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_spec27_product19.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:08:28,723 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:08:28,726 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:08:28,744 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:08:28,745 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:08:28,747 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:08:28,749 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:08:28,759 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:08:28,765 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:08:28,768 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:08:28,769 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:08:28,771 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:08:28,771 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:08:28,773 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:08:28,776 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:08:28,777 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:08:28,779 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:08:28,780 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:08:28,781 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:08:28,786 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:08:28,791 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:08:28,794 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:08:28,798 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:08:28,799 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:08:28,801 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:08:28,801 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:08:28,802 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:08:28,804 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:08:28,805 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:08:28,807 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:08:28,807 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:08:28,808 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:08:28,809 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:08:28,810 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:08:28,811 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:08:28,812 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:08:28,812 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:08:28,813 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:08:28,813 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:08:28,814 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:08:28,815 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:08:28,816 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 23:08:28,851 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:08:28,851 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:08:28,855 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:08:28,856 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:08:28,856 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:08:28,856 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:08:28,856 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:08:28,857 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:08:28,857 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:08:28,857 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:08:28,857 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:08:28,857 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:08:28,858 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:08:28,858 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:08:28,858 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:08:28,858 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:08:28,858 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:08:28,859 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:08:28,859 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:08:28,859 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:08:28,859 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:08:28,859 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:08:28,860 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:08:28,860 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:08:28,860 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:08:28,861 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:08:28,861 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:08:28,861 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:08:28,861 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-13 23:08:29,166 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:08:29,187 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:08:29,191 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:08:29,193 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:08:29,194 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:08:29,194 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec27_product19.cil.c [2019-10-13 23:08:29,271 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea856fbb7/06e19583c9ec403f912445ac4234053d/FLAG42d42ba89 [2019-10-13 23:08:29,885 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:08:29,886 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec27_product19.cil.c [2019-10-13 23:08:29,915 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea856fbb7/06e19583c9ec403f912445ac4234053d/FLAG42d42ba89 [2019-10-13 23:08:30,165 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea856fbb7/06e19583c9ec403f912445ac4234053d [2019-10-13 23:08:30,176 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:08:30,178 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:08:30,179 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:08:30,179 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:08:30,182 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:08:30,183 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:08:30" (1/1) ... [2019-10-13 23:08:30,186 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@429df39f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:08:30, skipping insertion in model container [2019-10-13 23:08:30,186 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:08:30" (1/1) ... [2019-10-13 23:08:30,194 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:08:30,285 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:08:31,034 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:08:31,064 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:08:31,206 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:08:31,286 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:08:31,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:08:31 WrapperNode [2019-10-13 23:08:31,287 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:08:31,287 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:08:31,287 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:08:31,287 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:08:31,299 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:08:31" (1/1) ... [2019-10-13 23:08:31,299 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:08:31" (1/1) ... [2019-10-13 23:08:31,333 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:08:31" (1/1) ... [2019-10-13 23:08:31,334 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:08:31" (1/1) ... [2019-10-13 23:08:31,390 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:08:31" (1/1) ... [2019-10-13 23:08:31,415 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:08:31" (1/1) ... [2019-10-13 23:08:31,429 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:08:31" (1/1) ... [2019-10-13 23:08:31,465 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:08:31,466 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:08:31,466 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:08:31,469 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:08:31,472 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:08:31" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:08:31,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:08:31,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:08:31,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:08:31,565 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:08:31,565 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:08:31,566 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:08:31,566 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:08:31,566 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:08:31,566 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:08:31,566 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__VerifyForward_spec__1 [2019-10-13 23:08:31,567 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:08:31,567 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:08:31,567 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:08:31,567 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:08:31,568 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 23:08:31,568 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 23:08:31,568 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 23:08:31,568 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 23:08:31,569 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 23:08:31,569 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 23:08:31,569 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 23:08:31,569 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 23:08:31,570 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:08:31,570 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:08:31,570 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 23:08:31,570 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 23:08:31,570 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 23:08:31,571 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 23:08:31,571 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 23:08:31,571 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 23:08:31,571 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 23:08:31,571 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 23:08:31,571 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 23:08:31,572 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-13 23:08:31,572 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:08:31,572 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:08:31,572 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 23:08:31,572 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-13 23:08:31,573 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 23:08:31,573 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 23:08:31,573 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 23:08:31,573 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 23:08:31,573 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 23:08:31,573 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 23:08:31,574 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 23:08:31,574 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 23:08:31,574 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 23:08:31,574 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 23:08:31,574 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 23:08:31,574 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 23:08:31,575 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 23:08:31,575 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 23:08:31,575 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 23:08:31,575 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 23:08:31,575 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 23:08:31,576 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 23:08:31,576 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 23:08:31,576 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 23:08:31,576 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 23:08:31,577 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 23:08:31,578 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 23:08:31,578 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 23:08:31,579 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 23:08:31,579 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 23:08:31,579 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 23:08:31,579 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 23:08:31,579 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 23:08:31,579 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 23:08:31,580 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 23:08:31,580 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 23:08:31,580 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 23:08:31,581 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 23:08:31,581 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 23:08:31,582 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 23:08:31,582 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 23:08:31,582 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 23:08:31,583 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 23:08:31,583 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 23:08:31,583 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 23:08:31,583 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 23:08:31,585 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 23:08:31,585 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 23:08:31,585 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 23:08:31,585 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 23:08:31,585 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 23:08:31,586 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 23:08:31,586 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 23:08:31,587 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 23:08:31,587 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 23:08:31,587 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 23:08:31,587 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 23:08:31,587 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 23:08:31,587 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 23:08:31,587 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 23:08:31,588 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 23:08:31,588 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 23:08:31,588 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 23:08:31,588 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-13 23:08:31,588 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-13 23:08:31,588 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 23:08:31,588 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 23:08:31,589 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 23:08:31,589 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 23:08:31,589 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 23:08:31,589 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 23:08:31,589 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 23:08:31,589 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 23:08:31,589 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 23:08:31,590 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-13 23:08:31,590 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-13 23:08:31,590 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-13 23:08:31,590 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:08:31,590 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:08:31,590 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:08:31,590 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:08:31,591 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:08:31,591 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:08:31,591 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:08:31,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:08:31,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:08:31,592 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:08:31,595 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:08:31,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:08:31,596 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:08:31,597 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:08:31,597 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:08:31,597 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:08:31,598 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:08:31,598 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:08:31,598 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:08:31,598 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:08:31,598 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 23:08:31,599 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 23:08:31,599 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 23:08:31,602 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 23:08:31,602 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__VerifyForward_spec__1 [2019-10-13 23:08:31,603 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:08:31,603 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:08:31,603 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:08:31,603 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:08:31,604 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:08:31,604 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 23:08:31,604 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 23:08:31,604 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 23:08:31,609 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 23:08:31,610 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 23:08:31,610 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 23:08:31,610 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 23:08:31,611 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 23:08:31,611 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 23:08:31,611 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 23:08:31,611 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 23:08:31,612 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 23:08:31,612 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 23:08:31,612 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 23:08:31,612 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 23:08:31,612 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 23:08:31,612 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 23:08:31,612 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 23:08:31,613 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 23:08:31,613 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:08:31,613 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:08:31,613 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:08:31,613 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 23:08:31,613 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 23:08:31,613 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 23:08:31,614 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 23:08:31,614 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 23:08:31,614 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 23:08:31,614 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 23:08:31,614 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 23:08:31,614 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 23:08:31,614 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-13 23:08:31,614 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 23:08:31,615 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 23:08:31,615 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 23:08:31,615 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 23:08:31,615 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 23:08:31,615 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 23:08:31,615 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 23:08:31,615 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 23:08:31,616 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 23:08:31,616 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 23:08:31,616 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 23:08:31,616 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 23:08:31,616 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 23:08:31,616 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 23:08:31,616 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-13 23:08:31,616 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 23:08:31,617 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 23:08:31,617 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 23:08:31,617 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 23:08:31,617 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 23:08:31,617 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 23:08:31,617 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 23:08:31,617 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 23:08:31,617 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 23:08:31,618 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 23:08:31,618 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 23:08:31,618 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 23:08:31,618 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 23:08:31,618 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 23:08:31,618 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 23:08:31,618 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 23:08:31,618 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 23:08:31,619 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 23:08:31,619 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 23:08:31,619 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 23:08:31,620 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 23:08:31,620 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 23:08:31,621 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 23:08:31,621 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 23:08:31,621 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 23:08:31,621 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 23:08:31,621 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 23:08:31,621 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 23:08:31,621 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 23:08:31,622 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 23:08:31,622 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 23:08:31,622 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 23:08:31,622 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 23:08:31,622 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 23:08:31,622 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 23:08:31,622 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 23:08:31,622 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 23:08:31,623 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 23:08:31,623 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 23:08:31,623 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 23:08:31,623 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-13 23:08:31,623 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-13 23:08:31,623 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-13 23:08:31,623 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 23:08:31,623 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-13 23:08:31,624 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-13 23:08:31,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:08:31,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:08:31,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:08:35,936 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:08:35,936 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 23:08:35,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:08:35 BoogieIcfgContainer [2019-10-13 23:08:35,938 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:08:35,939 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:08:35,939 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:08:35,942 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:08:35,943 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:08:30" (1/3) ... [2019-10-13 23:08:35,943 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@331eb958 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:08:35, skipping insertion in model container [2019-10-13 23:08:35,944 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:08:31" (2/3) ... [2019-10-13 23:08:35,944 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@331eb958 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:08:35, skipping insertion in model container [2019-10-13 23:08:35,944 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:08:35" (3/3) ... [2019-10-13 23:08:35,946 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec27_product19.cil.c [2019-10-13 23:08:35,956 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:08:35,968 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:08:35,979 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:08:36,022 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:08:36,022 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:08:36,022 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:08:36,022 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:08:36,022 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:08:36,023 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:08:36,023 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:08:36,023 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:08:36,057 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states. [2019-10-13 23:08:36,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2019-10-13 23:08:36,081 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:08:36,083 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:08:36,084 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:08:36,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:08:36,090 INFO L82 PathProgramCache]: Analyzing trace with hash 1868884875, now seen corresponding path program 1 times [2019-10-13 23:08:36,098 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:08:36,098 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486181002] [2019-10-13 23:08:36,099 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:36,099 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:36,099 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:08:36,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:08:36,811 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:08:36,812 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486181002] [2019-10-13 23:08:36,813 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:08:36,813 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:08:36,814 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444086977] [2019-10-13 23:08:36,822 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:08:36,823 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:08:36,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:08:36,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:08:36,840 INFO L87 Difference]: Start difference. First operand 361 states. Second operand 2 states. [2019-10-13 23:08:36,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:08:36,910 INFO L93 Difference]: Finished difference Result 530 states and 623 transitions. [2019-10-13 23:08:36,911 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:08:36,912 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 143 [2019-10-13 23:08:36,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:08:36,931 INFO L225 Difference]: With dead ends: 530 [2019-10-13 23:08:36,931 INFO L226 Difference]: Without dead ends: 340 [2019-10-13 23:08:36,942 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:08:36,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2019-10-13 23:08:37,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 340. [2019-10-13 23:08:37,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2019-10-13 23:08:37,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 398 transitions. [2019-10-13 23:08:37,053 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 398 transitions. Word has length 143 [2019-10-13 23:08:37,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:08:37,062 INFO L462 AbstractCegarLoop]: Abstraction has 340 states and 398 transitions. [2019-10-13 23:08:37,062 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:08:37,062 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 398 transitions. [2019-10-13 23:08:37,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2019-10-13 23:08:37,069 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:08:37,070 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:08:37,070 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:08:37,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:08:37,071 INFO L82 PathProgramCache]: Analyzing trace with hash 2087298503, now seen corresponding path program 1 times [2019-10-13 23:08:37,071 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:08:37,075 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468557178] [2019-10-13 23:08:37,076 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:37,076 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:37,076 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:08:37,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:08:37,405 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:08:37,405 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468557178] [2019-10-13 23:08:37,406 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:08:37,406 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:08:37,406 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399445369] [2019-10-13 23:08:37,410 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:08:37,411 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:08:37,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:08:37,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:08:37,412 INFO L87 Difference]: Start difference. First operand 340 states and 398 transitions. Second operand 3 states. [2019-10-13 23:08:37,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:08:37,492 INFO L93 Difference]: Finished difference Result 515 states and 591 transitions. [2019-10-13 23:08:37,493 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:08:37,493 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 144 [2019-10-13 23:08:37,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:08:37,502 INFO L225 Difference]: With dead ends: 515 [2019-10-13 23:08:37,502 INFO L226 Difference]: Without dead ends: 342 [2019-10-13 23:08:37,508 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:08:37,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2019-10-13 23:08:37,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 342. [2019-10-13 23:08:37,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 342 states. [2019-10-13 23:08:37,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 400 transitions. [2019-10-13 23:08:37,550 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 400 transitions. Word has length 144 [2019-10-13 23:08:37,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:08:37,550 INFO L462 AbstractCegarLoop]: Abstraction has 342 states and 400 transitions. [2019-10-13 23:08:37,551 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:08:37,551 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 400 transitions. [2019-10-13 23:08:37,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2019-10-13 23:08:37,554 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:08:37,555 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:08:37,555 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:08:37,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:08:37,555 INFO L82 PathProgramCache]: Analyzing trace with hash -1934840532, now seen corresponding path program 1 times [2019-10-13 23:08:37,556 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:08:37,556 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877155462] [2019-10-13 23:08:37,556 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:37,556 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:37,556 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:08:37,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:08:37,692 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:08:37,692 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877155462] [2019-10-13 23:08:37,693 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:08:37,693 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:08:37,693 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738671696] [2019-10-13 23:08:37,694 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:08:37,694 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:08:37,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:08:37,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:08:37,694 INFO L87 Difference]: Start difference. First operand 342 states and 400 transitions. Second operand 3 states. [2019-10-13 23:08:37,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:08:37,766 INFO L93 Difference]: Finished difference Result 666 states and 807 transitions. [2019-10-13 23:08:37,766 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:08:37,767 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 149 [2019-10-13 23:08:37,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:08:37,776 INFO L225 Difference]: With dead ends: 666 [2019-10-13 23:08:37,776 INFO L226 Difference]: Without dead ends: 382 [2019-10-13 23:08:37,782 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:08:37,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2019-10-13 23:08:37,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 381. [2019-10-13 23:08:37,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 381 states. [2019-10-13 23:08:37,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 468 transitions. [2019-10-13 23:08:37,821 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 468 transitions. Word has length 149 [2019-10-13 23:08:37,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:08:37,822 INFO L462 AbstractCegarLoop]: Abstraction has 381 states and 468 transitions. [2019-10-13 23:08:37,822 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:08:37,822 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 468 transitions. [2019-10-13 23:08:37,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2019-10-13 23:08:37,830 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:08:37,830 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:08:37,830 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:08:37,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:08:37,831 INFO L82 PathProgramCache]: Analyzing trace with hash -188162591, now seen corresponding path program 1 times [2019-10-13 23:08:37,831 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:08:37,831 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100077999] [2019-10-13 23:08:37,832 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:37,832 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:37,833 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:08:37,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:08:38,124 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-13 23:08:38,125 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100077999] [2019-10-13 23:08:38,125 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:08:38,125 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 23:08:38,125 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542284768] [2019-10-13 23:08:38,126 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 23:08:38,127 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:08:38,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 23:08:38,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-13 23:08:38,129 INFO L87 Difference]: Start difference. First operand 381 states and 468 transitions. Second operand 8 states. [2019-10-13 23:08:38,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:08:38,228 INFO L93 Difference]: Finished difference Result 542 states and 648 transitions. [2019-10-13 23:08:38,228 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 23:08:38,228 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 150 [2019-10-13 23:08:38,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:08:38,235 INFO L225 Difference]: With dead ends: 542 [2019-10-13 23:08:38,236 INFO L226 Difference]: Without dead ends: 381 [2019-10-13 23:08:38,237 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-13 23:08:38,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2019-10-13 23:08:38,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 381. [2019-10-13 23:08:38,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 381 states. [2019-10-13 23:08:38,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 467 transitions. [2019-10-13 23:08:38,263 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 467 transitions. Word has length 150 [2019-10-13 23:08:38,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:08:38,263 INFO L462 AbstractCegarLoop]: Abstraction has 381 states and 467 transitions. [2019-10-13 23:08:38,264 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 23:08:38,264 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 467 transitions. [2019-10-13 23:08:38,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2019-10-13 23:08:38,268 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:08:38,268 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:08:38,268 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:08:38,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:08:38,269 INFO L82 PathProgramCache]: Analyzing trace with hash 2130876534, now seen corresponding path program 1 times [2019-10-13 23:08:38,269 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:08:38,270 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457708875] [2019-10-13 23:08:38,270 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:38,271 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:38,271 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:08:38,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:08:39,009 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-13 23:08:39,010 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457708875] [2019-10-13 23:08:39,010 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:08:39,010 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2019-10-13 23:08:39,011 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653101899] [2019-10-13 23:08:39,012 INFO L442 AbstractCegarLoop]: Interpolant automaton has 27 states [2019-10-13 23:08:39,012 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:08:39,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2019-10-13 23:08:39,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=633, Unknown=0, NotChecked=0, Total=702 [2019-10-13 23:08:39,014 INFO L87 Difference]: Start difference. First operand 381 states and 467 transitions. Second operand 27 states. [2019-10-13 23:08:47,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:08:47,747 INFO L93 Difference]: Finished difference Result 763 states and 903 transitions. [2019-10-13 23:08:47,747 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2019-10-13 23:08:47,747 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 155 [2019-10-13 23:08:47,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:08:47,752 INFO L225 Difference]: With dead ends: 763 [2019-10-13 23:08:47,753 INFO L226 Difference]: Without dead ends: 571 [2019-10-13 23:08:47,755 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 413 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=255, Invalid=2607, Unknown=0, NotChecked=0, Total=2862 [2019-10-13 23:08:47,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2019-10-13 23:08:47,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 564. [2019-10-13 23:08:47,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 564 states. [2019-10-13 23:08:47,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 671 transitions. [2019-10-13 23:08:47,794 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 671 transitions. Word has length 155 [2019-10-13 23:08:47,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:08:47,795 INFO L462 AbstractCegarLoop]: Abstraction has 564 states and 671 transitions. [2019-10-13 23:08:47,795 INFO L463 AbstractCegarLoop]: Interpolant automaton has 27 states. [2019-10-13 23:08:47,795 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 671 transitions. [2019-10-13 23:08:47,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2019-10-13 23:08:47,798 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:08:47,798 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:08:47,799 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:08:47,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:08:47,799 INFO L82 PathProgramCache]: Analyzing trace with hash -1706585510, now seen corresponding path program 1 times [2019-10-13 23:08:47,799 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:08:47,800 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061306299] [2019-10-13 23:08:47,800 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:47,800 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:47,800 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:08:47,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:08:48,222 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-13 23:08:48,223 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061306299] [2019-10-13 23:08:48,224 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:08:48,224 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2019-10-13 23:08:48,224 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918951604] [2019-10-13 23:08:48,225 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2019-10-13 23:08:48,225 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:08:48,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2019-10-13 23:08:48,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2019-10-13 23:08:48,226 INFO L87 Difference]: Start difference. First operand 564 states and 671 transitions. Second operand 21 states. [2019-10-13 23:08:55,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:08:55,365 INFO L93 Difference]: Finished difference Result 1168 states and 1331 transitions. [2019-10-13 23:08:55,365 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2019-10-13 23:08:55,366 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 176 [2019-10-13 23:08:55,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:08:55,371 INFO L225 Difference]: With dead ends: 1168 [2019-10-13 23:08:55,371 INFO L226 Difference]: Without dead ends: 780 [2019-10-13 23:08:55,373 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 316 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=213, Invalid=1679, Unknown=0, NotChecked=0, Total=1892 [2019-10-13 23:08:55,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 780 states. [2019-10-13 23:08:55,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 780 to 763. [2019-10-13 23:08:55,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 763 states. [2019-10-13 23:08:55,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 763 states to 763 states and 890 transitions. [2019-10-13 23:08:55,419 INFO L78 Accepts]: Start accepts. Automaton has 763 states and 890 transitions. Word has length 176 [2019-10-13 23:08:55,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:08:55,420 INFO L462 AbstractCegarLoop]: Abstraction has 763 states and 890 transitions. [2019-10-13 23:08:55,420 INFO L463 AbstractCegarLoop]: Interpolant automaton has 21 states. [2019-10-13 23:08:55,420 INFO L276 IsEmpty]: Start isEmpty. Operand 763 states and 890 transitions. [2019-10-13 23:08:55,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2019-10-13 23:08:55,424 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:08:55,425 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:08:55,425 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:08:55,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:08:55,425 INFO L82 PathProgramCache]: Analyzing trace with hash -225793300, now seen corresponding path program 1 times [2019-10-13 23:08:55,426 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:08:55,426 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990867777] [2019-10-13 23:08:55,426 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:55,426 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:55,426 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:08:55,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:08:56,403 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-13 23:08:56,404 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990867777] [2019-10-13 23:08:56,404 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1111031903] [2019-10-13 23:08:56,404 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 [2019-10-13 23:08:57,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:08:57,068 INFO L256 TraceCheckSpWp]: Trace formula consists of 2610 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-13 23:08:57,086 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:08:57,199 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 23:08:57,200 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:08:57,489 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 23:08:57,489 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1089849679] [2019-10-13 23:08:57,521 INFO L162 IcfgInterpreter]: Started Sifa with 167 locations of interest [2019-10-13 23:08:57,522 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 23:08:57,529 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 23:08:57,537 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 23:08:57,538 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs