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_spec7_productSimulator.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:12:04,529 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:12:04,531 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:12:04,543 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:12:04,543 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:12:04,544 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:12:04,546 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:12:04,547 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:12:04,549 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:12:04,550 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:12:04,551 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:12:04,552 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:12:04,552 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:12:04,553 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:12:04,554 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:12:04,555 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:12:04,556 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:12:04,559 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:12:04,561 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:12:04,563 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:12:04,567 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:12:04,568 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:12:04,571 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:12:04,572 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:12:04,574 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:12:04,574 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:12:04,575 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:12:04,578 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:12:04,579 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:12:04,581 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:12:04,582 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:12:04,583 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:12:04,584 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:12:04,585 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:12:04,589 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:12:04,589 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:12:04,589 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:12:04,590 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:12:04,590 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:12:04,593 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:12:04,595 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:12:04,596 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 23:12:04,618 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:12:04,618 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:12:04,622 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:12:04,622 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:12:04,622 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:12:04,623 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:12:04,623 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:12:04,623 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:12:04,623 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:12:04,624 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:12:04,625 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:12:04,625 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:12:04,625 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:12:04,625 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:12:04,626 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:12:04,626 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:12:04,626 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:12:04,626 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:12:04,626 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:12:04,628 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:12:04,628 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:12:04,630 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:12:04,630 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:12:04,630 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:12:04,631 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:12:04,632 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:12:04,632 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:12:04,632 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:12:04,633 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 [2019-10-13 23:12:04,894 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:12:04,907 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:12:04,910 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:12:04,912 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:12:04,912 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:12:04,913 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec7_productSimulator.cil.c [2019-10-13 23:12:04,984 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c10478b30/61be82cfd6304c44bd824dc75edf05a8/FLAG9ccb3c632 [2019-10-13 23:12:05,601 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:12:05,603 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec7_productSimulator.cil.c [2019-10-13 23:12:05,624 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c10478b30/61be82cfd6304c44bd824dc75edf05a8/FLAG9ccb3c632 [2019-10-13 23:12:05,819 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c10478b30/61be82cfd6304c44bd824dc75edf05a8 [2019-10-13 23:12:05,829 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:12:05,830 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:12:05,831 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:12:05,831 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:12:05,835 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:12:05,836 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:12:05" (1/1) ... [2019-10-13 23:12:05,839 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 13.10 11:12:05, skipping insertion in model container [2019-10-13 23:12:05,839 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:12:05" (1/1) ... [2019-10-13 23:12:05,846 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:12:05,913 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:12:06,707 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:12:06,731 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:12:06,910 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:12:07,100 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:12:07,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:07 WrapperNode [2019-10-13 23:12:07,102 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:12:07,103 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:12:07,103 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:12:07,103 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:12:07,117 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:07" (1/1) ... [2019-10-13 23:12:07,118 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:07" (1/1) ... [2019-10-13 23:12:07,183 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:07" (1/1) ... [2019-10-13 23:12:07,184 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:07" (1/1) ... [2019-10-13 23:12:07,269 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:07" (1/1) ... [2019-10-13 23:12:07,292 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:07" (1/1) ... [2019-10-13 23:12:07,305 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:07" (1/1) ... [2019-10-13 23:12:07,324 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:12:07,325 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:12:07,325 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:12:07,326 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:12:07,327 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:07" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:12:07,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:12:07,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:12:07,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:12:07,412 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 23:12:07,412 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Encrypt [2019-10-13 23:12:07,413 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__role__Encrypt [2019-10-13 23:12:07,414 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__AddressBook [2019-10-13 23:12:07,414 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__role__AddressBook [2019-10-13 23:12:07,414 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Sign [2019-10-13 23:12:07,415 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__role__Sign [2019-10-13 23:12:07,415 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 23:12:07,416 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 23:12:07,416 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__AutoResponder [2019-10-13 23:12:07,416 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__role__AutoResponder [2019-10-13 23:12:07,416 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Forward [2019-10-13 23:12:07,417 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__role__Forward [2019-10-13 23:12:07,419 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Verify [2019-10-13 23:12:07,419 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__role__Verify [2019-10-13 23:12:07,420 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Decrypt [2019-10-13 23:12:07,420 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__role__Decrypt [2019-10-13 23:12:07,420 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 23:12:07,420 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 23:12:07,421 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 23:12:07,421 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 23:12:07,421 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 23:12:07,422 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 23:12:07,422 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 23:12:07,422 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 23:12:07,422 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 23:12:07,422 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-13 23:12:07,423 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-13 23:12:07,423 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-13 23:12:07,423 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-13 23:12:07,423 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-13 23:12:07,424 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 23:12:07,424 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 23:12:07,424 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 23:12:07,424 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 23:12:07,424 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 23:12:07,425 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 23:12:07,425 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 23:12:07,425 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 23:12:07,425 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 23:12:07,425 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 23:12:07,425 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 23:12:07,426 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 23:12:07,426 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 23:12:07,426 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 23:12:07,426 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 23:12:07,426 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 23:12:07,427 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 23:12:07,427 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 23:12:07,427 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 23:12:07,427 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 23:12:07,427 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 23:12:07,427 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__before__Keys [2019-10-13 23:12:07,428 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__role__Keys [2019-10-13 23:12:07,428 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 23:12:07,428 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__before__Keys [2019-10-13 23:12:07,429 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__role__Keys [2019-10-13 23:12:07,429 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 23:12:07,429 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__before__Keys [2019-10-13 23:12:07,429 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__role__Keys [2019-10-13 23:12:07,429 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 23:12:07,430 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 23:12:07,430 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 23:12:07,430 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:12:07,430 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:12:07,430 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 23:12:07,431 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 23:12:07,431 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 23:12:07,431 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 23:12:07,431 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 23:12:07,432 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 23:12:07,432 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 23:12:07,432 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 23:12:07,433 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 23:12:07,433 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-13 23:12:07,434 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-13 23:12:07,434 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-13 23:12:07,435 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptVerify_spec__1 [2019-10-13 23:12:07,435 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Encrypt [2019-10-13 23:12:07,455 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__role__Encrypt [2019-10-13 23:12:07,455 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Sign [2019-10-13 23:12:07,455 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__role__Sign [2019-10-13 23:12:07,455 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Verify [2019-10-13 23:12:07,456 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__role__Verify [2019-10-13 23:12:07,457 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 23:12:07,457 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__before__Encrypt [2019-10-13 23:12:07,457 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__role__Encrypt [2019-10-13 23:12:07,457 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 23:12:07,457 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 23:12:07,458 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 23:12:07,458 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 23:12:07,458 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 23:12:07,458 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 23:12:07,458 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 23:12:07,458 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 23:12:07,458 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 23:12:07,459 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 23:12:07,459 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 23:12:07,459 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 23:12:07,459 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 23:12:07,459 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 23:12:07,459 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 23:12:07,459 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 23:12:07,460 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 23:12:07,460 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 23:12:07,460 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 23:12:07,460 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 23:12:07,460 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 23:12:07,460 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 23:12:07,461 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 23:12:07,461 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 23:12:07,461 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 23:12:07,461 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 23:12:07,462 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 23:12:07,462 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 23:12:07,462 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 23:12:07,462 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 23:12:07,462 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 23:12:07,463 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 23:12:07,463 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:12:07,463 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:12:07,464 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:12:07,464 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:12:07,465 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:12:07,465 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 23:12:07,465 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:12:07,465 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:12:07,465 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:12:07,466 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:12:07,466 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:12:07,467 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:12:07,470 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:12:07,470 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:12:07,471 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:12:07,471 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:12:07,471 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 23:12:07,472 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 23:12:07,472 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 23:12:07,472 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 23:12:07,472 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 23:12:07,473 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 23:12:07,480 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 23:12:07,480 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 23:12:07,481 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 23:12:07,481 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 23:12:07,481 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 23:12:07,481 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 23:12:07,481 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 23:12:07,481 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 23:12:07,481 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 23:12:07,482 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 23:12:07,482 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 23:12:07,482 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 23:12:07,483 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 23:12:07,483 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 23:12:07,483 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 23:12:07,484 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 23:12:07,484 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 23:12:07,484 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 23:12:07,484 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 23:12:07,484 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 23:12:07,484 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 23:12:07,485 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 23:12:07,485 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 23:12:07,485 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 23:12:07,485 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 23:12:07,485 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 23:12:07,485 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 23:12:07,486 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 23:12:07,486 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 23:12:07,486 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 23:12:07,486 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 23:12:07,486 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 23:12:07,486 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-13 23:12:07,486 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-13 23:12:07,487 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-13 23:12:07,487 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-13 23:12:07,487 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-13 23:12:07,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:12:07,487 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Encrypt [2019-10-13 23:12:07,487 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__role__Encrypt [2019-10-13 23:12:07,488 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__AddressBook [2019-10-13 23:12:07,488 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__role__AddressBook [2019-10-13 23:12:07,488 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Sign [2019-10-13 23:12:07,488 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__role__Sign [2019-10-13 23:12:07,489 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__AutoResponder [2019-10-13 23:12:07,489 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__role__AutoResponder [2019-10-13 23:12:07,489 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Forward [2019-10-13 23:12:07,489 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__role__Forward [2019-10-13 23:12:07,489 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Verify [2019-10-13 23:12:07,489 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__role__Verify [2019-10-13 23:12:07,489 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Decrypt [2019-10-13 23:12:07,490 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__role__Decrypt [2019-10-13 23:12:07,490 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptVerify_spec__1 [2019-10-13 23:12:07,490 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 23:12:07,490 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 23:12:07,490 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 23:12:07,490 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 23:12:07,490 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 23:12:07,490 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 23:12:07,491 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 23:12:07,491 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 23:12:07,491 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 23:12:07,491 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 23:12:07,491 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 23:12:07,491 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 23:12:07,491 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 23:12:07,492 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 23:12:07,492 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 23:12:07,492 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 23:12:07,492 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 23:12:07,492 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 23:12:07,492 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 23:12:07,492 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:12:07,492 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:12:07,493 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:12:07,493 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 23:12:07,493 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 23:12:07,493 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 23:12:07,493 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 23:12:07,493 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 23:12:07,493 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:12:07,494 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:12:07,494 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:12:07,494 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 23:12:07,494 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 23:12:07,494 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 23:12:07,494 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 23:12:07,494 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 23:12:07,494 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 23:12:07,495 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 23:12:07,495 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 23:12:07,495 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 23:12:07,495 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-13 23:12:07,495 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-13 23:12:07,495 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-13 23:12:07,495 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__before__Keys [2019-10-13 23:12:07,496 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__role__Keys [2019-10-13 23:12:07,496 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__before__Keys [2019-10-13 23:12:07,496 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__role__Keys [2019-10-13 23:12:07,496 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__before__Keys [2019-10-13 23:12:07,496 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__role__Keys [2019-10-13 23:12:07,496 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:12:07,496 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 23:12:07,496 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Encrypt [2019-10-13 23:12:07,497 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__role__Encrypt [2019-10-13 23:12:07,497 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Sign [2019-10-13 23:12:07,497 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__role__Sign [2019-10-13 23:12:07,497 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Verify [2019-10-13 23:12:07,497 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__role__Verify [2019-10-13 23:12:07,497 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__before__Encrypt [2019-10-13 23:12:07,497 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__role__Encrypt [2019-10-13 23:12:07,498 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 23:12:07,498 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 23:12:07,498 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 23:12:07,498 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 23:12:07,498 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 23:12:07,499 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 23:12:07,503 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 23:12:07,503 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 23:12:07,503 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 23:12:07,503 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:12:07,503 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 23:12:07,503 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:12:07,503 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:12:07,504 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:12:07,504 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:12:07,504 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:12:07,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:12:07,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:12:07,507 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:12:07,507 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:12:07,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:12:07,507 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:12:07,508 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:12:07,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:12:07,508 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:12:07,508 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:12:07,508 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:12:07,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:12:07,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:12:07,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:12:11,927 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:12:11,927 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 23:12:11,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:12:11 BoogieIcfgContainer [2019-10-13 23:12:11,929 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:12:11,930 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:12:11,930 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:12:11,933 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:12:11,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:12:05" (1/3) ... [2019-10-13 23:12:11,934 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c6e7242 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:12:11, skipping insertion in model container [2019-10-13 23:12:11,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:07" (2/3) ... [2019-10-13 23:12:11,935 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c6e7242 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:12:11, skipping insertion in model container [2019-10-13 23:12:11,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:12:11" (3/3) ... [2019-10-13 23:12:11,936 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec7_productSimulator.cil.c [2019-10-13 23:12:11,946 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:12:11,955 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:12:11,965 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:12:11,994 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:12:11,994 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:12:11,994 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:12:11,994 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:12:11,994 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:12:11,995 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:12:11,995 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:12:11,995 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:12:12,024 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states. [2019-10-13 23:12:12,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2019-10-13 23:12:12,049 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:12:12,050 INFO L380 BasicCegarLoop]: trace histogram [8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:12:12,052 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:12:12,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:12:12,057 INFO L82 PathProgramCache]: Analyzing trace with hash -614740504, now seen corresponding path program 1 times [2019-10-13 23:12:12,067 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:12:12,067 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763846006] [2019-10-13 23:12:12,067 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:12,068 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:12,068 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:12:12,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:12,748 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2019-10-13 23:12:12,748 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763846006] [2019-10-13 23:12:12,749 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:12:12,749 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 23:12:12,750 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414523982] [2019-10-13 23:12:12,756 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 23:12:12,757 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:12:12,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 23:12:12,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 23:12:12,773 INFO L87 Difference]: Start difference. First operand 603 states. Second operand 6 states. [2019-10-13 23:12:13,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:12:13,016 INFO L93 Difference]: Finished difference Result 1128 states and 1420 transitions. [2019-10-13 23:12:13,016 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 23:12:13,018 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 159 [2019-10-13 23:12:13,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:12:13,049 INFO L225 Difference]: With dead ends: 1128 [2019-10-13 23:12:13,050 INFO L226 Difference]: Without dead ends: 576 [2019-10-13 23:12:13,062 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-13 23:12:13,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states. [2019-10-13 23:12:13,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 576. [2019-10-13 23:12:13,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 576 states. [2019-10-13 23:12:13,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 709 transitions. [2019-10-13 23:12:13,251 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 709 transitions. Word has length 159 [2019-10-13 23:12:13,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:12:13,253 INFO L462 AbstractCegarLoop]: Abstraction has 576 states and 709 transitions. [2019-10-13 23:12:13,253 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 23:12:13,253 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 709 transitions. [2019-10-13 23:12:13,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2019-10-13 23:12:13,260 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:12:13,260 INFO L380 BasicCegarLoop]: trace histogram [8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:12:13,261 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:12:13,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:12:13,262 INFO L82 PathProgramCache]: Analyzing trace with hash -1382018425, now seen corresponding path program 1 times [2019-10-13 23:12:13,262 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:12:13,262 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292072567] [2019-10-13 23:12:13,262 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:13,263 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:13,263 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:12:13,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:13,487 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2019-10-13 23:12:13,487 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292072567] [2019-10-13 23:12:13,488 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:12:13,488 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 23:12:13,488 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082780306] [2019-10-13 23:12:13,494 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 23:12:13,494 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:12:13,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 23:12:13,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 23:12:13,495 INFO L87 Difference]: Start difference. First operand 576 states and 709 transitions. Second operand 4 states. [2019-10-13 23:12:14,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:12:14,250 INFO L93 Difference]: Finished difference Result 1112 states and 1386 transitions. [2019-10-13 23:12:14,251 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 23:12:14,251 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 165 [2019-10-13 23:12:14,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:12:14,256 INFO L225 Difference]: With dead ends: 1112 [2019-10-13 23:12:14,257 INFO L226 Difference]: Without dead ends: 576 [2019-10-13 23:12:14,259 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 23:12:14,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states. [2019-10-13 23:12:14,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 576. [2019-10-13 23:12:14,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 576 states. [2019-10-13 23:12:14,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 703 transitions. [2019-10-13 23:12:14,305 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 703 transitions. Word has length 165 [2019-10-13 23:12:14,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:12:14,306 INFO L462 AbstractCegarLoop]: Abstraction has 576 states and 703 transitions. [2019-10-13 23:12:14,306 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 23:12:14,306 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 703 transitions. [2019-10-13 23:12:14,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2019-10-13 23:12:14,310 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:12:14,311 INFO L380 BasicCegarLoop]: trace histogram [8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:12:14,311 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:12:14,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:12:14,311 INFO L82 PathProgramCache]: Analyzing trace with hash 1625159900, now seen corresponding path program 1 times [2019-10-13 23:12:14,312 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:12:14,312 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707159959] [2019-10-13 23:12:14,312 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:14,312 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:14,312 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:12:14,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:14,551 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2019-10-13 23:12:14,551 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707159959] [2019-10-13 23:12:14,551 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:12:14,552 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:12:14,552 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174141038] [2019-10-13 23:12:14,553 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:12:14,553 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:12:14,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:12:14,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:12:14,554 INFO L87 Difference]: Start difference. First operand 576 states and 703 transitions. Second operand 3 states. [2019-10-13 23:12:14,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:12:14,661 INFO L93 Difference]: Finished difference Result 1620 states and 2022 transitions. [2019-10-13 23:12:14,662 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:12:14,662 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 166 [2019-10-13 23:12:14,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:12:14,675 INFO L225 Difference]: With dead ends: 1620 [2019-10-13 23:12:14,675 INFO L226 Difference]: Without dead ends: 1084 [2019-10-13 23:12:14,678 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:12:14,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1084 states. [2019-10-13 23:12:14,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1084 to 1081. [2019-10-13 23:12:14,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1081 states. [2019-10-13 23:12:14,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1081 states to 1081 states and 1336 transitions. [2019-10-13 23:12:14,799 INFO L78 Accepts]: Start accepts. Automaton has 1081 states and 1336 transitions. Word has length 166 [2019-10-13 23:12:14,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:12:14,801 INFO L462 AbstractCegarLoop]: Abstraction has 1081 states and 1336 transitions. [2019-10-13 23:12:14,801 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:12:14,801 INFO L276 IsEmpty]: Start isEmpty. Operand 1081 states and 1336 transitions. [2019-10-13 23:12:14,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2019-10-13 23:12:14,813 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:12:14,814 INFO L380 BasicCegarLoop]: trace histogram [8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:12:14,815 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:12:14,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:12:14,815 INFO L82 PathProgramCache]: Analyzing trace with hash 1276027460, now seen corresponding path program 1 times [2019-10-13 23:12:14,816 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:12:14,816 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287126549] [2019-10-13 23:12:14,816 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:14,816 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:14,817 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:12:14,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:15,067 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2019-10-13 23:12:15,068 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287126549] [2019-10-13 23:12:15,068 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:12:15,068 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:12:15,068 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319417042] [2019-10-13 23:12:15,069 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:12:15,069 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:12:15,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:12:15,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:12:15,070 INFO L87 Difference]: Start difference. First operand 1081 states and 1336 transitions. Second operand 3 states. [2019-10-13 23:12:15,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:12:15,197 INFO L93 Difference]: Finished difference Result 1084 states and 1338 transitions. [2019-10-13 23:12:15,198 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:12:15,198 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 167 [2019-10-13 23:12:15,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:12:15,202 INFO L225 Difference]: With dead ends: 1084 [2019-10-13 23:12:15,202 INFO L226 Difference]: Without dead ends: 576 [2019-10-13 23:12:15,204 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:12:15,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states. [2019-10-13 23:12:15,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 576. [2019-10-13 23:12:15,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 576 states. [2019-10-13 23:12:15,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 696 transitions. [2019-10-13 23:12:15,233 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 696 transitions. Word has length 167 [2019-10-13 23:12:15,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:12:15,234 INFO L462 AbstractCegarLoop]: Abstraction has 576 states and 696 transitions. [2019-10-13 23:12:15,234 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:12:15,234 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 696 transitions. [2019-10-13 23:12:15,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2019-10-13 23:12:15,237 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:12:15,237 INFO L380 BasicCegarLoop]: trace histogram [8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:12:15,237 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:12:15,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:12:15,238 INFO L82 PathProgramCache]: Analyzing trace with hash -1782331571, now seen corresponding path program 1 times [2019-10-13 23:12:15,238 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:12:15,239 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410491264] [2019-10-13 23:12:15,239 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:15,239 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:15,239 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:12:15,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:15,448 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2019-10-13 23:12:15,449 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410491264] [2019-10-13 23:12:15,450 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:12:15,450 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 23:12:15,450 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730452152] [2019-10-13 23:12:15,451 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 23:12:15,451 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:12:15,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 23:12:15,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 23:12:15,453 INFO L87 Difference]: Start difference. First operand 576 states and 696 transitions. Second operand 4 states. [2019-10-13 23:12:16,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:12:16,256 INFO L93 Difference]: Finished difference Result 1095 states and 1322 transitions. [2019-10-13 23:12:16,256 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 23:12:16,256 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 179 [2019-10-13 23:12:16,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:12:16,261 INFO L225 Difference]: With dead ends: 1095 [2019-10-13 23:12:16,261 INFO L226 Difference]: Without dead ends: 581 [2019-10-13 23:12:16,263 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 23:12:16,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2019-10-13 23:12:16,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 575. [2019-10-13 23:12:16,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 575 states. [2019-10-13 23:12:16,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 680 transitions. [2019-10-13 23:12:16,294 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 680 transitions. Word has length 179 [2019-10-13 23:12:16,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:12:16,295 INFO L462 AbstractCegarLoop]: Abstraction has 575 states and 680 transitions. [2019-10-13 23:12:16,295 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 23:12:16,295 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 680 transitions. [2019-10-13 23:12:16,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2019-10-13 23:12:16,298 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:12:16,298 INFO L380 BasicCegarLoop]: trace histogram [8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:12:16,298 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:12:16,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:12:16,299 INFO L82 PathProgramCache]: Analyzing trace with hash 22613257, now seen corresponding path program 1 times [2019-10-13 23:12:16,299 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:12:16,299 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305864523] [2019-10-13 23:12:16,300 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:16,300 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:16,300 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:12:16,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:16,513 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2019-10-13 23:12:16,514 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305864523] [2019-10-13 23:12:16,515 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:12:16,515 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:12:16,516 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335575666] [2019-10-13 23:12:16,516 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:12:16,517 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:12:16,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:12:16,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:12:16,518 INFO L87 Difference]: Start difference. First operand 575 states and 680 transitions. Second operand 3 states. [2019-10-13 23:12:16,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:12:16,569 INFO L93 Difference]: Finished difference Result 901 states and 1060 transitions. [2019-10-13 23:12:16,570 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:12:16,570 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 200 [2019-10-13 23:12:16,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:12:16,579 INFO L225 Difference]: With dead ends: 901 [2019-10-13 23:12:16,579 INFO L226 Difference]: Without dead ends: 577 [2019-10-13 23:12:16,581 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:12:16,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2019-10-13 23:12:16,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 577. [2019-10-13 23:12:16,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 577 states. [2019-10-13 23:12:16,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 682 transitions. [2019-10-13 23:12:16,618 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 682 transitions. Word has length 200 [2019-10-13 23:12:16,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:12:16,619 INFO L462 AbstractCegarLoop]: Abstraction has 577 states and 682 transitions. [2019-10-13 23:12:16,620 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:12:16,620 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 682 transitions. [2019-10-13 23:12:16,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2019-10-13 23:12:16,623 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:12:16,623 INFO L380 BasicCegarLoop]: trace histogram [8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:12:16,624 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:12:16,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:12:16,624 INFO L82 PathProgramCache]: Analyzing trace with hash -1533206705, now seen corresponding path program 1 times [2019-10-13 23:12:16,624 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:12:16,624 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584697679] [2019-10-13 23:12:16,625 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:16,625 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:16,625 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:12:16,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:16,911 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2019-10-13 23:12:16,912 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584697679] [2019-10-13 23:12:16,912 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:12:16,912 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:12:16,912 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775162763] [2019-10-13 23:12:16,913 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:12:16,913 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:12:16,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:12:16,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:12:16,914 INFO L87 Difference]: Start difference. First operand 577 states and 682 transitions. Second operand 3 states. [2019-10-13 23:12:16,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:12:16,957 INFO L93 Difference]: Finished difference Result 1098 states and 1331 transitions. [2019-10-13 23:12:16,957 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:12:16,957 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 207 [2019-10-13 23:12:16,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:12:16,962 INFO L225 Difference]: With dead ends: 1098 [2019-10-13 23:12:16,962 INFO L226 Difference]: Without dead ends: 631 [2019-10-13 23:12:16,964 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:12:16,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2019-10-13 23:12:16,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 630. [2019-10-13 23:12:16,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 630 states. [2019-10-13 23:12:16,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 630 states to 630 states and 769 transitions. [2019-10-13 23:12:16,995 INFO L78 Accepts]: Start accepts. Automaton has 630 states and 769 transitions. Word has length 207 [2019-10-13 23:12:16,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:12:16,996 INFO L462 AbstractCegarLoop]: Abstraction has 630 states and 769 transitions. [2019-10-13 23:12:16,996 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:12:16,996 INFO L276 IsEmpty]: Start isEmpty. Operand 630 states and 769 transitions. [2019-10-13 23:12:17,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2019-10-13 23:12:17,001 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:12:17,001 INFO L380 BasicCegarLoop]: trace histogram [8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:12:17,001 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:12:17,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:12:17,002 INFO L82 PathProgramCache]: Analyzing trace with hash -918438714, now seen corresponding path program 1 times [2019-10-13 23:12:17,002 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:12:17,002 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095348141] [2019-10-13 23:12:17,002 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:17,002 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:17,003 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:12:17,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:17,295 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2019-10-13 23:12:17,295 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095348141] [2019-10-13 23:12:17,296 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:12:17,296 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 23:12:17,296 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867746354] [2019-10-13 23:12:17,297 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 23:12:17,298 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:12:17,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 23:12:17,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2019-10-13 23:12:17,298 INFO L87 Difference]: Start difference. First operand 630 states and 769 transitions. Second operand 9 states. [2019-10-13 23:12:17,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:12:17,808 INFO L93 Difference]: Finished difference Result 637 states and 778 transitions. [2019-10-13 23:12:17,808 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 23:12:17,809 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 208 [2019-10-13 23:12:17,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:12:17,813 INFO L225 Difference]: With dead ends: 637 [2019-10-13 23:12:17,813 INFO L226 Difference]: Without dead ends: 634 [2019-10-13 23:12:17,814 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2019-10-13 23:12:17,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2019-10-13 23:12:17,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 634. [2019-10-13 23:12:17,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 634 states. [2019-10-13 23:12:17,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 775 transitions. [2019-10-13 23:12:17,854 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 775 transitions. Word has length 208 [2019-10-13 23:12:17,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:12:17,859 INFO L462 AbstractCegarLoop]: Abstraction has 634 states and 775 transitions. [2019-10-13 23:12:17,859 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 23:12:17,859 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 775 transitions. [2019-10-13 23:12:17,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2019-10-13 23:12:17,863 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:12:17,863 INFO L380 BasicCegarLoop]: trace histogram [8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:12:17,863 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:12:17,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:12:17,864 INFO L82 PathProgramCache]: Analyzing trace with hash 459656183, now seen corresponding path program 1 times [2019-10-13 23:12:17,864 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:12:17,864 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909155197] [2019-10-13 23:12:17,865 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:17,865 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:17,865 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:12:17,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:18,135 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2019-10-13 23:12:18,136 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909155197] [2019-10-13 23:12:18,136 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:12:18,136 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 23:12:18,136 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891506582] [2019-10-13 23:12:18,137 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 23:12:18,137 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:12:18,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 23:12:18,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 23:12:18,138 INFO L87 Difference]: Start difference. First operand 634 states and 775 transitions. Second operand 4 states. [2019-10-13 23:12:19,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:12:19,163 INFO L93 Difference]: Finished difference Result 1780 states and 2234 transitions. [2019-10-13 23:12:19,163 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 23:12:19,163 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 214 [2019-10-13 23:12:19,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:12:19,168 INFO L225 Difference]: With dead ends: 1780 [2019-10-13 23:12:19,168 INFO L226 Difference]: Without dead ends: 628 [2019-10-13 23:12:19,171 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 23:12:19,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 628 states. [2019-10-13 23:12:19,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 628 to 628. [2019-10-13 23:12:19,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 628 states. [2019-10-13 23:12:19,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 758 transitions. [2019-10-13 23:12:19,202 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 758 transitions. Word has length 214 [2019-10-13 23:12:19,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:12:19,203 INFO L462 AbstractCegarLoop]: Abstraction has 628 states and 758 transitions. [2019-10-13 23:12:19,203 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 23:12:19,203 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 758 transitions. [2019-10-13 23:12:19,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2019-10-13 23:12:19,207 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:12:19,207 INFO L380 BasicCegarLoop]: trace histogram [8, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:12:19,207 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:12:19,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:12:19,208 INFO L82 PathProgramCache]: Analyzing trace with hash -1554749411, now seen corresponding path program 1 times [2019-10-13 23:12:19,208 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:12:19,208 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180016435] [2019-10-13 23:12:19,208 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:19,208 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:19,209 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:12:19,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:19,349 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2019-10-13 23:12:19,350 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180016435] [2019-10-13 23:12:19,350 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:12:19,350 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:12:19,353 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917692157] [2019-10-13 23:12:19,354 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:12:19,355 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:12:19,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:12:19,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:12:19,355 INFO L87 Difference]: Start difference. First operand 628 states and 758 transitions. Second operand 3 states. [2019-10-13 23:12:19,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:12:19,484 INFO L93 Difference]: Finished difference Result 1213 states and 1481 transitions. [2019-10-13 23:12:19,485 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:12:19,485 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 227 [2019-10-13 23:12:19,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:12:19,489 INFO L225 Difference]: With dead ends: 1213 [2019-10-13 23:12:19,489 INFO L226 Difference]: Without dead ends: 627 [2019-10-13 23:12:19,492 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:12:19,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 627 states. [2019-10-13 23:12:19,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 627 to 627. [2019-10-13 23:12:19,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 627 states. [2019-10-13 23:12:19,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 627 states to 627 states and 754 transitions. [2019-10-13 23:12:19,546 INFO L78 Accepts]: Start accepts. Automaton has 627 states and 754 transitions. Word has length 227 [2019-10-13 23:12:19,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:12:19,546 INFO L462 AbstractCegarLoop]: Abstraction has 627 states and 754 transitions. [2019-10-13 23:12:19,547 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:12:19,547 INFO L276 IsEmpty]: Start isEmpty. Operand 627 states and 754 transitions. [2019-10-13 23:12:19,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2019-10-13 23:12:19,551 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:12:19,551 INFO L380 BasicCegarLoop]: trace histogram [8, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:12:19,551 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:12:19,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:12:19,552 INFO L82 PathProgramCache]: Analyzing trace with hash -1578381214, now seen corresponding path program 1 times [2019-10-13 23:12:19,552 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:12:19,552 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326593265] [2019-10-13 23:12:19,552 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:19,553 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:19,553 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:12:19,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:20,667 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2019-10-13 23:12:20,668 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326593265] [2019-10-13 23:12:20,668 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:12:20,668 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [40] imperfect sequences [] total 40 [2019-10-13 23:12:20,668 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803240090] [2019-10-13 23:12:20,669 INFO L442 AbstractCegarLoop]: Interpolant automaton has 40 states [2019-10-13 23:12:20,669 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:12:20,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2019-10-13 23:12:20,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=1455, Unknown=0, NotChecked=0, Total=1560 [2019-10-13 23:12:20,670 INFO L87 Difference]: Start difference. First operand 627 states and 754 transitions. Second operand 40 states. [2019-10-13 23:12:36,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:12:36,157 INFO L93 Difference]: Finished difference Result 1353 states and 1637 transitions. [2019-10-13 23:12:36,159 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2019-10-13 23:12:36,159 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 235 [2019-10-13 23:12:36,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:12:36,165 INFO L225 Difference]: With dead ends: 1353 [2019-10-13 23:12:36,166 INFO L226 Difference]: Without dead ends: 1040 [2019-10-13 23:12:36,168 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 619 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=244, Invalid=4046, Unknown=0, NotChecked=0, Total=4290 [2019-10-13 23:12:36,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1040 states. [2019-10-13 23:12:36,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1040 to 1025. [2019-10-13 23:12:36,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1025 states. [2019-10-13 23:12:36,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1237 transitions. [2019-10-13 23:12:36,221 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1237 transitions. Word has length 235 [2019-10-13 23:12:36,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:12:36,222 INFO L462 AbstractCegarLoop]: Abstraction has 1025 states and 1237 transitions. [2019-10-13 23:12:36,222 INFO L463 AbstractCegarLoop]: Interpolant automaton has 40 states. [2019-10-13 23:12:36,222 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1237 transitions. [2019-10-13 23:12:36,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2019-10-13 23:12:36,228 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:12:36,228 INFO L380 BasicCegarLoop]: trace histogram [8, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:12:36,228 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:12:36,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:12:36,229 INFO L82 PathProgramCache]: Analyzing trace with hash -405827079, now seen corresponding path program 1 times [2019-10-13 23:12:36,229 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:12:36,229 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697945712] [2019-10-13 23:12:36,229 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:36,230 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:36,230 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:12:36,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:37,377 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2019-10-13 23:12:37,377 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697945712] [2019-10-13 23:12:37,377 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:12:37,377 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [42] imperfect sequences [] total 42 [2019-10-13 23:12:37,378 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653332334] [2019-10-13 23:12:37,378 INFO L442 AbstractCegarLoop]: Interpolant automaton has 42 states [2019-10-13 23:12:37,379 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:12:37,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2019-10-13 23:12:37,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=1611, Unknown=0, NotChecked=0, Total=1722 [2019-10-13 23:12:37,380 INFO L87 Difference]: Start difference. First operand 1025 states and 1237 transitions. Second operand 42 states.