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_spec11_product32.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 21:13:38,816 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:13:38,822 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:13:38,836 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:13:38,837 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:13:38,838 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:13:38,840 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:13:38,842 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:13:38,843 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:13:38,844 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:13:38,845 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:13:38,847 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:13:38,847 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:13:38,848 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:13:38,849 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:13:38,850 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:13:38,851 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:13:38,852 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:13:38,854 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:13:38,855 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:13:38,857 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:13:38,858 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:13:38,859 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:13:38,860 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:13:38,862 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 21:13:38,862 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 21:13:38,863 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 21:13:38,863 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 21:13:38,864 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 21:13:38,865 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 21:13:38,865 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 21:13:38,866 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 21:13:38,867 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 21:13:38,867 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 21:13:38,868 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 21:13:38,869 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 21:13:38,869 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 21:13:38,869 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 21:13:38,870 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:13:38,871 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:13:38,871 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:13:38,872 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 21:13:38,888 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:13:38,888 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:13:38,891 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:13:38,892 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:13:38,892 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:13:38,893 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:13:38,893 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:13:38,893 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:13:38,894 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:13:38,894 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:13:38,894 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:13:38,894 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:13:38,894 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:13:38,895 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:13:38,895 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:13:38,895 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:13:38,896 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:13:38,896 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:13:38,896 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:13:38,896 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:13:38,897 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:13:38,897 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:13:38,897 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:13:38,898 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:13:38,898 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:13:38,898 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:13:38,898 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:13:38,899 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:13:38,899 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 [2019-10-13 21:13:39,192 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:13:39,206 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:13:39,209 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:13:39,211 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:13:39,211 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:13:39,212 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec11_product32.cil.c [2019-10-13 21:13:39,291 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0071eb5ec/0bfcc2d7e708422da44fb3cb482a0fbe/FLAGb9d4e7d12 [2019-10-13 21:13:39,976 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:13:39,977 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec11_product32.cil.c [2019-10-13 21:13:40,002 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0071eb5ec/0bfcc2d7e708422da44fb3cb482a0fbe/FLAGb9d4e7d12 [2019-10-13 21:13:40,172 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0071eb5ec/0bfcc2d7e708422da44fb3cb482a0fbe [2019-10-13 21:13:40,182 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:13:40,184 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:13:40,185 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:13:40,185 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:13:40,189 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:13:40,190 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:13:40" (1/1) ... [2019-10-13 21:13:40,192 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@117b6aad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:13:40, skipping insertion in model container [2019-10-13 21:13:40,192 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:13:40" (1/1) ... [2019-10-13 21:13:40,199 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:13:40,274 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:13:41,124 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:13:41,151 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:13:41,268 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:13:41,372 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:13:41,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:13:41 WrapperNode [2019-10-13 21:13:41,373 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:13:41,374 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:13:41,374 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:13:41,374 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:13:41,392 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:13:41" (1/1) ... [2019-10-13 21:13:41,392 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:13:41" (1/1) ... [2019-10-13 21:13:41,464 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:13:41" (1/1) ... [2019-10-13 21:13:41,468 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:13:41" (1/1) ... [2019-10-13 21:13:41,549 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:13:41" (1/1) ... [2019-10-13 21:13:41,566 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:13:41" (1/1) ... [2019-10-13 21:13:41,580 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:13:41" (1/1) ... [2019-10-13 21:13:41,597 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:13:41,598 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:13:41,598 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:13:41,598 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:13:41,599 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:13:41" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:13:41,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:13:41,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:13:41,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 21:13:41,663 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 21:13:41,663 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 21:13:41,663 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 21:13:41,663 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 21:13:41,663 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 21:13:41,664 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 21:13:41,664 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 21:13:41,664 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 21:13:41,664 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 21:13:41,664 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 21:13:41,665 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 21:13:41,665 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 21:13:41,665 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 21:13:41,665 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 21:13:41,665 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 21:13:41,666 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 21:13:41,666 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 21:13:41,666 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 21:13:41,668 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 21:13:41,668 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 21:13:41,669 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 21:13:41,669 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 21:13:41,669 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 21:13:41,669 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 21:13:41,669 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 21:13:41,669 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 21:13:41,669 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 21:13:41,670 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 21:13:41,670 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 21:13:41,670 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 21:13:41,670 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 21:13:41,670 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 21:13:41,670 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 21:13:41,670 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 21:13:41,671 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 21:13:41,671 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 21:13:41,671 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 21:13:41,671 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 21:13:41,671 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:13:41,671 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 21:13:41,672 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 21:13:41,672 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 21:13:41,672 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 21:13:41,672 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 21:13:41,672 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 21:13:41,673 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 21:13:41,673 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 21:13:41,673 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 21:13:41,673 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-13 21:13:41,673 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-13 21:13:41,673 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 21:13:41,674 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 21:13:41,674 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 21:13:41,674 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 21:13:41,674 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 21:13:41,674 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-13 21:13:41,674 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-13 21:13:41,675 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 21:13:41,675 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 21:13:41,675 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 21:13:41,675 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 21:13:41,675 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 21:13:41,675 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 21:13:41,676 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 21:13:41,676 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 21:13:41,676 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 21:13:41,676 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 21:13:41,676 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 21:13:41,677 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 21:13:41,677 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 21:13:41,677 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 21:13:41,677 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 21:13:41,677 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-13 21:13:41,677 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-13 21:13:41,677 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 21:13:41,678 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 21:13:41,678 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-13 21:13:41,678 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-13 21:13:41,678 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-13 21:13:41,678 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 21:13:41,678 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 21:13:41,678 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 21:13:41,679 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 21:13:41,679 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 21:13:41,679 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 21:13:41,679 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 21:13:41,679 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 21:13:41,679 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 21:13:41,680 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-13 21:13:41,680 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-13 21:13:41,680 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-13 21:13:41,680 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-13 21:13:41,680 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptAutoResponder_spec__1 [2019-10-13 21:13:41,680 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 21:13:41,680 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 21:13:41,681 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 21:13:41,681 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 21:13:41,681 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 21:13:41,681 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 21:13:41,681 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 21:13:41,681 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 21:13:41,681 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 21:13:41,682 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 21:13:41,682 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 21:13:41,682 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 21:13:41,682 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 21:13:41,682 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 21:13:41,682 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 21:13:41,683 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 21:13:41,683 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 21:13:41,683 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 21:13:41,683 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 21:13:41,683 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 21:13:41,683 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 21:13:41,683 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 21:13:41,683 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:13:41,684 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 21:13:41,684 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 21:13:41,684 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 21:13:41,684 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 21:13:41,684 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 21:13:41,684 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 21:13:41,685 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 21:13:41,685 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 21:13:41,685 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 21:13:41,685 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 21:13:41,685 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 21:13:41,686 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 21:13:41,686 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 21:13:41,686 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 21:13:41,686 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 21:13:41,686 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 21:13:41,686 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 21:13:41,686 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 21:13:41,687 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 21:13:41,687 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 21:13:41,687 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 21:13:41,687 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 21:13:41,687 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 21:13:41,687 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 21:13:41,688 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 21:13:41,688 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 21:13:41,688 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 21:13:41,688 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 21:13:41,688 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 21:13:41,688 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 21:13:41,689 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 21:13:41,689 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 21:13:41,689 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 21:13:41,689 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 21:13:41,689 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 21:13:41,689 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 21:13:41,689 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 21:13:41,690 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 21:13:41,690 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 21:13:41,690 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 21:13:41,690 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 21:13:41,690 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 21:13:41,690 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 21:13:41,690 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 21:13:41,691 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 21:13:41,691 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 21:13:41,691 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 21:13:41,691 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 21:13:41,691 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:13:41,691 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 21:13:41,691 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 21:13:41,692 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 21:13:41,692 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 21:13:41,692 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 21:13:41,692 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 21:13:41,692 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 21:13:41,692 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 21:13:41,693 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 21:13:41,693 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-13 21:13:41,693 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-13 21:13:41,693 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 21:13:41,693 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 21:13:41,693 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 21:13:41,693 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 21:13:41,694 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 21:13:41,694 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 21:13:41,694 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 21:13:41,694 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 21:13:41,694 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 21:13:41,694 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 21:13:41,694 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 21:13:41,695 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 21:13:41,695 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 21:13:41,695 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 21:13:41,695 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 21:13:41,695 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 21:13:41,695 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 21:13:41,696 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 21:13:41,696 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 21:13:41,696 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 21:13:41,696 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-13 21:13:41,696 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-13 21:13:41,696 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 21:13:41,696 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 21:13:41,697 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 21:13:41,697 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 21:13:41,697 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 21:13:41,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 21:13:41,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 21:13:41,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 21:13:41,698 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 21:13:41,698 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 21:13:41,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 21:13:41,698 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 21:13:41,698 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 21:13:41,699 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 21:13:41,699 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 21:13:41,699 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 21:13:41,699 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 21:13:41,699 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 21:13:41,700 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 21:13:41,700 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 21:13:41,700 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 21:13:41,700 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 21:13:41,700 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 21:13:41,700 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 21:13:41,701 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 21:13:41,701 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 21:13:41,701 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 21:13:41,701 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 21:13:41,701 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 21:13:41,702 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 21:13:41,702 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-13 21:13:41,702 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-13 21:13:41,702 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-13 21:13:41,702 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-13 21:13:41,702 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 21:13:41,703 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-13 21:13:41,703 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-13 21:13:41,703 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-13 21:13:41,703 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-13 21:13:41,703 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-13 21:13:41,703 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptAutoResponder_spec__1 [2019-10-13 21:13:41,704 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 21:13:41,704 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 21:13:41,704 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 21:13:41,704 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 21:13:41,704 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 21:13:41,704 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 21:13:41,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:13:41,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 21:13:41,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:13:43,891 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:13:43,891 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 21:13:43,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:13:43 BoogieIcfgContainer [2019-10-13 21:13:43,894 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:13:43,895 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:13:43,895 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:13:43,899 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:13:43,900 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:13:40" (1/3) ... [2019-10-13 21:13:43,901 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16907eb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:13:43, skipping insertion in model container [2019-10-13 21:13:43,901 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:13:41" (2/3) ... [2019-10-13 21:13:43,901 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16907eb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:13:43, skipping insertion in model container [2019-10-13 21:13:43,902 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:13:43" (3/3) ... [2019-10-13 21:13:43,904 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec11_product32.cil.c [2019-10-13 21:13:43,915 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:13:43,933 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:13:43,945 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:13:43,987 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:13:43,987 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:13:43,987 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:13:43,987 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:13:43,987 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:13:43,996 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:13:43,997 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:13:43,997 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:13:44,043 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states. [2019-10-13 21:13:44,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2019-10-13 21:13:44,076 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:44,077 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:13:44,080 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:44,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:44,085 INFO L82 PathProgramCache]: Analyzing trace with hash 524711374, now seen corresponding path program 1 times [2019-10-13 21:13:44,093 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:44,093 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697075703] [2019-10-13 21:13:44,094 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:44,094 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:44,094 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:44,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:44,872 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-13 21:13:44,873 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697075703] [2019-10-13 21:13:44,874 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:44,874 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 21:13:44,874 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614678292] [2019-10-13 21:13:44,881 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 21:13:44,883 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:44,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 21:13:44,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:13:44,901 INFO L87 Difference]: Start difference. First operand 634 states. Second operand 2 states. [2019-10-13 21:13:45,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:45,017 INFO L93 Difference]: Finished difference Result 898 states and 1221 transitions. [2019-10-13 21:13:45,017 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 21:13:45,019 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 225 [2019-10-13 21:13:45,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:45,059 INFO L225 Difference]: With dead ends: 898 [2019-10-13 21:13:45,059 INFO L226 Difference]: Without dead ends: 577 [2019-10-13 21:13:45,072 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:13:45,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2019-10-13 21:13:45,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 577. [2019-10-13 21:13:45,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 577 states. [2019-10-13 21:13:45,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 787 transitions. [2019-10-13 21:13:45,195 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 787 transitions. Word has length 225 [2019-10-13 21:13:45,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:45,197 INFO L462 AbstractCegarLoop]: Abstraction has 577 states and 787 transitions. [2019-10-13 21:13:45,197 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 21:13:45,197 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 787 transitions. [2019-10-13 21:13:45,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2019-10-13 21:13:45,204 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:45,205 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:13:45,205 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:45,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:45,206 INFO L82 PathProgramCache]: Analyzing trace with hash 426124943, now seen corresponding path program 1 times [2019-10-13 21:13:45,206 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:45,206 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932676600] [2019-10-13 21:13:45,206 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:45,206 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:45,206 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:45,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:45,600 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-13 21:13:45,600 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932676600] [2019-10-13 21:13:45,600 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:45,601 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:13:45,601 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474078104] [2019-10-13 21:13:45,607 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:13:45,607 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:45,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:13:45,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:13:45,608 INFO L87 Difference]: Start difference. First operand 577 states and 787 transitions. Second operand 3 states. [2019-10-13 21:13:45,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:45,683 INFO L93 Difference]: Finished difference Result 881 states and 1182 transitions. [2019-10-13 21:13:45,683 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:13:45,683 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 226 [2019-10-13 21:13:45,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:45,691 INFO L225 Difference]: With dead ends: 881 [2019-10-13 21:13:45,692 INFO L226 Difference]: Without dead ends: 580 [2019-10-13 21:13:45,693 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:13:45,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2019-10-13 21:13:45,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 579. [2019-10-13 21:13:45,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 579 states. [2019-10-13 21:13:45,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 789 transitions. [2019-10-13 21:13:45,744 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 789 transitions. Word has length 226 [2019-10-13 21:13:45,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:45,745 INFO L462 AbstractCegarLoop]: Abstraction has 579 states and 789 transitions. [2019-10-13 21:13:45,748 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:13:45,748 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 789 transitions. [2019-10-13 21:13:45,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2019-10-13 21:13:45,753 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:45,754 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:13:45,754 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:45,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:45,755 INFO L82 PathProgramCache]: Analyzing trace with hash -478434401, now seen corresponding path program 1 times [2019-10-13 21:13:45,755 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:45,755 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838031080] [2019-10-13 21:13:45,757 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:45,757 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:45,757 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:45,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:45,946 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-13 21:13:45,947 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838031080] [2019-10-13 21:13:45,947 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:45,947 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:13:45,947 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306047525] [2019-10-13 21:13:45,950 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:13:45,950 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:45,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:13:45,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:13:45,951 INFO L87 Difference]: Start difference. First operand 579 states and 789 transitions. Second operand 3 states. [2019-10-13 21:13:46,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:46,031 INFO L93 Difference]: Finished difference Result 1136 states and 1579 transitions. [2019-10-13 21:13:46,032 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:13:46,032 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 236 [2019-10-13 21:13:46,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:46,046 INFO L225 Difference]: With dead ends: 1136 [2019-10-13 21:13:46,046 INFO L226 Difference]: Without dead ends: 622 [2019-10-13 21:13:46,049 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:13:46,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2019-10-13 21:13:46,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 621. [2019-10-13 21:13:46,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 621 states. [2019-10-13 21:13:46,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 621 states to 621 states and 861 transitions. [2019-10-13 21:13:46,187 INFO L78 Accepts]: Start accepts. Automaton has 621 states and 861 transitions. Word has length 236 [2019-10-13 21:13:46,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:46,188 INFO L462 AbstractCegarLoop]: Abstraction has 621 states and 861 transitions. [2019-10-13 21:13:46,189 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:13:46,190 INFO L276 IsEmpty]: Start isEmpty. Operand 621 states and 861 transitions. [2019-10-13 21:13:46,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2019-10-13 21:13:46,199 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:46,200 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:13:46,200 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:46,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:46,201 INFO L82 PathProgramCache]: Analyzing trace with hash 28118044, now seen corresponding path program 1 times [2019-10-13 21:13:46,202 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:46,203 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430501105] [2019-10-13 21:13:46,203 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:46,203 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:46,204 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:46,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:46,497 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-13 21:13:46,497 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430501105] [2019-10-13 21:13:46,498 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:46,498 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:13:46,498 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111811616] [2019-10-13 21:13:46,499 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:13:46,500 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:46,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:13:46,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:13:46,501 INFO L87 Difference]: Start difference. First operand 621 states and 861 transitions. Second operand 3 states. [2019-10-13 21:13:46,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:46,566 INFO L93 Difference]: Finished difference Result 1259 states and 1790 transitions. [2019-10-13 21:13:46,567 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:13:46,567 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 237 [2019-10-13 21:13:46,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:46,575 INFO L225 Difference]: With dead ends: 1259 [2019-10-13 21:13:46,575 INFO L226 Difference]: Without dead ends: 703 [2019-10-13 21:13:46,578 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:13:46,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 703 states. [2019-10-13 21:13:46,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 703 to 702. [2019-10-13 21:13:46,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 702 states. [2019-10-13 21:13:46,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 702 states to 702 states and 999 transitions. [2019-10-13 21:13:46,627 INFO L78 Accepts]: Start accepts. Automaton has 702 states and 999 transitions. Word has length 237 [2019-10-13 21:13:46,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:46,628 INFO L462 AbstractCegarLoop]: Abstraction has 702 states and 999 transitions. [2019-10-13 21:13:46,628 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:13:46,629 INFO L276 IsEmpty]: Start isEmpty. Operand 702 states and 999 transitions. [2019-10-13 21:13:46,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2019-10-13 21:13:46,638 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:46,639 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:13:46,639 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:46,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:46,640 INFO L82 PathProgramCache]: Analyzing trace with hash 280680863, now seen corresponding path program 1 times [2019-10-13 21:13:46,640 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:46,641 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820669063] [2019-10-13 21:13:46,641 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:46,642 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:46,642 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:46,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:46,956 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-13 21:13:46,957 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820669063] [2019-10-13 21:13:46,957 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:46,957 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:13:46,957 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74796826] [2019-10-13 21:13:46,958 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:13:46,958 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:46,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:13:46,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:13:46,960 INFO L87 Difference]: Start difference. First operand 702 states and 999 transitions. Second operand 3 states. [2019-10-13 21:13:47,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:47,003 INFO L93 Difference]: Finished difference Result 1496 states and 2194 transitions. [2019-10-13 21:13:47,003 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:13:47,003 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 238 [2019-10-13 21:13:47,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:47,012 INFO L225 Difference]: With dead ends: 1496 [2019-10-13 21:13:47,012 INFO L226 Difference]: Without dead ends: 859 [2019-10-13 21:13:47,015 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:13:47,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 859 states. [2019-10-13 21:13:47,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 859 to 858. [2019-10-13 21:13:47,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 858 states. [2019-10-13 21:13:47,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 858 states to 858 states and 1263 transitions. [2019-10-13 21:13:47,066 INFO L78 Accepts]: Start accepts. Automaton has 858 states and 1263 transitions. Word has length 238 [2019-10-13 21:13:47,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:47,067 INFO L462 AbstractCegarLoop]: Abstraction has 858 states and 1263 transitions. [2019-10-13 21:13:47,067 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:13:47,067 INFO L276 IsEmpty]: Start isEmpty. Operand 858 states and 1263 transitions. [2019-10-13 21:13:47,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2019-10-13 21:13:47,075 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:47,076 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:13:47,076 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:47,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:47,076 INFO L82 PathProgramCache]: Analyzing trace with hash 407261724, now seen corresponding path program 1 times [2019-10-13 21:13:47,077 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:47,077 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950990386] [2019-10-13 21:13:47,077 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:47,077 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:47,078 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:47,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:47,262 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-13 21:13:47,263 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950990386] [2019-10-13 21:13:47,263 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:47,263 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:13:47,263 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744731139] [2019-10-13 21:13:47,264 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:13:47,264 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:47,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:13:47,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:13:47,265 INFO L87 Difference]: Start difference. First operand 858 states and 1263 transitions. Second operand 3 states. [2019-10-13 21:13:47,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:47,321 INFO L93 Difference]: Finished difference Result 1952 states and 2966 transitions. [2019-10-13 21:13:47,322 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:13:47,322 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 239 [2019-10-13 21:13:47,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:47,330 INFO L225 Difference]: With dead ends: 1952 [2019-10-13 21:13:47,330 INFO L226 Difference]: Without dead ends: 1159 [2019-10-13 21:13:47,335 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:13:47,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1159 states. [2019-10-13 21:13:47,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1159 to 1158. [2019-10-13 21:13:47,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1158 states. [2019-10-13 21:13:47,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1158 states to 1158 states and 1767 transitions. [2019-10-13 21:13:47,400 INFO L78 Accepts]: Start accepts. Automaton has 1158 states and 1767 transitions. Word has length 239 [2019-10-13 21:13:47,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:47,401 INFO L462 AbstractCegarLoop]: Abstraction has 1158 states and 1767 transitions. [2019-10-13 21:13:47,401 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:13:47,401 INFO L276 IsEmpty]: Start isEmpty. Operand 1158 states and 1767 transitions. [2019-10-13 21:13:47,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2019-10-13 21:13:47,413 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:47,414 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:13:47,414 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:47,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:47,415 INFO L82 PathProgramCache]: Analyzing trace with hash 1311842207, now seen corresponding path program 1 times [2019-10-13 21:13:47,415 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:47,415 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318519623] [2019-10-13 21:13:47,415 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:47,415 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:47,416 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:47,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:47,697 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-13 21:13:47,697 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318519623] [2019-10-13 21:13:47,697 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:47,697 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:13:47,698 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493659052] [2019-10-13 21:13:47,700 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:13:47,700 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:47,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:13:47,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:13:47,701 INFO L87 Difference]: Start difference. First operand 1158 states and 1767 transitions. Second operand 3 states. [2019-10-13 21:13:47,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:47,784 INFO L93 Difference]: Finished difference Result 2828 states and 4438 transitions. [2019-10-13 21:13:47,784 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:13:47,785 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 240 [2019-10-13 21:13:47,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:47,796 INFO L225 Difference]: With dead ends: 2828 [2019-10-13 21:13:47,797 INFO L226 Difference]: Without dead ends: 1735 [2019-10-13 21:13:47,804 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:13:47,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1735 states. [2019-10-13 21:13:47,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1735 to 1734. [2019-10-13 21:13:47,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1734 states. [2019-10-13 21:13:47,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1734 states to 1734 states and 2727 transitions. [2019-10-13 21:13:47,903 INFO L78 Accepts]: Start accepts. Automaton has 1734 states and 2727 transitions. Word has length 240 [2019-10-13 21:13:47,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:47,904 INFO L462 AbstractCegarLoop]: Abstraction has 1734 states and 2727 transitions. [2019-10-13 21:13:47,904 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:13:47,904 INFO L276 IsEmpty]: Start isEmpty. Operand 1734 states and 2727 transitions. [2019-10-13 21:13:47,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2019-10-13 21:13:47,916 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:47,917 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:13:47,917 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:47,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:47,918 INFO L82 PathProgramCache]: Analyzing trace with hash 689298150, now seen corresponding path program 1 times [2019-10-13 21:13:47,918 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:47,918 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773103868] [2019-10-13 21:13:47,918 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:47,919 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:47,919 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:47,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:48,469 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2019-10-13 21:13:48,470 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773103868] [2019-10-13 21:13:48,470 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:48,470 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-10-13 21:13:48,470 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266400892] [2019-10-13 21:13:48,472 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-10-13 21:13:48,472 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:48,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-10-13 21:13:48,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2019-10-13 21:13:48,473 INFO L87 Difference]: Start difference. First operand 1734 states and 2727 transitions. Second operand 19 states. [2019-10-13 21:13:54,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:54,702 INFO L93 Difference]: Finished difference Result 4365 states and 6833 transitions. [2019-10-13 21:13:54,702 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2019-10-13 21:13:54,702 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 242 [2019-10-13 21:13:54,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:54,750 INFO L225 Difference]: With dead ends: 4365 [2019-10-13 21:13:54,750 INFO L226 Difference]: Without dead ends: 4077 [2019-10-13 21:13:54,756 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 708 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=287, Invalid=2683, Unknown=0, NotChecked=0, Total=2970 [2019-10-13 21:13:54,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4077 states. [2019-10-13 21:13:55,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4077 to 4040. [2019-10-13 21:13:55,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4040 states. [2019-10-13 21:13:55,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4040 states to 4040 states and 6381 transitions. [2019-10-13 21:13:55,054 INFO L78 Accepts]: Start accepts. Automaton has 4040 states and 6381 transitions. Word has length 242 [2019-10-13 21:13:55,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:55,057 INFO L462 AbstractCegarLoop]: Abstraction has 4040 states and 6381 transitions. [2019-10-13 21:13:55,057 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-10-13 21:13:55,057 INFO L276 IsEmpty]: Start isEmpty. Operand 4040 states and 6381 transitions. [2019-10-13 21:13:55,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2019-10-13 21:13:55,079 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:55,080 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:13:55,080 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:55,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:55,081 INFO L82 PathProgramCache]: Analyzing trace with hash -179274695, now seen corresponding path program 1 times [2019-10-13 21:13:55,081 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:55,081 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920351380] [2019-10-13 21:13:55,081 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:55,082 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:55,082 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:55,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:55,370 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2019-10-13 21:13:55,371 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920351380] [2019-10-13 21:13:55,371 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:55,372 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-10-13 21:13:55,373 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240699182] [2019-10-13 21:13:55,375 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-13 21:13:55,375 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:55,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-13 21:13:55,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2019-10-13 21:13:55,376 INFO L87 Difference]: Start difference. First operand 4040 states and 6381 transitions. Second operand 13 states. [2019-10-13 21:13:56,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:56,043 INFO L93 Difference]: Finished difference Result 5393 states and 8281 transitions. [2019-10-13 21:13:56,043 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-13 21:13:56,043 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 243 [2019-10-13 21:13:56,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:56,075 INFO L225 Difference]: With dead ends: 5393 [2019-10-13 21:13:56,075 INFO L226 Difference]: Without dead ends: 4174 [2019-10-13 21:13:56,085 INFO L600 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 [2019-10-13 21:13:56,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4174 states. [2019-10-13 21:13:56,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4174 to 4174. [2019-10-13 21:13:56,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4174 states. [2019-10-13 21:13:56,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4174 states to 4174 states and 6598 transitions. [2019-10-13 21:13:56,399 INFO L78 Accepts]: Start accepts. Automaton has 4174 states and 6598 transitions. Word has length 243 [2019-10-13 21:13:56,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:56,400 INFO L462 AbstractCegarLoop]: Abstraction has 4174 states and 6598 transitions. [2019-10-13 21:13:56,400 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-10-13 21:13:56,400 INFO L276 IsEmpty]: Start isEmpty. Operand 4174 states and 6598 transitions. [2019-10-13 21:13:56,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2019-10-13 21:13:56,431 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:56,432 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:13:56,432 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:56,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:56,433 INFO L82 PathProgramCache]: Analyzing trace with hash 766207055, now seen corresponding path program 1 times [2019-10-13 21:13:56,433 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:56,433 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451703533] [2019-10-13 21:13:56,433 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:56,433 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:56,434 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:56,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:56,882 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2019-10-13 21:13:56,883 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451703533] [2019-10-13 21:13:56,884 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:56,884 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2019-10-13 21:13:56,885 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976305517] [2019-10-13 21:13:56,886 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-10-13 21:13:56,886 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:56,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-10-13 21:13:56,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2019-10-13 21:13:56,887 INFO L87 Difference]: Start difference. First operand 4174 states and 6598 transitions. Second operand 15 states. [2019-10-13 21:14:00,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:14:00,968 INFO L93 Difference]: Finished difference Result 5565 states and 8573 transitions. [2019-10-13 21:14:00,968 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2019-10-13 21:14:00,968 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 243 [2019-10-13 21:14:00,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:14:00,995 INFO L225 Difference]: With dead ends: 5565 [2019-10-13 21:14:00,996 INFO L226 Difference]: Without dead ends: 4292 [2019-10-13 21:14:01,003 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 513 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=229, Invalid=1933, Unknown=0, NotChecked=0, Total=2162 [2019-10-13 21:14:01,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4292 states. [2019-10-13 21:14:01,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4292 to 4255. [2019-10-13 21:14:01,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4255 states. [2019-10-13 21:14:01,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4255 states to 4255 states and 6736 transitions. [2019-10-13 21:14:01,254 INFO L78 Accepts]: Start accepts. Automaton has 4255 states and 6736 transitions. Word has length 243 [2019-10-13 21:14:01,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:14:01,255 INFO L462 AbstractCegarLoop]: Abstraction has 4255 states and 6736 transitions. [2019-10-13 21:14:01,255 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-10-13 21:14:01,255 INFO L276 IsEmpty]: Start isEmpty. Operand 4255 states and 6736 transitions. [2019-10-13 21:14:01,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2019-10-13 21:14:01,281 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:14:01,282 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:14:01,282 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:14:01,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:14:01,283 INFO L82 PathProgramCache]: Analyzing trace with hash -804199253, now seen corresponding path program 1 times [2019-10-13 21:14:01,283 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:14:01,283 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708683223] [2019-10-13 21:14:01,283 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:01,284 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:01,284 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:14:01,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:14:01,462 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2019-10-13 21:14:01,462 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708683223] [2019-10-13 21:14:01,463 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:14:01,463 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 21:14:01,463 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69556434] [2019-10-13 21:14:01,464 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 21:14:01,464 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:14:01,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 21:14:01,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 21:14:01,465 INFO L87 Difference]: Start difference. First operand 4255 states and 6736 transitions. Second operand 5 states. [2019-10-13 21:14:01,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:14:01,670 INFO L93 Difference]: Finished difference Result 5271 states and 8123 transitions. [2019-10-13 21:14:01,670 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 21:14:01,670 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 246 [2019-10-13 21:14:01,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:14:01,703 INFO L225 Difference]: With dead ends: 5271 [2019-10-13 21:14:01,704 INFO L226 Difference]: Without dead ends: 3870 [2019-10-13 21:14:01,713 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-13 21:14:01,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3870 states. [2019-10-13 21:14:02,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3870 to 3870. [2019-10-13 21:14:02,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3870 states. [2019-10-13 21:14:02,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3870 states to 3870 states and 6182 transitions. [2019-10-13 21:14:02,030 INFO L78 Accepts]: Start accepts. Automaton has 3870 states and 6182 transitions. Word has length 246 [2019-10-13 21:14:02,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:14:02,032 INFO L462 AbstractCegarLoop]: Abstraction has 3870 states and 6182 transitions. [2019-10-13 21:14:02,033 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 21:14:02,033 INFO L276 IsEmpty]: Start isEmpty. Operand 3870 states and 6182 transitions. [2019-10-13 21:14:02,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2019-10-13 21:14:02,054 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:14:02,054 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:14:02,055 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:14:02,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:14:02,055 INFO L82 PathProgramCache]: Analyzing trace with hash -740936318, now seen corresponding path program 1 times [2019-10-13 21:14:02,055 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:14:02,056 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674985040] [2019-10-13 21:14:02,056 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:02,056 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:02,056 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:14:02,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:14:02,399 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2019-10-13 21:14:02,400 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674985040] [2019-10-13 21:14:02,400 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:14:02,400 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2019-10-13 21:14:02,401 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758878970] [2019-10-13 21:14:02,401 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-10-13 21:14:02,402 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:14:02,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-10-13 21:14:02,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2019-10-13 21:14:02,403 INFO L87 Difference]: Start difference. First operand 3870 states and 6182 transitions. Second operand 15 states. [2019-10-13 21:14:06,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:14:06,096 INFO L93 Difference]: Finished difference Result 4598 states and 7226 transitions. [2019-10-13 21:14:06,097 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2019-10-13 21:14:06,097 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 244 [2019-10-13 21:14:06,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:14:06,121 INFO L225 Difference]: With dead ends: 4598 [2019-10-13 21:14:06,121 INFO L226 Difference]: Without dead ends: 3898 [2019-10-13 21:14:06,127 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=166, Invalid=1166, Unknown=0, NotChecked=0, Total=1332 [2019-10-13 21:14:06,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3898 states. [2019-10-13 21:14:06,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3898 to 3870. [2019-10-13 21:14:06,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3870 states. [2019-10-13 21:14:06,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3870 states to 3870 states and 6182 transitions. [2019-10-13 21:14:06,292 INFO L78 Accepts]: Start accepts. Automaton has 3870 states and 6182 transitions. Word has length 244 [2019-10-13 21:14:06,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:14:06,293 INFO L462 AbstractCegarLoop]: Abstraction has 3870 states and 6182 transitions. [2019-10-13 21:14:06,293 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-10-13 21:14:06,293 INFO L276 IsEmpty]: Start isEmpty. Operand 3870 states and 6182 transitions. [2019-10-13 21:14:06,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2019-10-13 21:14:06,315 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:14:06,315 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:14:06,315 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:14:06,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:14:06,316 INFO L82 PathProgramCache]: Analyzing trace with hash -1288717891, now seen corresponding path program 1 times [2019-10-13 21:14:06,316 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:14:06,316 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599673191] [2019-10-13 21:14:06,316 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:06,317 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:06,317 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:14:06,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:14:06,693 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2019-10-13 21:14:06,694 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599673191] [2019-10-13 21:14:06,694 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:14:06,694 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2019-10-13 21:14:06,694 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043400412] [2019-10-13 21:14:06,695 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-10-13 21:14:06,696 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:14:06,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-10-13 21:14:06,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2019-10-13 21:14:06,697 INFO L87 Difference]: Start difference. First operand 3870 states and 6182 transitions. Second operand 18 states. [2019-10-13 21:14:07,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:14:07,260 INFO L93 Difference]: Finished difference Result 4916 states and 7637 transitions. [2019-10-13 21:14:07,260 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-10-13 21:14:07,260 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 243 [2019-10-13 21:14:07,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:14:07,277 INFO L225 Difference]: With dead ends: 4916 [2019-10-13 21:14:07,277 INFO L226 Difference]: Without dead ends: 3902 [2019-10-13 21:14:07,284 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2019-10-13 21:14:07,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3902 states. [2019-10-13 21:14:07,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3902 to 3900. [2019-10-13 21:14:07,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3900 states. [2019-10-13 21:14:07,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3900 states to 3900 states and 6210 transitions. [2019-10-13 21:14:07,446 INFO L78 Accepts]: Start accepts. Automaton has 3900 states and 6210 transitions. Word has length 243 [2019-10-13 21:14:07,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:14:07,447 INFO L462 AbstractCegarLoop]: Abstraction has 3900 states and 6210 transitions. [2019-10-13 21:14:07,447 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-10-13 21:14:07,447 INFO L276 IsEmpty]: Start isEmpty. Operand 3900 states and 6210 transitions. [2019-10-13 21:14:07,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2019-10-13 21:14:07,468 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:14:07,469 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:14:07,470 INFO L410 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:14:07,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:14:07,470 INFO L82 PathProgramCache]: Analyzing trace with hash 632036331, now seen corresponding path program 1 times [2019-10-13 21:14:07,470 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:14:07,470 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120574217] [2019-10-13 21:14:07,471 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:07,471 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:07,471 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:14:07,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:14:07,811 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2019-10-13 21:14:07,814 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120574217] [2019-10-13 21:14:07,814 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:14:07,814 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 21:14:07,814 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998064838] [2019-10-13 21:14:07,815 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 21:14:07,815 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:14:07,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 21:14:07,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 21:14:07,816 INFO L87 Difference]: Start difference. First operand 3900 states and 6210 transitions. Second operand 5 states. [2019-10-13 21:14:09,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:14:09,258 INFO L93 Difference]: Finished difference Result 7771 states and 12249 transitions. [2019-10-13 21:14:09,258 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 21:14:09,258 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 243 [2019-10-13 21:14:09,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:14:09,290 INFO L225 Difference]: With dead ends: 7771 [2019-10-13 21:14:09,290 INFO L226 Difference]: Without dead ends: 7056 [2019-10-13 21:14:09,297 INFO L600 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 [2019-10-13 21:14:09,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7056 states. [2019-10-13 21:14:09,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7056 to 7042. [2019-10-13 21:14:09,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7042 states. [2019-10-13 21:14:09,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7042 states to 7042 states and 11195 transitions. [2019-10-13 21:14:09,619 INFO L78 Accepts]: Start accepts. Automaton has 7042 states and 11195 transitions. Word has length 243 [2019-10-13 21:14:09,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:14:09,620 INFO L462 AbstractCegarLoop]: Abstraction has 7042 states and 11195 transitions. [2019-10-13 21:14:09,620 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 21:14:09,620 INFO L276 IsEmpty]: Start isEmpty. Operand 7042 states and 11195 transitions. [2019-10-13 21:14:09,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2019-10-13 21:14:09,657 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:14:09,658 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:14:09,658 INFO L410 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:14:09,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:14:09,658 INFO L82 PathProgramCache]: Analyzing trace with hash 1570567946, now seen corresponding path program 1 times [2019-10-13 21:14:09,659 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:14:09,659 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061103444] [2019-10-13 21:14:09,659 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:09,659 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:09,659 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:14:09,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:14:09,925 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-10-13 21:14:09,925 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061103444] [2019-10-13 21:14:09,925 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1944869627] [2019-10-13 21:14:09,926 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true