java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/email_spec8_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 15:10:01,058 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 15:10:01,061 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 15:10:01,081 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 15:10:01,081 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 15:10:01,082 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 15:10:01,084 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 15:10:01,095 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 15:10:01,100 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 15:10:01,103 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 15:10:01,104 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 15:10:01,105 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 15:10:01,106 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 15:10:01,107 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 15:10:01,108 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 15:10:01,109 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 15:10:01,109 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 15:10:01,110 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 15:10:01,112 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 15:10:01,113 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 15:10:01,115 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 15:10:01,116 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 15:10:01,117 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 15:10:01,118 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 15:10:01,120 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 15:10:01,120 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 15:10:01,120 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 15:10:01,121 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 15:10:01,121 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 15:10:01,122 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 15:10:01,123 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 15:10:01,123 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 15:10:01,124 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 15:10:01,125 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 15:10:01,126 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 15:10:01,126 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 15:10:01,127 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 15:10:01,127 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 15:10:01,127 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 15:10:01,128 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 15:10:01,129 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 15:10:01,130 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-07 15:10:01,163 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 15:10:01,163 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 15:10:01,165 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 15:10:01,166 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 15:10:01,166 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 15:10:01,166 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 15:10:01,166 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 15:10:01,166 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 15:10:01,167 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 15:10:01,167 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 15:10:01,167 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 15:10:01,167 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 15:10:01,167 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 15:10:01,168 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 15:10:01,168 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 15:10:01,168 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 15:10:01,168 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 15:10:01,169 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 15:10:01,169 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 15:10:01,169 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 15:10:01,169 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 15:10:01,169 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 15:10:01,170 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 15:10:01,170 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 15:10:01,170 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 15:10:01,170 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 15:10:01,170 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 15:10:01,171 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 15:10:01,171 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-07 15:10:01,475 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 15:10:01,488 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 15:10:01,491 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 15:10:01,493 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 15:10:01,494 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 15:10:01,494 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec8_product35.cil.c [2019-10-07 15:10:01,561 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/462fd1747/4658b429bd014cc79cd0bb4334aecce8/FLAG4bb2ebba0 [2019-10-07 15:10:02,221 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 15:10:02,222 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec8_product35.cil.c [2019-10-07 15:10:02,259 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/462fd1747/4658b429bd014cc79cd0bb4334aecce8/FLAG4bb2ebba0 [2019-10-07 15:10:02,438 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/462fd1747/4658b429bd014cc79cd0bb4334aecce8 [2019-10-07 15:10:02,447 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 15:10:02,449 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 15:10:02,450 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 15:10:02,450 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 15:10:02,454 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 15:10:02,455 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:10:02" (1/1) ... [2019-10-07 15:10:02,458 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5163d5ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:10:02, skipping insertion in model container [2019-10-07 15:10:02,458 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:10:02" (1/1) ... [2019-10-07 15:10:02,467 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 15:10:02,540 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 15:10:03,382 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:10:03,413 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 15:10:03,577 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:10:03,694 INFO L192 MainTranslator]: Completed translation [2019-10-07 15:10:03,695 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:10:03 WrapperNode [2019-10-07 15:10:03,695 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 15:10:03,696 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 15:10:03,696 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 15:10:03,697 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 15:10:03,712 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:10:03" (1/1) ... [2019-10-07 15:10:03,713 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:10:03" (1/1) ... [2019-10-07 15:10:03,749 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:10:03" (1/1) ... [2019-10-07 15:10:03,749 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:10:03" (1/1) ... [2019-10-07 15:10:03,810 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:10:03" (1/1) ... [2019-10-07 15:10:03,840 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:10:03" (1/1) ... [2019-10-07 15:10:03,860 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:10:03" (1/1) ... [2019-10-07 15:10:03,879 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 15:10:03,880 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 15:10:03,880 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 15:10:03,880 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 15:10:03,882 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:10:03" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 15:10:03,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 15:10:03,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 15:10:03,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 15:10:03,976 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-07 15:10:03,976 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-07 15:10:03,977 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-07 15:10:03,978 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-07 15:10:03,978 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-07 15:10:03,978 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-07 15:10:03,978 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-07 15:10:03,978 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-07 15:10:03,979 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-07 15:10:03,980 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-07 15:10:03,980 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-07 15:10:03,980 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-07 15:10:03,980 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-07 15:10:03,982 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-07 15:10:03,983 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-07 15:10:03,983 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-07 15:10:03,983 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-07 15:10:03,983 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-07 15:10:03,984 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-07 15:10:03,984 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-07 15:10:03,984 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-07 15:10:03,984 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-07 15:10:03,984 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-07 15:10:03,984 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-07 15:10:03,985 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptAutoResponder_spec__1 [2019-10-07 15:10:03,985 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptAutoResponder_spec__2 [2019-10-07 15:10:03,986 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-07 15:10:03,986 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-07 15:10:03,986 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-07 15:10:03,987 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-07 15:10:03,987 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-07 15:10:03,987 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-07 15:10:03,987 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-07 15:10:03,987 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-07 15:10:03,988 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 15:10:03,988 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 15:10:03,988 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-07 15:10:03,988 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-07 15:10:03,988 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-07 15:10:03,988 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-07 15:10:03,988 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-07 15:10:03,989 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-07 15:10:03,989 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-07 15:10:03,989 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-07 15:10:03,989 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-07 15:10:03,989 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-07 15:10:03,989 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-07 15:10:03,989 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-07 15:10:03,989 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 15:10:03,990 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 15:10:03,990 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 15:10:03,990 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 15:10:03,990 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 15:10:03,990 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-07 15:10:03,991 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-07 15:10:03,991 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-07 15:10:03,991 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-07 15:10:03,992 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-07 15:10:03,992 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-07 15:10:03,992 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-07 15:10:03,992 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-07 15:10:03,992 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-07 15:10:03,992 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-07 15:10:03,993 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-07 15:10:03,993 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-07 15:10:03,993 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-07 15:10:03,993 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-07 15:10:03,993 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-07 15:10:03,993 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-07 15:10:03,993 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-07 15:10:03,994 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-07 15:10:03,995 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-07 15:10:03,995 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-07 15:10:03,995 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-07 15:10:03,996 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 15:10:03,996 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 15:10:03,996 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 15:10:03,997 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 15:10:03,997 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 15:10:03,997 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 15:10:03,997 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-07 15:10:03,997 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-07 15:10:03,998 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-07 15:10:03,998 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-07 15:10:03,999 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-07 15:10:03,999 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-07 15:10:03,999 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-07 15:10:03,999 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-07 15:10:03,999 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-07 15:10:03,999 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-07 15:10:03,999 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-07 15:10:04,000 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-07 15:10:04,000 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-07 15:10:04,000 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-07 15:10:04,000 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-07 15:10:04,000 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-07 15:10:04,000 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-07 15:10:04,000 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-07 15:10:04,001 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-07 15:10:04,001 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-07 15:10:04,001 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-07 15:10:04,001 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-07 15:10:04,001 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-07 15:10:04,001 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-07 15:10:04,002 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-07 15:10:04,002 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-07 15:10:04,002 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-07 15:10:04,002 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-07 15:10:04,002 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-07 15:10:04,002 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 15:10:04,003 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-07 15:10:04,003 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-07 15:10:04,003 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-07 15:10:04,004 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-07 15:10:04,004 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-07 15:10:04,004 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-07 15:10:04,004 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-07 15:10:04,005 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-07 15:10:04,005 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-07 15:10:04,005 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 15:10:04,005 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 15:10:04,007 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 15:10:04,007 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-07 15:10:04,007 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-07 15:10:04,007 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-07 15:10:04,007 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-07 15:10:04,008 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-07 15:10:04,008 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-07 15:10:04,008 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-07 15:10:04,009 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-07 15:10:04,010 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-07 15:10:04,013 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-07 15:10:04,013 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-07 15:10:04,013 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-07 15:10:04,013 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-07 15:10:04,014 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-07 15:10:04,014 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-07 15:10:04,014 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-07 15:10:04,014 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-07 15:10:04,015 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-07 15:10:04,015 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-07 15:10:04,023 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-07 15:10:04,023 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-07 15:10:04,024 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-07 15:10:04,024 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-07 15:10:04,024 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-07 15:10:04,025 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-07 15:10:04,025 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-07 15:10:04,025 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-07 15:10:04,026 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-07 15:10:04,026 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-07 15:10:04,026 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-07 15:10:04,026 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-07 15:10:04,026 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-07 15:10:04,026 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-07 15:10:04,027 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-07 15:10:04,027 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-07 15:10:04,027 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-07 15:10:04,027 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-07 15:10:04,027 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-07 15:10:04,028 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-07 15:10:04,028 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-07 15:10:04,028 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-07 15:10:04,028 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-07 15:10:04,028 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-07 15:10:04,028 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptAutoResponder_spec__2 [2019-10-07 15:10:04,029 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 15:10:04,029 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-07 15:10:04,029 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-07 15:10:04,029 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-07 15:10:04,029 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-07 15:10:04,030 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-07 15:10:04,030 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-07 15:10:04,030 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-07 15:10:04,030 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptAutoResponder_spec__1 [2019-10-07 15:10:04,030 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 15:10:04,030 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-07 15:10:04,031 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-07 15:10:04,031 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-07 15:10:04,031 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-07 15:10:04,031 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-07 15:10:04,031 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-07 15:10:04,032 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-07 15:10:04,032 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-07 15:10:04,032 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-07 15:10:04,033 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-07 15:10:04,033 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-07 15:10:04,033 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 15:10:04,033 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 15:10:04,033 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 15:10:04,033 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-07 15:10:04,034 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-07 15:10:04,034 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-07 15:10:04,034 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-07 15:10:04,034 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-07 15:10:04,034 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 15:10:04,035 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 15:10:04,035 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 15:10:04,035 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-07 15:10:04,035 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-07 15:10:04,035 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-07 15:10:04,035 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-07 15:10:04,036 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-07 15:10:04,036 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-07 15:10:04,036 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-07 15:10:04,036 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-07 15:10:04,036 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-07 15:10:04,036 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-07 15:10:04,037 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-07 15:10:04,037 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-07 15:10:04,037 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-07 15:10:04,037 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-07 15:10:04,037 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-07 15:10:04,038 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 15:10:04,038 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-07 15:10:04,038 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-07 15:10:04,038 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-07 15:10:04,038 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-07 15:10:04,038 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-07 15:10:04,039 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-07 15:10:04,039 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-07 15:10:04,039 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-07 15:10:04,039 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 15:10:04,039 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 15:10:04,039 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 15:10:04,040 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 15:10:04,040 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 15:10:04,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 15:10:04,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 15:10:04,040 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 15:10:04,041 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 15:10:04,041 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 15:10:04,041 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 15:10:04,041 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 15:10:04,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 15:10:04,041 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 15:10:04,042 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 15:10:04,042 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 15:10:04,042 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-07 15:10:04,042 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-07 15:10:04,042 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-07 15:10:04,043 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-07 15:10:04,043 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-07 15:10:04,043 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-07 15:10:04,043 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-07 15:10:04,043 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-07 15:10:04,043 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-07 15:10:04,044 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-07 15:10:04,044 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-07 15:10:04,044 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-07 15:10:04,044 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-07 15:10:04,044 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-07 15:10:04,045 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-07 15:10:04,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 15:10:04,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 15:10:04,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 15:10:09,191 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 15:10:09,193 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-07 15:10:09,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:10:09 BoogieIcfgContainer [2019-10-07 15:10:09,197 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 15:10:09,198 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 15:10:09,198 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 15:10:09,204 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 15:10:09,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 03:10:02" (1/3) ... [2019-10-07 15:10:09,205 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65fb27cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:10:09, skipping insertion in model container [2019-10-07 15:10:09,206 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:10:03" (2/3) ... [2019-10-07 15:10:09,206 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65fb27cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:10:09, skipping insertion in model container [2019-10-07 15:10:09,206 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:10:09" (3/3) ... [2019-10-07 15:10:09,209 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec8_product35.cil.c [2019-10-07 15:10:09,223 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 15:10:09,234 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 15:10:09,246 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 15:10:09,286 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 15:10:09,286 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 15:10:09,287 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 15:10:09,287 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 15:10:09,287 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 15:10:09,287 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 15:10:09,287 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 15:10:09,287 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 15:10:09,316 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states. [2019-10-07 15:10:09,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2019-10-07 15:10:09,334 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:10:09,335 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-07 15:10:09,338 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:10:09,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:10:09,344 INFO L82 PathProgramCache]: Analyzing trace with hash 670570149, now seen corresponding path program 1 times [2019-10-07 15:10:09,354 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:10:09,354 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:09,355 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:09,355 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:09,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:10:09,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:10:10,002 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 15:10:10,002 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:10,003 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:10:10,003 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 15:10:10,007 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 15:10:10,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 15:10:10,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 15:10:10,024 INFO L87 Difference]: Start difference. First operand 482 states. Second operand 2 states. [2019-10-07 15:10:10,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:10:10,132 INFO L93 Difference]: Finished difference Result 739 states and 881 transitions. [2019-10-07 15:10:10,132 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 15:10:10,133 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 132 [2019-10-07 15:10:10,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:10:10,154 INFO L225 Difference]: With dead ends: 739 [2019-10-07 15:10:10,155 INFO L226 Difference]: Without dead ends: 455 [2019-10-07 15:10:10,162 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 15:10:10,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2019-10-07 15:10:10,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 455. [2019-10-07 15:10:10,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 455 states. [2019-10-07 15:10:10,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 538 transitions. [2019-10-07 15:10:10,262 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 538 transitions. Word has length 132 [2019-10-07 15:10:10,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:10:10,265 INFO L462 AbstractCegarLoop]: Abstraction has 455 states and 538 transitions. [2019-10-07 15:10:10,265 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 15:10:10,265 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 538 transitions. [2019-10-07 15:10:10,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2019-10-07 15:10:10,277 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:10:10,278 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-07 15:10:10,278 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:10:10,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:10:10,279 INFO L82 PathProgramCache]: Analyzing trace with hash 1391113483, now seen corresponding path program 1 times [2019-10-07 15:10:10,279 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:10:10,279 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:10,279 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:10,279 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:10,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:10:10,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:10:10,627 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 15:10:10,628 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:10,628 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:10:10,628 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:10:10,630 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:10:10,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:10:10,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:10:10,631 INFO L87 Difference]: Start difference. First operand 455 states and 538 transitions. Second operand 3 states. [2019-10-07 15:10:10,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:10:10,701 INFO L93 Difference]: Finished difference Result 724 states and 849 transitions. [2019-10-07 15:10:10,703 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:10:10,703 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 133 [2019-10-07 15:10:10,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:10:10,718 INFO L225 Difference]: With dead ends: 724 [2019-10-07 15:10:10,719 INFO L226 Difference]: Without dead ends: 457 [2019-10-07 15:10:10,726 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:10:10,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2019-10-07 15:10:10,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 457. [2019-10-07 15:10:10,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 457 states. [2019-10-07 15:10:10,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 540 transitions. [2019-10-07 15:10:10,786 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 540 transitions. Word has length 133 [2019-10-07 15:10:10,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:10:10,787 INFO L462 AbstractCegarLoop]: Abstraction has 457 states and 540 transitions. [2019-10-07 15:10:10,788 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:10:10,788 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 540 transitions. [2019-10-07 15:10:10,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2019-10-07 15:10:10,791 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:10:10,791 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:10:10,792 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:10:10,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:10:10,796 INFO L82 PathProgramCache]: Analyzing trace with hash -1810896350, now seen corresponding path program 1 times [2019-10-07 15:10:10,797 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:10:10,797 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:10,797 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:10,797 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:10,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:10:10,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:10:11,104 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 15:10:11,105 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:11,105 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:10:11,105 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:10:11,107 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:10:11,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:10:11,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:10:11,108 INFO L87 Difference]: Start difference. First operand 457 states and 540 transitions. Second operand 3 states. [2019-10-07 15:10:11,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:10:11,171 INFO L93 Difference]: Finished difference Result 900 states and 1093 transitions. [2019-10-07 15:10:11,172 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:10:11,172 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 145 [2019-10-07 15:10:11,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:10:11,179 INFO L225 Difference]: With dead ends: 900 [2019-10-07 15:10:11,179 INFO L226 Difference]: Without dead ends: 501 [2019-10-07 15:10:11,182 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:10:11,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2019-10-07 15:10:11,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 500. [2019-10-07 15:10:11,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 500 states. [2019-10-07 15:10:11,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 614 transitions. [2019-10-07 15:10:11,271 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 614 transitions. Word has length 145 [2019-10-07 15:10:11,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:10:11,272 INFO L462 AbstractCegarLoop]: Abstraction has 500 states and 614 transitions. [2019-10-07 15:10:11,273 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:10:11,273 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 614 transitions. [2019-10-07 15:10:11,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2019-10-07 15:10:11,282 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:10:11,289 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:10:11,289 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:10:11,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:10:11,290 INFO L82 PathProgramCache]: Analyzing trace with hash 1725128397, now seen corresponding path program 1 times [2019-10-07 15:10:11,292 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:10:11,292 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:11,292 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:11,292 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:11,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:10:11,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:10:11,673 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 15:10:11,673 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:11,674 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:10:11,674 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:10:11,675 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:10:11,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:10:11,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:10:11,676 INFO L87 Difference]: Start difference. First operand 500 states and 614 transitions. Second operand 3 states. [2019-10-07 15:10:11,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:10:11,725 INFO L93 Difference]: Finished difference Result 836 states and 1009 transitions. [2019-10-07 15:10:11,726 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:10:11,726 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 146 [2019-10-07 15:10:11,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:10:11,732 INFO L225 Difference]: With dead ends: 836 [2019-10-07 15:10:11,733 INFO L226 Difference]: Without dead ends: 581 [2019-10-07 15:10:11,735 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:10:11,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2019-10-07 15:10:11,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 580. [2019-10-07 15:10:11,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 580 states. [2019-10-07 15:10:11,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 705 transitions. [2019-10-07 15:10:11,776 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 705 transitions. Word has length 146 [2019-10-07 15:10:11,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:10:11,777 INFO L462 AbstractCegarLoop]: Abstraction has 580 states and 705 transitions. [2019-10-07 15:10:11,777 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:10:11,777 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 705 transitions. [2019-10-07 15:10:11,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2019-10-07 15:10:11,786 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:10:11,787 INFO L385 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:10:11,787 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:10:11,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:10:11,788 INFO L82 PathProgramCache]: Analyzing trace with hash 945482337, now seen corresponding path program 1 times [2019-10-07 15:10:11,789 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:10:11,789 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:11,789 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:11,790 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:11,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:10:11,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:10:12,338 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-07 15:10:12,338 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:12,338 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:10:12,339 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2019-10-07 15:10:12,339 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-07 15:10:12,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-07 15:10:12,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2019-10-07 15:10:12,340 INFO L87 Difference]: Start difference. First operand 580 states and 705 transitions. Second operand 14 states. [2019-10-07 15:10:17,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:10:17,278 INFO L93 Difference]: Finished difference Result 1393 states and 1682 transitions. [2019-10-07 15:10:17,278 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-07 15:10:17,279 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 266 [2019-10-07 15:10:17,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:10:17,290 INFO L225 Difference]: With dead ends: 1393 [2019-10-07 15:10:17,291 INFO L226 Difference]: Without dead ends: 1080 [2019-10-07 15:10:17,295 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=119, Invalid=531, Unknown=0, NotChecked=0, Total=650 [2019-10-07 15:10:17,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1080 states. [2019-10-07 15:10:17,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1080 to 1071. [2019-10-07 15:10:17,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1071 states. [2019-10-07 15:10:17,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1071 states to 1071 states and 1310 transitions. [2019-10-07 15:10:17,391 INFO L78 Accepts]: Start accepts. Automaton has 1071 states and 1310 transitions. Word has length 266 [2019-10-07 15:10:17,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:10:17,394 INFO L462 AbstractCegarLoop]: Abstraction has 1071 states and 1310 transitions. [2019-10-07 15:10:17,394 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-07 15:10:17,394 INFO L276 IsEmpty]: Start isEmpty. Operand 1071 states and 1310 transitions. [2019-10-07 15:10:17,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2019-10-07 15:10:17,401 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:10:17,401 INFO L385 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:10:17,402 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:10:17,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:10:17,402 INFO L82 PathProgramCache]: Analyzing trace with hash 862060710, now seen corresponding path program 1 times [2019-10-07 15:10:17,402 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:10:17,403 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:17,403 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:17,403 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:17,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:10:17,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:10:17,755 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-07 15:10:17,755 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:17,756 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:10:17,756 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:10:17,757 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:10:17,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:10:17,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:10:17,757 INFO L87 Difference]: Start difference. First operand 1071 states and 1310 transitions. Second operand 3 states. [2019-10-07 15:10:17,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:10:17,841 INFO L93 Difference]: Finished difference Result 2248 states and 2841 transitions. [2019-10-07 15:10:17,841 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:10:17,841 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 281 [2019-10-07 15:10:17,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:10:17,851 INFO L225 Difference]: With dead ends: 2248 [2019-10-07 15:10:17,851 INFO L226 Difference]: Without dead ends: 1235 [2019-10-07 15:10:17,855 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:10:17,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1235 states. [2019-10-07 15:10:17,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1235 to 1233. [2019-10-07 15:10:17,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1233 states. [2019-10-07 15:10:17,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1233 states to 1233 states and 1588 transitions. [2019-10-07 15:10:17,952 INFO L78 Accepts]: Start accepts. Automaton has 1233 states and 1588 transitions. Word has length 281 [2019-10-07 15:10:17,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:10:17,955 INFO L462 AbstractCegarLoop]: Abstraction has 1233 states and 1588 transitions. [2019-10-07 15:10:17,955 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:10:17,955 INFO L276 IsEmpty]: Start isEmpty. Operand 1233 states and 1588 transitions. [2019-10-07 15:10:17,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2019-10-07 15:10:17,968 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:10:17,968 INFO L385 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:10:17,969 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:10:17,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:10:17,969 INFO L82 PathProgramCache]: Analyzing trace with hash 312490161, now seen corresponding path program 1 times [2019-10-07 15:10:17,970 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:10:17,970 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:17,975 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:17,976 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:17,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:10:18,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:10:18,256 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-07 15:10:18,256 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:18,256 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:10:18,257 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:10:18,258 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:10:18,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:10:18,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:10:18,260 INFO L87 Difference]: Start difference. First operand 1233 states and 1588 transitions. Second operand 3 states. [2019-10-07 15:10:18,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:10:18,353 INFO L93 Difference]: Finished difference Result 2722 states and 3655 transitions. [2019-10-07 15:10:18,353 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:10:18,354 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 282 [2019-10-07 15:10:18,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:10:18,365 INFO L225 Difference]: With dead ends: 2722 [2019-10-07 15:10:18,365 INFO L226 Difference]: Without dead ends: 1547 [2019-10-07 15:10:18,371 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:10:18,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1547 states. [2019-10-07 15:10:18,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1547 to 1545. [2019-10-07 15:10:18,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1545 states. [2019-10-07 15:10:18,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1545 states to 1545 states and 2120 transitions. [2019-10-07 15:10:18,584 INFO L78 Accepts]: Start accepts. Automaton has 1545 states and 2120 transitions. Word has length 282 [2019-10-07 15:10:18,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:10:18,584 INFO L462 AbstractCegarLoop]: Abstraction has 1545 states and 2120 transitions. [2019-10-07 15:10:18,584 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:10:18,585 INFO L276 IsEmpty]: Start isEmpty. Operand 1545 states and 2120 transitions. [2019-10-07 15:10:18,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2019-10-07 15:10:18,595 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:10:18,596 INFO L385 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:10:18,596 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:10:18,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:10:18,597 INFO L82 PathProgramCache]: Analyzing trace with hash 527919014, now seen corresponding path program 1 times [2019-10-07 15:10:18,597 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:10:18,597 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:18,597 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:18,597 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:18,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:10:18,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:10:18,847 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-07 15:10:18,848 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:18,848 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:10:18,848 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:10:18,850 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:10:18,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:10:18,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:10:18,851 INFO L87 Difference]: Start difference. First operand 1545 states and 2120 transitions. Second operand 3 states. [2019-10-07 15:10:18,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:10:18,961 INFO L93 Difference]: Finished difference Result 3634 states and 5211 transitions. [2019-10-07 15:10:18,961 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:10:18,961 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 283 [2019-10-07 15:10:18,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:10:18,975 INFO L225 Difference]: With dead ends: 3634 [2019-10-07 15:10:18,975 INFO L226 Difference]: Without dead ends: 2147 [2019-10-07 15:10:18,981 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:10:18,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2147 states. [2019-10-07 15:10:19,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2147 to 2145. [2019-10-07 15:10:19,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2145 states. [2019-10-07 15:10:19,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2145 states to 2145 states and 3136 transitions. [2019-10-07 15:10:19,125 INFO L78 Accepts]: Start accepts. Automaton has 2145 states and 3136 transitions. Word has length 283 [2019-10-07 15:10:19,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:10:19,125 INFO L462 AbstractCegarLoop]: Abstraction has 2145 states and 3136 transitions. [2019-10-07 15:10:19,125 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:10:19,125 INFO L276 IsEmpty]: Start isEmpty. Operand 2145 states and 3136 transitions. [2019-10-07 15:10:19,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2019-10-07 15:10:19,139 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:10:19,139 INFO L385 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:10:19,140 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:10:19,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:10:19,140 INFO L82 PathProgramCache]: Analyzing trace with hash 419724721, now seen corresponding path program 1 times [2019-10-07 15:10:19,140 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:10:19,141 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:19,141 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:19,141 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:19,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:10:19,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:10:19,519 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-07 15:10:19,519 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:19,519 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:10:19,519 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:10:19,520 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:10:19,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:10:19,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:10:19,522 INFO L87 Difference]: Start difference. First operand 2145 states and 3136 transitions. Second operand 3 states. [2019-10-07 15:10:19,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:10:19,685 INFO L93 Difference]: Finished difference Result 5386 states and 8179 transitions. [2019-10-07 15:10:19,686 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:10:19,686 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 284 [2019-10-07 15:10:19,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:10:19,709 INFO L225 Difference]: With dead ends: 5386 [2019-10-07 15:10:19,709 INFO L226 Difference]: Without dead ends: 3299 [2019-10-07 15:10:19,719 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:10:19,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3299 states. [2019-10-07 15:10:19,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3299 to 3297. [2019-10-07 15:10:19,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3297 states. [2019-10-07 15:10:19,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3297 states to 3297 states and 5072 transitions. [2019-10-07 15:10:19,943 INFO L78 Accepts]: Start accepts. Automaton has 3297 states and 5072 transitions. Word has length 284 [2019-10-07 15:10:19,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:10:19,944 INFO L462 AbstractCegarLoop]: Abstraction has 3297 states and 5072 transitions. [2019-10-07 15:10:19,944 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:10:19,945 INFO L276 IsEmpty]: Start isEmpty. Operand 3297 states and 5072 transitions. [2019-10-07 15:10:19,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2019-10-07 15:10:19,966 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:10:19,966 INFO L385 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:10:19,966 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:10:19,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:10:19,967 INFO L82 PathProgramCache]: Analyzing trace with hash 587560614, now seen corresponding path program 1 times [2019-10-07 15:10:19,967 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:10:19,967 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:19,967 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:19,968 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:19,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:10:20,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:10:20,191 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-07 15:10:20,191 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:20,191 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:10:20,192 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:10:20,192 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:10:20,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:10:20,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:10:20,193 INFO L87 Difference]: Start difference. First operand 3297 states and 5072 transitions. Second operand 3 states. [2019-10-07 15:10:20,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:10:20,498 INFO L93 Difference]: Finished difference Result 8746 states and 13827 transitions. [2019-10-07 15:10:20,499 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:10:20,499 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 285 [2019-10-07 15:10:20,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:10:20,536 INFO L225 Difference]: With dead ends: 8746 [2019-10-07 15:10:20,536 INFO L226 Difference]: Without dead ends: 5507 [2019-10-07 15:10:20,549 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:10:20,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5507 states. [2019-10-07 15:10:20,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5507 to 5505. [2019-10-07 15:10:20,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5505 states. [2019-10-07 15:10:20,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5505 states to 5505 states and 8752 transitions. [2019-10-07 15:10:20,922 INFO L78 Accepts]: Start accepts. Automaton has 5505 states and 8752 transitions. Word has length 285 [2019-10-07 15:10:20,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:10:20,922 INFO L462 AbstractCegarLoop]: Abstraction has 5505 states and 8752 transitions. [2019-10-07 15:10:20,922 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:10:20,922 INFO L276 IsEmpty]: Start isEmpty. Operand 5505 states and 8752 transitions. [2019-10-07 15:10:20,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2019-10-07 15:10:20,968 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:10:20,969 INFO L385 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:10:20,969 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:10:20,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:10:20,970 INFO L82 PathProgramCache]: Analyzing trace with hash -607642959, now seen corresponding path program 1 times [2019-10-07 15:10:20,970 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:10:20,971 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:20,971 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:20,971 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:20,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:10:21,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:10:21,211 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-07 15:10:21,211 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:21,211 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:10:21,212 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:10:21,212 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:10:21,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:10:21,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:10:21,213 INFO L87 Difference]: Start difference. First operand 5505 states and 8752 transitions. Second operand 3 states. [2019-10-07 15:10:21,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:10:21,730 INFO L93 Difference]: Finished difference Result 15178 states and 24547 transitions. [2019-10-07 15:10:21,730 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:10:21,730 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 286 [2019-10-07 15:10:21,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:10:21,801 INFO L225 Difference]: With dead ends: 15178 [2019-10-07 15:10:21,802 INFO L226 Difference]: Without dead ends: 9731 [2019-10-07 15:10:21,824 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:10:21,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9731 states. [2019-10-07 15:10:22,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9731 to 9729. [2019-10-07 15:10:22,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9729 states. [2019-10-07 15:10:22,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9729 states to 9729 states and 15728 transitions. [2019-10-07 15:10:22,304 INFO L78 Accepts]: Start accepts. Automaton has 9729 states and 15728 transitions. Word has length 286 [2019-10-07 15:10:22,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:10:22,304 INFO L462 AbstractCegarLoop]: Abstraction has 9729 states and 15728 transitions. [2019-10-07 15:10:22,304 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:10:22,304 INFO L276 IsEmpty]: Start isEmpty. Operand 9729 states and 15728 transitions. [2019-10-07 15:10:22,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2019-10-07 15:10:22,372 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:10:22,373 INFO L385 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:10:22,373 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:10:22,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:10:22,374 INFO L82 PathProgramCache]: Analyzing trace with hash -319017562, now seen corresponding path program 1 times [2019-10-07 15:10:22,374 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:10:22,374 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:22,374 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:22,375 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:10:22,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:10:22,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:10:23,101 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-07 15:10:23,101 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:10:23,101 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 15:10:23,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:10:23,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:10:23,932 INFO L256 TraceCheckSpWp]: Trace formula consists of 3947 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 15:10:23,957 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 15:10:24,161 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2019-10-07 15:10:24,162 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 15:10:24,664 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-07 15:10:24,664 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 15:10:24,699 INFO L162 IcfgInterpreter]: Started Sifa with 234 locations of interest [2019-10-07 15:10:24,699 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 15:10:24,709 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 15:10:24,716 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 15:10:24,716 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 15:12:34,372 WARN L191 SmtUtils]: Spent 459.00 ms on a formula simplification that was a NOOP. DAG size: 745 [2019-10-07 15:12:40,742 WARN L191 SmtUtils]: Spent 1.78 s on a formula simplification. DAG size of input: 368 DAG size of output: 299 [2019-10-07 15:12:41,128 WARN L191 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 795 [2019-10-07 15:12:41,379 WARN L191 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 795 [2019-10-07 15:12:41,601 WARN L191 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 795 [2019-10-07 15:12:41,763 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 465 [2019-10-07 15:12:42,460 WARN L191 SmtUtils]: Spent 695.00 ms on a formula simplification that was a NOOP. DAG size: 1103 [2019-10-07 15:12:43,186 WARN L191 SmtUtils]: Spent 705.00 ms on a formula simplification that was a NOOP. DAG size: 1103 [2019-10-07 15:12:43,910 WARN L191 SmtUtils]: Spent 719.00 ms on a formula simplification that was a NOOP. DAG size: 1103 [2019-10-07 15:12:44,062 WARN L191 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 465 [2019-10-07 15:12:44,756 WARN L191 SmtUtils]: Spent 692.00 ms on a formula simplification that was a NOOP. DAG size: 1103 [2019-10-07 15:12:46,162 WARN L191 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 1105 DAG size of output: 1103 [2019-10-07 15:12:46,872 WARN L191 SmtUtils]: Spent 706.00 ms on a formula simplification that was a NOOP. DAG size: 1103 [2019-10-07 15:12:47,019 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 465 [2019-10-07 15:12:47,726 WARN L191 SmtUtils]: Spent 704.00 ms on a formula simplification that was a NOOP. DAG size: 1103 [2019-10-07 15:12:48,420 WARN L191 SmtUtils]: Spent 692.00 ms on a formula simplification that was a NOOP. DAG size: 1103 [2019-10-07 15:12:49,115 WARN L191 SmtUtils]: Spent 691.00 ms on a formula simplification that was a NOOP. DAG size: 1103 [2019-10-07 15:12:49,241 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 465 [2019-10-07 15:12:49,915 WARN L191 SmtUtils]: Spent 672.00 ms on a formula simplification that was a NOOP. DAG size: 1103 [2019-10-07 15:12:49,942 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 592 for LOIs [2019-10-07 15:12:50,343 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 706 [2019-10-07 15:12:50,465 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 706 [2019-10-07 15:12:50,595 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 465 [2019-10-07 15:12:51,103 WARN L191 SmtUtils]: Spent 506.00 ms on a formula simplification that was a NOOP. DAG size: 1014 [2019-10-07 15:12:51,104 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1167 for LOIs [2019-10-07 15:12:51,784 WARN L191 SmtUtils]: Spent 678.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:12:52,452 WARN L191 SmtUtils]: Spent 663.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:12:52,809 WARN L191 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 672 [2019-10-07 15:12:53,910 WARN L191 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 1379 [2019-10-07 15:12:54,605 WARN L191 SmtUtils]: Spent 682.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:12:55,275 WARN L191 SmtUtils]: Spent 665.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:12:55,558 WARN L191 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 672 [2019-10-07 15:12:56,669 WARN L191 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 1379 [2019-10-07 15:12:57,363 WARN L191 SmtUtils]: Spent 662.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:12:58,039 WARN L191 SmtUtils]: Spent 672.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:12:58,332 WARN L191 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 672 [2019-10-07 15:12:59,448 WARN L191 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 1379 [2019-10-07 15:13:00,517 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 1381 DAG size of output: 1167 [2019-10-07 15:13:01,210 WARN L191 SmtUtils]: Spent 689.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:13:01,509 WARN L191 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 672 [2019-10-07 15:13:02,632 WARN L191 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 1379 [2019-10-07 15:13:03,320 WARN L191 SmtUtils]: Spent 671.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:13:03,988 WARN L191 SmtUtils]: Spent 664.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:13:04,308 WARN L191 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 672 [2019-10-07 15:13:05,417 WARN L191 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 1379 [2019-10-07 15:13:06,099 WARN L191 SmtUtils]: Spent 678.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:13:06,784 WARN L191 SmtUtils]: Spent 682.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:13:07,054 WARN L191 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 672 [2019-10-07 15:13:08,183 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 1379 [2019-10-07 15:13:08,857 WARN L191 SmtUtils]: Spent 671.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:13:09,527 WARN L191 SmtUtils]: Spent 667.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:13:09,794 WARN L191 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 672 [2019-10-07 15:13:10,937 WARN L191 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 1379 [2019-10-07 15:13:11,608 WARN L191 SmtUtils]: Spent 667.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:13:12,290 WARN L191 SmtUtils]: Spent 678.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:13:12,557 WARN L191 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 672 [2019-10-07 15:13:13,690 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 1379 [2019-10-07 15:13:14,370 WARN L191 SmtUtils]: Spent 676.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:13:15,056 WARN L191 SmtUtils]: Spent 682.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:13:15,324 WARN L191 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 672 [2019-10-07 15:13:16,473 WARN L191 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 1379 [2019-10-07 15:13:17,154 WARN L191 SmtUtils]: Spent 678.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:13:17,831 WARN L191 SmtUtils]: Spent 673.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:13:18,099 WARN L191 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 672 [2019-10-07 15:13:19,239 WARN L191 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 1379 [2019-10-07 15:13:19,913 WARN L191 SmtUtils]: Spent 671.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:13:20,589 WARN L191 SmtUtils]: Spent 672.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:13:20,858 WARN L191 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 672 [2019-10-07 15:13:22,011 WARN L191 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 1379 [2019-10-07 15:13:22,698 WARN L191 SmtUtils]: Spent 684.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:13:23,379 WARN L191 SmtUtils]: Spent 678.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:13:23,645 WARN L191 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 672 [2019-10-07 15:13:24,767 WARN L191 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 1379 [2019-10-07 15:13:25,441 WARN L191 SmtUtils]: Spent 670.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:13:26,126 WARN L191 SmtUtils]: Spent 682.00 ms on a formula simplification that was a NOOP. DAG size: 1167 [2019-10-07 15:13:26,395 WARN L191 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 672 [2019-10-07 15:13:27,508 WARN L191 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 1379 [2019-10-07 15:13:28,692 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 1379 [2019-10-07 15:13:29,827 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 1379 [2019-10-07 15:13:30,103 WARN L191 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 672 [2019-10-07 15:13:31,222 WARN L191 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 1379 [2019-10-07 15:13:33,305 WARN L191 SmtUtils]: Spent 2.07 s on a formula simplification. DAG size of input: 1381 DAG size of output: 1379 [2019-10-07 15:13:34,422 WARN L191 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 1379 [2019-10-07 15:13:34,702 WARN L191 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 672 [2019-10-07 15:13:35,823 WARN L191 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 1379 [2019-10-07 15:13:36,947 WARN L191 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 1379 [2019-10-07 15:13:38,074 WARN L191 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 1379 [2019-10-07 15:13:38,343 WARN L191 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 672 [2019-10-07 15:13:39,467 WARN L191 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 1379 [2019-10-07 15:13:40,652 WARN L191 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 1383 [2019-10-07 15:13:41,797 WARN L191 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 1383 [2019-10-07 15:13:42,073 WARN L191 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 675 [2019-10-07 15:13:43,205 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 1383 [2019-10-07 15:13:44,506 WARN L191 SmtUtils]: Spent 1.28 s on a formula simplification that was a NOOP. DAG size: 1383 [2019-10-07 15:13:45,660 WARN L191 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 1383 [2019-10-07 15:13:45,947 WARN L191 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 675 [2019-10-07 15:13:47,108 WARN L191 SmtUtils]: Spent 1.16 s on a formula simplification that was a NOOP. DAG size: 1383 [2019-10-07 15:13:48,241 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 1383 [2019-10-07 15:13:49,386 WARN L191 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 1383 [2019-10-07 15:13:49,657 WARN L191 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 675 [2019-10-07 15:13:50,788 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 1383 [2019-10-07 15:13:51,937 WARN L191 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 1381 [2019-10-07 15:13:53,062 WARN L191 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 1381 [2019-10-07 15:13:53,333 WARN L191 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 675 [2019-10-07 15:13:54,457 WARN L191 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 1383 [2019-10-07 15:13:55,571 WARN L191 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 1383 [2019-10-07 15:13:56,683 WARN L191 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 1383 [2019-10-07 15:13:56,976 WARN L191 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 675 [2019-10-07 15:13:58,102 WARN L191 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 1385 [2019-10-07 15:14:00,374 WARN L191 SmtUtils]: Spent 2.22 s on a formula simplification. DAG size of input: 1381 DAG size of output: 1379 [2019-10-07 15:14:01,491 WARN L191 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 1379 [2019-10-07 15:14:01,772 WARN L191 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 672 [2019-10-07 15:14:02,891 WARN L191 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 1379 [2019-10-07 15:14:04,940 WARN L191 SmtUtils]: Spent 2.03 s on a formula simplification. DAG size of input: 1381 DAG size of output: 1379 [2019-10-07 15:14:06,059 WARN L191 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 1379 [2019-10-07 15:14:06,358 WARN L191 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 672 [2019-10-07 15:14:07,488 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 1379 [2019-10-07 15:14:08,613 WARN L191 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 1379 [2019-10-07 15:14:09,734 WARN L191 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 1379 [2019-10-07 15:14:09,999 WARN L191 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 672 [2019-10-07 15:14:11,108 WARN L191 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 1379 [2019-10-07 15:14:13,178 WARN L191 SmtUtils]: Spent 2.03 s on a formula simplification. DAG size of input: 1381 DAG size of output: 1379 [2019-10-07 15:14:14,292 WARN L191 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 1379 [2019-10-07 15:14:14,572 WARN L191 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 672 [2019-10-07 15:14:15,680 WARN L191 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 1379 [2019-10-07 15:14:17,737 WARN L191 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 1381 DAG size of output: 1379 [2019-10-07 15:14:18,854 WARN L191 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 1379 [2019-10-07 15:14:19,129 WARN L191 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 672 [2019-10-07 15:14:20,245 WARN L191 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 1379 [2019-10-07 15:14:21,367 WARN L191 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 1379 [2019-10-07 15:14:22,499 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 1379 [2019-10-07 15:14:22,764 WARN L191 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 672 [2019-10-07 15:14:23,892 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 1379 [2019-10-07 15:14:25,951 WARN L191 SmtUtils]: Spent 2.03 s on a formula simplification. DAG size of input: 1385 DAG size of output: 1381 [2019-10-07 15:14:27,094 WARN L191 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 1381 [2019-10-07 15:14:27,369 WARN L191 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 675 [2019-10-07 15:14:28,519 WARN L191 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 1383 [2019-10-07 15:14:29,653 WARN L191 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 1383 [2019-10-07 15:14:30,793 WARN L191 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 1383 [2019-10-07 15:14:31,069 WARN L191 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 675 [2019-10-07 15:14:32,192 WARN L191 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 1383 [2019-10-07 15:14:34,244 WARN L191 SmtUtils]: Spent 2.05 s on a formula simplification. DAG size of input: 1385 DAG size of output: 1381 [2019-10-07 15:14:35,373 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 1381 [2019-10-07 15:14:35,638 WARN L191 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 675 [2019-10-07 15:14:36,765 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 1383 [2019-10-07 15:14:38,713 WARN L191 SmtUtils]: Spent 1.94 s on a formula simplification. DAG size of input: 1390 DAG size of output: 1383 [2019-10-07 15:14:39,835 WARN L191 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 1383 [2019-10-07 15:14:40,140 WARN L191 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 675 [2019-10-07 15:14:41,267 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 1383 [2019-10-07 15:14:43,220 WARN L191 SmtUtils]: Spent 1.95 s on a formula simplification. DAG size of input: 1392 DAG size of output: 1385 [2019-10-07 15:14:44,365 WARN L191 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 1385 [2019-10-07 15:14:44,645 WARN L191 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 675 [2019-10-07 15:14:45,774 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 1385 [2019-10-07 15:14:46,069 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:14:46,070 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:133) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.lib.sifa.PriorityWorklist.add(PriorityWorklist.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.lambda$2(DagInterpreter.java:135) at java.lang.Iterable.forEach(Iterable.java:75) at java.util.Collections$UnmodifiableCollection.forEach(Collections.java:1080) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:135) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:139) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:287) ... 21 more [2019-10-07 15:14:46,089 INFO L168 Benchmark]: Toolchain (without parser) took 283633.68 ms. Allocated memory was 137.4 MB in the beginning and 2.1 GB in the end (delta: 2.0 GB). Free memory was 98.8 MB in the beginning and 553.4 MB in the end (delta: -454.6 MB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. [2019-10-07 15:14:46,090 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 137.4 MB. Free memory was 120.6 MB in the beginning and 120.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-07 15:14:46,091 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1245.75 ms. Allocated memory was 137.4 MB in the beginning and 203.9 MB in the end (delta: 66.6 MB). Free memory was 98.6 MB in the beginning and 130.2 MB in the end (delta: -31.6 MB). Peak memory consumption was 40.2 MB. Max. memory is 7.1 GB. [2019-10-07 15:14:46,094 INFO L168 Benchmark]: Boogie Preprocessor took 183.24 ms. Allocated memory is still 203.9 MB. Free memory was 130.2 MB in the beginning and 120.2 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2019-10-07 15:14:46,095 INFO L168 Benchmark]: RCFGBuilder took 5317.12 ms. Allocated memory was 203.9 MB in the beginning and 303.0 MB in the end (delta: 99.1 MB). Free memory was 120.2 MB in the beginning and 254.8 MB in the end (delta: -134.6 MB). Peak memory consumption was 144.5 MB. Max. memory is 7.1 GB. [2019-10-07 15:14:46,095 INFO L168 Benchmark]: TraceAbstraction took 276882.64 ms. Allocated memory was 303.0 MB in the beginning and 2.1 GB in the end (delta: 1.8 GB). Free memory was 254.8 MB in the beginning and 553.4 MB in the end (delta: -298.6 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. [2019-10-07 15:14:46,099 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 137.4 MB. Free memory was 120.6 MB in the beginning and 120.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1245.75 ms. Allocated memory was 137.4 MB in the beginning and 203.9 MB in the end (delta: 66.6 MB). Free memory was 98.6 MB in the beginning and 130.2 MB in the end (delta: -31.6 MB). Peak memory consumption was 40.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 183.24 ms. Allocated memory is still 203.9 MB. Free memory was 130.2 MB in the beginning and 120.2 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5317.12 ms. Allocated memory was 203.9 MB in the beginning and 303.0 MB in the end (delta: 99.1 MB). Free memory was 120.2 MB in the beginning and 254.8 MB in the end (delta: -134.6 MB). Peak memory consumption was 144.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 276882.64 ms. Allocated memory was 303.0 MB in the beginning and 2.1 GB in the end (delta: 1.8 GB). Free memory was 254.8 MB in the beginning and 553.4 MB in the end (delta: -298.6 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...