java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/email_spec8_product34.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:17:28,527 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:17:28,530 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:17:28,545 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:17:28,546 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:17:28,547 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:17:28,548 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:17:28,550 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:17:28,551 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:17:28,554 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:17:28,555 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:17:28,556 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:17:28,557 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:17:28,560 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:17:28,561 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:17:28,562 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:17:28,563 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:17:28,565 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:17:28,569 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:17:28,574 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:17:28,575 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:17:28,576 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:17:28,580 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:17:28,581 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:17:28,583 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 03:17:28,583 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 03:17:28,583 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 03:17:28,584 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 03:17:28,584 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 03:17:28,585 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 03:17:28,585 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:17:28,586 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:17:28,587 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:17:28,587 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:17:28,588 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:17:28,588 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:17:28,589 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:17:28,589 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:17:28,589 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:17:28,590 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:17:28,591 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:17:28,592 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 03:17:28,605 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:17:28,605 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:17:28,606 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:17:28,607 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:17:28,607 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:17:28,607 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:17:28,607 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:17:28,607 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:17:28,608 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:17:28,608 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:17:28,608 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:17:28,608 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:17:28,608 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:17:28,608 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:17:28,609 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:17:28,609 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:17:28,609 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:17:28,609 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:17:28,609 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:17:28,610 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:17:28,610 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:17:28,610 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:17:28,610 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:17:28,611 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:17:28,611 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:17:28,611 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:17:28,611 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:17:28,611 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:17:28,611 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 03:17:28,881 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:17:28,895 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:17:28,898 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:17:28,900 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:17:28,900 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:17:28,901 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec8_product34.cil.c [2019-10-15 03:17:28,978 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdc369da6/c684ef7020894adebb226fdc21455242/FLAG42cfa566b [2019-10-15 03:17:29,564 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:17:29,564 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec8_product34.cil.c [2019-10-15 03:17:29,599 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdc369da6/c684ef7020894adebb226fdc21455242/FLAG42cfa566b [2019-10-15 03:17:29,743 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdc369da6/c684ef7020894adebb226fdc21455242 [2019-10-15 03:17:29,752 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:17:29,754 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:17:29,755 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:17:29,755 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:17:29,758 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:17:29,759 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:17:29" (1/1) ... [2019-10-15 03:17:29,762 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cd48562 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:29, skipping insertion in model container [2019-10-15 03:17:29,762 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:17:29" (1/1) ... [2019-10-15 03:17:29,769 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:17:29,847 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:17:30,635 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:17:30,659 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:17:30,864 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:17:30,976 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:17:30,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:30 WrapperNode [2019-10-15 03:17:30,977 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:17:30,977 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:17:30,978 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:17:30,978 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:17:30,992 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:30" (1/1) ... [2019-10-15 03:17:30,993 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:30" (1/1) ... [2019-10-15 03:17:31,032 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:30" (1/1) ... [2019-10-15 03:17:31,035 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:30" (1/1) ... [2019-10-15 03:17:31,122 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:30" (1/1) ... [2019-10-15 03:17:31,162 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:30" (1/1) ... [2019-10-15 03:17:31,186 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:30" (1/1) ... [2019-10-15 03:17:31,214 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:17:31,215 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:17:31,215 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:17:31,215 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:17:31,216 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:30" (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 03:17:31,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:17:31,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:17:31,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 03:17:31,299 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 03:17:31,299 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 03:17:31,300 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 03:17:31,301 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 03:17:31,301 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 03:17:31,301 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 03:17:31,302 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 03:17:31,302 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 03:17:31,303 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 03:17:31,303 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 03:17:31,303 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 03:17:31,303 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 03:17:31,304 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 03:17:31,305 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 03:17:31,306 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 03:17:31,306 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 03:17:31,306 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 03:17:31,306 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 03:17:31,306 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 03:17:31,307 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 03:17:31,307 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 03:17:31,307 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 03:17:31,307 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 03:17:31,307 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 03:17:31,307 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 03:17:31,308 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 03:17:31,309 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 03:17:31,309 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 03:17:31,309 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 03:17:31,309 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 03:17:31,309 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 03:17:31,310 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 03:17:31,310 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 03:17:31,310 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 03:17:31,310 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 03:17:31,311 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptAutoResponder_spec__1 [2019-10-15 03:17:31,311 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptAutoResponder_spec__2 [2019-10-15 03:17:31,311 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 03:17:31,311 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 03:17:31,311 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 03:17:31,311 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 03:17:31,312 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 03:17:31,312 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 03:17:31,312 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 03:17:31,312 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 03:17:31,312 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 03:17:31,313 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 03:17:31,313 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 03:17:31,313 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 03:17:31,313 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 03:17:31,313 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 03:17:31,314 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 03:17:31,314 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:17:31,314 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 03:17:31,314 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 03:17:31,314 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 03:17:31,315 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 03:17:31,315 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 03:17:31,315 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 03:17:31,315 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 03:17:31,316 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 03:17:31,316 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 03:17:31,316 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-15 03:17:31,316 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-15 03:17:31,316 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 03:17:31,316 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 03:17:31,316 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-15 03:17:31,317 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-15 03:17:31,317 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 03:17:31,317 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 03:17:31,318 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-15 03:17:31,318 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-15 03:17:31,318 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-15 03:17:31,319 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 03:17:31,319 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 03:17:31,319 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 03:17:31,319 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 03:17:31,319 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 03:17:31,320 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 03:17:31,320 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 03:17:31,320 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 03:17:31,321 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 03:17:31,321 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-15 03:17:31,321 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-15 03:17:31,322 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-15 03:17:31,322 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-15 03:17:31,322 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 03:17:31,322 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 03:17:31,322 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 03:17:31,322 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 03:17:31,322 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 03:17:31,323 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 03:17:31,323 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 03:17:31,323 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 03:17:31,323 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 03:17:31,323 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 03:17:31,323 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 03:17:31,323 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 03:17:31,324 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 03:17:31,324 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 03:17:31,324 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 03:17:31,324 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 03:17:31,324 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 03:17:31,324 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 03:17:31,325 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 03:17:31,325 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 03:17:31,325 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 03:17:31,325 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 03:17:31,325 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 03:17:31,325 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-15 03:17:31,325 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-15 03:17:31,326 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 03:17:31,326 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 03:17:31,326 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 03:17:31,326 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 03:17:31,327 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 03:17:31,327 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:17:31,327 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:17:31,328 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 03:17:31,328 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 03:17:31,328 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 03:17:31,329 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 03:17:31,329 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 03:17:31,329 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 03:17:31,329 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 03:17:31,329 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 03:17:31,330 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 03:17:31,330 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 03:17:31,331 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 03:17:31,331 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 03:17:31,332 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 03:17:31,335 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 03:17:31,335 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 03:17:31,335 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 03:17:31,335 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 03:17:31,336 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 03:17:31,336 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 03:17:31,337 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 03:17:31,337 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 03:17:31,337 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 03:17:31,338 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 03:17:31,345 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 03:17:31,346 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 03:17:31,346 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 03:17:31,346 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 03:17:31,346 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 03:17:31,346 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 03:17:31,347 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 03:17:31,347 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 03:17:31,347 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 03:17:31,347 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 03:17:31,347 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 03:17:31,347 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 03:17:31,347 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 03:17:31,348 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 03:17:31,348 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 03:17:31,348 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 03:17:31,348 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptAutoResponder_spec__1 [2019-10-15 03:17:31,348 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptAutoResponder_spec__2 [2019-10-15 03:17:31,348 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 03:17:31,349 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 03:17:31,349 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 03:17:31,349 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 03:17:31,349 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 03:17:31,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 03:17:31,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 03:17:31,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 03:17:31,350 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 03:17:31,350 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 03:17:31,350 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 03:17:31,350 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 03:17:31,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 03:17:31,351 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 03:17:31,351 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 03:17:31,351 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 03:17:31,351 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 03:17:31,351 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 03:17:31,351 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 03:17:31,351 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 03:17:31,352 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 03:17:31,352 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 03:17:31,352 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 03:17:31,352 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 03:17:31,352 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 03:17:31,353 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 03:17:31,353 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 03:17:31,353 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 03:17:31,353 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 03:17:31,354 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:17:31,354 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 03:17:31,354 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 03:17:31,354 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 03:17:31,354 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 03:17:31,354 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 03:17:31,354 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 03:17:31,355 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 03:17:31,355 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 03:17:31,355 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 03:17:31,355 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-15 03:17:31,355 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-15 03:17:31,355 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 03:17:31,356 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 03:17:31,356 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 03:17:31,356 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 03:17:31,356 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 03:17:31,356 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 03:17:31,356 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 03:17:31,356 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 03:17:31,357 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 03:17:31,357 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 03:17:31,357 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 03:17:31,357 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 03:17:31,357 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 03:17:31,357 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 03:17:31,357 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 03:17:31,358 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 03:17:31,358 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 03:17:31,358 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 03:17:31,358 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 03:17:31,358 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 03:17:31,358 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 03:17:31,359 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 03:17:31,359 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 03:17:31,359 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 03:17:31,359 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-15 03:17:31,359 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-15 03:17:31,359 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-15 03:17:31,360 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-15 03:17:31,360 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 03:17:31,360 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-15 03:17:31,360 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-15 03:17:31,360 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-15 03:17:31,360 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-15 03:17:31,361 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-15 03:17:31,361 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 03:17:31,361 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 03:17:31,361 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 03:17:31,361 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 03:17:31,361 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 03:17:31,362 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 03:17:31,362 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 03:17:31,362 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 03:17:31,362 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 03:17:31,362 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 03:17:31,362 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-15 03:17:31,362 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-15 03:17:31,363 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 03:17:31,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:17:31,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 03:17:31,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:17:35,597 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:17:35,597 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 03:17:35,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:17:35 BoogieIcfgContainer [2019-10-15 03:17:35,599 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:17:35,600 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:17:35,600 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:17:35,603 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:17:35,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:17:29" (1/3) ... [2019-10-15 03:17:35,604 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40fa4279 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:17:35, skipping insertion in model container [2019-10-15 03:17:35,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:30" (2/3) ... [2019-10-15 03:17:35,605 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40fa4279 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:17:35, skipping insertion in model container [2019-10-15 03:17:35,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:17:35" (3/3) ... [2019-10-15 03:17:35,607 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec8_product34.cil.c [2019-10-15 03:17:35,616 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:17:35,624 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:17:35,636 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:17:35,664 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:17:35,664 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:17:35,664 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:17:35,665 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:17:35,665 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:17:35,665 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:17:35,665 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:17:35,665 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:17:35,693 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states. [2019-10-15 03:17:35,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2019-10-15 03:17:35,708 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:17:35,710 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:17:35,712 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:17:35,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:17:35,717 INFO L82 PathProgramCache]: Analyzing trace with hash -75206764, now seen corresponding path program 1 times [2019-10-15 03:17:35,726 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:17:35,727 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836268504] [2019-10-15 03:17:35,727 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:35,727 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:35,728 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:17:36,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:17:36,348 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-15 03:17:36,349 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836268504] [2019-10-15 03:17:36,350 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:17:36,350 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 03:17:36,351 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775272162] [2019-10-15 03:17:36,356 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 03:17:36,356 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:17:36,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 03:17:36,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:17:36,372 INFO L87 Difference]: Start difference. First operand 458 states. Second operand 2 states. [2019-10-15 03:17:36,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:17:36,470 INFO L93 Difference]: Finished difference Result 698 states and 832 transitions. [2019-10-15 03:17:36,470 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 03:17:36,473 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 132 [2019-10-15 03:17:36,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:17:36,510 INFO L225 Difference]: With dead ends: 698 [2019-10-15 03:17:36,510 INFO L226 Difference]: Without dead ends: 431 [2019-10-15 03:17:36,522 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 03:17:36,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2019-10-15 03:17:36,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 431. [2019-10-15 03:17:36,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 431 states. [2019-10-15 03:17:36,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 510 transitions. [2019-10-15 03:17:36,637 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 510 transitions. Word has length 132 [2019-10-15 03:17:36,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:17:36,639 INFO L462 AbstractCegarLoop]: Abstraction has 431 states and 510 transitions. [2019-10-15 03:17:36,639 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 03:17:36,639 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 510 transitions. [2019-10-15 03:17:36,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2019-10-15 03:17:36,645 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:17:36,645 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:17:36,645 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:17:36,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:17:36,646 INFO L82 PathProgramCache]: Analyzing trace with hash -2135594899, now seen corresponding path program 1 times [2019-10-15 03:17:36,646 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:17:36,648 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973244334] [2019-10-15 03:17:36,648 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:36,648 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:36,648 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:17:36,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:17:36,899 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-15 03:17:36,900 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973244334] [2019-10-15 03:17:36,900 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:17:36,900 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:17:36,901 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444718432] [2019-10-15 03:17:36,903 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:17:36,903 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:17:36,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:17:36,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:17:36,904 INFO L87 Difference]: Start difference. First operand 431 states and 510 transitions. Second operand 3 states. [2019-10-15 03:17:36,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:17:36,955 INFO L93 Difference]: Finished difference Result 683 states and 800 transitions. [2019-10-15 03:17:36,955 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:17:36,956 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 133 [2019-10-15 03:17:36,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:17:36,960 INFO L225 Difference]: With dead ends: 683 [2019-10-15 03:17:36,960 INFO L226 Difference]: Without dead ends: 433 [2019-10-15 03:17:36,962 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 03:17:36,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2019-10-15 03:17:36,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 433. [2019-10-15 03:17:36,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 433 states. [2019-10-15 03:17:36,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 512 transitions. [2019-10-15 03:17:36,999 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 512 transitions. Word has length 133 [2019-10-15 03:17:36,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:17:36,999 INFO L462 AbstractCegarLoop]: Abstraction has 433 states and 512 transitions. [2019-10-15 03:17:36,999 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:17:37,000 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 512 transitions. [2019-10-15 03:17:37,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2019-10-15 03:17:37,003 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:17:37,003 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:17:37,003 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:17:37,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:17:37,004 INFO L82 PathProgramCache]: Analyzing trace with hash -128607397, now seen corresponding path program 1 times [2019-10-15 03:17:37,004 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:17:37,004 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405298780] [2019-10-15 03:17:37,004 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:37,005 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:37,005 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:17:37,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:17:37,255 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-15 03:17:37,256 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405298780] [2019-10-15 03:17:37,256 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:17:37,256 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:17:37,256 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789864697] [2019-10-15 03:17:37,260 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:17:37,260 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:17:37,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:17:37,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:17:37,261 INFO L87 Difference]: Start difference. First operand 433 states and 512 transitions. Second operand 3 states. [2019-10-15 03:17:37,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:17:37,329 INFO L93 Difference]: Finished difference Result 850 states and 1034 transitions. [2019-10-15 03:17:37,329 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:17:37,330 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 138 [2019-10-15 03:17:37,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:17:37,336 INFO L225 Difference]: With dead ends: 850 [2019-10-15 03:17:37,336 INFO L226 Difference]: Without dead ends: 475 [2019-10-15 03:17:37,338 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 03:17:37,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2019-10-15 03:17:37,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 474. [2019-10-15 03:17:37,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 474 states. [2019-10-15 03:17:37,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 583 transitions. [2019-10-15 03:17:37,395 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 583 transitions. Word has length 138 [2019-10-15 03:17:37,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:17:37,396 INFO L462 AbstractCegarLoop]: Abstraction has 474 states and 583 transitions. [2019-10-15 03:17:37,396 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:17:37,396 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 583 transitions. [2019-10-15 03:17:37,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2019-10-15 03:17:37,406 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:17:37,407 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:17:37,407 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:17:37,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:17:37,409 INFO L82 PathProgramCache]: Analyzing trace with hash -516144309, now seen corresponding path program 1 times [2019-10-15 03:17:37,409 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:17:37,409 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604705895] [2019-10-15 03:17:37,410 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:37,410 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:37,410 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:17:37,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:17:37,718 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-15 03:17:37,719 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604705895] [2019-10-15 03:17:37,719 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:17:37,719 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:17:37,719 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372616154] [2019-10-15 03:17:37,722 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:17:37,722 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:17:37,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:17:37,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:17:37,723 INFO L87 Difference]: Start difference. First operand 474 states and 583 transitions. Second operand 3 states. [2019-10-15 03:17:37,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:17:37,781 INFO L93 Difference]: Finished difference Result 793 states and 957 transitions. [2019-10-15 03:17:37,783 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:17:37,783 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 139 [2019-10-15 03:17:37,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:17:37,790 INFO L225 Difference]: With dead ends: 793 [2019-10-15 03:17:37,790 INFO L226 Difference]: Without dead ends: 555 [2019-10-15 03:17:37,791 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:17:37,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2019-10-15 03:17:37,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 554. [2019-10-15 03:17:37,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 554 states. [2019-10-15 03:17:37,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 674 transitions. [2019-10-15 03:17:37,824 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 674 transitions. Word has length 139 [2019-10-15 03:17:37,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:17:37,825 INFO L462 AbstractCegarLoop]: Abstraction has 554 states and 674 transitions. [2019-10-15 03:17:37,825 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:17:37,825 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 674 transitions. [2019-10-15 03:17:37,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2019-10-15 03:17:37,831 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:17:37,831 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:17:37,832 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:17:37,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:17:37,832 INFO L82 PathProgramCache]: Analyzing trace with hash -22217736, now seen corresponding path program 1 times [2019-10-15 03:17:37,832 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:17:37,833 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143127577] [2019-10-15 03:17:37,833 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:37,833 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:37,833 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:17:37,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:17:38,377 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-15 03:17:38,378 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143127577] [2019-10-15 03:17:38,378 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:17:38,378 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2019-10-15 03:17:38,379 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637404836] [2019-10-15 03:17:38,380 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-15 03:17:38,381 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:17:38,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-15 03:17:38,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2019-10-15 03:17:38,382 INFO L87 Difference]: Start difference. First operand 554 states and 674 transitions. Second operand 14 states. [2019-10-15 03:17:42,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:17:42,172 INFO L93 Difference]: Finished difference Result 1324 states and 1599 transitions. [2019-10-15 03:17:42,173 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-15 03:17:42,173 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 250 [2019-10-15 03:17:42,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:17:42,180 INFO L225 Difference]: With dead ends: 1324 [2019-10-15 03:17:42,180 INFO L226 Difference]: Without dead ends: 1028 [2019-10-15 03:17:42,182 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=119, Invalid=531, Unknown=0, NotChecked=0, Total=650 [2019-10-15 03:17:42,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1028 states. [2019-10-15 03:17:42,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1028 to 1019. [2019-10-15 03:17:42,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1019 states. [2019-10-15 03:17:42,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1019 states to 1019 states and 1248 transitions. [2019-10-15 03:17:42,238 INFO L78 Accepts]: Start accepts. Automaton has 1019 states and 1248 transitions. Word has length 250 [2019-10-15 03:17:42,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:17:42,239 INFO L462 AbstractCegarLoop]: Abstraction has 1019 states and 1248 transitions. [2019-10-15 03:17:42,239 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-15 03:17:42,239 INFO L276 IsEmpty]: Start isEmpty. Operand 1019 states and 1248 transitions. [2019-10-15 03:17:42,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2019-10-15 03:17:42,245 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:17:42,246 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:17:42,246 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:17:42,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:17:42,247 INFO L82 PathProgramCache]: Analyzing trace with hash -954850071, now seen corresponding path program 1 times [2019-10-15 03:17:42,247 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:17:42,247 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947645295] [2019-10-15 03:17:42,247 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:42,247 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:42,248 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:17:42,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:17:42,521 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-15 03:17:42,521 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947645295] [2019-10-15 03:17:42,522 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:17:42,522 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:17:42,523 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017856140] [2019-10-15 03:17:42,523 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:17:42,523 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:17:42,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:17:42,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:17:42,524 INFO L87 Difference]: Start difference. First operand 1019 states and 1248 transitions. Second operand 3 states. [2019-10-15 03:17:42,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:17:42,580 INFO L93 Difference]: Finished difference Result 2144 states and 2717 transitions. [2019-10-15 03:17:42,580 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:17:42,580 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 272 [2019-10-15 03:17:42,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:17:42,587 INFO L225 Difference]: With dead ends: 2144 [2019-10-15 03:17:42,587 INFO L226 Difference]: Without dead ends: 1183 [2019-10-15 03:17:42,590 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 03:17:42,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1183 states. [2019-10-15 03:17:42,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1183 to 1181. [2019-10-15 03:17:42,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1181 states. [2019-10-15 03:17:42,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1181 states to 1181 states and 1526 transitions. [2019-10-15 03:17:42,646 INFO L78 Accepts]: Start accepts. Automaton has 1181 states and 1526 transitions. Word has length 272 [2019-10-15 03:17:42,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:17:42,647 INFO L462 AbstractCegarLoop]: Abstraction has 1181 states and 1526 transitions. [2019-10-15 03:17:42,647 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:17:42,647 INFO L276 IsEmpty]: Start isEmpty. Operand 1181 states and 1526 transitions. [2019-10-15 03:17:42,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2019-10-15 03:17:42,654 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:17:42,654 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:17:42,655 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:17:42,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:17:42,655 INFO L82 PathProgramCache]: Analyzing trace with hash -1511500981, now seen corresponding path program 1 times [2019-10-15 03:17:42,655 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:17:42,655 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334591451] [2019-10-15 03:17:42,656 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:42,656 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:42,656 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:17:42,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:17:42,924 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2019-10-15 03:17:42,924 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334591451] [2019-10-15 03:17:42,925 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:17:42,925 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:17:42,925 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155342433] [2019-10-15 03:17:42,926 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:17:42,926 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:17:42,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:17:42,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:17:42,927 INFO L87 Difference]: Start difference. First operand 1181 states and 1526 transitions. Second operand 3 states. [2019-10-15 03:17:43,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:17:43,009 INFO L93 Difference]: Finished difference Result 2610 states and 3519 transitions. [2019-10-15 03:17:43,009 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:17:43,010 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 278 [2019-10-15 03:17:43,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:17:43,018 INFO L225 Difference]: With dead ends: 2610 [2019-10-15 03:17:43,018 INFO L226 Difference]: Without dead ends: 1487 [2019-10-15 03:17:43,022 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 03:17:43,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1487 states. [2019-10-15 03:17:43,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1487 to 1485. [2019-10-15 03:17:43,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1485 states. [2019-10-15 03:17:43,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1485 states to 1485 states and 2046 transitions. [2019-10-15 03:17:43,090 INFO L78 Accepts]: Start accepts. Automaton has 1485 states and 2046 transitions. Word has length 278 [2019-10-15 03:17:43,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:17:43,090 INFO L462 AbstractCegarLoop]: Abstraction has 1485 states and 2046 transitions. [2019-10-15 03:17:43,091 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:17:43,091 INFO L276 IsEmpty]: Start isEmpty. Operand 1485 states and 2046 transitions. [2019-10-15 03:17:43,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2019-10-15 03:17:43,100 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:17:43,100 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:17:43,100 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:17:43,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:17:43,101 INFO L82 PathProgramCache]: Analyzing trace with hash 999705909, now seen corresponding path program 1 times [2019-10-15 03:17:43,101 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:17:43,101 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526979641] [2019-10-15 03:17:43,101 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:43,102 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:43,102 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:17:43,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:17:43,312 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2019-10-15 03:17:43,312 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526979641] [2019-10-15 03:17:43,312 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:17:43,313 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:17:43,313 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871164553] [2019-10-15 03:17:43,313 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:17:43,314 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:17:43,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:17:43,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:17:43,314 INFO L87 Difference]: Start difference. First operand 1485 states and 2046 transitions. Second operand 3 states. [2019-10-15 03:17:43,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:17:43,404 INFO L93 Difference]: Finished difference Result 3498 states and 5039 transitions. [2019-10-15 03:17:43,404 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:17:43,404 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 279 [2019-10-15 03:17:43,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:17:43,416 INFO L225 Difference]: With dead ends: 3498 [2019-10-15 03:17:43,416 INFO L226 Difference]: Without dead ends: 2071 [2019-10-15 03:17:43,421 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 03:17:43,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2071 states. [2019-10-15 03:17:43,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2071 to 2069. [2019-10-15 03:17:43,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2069 states. [2019-10-15 03:17:43,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2069 states to 2069 states and 3038 transitions. [2019-10-15 03:17:43,520 INFO L78 Accepts]: Start accepts. Automaton has 2069 states and 3038 transitions. Word has length 279 [2019-10-15 03:17:43,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:17:43,520 INFO L462 AbstractCegarLoop]: Abstraction has 2069 states and 3038 transitions. [2019-10-15 03:17:43,520 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:17:43,520 INFO L276 IsEmpty]: Start isEmpty. Operand 2069 states and 3038 transitions. [2019-10-15 03:17:43,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2019-10-15 03:17:43,532 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:17:43,533 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:17:43,533 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:17:43,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:17:43,533 INFO L82 PathProgramCache]: Analyzing trace with hash -1442152917, now seen corresponding path program 1 times [2019-10-15 03:17:43,534 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:17:43,534 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601782479] [2019-10-15 03:17:43,534 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:43,534 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:43,535 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:17:43,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:17:43,906 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2019-10-15 03:17:43,907 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601782479] [2019-10-15 03:17:43,907 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:17:43,907 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:17:43,908 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934362086] [2019-10-15 03:17:43,908 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:17:43,909 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:17:43,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:17:43,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:17:43,910 INFO L87 Difference]: Start difference. First operand 2069 states and 3038 transitions. Second operand 3 states. [2019-10-15 03:17:44,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:17:44,077 INFO L93 Difference]: Finished difference Result 5202 states and 7935 transitions. [2019-10-15 03:17:44,077 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:17:44,077 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 280 [2019-10-15 03:17:44,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:17:44,103 INFO L225 Difference]: With dead ends: 5202 [2019-10-15 03:17:44,103 INFO L226 Difference]: Without dead ends: 3191 [2019-10-15 03:17:44,111 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 03:17:44,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3191 states. [2019-10-15 03:17:44,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3191 to 3189. [2019-10-15 03:17:44,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3189 states. [2019-10-15 03:17:44,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3189 states to 3189 states and 4926 transitions. [2019-10-15 03:17:44,276 INFO L78 Accepts]: Start accepts. Automaton has 3189 states and 4926 transitions. Word has length 280 [2019-10-15 03:17:44,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:17:44,276 INFO L462 AbstractCegarLoop]: Abstraction has 3189 states and 4926 transitions. [2019-10-15 03:17:44,276 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:17:44,276 INFO L276 IsEmpty]: Start isEmpty. Operand 3189 states and 4926 transitions. [2019-10-15 03:17:44,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2019-10-15 03:17:44,294 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:17:44,294 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:17:44,294 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:17:44,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:17:44,295 INFO L82 PathProgramCache]: Analyzing trace with hash -757773739, now seen corresponding path program 1 times [2019-10-15 03:17:44,295 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:17:44,295 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977523313] [2019-10-15 03:17:44,296 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:44,296 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:44,296 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:17:44,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:17:44,570 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2019-10-15 03:17:44,570 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977523313] [2019-10-15 03:17:44,571 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:17:44,571 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:17:44,571 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026125664] [2019-10-15 03:17:44,572 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:17:44,572 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:17:44,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:17:44,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:17:44,574 INFO L87 Difference]: Start difference. First operand 3189 states and 4926 transitions. Second operand 3 states. [2019-10-15 03:17:44,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:17:44,768 INFO L93 Difference]: Finished difference Result 8466 states and 13439 transitions. [2019-10-15 03:17:44,768 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:17:44,768 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 281 [2019-10-15 03:17:44,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:17:44,801 INFO L225 Difference]: With dead ends: 8466 [2019-10-15 03:17:44,802 INFO L226 Difference]: Without dead ends: 5335 [2019-10-15 03:17:44,819 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 03:17:44,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5335 states. [2019-10-15 03:17:45,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5335 to 5333. [2019-10-15 03:17:45,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5333 states. [2019-10-15 03:17:45,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5333 states to 5333 states and 8510 transitions. [2019-10-15 03:17:45,088 INFO L78 Accepts]: Start accepts. Automaton has 5333 states and 8510 transitions. Word has length 281 [2019-10-15 03:17:45,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:17:45,089 INFO L462 AbstractCegarLoop]: Abstraction has 5333 states and 8510 transitions. [2019-10-15 03:17:45,089 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:17:45,089 INFO L276 IsEmpty]: Start isEmpty. Operand 5333 states and 8510 transitions. [2019-10-15 03:17:45,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2019-10-15 03:17:45,117 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:17:45,118 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:17:45,118 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:17:45,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:17:45,118 INFO L82 PathProgramCache]: Analyzing trace with hash -506307271, now seen corresponding path program 1 times [2019-10-15 03:17:45,119 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:17:45,119 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307073278] [2019-10-15 03:17:45,119 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:45,119 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:45,119 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:17:45,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:17:45,291 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-15 03:17:45,292 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307073278] [2019-10-15 03:17:45,292 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:17:45,292 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:17:45,292 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410602648] [2019-10-15 03:17:45,293 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:17:45,293 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:17:45,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:17:45,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:17:45,294 INFO L87 Difference]: Start difference. First operand 5333 states and 8510 transitions. Second operand 3 states. [2019-10-15 03:17:45,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:17:45,689 INFO L93 Difference]: Finished difference Result 14706 states and 23871 transitions. [2019-10-15 03:17:45,690 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:17:45,690 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 277 [2019-10-15 03:17:45,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:17:45,765 INFO L225 Difference]: With dead ends: 14706 [2019-10-15 03:17:45,765 INFO L226 Difference]: Without dead ends: 9431 [2019-10-15 03:17:45,784 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 03:17:45,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9431 states. [2019-10-15 03:17:46,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9431 to 9429. [2019-10-15 03:17:46,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9429 states. [2019-10-15 03:17:46,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9429 states to 9429 states and 15294 transitions. [2019-10-15 03:17:46,272 INFO L78 Accepts]: Start accepts. Automaton has 9429 states and 15294 transitions. Word has length 277 [2019-10-15 03:17:46,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:17:46,272 INFO L462 AbstractCegarLoop]: Abstraction has 9429 states and 15294 transitions. [2019-10-15 03:17:46,272 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:17:46,273 INFO L276 IsEmpty]: Start isEmpty. Operand 9429 states and 15294 transitions. [2019-10-15 03:17:46,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2019-10-15 03:17:46,324 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:17:46,325 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:17:46,325 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:17:46,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:17:46,325 INFO L82 PathProgramCache]: Analyzing trace with hash 822351733, now seen corresponding path program 1 times [2019-10-15 03:17:46,326 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:17:46,326 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317670984] [2019-10-15 03:17:46,326 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:46,326 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:46,326 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:17:46,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:17:47,164 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2019-10-15 03:17:47,164 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317670984] [2019-10-15 03:17:47,164 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1054963452] [2019-10-15 03:17:47,165 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:17:47,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:17:47,854 INFO L256 TraceCheckSpWp]: Trace formula consists of 3878 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-15 03:17:47,883 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:17:48,106 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2019-10-15 03:17:48,106 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:17:48,720 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-15 03:17:48,721 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [239077246] [2019-10-15 03:17:48,757 INFO L162 IcfgInterpreter]: Started Sifa with 225 locations of interest [2019-10-15 03:17:48,757 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 03:17:48,764 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 03:17:48,771 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 03:17:48,771 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs