java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/product-lines/email_spec11_product26.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 21:13:33,618 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:13:33,621 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:13:33,640 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:13:33,640 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:13:33,642 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:13:33,644 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:13:33,657 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:13:33,660 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:13:33,662 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:13:33,664 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:13:33,666 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:13:33,667 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:13:33,671 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:13:33,674 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:13:33,675 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:13:33,676 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:13:33,677 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:13:33,679 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:13:33,682 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:13:33,684 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:13:33,688 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:13:33,691 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:13:33,692 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:13:33,697 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 21:13:33,697 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 21:13:33,697 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 21:13:33,700 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 21:13:33,701 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 21:13:33,704 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 21:13:33,704 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 21:13:33,705 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 21:13:33,706 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 21:13:33,707 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 21:13:33,711 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 21:13:33,711 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 21:13:33,712 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 21:13:33,712 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 21:13:33,713 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:13:33,714 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:13:33,716 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:13:33,717 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 21:13:33,731 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:13:33,732 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:13:33,733 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:13:33,733 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:13:33,733 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:13:33,734 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:13:33,734 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:13:33,734 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:13:33,734 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:13:33,734 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:13:33,735 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:13:33,735 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:13:33,735 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:13:33,735 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:13:33,735 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:13:33,736 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:13:33,736 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:13:33,736 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:13:33,736 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:13:33,736 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:13:33,737 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:13:33,737 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:13:33,737 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:13:33,737 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:13:33,737 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:13:33,738 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:13:33,738 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:13:33,738 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:13:33,738 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-13 21:13:34,030 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:13:34,043 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:13:34,046 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:13:34,048 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:13:34,049 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:13:34,049 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec11_product26.cil.c [2019-10-13 21:13:34,120 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97bd745ec/5b81de56d10b426ea72459cf9a861ba7/FLAG3fb005b2d [2019-10-13 21:13:34,744 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:13:34,744 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec11_product26.cil.c [2019-10-13 21:13:34,779 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97bd745ec/5b81de56d10b426ea72459cf9a861ba7/FLAG3fb005b2d [2019-10-13 21:13:34,985 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97bd745ec/5b81de56d10b426ea72459cf9a861ba7 [2019-10-13 21:13:34,995 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:13:34,997 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:13:34,998 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:13:34,998 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:13:35,002 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:13:35,003 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:13:34" (1/1) ... [2019-10-13 21:13:35,006 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@528d6d3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:13:35, skipping insertion in model container [2019-10-13 21:13:35,007 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:13:34" (1/1) ... [2019-10-13 21:13:35,014 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:13:35,086 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:13:35,901 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:13:35,920 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:13:36,078 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:13:36,179 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:13:36,180 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:13:36 WrapperNode [2019-10-13 21:13:36,180 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:13:36,181 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:13:36,182 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:13:36,182 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:13:36,194 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:13:36" (1/1) ... [2019-10-13 21:13:36,195 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:13:36" (1/1) ... [2019-10-13 21:13:36,226 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:13:36" (1/1) ... [2019-10-13 21:13:36,226 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:13:36" (1/1) ... [2019-10-13 21:13:36,286 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:13:36" (1/1) ... [2019-10-13 21:13:36,311 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:13:36" (1/1) ... [2019-10-13 21:13:36,324 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:13:36" (1/1) ... [2019-10-13 21:13:36,342 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:13:36,342 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:13:36,343 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:13:36,343 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:13:36,344 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:13:36" (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 21:13:36,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:13:36,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:13:36,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 21:13:36,416 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 21:13:36,416 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 21:13:36,416 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 21:13:36,417 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 21:13:36,417 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 21:13:36,417 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 21:13:36,417 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 21:13:36,418 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 21:13:36,418 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 21:13:36,418 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 21:13:36,418 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 21:13:36,418 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 21:13:36,419 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 21:13:36,419 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 21:13:36,419 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 21:13:36,419 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 21:13:36,420 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 21:13:36,420 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 21:13:36,420 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 21:13:36,421 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 21:13:36,421 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 21:13:36,421 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 21:13:36,421 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 21:13:36,421 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 21:13:36,422 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 21:13:36,422 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 21:13:36,422 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 21:13:36,422 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 21:13:36,422 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 21:13:36,423 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 21:13:36,423 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 21:13:36,423 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptAutoResponder_spec__1 [2019-10-13 21:13:36,423 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 21:13:36,423 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 21:13:36,423 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 21:13:36,424 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 21:13:36,424 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 21:13:36,424 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 21:13:36,424 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 21:13:36,424 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 21:13:36,425 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 21:13:36,425 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:13:36,425 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 21:13:36,425 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 21:13:36,425 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 21:13:36,425 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 21:13:36,426 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 21:13:36,426 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 21:13:36,426 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 21:13:36,426 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 21:13:36,426 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 21:13:36,427 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-13 21:13:36,427 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-13 21:13:36,427 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-13 21:13:36,427 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 21:13:36,427 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 21:13:36,427 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 21:13:36,428 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 21:13:36,428 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 21:13:36,428 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 21:13:36,428 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 21:13:36,429 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 21:13:36,429 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 21:13:36,429 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 21:13:36,429 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 21:13:36,429 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 21:13:36,429 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 21:13:36,430 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 21:13:36,430 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 21:13:36,430 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 21:13:36,430 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 21:13:36,430 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 21:13:36,431 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 21:13:36,431 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 21:13:36,431 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 21:13:36,431 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 21:13:36,431 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 21:13:36,431 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 21:13:36,432 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 21:13:36,432 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 21:13:36,432 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 21:13:36,432 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 21:13:36,432 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 21:13:36,432 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 21:13:36,433 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 21:13:36,433 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 21:13:36,433 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 21:13:36,433 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 21:13:36,433 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 21:13:36,433 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 21:13:36,433 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 21:13:36,434 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 21:13:36,434 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-13 21:13:36,434 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 21:13:36,434 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 21:13:36,434 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-13 21:13:36,434 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AddressBook [2019-10-13 21:13:36,435 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-13 21:13:36,435 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 21:13:36,435 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 21:13:36,435 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 21:13:36,435 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 21:13:36,435 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 21:13:36,435 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 21:13:36,436 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 21:13:36,436 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 21:13:36,436 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 21:13:36,436 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-13 21:13:36,436 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-13 21:13:36,436 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-13 21:13:36,436 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 21:13:36,437 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 21:13:36,437 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:13:36,437 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 21:13:36,437 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 21:13:36,437 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 21:13:36,437 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 21:13:36,438 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 21:13:36,438 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 21:13:36,438 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 21:13:36,438 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 21:13:36,438 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 21:13:36,438 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 21:13:36,439 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 21:13:36,439 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 21:13:36,439 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 21:13:36,439 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 21:13:36,439 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 21:13:36,439 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 21:13:36,440 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 21:13:36,440 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 21:13:36,440 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 21:13:36,440 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 21:13:36,440 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 21:13:36,440 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 21:13:36,441 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 21:13:36,441 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 21:13:36,441 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 21:13:36,441 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 21:13:36,441 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 21:13:36,441 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 21:13:36,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 21:13:36,442 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 21:13:36,442 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 21:13:36,442 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 21:13:36,442 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 21:13:36,442 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 21:13:36,442 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 21:13:36,443 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 21:13:36,443 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptAutoResponder_spec__1 [2019-10-13 21:13:36,443 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 21:13:36,443 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 21:13:36,443 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 21:13:36,443 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 21:13:36,444 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 21:13:36,444 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 21:13:36,444 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 21:13:36,444 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 21:13:36,444 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 21:13:36,444 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 21:13:36,444 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 21:13:36,445 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 21:13:36,445 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 21:13:36,445 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 21:13:36,445 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 21:13:36,445 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 21:13:36,445 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 21:13:36,445 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 21:13:36,446 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 21:13:36,446 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 21:13:36,446 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 21:13:36,446 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 21:13:36,446 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 21:13:36,446 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 21:13:36,446 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 21:13:36,447 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:13:36,447 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 21:13:36,447 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 21:13:36,447 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 21:13:36,447 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 21:13:36,447 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 21:13:36,447 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 21:13:36,447 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 21:13:36,448 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 21:13:36,448 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 21:13:36,448 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-13 21:13:36,448 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-13 21:13:36,448 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-13 21:13:36,448 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 21:13:36,448 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 21:13:36,449 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 21:13:36,449 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 21:13:36,449 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 21:13:36,449 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 21:13:36,449 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 21:13:36,449 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 21:13:36,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 21:13:36,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 21:13:36,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 21:13:36,450 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 21:13:36,450 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 21:13:36,450 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 21:13:36,450 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 21:13:36,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 21:13:36,450 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 21:13:36,451 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 21:13:36,451 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 21:13:36,451 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 21:13:36,451 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 21:13:36,451 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 21:13:36,451 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 21:13:36,452 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 21:13:36,452 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 21:13:36,452 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 21:13:36,452 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 21:13:36,452 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 21:13:36,452 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 21:13:36,452 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 21:13:36,453 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 21:13:36,453 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 21:13:36,453 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 21:13:36,453 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 21:13:36,453 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 21:13:36,453 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 21:13:36,453 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 21:13:36,454 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 21:13:36,454 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 21:13:36,454 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 21:13:36,454 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 21:13:36,454 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 21:13:36,454 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-13 21:13:36,454 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-13 21:13:36,455 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-13 21:13:36,455 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 21:13:36,455 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-13 21:13:36,455 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-13 21:13:36,455 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AddressBook [2019-10-13 21:13:36,455 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-13 21:13:36,455 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 21:13:36,456 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:13:36,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 21:13:36,456 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:13:38,509 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:13:38,510 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 21:13:38,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:13:38 BoogieIcfgContainer [2019-10-13 21:13:38,512 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:13:38,513 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:13:38,513 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:13:38,517 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:13:38,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:13:34" (1/3) ... [2019-10-13 21:13:38,518 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4da1222 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:13:38, skipping insertion in model container [2019-10-13 21:13:38,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:13:36" (2/3) ... [2019-10-13 21:13:38,518 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4da1222 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:13:38, skipping insertion in model container [2019-10-13 21:13:38,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:13:38" (3/3) ... [2019-10-13 21:13:38,520 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec11_product26.cil.c [2019-10-13 21:13:38,530 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:13:38,540 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:13:38,551 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:13:38,591 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:13:38,591 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:13:38,591 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:13:38,592 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:13:38,595 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:13:38,595 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:13:38,596 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:13:38,596 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:13:38,636 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states. [2019-10-13 21:13:38,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2019-10-13 21:13:38,672 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:38,674 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:13:38,682 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:38,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:38,689 INFO L82 PathProgramCache]: Analyzing trace with hash 900111105, now seen corresponding path program 1 times [2019-10-13 21:13:38,699 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:38,700 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60799274] [2019-10-13 21:13:38,700 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:38,700 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:38,701 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:39,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:39,368 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-13 21:13:39,369 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60799274] [2019-10-13 21:13:39,370 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:39,370 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 21:13:39,371 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654477808] [2019-10-13 21:13:39,377 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 21:13:39,378 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:39,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 21:13:39,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:13:39,396 INFO L87 Difference]: Start difference. First operand 598 states. Second operand 2 states. [2019-10-13 21:13:39,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:39,505 INFO L93 Difference]: Finished difference Result 871 states and 1182 transitions. [2019-10-13 21:13:39,506 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 21:13:39,507 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 195 [2019-10-13 21:13:39,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:39,530 INFO L225 Difference]: With dead ends: 871 [2019-10-13 21:13:39,530 INFO L226 Difference]: Without dead ends: 569 [2019-10-13 21:13:39,537 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:13:39,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2019-10-13 21:13:39,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 569. [2019-10-13 21:13:39,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 569 states. [2019-10-13 21:13:39,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 569 states and 775 transitions. [2019-10-13 21:13:39,659 INFO L78 Accepts]: Start accepts. Automaton has 569 states and 775 transitions. Word has length 195 [2019-10-13 21:13:39,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:39,663 INFO L462 AbstractCegarLoop]: Abstraction has 569 states and 775 transitions. [2019-10-13 21:13:39,663 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 21:13:39,664 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 775 transitions. [2019-10-13 21:13:39,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2019-10-13 21:13:39,669 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:39,671 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:13:39,672 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:39,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:39,672 INFO L82 PathProgramCache]: Analyzing trace with hash -156800952, now seen corresponding path program 1 times [2019-10-13 21:13:39,673 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:39,673 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473409661] [2019-10-13 21:13:39,673 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:39,673 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:39,673 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:39,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:40,038 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-13 21:13:40,039 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473409661] [2019-10-13 21:13:40,039 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:40,039 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:13:40,039 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082800942] [2019-10-13 21:13:40,042 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:13:40,043 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:40,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:13:40,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:13:40,043 INFO L87 Difference]: Start difference. First operand 569 states and 775 transitions. Second operand 3 states. [2019-10-13 21:13:40,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:40,095 INFO L93 Difference]: Finished difference Result 854 states and 1144 transitions. [2019-10-13 21:13:40,096 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:13:40,096 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 196 [2019-10-13 21:13:40,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:40,102 INFO L225 Difference]: With dead ends: 854 [2019-10-13 21:13:40,102 INFO L226 Difference]: Without dead ends: 572 [2019-10-13 21:13:40,105 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 21:13:40,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2019-10-13 21:13:40,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 571. [2019-10-13 21:13:40,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 571 states. [2019-10-13 21:13:40,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 777 transitions. [2019-10-13 21:13:40,137 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 777 transitions. Word has length 196 [2019-10-13 21:13:40,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:40,138 INFO L462 AbstractCegarLoop]: Abstraction has 571 states and 777 transitions. [2019-10-13 21:13:40,138 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:13:40,138 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 777 transitions. [2019-10-13 21:13:40,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2019-10-13 21:13:40,144 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:40,145 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:13:40,145 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:40,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:40,146 INFO L82 PathProgramCache]: Analyzing trace with hash -1398291401, now seen corresponding path program 1 times [2019-10-13 21:13:40,146 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:40,146 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603090863] [2019-10-13 21:13:40,147 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:40,147 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:40,147 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:40,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:40,364 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-13 21:13:40,365 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603090863] [2019-10-13 21:13:40,365 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:40,365 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:13:40,366 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321441736] [2019-10-13 21:13:40,366 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:13:40,367 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:40,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:13:40,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:13:40,368 INFO L87 Difference]: Start difference. First operand 571 states and 777 transitions. Second operand 3 states. [2019-10-13 21:13:40,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:40,405 INFO L93 Difference]: Finished difference Result 1122 states and 1558 transitions. [2019-10-13 21:13:40,405 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:13:40,405 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 208 [2019-10-13 21:13:40,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:40,410 INFO L225 Difference]: With dead ends: 1122 [2019-10-13 21:13:40,410 INFO L226 Difference]: Without dead ends: 616 [2019-10-13 21:13:40,412 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 21:13:40,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2019-10-13 21:13:40,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 615. [2019-10-13 21:13:40,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 615 states. [2019-10-13 21:13:40,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 852 transitions. [2019-10-13 21:13:40,437 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 852 transitions. Word has length 208 [2019-10-13 21:13:40,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:40,438 INFO L462 AbstractCegarLoop]: Abstraction has 615 states and 852 transitions. [2019-10-13 21:13:40,438 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:13:40,438 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 852 transitions. [2019-10-13 21:13:40,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2019-10-13 21:13:40,442 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:40,443 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:13:40,443 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:40,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:40,444 INFO L82 PathProgramCache]: Analyzing trace with hash -1218822354, now seen corresponding path program 1 times [2019-10-13 21:13:40,444 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:40,447 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552366447] [2019-10-13 21:13:40,447 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:40,447 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:40,447 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:40,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:40,772 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-13 21:13:40,775 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552366447] [2019-10-13 21:13:40,777 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:40,777 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:13:40,777 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614046698] [2019-10-13 21:13:40,778 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:13:40,779 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:40,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:13:40,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:13:40,780 INFO L87 Difference]: Start difference. First operand 615 states and 852 transitions. Second operand 3 states. [2019-10-13 21:13:40,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:40,834 INFO L93 Difference]: Finished difference Result 1251 states and 1778 transitions. [2019-10-13 21:13:40,835 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:13:40,835 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 209 [2019-10-13 21:13:40,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:40,845 INFO L225 Difference]: With dead ends: 1251 [2019-10-13 21:13:40,845 INFO L226 Difference]: Without dead ends: 701 [2019-10-13 21:13:40,848 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 21:13:40,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 701 states. [2019-10-13 21:13:40,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 701 to 700. [2019-10-13 21:13:40,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 700 states. [2019-10-13 21:13:40,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700 states to 700 states and 996 transitions. [2019-10-13 21:13:40,893 INFO L78 Accepts]: Start accepts. Automaton has 700 states and 996 transitions. Word has length 209 [2019-10-13 21:13:40,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:40,894 INFO L462 AbstractCegarLoop]: Abstraction has 700 states and 996 transitions. [2019-10-13 21:13:40,894 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:13:40,895 INFO L276 IsEmpty]: Start isEmpty. Operand 700 states and 996 transitions. [2019-10-13 21:13:40,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2019-10-13 21:13:40,903 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:40,903 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:13:40,904 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:40,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:40,904 INFO L82 PathProgramCache]: Analyzing trace with hash -1024895096, now seen corresponding path program 1 times [2019-10-13 21:13:40,905 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:40,905 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963828333] [2019-10-13 21:13:40,905 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:40,905 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:40,906 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:40,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:41,465 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-13 21:13:41,466 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963828333] [2019-10-13 21:13:41,466 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:41,466 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-10-13 21:13:41,467 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350197308] [2019-10-13 21:13:41,467 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-10-13 21:13:41,468 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:41,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-10-13 21:13:41,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2019-10-13 21:13:41,469 INFO L87 Difference]: Start difference. First operand 700 states and 996 transitions. Second operand 19 states. [2019-10-13 21:13:46,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:46,406 INFO L93 Difference]: Finished difference Result 2240 states and 3191 transitions. [2019-10-13 21:13:46,407 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2019-10-13 21:13:46,407 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 212 [2019-10-13 21:13:46,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:46,432 INFO L225 Difference]: With dead ends: 2240 [2019-10-13 21:13:46,432 INFO L226 Difference]: Without dead ends: 1971 [2019-10-13 21:13:46,437 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 707 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=287, Invalid=2683, Unknown=0, NotChecked=0, Total=2970 [2019-10-13 21:13:46,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1971 states. [2019-10-13 21:13:46,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1971 to 1934. [2019-10-13 21:13:46,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1934 states. [2019-10-13 21:13:46,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1934 states to 1934 states and 2772 transitions. [2019-10-13 21:13:46,570 INFO L78 Accepts]: Start accepts. Automaton has 1934 states and 2772 transitions. Word has length 212 [2019-10-13 21:13:46,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:46,572 INFO L462 AbstractCegarLoop]: Abstraction has 1934 states and 2772 transitions. [2019-10-13 21:13:46,572 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-10-13 21:13:46,572 INFO L276 IsEmpty]: Start isEmpty. Operand 1934 states and 2772 transitions. [2019-10-13 21:13:46,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2019-10-13 21:13:46,580 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:46,581 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:13:46,581 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:46,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:46,581 INFO L82 PathProgramCache]: Analyzing trace with hash -1577885369, now seen corresponding path program 1 times [2019-10-13 21:13:46,582 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:46,582 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177074734] [2019-10-13 21:13:46,582 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:46,582 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:46,582 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:46,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:46,901 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-13 21:13:46,902 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177074734] [2019-10-13 21:13:46,902 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:46,902 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-13 21:13:46,903 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501820523] [2019-10-13 21:13:46,903 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 21:13:46,903 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:46,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 21:13:46,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-10-13 21:13:46,905 INFO L87 Difference]: Start difference. First operand 1934 states and 2772 transitions. Second operand 11 states. [2019-10-13 21:13:47,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:47,415 INFO L93 Difference]: Finished difference Result 3191 states and 4529 transitions. [2019-10-13 21:13:47,415 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-13 21:13:47,416 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 213 [2019-10-13 21:13:47,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:47,437 INFO L225 Difference]: With dead ends: 3191 [2019-10-13 21:13:47,437 INFO L226 Difference]: Without dead ends: 2056 [2019-10-13 21:13:47,448 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2019-10-13 21:13:47,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2056 states. [2019-10-13 21:13:47,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2056 to 2056. [2019-10-13 21:13:47,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2056 states. [2019-10-13 21:13:47,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2056 states to 2056 states and 2969 transitions. [2019-10-13 21:13:47,650 INFO L78 Accepts]: Start accepts. Automaton has 2056 states and 2969 transitions. Word has length 213 [2019-10-13 21:13:47,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:47,651 INFO L462 AbstractCegarLoop]: Abstraction has 2056 states and 2969 transitions. [2019-10-13 21:13:47,651 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-13 21:13:47,652 INFO L276 IsEmpty]: Start isEmpty. Operand 2056 states and 2969 transitions. [2019-10-13 21:13:47,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2019-10-13 21:13:47,666 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:47,667 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:13:47,667 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:47,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:47,668 INFO L82 PathProgramCache]: Analyzing trace with hash 1520134915, now seen corresponding path program 1 times [2019-10-13 21:13:47,668 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:47,668 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65293581] [2019-10-13 21:13:47,669 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:47,669 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:47,669 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:47,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:48,063 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-13 21:13:48,063 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65293581] [2019-10-13 21:13:48,064 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:48,064 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2019-10-13 21:13:48,064 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997608132] [2019-10-13 21:13:48,065 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-10-13 21:13:48,065 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:48,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-10-13 21:13:48,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2019-10-13 21:13:48,066 INFO L87 Difference]: Start difference. First operand 2056 states and 2969 transitions. Second operand 15 states. [2019-10-13 21:13:51,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:51,789 INFO L93 Difference]: Finished difference Result 3371 states and 4832 transitions. [2019-10-13 21:13:51,790 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2019-10-13 21:13:51,790 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 213 [2019-10-13 21:13:51,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:51,813 INFO L225 Difference]: With dead ends: 3371 [2019-10-13 21:13:51,814 INFO L226 Difference]: Without dead ends: 2174 [2019-10-13 21:13:51,819 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 512 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=229, Invalid=1933, Unknown=0, NotChecked=0, Total=2162 [2019-10-13 21:13:51,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2174 states. [2019-10-13 21:13:51,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2174 to 2137. [2019-10-13 21:13:51,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2137 states. [2019-10-13 21:13:51,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2137 states to 2137 states and 3106 transitions. [2019-10-13 21:13:51,963 INFO L78 Accepts]: Start accepts. Automaton has 2137 states and 3106 transitions. Word has length 213 [2019-10-13 21:13:51,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:51,965 INFO L462 AbstractCegarLoop]: Abstraction has 2137 states and 3106 transitions. [2019-10-13 21:13:51,965 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-10-13 21:13:51,966 INFO L276 IsEmpty]: Start isEmpty. Operand 2137 states and 3106 transitions. [2019-10-13 21:13:51,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2019-10-13 21:13:51,978 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:51,979 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:13:51,979 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:51,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:51,980 INFO L82 PathProgramCache]: Analyzing trace with hash -455156519, now seen corresponding path program 1 times [2019-10-13 21:13:51,980 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:51,981 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900100605] [2019-10-13 21:13:51,981 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:51,981 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:51,981 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:52,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:52,396 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-10-13 21:13:52,396 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900100605] [2019-10-13 21:13:52,396 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:52,397 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2019-10-13 21:13:52,397 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070824408] [2019-10-13 21:13:52,398 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-13 21:13:52,398 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:52,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-13 21:13:52,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2019-10-13 21:13:52,399 INFO L87 Difference]: Start difference. First operand 2137 states and 3106 transitions. Second operand 16 states. [2019-10-13 21:13:52,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:52,862 INFO L93 Difference]: Finished difference Result 3482 states and 4997 transitions. [2019-10-13 21:13:52,863 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-13 21:13:52,863 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 213 [2019-10-13 21:13:52,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:52,876 INFO L225 Difference]: With dead ends: 3482 [2019-10-13 21:13:52,877 INFO L226 Difference]: Without dead ends: 2184 [2019-10-13 21:13:52,883 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2019-10-13 21:13:52,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2184 states. [2019-10-13 21:13:53,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2184 to 2182. [2019-10-13 21:13:53,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2182 states. [2019-10-13 21:13:53,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2182 states to 2182 states and 3147 transitions. [2019-10-13 21:13:53,021 INFO L78 Accepts]: Start accepts. Automaton has 2182 states and 3147 transitions. Word has length 213 [2019-10-13 21:13:53,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:53,021 INFO L462 AbstractCegarLoop]: Abstraction has 2182 states and 3147 transitions. [2019-10-13 21:13:53,021 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-10-13 21:13:53,021 INFO L276 IsEmpty]: Start isEmpty. Operand 2182 states and 3147 transitions. [2019-10-13 21:13:53,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2019-10-13 21:13:53,030 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:53,030 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:13:53,030 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:53,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:53,031 INFO L82 PathProgramCache]: Analyzing trace with hash -669130923, now seen corresponding path program 1 times [2019-10-13 21:13:53,031 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:53,031 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255080435] [2019-10-13 21:13:53,031 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:53,032 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:53,032 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:53,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:53,226 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-13 21:13:53,227 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255080435] [2019-10-13 21:13:53,229 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:53,229 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 21:13:53,230 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070832764] [2019-10-13 21:13:53,230 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 21:13:53,231 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:53,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 21:13:53,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 21:13:53,232 INFO L87 Difference]: Start difference. First operand 2182 states and 3147 transitions. Second operand 5 states. [2019-10-13 21:13:54,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:54,384 INFO L93 Difference]: Finished difference Result 5250 states and 7491 transitions. [2019-10-13 21:13:54,388 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 21:13:54,389 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 213 [2019-10-13 21:13:54,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:54,421 INFO L225 Difference]: With dead ends: 5250 [2019-10-13 21:13:54,422 INFO L226 Difference]: Without dead ends: 4583 [2019-10-13 21:13:54,428 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-13 21:13:54,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4583 states. [2019-10-13 21:13:54,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4583 to 4569. [2019-10-13 21:13:54,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4569 states. [2019-10-13 21:13:54,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4569 states to 4569 states and 6556 transitions. [2019-10-13 21:13:54,681 INFO L78 Accepts]: Start accepts. Automaton has 4569 states and 6556 transitions. Word has length 213 [2019-10-13 21:13:54,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:54,682 INFO L462 AbstractCegarLoop]: Abstraction has 4569 states and 6556 transitions. [2019-10-13 21:13:54,682 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 21:13:54,682 INFO L276 IsEmpty]: Start isEmpty. Operand 4569 states and 6556 transitions. [2019-10-13 21:13:54,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2019-10-13 21:13:54,697 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:54,697 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:13:54,698 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:54,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:54,698 INFO L82 PathProgramCache]: Analyzing trace with hash -1624652202, now seen corresponding path program 1 times [2019-10-13 21:13:54,699 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:54,699 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558135059] [2019-10-13 21:13:54,699 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:54,699 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:54,699 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:54,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:54,988 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-13 21:13:54,989 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558135059] [2019-10-13 21:13:54,990 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:54,990 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 21:13:54,990 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190324041] [2019-10-13 21:13:54,991 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 21:13:54,992 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:54,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 21:13:54,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 21:13:54,993 INFO L87 Difference]: Start difference. First operand 4569 states and 6556 transitions. Second operand 7 states. [2019-10-13 21:13:57,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:57,148 INFO L93 Difference]: Finished difference Result 14668 states and 22678 transitions. [2019-10-13 21:13:57,148 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-13 21:13:57,148 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 213 [2019-10-13 21:13:57,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:57,322 INFO L225 Difference]: With dead ends: 14668 [2019-10-13 21:13:57,322 INFO L226 Difference]: Without dead ends: 11355 [2019-10-13 21:13:57,347 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2019-10-13 21:13:57,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11355 states. [2019-10-13 21:13:57,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11355 to 11349. [2019-10-13 21:13:57,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11349 states. [2019-10-13 21:13:57,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11349 states to 11349 states and 17302 transitions. [2019-10-13 21:13:57,892 INFO L78 Accepts]: Start accepts. Automaton has 11349 states and 17302 transitions. Word has length 213 [2019-10-13 21:13:57,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:57,894 INFO L462 AbstractCegarLoop]: Abstraction has 11349 states and 17302 transitions. [2019-10-13 21:13:57,894 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 21:13:57,894 INFO L276 IsEmpty]: Start isEmpty. Operand 11349 states and 17302 transitions. [2019-10-13 21:13:57,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2019-10-13 21:13:57,908 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:57,908 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:13:57,908 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:57,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:57,909 INFO L82 PathProgramCache]: Analyzing trace with hash 902999511, now seen corresponding path program 1 times [2019-10-13 21:13:57,909 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:57,909 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510310884] [2019-10-13 21:13:57,909 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:57,910 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:57,910 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:57,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:58,420 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-13 21:13:58,420 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510310884] [2019-10-13 21:13:58,420 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:58,421 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2019-10-13 21:13:58,421 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309341592] [2019-10-13 21:13:58,422 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2019-10-13 21:13:58,422 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:58,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2019-10-13 21:13:58,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=703, Unknown=0, NotChecked=0, Total=756 [2019-10-13 21:13:58,423 INFO L87 Difference]: Start difference. First operand 11349 states and 17302 transitions. Second operand 28 states. [2019-10-13 21:13:59,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:59,791 INFO L93 Difference]: Finished difference Result 22913 states and 35757 transitions. [2019-10-13 21:13:59,792 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2019-10-13 21:13:59,792 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 214 [2019-10-13 21:13:59,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:59,872 INFO L225 Difference]: With dead ends: 22913 [2019-10-13 21:13:59,872 INFO L226 Difference]: Without dead ends: 12820 [2019-10-13 21:13:59,932 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=101, Invalid=1459, Unknown=0, NotChecked=0, Total=1560 [2019-10-13 21:13:59,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12820 states. [2019-10-13 21:14:01,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12820 to 12799. [2019-10-13 21:14:01,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12799 states. [2019-10-13 21:14:01,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12799 states to 12799 states and 19557 transitions. [2019-10-13 21:14:01,422 INFO L78 Accepts]: Start accepts. Automaton has 12799 states and 19557 transitions. Word has length 214 [2019-10-13 21:14:01,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:14:01,423 INFO L462 AbstractCegarLoop]: Abstraction has 12799 states and 19557 transitions. [2019-10-13 21:14:01,424 INFO L463 AbstractCegarLoop]: Interpolant automaton has 28 states. [2019-10-13 21:14:01,424 INFO L276 IsEmpty]: Start isEmpty. Operand 12799 states and 19557 transitions. [2019-10-13 21:14:01,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2019-10-13 21:14:01,440 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:14:01,441 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:14:01,441 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:14:01,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:14:01,441 INFO L82 PathProgramCache]: Analyzing trace with hash 338732121, now seen corresponding path program 1 times [2019-10-13 21:14:01,442 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:14:01,442 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365508427] [2019-10-13 21:14:01,442 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:01,442 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:01,442 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:14:01,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:14:01,661 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-13 21:14:01,661 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365508427] [2019-10-13 21:14:01,661 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:14:01,661 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-13 21:14:01,662 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506220108] [2019-10-13 21:14:01,662 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-13 21:14:01,662 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:14:01,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-13 21:14:01,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-13 21:14:01,663 INFO L87 Difference]: Start difference. First operand 12799 states and 19557 transitions. Second operand 10 states. [2019-10-13 21:14:01,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:14:01,877 INFO L93 Difference]: Finished difference Result 12922 states and 19739 transitions. [2019-10-13 21:14:01,877 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-13 21:14:01,878 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 218 [2019-10-13 21:14:01,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:14:01,950 INFO L225 Difference]: With dead ends: 12922 [2019-10-13 21:14:01,951 INFO L226 Difference]: Without dead ends: 12919 [2019-10-13 21:14:01,961 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-13 21:14:01,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12919 states. [2019-10-13 21:14:02,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12919 to 12919. [2019-10-13 21:14:02,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12919 states. [2019-10-13 21:14:02,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12919 states to 12919 states and 19697 transitions. [2019-10-13 21:14:02,699 INFO L78 Accepts]: Start accepts. Automaton has 12919 states and 19697 transitions. Word has length 218 [2019-10-13 21:14:02,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:14:02,699 INFO L462 AbstractCegarLoop]: Abstraction has 12919 states and 19697 transitions. [2019-10-13 21:14:02,700 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-13 21:14:02,700 INFO L276 IsEmpty]: Start isEmpty. Operand 12919 states and 19697 transitions. [2019-10-13 21:14:02,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2019-10-13 21:14:02,714 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:14:02,714 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:14:02,715 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:14:02,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:14:02,715 INFO L82 PathProgramCache]: Analyzing trace with hash 1284073295, now seen corresponding path program 1 times [2019-10-13 21:14:02,715 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:14:02,716 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828873038] [2019-10-13 21:14:02,716 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:02,716 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:02,716 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:14:02,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:14:02,864 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-13 21:14:02,865 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828873038] [2019-10-13 21:14:02,865 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:14:02,865 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 21:14:02,865 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374141119] [2019-10-13 21:14:02,866 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 21:14:02,866 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:14:02,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 21:14:02,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 21:14:02,867 INFO L87 Difference]: Start difference. First operand 12919 states and 19697 transitions. Second operand 5 states. [2019-10-13 21:14:03,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:14:03,141 INFO L93 Difference]: Finished difference Result 24536 states and 37989 transitions. [2019-10-13 21:14:03,141 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 21:14:03,141 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 223 [2019-10-13 21:14:03,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:14:03,217 INFO L225 Difference]: With dead ends: 24536 [2019-10-13 21:14:03,217 INFO L226 Difference]: Without dead ends: 13330 [2019-10-13 21:14:03,257 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 21:14:03,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13330 states. [2019-10-13 21:14:04,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13330 to 13123. [2019-10-13 21:14:04,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13123 states. [2019-10-13 21:14:04,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13123 states to 13123 states and 19906 transitions. [2019-10-13 21:14:04,076 INFO L78 Accepts]: Start accepts. Automaton has 13123 states and 19906 transitions. Word has length 223 [2019-10-13 21:14:04,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:14:04,076 INFO L462 AbstractCegarLoop]: Abstraction has 13123 states and 19906 transitions. [2019-10-13 21:14:04,076 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 21:14:04,076 INFO L276 IsEmpty]: Start isEmpty. Operand 13123 states and 19906 transitions. [2019-10-13 21:14:04,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2019-10-13 21:14:04,093 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:14:04,093 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:14:04,093 INFO L410 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:14:04,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:14:04,094 INFO L82 PathProgramCache]: Analyzing trace with hash -1663872811, now seen corresponding path program 1 times [2019-10-13 21:14:04,094 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:14:04,094 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326271511] [2019-10-13 21:14:04,094 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:04,094 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:04,095 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:14:04,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:14:04,251 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-13 21:14:04,252 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326271511] [2019-10-13 21:14:04,252 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:14:04,252 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 21:14:04,252 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134463174] [2019-10-13 21:14:04,253 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 21:14:04,253 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:14:04,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 21:14:04,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 21:14:04,254 INFO L87 Difference]: Start difference. First operand 13123 states and 19906 transitions. Second operand 5 states. [2019-10-13 21:14:04,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:14:04,542 INFO L93 Difference]: Finished difference Result 22527 states and 33920 transitions. [2019-10-13 21:14:04,542 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 21:14:04,543 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 225 [2019-10-13 21:14:04,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:14:04,586 INFO L225 Difference]: With dead ends: 22527 [2019-10-13 21:14:04,586 INFO L226 Difference]: Without dead ends: 10600 [2019-10-13 21:14:04,621 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-13 21:14:04,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10600 states. [2019-10-13 21:14:05,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10600 to 10590. [2019-10-13 21:14:05,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10590 states. [2019-10-13 21:14:05,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10590 states to 10590 states and 15929 transitions. [2019-10-13 21:14:05,085 INFO L78 Accepts]: Start accepts. Automaton has 10590 states and 15929 transitions. Word has length 225 [2019-10-13 21:14:05,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:14:05,086 INFO L462 AbstractCegarLoop]: Abstraction has 10590 states and 15929 transitions. [2019-10-13 21:14:05,086 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 21:14:05,086 INFO L276 IsEmpty]: Start isEmpty. Operand 10590 states and 15929 transitions. [2019-10-13 21:14:05,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2019-10-13 21:14:05,097 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:14:05,098 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:14:05,098 INFO L410 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:14:05,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:14:05,098 INFO L82 PathProgramCache]: Analyzing trace with hash 965874213, now seen corresponding path program 1 times [2019-10-13 21:14:05,099 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:14:05,099 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876775050] [2019-10-13 21:14:05,099 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:05,099 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:05,099 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:14:05,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:14:05,492 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-13 21:14:05,493 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876775050] [2019-10-13 21:14:05,493 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:14:05,493 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 21:14:05,493 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525727724] [2019-10-13 21:14:05,494 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 21:14:05,494 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:14:05,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 21:14:05,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 21:14:05,495 INFO L87 Difference]: Start difference. First operand 10590 states and 15929 transitions. Second operand 6 states. [2019-10-13 21:14:06,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:14:06,389 INFO L93 Difference]: Finished difference Result 30742 states and 47178 transitions. [2019-10-13 21:14:06,390 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 21:14:06,390 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 224 [2019-10-13 21:14:06,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:14:06,502 INFO L225 Difference]: With dead ends: 30742 [2019-10-13 21:14:06,502 INFO L226 Difference]: Without dead ends: 21427 [2019-10-13 21:14:06,543 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72