java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/email_spec7_product33.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:16:41,807 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:16:41,810 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:16:41,829 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:16:41,829 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:16:41,831 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:16:41,833 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:16:41,843 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:16:41,847 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:16:41,848 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:16:41,849 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:16:41,850 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:16:41,851 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:16:41,854 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:16:41,857 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:16:41,859 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:16:41,860 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:16:41,861 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:16:41,865 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:16:41,869 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:16:41,873 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:16:41,877 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:16:41,880 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:16:41,881 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:16:41,884 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 03:16:41,884 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 03:16:41,884 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 03:16:41,886 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 03:16:41,888 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 03:16:41,890 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 03:16:41,890 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:16:41,891 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:16:41,892 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:16:41,893 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:16:41,897 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:16:41,897 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:16:41,898 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:16:41,898 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:16:41,898 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:16:41,899 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:16:41,900 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:16:41,901 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 03:16:41,922 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:16:41,923 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:16:41,925 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:16:41,925 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:16:41,925 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:16:41,925 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:16:41,926 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:16:41,926 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:16:41,926 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:16:41,926 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:16:41,927 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:16:41,927 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:16:41,928 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:16:41,928 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:16:41,928 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:16:41,928 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:16:41,929 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:16:41,929 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:16:41,929 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:16:41,929 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:16:41,929 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:16:41,930 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:16:41,930 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:16:41,930 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:16:41,930 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:16:41,930 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:16:41,931 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:16:41,931 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:16:41,931 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 03:16:42,212 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:16:42,225 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:16:42,229 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:16:42,231 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:16:42,231 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:16:42,232 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec7_product33.cil.c [2019-10-15 03:16:42,294 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbf62a954/4bf4687db6dc40d69aa84c6d20090160/FLAG0b6ac07be [2019-10-15 03:16:42,991 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:16:42,994 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec7_product33.cil.c [2019-10-15 03:16:43,026 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbf62a954/4bf4687db6dc40d69aa84c6d20090160/FLAG0b6ac07be [2019-10-15 03:16:43,152 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbf62a954/4bf4687db6dc40d69aa84c6d20090160 [2019-10-15 03:16:43,165 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:16:43,167 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:16:43,168 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:16:43,169 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:16:43,172 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:16:43,173 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:16:43" (1/1) ... [2019-10-15 03:16:43,176 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b8a7236 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:16:43, skipping insertion in model container [2019-10-15 03:16:43,176 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:16:43" (1/1) ... [2019-10-15 03:16:43,183 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:16:43,259 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:16:44,096 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:16:44,123 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:16:44,220 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:16:44,324 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:16:44,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:16:44 WrapperNode [2019-10-15 03:16:44,326 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:16:44,327 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:16:44,328 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:16:44,328 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:16:44,343 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:16:44" (1/1) ... [2019-10-15 03:16:44,344 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:16:44" (1/1) ... [2019-10-15 03:16:44,383 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:16:44" (1/1) ... [2019-10-15 03:16:44,383 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:16:44" (1/1) ... [2019-10-15 03:16:44,444 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:16:44" (1/1) ... [2019-10-15 03:16:44,474 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:16:44" (1/1) ... [2019-10-15 03:16:44,488 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:16:44" (1/1) ... [2019-10-15 03:16:44,507 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:16:44,508 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:16:44,508 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:16:44,509 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:16:44,512 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:16:44" (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 03:16:44,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:16:44,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:16:44,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 03:16:44,601 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 03:16:44,601 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AutoResponder [2019-10-15 03:16:44,601 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-15 03:16:44,601 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 03:16:44,602 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 03:16:44,602 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 03:16:44,602 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 03:16:44,602 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 03:16:44,603 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 03:16:44,603 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 03:16:44,603 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 03:16:44,603 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 03:16:44,603 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 03:16:44,604 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 03:16:44,604 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptVerify_spec__1 [2019-10-15 03:16:44,604 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 03:16:44,605 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 03:16:44,605 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 03:16:44,605 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 03:16:44,606 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 03:16:44,606 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 03:16:44,606 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 03:16:44,606 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 03:16:44,606 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 03:16:44,606 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:16:44,607 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 03:16:44,607 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 03:16:44,607 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 03:16:44,607 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 03:16:44,607 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 03:16:44,607 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 03:16:44,608 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 03:16:44,608 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 03:16:44,608 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 03:16:44,608 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-15 03:16:44,608 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-15 03:16:44,608 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 03:16:44,608 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 03:16:44,609 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 03:16:44,609 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 03:16:44,609 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 03:16:44,609 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 03:16:44,609 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 03:16:44,609 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 03:16:44,610 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 03:16:44,610 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 03:16:44,610 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 03:16:44,610 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 03:16:44,610 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 03:16:44,610 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 03:16:44,610 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 03:16:44,611 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 03:16:44,611 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 03:16:44,611 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 03:16:44,611 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 03:16:44,611 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 03:16:44,612 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 03:16:44,612 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 03:16:44,612 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 03:16:44,612 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 03:16:44,612 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 03:16:44,612 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 03:16:44,613 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 03:16:44,613 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 03:16:44,613 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 03:16:44,613 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 03:16:44,613 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 03:16:44,613 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 03:16:44,613 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 03:16:44,614 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 03:16:44,614 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 03:16:44,614 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 03:16:44,614 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 03:16:44,614 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-15 03:16:44,614 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 03:16:44,615 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 03:16:44,615 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-15 03:16:44,615 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-15 03:16:44,615 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-15 03:16:44,615 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-15 03:16:44,615 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 03:16:44,616 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 03:16:44,616 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 03:16:44,616 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 03:16:44,616 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 03:16:44,616 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 03:16:44,616 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 03:16:44,617 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 03:16:44,617 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 03:16:44,617 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-15 03:16:44,617 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-15 03:16:44,617 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-15 03:16:44,617 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-15 03:16:44,617 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 03:16:44,618 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 03:16:44,618 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 03:16:44,618 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 03:16:44,618 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 03:16:44,618 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 03:16:44,618 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 03:16:44,619 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 03:16:44,619 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 03:16:44,619 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 03:16:44,619 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 03:16:44,619 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 03:16:44,619 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 03:16:44,620 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 03:16:44,620 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 03:16:44,620 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 03:16:44,620 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 03:16:44,620 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 03:16:44,620 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 03:16:44,620 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 03:16:44,621 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 03:16:44,621 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 03:16:44,621 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:16:44,621 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:16:44,621 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 03:16:44,621 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 03:16:44,622 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 03:16:44,622 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 03:16:44,622 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 03:16:44,622 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 03:16:44,622 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 03:16:44,622 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 03:16:44,622 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 03:16:44,623 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 03:16:44,623 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 03:16:44,623 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 03:16:44,623 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 03:16:44,623 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 03:16:44,624 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 03:16:44,624 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 03:16:44,624 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 03:16:44,624 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AutoResponder [2019-10-15 03:16:44,624 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-15 03:16:44,624 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 03:16:44,624 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 03:16:44,625 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 03:16:44,625 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 03:16:44,625 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 03:16:44,625 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 03:16:44,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 03:16:44,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 03:16:44,626 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 03:16:44,626 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 03:16:44,626 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 03:16:44,626 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 03:16:44,626 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 03:16:44,626 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 03:16:44,627 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 03:16:44,627 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 03:16:44,627 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 03:16:44,627 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 03:16:44,627 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptVerify_spec__1 [2019-10-15 03:16:44,627 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 03:16:44,628 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 03:16:44,628 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 03:16:44,628 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 03:16:44,628 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 03:16:44,628 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 03:16:44,629 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 03:16:44,629 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 03:16:44,629 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 03:16:44,629 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 03:16:44,629 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 03:16:44,629 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 03:16:44,630 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 03:16:44,630 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 03:16:44,630 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 03:16:44,630 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 03:16:44,630 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 03:16:44,630 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 03:16:44,631 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 03:16:44,631 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 03:16:44,631 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 03:16:44,631 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 03:16:44,631 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 03:16:44,631 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 03:16:44,632 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 03:16:44,632 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 03:16:44,632 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:16:44,632 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 03:16:44,632 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 03:16:44,632 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 03:16:44,632 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 03:16:44,633 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 03:16:44,633 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 03:16:44,633 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 03:16:44,633 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 03:16:44,633 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 03:16:44,633 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-15 03:16:44,633 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-15 03:16:44,634 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 03:16:44,634 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 03:16:44,634 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 03:16:44,634 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 03:16:44,634 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 03:16:44,634 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 03:16:44,635 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 03:16:44,635 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 03:16:44,635 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 03:16:44,635 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 03:16:44,635 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 03:16:44,636 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 03:16:44,636 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 03:16:44,636 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 03:16:44,636 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 03:16:44,636 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 03:16:44,637 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 03:16:44,637 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 03:16:44,637 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 03:16:44,637 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 03:16:44,637 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 03:16:44,637 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 03:16:44,638 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 03:16:44,638 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 03:16:44,638 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 03:16:44,638 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 03:16:44,638 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 03:16:44,639 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 03:16:44,639 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 03:16:44,639 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 03:16:44,639 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 03:16:44,639 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 03:16:44,639 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 03:16:44,640 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 03:16:44,640 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 03:16:44,640 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-15 03:16:44,640 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-15 03:16:44,640 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-15 03:16:44,640 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-15 03:16:44,641 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 03:16:44,641 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-15 03:16:44,641 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-15 03:16:44,641 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-15 03:16:44,641 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-15 03:16:44,642 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-15 03:16:44,642 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 03:16:44,642 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 03:16:44,642 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 03:16:44,642 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 03:16:44,643 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 03:16:44,643 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 03:16:44,643 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 03:16:44,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:16:44,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 03:16:44,644 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:16:49,447 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:16:49,447 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 03:16:49,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:16:49 BoogieIcfgContainer [2019-10-15 03:16:49,449 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:16:49,451 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:16:49,451 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:16:49,455 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:16:49,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:16:43" (1/3) ... [2019-10-15 03:16:49,456 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d4118b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:16:49, skipping insertion in model container [2019-10-15 03:16:49,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:16:44" (2/3) ... [2019-10-15 03:16:49,457 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d4118b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:16:49, skipping insertion in model container [2019-10-15 03:16:49,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:16:49" (3/3) ... [2019-10-15 03:16:49,466 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec7_product33.cil.c [2019-10-15 03:16:49,476 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:16:49,487 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:16:49,501 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:16:49,544 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:16:49,545 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:16:49,545 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:16:49,545 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:16:49,545 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:16:49,552 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:16:49,553 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:16:49,553 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:16:49,591 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states. [2019-10-15 03:16:49,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2019-10-15 03:16:49,624 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:16:49,626 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:16:49,631 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:16:49,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:16:49,638 INFO L82 PathProgramCache]: Analyzing trace with hash -1428529733, now seen corresponding path program 1 times [2019-10-15 03:16:49,648 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:16:49,648 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825543935] [2019-10-15 03:16:49,649 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:49,649 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:49,649 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:16:50,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:16:50,230 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 03:16:50,230 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825543935] [2019-10-15 03:16:50,232 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:16:50,232 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 03:16:50,232 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384235687] [2019-10-15 03:16:50,238 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 03:16:50,239 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:16:50,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 03:16:50,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:16:50,256 INFO L87 Difference]: Start difference. First operand 430 states. Second operand 2 states. [2019-10-15 03:16:50,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:16:50,324 INFO L93 Difference]: Finished difference Result 661 states and 784 transitions. [2019-10-15 03:16:50,324 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 03:16:50,326 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 145 [2019-10-15 03:16:50,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:16:50,348 INFO L225 Difference]: With dead ends: 661 [2019-10-15 03:16:50,348 INFO L226 Difference]: Without dead ends: 409 [2019-10-15 03:16:50,355 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:16:50,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2019-10-15 03:16:50,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 409. [2019-10-15 03:16:50,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 409 states. [2019-10-15 03:16:50,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 482 transitions. [2019-10-15 03:16:50,496 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 482 transitions. Word has length 145 [2019-10-15 03:16:50,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:16:50,499 INFO L462 AbstractCegarLoop]: Abstraction has 409 states and 482 transitions. [2019-10-15 03:16:50,499 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 03:16:50,499 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 482 transitions. [2019-10-15 03:16:50,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2019-10-15 03:16:50,507 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:16:50,507 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:16:50,508 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:16:50,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:16:50,509 INFO L82 PathProgramCache]: Analyzing trace with hash 1941277862, now seen corresponding path program 1 times [2019-10-15 03:16:50,509 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:16:50,510 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719066177] [2019-10-15 03:16:50,510 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:50,510 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:50,510 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:16:50,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:16:50,854 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 03:16:50,855 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719066177] [2019-10-15 03:16:50,855 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:16:50,856 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:16:50,856 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161721667] [2019-10-15 03:16:50,862 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:16:50,863 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:16:50,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:16:50,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:16:50,864 INFO L87 Difference]: Start difference. First operand 409 states and 482 transitions. Second operand 3 states. [2019-10-15 03:16:51,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:16:51,051 INFO L93 Difference]: Finished difference Result 646 states and 752 transitions. [2019-10-15 03:16:51,054 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:16:51,054 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 146 [2019-10-15 03:16:51,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:16:51,070 INFO L225 Difference]: With dead ends: 646 [2019-10-15 03:16:51,070 INFO L226 Difference]: Without dead ends: 411 [2019-10-15 03:16:51,076 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:16:51,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2019-10-15 03:16:51,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 411. [2019-10-15 03:16:51,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 411 states. [2019-10-15 03:16:51,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 484 transitions. [2019-10-15 03:16:51,115 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 484 transitions. Word has length 146 [2019-10-15 03:16:51,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:16:51,116 INFO L462 AbstractCegarLoop]: Abstraction has 411 states and 484 transitions. [2019-10-15 03:16:51,116 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:16:51,116 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 484 transitions. [2019-10-15 03:16:51,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2019-10-15 03:16:51,121 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:16:51,122 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] [2019-10-15 03:16:51,122 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:16:51,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:16:51,123 INFO L82 PathProgramCache]: Analyzing trace with hash -2009493726, now seen corresponding path program 1 times [2019-10-15 03:16:51,123 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:16:51,124 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232652787] [2019-10-15 03:16:51,124 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:51,124 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:51,124 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:16:51,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:16:51,412 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 03:16:51,413 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232652787] [2019-10-15 03:16:51,413 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:16:51,413 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:16:51,413 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896553434] [2019-10-15 03:16:51,415 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:16:51,415 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:16:51,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:16:51,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:16:51,416 INFO L87 Difference]: Start difference. First operand 411 states and 484 transitions. Second operand 3 states. [2019-10-15 03:16:51,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:16:51,460 INFO L93 Difference]: Finished difference Result 806 states and 978 transitions. [2019-10-15 03:16:51,461 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:16:51,461 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 158 [2019-10-15 03:16:51,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:16:51,464 INFO L225 Difference]: With dead ends: 806 [2019-10-15 03:16:51,465 INFO L226 Difference]: Without dead ends: 453 [2019-10-15 03:16:51,466 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:16:51,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2019-10-15 03:16:51,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 452. [2019-10-15 03:16:51,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 452 states. [2019-10-15 03:16:51,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 555 transitions. [2019-10-15 03:16:51,485 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 555 transitions. Word has length 158 [2019-10-15 03:16:51,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:16:51,486 INFO L462 AbstractCegarLoop]: Abstraction has 452 states and 555 transitions. [2019-10-15 03:16:51,486 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:16:51,486 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 555 transitions. [2019-10-15 03:16:51,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2019-10-15 03:16:51,489 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:16:51,490 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] [2019-10-15 03:16:51,490 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:16:51,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:16:51,490 INFO L82 PathProgramCache]: Analyzing trace with hash 1491507317, now seen corresponding path program 1 times [2019-10-15 03:16:51,491 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:16:51,491 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213831963] [2019-10-15 03:16:51,491 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:51,491 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:51,491 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:16:51,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:16:52,309 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-15 03:16:52,309 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213831963] [2019-10-15 03:16:52,309 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:16:52,310 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2019-10-15 03:16:52,310 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880591102] [2019-10-15 03:16:52,312 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2019-10-15 03:16:52,312 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:16:52,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2019-10-15 03:16:52,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2019-10-15 03:16:52,314 INFO L87 Difference]: Start difference. First operand 452 states and 555 transitions. Second operand 28 states. [2019-10-15 03:17:01,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:17:01,469 INFO L93 Difference]: Finished difference Result 978 states and 1192 transitions. [2019-10-15 03:17:01,470 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2019-10-15 03:17:01,470 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 159 [2019-10-15 03:17:01,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:17:01,477 INFO L225 Difference]: With dead ends: 978 [2019-10-15 03:17:01,477 INFO L226 Difference]: Without dead ends: 721 [2019-10-15 03:17:01,479 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=170, Invalid=1900, Unknown=0, NotChecked=0, Total=2070 [2019-10-15 03:17:01,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 721 states. [2019-10-15 03:17:01,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 721 to 709. [2019-10-15 03:17:01,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 709 states. [2019-10-15 03:17:01,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 709 states to 709 states and 861 transitions. [2019-10-15 03:17:01,537 INFO L78 Accepts]: Start accepts. Automaton has 709 states and 861 transitions. Word has length 159 [2019-10-15 03:17:01,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:17:01,539 INFO L462 AbstractCegarLoop]: Abstraction has 709 states and 861 transitions. [2019-10-15 03:17:01,539 INFO L463 AbstractCegarLoop]: Interpolant automaton has 28 states. [2019-10-15 03:17:01,539 INFO L276 IsEmpty]: Start isEmpty. Operand 709 states and 861 transitions. [2019-10-15 03:17:01,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2019-10-15 03:17:01,542 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:17:01,543 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] [2019-10-15 03:17:01,543 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:17:01,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:17:01,543 INFO L82 PathProgramCache]: Analyzing trace with hash -682911635, now seen corresponding path program 1 times [2019-10-15 03:17:01,544 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:17:01,544 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803282539] [2019-10-15 03:17:01,545 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:01,545 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:01,545 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:17:01,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:17:01,773 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-15 03:17:01,774 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803282539] [2019-10-15 03:17:01,774 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:17:01,774 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-15 03:17:01,774 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192687186] [2019-10-15 03:17:01,776 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-15 03:17:01,776 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:17:01,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-15 03:17:01,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-15 03:17:01,777 INFO L87 Difference]: Start difference. First operand 709 states and 861 transitions. Second operand 10 states. [2019-10-15 03:17:01,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:17:01,840 INFO L93 Difference]: Finished difference Result 718 states and 872 transitions. [2019-10-15 03:17:01,840 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-15 03:17:01,840 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 163 [2019-10-15 03:17:01,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:17:01,848 INFO L225 Difference]: With dead ends: 718 [2019-10-15 03:17:01,848 INFO L226 Difference]: Without dead ends: 713 [2019-10-15 03:17:01,849 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-15 03:17:01,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2019-10-15 03:17:01,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 713. [2019-10-15 03:17:01,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 713 states. [2019-10-15 03:17:01,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 713 states to 713 states and 865 transitions. [2019-10-15 03:17:01,895 INFO L78 Accepts]: Start accepts. Automaton has 713 states and 865 transitions. Word has length 163 [2019-10-15 03:17:01,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:17:01,897 INFO L462 AbstractCegarLoop]: Abstraction has 713 states and 865 transitions. [2019-10-15 03:17:01,897 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-15 03:17:01,897 INFO L276 IsEmpty]: Start isEmpty. Operand 713 states and 865 transitions. [2019-10-15 03:17:01,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2019-10-15 03:17:01,902 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:17:01,902 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] [2019-10-15 03:17:01,902 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:17:01,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:17:01,903 INFO L82 PathProgramCache]: Analyzing trace with hash -1922706522, now seen corresponding path program 1 times [2019-10-15 03:17:01,903 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:17:01,903 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49739006] [2019-10-15 03:17:01,903 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:01,903 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:01,904 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:17:01,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:17:02,374 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-15 03:17:02,377 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49739006] [2019-10-15 03:17:02,378 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:17:02,379 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2019-10-15 03:17:02,379 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328360364] [2019-10-15 03:17:02,379 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-15 03:17:02,380 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:17:02,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-15 03:17:02,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2019-10-15 03:17:02,380 INFO L87 Difference]: Start difference. First operand 713 states and 865 transitions. Second operand 14 states. [2019-10-15 03:17:05,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:17:05,575 INFO L93 Difference]: Finished difference Result 1543 states and 1848 transitions. [2019-10-15 03:17:05,578 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-15 03:17:05,578 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 165 [2019-10-15 03:17:05,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:17:05,589 INFO L225 Difference]: With dead ends: 1543 [2019-10-15 03:17:05,590 INFO L226 Difference]: Without dead ends: 1309 [2019-10-15 03:17:05,592 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 03:17:05,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1309 states. [2019-10-15 03:17:05,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1309 to 1264. [2019-10-15 03:17:05,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1264 states. [2019-10-15 03:17:05,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1264 states to 1264 states and 1518 transitions. [2019-10-15 03:17:05,680 INFO L78 Accepts]: Start accepts. Automaton has 1264 states and 1518 transitions. Word has length 165 [2019-10-15 03:17:05,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:17:05,681 INFO L462 AbstractCegarLoop]: Abstraction has 1264 states and 1518 transitions. [2019-10-15 03:17:05,681 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-15 03:17:05,681 INFO L276 IsEmpty]: Start isEmpty. Operand 1264 states and 1518 transitions. [2019-10-15 03:17:05,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2019-10-15 03:17:05,685 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:17:05,685 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] [2019-10-15 03:17:05,685 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:17:05,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:17:05,686 INFO L82 PathProgramCache]: Analyzing trace with hash 621858291, now seen corresponding path program 1 times [2019-10-15 03:17:05,686 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:17:05,686 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397764924] [2019-10-15 03:17:05,686 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:05,687 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:05,687 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:17:05,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:17:05,821 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 03:17:05,821 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397764924] [2019-10-15 03:17:05,821 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:17:05,822 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:17:05,822 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971573516] [2019-10-15 03:17:05,822 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:17:05,823 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:17:05,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:17:05,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:17:05,823 INFO L87 Difference]: Start difference. First operand 1264 states and 1518 transitions. Second operand 3 states. [2019-10-15 03:17:05,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:17:05,894 INFO L93 Difference]: Finished difference Result 2582 states and 3169 transitions. [2019-10-15 03:17:05,894 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:17:05,894 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 180 [2019-10-15 03:17:05,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:17:05,903 INFO L225 Difference]: With dead ends: 2582 [2019-10-15 03:17:05,903 INFO L226 Difference]: Without dead ends: 1376 [2019-10-15 03:17:05,906 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 03:17:05,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1376 states. [2019-10-15 03:17:06,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1376 to 1374. [2019-10-15 03:17:06,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1374 states. [2019-10-15 03:17:06,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1374 states to 1374 states and 1709 transitions. [2019-10-15 03:17:06,048 INFO L78 Accepts]: Start accepts. Automaton has 1374 states and 1709 transitions. Word has length 180 [2019-10-15 03:17:06,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:17:06,048 INFO L462 AbstractCegarLoop]: Abstraction has 1374 states and 1709 transitions. [2019-10-15 03:17:06,049 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:17:06,049 INFO L276 IsEmpty]: Start isEmpty. Operand 1374 states and 1709 transitions. [2019-10-15 03:17:06,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2019-10-15 03:17:06,054 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:17:06,054 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-15 03:17:06,054 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:17:06,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:17:06,055 INFO L82 PathProgramCache]: Analyzing trace with hash -1182325413, now seen corresponding path program 1 times [2019-10-15 03:17:06,055 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:17:06,055 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839093854] [2019-10-15 03:17:06,055 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:06,055 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:06,056 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:17:06,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:17:06,568 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-10-15 03:17:06,568 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839093854] [2019-10-15 03:17:06,568 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2018049762] [2019-10-15 03:17:06,569 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 03:17:07,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:17:07,179 INFO L256 TraceCheckSpWp]: Trace formula consists of 2835 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-15 03:17:07,198 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:17:07,315 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-15 03:17:07,316 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:17:07,683 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-15 03:17:07,684 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [317835055] [2019-10-15 03:17:07,714 INFO L162 IcfgInterpreter]: Started Sifa with 162 locations of interest [2019-10-15 03:17:07,715 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 03:17:07,722 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 03:17:07,730 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 03:17:07,731 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs