java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/email_spec6_product29.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:15:54,588 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:15:54,591 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:15:54,612 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:15:54,612 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:15:54,614 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:15:54,616 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:15:54,626 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:15:54,628 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:15:54,629 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:15:54,630 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:15:54,631 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:15:54,632 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:15:54,633 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:15:54,633 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:15:54,635 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:15:54,635 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:15:54,636 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:15:54,638 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:15:54,640 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:15:54,641 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:15:54,642 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:15:54,643 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:15:54,644 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:15:54,646 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 03:15:54,647 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 03:15:54,647 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 03:15:54,648 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 03:15:54,648 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 03:15:54,649 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 03:15:54,649 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:15:54,650 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:15:54,651 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:15:54,651 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:15:54,652 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:15:54,653 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:15:54,653 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:15:54,653 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:15:54,654 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:15:54,655 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:15:54,655 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:15:54,656 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 03:15:54,670 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:15:54,671 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:15:54,672 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:15:54,672 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:15:54,672 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:15:54,673 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:15:54,673 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:15:54,673 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:15:54,673 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:15:54,673 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:15:54,674 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:15:54,674 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:15:54,674 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:15:54,674 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:15:54,674 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:15:54,674 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:15:54,675 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:15:54,675 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:15:54,675 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:15:54,675 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:15:54,675 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:15:54,676 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:15:54,676 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:15:54,676 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:15:54,676 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:15:54,677 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:15:54,677 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:15:54,677 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:15:54,677 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-15 03:15:54,955 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:15:54,969 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:15:54,972 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:15:54,974 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:15:54,974 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:15:54,975 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec6_product29.cil.c [2019-10-15 03:15:55,040 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/996e4f208/207d4dd21ae34871a064b4d78d52edce/FLAG9d7550aaf [2019-10-15 03:15:55,725 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:15:55,726 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec6_product29.cil.c [2019-10-15 03:15:55,746 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/996e4f208/207d4dd21ae34871a064b4d78d52edce/FLAG9d7550aaf [2019-10-15 03:15:55,898 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/996e4f208/207d4dd21ae34871a064b4d78d52edce [2019-10-15 03:15:55,908 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:15:55,910 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:15:55,911 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:15:55,911 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:15:55,914 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:15:55,915 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:15:55" (1/1) ... [2019-10-15 03:15:55,918 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d289120 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:55, skipping insertion in model container [2019-10-15 03:15:55,918 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:15:55" (1/1) ... [2019-10-15 03:15:55,925 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:15:56,000 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:15:56,817 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:15:56,846 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:15:57,015 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:15:57,155 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:15:57,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:57 WrapperNode [2019-10-15 03:15:57,156 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:15:57,157 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:15:57,157 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:15:57,157 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:15:57,173 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:57" (1/1) ... [2019-10-15 03:15:57,174 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:57" (1/1) ... [2019-10-15 03:15:57,238 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:57" (1/1) ... [2019-10-15 03:15:57,239 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:57" (1/1) ... [2019-10-15 03:15:57,311 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:57" (1/1) ... [2019-10-15 03:15:57,353 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:57" (1/1) ... [2019-10-15 03:15:57,380 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:57" (1/1) ... [2019-10-15 03:15:57,413 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:15:57,414 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:15:57,414 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:15:57,414 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:15:57,415 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:57" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:15:57,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:15:57,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:15:57,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 03:15:57,509 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 03:15:57,509 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 03:15:57,511 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 03:15:57,512 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 03:15:57,512 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 03:15:57,512 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 03:15:57,513 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 03:15:57,513 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 03:15:57,514 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 03:15:57,514 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:15:57,515 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 03:15:57,515 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 03:15:57,515 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 03:15:57,518 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 03:15:57,519 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 03:15:57,520 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 03:15:57,520 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 03:15:57,520 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 03:15:57,521 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 03:15:57,521 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-15 03:15:57,521 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 03:15:57,522 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 03:15:57,522 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 03:15:57,522 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 03:15:57,522 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 03:15:57,523 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 03:15:57,523 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-15 03:15:57,523 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-15 03:15:57,523 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 03:15:57,524 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 03:15:57,524 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 03:15:57,524 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 03:15:57,525 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 03:15:57,525 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 03:15:57,525 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 03:15:57,525 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 03:15:57,525 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 03:15:57,526 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 03:15:57,526 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 03:15:57,526 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 03:15:57,526 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 03:15:57,526 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 03:15:57,526 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 03:15:57,526 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 03:15:57,527 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 03:15:57,527 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 03:15:57,527 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 03:15:57,527 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 03:15:57,527 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 03:15:57,527 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 03:15:57,527 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 03:15:57,528 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 03:15:57,528 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 03:15:57,528 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 03:15:57,528 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 03:15:57,528 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 03:15:57,529 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 03:15:57,529 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 03:15:57,529 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 03:15:57,529 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 03:15:57,530 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 03:15:57,530 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 03:15:57,530 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 03:15:57,530 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 03:15:57,531 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 03:15:57,531 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-15 03:15:57,531 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-15 03:15:57,531 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 03:15:57,531 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 03:15:57,531 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 03:15:57,532 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 03:15:57,532 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 03:15:57,532 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 03:15:57,533 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 03:15:57,533 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 03:15:57,533 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 03:15:57,533 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 03:15:57,534 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 03:15:57,535 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 03:15:57,535 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 03:15:57,535 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 03:15:57,535 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 03:15:57,535 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 03:15:57,535 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 03:15:57,536 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 03:15:57,536 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 03:15:57,536 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 03:15:57,537 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 03:15:57,537 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 03:15:57,537 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 03:15:57,537 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 03:15:57,537 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 03:15:57,537 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 03:15:57,537 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 03:15:57,538 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 03:15:57,538 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-15 03:15:57,538 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-15 03:15:57,538 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 03:15:57,538 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 03:15:57,538 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-15 03:15:57,539 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-15 03:15:57,539 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 03:15:57,539 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 03:15:57,539 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 03:15:57,539 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 03:15:57,540 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 03:15:57,540 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 03:15:57,540 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 03:15:57,540 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 03:15:57,541 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 03:15:57,541 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-15 03:15:57,541 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-15 03:15:57,541 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-15 03:15:57,541 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:15:57,542 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:15:57,542 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 03:15:57,542 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 03:15:57,543 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 03:15:57,543 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 03:15:57,544 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 03:15:57,544 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 03:15:57,546 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 03:15:57,546 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 03:15:57,546 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 03:15:57,546 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 03:15:57,546 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 03:15:57,547 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 03:15:57,547 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 03:15:57,547 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 03:15:57,548 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 03:15:57,549 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 03:15:57,553 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 03:15:57,553 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 03:15:57,554 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 03:15:57,554 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 03:15:57,555 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 03:15:57,555 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 03:15:57,555 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 03:15:57,555 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 03:15:57,556 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 03:15:57,556 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 03:15:57,563 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 03:15:57,563 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 03:15:57,563 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:15:57,563 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 03:15:57,563 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 03:15:57,563 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 03:15:57,564 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 03:15:57,564 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 03:15:57,564 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 03:15:57,566 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 03:15:57,566 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 03:15:57,566 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 03:15:57,566 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-15 03:15:57,567 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 03:15:57,567 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 03:15:57,567 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 03:15:57,567 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 03:15:57,567 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 03:15:57,567 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 03:15:57,568 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 03:15:57,568 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 03:15:57,568 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 03:15:57,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 03:15:57,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 03:15:57,569 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 03:15:57,569 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 03:15:57,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 03:15:57,569 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 03:15:57,569 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 03:15:57,570 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 03:15:57,570 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 03:15:57,570 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 03:15:57,570 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 03:15:57,570 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 03:15:57,571 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 03:15:57,571 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 03:15:57,571 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 03:15:57,571 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 03:15:57,571 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-15 03:15:57,572 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-15 03:15:57,572 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 03:15:57,572 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 03:15:57,572 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 03:15:57,572 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 03:15:57,573 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 03:15:57,573 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 03:15:57,573 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 03:15:57,573 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 03:15:57,573 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 03:15:57,574 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 03:15:57,574 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 03:15:57,574 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 03:15:57,574 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 03:15:57,574 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 03:15:57,574 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 03:15:57,575 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 03:15:57,575 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 03:15:57,575 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 03:15:57,575 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 03:15:57,575 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 03:15:57,576 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 03:15:57,576 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 03:15:57,576 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 03:15:57,576 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 03:15:57,576 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 03:15:57,576 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 03:15:57,577 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 03:15:57,577 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 03:15:57,577 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 03:15:57,577 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 03:15:57,578 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 03:15:57,578 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 03:15:57,578 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 03:15:57,578 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-15 03:15:57,579 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-15 03:15:57,579 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 03:15:57,579 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 03:15:57,579 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 03:15:57,579 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 03:15:57,580 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 03:15:57,580 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 03:15:57,580 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 03:15:57,580 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 03:15:57,581 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 03:15:57,581 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 03:15:57,581 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 03:15:57,581 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 03:15:57,582 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 03:15:57,582 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 03:15:57,582 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 03:15:57,582 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 03:15:57,582 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 03:15:57,582 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-15 03:15:57,583 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-15 03:15:57,583 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-15 03:15:57,583 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 03:15:57,583 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-15 03:15:57,583 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-15 03:15:57,583 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-15 03:15:57,584 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-15 03:15:57,584 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:15:57,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 03:15:57,584 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:16:02,440 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:16:02,441 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 03:16:02,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:16:02 BoogieIcfgContainer [2019-10-15 03:16:02,443 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:16:02,444 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:16:02,445 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:16:02,448 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:16:02,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:15:55" (1/3) ... [2019-10-15 03:16:02,449 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66b9371f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:16:02, skipping insertion in model container [2019-10-15 03:16:02,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:57" (2/3) ... [2019-10-15 03:16:02,450 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66b9371f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:16:02, skipping insertion in model container [2019-10-15 03:16:02,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:16:02" (3/3) ... [2019-10-15 03:16:02,452 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec6_product29.cil.c [2019-10-15 03:16:02,462 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:16:02,472 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:16:02,483 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:16:02,514 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:16:02,514 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:16:02,514 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:16:02,515 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:16:02,515 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:16:02,515 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:16:02,515 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:16:02,515 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:16:02,545 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states. [2019-10-15 03:16:02,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2019-10-15 03:16:02,565 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:16:02,566 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:16:02,569 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:16:02,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:16:02,575 INFO L82 PathProgramCache]: Analyzing trace with hash -1311339038, now seen corresponding path program 1 times [2019-10-15 03:16:02,584 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:16:02,584 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537558808] [2019-10-15 03:16:02,584 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:02,585 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:02,585 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:16:03,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:16:03,308 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 03:16:03,309 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537558808] [2019-10-15 03:16:03,309 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:16:03,310 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 03:16:03,310 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066270073] [2019-10-15 03:16:03,315 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 03:16:03,316 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:16:03,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 03:16:03,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:16:03,333 INFO L87 Difference]: Start difference. First operand 425 states. Second operand 2 states. [2019-10-15 03:16:03,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:16:03,401 INFO L93 Difference]: Finished difference Result 597 states and 718 transitions. [2019-10-15 03:16:03,401 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 03:16:03,403 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 154 [2019-10-15 03:16:03,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:16:03,425 INFO L225 Difference]: With dead ends: 597 [2019-10-15 03:16:03,425 INFO L226 Difference]: Without dead ends: 377 [2019-10-15 03:16:03,435 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:16:03,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2019-10-15 03:16:03,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 377. [2019-10-15 03:16:03,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 377 states. [2019-10-15 03:16:03,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 449 transitions. [2019-10-15 03:16:03,530 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 449 transitions. Word has length 154 [2019-10-15 03:16:03,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:16:03,532 INFO L462 AbstractCegarLoop]: Abstraction has 377 states and 449 transitions. [2019-10-15 03:16:03,532 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 03:16:03,532 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 449 transitions. [2019-10-15 03:16:03,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2019-10-15 03:16:03,539 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:16:03,539 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:16:03,540 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:16:03,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:16:03,540 INFO L82 PathProgramCache]: Analyzing trace with hash 572850053, now seen corresponding path program 1 times [2019-10-15 03:16:03,540 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:16:03,541 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657403983] [2019-10-15 03:16:03,541 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:03,541 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:03,541 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:16:03,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:16:03,908 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 03:16:03,908 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657403983] [2019-10-15 03:16:03,908 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:16:03,909 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:16:03,909 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376879864] [2019-10-15 03:16:03,913 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:16:03,914 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:16:03,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:16:03,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:16:03,915 INFO L87 Difference]: Start difference. First operand 377 states and 449 transitions. Second operand 3 states. [2019-10-15 03:16:03,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:16:03,967 INFO L93 Difference]: Finished difference Result 582 states and 685 transitions. [2019-10-15 03:16:03,968 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:16:03,968 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 155 [2019-10-15 03:16:03,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:16:03,973 INFO L225 Difference]: With dead ends: 582 [2019-10-15 03:16:03,974 INFO L226 Difference]: Without dead ends: 379 [2019-10-15 03:16:03,977 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:16:03,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2019-10-15 03:16:04,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 379. [2019-10-15 03:16:04,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 379 states. [2019-10-15 03:16:04,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 451 transitions. [2019-10-15 03:16:04,018 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 451 transitions. Word has length 155 [2019-10-15 03:16:04,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:16:04,019 INFO L462 AbstractCegarLoop]: Abstraction has 379 states and 451 transitions. [2019-10-15 03:16:04,019 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:16:04,019 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 451 transitions. [2019-10-15 03:16:04,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2019-10-15 03:16:04,023 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:16:04,023 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:16:04,023 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:16:04,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:16:04,024 INFO L82 PathProgramCache]: Analyzing trace with hash -113502009, now seen corresponding path program 1 times [2019-10-15 03:16:04,024 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:16:04,024 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925000626] [2019-10-15 03:16:04,024 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:04,025 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:04,025 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:16:04,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:16:04,293 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 03:16:04,293 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925000626] [2019-10-15 03:16:04,294 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:16:04,294 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:16:04,294 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994905089] [2019-10-15 03:16:04,297 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:16:04,298 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:16:04,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:16:04,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:16:04,299 INFO L87 Difference]: Start difference. First operand 379 states and 451 transitions. Second operand 3 states. [2019-10-15 03:16:04,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:16:04,359 INFO L93 Difference]: Finished difference Result 740 states and 909 transitions. [2019-10-15 03:16:04,360 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:16:04,360 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 160 [2019-10-15 03:16:04,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:16:04,364 INFO L225 Difference]: With dead ends: 740 [2019-10-15 03:16:04,365 INFO L226 Difference]: Without dead ends: 419 [2019-10-15 03:16:04,368 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:16:04,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2019-10-15 03:16:04,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 418. [2019-10-15 03:16:04,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2019-10-15 03:16:04,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 519 transitions. [2019-10-15 03:16:04,413 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 519 transitions. Word has length 160 [2019-10-15 03:16:04,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:16:04,415 INFO L462 AbstractCegarLoop]: Abstraction has 418 states and 519 transitions. [2019-10-15 03:16:04,415 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:16:04,415 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 519 transitions. [2019-10-15 03:16:04,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2019-10-15 03:16:04,423 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:16:04,424 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:16:04,424 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:16:04,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:16:04,425 INFO L82 PathProgramCache]: Analyzing trace with hash 318130641, now seen corresponding path program 1 times [2019-10-15 03:16:04,425 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:16:04,426 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211718940] [2019-10-15 03:16:04,426 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:04,426 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:04,426 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:16:04,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:16:05,217 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-15 03:16:05,218 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211718940] [2019-10-15 03:16:05,218 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:16:05,218 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2019-10-15 03:16:05,219 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034952068] [2019-10-15 03:16:05,219 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-10-15 03:16:05,220 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:16:05,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-10-15 03:16:05,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=584, Unknown=0, NotChecked=0, Total=650 [2019-10-15 03:16:05,221 INFO L87 Difference]: Start difference. First operand 418 states and 519 transitions. Second operand 26 states. [2019-10-15 03:16:15,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:16:15,300 INFO L93 Difference]: Finished difference Result 1146 states and 1423 transitions. [2019-10-15 03:16:15,301 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2019-10-15 03:16:15,301 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 161 [2019-10-15 03:16:15,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:16:15,315 INFO L225 Difference]: With dead ends: 1146 [2019-10-15 03:16:15,315 INFO L226 Difference]: Without dead ends: 947 [2019-10-15 03:16:15,319 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 620 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=294, Invalid=2898, Unknown=0, NotChecked=0, Total=3192 [2019-10-15 03:16:15,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 947 states. [2019-10-15 03:16:15,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 947 to 934. [2019-10-15 03:16:15,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 934 states. [2019-10-15 03:16:15,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 934 states to 934 states and 1141 transitions. [2019-10-15 03:16:15,404 INFO L78 Accepts]: Start accepts. Automaton has 934 states and 1141 transitions. Word has length 161 [2019-10-15 03:16:15,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:16:15,406 INFO L462 AbstractCegarLoop]: Abstraction has 934 states and 1141 transitions. [2019-10-15 03:16:15,406 INFO L463 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-10-15 03:16:15,406 INFO L276 IsEmpty]: Start isEmpty. Operand 934 states and 1141 transitions. [2019-10-15 03:16:15,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2019-10-15 03:16:15,411 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:16:15,411 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:16:15,411 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:16:15,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:16:15,412 INFO L82 PathProgramCache]: Analyzing trace with hash -1823644212, now seen corresponding path program 1 times [2019-10-15 03:16:15,412 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:16:15,413 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676590961] [2019-10-15 03:16:15,413 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:15,413 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:15,413 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:16:15,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:16:15,915 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-15 03:16:15,916 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676590961] [2019-10-15 03:16:15,916 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:16:15,916 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2019-10-15 03:16:15,916 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353527380] [2019-10-15 03:16:15,918 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-15 03:16:15,918 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:16:15,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-15 03:16:15,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2019-10-15 03:16:15,920 INFO L87 Difference]: Start difference. First operand 934 states and 1141 transitions. Second operand 16 states. [2019-10-15 03:16:20,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:16:20,142 INFO L93 Difference]: Finished difference Result 2145 states and 2624 transitions. [2019-10-15 03:16:20,142 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-10-15 03:16:20,142 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 167 [2019-10-15 03:16:20,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:16:20,157 INFO L225 Difference]: With dead ends: 2145 [2019-10-15 03:16:20,158 INFO L226 Difference]: Without dead ends: 1776 [2019-10-15 03:16:20,161 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=139, Invalid=731, Unknown=0, NotChecked=0, Total=870 [2019-10-15 03:16:20,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1776 states. [2019-10-15 03:16:20,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1776 to 1728. [2019-10-15 03:16:20,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1728 states. [2019-10-15 03:16:20,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1728 states to 1728 states and 2103 transitions. [2019-10-15 03:16:20,295 INFO L78 Accepts]: Start accepts. Automaton has 1728 states and 2103 transitions. Word has length 167 [2019-10-15 03:16:20,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:16:20,295 INFO L462 AbstractCegarLoop]: Abstraction has 1728 states and 2103 transitions. [2019-10-15 03:16:20,296 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-10-15 03:16:20,296 INFO L276 IsEmpty]: Start isEmpty. Operand 1728 states and 2103 transitions. [2019-10-15 03:16:20,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2019-10-15 03:16:20,300 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:16:20,301 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:16:20,301 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:16:20,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:16:20,302 INFO L82 PathProgramCache]: Analyzing trace with hash 905761496, now seen corresponding path program 1 times [2019-10-15 03:16:20,302 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:16:20,302 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188791781] [2019-10-15 03:16:20,302 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:20,302 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:20,302 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:16:20,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:16:20,471 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 03:16:20,471 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188791781] [2019-10-15 03:16:20,472 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:16:20,472 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:16:20,472 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158805512] [2019-10-15 03:16:20,473 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:16:20,473 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:16:20,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:16:20,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:16:20,474 INFO L87 Difference]: Start difference. First operand 1728 states and 2103 transitions. Second operand 3 states. [2019-10-15 03:16:20,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:16:20,570 INFO L93 Difference]: Finished difference Result 3510 states and 4339 transitions. [2019-10-15 03:16:20,570 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:16:20,571 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 189 [2019-10-15 03:16:20,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:16:20,582 INFO L225 Difference]: With dead ends: 3510 [2019-10-15 03:16:20,582 INFO L226 Difference]: Without dead ends: 1840 [2019-10-15 03:16:20,590 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:16:20,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1840 states. [2019-10-15 03:16:20,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1840 to 1838. [2019-10-15 03:16:20,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1838 states. [2019-10-15 03:16:20,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 2294 transitions. [2019-10-15 03:16:20,711 INFO L78 Accepts]: Start accepts. Automaton has 1838 states and 2294 transitions. Word has length 189 [2019-10-15 03:16:20,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:16:20,713 INFO L462 AbstractCegarLoop]: Abstraction has 1838 states and 2294 transitions. [2019-10-15 03:16:20,713 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:16:20,713 INFO L276 IsEmpty]: Start isEmpty. Operand 1838 states and 2294 transitions. [2019-10-15 03:16:20,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2019-10-15 03:16:20,718 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:16:20,718 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-15 03:16:20,719 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:16:20,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:16:20,719 INFO L82 PathProgramCache]: Analyzing trace with hash -497776092, now seen corresponding path program 1 times [2019-10-15 03:16:20,719 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:16:20,723 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842113251] [2019-10-15 03:16:20,724 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:20,724 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:20,724 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:16:20,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:16:20,879 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2019-10-15 03:16:20,879 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842113251] [2019-10-15 03:16:20,879 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:16:20,879 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:16:20,880 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396674839] [2019-10-15 03:16:20,880 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:16:20,881 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:16:20,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:16:20,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:16:20,882 INFO L87 Difference]: Start difference. First operand 1838 states and 2294 transitions. Second operand 3 states. [2019-10-15 03:16:20,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:16:20,978 INFO L93 Difference]: Finished difference Result 3825 states and 4888 transitions. [2019-10-15 03:16:20,978 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:16:20,978 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 195 [2019-10-15 03:16:20,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:16:20,993 INFO L225 Difference]: With dead ends: 3825 [2019-10-15 03:16:20,993 INFO L226 Difference]: Without dead ends: 2045 [2019-10-15 03:16:21,000 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:16:21,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2045 states. [2019-10-15 03:16:21,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2045 to 2043. [2019-10-15 03:16:21,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2043 states. [2019-10-15 03:16:21,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2043 states to 2043 states and 2649 transitions. [2019-10-15 03:16:21,286 INFO L78 Accepts]: Start accepts. Automaton has 2043 states and 2649 transitions. Word has length 195 [2019-10-15 03:16:21,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:16:21,287 INFO L462 AbstractCegarLoop]: Abstraction has 2043 states and 2649 transitions. [2019-10-15 03:16:21,287 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:16:21,287 INFO L276 IsEmpty]: Start isEmpty. Operand 2043 states and 2649 transitions. [2019-10-15 03:16:21,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2019-10-15 03:16:21,295 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:16:21,296 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:16:21,296 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:16:21,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:16:21,297 INFO L82 PathProgramCache]: Analyzing trace with hash -753703558, now seen corresponding path program 1 times [2019-10-15 03:16:21,297 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:16:21,297 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081935783] [2019-10-15 03:16:21,298 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:21,298 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:21,298 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:16:21,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:16:21,680 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 03:16:21,680 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081935783] [2019-10-15 03:16:21,681 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:16:21,681 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-15 03:16:21,681 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316239265] [2019-10-15 03:16:21,682 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-15 03:16:21,682 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:16:21,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-15 03:16:21,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2019-10-15 03:16:21,683 INFO L87 Difference]: Start difference. First operand 2043 states and 2649 transitions. Second operand 12 states. [2019-10-15 03:16:26,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:16:26,138 INFO L93 Difference]: Finished difference Result 4276 states and 5709 transitions. [2019-10-15 03:16:26,139 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-10-15 03:16:26,139 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 191 [2019-10-15 03:16:26,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:16:26,169 INFO L225 Difference]: With dead ends: 4276 [2019-10-15 03:16:26,169 INFO L226 Difference]: Without dead ends: 3169 [2019-10-15 03:16:26,177 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=167, Invalid=589, Unknown=0, NotChecked=0, Total=756 [2019-10-15 03:16:26,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3169 states. [2019-10-15 03:16:26,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3169 to 2444. [2019-10-15 03:16:26,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2444 states. [2019-10-15 03:16:26,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2444 states to 2444 states and 3350 transitions. [2019-10-15 03:16:26,354 INFO L78 Accepts]: Start accepts. Automaton has 2444 states and 3350 transitions. Word has length 191 [2019-10-15 03:16:26,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:16:26,357 INFO L462 AbstractCegarLoop]: Abstraction has 2444 states and 3350 transitions. [2019-10-15 03:16:26,357 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-15 03:16:26,357 INFO L276 IsEmpty]: Start isEmpty. Operand 2444 states and 3350 transitions. [2019-10-15 03:16:26,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2019-10-15 03:16:26,366 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:16:26,366 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:16:26,367 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:16:26,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:16:26,368 INFO L82 PathProgramCache]: Analyzing trace with hash -912478951, now seen corresponding path program 1 times [2019-10-15 03:16:26,368 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:16:26,368 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742367478] [2019-10-15 03:16:26,368 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:26,443 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:26,444 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:16:26,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:16:26,648 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 03:16:26,648 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742367478] [2019-10-15 03:16:26,649 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:16:26,649 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:16:26,649 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351037101] [2019-10-15 03:16:26,650 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:16:26,650 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:16:26,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:16:26,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:16:26,651 INFO L87 Difference]: Start difference. First operand 2444 states and 3350 transitions. Second operand 3 states. [2019-10-15 03:16:26,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:16:26,756 INFO L93 Difference]: Finished difference Result 5111 states and 7156 transitions. [2019-10-15 03:16:26,756 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:16:26,756 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 192 [2019-10-15 03:16:26,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:16:26,773 INFO L225 Difference]: With dead ends: 5111 [2019-10-15 03:16:26,774 INFO L226 Difference]: Without dead ends: 2729 [2019-10-15 03:16:26,783 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:16:26,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2729 states. [2019-10-15 03:16:26,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2729 to 2728. [2019-10-15 03:16:26,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2728 states. [2019-10-15 03:16:26,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2728 states to 2728 states and 3850 transitions. [2019-10-15 03:16:26,973 INFO L78 Accepts]: Start accepts. Automaton has 2728 states and 3850 transitions. Word has length 192 [2019-10-15 03:16:26,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:16:26,974 INFO L462 AbstractCegarLoop]: Abstraction has 2728 states and 3850 transitions. [2019-10-15 03:16:26,974 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:16:26,974 INFO L276 IsEmpty]: Start isEmpty. Operand 2728 states and 3850 transitions. [2019-10-15 03:16:26,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2019-10-15 03:16:26,991 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:16:26,991 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:16:26,992 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:16:26,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:16:26,992 INFO L82 PathProgramCache]: Analyzing trace with hash -1339750124, now seen corresponding path program 1 times [2019-10-15 03:16:26,992 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:16:26,993 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009364299] [2019-10-15 03:16:26,993 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:26,993 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:26,993 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:16:27,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:16:27,310 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 03:16:27,311 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009364299] [2019-10-15 03:16:27,312 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:16:27,312 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-15 03:16:27,312 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658899494] [2019-10-15 03:16:27,313 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-15 03:16:27,313 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:16:27,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-15 03:16:27,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2019-10-15 03:16:27,314 INFO L87 Difference]: Start difference. First operand 2728 states and 3850 transitions. Second operand 12 states.