java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/product-lines/email_spec6_product31.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 21:17:17,981 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:17:17,984 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:17:18,003 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:17:18,004 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:17:18,006 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:17:18,008 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:17:18,018 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:17:18,023 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:17:18,027 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:17:18,028 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:17:18,030 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:17:18,030 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:17:18,032 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:17:18,034 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:17:18,036 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:17:18,037 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:17:18,038 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:17:18,039 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:17:18,044 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:17:18,048 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:17:18,051 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:17:18,054 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:17:18,054 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:17:18,056 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 21:17:18,057 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 21:17:18,057 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 21:17:18,059 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 21:17:18,060 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 21:17:18,061 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 21:17:18,061 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 21:17:18,062 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 21:17:18,062 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 21:17:18,063 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 21:17:18,065 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 21:17:18,065 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 21:17:18,066 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 21:17:18,066 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 21:17:18,066 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:17:18,067 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:17:18,068 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:17:18,069 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 21:17:18,098 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:17:18,098 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:17:18,107 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:17:18,107 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:17:18,107 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:17:18,108 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:17:18,108 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:17:18,108 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:17:18,108 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:17:18,108 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:17:18,109 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:17:18,109 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:17:18,109 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:17:18,110 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:17:18,110 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:17:18,111 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:17:18,111 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:17:18,111 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:17:18,111 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:17:18,111 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:17:18,112 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:17:18,112 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:17:18,112 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:17:18,112 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:17:18,113 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:17:18,113 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:17:18,113 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:17:18,113 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:17:18,113 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 21:17:18,405 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:17:18,419 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:17:18,423 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:17:18,424 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:17:18,425 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:17:18,426 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec6_product31.cil.c [2019-10-13 21:17:18,493 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1037d2272/6c21bd663f874003b2009040c9ace7f5/FLAG35af9d86a [2019-10-13 21:17:19,113 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:17:19,114 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec6_product31.cil.c [2019-10-13 21:17:19,146 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1037d2272/6c21bd663f874003b2009040c9ace7f5/FLAG35af9d86a [2019-10-13 21:17:19,293 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1037d2272/6c21bd663f874003b2009040c9ace7f5 [2019-10-13 21:17:19,302 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:17:19,303 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:17:19,304 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:17:19,304 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:17:19,308 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:17:19,309 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:17:19" (1/1) ... [2019-10-13 21:17:19,312 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d4fe27d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:19, skipping insertion in model container [2019-10-13 21:17:19,313 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:17:19" (1/1) ... [2019-10-13 21:17:19,320 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:17:19,410 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:17:20,232 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:17:20,253 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:17:20,438 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:17:20,551 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:17:20,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:20 WrapperNode [2019-10-13 21:17:20,552 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:17:20,553 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:17:20,553 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:17:20,553 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:17:20,569 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:20" (1/1) ... [2019-10-13 21:17:20,569 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:20" (1/1) ... [2019-10-13 21:17:20,602 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:20" (1/1) ... [2019-10-13 21:17:20,603 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:20" (1/1) ... [2019-10-13 21:17:20,693 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:20" (1/1) ... [2019-10-13 21:17:20,742 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:20" (1/1) ... [2019-10-13 21:17:20,770 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:20" (1/1) ... [2019-10-13 21:17:20,794 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:17:20,795 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:17:20,795 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:17:20,795 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:17:20,797 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:20" (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 21:17:20,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:17:20,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:17:20,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 21:17:20,874 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 21:17:20,874 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 21:17:20,874 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Encrypt [2019-10-13 21:17:20,875 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-13 21:17:20,875 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 21:17:20,875 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 21:17:20,875 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 21:17:20,876 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 21:17:20,876 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 21:17:20,876 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 21:17:20,876 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 21:17:20,877 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 21:17:20,877 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 21:17:20,877 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 21:17:20,877 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 21:17:20,877 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 21:17:20,878 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 21:17:20,878 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 21:17:20,878 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 21:17:20,879 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 21:17:20,879 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 21:17:20,879 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 21:17:20,879 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 21:17:20,879 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 21:17:20,880 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 21:17:20,880 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 21:17:20,880 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 21:17:20,880 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 21:17:20,880 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 21:17:20,880 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 21:17:20,881 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 21:17:20,881 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 21:17:20,881 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 21:17:20,881 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 21:17:20,881 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 21:17:20,881 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 21:17:20,882 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 21:17:20,882 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 21:17:20,882 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 21:17:20,882 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 21:17:20,882 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 21:17:20,882 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 21:17:20,883 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 21:17:20,883 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 21:17:20,883 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 21:17:20,883 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 21:17:20,883 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 21:17:20,883 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 21:17:20,883 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 21:17:20,884 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 21:17:20,884 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 21:17:20,884 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 21:17:20,884 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 21:17:20,884 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 21:17:20,884 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 21:17:20,884 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:17:20,885 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 21:17:20,885 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 21:17:20,885 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 21:17:20,885 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 21:17:20,885 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 21:17:20,885 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 21:17:20,886 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 21:17:20,886 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 21:17:20,886 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 21:17:20,886 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-13 21:17:20,886 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 21:17:20,886 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 21:17:20,887 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-13 21:17:20,887 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 21:17:20,887 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 21:17:20,887 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-13 21:17:20,887 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-13 21:17:20,887 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-13 21:17:20,888 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 21:17:20,888 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 21:17:20,888 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 21:17:20,888 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 21:17:20,888 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 21:17:20,888 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 21:17:20,889 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 21:17:20,889 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 21:17:20,889 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 21:17:20,889 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-13 21:17:20,889 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-13 21:17:20,889 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-13 21:17:20,890 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-13 21:17:20,890 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-13 21:17:20,890 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 21:17:20,890 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 21:17:20,890 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 21:17:20,890 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 21:17:20,890 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 21:17:20,891 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 21:17:20,891 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 21:17:20,891 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 21:17:20,891 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 21:17:20,891 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 21:17:20,891 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 21:17:20,891 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 21:17:20,892 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 21:17:20,892 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 21:17:20,892 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 21:17:20,892 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 21:17:20,892 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 21:17:20,892 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 21:17:20,892 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 21:17:20,893 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 21:17:20,893 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 21:17:20,893 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 21:17:20,893 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 21:17:20,893 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 21:17:20,893 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 21:17:20,894 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:17:20,894 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 21:17:20,894 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 21:17:20,894 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 21:17:20,894 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 21:17:20,894 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 21:17:20,894 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 21:17:20,895 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 21:17:20,895 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 21:17:20,895 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 21:17:20,895 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 21:17:20,895 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 21:17:20,895 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 21:17:20,896 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 21:17:20,896 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 21:17:20,896 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 21:17:20,896 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 21:17:20,896 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 21:17:20,896 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 21:17:20,897 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 21:17:20,897 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Encrypt [2019-10-13 21:17:20,897 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-13 21:17:20,897 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 21:17:20,897 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 21:17:20,897 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 21:17:20,898 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 21:17:20,898 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 21:17:20,898 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 21:17:20,898 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 21:17:20,898 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 21:17:20,898 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 21:17:20,898 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 21:17:20,899 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 21:17:20,899 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 21:17:20,899 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 21:17:20,899 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 21:17:20,899 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 21:17:20,899 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 21:17:20,900 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 21:17:20,900 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 21:17:20,900 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 21:17:20,900 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 21:17:20,900 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 21:17:20,900 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 21:17:20,900 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 21:17:20,901 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 21:17:20,901 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 21:17:20,901 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 21:17:20,901 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 21:17:20,901 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 21:17:20,901 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 21:17:20,901 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 21:17:20,902 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 21:17:20,902 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 21:17:20,902 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 21:17:20,902 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 21:17:20,902 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 21:17:20,902 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 21:17:20,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 21:17:20,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 21:17:20,903 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 21:17:20,903 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 21:17:20,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 21:17:20,903 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 21:17:20,903 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 21:17:20,903 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 21:17:20,904 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 21:17:20,904 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 21:17:20,904 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 21:17:20,904 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 21:17:20,904 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 21:17:20,904 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 21:17:20,904 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 21:17:20,905 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-13 21:17:20,905 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 21:17:20,905 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 21:17:20,905 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 21:17:20,905 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 21:17:20,905 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 21:17:20,905 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 21:17:20,906 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 21:17:20,906 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 21:17:20,906 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 21:17:20,906 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 21:17:20,906 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 21:17:20,906 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 21:17:20,906 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 21:17:20,907 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 21:17:20,907 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 21:17:20,907 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 21:17:20,907 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 21:17:20,907 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 21:17:20,907 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 21:17:20,908 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 21:17:20,908 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:17:20,908 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 21:17:20,908 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 21:17:20,908 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 21:17:20,909 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 21:17:20,909 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 21:17:20,909 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 21:17:20,909 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 21:17:20,909 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 21:17:20,909 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 21:17:20,910 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 21:17:20,910 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 21:17:20,910 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 21:17:20,910 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 21:17:20,910 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 21:17:20,911 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 21:17:20,911 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 21:17:20,911 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-13 21:17:20,911 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-13 21:17:20,911 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-13 21:17:20,911 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-13 21:17:20,912 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 21:17:20,912 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-13 21:17:20,912 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-13 21:17:20,912 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-13 21:17:20,912 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-13 21:17:20,912 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-13 21:17:20,913 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 21:17:20,913 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 21:17:20,913 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 21:17:20,913 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 21:17:20,913 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 21:17:20,913 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 21:17:20,914 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 21:17:20,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:17:20,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 21:17:20,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:17:23,204 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:17:23,204 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 21:17:23,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:17:23 BoogieIcfgContainer [2019-10-13 21:17:23,207 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:17:23,210 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:17:23,210 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:17:23,214 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:17:23,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:17:19" (1/3) ... [2019-10-13 21:17:23,216 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1aaa02d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:17:23, skipping insertion in model container [2019-10-13 21:17:23,216 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:20" (2/3) ... [2019-10-13 21:17:23,216 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1aaa02d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:17:23, skipping insertion in model container [2019-10-13 21:17:23,217 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:17:23" (3/3) ... [2019-10-13 21:17:23,219 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec6_product31.cil.c [2019-10-13 21:17:23,231 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:17:23,244 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:17:23,256 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:17:23,305 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:17:23,306 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:17:23,309 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:17:23,309 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:17:23,310 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:17:23,310 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:17:23,310 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:17:23,310 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:17:23,352 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states. [2019-10-13 21:17:23,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2019-10-13 21:17:23,395 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:23,399 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:23,401 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:23,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:23,410 INFO L82 PathProgramCache]: Analyzing trace with hash -1627872487, now seen corresponding path program 1 times [2019-10-13 21:17:23,421 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:23,421 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483239165] [2019-10-13 21:17:23,421 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:23,422 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:23,422 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:23,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:24,174 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-13 21:17:24,175 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483239165] [2019-10-13 21:17:24,176 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:24,176 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 21:17:24,176 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408776365] [2019-10-13 21:17:24,182 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 21:17:24,184 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:24,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 21:17:24,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:17:24,202 INFO L87 Difference]: Start difference. First operand 566 states. Second operand 2 states. [2019-10-13 21:17:24,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:24,278 INFO L93 Difference]: Finished difference Result 874 states and 1147 transitions. [2019-10-13 21:17:24,278 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 21:17:24,279 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 189 [2019-10-13 21:17:24,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:24,306 INFO L225 Difference]: With dead ends: 874 [2019-10-13 21:17:24,306 INFO L226 Difference]: Without dead ends: 543 [2019-10-13 21:17:24,314 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 21:17:24,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2019-10-13 21:17:24,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 543. [2019-10-13 21:17:24,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 543 states. [2019-10-13 21:17:24,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 717 transitions. [2019-10-13 21:17:24,437 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 717 transitions. Word has length 189 [2019-10-13 21:17:24,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:24,442 INFO L462 AbstractCegarLoop]: Abstraction has 543 states and 717 transitions. [2019-10-13 21:17:24,442 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 21:17:24,442 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 717 transitions. [2019-10-13 21:17:24,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2019-10-13 21:17:24,453 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:24,453 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:24,453 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:24,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:24,454 INFO L82 PathProgramCache]: Analyzing trace with hash -43680010, now seen corresponding path program 1 times [2019-10-13 21:17:24,455 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:24,455 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285456728] [2019-10-13 21:17:24,455 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:24,455 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:24,456 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:24,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:24,850 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-13 21:17:24,851 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285456728] [2019-10-13 21:17:24,851 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:24,851 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:17:24,852 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590467662] [2019-10-13 21:17:24,854 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:17:24,854 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:24,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:17:24,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:24,855 INFO L87 Difference]: Start difference. First operand 543 states and 717 transitions. Second operand 3 states. [2019-10-13 21:17:24,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:24,920 INFO L93 Difference]: Finished difference Result 857 states and 1114 transitions. [2019-10-13 21:17:24,921 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:17:24,921 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 190 [2019-10-13 21:17:24,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:24,929 INFO L225 Difference]: With dead ends: 857 [2019-10-13 21:17:24,929 INFO L226 Difference]: Without dead ends: 546 [2019-10-13 21:17:24,932 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 21:17:24,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states. [2019-10-13 21:17:24,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 545. [2019-10-13 21:17:24,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 545 states. [2019-10-13 21:17:24,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 719 transitions. [2019-10-13 21:17:24,980 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 719 transitions. Word has length 190 [2019-10-13 21:17:24,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:24,981 INFO L462 AbstractCegarLoop]: Abstraction has 545 states and 719 transitions. [2019-10-13 21:17:24,981 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:17:24,981 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 719 transitions. [2019-10-13 21:17:24,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2019-10-13 21:17:24,985 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:24,986 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:24,986 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:24,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:24,986 INFO L82 PathProgramCache]: Analyzing trace with hash -1696045406, now seen corresponding path program 1 times [2019-10-13 21:17:24,987 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:24,987 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724879843] [2019-10-13 21:17:24,987 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:24,987 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:24,987 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:25,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:25,200 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-13 21:17:25,200 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724879843] [2019-10-13 21:17:25,201 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:25,201 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:17:25,201 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119734364] [2019-10-13 21:17:25,204 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:17:25,206 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:25,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:17:25,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:25,207 INFO L87 Difference]: Start difference. First operand 545 states and 719 transitions. Second operand 3 states. [2019-10-13 21:17:25,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:25,255 INFO L93 Difference]: Finished difference Result 1066 states and 1436 transitions. [2019-10-13 21:17:25,255 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:17:25,256 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 196 [2019-10-13 21:17:25,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:25,264 INFO L225 Difference]: With dead ends: 1066 [2019-10-13 21:17:25,264 INFO L226 Difference]: Without dead ends: 586 [2019-10-13 21:17:25,266 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 21:17:25,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 586 states. [2019-10-13 21:17:25,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 586 to 585. [2019-10-13 21:17:25,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 585 states. [2019-10-13 21:17:25,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 788 transitions. [2019-10-13 21:17:25,308 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 788 transitions. Word has length 196 [2019-10-13 21:17:25,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:25,310 INFO L462 AbstractCegarLoop]: Abstraction has 585 states and 788 transitions. [2019-10-13 21:17:25,310 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:17:25,310 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 788 transitions. [2019-10-13 21:17:25,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2019-10-13 21:17:25,318 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:25,318 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:25,323 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:25,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:25,324 INFO L82 PathProgramCache]: Analyzing trace with hash -1296301565, now seen corresponding path program 1 times [2019-10-13 21:17:25,324 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:25,324 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706664368] [2019-10-13 21:17:25,325 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:25,325 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:25,326 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:25,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:25,836 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:17:25,837 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706664368] [2019-10-13 21:17:25,837 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:25,837 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-13 21:17:25,838 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970415624] [2019-10-13 21:17:25,839 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 21:17:25,839 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:25,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 21:17:25,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2019-10-13 21:17:25,840 INFO L87 Difference]: Start difference. First operand 585 states and 788 transitions. Second operand 11 states. [2019-10-13 21:17:31,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:31,140 INFO L93 Difference]: Finished difference Result 3072 states and 4085 transitions. [2019-10-13 21:17:31,141 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2019-10-13 21:17:31,141 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 197 [2019-10-13 21:17:31,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:31,156 INFO L225 Difference]: With dead ends: 3072 [2019-10-13 21:17:31,156 INFO L226 Difference]: Without dead ends: 2362 [2019-10-13 21:17:31,160 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=190, Invalid=802, Unknown=0, NotChecked=0, Total=992 [2019-10-13 21:17:31,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2362 states. [2019-10-13 21:17:31,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2362 to 2347. [2019-10-13 21:17:31,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2347 states. [2019-10-13 21:17:31,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2347 states to 2347 states and 3065 transitions. [2019-10-13 21:17:31,296 INFO L78 Accepts]: Start accepts. Automaton has 2347 states and 3065 transitions. Word has length 197 [2019-10-13 21:17:31,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:31,297 INFO L462 AbstractCegarLoop]: Abstraction has 2347 states and 3065 transitions. [2019-10-13 21:17:31,297 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-13 21:17:31,297 INFO L276 IsEmpty]: Start isEmpty. Operand 2347 states and 3065 transitions. [2019-10-13 21:17:31,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2019-10-13 21:17:31,303 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:31,304 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:31,304 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:31,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:31,305 INFO L82 PathProgramCache]: Analyzing trace with hash -1739210456, now seen corresponding path program 1 times [2019-10-13 21:17:31,305 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:31,305 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672215419] [2019-10-13 21:17:31,306 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:31,306 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:31,306 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:31,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:31,692 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:17:31,693 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672215419] [2019-10-13 21:17:31,693 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:31,694 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2019-10-13 21:17:31,694 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585230553] [2019-10-13 21:17:31,695 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-10-13 21:17:31,696 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:31,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-10-13 21:17:31,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2019-10-13 21:17:31,698 INFO L87 Difference]: Start difference. First operand 2347 states and 3065 transitions. Second operand 18 states. [2019-10-13 21:17:32,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:32,276 INFO L93 Difference]: Finished difference Result 4175 states and 5446 transitions. [2019-10-13 21:17:32,276 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-10-13 21:17:32,277 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 198 [2019-10-13 21:17:32,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:32,288 INFO L225 Difference]: With dead ends: 4175 [2019-10-13 21:17:32,288 INFO L226 Difference]: Without dead ends: 1888 [2019-10-13 21:17:32,295 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 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 21:17:32,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1888 states. [2019-10-13 21:17:32,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1888 to 1848. [2019-10-13 21:17:32,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1848 states. [2019-10-13 21:17:32,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1848 states to 1848 states and 2408 transitions. [2019-10-13 21:17:32,381 INFO L78 Accepts]: Start accepts. Automaton has 1848 states and 2408 transitions. Word has length 198 [2019-10-13 21:17:32,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:32,382 INFO L462 AbstractCegarLoop]: Abstraction has 1848 states and 2408 transitions. [2019-10-13 21:17:32,382 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-10-13 21:17:32,382 INFO L276 IsEmpty]: Start isEmpty. Operand 1848 states and 2408 transitions. [2019-10-13 21:17:32,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2019-10-13 21:17:32,387 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:32,387 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:32,387 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:32,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:32,388 INFO L82 PathProgramCache]: Analyzing trace with hash -1608111805, now seen corresponding path program 1 times [2019-10-13 21:17:32,388 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:32,388 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368295024] [2019-10-13 21:17:32,389 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:32,389 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:32,389 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:32,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:32,584 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:17:32,584 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368295024] [2019-10-13 21:17:32,585 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:32,585 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 21:17:32,585 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927447362] [2019-10-13 21:17:32,586 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 21:17:32,586 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:32,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 21:17:32,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 21:17:32,587 INFO L87 Difference]: Start difference. First operand 1848 states and 2408 transitions. Second operand 6 states. [2019-10-13 21:17:33,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:33,286 INFO L93 Difference]: Finished difference Result 5193 states and 6754 transitions. [2019-10-13 21:17:33,286 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 21:17:33,286 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 207 [2019-10-13 21:17:33,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:33,322 INFO L225 Difference]: With dead ends: 5193 [2019-10-13 21:17:33,323 INFO L226 Difference]: Without dead ends: 3687 [2019-10-13 21:17:33,334 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-13 21:17:33,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3687 states. [2019-10-13 21:17:33,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3687 to 3616. [2019-10-13 21:17:33,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3616 states. [2019-10-13 21:17:33,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3616 states to 3616 states and 4738 transitions. [2019-10-13 21:17:33,597 INFO L78 Accepts]: Start accepts. Automaton has 3616 states and 4738 transitions. Word has length 207 [2019-10-13 21:17:33,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:33,598 INFO L462 AbstractCegarLoop]: Abstraction has 3616 states and 4738 transitions. [2019-10-13 21:17:33,598 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 21:17:33,598 INFO L276 IsEmpty]: Start isEmpty. Operand 3616 states and 4738 transitions. [2019-10-13 21:17:33,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2019-10-13 21:17:33,607 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:33,608 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:33,608 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:33,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:33,609 INFO L82 PathProgramCache]: Analyzing trace with hash 529447440, now seen corresponding path program 1 times [2019-10-13 21:17:33,610 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:33,610 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439121033] [2019-10-13 21:17:33,610 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:33,611 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:33,611 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:33,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:33,947 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:17:33,947 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439121033] [2019-10-13 21:17:33,948 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:33,948 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-13 21:17:33,948 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526661128] [2019-10-13 21:17:33,949 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 21:17:33,949 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:33,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 21:17:33,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-10-13 21:17:33,950 INFO L87 Difference]: Start difference. First operand 3616 states and 4738 transitions. Second operand 11 states. [2019-10-13 21:17:34,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:34,442 INFO L93 Difference]: Finished difference Result 6651 states and 8619 transitions. [2019-10-13 21:17:34,443 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-13 21:17:34,443 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 208 [2019-10-13 21:17:34,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:34,472 INFO L225 Difference]: With dead ends: 6651 [2019-10-13 21:17:34,472 INFO L226 Difference]: Without dead ends: 3634 [2019-10-13 21:17:34,484 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2019-10-13 21:17:34,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3634 states. [2019-10-13 21:17:34,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3634 to 3604. [2019-10-13 21:17:34,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3604 states. [2019-10-13 21:17:34,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3604 states to 3604 states and 4712 transitions. [2019-10-13 21:17:34,681 INFO L78 Accepts]: Start accepts. Automaton has 3604 states and 4712 transitions. Word has length 208 [2019-10-13 21:17:34,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:34,682 INFO L462 AbstractCegarLoop]: Abstraction has 3604 states and 4712 transitions. [2019-10-13 21:17:34,682 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-13 21:17:34,683 INFO L276 IsEmpty]: Start isEmpty. Operand 3604 states and 4712 transitions. [2019-10-13 21:17:34,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2019-10-13 21:17:34,689 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:34,689 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:34,690 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:34,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:34,690 INFO L82 PathProgramCache]: Analyzing trace with hash 1116223559, now seen corresponding path program 1 times [2019-10-13 21:17:34,691 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:34,691 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362313883] [2019-10-13 21:17:34,691 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:34,691 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:34,692 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:34,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:34,986 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:17:34,986 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362313883] [2019-10-13 21:17:34,987 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:34,987 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 21:17:34,987 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156329401] [2019-10-13 21:17:34,988 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 21:17:34,988 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:34,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 21:17:34,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 21:17:34,989 INFO L87 Difference]: Start difference. First operand 3604 states and 4712 transitions. Second operand 5 states. [2019-10-13 21:17:36,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:36,543 INFO L93 Difference]: Finished difference Result 12681 states and 16577 transitions. [2019-10-13 21:17:36,544 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 21:17:36,544 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 208 [2019-10-13 21:17:36,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:36,601 INFO L225 Difference]: With dead ends: 12681 [2019-10-13 21:17:36,601 INFO L226 Difference]: Without dead ends: 8562 [2019-10-13 21:17:36,618 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 21:17:36,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8562 states. [2019-10-13 21:17:37,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8562 to 8282. [2019-10-13 21:17:37,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8282 states. [2019-10-13 21:17:37,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8282 states to 8282 states and 10870 transitions. [2019-10-13 21:17:37,128 INFO L78 Accepts]: Start accepts. Automaton has 8282 states and 10870 transitions. Word has length 208 [2019-10-13 21:17:37,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:37,129 INFO L462 AbstractCegarLoop]: Abstraction has 8282 states and 10870 transitions. [2019-10-13 21:17:37,130 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 21:17:37,130 INFO L276 IsEmpty]: Start isEmpty. Operand 8282 states and 10870 transitions. [2019-10-13 21:17:37,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2019-10-13 21:17:37,143 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:37,144 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:37,144 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:37,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:37,145 INFO L82 PathProgramCache]: Analyzing trace with hash 416033079, now seen corresponding path program 1 times [2019-10-13 21:17:37,145 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:37,145 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220938381] [2019-10-13 21:17:37,145 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:37,146 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:37,146 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:37,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:37,310 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-13 21:17:37,310 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220938381] [2019-10-13 21:17:37,311 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:37,311 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:17:37,311 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148935582] [2019-10-13 21:17:37,312 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:17:37,312 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:37,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:17:37,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:37,313 INFO L87 Difference]: Start difference. First operand 8282 states and 10870 transitions. Second operand 3 states. [2019-10-13 21:17:37,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:37,642 INFO L93 Difference]: Finished difference Result 16827 states and 22276 transitions. [2019-10-13 21:17:37,643 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:17:37,643 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 237 [2019-10-13 21:17:37,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:37,710 INFO L225 Difference]: With dead ends: 16827 [2019-10-13 21:17:37,710 INFO L226 Difference]: Without dead ends: 8610 [2019-10-13 21:17:37,754 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 21:17:37,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8610 states. [2019-10-13 21:17:38,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8610 to 8606. [2019-10-13 21:17:38,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8606 states. [2019-10-13 21:17:38,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8606 states to 8606 states and 11467 transitions. [2019-10-13 21:17:38,399 INFO L78 Accepts]: Start accepts. Automaton has 8606 states and 11467 transitions. Word has length 237 [2019-10-13 21:17:38,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:38,400 INFO L462 AbstractCegarLoop]: Abstraction has 8606 states and 11467 transitions. [2019-10-13 21:17:38,400 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:17:38,400 INFO L276 IsEmpty]: Start isEmpty. Operand 8606 states and 11467 transitions. [2019-10-13 21:17:38,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2019-10-13 21:17:38,415 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:38,415 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:38,416 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:38,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:38,416 INFO L82 PathProgramCache]: Analyzing trace with hash 636431702, now seen corresponding path program 1 times [2019-10-13 21:17:38,417 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:38,417 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922194950] [2019-10-13 21:17:38,417 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:38,417 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:38,417 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:38,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:38,579 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-13 21:17:38,579 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922194950] [2019-10-13 21:17:38,579 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:38,580 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:17:38,580 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336027847] [2019-10-13 21:17:38,581 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:17:38,581 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:38,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:17:38,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:38,582 INFO L87 Difference]: Start difference. First operand 8606 states and 11467 transitions. Second operand 3 states. [2019-10-13 21:17:38,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:38,961 INFO L93 Difference]: Finished difference Result 17759 states and 24003 transitions. [2019-10-13 21:17:38,961 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:17:38,962 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 238 [2019-10-13 21:17:38,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:39,039 INFO L225 Difference]: With dead ends: 17759 [2019-10-13 21:17:39,042 INFO L226 Difference]: Without dead ends: 9218 [2019-10-13 21:17:39,080 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 21:17:39,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9218 states. [2019-10-13 21:17:40,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9218 to 9214. [2019-10-13 21:17:40,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9214 states. [2019-10-13 21:17:40,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9214 states to 9214 states and 12589 transitions. [2019-10-13 21:17:40,158 INFO L78 Accepts]: Start accepts. Automaton has 9214 states and 12589 transitions. Word has length 238 [2019-10-13 21:17:40,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:40,162 INFO L462 AbstractCegarLoop]: Abstraction has 9214 states and 12589 transitions. [2019-10-13 21:17:40,162 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:17:40,163 INFO L276 IsEmpty]: Start isEmpty. Operand 9214 states and 12589 transitions. [2019-10-13 21:17:40,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2019-10-13 21:17:40,192 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:40,192 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:40,193 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:40,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:40,194 INFO L82 PathProgramCache]: Analyzing trace with hash -2128411399, now seen corresponding path program 1 times [2019-10-13 21:17:40,194 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:40,194 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173309844] [2019-10-13 21:17:40,194 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:40,195 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:40,195 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:40,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:40,453 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-13 21:17:40,454 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173309844] [2019-10-13 21:17:40,454 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:40,454 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 21:17:40,455 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980232198] [2019-10-13 21:17:40,455 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 21:17:40,456 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:40,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 21:17:40,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-13 21:17:40,456 INFO L87 Difference]: Start difference. First operand 9214 states and 12589 transitions. Second operand 8 states. [2019-10-13 21:17:45,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:45,969 INFO L93 Difference]: Finished difference Result 28008 states and 39757 transitions. [2019-10-13 21:17:45,970 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-13 21:17:45,970 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 239 [2019-10-13 21:17:45,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:46,062 INFO L225 Difference]: With dead ends: 28008 [2019-10-13 21:17:46,062 INFO L226 Difference]: Without dead ends: 18859 [2019-10-13 21:17:46,101 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2019-10-13 21:17:46,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18859 states. [2019-10-13 21:17:46,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18859 to 11398. [2019-10-13 21:17:46,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11398 states. [2019-10-13 21:17:46,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11398 states to 11398 states and 16993 transitions. [2019-10-13 21:17:46,793 INFO L78 Accepts]: Start accepts. Automaton has 11398 states and 16993 transitions. Word has length 239 [2019-10-13 21:17:46,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:46,794 INFO L462 AbstractCegarLoop]: Abstraction has 11398 states and 16993 transitions. [2019-10-13 21:17:46,794 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 21:17:46,794 INFO L276 IsEmpty]: Start isEmpty. Operand 11398 states and 16993 transitions. [2019-10-13 21:17:46,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2019-10-13 21:17:46,834 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:46,834 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:46,835 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:46,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:46,835 INFO L82 PathProgramCache]: Analyzing trace with hash -225684679, now seen corresponding path program 1 times [2019-10-13 21:17:46,835 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:46,835 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725489181] [2019-10-13 21:17:46,836 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:46,836 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:46,836 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:46,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:47,069 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-10-13 21:17:47,070 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725489181] [2019-10-13 21:17:47,070 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:47,070 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 21:17:47,071 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389631370] [2019-10-13 21:17:47,071 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 21:17:47,072 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:47,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 21:17:47,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-13 21:17:47,072 INFO L87 Difference]: Start difference. First operand 11398 states and 16993 transitions. Second operand 8 states.