/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/product-lines/email_spec6_product29.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 00:53:27,787 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 00:53:27,790 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 00:53:27,809 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 00:53:27,809 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 00:53:27,811 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 00:53:27,813 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 00:53:27,826 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 00:53:27,829 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 00:53:27,830 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 00:53:27,832 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 00:53:27,834 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 00:53:27,834 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 00:53:27,838 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 00:53:27,840 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 00:53:27,842 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 00:53:27,844 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 00:53:27,846 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 00:53:27,847 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 00:53:27,854 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 00:53:27,859 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 00:53:27,862 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 00:53:27,863 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 00:53:27,864 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 00:53:27,869 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 00:53:27,870 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 00:53:27,870 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 00:53:27,873 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 00:53:27,873 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 00:53:27,876 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 00:53:27,876 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 00:53:27,877 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 00:53:27,878 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 00:53:27,879 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 00:53:27,880 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 00:53:27,880 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 00:53:27,881 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 00:53:27,881 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 00:53:27,881 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 00:53:27,882 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 00:53:27,883 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 00:53:27,884 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 [2019-11-07 00:53:27,904 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 00:53:27,905 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 00:53:27,906 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 00:53:27,907 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 00:53:27,907 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 00:53:27,907 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 00:53:27,907 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 00:53:27,908 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 00:53:27,908 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 00:53:27,908 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 00:53:27,909 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 00:53:27,909 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 00:53:27,909 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 00:53:27,910 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 00:53:27,910 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 00:53:27,910 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 00:53:27,911 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 00:53:27,911 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 00:53:27,911 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 00:53:27,911 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 00:53:27,911 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 00:53:27,912 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 00:53:27,912 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 00:53:27,912 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 00:53:27,912 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 00:53:27,912 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 00:53:27,912 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 00:53:27,913 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 00:53:27,913 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-11-07 00:53:28,207 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 00:53:28,221 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 00:53:28,224 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 00:53:28,225 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 00:53:28,226 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 00:53:28,227 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec6_product29.cil.c [2019-11-07 00:53:28,301 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/17baa0b22/8dad99dcd9b04c43baec4762523e22f4/FLAG970d5a7c2 [2019-11-07 00:53:28,953 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 00:53:28,955 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec6_product29.cil.c [2019-11-07 00:53:28,979 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/17baa0b22/8dad99dcd9b04c43baec4762523e22f4/FLAG970d5a7c2 [2019-11-07 00:53:29,161 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/17baa0b22/8dad99dcd9b04c43baec4762523e22f4 [2019-11-07 00:53:29,173 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 00:53:29,175 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 00:53:29,190 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 00:53:29,190 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 00:53:29,194 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 00:53:29,195 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:53:29" (1/1) ... [2019-11-07 00:53:29,198 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74348c20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:29, skipping insertion in model container [2019-11-07 00:53:29,199 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:53:29" (1/1) ... [2019-11-07 00:53:29,208 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 00:53:29,303 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 00:53:30,151 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:53:30,171 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 00:53:30,353 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:53:30,443 INFO L192 MainTranslator]: Completed translation [2019-11-07 00:53:30,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:30 WrapperNode [2019-11-07 00:53:30,444 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 00:53:30,445 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 00:53:30,445 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 00:53:30,446 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 00:53:30,461 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:30" (1/1) ... [2019-11-07 00:53:30,461 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:30" (1/1) ... [2019-11-07 00:53:30,497 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:30" (1/1) ... [2019-11-07 00:53:30,498 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:30" (1/1) ... [2019-11-07 00:53:30,593 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:30" (1/1) ... [2019-11-07 00:53:30,625 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:30" (1/1) ... [2019-11-07 00:53:30,650 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:30" (1/1) ... [2019-11-07 00:53:30,667 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 00:53:30,668 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 00:53:30,668 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 00:53:30,668 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 00:53:30,669 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:30" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 00:53:30,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 00:53:30,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 00:53:30,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-07 00:53:30,739 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-11-07 00:53:30,739 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-11-07 00:53:30,739 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-11-07 00:53:30,739 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-11-07 00:53:30,739 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-11-07 00:53:30,740 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-11-07 00:53:30,740 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-11-07 00:53:30,740 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-11-07 00:53:30,740 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-07 00:53:30,741 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 00:53:30,741 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-11-07 00:53:30,741 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-11-07 00:53:30,741 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-11-07 00:53:30,741 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-11-07 00:53:30,742 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-11-07 00:53:30,742 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-11-07 00:53:30,743 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-11-07 00:53:30,743 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-11-07 00:53:30,743 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-11-07 00:53:30,743 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-11-07 00:53:30,744 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-07 00:53:30,744 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-07 00:53:30,744 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-07 00:53:30,744 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-07 00:53:30,744 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-07 00:53:30,745 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-07 00:53:30,745 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-11-07 00:53:30,745 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-11-07 00:53:30,745 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-11-07 00:53:30,745 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-11-07 00:53:30,745 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-11-07 00:53:30,746 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-11-07 00:53:30,746 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-11-07 00:53:30,746 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-11-07 00:53:30,746 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-11-07 00:53:30,746 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-11-07 00:53:30,746 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-11-07 00:53:30,747 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-11-07 00:53:30,747 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-11-07 00:53:30,747 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-11-07 00:53:30,747 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-11-07 00:53:30,747 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-11-07 00:53:30,747 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-11-07 00:53:30,747 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-11-07 00:53:30,748 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-11-07 00:53:30,748 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-11-07 00:53:30,748 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-11-07 00:53:30,748 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-11-07 00:53:30,748 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-11-07 00:53:30,748 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-11-07 00:53:30,748 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-11-07 00:53:30,749 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-11-07 00:53:30,749 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-11-07 00:53:30,749 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-11-07 00:53:30,749 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-11-07 00:53:30,749 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-11-07 00:53:30,749 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-11-07 00:53:30,750 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-07 00:53:30,750 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-07 00:53:30,750 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-11-07 00:53:30,750 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-07 00:53:30,750 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-07 00:53:30,750 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-07 00:53:30,751 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-07 00:53:30,751 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-11-07 00:53:30,751 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-11-07 00:53:30,751 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-11-07 00:53:30,751 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-11-07 00:53:30,751 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-11-07 00:53:30,751 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-11-07 00:53:30,752 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-11-07 00:53:30,752 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-11-07 00:53:30,752 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-11-07 00:53:30,752 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-11-07 00:53:30,752 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-11-07 00:53:30,752 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-11-07 00:53:30,753 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-11-07 00:53:30,753 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-11-07 00:53:30,753 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-11-07 00:53:30,753 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-11-07 00:53:30,753 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-11-07 00:53:30,753 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-11-07 00:53:30,754 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-11-07 00:53:30,754 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-11-07 00:53:30,754 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-11-07 00:53:30,754 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-11-07 00:53:30,754 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-11-07 00:53:30,754 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-11-07 00:53:30,754 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-11-07 00:53:30,755 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-11-07 00:53:30,755 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-11-07 00:53:30,755 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-11-07 00:53:30,755 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-11-07 00:53:30,755 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-11-07 00:53:30,755 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-11-07 00:53:30,756 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-11-07 00:53:30,756 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-11-07 00:53:30,756 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-11-07 00:53:30,756 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-11-07 00:53:30,756 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-11-07 00:53:30,756 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-11-07 00:53:30,756 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-11-07 00:53:30,757 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-11-07 00:53:30,757 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-11-07 00:53:30,757 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-11-07 00:53:30,757 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-11-07 00:53:30,757 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-11-07 00:53:30,757 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-11-07 00:53:30,757 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-11-07 00:53:30,758 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-11-07 00:53:30,758 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-11-07 00:53:30,758 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-11-07 00:53:30,758 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-11-07 00:53:30,758 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 00:53:30,758 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 00:53:30,759 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-07 00:53:30,759 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-11-07 00:53:30,759 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-11-07 00:53:30,759 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-11-07 00:53:30,759 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-11-07 00:53:30,759 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-11-07 00:53:30,760 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-11-07 00:53:30,760 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-11-07 00:53:30,760 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-11-07 00:53:30,760 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-11-07 00:53:30,760 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-11-07 00:53:30,760 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-11-07 00:53:30,760 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-07 00:53:30,761 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-07 00:53:30,761 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-07 00:53:30,761 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-11-07 00:53:30,761 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-11-07 00:53:30,761 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-11-07 00:53:30,761 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-11-07 00:53:30,762 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-11-07 00:53:30,762 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-11-07 00:53:30,762 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-11-07 00:53:30,762 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-11-07 00:53:30,762 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-11-07 00:53:30,762 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-11-07 00:53:30,763 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-11-07 00:53:30,763 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-07 00:53:30,763 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-07 00:53:30,763 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 00:53:30,763 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-11-07 00:53:30,763 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-11-07 00:53:30,763 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-11-07 00:53:30,764 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-11-07 00:53:30,764 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-11-07 00:53:30,764 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-11-07 00:53:30,764 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-11-07 00:53:30,764 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-11-07 00:53:30,764 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-11-07 00:53:30,764 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-11-07 00:53:30,765 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-11-07 00:53:30,765 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-11-07 00:53:30,765 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-11-07 00:53:30,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 00:53:30,765 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-07 00:53:30,765 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 00:53:30,765 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 00:53:30,766 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-07 00:53:30,766 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 00:53:30,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 00:53:30,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 00:53:30,766 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 00:53:30,767 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-07 00:53:30,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 00:53:30,767 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-07 00:53:30,767 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-07 00:53:30,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 00:53:30,768 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-07 00:53:30,768 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-07 00:53:30,768 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-07 00:53:30,768 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-07 00:53:30,768 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-11-07 00:53:30,769 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-11-07 00:53:30,769 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-11-07 00:53:30,769 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-11-07 00:53:30,769 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-11-07 00:53:30,769 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-11-07 00:53:30,770 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-11-07 00:53:30,770 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-11-07 00:53:30,770 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-11-07 00:53:30,770 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-11-07 00:53:30,770 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-11-07 00:53:30,771 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-11-07 00:53:30,771 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-11-07 00:53:30,771 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-11-07 00:53:30,771 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-11-07 00:53:30,772 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-11-07 00:53:30,772 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-11-07 00:53:30,772 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-11-07 00:53:30,772 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-11-07 00:53:30,772 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-11-07 00:53:30,772 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-11-07 00:53:30,773 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-11-07 00:53:30,773 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-11-07 00:53:30,773 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-11-07 00:53:30,773 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-11-07 00:53:30,773 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-07 00:53:30,774 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-11-07 00:53:30,774 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-11-07 00:53:30,774 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-11-07 00:53:30,774 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-11-07 00:53:30,774 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-11-07 00:53:30,774 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-11-07 00:53:30,774 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-11-07 00:53:30,775 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-11-07 00:53:30,775 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-11-07 00:53:30,775 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-11-07 00:53:30,775 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-11-07 00:53:30,775 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-11-07 00:53:30,775 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-11-07 00:53:30,776 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-11-07 00:53:30,776 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-11-07 00:53:30,776 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-11-07 00:53:30,776 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-11-07 00:53:30,776 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-11-07 00:53:30,776 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-11-07 00:53:30,777 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-11-07 00:53:30,777 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-11-07 00:53:30,777 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-11-07 00:53:30,777 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-11-07 00:53:30,777 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-11-07 00:53:30,777 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-11-07 00:53:30,778 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-11-07 00:53:30,778 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-11-07 00:53:30,778 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-11-07 00:53:30,778 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-11-07 00:53:30,778 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-11-07 00:53:30,778 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-11-07 00:53:30,779 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-11-07 00:53:30,779 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-11-07 00:53:30,779 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-11-07 00:53:30,779 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-11-07 00:53:30,779 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-11-07 00:53:30,779 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-11-07 00:53:30,780 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-11-07 00:53:30,780 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-11-07 00:53:30,780 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-11-07 00:53:30,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 00:53:30,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 00:53:30,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 00:53:33,116 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 00:53:33,117 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-07 00:53:33,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:53:33 BoogieIcfgContainer [2019-11-07 00:53:33,119 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 00:53:33,120 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 00:53:33,120 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 00:53:33,124 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 00:53:33,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:53:29" (1/3) ... [2019-11-07 00:53:33,125 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a12ba3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:53:33, skipping insertion in model container [2019-11-07 00:53:33,125 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:30" (2/3) ... [2019-11-07 00:53:33,125 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a12ba3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:53:33, skipping insertion in model container [2019-11-07 00:53:33,126 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:53:33" (3/3) ... [2019-11-07 00:53:33,127 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec6_product29.cil.c [2019-11-07 00:53:33,138 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 00:53:33,148 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 00:53:33,162 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 00:53:33,196 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 00:53:33,197 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 00:53:33,197 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 00:53:33,197 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 00:53:33,197 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 00:53:33,197 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 00:53:33,198 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 00:53:33,198 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 00:53:33,234 INFO L276 IsEmpty]: Start isEmpty. Operand 610 states. [2019-11-07 00:53:33,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2019-11-07 00:53:33,281 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:53:33,282 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:53:33,286 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:53:33,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:53:33,293 INFO L82 PathProgramCache]: Analyzing trace with hash -704856289, now seen corresponding path program 1 times [2019-11-07 00:53:33,303 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:53:33,304 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126527277] [2019-11-07 00:53:33,304 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:53:33,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:53:34,101 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-11-07 00:53:34,102 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126527277] [2019-11-07 00:53:34,102 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:53:34,103 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 00:53:34,104 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239569632] [2019-11-07 00:53:34,111 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 00:53:34,113 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:53:34,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 00:53:34,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 00:53:34,131 INFO L87 Difference]: Start difference. First operand 610 states. Second operand 2 states. [2019-11-07 00:53:34,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:53:34,243 INFO L93 Difference]: Finished difference Result 861 states and 1174 transitions. [2019-11-07 00:53:34,243 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 00:53:34,244 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 198 [2019-11-07 00:53:34,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:53:34,284 INFO L225 Difference]: With dead ends: 861 [2019-11-07 00:53:34,284 INFO L226 Difference]: Without dead ends: 553 [2019-11-07 00:53:34,294 INFO L630 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 [2019-11-07 00:53:34,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2019-11-07 00:53:34,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2019-11-07 00:53:34,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 553 states. [2019-11-07 00:53:34,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 758 transitions. [2019-11-07 00:53:34,405 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 758 transitions. Word has length 198 [2019-11-07 00:53:34,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:53:34,407 INFO L462 AbstractCegarLoop]: Abstraction has 553 states and 758 transitions. [2019-11-07 00:53:34,407 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 00:53:34,407 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 758 transitions. [2019-11-07 00:53:34,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2019-11-07 00:53:34,413 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:53:34,413 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:53:34,414 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:53:34,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:53:34,414 INFO L82 PathProgramCache]: Analyzing trace with hash -1910809467, now seen corresponding path program 1 times [2019-11-07 00:53:34,414 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:53:34,414 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152912315] [2019-11-07 00:53:34,415 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:53:34,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:53:34,692 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-11-07 00:53:34,692 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152912315] [2019-11-07 00:53:34,692 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:53:34,693 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:53:34,693 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426300244] [2019-11-07 00:53:34,695 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:53:34,695 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:53:34,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:53:34,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:53:34,696 INFO L87 Difference]: Start difference. First operand 553 states and 758 transitions. Second operand 3 states. [2019-11-07 00:53:34,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:53:34,752 INFO L93 Difference]: Finished difference Result 844 states and 1138 transitions. [2019-11-07 00:53:34,753 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:53:34,754 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 199 [2019-11-07 00:53:34,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:53:34,759 INFO L225 Difference]: With dead ends: 844 [2019-11-07 00:53:34,760 INFO L226 Difference]: Without dead ends: 556 [2019-11-07 00:53:34,763 INFO L630 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 [2019-11-07 00:53:34,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2019-11-07 00:53:34,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 555. [2019-11-07 00:53:34,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 555 states. [2019-11-07 00:53:34,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 760 transitions. [2019-11-07 00:53:34,798 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 760 transitions. Word has length 199 [2019-11-07 00:53:34,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:53:34,799 INFO L462 AbstractCegarLoop]: Abstraction has 555 states and 760 transitions. [2019-11-07 00:53:34,799 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:53:34,799 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 760 transitions. [2019-11-07 00:53:34,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2019-11-07 00:53:34,803 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:53:34,804 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:53:34,804 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:53:34,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:53:34,804 INFO L82 PathProgramCache]: Analyzing trace with hash 1939703097, now seen corresponding path program 1 times [2019-11-07 00:53:34,805 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:53:34,805 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78389279] [2019-11-07 00:53:34,805 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:53:34,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:53:35,096 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-11-07 00:53:35,097 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78389279] [2019-11-07 00:53:35,097 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:53:35,098 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:53:35,098 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735480812] [2019-11-07 00:53:35,101 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:53:35,103 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:53:35,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:53:35,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:53:35,104 INFO L87 Difference]: Start difference. First operand 555 states and 760 transitions. Second operand 3 states. [2019-11-07 00:53:35,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:53:35,185 INFO L93 Difference]: Finished difference Result 1086 states and 1518 transitions. [2019-11-07 00:53:35,185 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:53:35,186 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 205 [2019-11-07 00:53:35,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:53:35,196 INFO L225 Difference]: With dead ends: 1086 [2019-11-07 00:53:35,196 INFO L226 Difference]: Without dead ends: 596 [2019-11-07 00:53:35,200 INFO L630 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 [2019-11-07 00:53:35,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2019-11-07 00:53:35,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 595. [2019-11-07 00:53:35,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 595 states. [2019-11-07 00:53:35,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 829 transitions. [2019-11-07 00:53:35,259 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 829 transitions. Word has length 205 [2019-11-07 00:53:35,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:53:35,261 INFO L462 AbstractCegarLoop]: Abstraction has 595 states and 829 transitions. [2019-11-07 00:53:35,262 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:53:35,262 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 829 transitions. [2019-11-07 00:53:35,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2019-11-07 00:53:35,273 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:53:35,273 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:53:35,273 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:53:35,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:53:35,275 INFO L82 PathProgramCache]: Analyzing trace with hash -1931523851, now seen corresponding path program 1 times [2019-11-07 00:53:35,275 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:53:35,275 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180672255] [2019-11-07 00:53:35,276 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:53:35,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:53:35,606 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-11-07 00:53:35,606 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180672255] [2019-11-07 00:53:35,606 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:53:35,607 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-11-07 00:53:35,607 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954475682] [2019-11-07 00:53:35,608 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-07 00:53:35,608 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:53:35,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-07 00:53:35,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2019-11-07 00:53:35,609 INFO L87 Difference]: Start difference. First operand 595 states and 829 transitions. Second operand 11 states. [2019-11-07 00:53:41,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:53:41,667 INFO L93 Difference]: Finished difference Result 3017 states and 4347 transitions. [2019-11-07 00:53:41,668 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2019-11-07 00:53:41,668 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 206 [2019-11-07 00:53:41,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:53:41,687 INFO L225 Difference]: With dead ends: 3017 [2019-11-07 00:53:41,688 INFO L226 Difference]: Without dead ends: 2742 [2019-11-07 00:53:41,691 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 281 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=209, Invalid=913, Unknown=0, NotChecked=0, Total=1122 [2019-11-07 00:53:41,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2742 states. [2019-11-07 00:53:41,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2742 to 2721. [2019-11-07 00:53:41,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2721 states. [2019-11-07 00:53:41,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2721 states to 2721 states and 3813 transitions. [2019-11-07 00:53:41,823 INFO L78 Accepts]: Start accepts. Automaton has 2721 states and 3813 transitions. Word has length 206 [2019-11-07 00:53:41,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:53:41,824 INFO L462 AbstractCegarLoop]: Abstraction has 2721 states and 3813 transitions. [2019-11-07 00:53:41,825 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-07 00:53:41,825 INFO L276 IsEmpty]: Start isEmpty. Operand 2721 states and 3813 transitions. [2019-11-07 00:53:41,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2019-11-07 00:53:41,829 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:53:41,830 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:53:41,830 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:53:41,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:53:41,830 INFO L82 PathProgramCache]: Analyzing trace with hash 1283992778, now seen corresponding path program 1 times [2019-11-07 00:53:41,830 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:53:41,831 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531970564] [2019-11-07 00:53:41,831 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:53:41,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:53:42,245 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-11-07 00:53:42,246 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531970564] [2019-11-07 00:53:42,247 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:53:42,247 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2019-11-07 00:53:42,247 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345582295] [2019-11-07 00:53:42,249 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-11-07 00:53:42,249 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:53:42,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-11-07 00:53:42,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=343, Unknown=0, NotChecked=0, Total=380 [2019-11-07 00:53:42,251 INFO L87 Difference]: Start difference. First operand 2721 states and 3813 transitions. Second operand 20 states. [2019-11-07 00:53:42,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:53:42,905 INFO L93 Difference]: Finished difference Result 5086 states and 7256 transitions. [2019-11-07 00:53:42,906 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-11-07 00:53:42,906 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 207 [2019-11-07 00:53:42,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:53:42,924 INFO L225 Difference]: With dead ends: 5086 [2019-11-07 00:53:42,925 INFO L226 Difference]: Without dead ends: 2667 [2019-11-07 00:53:42,934 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2019-11-07 00:53:42,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2667 states. [2019-11-07 00:53:43,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2667 to 2665. [2019-11-07 00:53:43,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2665 states. [2019-11-07 00:53:43,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2665 states to 2665 states and 3727 transitions. [2019-11-07 00:53:43,048 INFO L78 Accepts]: Start accepts. Automaton has 2665 states and 3727 transitions. Word has length 207 [2019-11-07 00:53:43,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:53:43,049 INFO L462 AbstractCegarLoop]: Abstraction has 2665 states and 3727 transitions. [2019-11-07 00:53:43,049 INFO L463 AbstractCegarLoop]: Interpolant automaton has 20 states. [2019-11-07 00:53:43,049 INFO L276 IsEmpty]: Start isEmpty. Operand 2665 states and 3727 transitions. [2019-11-07 00:53:43,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2019-11-07 00:53:43,054 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:53:43,054 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:53:43,054 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:53:43,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:53:43,055 INFO L82 PathProgramCache]: Analyzing trace with hash 230982638, now seen corresponding path program 1 times [2019-11-07 00:53:43,055 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:53:43,055 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732535984] [2019-11-07 00:53:43,055 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:53:43,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:53:43,235 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-11-07 00:53:43,236 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732535984] [2019-11-07 00:53:43,237 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:53:43,237 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-07 00:53:43,237 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750471348] [2019-11-07 00:53:43,238 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-07 00:53:43,238 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:53:43,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-07 00:53:43,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-07 00:53:43,239 INFO L87 Difference]: Start difference. First operand 2665 states and 3727 transitions. Second operand 6 states. [2019-11-07 00:53:44,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:53:44,017 INFO L93 Difference]: Finished difference Result 7713 states and 10967 transitions. [2019-11-07 00:53:44,017 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-07 00:53:44,018 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 216 [2019-11-07 00:53:44,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:53:44,054 INFO L225 Difference]: With dead ends: 7713 [2019-11-07 00:53:44,054 INFO L226 Difference]: Without dead ends: 5417 [2019-11-07 00:53:44,064 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-07 00:53:44,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5417 states. [2019-11-07 00:53:44,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5417 to 5346. [2019-11-07 00:53:44,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5346 states. [2019-11-07 00:53:44,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5346 states to 5346 states and 7577 transitions. [2019-11-07 00:53:44,312 INFO L78 Accepts]: Start accepts. Automaton has 5346 states and 7577 transitions. Word has length 216 [2019-11-07 00:53:44,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:53:44,313 INFO L462 AbstractCegarLoop]: Abstraction has 5346 states and 7577 transitions. [2019-11-07 00:53:44,313 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-07 00:53:44,314 INFO L276 IsEmpty]: Start isEmpty. Operand 5346 states and 7577 transitions. [2019-11-07 00:53:44,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2019-11-07 00:53:44,324 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:53:44,324 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:53:44,324 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:53:44,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:53:44,325 INFO L82 PathProgramCache]: Analyzing trace with hash -95717533, now seen corresponding path program 1 times [2019-11-07 00:53:44,325 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:53:44,326 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569102789] [2019-11-07 00:53:44,326 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:53:44,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:53:44,661 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-11-07 00:53:44,661 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569102789] [2019-11-07 00:53:44,661 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:53:44,662 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-11-07 00:53:44,662 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465853786] [2019-11-07 00:53:44,663 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-11-07 00:53:44,663 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:53:44,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-07 00:53:44,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2019-11-07 00:53:44,664 INFO L87 Difference]: Start difference. First operand 5346 states and 7577 transitions. Second operand 13 states. [2019-11-07 00:53:45,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:53:45,479 INFO L93 Difference]: Finished difference Result 10077 states and 14314 transitions. [2019-11-07 00:53:45,479 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-07 00:53:45,482 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 217 [2019-11-07 00:53:45,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:53:45,518 INFO L225 Difference]: With dead ends: 10077 [2019-11-07 00:53:45,519 INFO L226 Difference]: Without dead ends: 5400 [2019-11-07 00:53:45,536 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=433, Unknown=0, NotChecked=0, Total=506 [2019-11-07 00:53:45,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5400 states. [2019-11-07 00:53:45,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5400 to 5382. [2019-11-07 00:53:45,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5382 states. [2019-11-07 00:53:45,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5382 states to 5382 states and 7631 transitions. [2019-11-07 00:53:45,761 INFO L78 Accepts]: Start accepts. Automaton has 5382 states and 7631 transitions. Word has length 217 [2019-11-07 00:53:45,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:53:45,762 INFO L462 AbstractCegarLoop]: Abstraction has 5382 states and 7631 transitions. [2019-11-07 00:53:45,762 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-11-07 00:53:45,762 INFO L276 IsEmpty]: Start isEmpty. Operand 5382 states and 7631 transitions. [2019-11-07 00:53:45,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2019-11-07 00:53:45,769 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:53:45,769 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:53:45,769 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:53:45,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:53:45,770 INFO L82 PathProgramCache]: Analyzing trace with hash 491058586, now seen corresponding path program 1 times [2019-11-07 00:53:45,770 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:53:45,771 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007509792] [2019-11-07 00:53:45,771 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:53:45,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:53:45,976 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-11-07 00:53:45,977 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007509792] [2019-11-07 00:53:45,977 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:53:45,977 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-07 00:53:45,978 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410591503] [2019-11-07 00:53:45,979 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-07 00:53:45,980 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:53:45,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-07 00:53:45,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-07 00:53:45,982 INFO L87 Difference]: Start difference. First operand 5382 states and 7631 transitions. Second operand 5 states. [2019-11-07 00:53:47,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:53:47,646 INFO L93 Difference]: Finished difference Result 20027 states and 29083 transitions. [2019-11-07 00:53:47,646 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-07 00:53:47,647 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 217 [2019-11-07 00:53:47,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:53:47,757 INFO L225 Difference]: With dead ends: 20027 [2019-11-07 00:53:47,757 INFO L226 Difference]: Without dead ends: 15316 [2019-11-07 00:53:47,790 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-11-07 00:53:47,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15316 states. [2019-11-07 00:53:48,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15316 to 15204. [2019-11-07 00:53:48,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15204 states. [2019-11-07 00:53:49,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15204 states to 15204 states and 21825 transitions. [2019-11-07 00:53:49,230 INFO L78 Accepts]: Start accepts. Automaton has 15204 states and 21825 transitions. Word has length 217 [2019-11-07 00:53:49,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:53:49,231 INFO L462 AbstractCegarLoop]: Abstraction has 15204 states and 21825 transitions. [2019-11-07 00:53:49,231 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-07 00:53:49,231 INFO L276 IsEmpty]: Start isEmpty. Operand 15204 states and 21825 transitions. [2019-11-07 00:53:49,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2019-11-07 00:53:49,246 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:53:49,246 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:53:49,246 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:53:49,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:53:49,247 INFO L82 PathProgramCache]: Analyzing trace with hash -364250432, now seen corresponding path program 1 times [2019-11-07 00:53:49,247 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:53:49,247 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932530283] [2019-11-07 00:53:49,247 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:53:49,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:53:49,441 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-11-07 00:53:49,441 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932530283] [2019-11-07 00:53:49,443 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:53:49,444 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:53:49,444 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105825559] [2019-11-07 00:53:49,445 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:53:49,445 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:53:49,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:53:49,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:53:49,446 INFO L87 Difference]: Start difference. First operand 15204 states and 21825 transitions. Second operand 3 states. [2019-11-07 00:53:49,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:53:49,868 INFO L93 Difference]: Finished difference Result 30671 states and 44186 transitions. [2019-11-07 00:53:49,869 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:53:49,869 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 246 [2019-11-07 00:53:49,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:53:49,975 INFO L225 Difference]: With dead ends: 30671 [2019-11-07 00:53:49,975 INFO L226 Difference]: Without dead ends: 15532 [2019-11-07 00:53:50,040 INFO L630 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 [2019-11-07 00:53:50,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15532 states. [2019-11-07 00:53:50,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15532 to 15528. [2019-11-07 00:53:50,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15528 states. [2019-11-07 00:53:50,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15528 states to 15528 states and 22422 transitions. [2019-11-07 00:53:50,702 INFO L78 Accepts]: Start accepts. Automaton has 15528 states and 22422 transitions. Word has length 246 [2019-11-07 00:53:50,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:53:50,703 INFO L462 AbstractCegarLoop]: Abstraction has 15528 states and 22422 transitions. [2019-11-07 00:53:50,703 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:53:50,703 INFO L276 IsEmpty]: Start isEmpty. Operand 15528 states and 22422 transitions. [2019-11-07 00:53:50,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2019-11-07 00:53:50,723 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:53:50,723 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:53:50,723 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:53:50,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:53:50,724 INFO L82 PathProgramCache]: Analyzing trace with hash 151758884, now seen corresponding path program 1 times [2019-11-07 00:53:50,724 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:53:50,724 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972690290] [2019-11-07 00:53:50,724 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:53:50,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:53:50,947 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-11-07 00:53:50,948 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972690290] [2019-11-07 00:53:50,949 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:53:50,949 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:53:50,949 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591121025] [2019-11-07 00:53:50,950 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:53:50,951 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:53:50,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:53:50,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:53:50,951 INFO L87 Difference]: Start difference. First operand 15528 states and 22422 transitions. Second operand 3 states. [2019-11-07 00:53:51,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:53:51,434 INFO L93 Difference]: Finished difference Result 31603 states and 45913 transitions. [2019-11-07 00:53:51,434 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:53:51,435 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 247 [2019-11-07 00:53:51,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:53:51,500 INFO L225 Difference]: With dead ends: 31603 [2019-11-07 00:53:51,500 INFO L226 Difference]: Without dead ends: 16140 [2019-11-07 00:53:51,532 INFO L630 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 [2019-11-07 00:53:51,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16140 states. [2019-11-07 00:53:52,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16140 to 16136. [2019-11-07 00:53:52,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16136 states. [2019-11-07 00:53:52,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16136 states to 16136 states and 23544 transitions. [2019-11-07 00:53:52,099 INFO L78 Accepts]: Start accepts. Automaton has 16136 states and 23544 transitions. Word has length 247 [2019-11-07 00:53:52,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:53:52,101 INFO L462 AbstractCegarLoop]: Abstraction has 16136 states and 23544 transitions. [2019-11-07 00:53:52,102 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:53:52,102 INFO L276 IsEmpty]: Start isEmpty. Operand 16136 states and 23544 transitions. [2019-11-07 00:53:52,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2019-11-07 00:53:52,119 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:53:52,120 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:53:52,120 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:53:52,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:53:52,121 INFO L82 PathProgramCache]: Analyzing trace with hash -351511822, now seen corresponding path program 1 times [2019-11-07 00:53:52,121 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:53:52,121 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068390541] [2019-11-07 00:53:52,121 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:53:52,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:53:52,455 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-11-07 00:53:52,456 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068390541] [2019-11-07 00:53:52,456 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:53:52,456 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-07 00:53:52,457 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267270598] [2019-11-07 00:53:52,458 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-07 00:53:52,458 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:53:52,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-07 00:53:52,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-11-07 00:53:52,459 INFO L87 Difference]: Start difference. First operand 16136 states and 23544 transitions. Second operand 8 states. [2019-11-07 00:53:58,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:53:58,051 INFO L93 Difference]: Finished difference Result 48774 states and 72622 transitions. [2019-11-07 00:53:58,052 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-11-07 00:53:58,052 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 254 [2019-11-07 00:53:58,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:53:58,178 INFO L225 Difference]: With dead ends: 48774 [2019-11-07 00:53:58,179 INFO L226 Difference]: Without dead ends: 32703 [2019-11-07 00:53:58,232 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2019-11-07 00:53:58,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32703 states. [2019-11-07 00:53:59,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32703 to 18452. [2019-11-07 00:53:59,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18452 states.