transitions. [2019-11-07 00:55:16,552 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:55:16,552 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 197 [2019-11-07 00:55:16,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:55:16,568 INFO L225 Difference]: With dead ends: 2222 [2019-11-07 00:55:16,569 INFO L226 Difference]: Without dead ends: 1485 [2019-11-07 00:55:16,573 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:55:16,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1485 states. [2019-11-07 00:55:16,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1485 to 1482. [2019-11-07 00:55:16,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1482 states. [2019-11-07 00:55:16,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1482 states to 1482 states and 2031 transitions. [2019-11-07 00:55:16,682 INFO L78 Accepts]: Start accepts. Automaton has 1482 states and 2031 transitions. Word has length 197 [2019-11-07 00:55:16,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:55:16,683 INFO L462 AbstractCegarLoop]: Abstraction has 1482 states and 2031 transitions. [2019-11-07 00:55:16,683 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:55:16,683 INFO L276 IsEmpty]: Start isEmpty. Operand 1482 states and 2031 transitions. [2019-11-07 00:55:16,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2019-11-07 00:55:16,692 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:55:16,692 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:55:16,692 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:55:16,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:55:16,693 INFO L82 PathProgramCache]: Analyzing trace with hash 1701488253, now seen corresponding path program 1 times [2019-11-07 00:55:16,693 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:55:16,693 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710449018] [2019-11-07 00:55:16,694 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:55:16,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:55:16,898 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2019-11-07 00:55:16,899 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710449018] [2019-11-07 00:55:16,899 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:55:16,899 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:55:16,899 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595945157] [2019-11-07 00:55:16,900 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:55:16,900 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:55:16,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:55:16,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:55:16,901 INFO L87 Difference]: Start difference. First operand 1482 states and 2031 transitions. Second operand 3 states. [2019-11-07 00:55:17,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:55:17,031 INFO L93 Difference]: Finished difference Result 1485 states and 2033 transitions. [2019-11-07 00:55:17,031 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:55:17,031 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 198 [2019-11-07 00:55:17,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:55:17,038 INFO L225 Difference]: With dead ends: 1485 [2019-11-07 00:55:17,038 INFO L226 Difference]: Without dead ends: 783 [2019-11-07 00:55:17,043 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:55:17,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 783 states. [2019-11-07 00:55:17,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 783 to 783. [2019-11-07 00:55:17,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 783 states. [2019-11-07 00:55:17,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 783 states to 783 states and 1052 transitions. [2019-11-07 00:55:17,084 INFO L78 Accepts]: Start accepts. Automaton has 783 states and 1052 transitions. Word has length 198 [2019-11-07 00:55:17,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:55:17,084 INFO L462 AbstractCegarLoop]: Abstraction has 783 states and 1052 transitions. [2019-11-07 00:55:17,084 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:55:17,085 INFO L276 IsEmpty]: Start isEmpty. Operand 783 states and 1052 transitions. [2019-11-07 00:55:17,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2019-11-07 00:55:17,089 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:55:17,089 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:55:17,089 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:55:17,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:55:17,090 INFO L82 PathProgramCache]: Analyzing trace with hash 1151446893, now seen corresponding path program 1 times [2019-11-07 00:55:17,090 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:55:17,091 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100106710] [2019-11-07 00:55:17,091 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:55:17,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:55:17,352 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2019-11-07 00:55:17,353 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100106710] [2019-11-07 00:55:17,353 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:55:17,354 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-07 00:55:17,354 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525179186] [2019-11-07 00:55:17,355 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-07 00:55:17,355 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:55:17,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-07 00:55:17,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-07 00:55:17,357 INFO L87 Difference]: Start difference. First operand 783 states and 1052 transitions. Second operand 4 states. [2019-11-07 00:55:18,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:55:18,168 INFO L93 Difference]: Finished difference Result 1503 states and 2028 transitions. [2019-11-07 00:55:18,168 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-07 00:55:18,168 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 212 [2019-11-07 00:55:18,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:55:18,175 INFO L225 Difference]: With dead ends: 1503 [2019-11-07 00:55:18,175 INFO L226 Difference]: Without dead ends: 789 [2019-11-07 00:55:18,178 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-07 00:55:18,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 789 states. [2019-11-07 00:55:18,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 789 to 783. [2019-11-07 00:55:18,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 783 states. [2019-11-07 00:55:18,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 783 states to 783 states and 1037 transitions. [2019-11-07 00:55:18,217 INFO L78 Accepts]: Start accepts. Automaton has 783 states and 1037 transitions. Word has length 212 [2019-11-07 00:55:18,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:55:18,217 INFO L462 AbstractCegarLoop]: Abstraction has 783 states and 1037 transitions. [2019-11-07 00:55:18,217 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-07 00:55:18,217 INFO L276 IsEmpty]: Start isEmpty. Operand 783 states and 1037 transitions. [2019-11-07 00:55:18,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2019-11-07 00:55:18,222 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:55:18,222 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:55:18,223 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:55:18,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:55:18,223 INFO L82 PathProgramCache]: Analyzing trace with hash 881915616, now seen corresponding path program 1 times [2019-11-07 00:55:18,223 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:55:18,224 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435441296] [2019-11-07 00:55:18,224 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:55:18,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:55:18,532 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2019-11-07 00:55:18,533 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435441296] [2019-11-07 00:55:18,534 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:55:18,535 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:55:18,535 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467323797] [2019-11-07 00:55:18,536 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:55:18,536 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:55:18,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:55:18,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:55:18,537 INFO L87 Difference]: Start difference. First operand 783 states and 1037 transitions. Second operand 3 states. [2019-11-07 00:55:18,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:55:18,592 INFO L93 Difference]: Finished difference Result 1213 states and 1589 transitions. [2019-11-07 00:55:18,593 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:55:18,593 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 239 [2019-11-07 00:55:18,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:55:18,605 INFO L225 Difference]: With dead ends: 1213 [2019-11-07 00:55:18,606 INFO L226 Difference]: Without dead ends: 786 [2019-11-07 00:55:18,608 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:55:18,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 786 states. [2019-11-07 00:55:18,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 786 to 785. [2019-11-07 00:55:18,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 785 states. [2019-11-07 00:55:18,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 785 states to 785 states and 1039 transitions. [2019-11-07 00:55:18,661 INFO L78 Accepts]: Start accepts. Automaton has 785 states and 1039 transitions. Word has length 239 [2019-11-07 00:55:18,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:55:18,665 INFO L462 AbstractCegarLoop]: Abstraction has 785 states and 1039 transitions. [2019-11-07 00:55:18,665 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:55:18,665 INFO L276 IsEmpty]: Start isEmpty. Operand 785 states and 1039 transitions. [2019-11-07 00:55:18,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2019-11-07 00:55:18,674 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:55:18,674 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:55:18,674 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:55:18,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:55:18,675 INFO L82 PathProgramCache]: Analyzing trace with hash -159986652, now seen corresponding path program 1 times [2019-11-07 00:55:18,675 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:55:18,676 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970913263] [2019-11-07 00:55:18,676 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:55:18,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:55:18,950 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2019-11-07 00:55:18,951 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970913263] [2019-11-07 00:55:18,951 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:55:18,951 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:55:18,952 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963060204] [2019-11-07 00:55:18,953 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:55:18,953 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:55:18,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:55:18,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:55:18,954 INFO L87 Difference]: Start difference. First operand 785 states and 1039 transitions. Second operand 3 states. [2019-11-07 00:55:19,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:55:19,023 INFO L93 Difference]: Finished difference Result 1502 states and 2030 transitions. [2019-11-07 00:55:19,023 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:55:19,023 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 247 [2019-11-07 00:55:19,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:55:19,029 INFO L225 Difference]: With dead ends: 1502 [2019-11-07 00:55:19,030 INFO L226 Difference]: Without dead ends: 840 [2019-11-07 00:55:19,032 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:55:19,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 840 states. [2019-11-07 00:55:19,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 840 to 839. [2019-11-07 00:55:19,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 839 states. [2019-11-07 00:55:19,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 839 states to 839 states and 1127 transitions. [2019-11-07 00:55:19,160 INFO L78 Accepts]: Start accepts. Automaton has 839 states and 1127 transitions. Word has length 247 [2019-11-07 00:55:19,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:55:19,161 INFO L462 AbstractCegarLoop]: Abstraction has 839 states and 1127 transitions. [2019-11-07 00:55:19,161 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:55:19,161 INFO L276 IsEmpty]: Start isEmpty. Operand 839 states and 1127 transitions. [2019-11-07 00:55:19,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2019-11-07 00:55:19,166 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:55:19,167 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:55:19,167 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:55:19,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:55:19,168 INFO L82 PathProgramCache]: Analyzing trace with hash 1666613841, now seen corresponding path program 1 times [2019-11-07 00:55:19,168 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:55:19,168 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199221150] [2019-11-07 00:55:19,168 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:55:19,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:55:19,456 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2019-11-07 00:55:19,457 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199221150] [2019-11-07 00:55:19,457 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:55:19,457 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-11-07 00:55:19,457 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978566272] [2019-11-07 00:55:19,459 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-07 00:55:19,459 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:55:19,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-07 00:55:19,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2019-11-07 00:55:19,460 INFO L87 Difference]: Start difference. First operand 839 states and 1127 transitions. Second operand 9 states. [2019-11-07 00:55:19,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:55:19,749 INFO L93 Difference]: Finished difference Result 846 states and 1136 transitions. [2019-11-07 00:55:19,750 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-07 00:55:19,750 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 248 [2019-11-07 00:55:19,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:55:19,756 INFO L225 Difference]: With dead ends: 846 [2019-11-07 00:55:19,756 INFO L226 Difference]: Without dead ends: 843 [2019-11-07 00:55:19,757 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2019-11-07 00:55:19,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 843 states. [2019-11-07 00:55:19,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 843 to 843. [2019-11-07 00:55:19,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 843 states. [2019-11-07 00:55:19,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 843 states to 843 states and 1133 transitions. [2019-11-07 00:55:19,807 INFO L78 Accepts]: Start accepts. Automaton has 843 states and 1133 transitions. Word has length 248 [2019-11-07 00:55:19,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:55:19,808 INFO L462 AbstractCegarLoop]: Abstraction has 843 states and 1133 transitions. [2019-11-07 00:55:19,808 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-07 00:55:19,808 INFO L276 IsEmpty]: Start isEmpty. Operand 843 states and 1133 transitions. [2019-11-07 00:55:19,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2019-11-07 00:55:19,814 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:55:19,815 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:55:19,815 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:55:19,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:55:19,815 INFO L82 PathProgramCache]: Analyzing trace with hash 316090334, now seen corresponding path program 1 times [2019-11-07 00:55:19,816 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:55:19,816 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706532919] [2019-11-07 00:55:19,816 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:55:19,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:55:20,084 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2019-11-07 00:55:20,084 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706532919] [2019-11-07 00:55:20,084 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:55:20,085 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-07 00:55:20,085 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036287508] [2019-11-07 00:55:20,085 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-07 00:55:20,086 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:55:20,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-07 00:55:20,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-07 00:55:20,086 INFO L87 Difference]: Start difference. First operand 843 states and 1133 transitions. Second operand 4 states. [2019-11-07 00:55:21,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:55:21,467 INFO L93 Difference]: Finished difference Result 2393 states and 3294 transitions. [2019-11-07 00:55:21,467 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-07 00:55:21,468 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 255 [2019-11-07 00:55:21,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:55:21,474 INFO L225 Difference]: With dead ends: 2393 [2019-11-07 00:55:21,474 INFO L226 Difference]: Without dead ends: 838 [2019-11-07 00:55:21,479 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-07 00:55:21,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2019-11-07 00:55:21,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 838. [2019-11-07 00:55:21,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 838 states. [2019-11-07 00:55:21,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1117 transitions. [2019-11-07 00:55:21,519 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1117 transitions. Word has length 255 [2019-11-07 00:55:21,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:55:21,519 INFO L462 AbstractCegarLoop]: Abstraction has 838 states and 1117 transitions. [2019-11-07 00:55:21,519 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-07 00:55:21,520 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1117 transitions. [2019-11-07 00:55:21,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2019-11-07 00:55:21,525 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:55:21,525 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:55:21,526 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:55:21,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:55:21,526 INFO L82 PathProgramCache]: Analyzing trace with hash 2003629459, now seen corresponding path program 1 times [2019-11-07 00:55:21,526 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:55:21,526 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732231012] [2019-11-07 00:55:21,527 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:55:21,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:55:21,734 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2019-11-07 00:55:21,735 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732231012] [2019-11-07 00:55:21,736 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:55:21,737 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:55:21,737 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142351684] [2019-11-07 00:55:21,737 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:55:21,739 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:55:21,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:55:21,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:55:21,740 INFO L87 Difference]: Start difference. First operand 838 states and 1117 transitions. Second operand 3 states. [2019-11-07 00:55:21,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:55:21,860 INFO L93 Difference]: Finished difference Result 1625 states and 2191 transitions. [2019-11-07 00:55:21,860 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:55:21,860 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 273 [2019-11-07 00:55:21,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:55:21,866 INFO L225 Difference]: With dead ends: 1625 [2019-11-07 00:55:21,866 INFO L226 Difference]: Without dead ends: 837 [2019-11-07 00:55:21,869 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:55:21,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 837 states. [2019-11-07 00:55:21,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 837 to 837. [2019-11-07 00:55:21,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 837 states. [2019-11-07 00:55:21,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 837 states to 837 states and 1113 transitions. [2019-11-07 00:55:21,916 INFO L78 Accepts]: Start accepts. Automaton has 837 states and 1113 transitions. Word has length 273 [2019-11-07 00:55:21,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:55:21,917 INFO L462 AbstractCegarLoop]: Abstraction has 837 states and 1113 transitions. [2019-11-07 00:55:21,917 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:55:21,917 INFO L276 IsEmpty]: Start isEmpty. Operand 837 states and 1113 transitions. [2019-11-07 00:55:21,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2019-11-07 00:55:21,923 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:55:21,923 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:55:21,923 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:55:21,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:55:21,924 INFO L82 PathProgramCache]: Analyzing trace with hash -953455789, now seen corresponding path program 1 times [2019-11-07 00:55:21,924 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:55:21,924 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930464112] [2019-11-07 00:55:21,924 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:55:21,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:55:22,362 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2019-11-07 00:55:22,362 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930464112] [2019-11-07 00:55:22,363 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:55:22,363 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2019-11-07 00:55:22,363 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376925809] [2019-11-07 00:55:22,364 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2019-11-07 00:55:22,364 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:55:22,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2019-11-07 00:55:22,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=373, Unknown=0, NotChecked=0, Total=420 [2019-11-07 00:55:22,365 INFO L87 Difference]: Start difference. First operand 837 states and 1113 transitions. Second operand 21 states. [2019-11-07 00:55:28,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:55:28,807 INFO L93 Difference]: Finished difference Result 2887 states and 3928 transitions. [2019-11-07 00:55:28,808 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2019-11-07 00:55:28,808 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 283 [2019-11-07 00:55:28,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:55:28,824 INFO L225 Difference]: With dead ends: 2887 [2019-11-07 00:55:28,824 INFO L226 Difference]: Without dead ends: 2478 [2019-11-07 00:55:28,829 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1067 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=505, Invalid=3785, Unknown=0, NotChecked=0, Total=4290 [2019-11-07 00:55:28,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2478 states. [2019-11-07 00:55:28,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2478 to 2441. [2019-11-07 00:55:28,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2441 states. [2019-11-07 00:55:28,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2441 states to 2441 states and 3317 transitions. [2019-11-07 00:55:28,955 INFO L78 Accepts]: Start accepts. Automaton has 2441 states and 3317 transitions. Word has length 283 [2019-11-07 00:55:28,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:55:28,955 INFO L462 AbstractCegarLoop]: Abstraction has 2441 states and 3317 transitions. [2019-11-07 00:55:28,956 INFO L463 AbstractCegarLoop]: Interpolant automaton has 21 states. [2019-11-07 00:55:28,956 INFO L276 IsEmpty]: Start isEmpty. Operand 2441 states and 3317 transitions. [2019-11-07 00:55:28,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2019-11-07 00:55:28,966 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:55:28,966 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:55:28,966 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:55:28,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:55:28,967 INFO L82 PathProgramCache]: Analyzing trace with hash 782051777, now seen corresponding path program 1 times [2019-11-07 00:55:28,967 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:55:28,967 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345846106] [2019-11-07 00:55:28,968 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:55:29,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:55:29,355 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2019-11-07 00:55:29,355 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345846106] [2019-11-07 00:55:29,356 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:55:29,356 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2019-11-07 00:55:29,356 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623651759] [2019-11-07 00:55:29,357 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-11-07 00:55:29,357 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:55:29,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-11-07 00:55:29,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2019-11-07 00:55:29,357 INFO L87 Difference]: Start difference. First operand 2441 states and 3317 transitions. Second operand 17 states. [2019-11-07 00:55:30,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:55:30,056 INFO L93 Difference]: Finished difference Result 4280 states and 5786 transitions. [2019-11-07 00:55:30,056 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-11-07 00:55:30,056 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 284 [2019-11-07 00:55:30,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:55:30,079 INFO L225 Difference]: With dead ends: 4280 [2019-11-07 00:55:30,079 INFO L226 Difference]: Without dead ends: 2555 [2019-11-07 00:55:30,086 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=101, Invalid=829, Unknown=0, NotChecked=0, Total=930 [2019-11-07 00:55:30,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2555 states. [2019-11-07 00:55:30,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2555 to 2555. [2019-11-07 00:55:30,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2555 states. [2019-11-07 00:55:30,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2555 states to 2555 states and 3475 transitions. [2019-11-07 00:55:30,216 INFO L78 Accepts]: Start accepts. Automaton has 2555 states and 3475 transitions. Word has length 284 [2019-11-07 00:55:30,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:55:30,217 INFO L462 AbstractCegarLoop]: Abstraction has 2555 states and 3475 transitions. [2019-11-07 00:55:30,217 INFO L463 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-11-07 00:55:30,217 INFO L276 IsEmpty]: Start isEmpty. Operand 2555 states and 3475 transitions. [2019-11-07 00:55:30,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2019-11-07 00:55:30,227 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:55:30,227 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:55:30,227 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:55:30,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:55:30,228 INFO L82 PathProgramCache]: Analyzing trace with hash 491512210, now seen corresponding path program 1 times [2019-11-07 00:55:30,228 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:55:30,228 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828065763] [2019-11-07 00:55:30,229 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:55:30,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:55:30,638 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2019-11-07 00:55:30,639 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828065763] [2019-11-07 00:55:30,639 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:55:30,639 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2019-11-07 00:55:30,640 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994783510] [2019-11-07 00:55:30,640 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-11-07 00:55:30,641 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:55:30,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-11-07 00:55:30,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=239, Unknown=0, NotChecked=0, Total=272 [2019-11-07 00:55:30,642 INFO L87 Difference]: Start difference. First operand 2555 states and 3475 transitions. Second operand 17 states. [2019-11-07 00:55:35,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:55:35,383 INFO L93 Difference]: Finished difference Result 4417 states and 6017 transitions. [2019-11-07 00:55:35,384 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2019-11-07 00:55:35,384 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 284 [2019-11-07 00:55:35,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:55:35,400 INFO L225 Difference]: With dead ends: 4417 [2019-11-07 00:55:35,400 INFO L226 Difference]: Without dead ends: 2687 [2019-11-07 00:55:35,407 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 727 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=273, Invalid=2697, Unknown=0, NotChecked=0, Total=2970 [2019-11-07 00:55:35,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2687 states. [2019-11-07 00:55:35,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2687 to 2650. [2019-11-07 00:55:35,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2650 states. [2019-11-07 00:55:35,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2650 states to 2650 states and 3625 transitions. [2019-11-07 00:55:35,556 INFO L78 Accepts]: Start accepts. Automaton has 2650 states and 3625 transitions. Word has length 284 [2019-11-07 00:55:35,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:55:35,557 INFO L462 AbstractCegarLoop]: Abstraction has 2650 states and 3625 transitions. [2019-11-07 00:55:35,557 INFO L463 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-11-07 00:55:35,557 INFO L276 IsEmpty]: Start isEmpty. Operand 2650 states and 3625 transitions. [2019-11-07 00:55:35,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2019-11-07 00:55:35,570 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:55:35,571 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:55:35,571 INFO L410 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:55:35,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:55:35,571 INFO L82 PathProgramCache]: Analyzing trace with hash 692516501, now seen corresponding path program 1 times [2019-11-07 00:55:35,572 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:55:35,572 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195717269] [2019-11-07 00:55:35,572 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:55:35,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:55:36,062 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2019-11-07 00:55:36,063 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195717269] [2019-11-07 00:55:36,063 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:55:36,063 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2019-11-07 00:55:36,063 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926167649] [2019-11-07 00:55:36,064 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2019-11-07 00:55:36,064 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:55:36,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2019-11-07 00:55:36,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=507, Unknown=0, NotChecked=0, Total=552 [2019-11-07 00:55:36,065 INFO L87 Difference]: Start difference. First operand 2650 states and 3625 transitions. Second operand 24 states. [2019-11-07 00:55:37,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:55:37,053 INFO L93 Difference]: Finished difference Result 4685 states and 6441 transitions. [2019-11-07 00:55:37,053 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2019-11-07 00:55:37,053 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 293 [2019-11-07 00:55:37,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:55:37,068 INFO L225 Difference]: With dead ends: 4685 [2019-11-07 00:55:37,069 INFO L226 Difference]: Without dead ends: 2829 [2019-11-07 00:55:37,075 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=85, Invalid=1037, Unknown=0, NotChecked=0, Total=1122 [2019-11-07 00:55:37,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2829 states. [2019-11-07 00:55:37,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2829 to 2827. [2019-11-07 00:55:37,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2827 states. [2019-11-07 00:55:37,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2827 states to 2827 states and 3877 transitions. [2019-11-07 00:55:37,221 INFO L78 Accepts]: Start accepts. Automaton has 2827 states and 3877 transitions. Word has length 293 [2019-11-07 00:55:37,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:55:37,222 INFO L462 AbstractCegarLoop]: Abstraction has 2827 states and 3877 transitions. [2019-11-07 00:55:37,222 INFO L463 AbstractCegarLoop]: Interpolant automaton has 24 states. [2019-11-07 00:55:37,222 INFO L276 IsEmpty]: Start isEmpty. Operand 2827 states and 3877 transitions. [2019-11-07 00:55:37,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2019-11-07 00:55:37,232 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:55:37,232 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:55:37,233 INFO L410 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:55:37,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:55:37,233 INFO L82 PathProgramCache]: Analyzing trace with hash 1427078172, now seen corresponding path program 1 times [2019-11-07 00:55:37,233 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:55:37,233 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918906012] [2019-11-07 00:55:37,234 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:55:37,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:55:37,636 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2019-11-07 00:55:37,637 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918906012] [2019-11-07 00:55:37,637 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:55:37,637 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-11-07 00:55:37,638 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449854868] [2019-11-07 00:55:37,639 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-11-07 00:55:37,639 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:55:37,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-11-07 00:55:37,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=307, Unknown=0, NotChecked=0, Total=342 [2019-11-07 00:55:37,640 INFO L87 Difference]: Start difference. First operand 2827 states and 3877 transitions. Second operand 19 states. [2019-11-07 00:55:38,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:55:38,598 INFO L93 Difference]: Finished difference Result 4760 states and 6470 transitions. [2019-11-07 00:55:38,599 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-11-07 00:55:38,599 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 293 [2019-11-07 00:55:38,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:55:38,619 INFO L225 Difference]: With dead ends: 4760 [2019-11-07 00:55:38,619 INFO L226 Difference]: Without dead ends: 2829 [2019-11-07 00:55:38,628 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=115, Invalid=1075, Unknown=0, NotChecked=0, Total=1190 [2019-11-07 00:55:38,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2829 states. [2019-11-07 00:55:38,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2829 to 2827. [2019-11-07 00:55:38,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2827 states. [2019-11-07 00:55:38,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2827 states to 2827 states and 3873 transitions. [2019-11-07 00:55:38,787 INFO L78 Accepts]: Start accepts. Automaton has 2827 states and 3873 transitions. Word has length 293 [2019-11-07 00:55:38,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:55:38,788 INFO L462 AbstractCegarLoop]: Abstraction has 2827 states and 3873 transitions. [2019-11-07 00:55:38,788 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-11-07 00:55:38,788 INFO L276 IsEmpty]: Start isEmpty. Operand 2827 states and 3873 transitions. [2019-11-07 00:55:38,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2019-11-07 00:55:38,795 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:55:38,796 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:55:38,796 INFO L410 AbstractCegarLoop]: === Iteration 16 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:55:38,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:55:38,796 INFO L82 PathProgramCache]: Analyzing trace with hash -416303227, now seen corresponding path program 1 times [2019-11-07 00:55:38,797 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:55:38,799 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921332375] [2019-11-07 00:55:38,799 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:55:38,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:55:39,081 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2019-11-07 00:55:39,081 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921332375] [2019-11-07 00:55:39,082 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:55:39,082 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-07 00:55:39,082 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775755114] [2019-11-07 00:55:39,083 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-07 00:55:39,083 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:55:39,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-07 00:55:39,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-07 00:55:39,084 INFO L87 Difference]: Start difference. First operand 2827 states and 3873 transitions. Second operand 5 states.