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_spec7_product33.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:16:55,906 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:16:55,908 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:16:55,921 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:16:55,922 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:16:55,923 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:16:55,924 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:16:55,926 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:16:55,928 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:16:55,929 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:16:55,930 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:16:55,931 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:16:55,931 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:16:55,933 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:16:55,934 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:16:55,935 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:16:55,936 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:16:55,936 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:16:55,938 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:16:55,940 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:16:55,941 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:16:55,943 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:16:55,944 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:16:55,944 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:16:55,947 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:16:55,947 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:16:55,947 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:16:55,948 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:16:55,949 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:16:55,950 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:16:55,950 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:16:55,951 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:16:55,951 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:16:55,952 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:16:55,953 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:16:55,953 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:16:55,954 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:16:55,954 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:16:55,955 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:16:55,955 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:16:55,956 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:16:55,957 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 01:16:55,978 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:16:55,978 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:16:55,981 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:16:55,981 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:16:55,981 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:16:55,981 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:16:55,981 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:16:55,982 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:16:55,982 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:16:55,982 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:16:55,983 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:16:55,983 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:16:55,984 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:16:55,984 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:16:55,984 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:16:55,984 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:16:55,984 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:16:55,985 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:16:55,985 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:16:55,985 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:16:55,987 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:16:55,987 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:16:55,987 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:16:55,988 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:16:55,988 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:16:55,988 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:16:55,991 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:16:55,992 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:16:55,992 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 [2019-10-15 01:16:56,263 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:16:56,275 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:16:56,279 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:16:56,280 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:16:56,281 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:16:56,281 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec7_product33.cil.c [2019-10-15 01:16:56,366 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f914e1b4/b6dba24c5f6d4bdaa2a4741aae53ccea/FLAG62db2dce7 [2019-10-15 01:16:57,084 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:16:57,085 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec7_product33.cil.c [2019-10-15 01:16:57,105 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f914e1b4/b6dba24c5f6d4bdaa2a4741aae53ccea/FLAG62db2dce7 [2019-10-15 01:16:57,229 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f914e1b4/b6dba24c5f6d4bdaa2a4741aae53ccea [2019-10-15 01:16:57,241 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:16:57,243 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:16:57,243 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:16:57,244 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:16:57,246 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:16:57,247 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:16:57" (1/1) ... [2019-10-15 01:16:57,250 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3044d039 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:57, skipping insertion in model container [2019-10-15 01:16:57,251 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:16:57" (1/1) ... [2019-10-15 01:16:57,258 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:16:57,335 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:16:58,131 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:16:58,147 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:16:58,302 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:16:58,404 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:16:58,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:58 WrapperNode [2019-10-15 01:16:58,405 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:16:58,406 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:16:58,406 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:16:58,406 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:16:58,422 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:58" (1/1) ... [2019-10-15 01:16:58,423 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:58" (1/1) ... [2019-10-15 01:16:58,489 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:58" (1/1) ... [2019-10-15 01:16:58,490 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:58" (1/1) ... [2019-10-15 01:16:58,549 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:58" (1/1) ... [2019-10-15 01:16:58,580 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:58" (1/1) ... [2019-10-15 01:16:58,592 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:58" (1/1) ... [2019-10-15 01:16:58,610 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:16:58,611 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:16:58,611 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:16:58,611 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:16:58,613 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:58" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:16:58,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:16:58,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:16:58,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 01:16:58,716 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 01:16:58,716 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AutoResponder [2019-10-15 01:16:58,718 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-15 01:16:58,718 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 01:16:58,718 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 01:16:58,718 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 01:16:58,719 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 01:16:58,719 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 01:16:58,720 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 01:16:58,720 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 01:16:58,721 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 01:16:58,722 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 01:16:58,722 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 01:16:58,725 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 01:16:58,725 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptVerify_spec__1 [2019-10-15 01:16:58,725 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 01:16:58,726 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 01:16:58,726 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 01:16:58,726 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 01:16:58,727 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 01:16:58,727 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 01:16:58,727 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 01:16:58,727 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 01:16:58,727 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 01:16:58,728 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:16:58,728 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 01:16:58,728 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 01:16:58,728 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 01:16:58,728 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 01:16:58,728 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 01:16:58,728 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 01:16:58,729 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 01:16:58,729 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 01:16:58,729 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 01:16:58,730 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-15 01:16:58,730 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-15 01:16:58,730 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 01:16:58,730 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 01:16:58,731 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 01:16:58,731 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 01:16:58,731 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 01:16:58,731 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 01:16:58,731 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 01:16:58,732 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 01:16:58,732 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 01:16:58,732 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 01:16:58,732 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 01:16:58,732 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 01:16:58,733 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 01:16:58,733 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 01:16:58,733 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 01:16:58,733 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 01:16:58,733 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 01:16:58,734 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 01:16:58,734 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 01:16:58,734 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 01:16:58,734 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 01:16:58,734 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 01:16:58,734 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 01:16:58,735 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 01:16:58,735 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 01:16:58,736 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 01:16:58,736 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 01:16:58,736 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 01:16:58,736 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 01:16:58,736 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 01:16:58,736 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 01:16:58,737 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 01:16:58,737 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 01:16:58,737 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 01:16:58,738 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 01:16:58,738 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 01:16:58,738 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 01:16:58,738 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-15 01:16:58,738 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 01:16:58,738 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 01:16:58,739 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-15 01:16:58,739 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-15 01:16:58,739 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-15 01:16:58,740 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-15 01:16:58,740 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 01:16:58,740 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 01:16:58,741 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 01:16:58,741 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 01:16:58,742 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 01:16:58,742 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 01:16:58,742 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 01:16:58,742 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 01:16:58,742 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 01:16:58,743 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-15 01:16:58,743 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-15 01:16:58,743 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-15 01:16:58,743 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-15 01:16:58,743 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 01:16:58,743 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 01:16:58,743 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 01:16:58,744 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 01:16:58,744 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 01:16:58,744 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 01:16:58,744 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 01:16:58,744 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 01:16:58,744 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 01:16:58,744 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 01:16:58,745 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 01:16:58,745 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 01:16:58,745 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 01:16:58,745 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 01:16:58,745 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 01:16:58,745 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 01:16:58,746 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 01:16:58,746 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 01:16:58,746 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 01:16:58,746 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 01:16:58,746 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 01:16:58,747 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 01:16:58,747 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:16:58,747 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:16:58,748 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 01:16:58,748 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 01:16:58,748 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 01:16:58,748 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 01:16:58,749 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 01:16:58,749 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 01:16:58,749 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 01:16:58,749 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 01:16:58,749 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 01:16:58,750 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 01:16:58,750 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 01:16:58,751 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 01:16:58,751 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 01:16:58,751 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 01:16:58,751 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 01:16:58,751 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 01:16:58,752 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:16:58,755 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AutoResponder [2019-10-15 01:16:58,755 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-15 01:16:58,756 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 01:16:58,756 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 01:16:58,757 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:16:58,757 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:16:58,757 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 01:16:58,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:16:58,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:16:58,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:16:58,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:16:58,764 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 01:16:58,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:16:58,764 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 01:16:58,765 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 01:16:58,765 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:16:58,765 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 01:16:58,765 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 01:16:58,765 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 01:16:58,765 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 01:16:58,765 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptVerify_spec__1 [2019-10-15 01:16:58,766 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 01:16:58,766 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 01:16:58,766 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 01:16:58,766 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 01:16:58,768 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 01:16:58,768 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 01:16:58,768 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 01:16:58,768 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 01:16:58,768 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 01:16:58,768 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 01:16:58,769 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 01:16:58,769 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 01:16:58,769 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 01:16:58,769 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 01:16:58,769 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 01:16:58,769 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 01:16:58,769 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 01:16:58,770 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 01:16:58,770 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 01:16:58,770 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 01:16:58,770 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 01:16:58,770 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 01:16:58,770 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 01:16:58,770 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 01:16:58,771 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 01:16:58,771 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 01:16:58,771 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:16:58,771 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 01:16:58,771 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 01:16:58,771 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 01:16:58,772 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 01:16:58,772 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 01:16:58,772 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 01:16:58,773 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 01:16:58,773 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 01:16:58,773 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 01:16:58,773 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-15 01:16:58,773 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-15 01:16:58,773 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 01:16:58,774 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 01:16:58,774 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 01:16:58,774 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 01:16:58,774 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 01:16:58,774 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 01:16:58,774 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 01:16:58,775 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 01:16:58,775 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 01:16:58,775 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 01:16:58,775 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 01:16:58,775 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 01:16:58,775 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 01:16:58,776 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 01:16:58,776 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 01:16:58,776 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 01:16:58,776 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 01:16:58,776 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 01:16:58,776 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 01:16:58,777 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 01:16:58,777 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 01:16:58,777 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 01:16:58,777 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 01:16:58,777 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 01:16:58,777 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 01:16:58,778 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 01:16:58,778 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 01:16:58,778 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 01:16:58,778 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 01:16:58,778 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 01:16:58,778 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 01:16:58,779 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 01:16:58,779 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 01:16:58,779 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 01:16:58,779 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 01:16:58,779 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-15 01:16:58,779 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-15 01:16:58,780 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-15 01:16:58,780 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-15 01:16:58,780 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 01:16:58,780 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-15 01:16:58,780 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-15 01:16:58,780 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-15 01:16:58,780 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-15 01:16:58,781 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-15 01:16:58,781 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 01:16:58,781 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 01:16:58,781 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 01:16:58,781 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 01:16:58,781 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 01:16:58,782 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 01:16:58,782 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 01:16:58,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:16:58,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 01:16:58,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:17:01,029 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:17:01,029 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 01:17:01,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:17:01 BoogieIcfgContainer [2019-10-15 01:17:01,031 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:17:01,034 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:17:01,035 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:17:01,038 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:17:01,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:16:57" (1/3) ... [2019-10-15 01:17:01,040 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2815a606 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:17:01, skipping insertion in model container [2019-10-15 01:17:01,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:58" (2/3) ... [2019-10-15 01:17:01,040 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2815a606 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:17:01, skipping insertion in model container [2019-10-15 01:17:01,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:17:01" (3/3) ... [2019-10-15 01:17:01,044 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec7_product33.cil.c [2019-10-15 01:17:01,057 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:17:01,069 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:17:01,081 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:17:01,113 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:17:01,113 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:17:01,113 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:17:01,113 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:17:01,113 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:17:01,113 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:17:01,114 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:17:01,114 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:17:01,145 INFO L276 IsEmpty]: Start isEmpty. Operand 586 states. [2019-10-15 01:17:01,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2019-10-15 01:17:01,167 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:01,168 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] [2019-10-15 01:17:01,170 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:01,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:01,176 INFO L82 PathProgramCache]: Analyzing trace with hash -1628617347, now seen corresponding path program 1 times [2019-10-15 01:17:01,186 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:01,186 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929345230] [2019-10-15 01:17:01,187 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:01,187 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:01,187 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:01,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:01,930 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:17:01,931 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929345230] [2019-10-15 01:17:01,933 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:01,933 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 01:17:01,934 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299594936] [2019-10-15 01:17:01,942 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:17:01,944 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:01,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:17:01,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:17:01,964 INFO L87 Difference]: Start difference. First operand 586 states. Second operand 2 states. [2019-10-15 01:17:02,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:02,064 INFO L93 Difference]: Finished difference Result 903 states and 1187 transitions. [2019-10-15 01:17:02,064 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:17:02,068 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 182 [2019-10-15 01:17:02,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:02,104 INFO L225 Difference]: With dead ends: 903 [2019-10-15 01:17:02,104 INFO L226 Difference]: Without dead ends: 563 [2019-10-15 01:17:02,111 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:17:02,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2019-10-15 01:17:02,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 563. [2019-10-15 01:17:02,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 563 states. [2019-10-15 01:17:02,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 743 transitions. [2019-10-15 01:17:02,209 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 743 transitions. Word has length 182 [2019-10-15 01:17:02,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:02,212 INFO L462 AbstractCegarLoop]: Abstraction has 563 states and 743 transitions. [2019-10-15 01:17:02,212 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:17:02,212 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 743 transitions. [2019-10-15 01:17:02,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2019-10-15 01:17:02,218 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:02,218 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] [2019-10-15 01:17:02,219 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:02,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:02,219 INFO L82 PathProgramCache]: Analyzing trace with hash -994536202, now seen corresponding path program 1 times [2019-10-15 01:17:02,220 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:02,220 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351797983] [2019-10-15 01:17:02,220 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:02,220 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:02,220 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:02,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:02,473 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:17:02,474 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351797983] [2019-10-15 01:17:02,474 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:02,474 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:17:02,475 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719821544] [2019-10-15 01:17:02,483 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:17:02,484 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:02,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:17:02,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:17:02,485 INFO L87 Difference]: Start difference. First operand 563 states and 743 transitions. Second operand 3 states. [2019-10-15 01:17:02,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:02,557 INFO L93 Difference]: Finished difference Result 886 states and 1152 transitions. [2019-10-15 01:17:02,557 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:17:02,557 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 183 [2019-10-15 01:17:02,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:02,563 INFO L225 Difference]: With dead ends: 886 [2019-10-15 01:17:02,563 INFO L226 Difference]: Without dead ends: 566 [2019-10-15 01:17:02,566 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:17:02,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2019-10-15 01:17:02,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 565. [2019-10-15 01:17:02,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 565 states. [2019-10-15 01:17:02,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 745 transitions. [2019-10-15 01:17:02,614 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 745 transitions. Word has length 183 [2019-10-15 01:17:02,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:02,615 INFO L462 AbstractCegarLoop]: Abstraction has 565 states and 745 transitions. [2019-10-15 01:17:02,615 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:17:02,615 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 745 transitions. [2019-10-15 01:17:02,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2019-10-15 01:17:02,619 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:02,619 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] [2019-10-15 01:17:02,620 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:02,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:02,620 INFO L82 PathProgramCache]: Analyzing trace with hash 1125503284, now seen corresponding path program 1 times [2019-10-15 01:17:02,620 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:02,620 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880878058] [2019-10-15 01:17:02,621 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:02,621 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:02,621 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:02,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:02,805 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:17:02,805 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880878058] [2019-10-15 01:17:02,806 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:02,806 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:17:02,806 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278673485] [2019-10-15 01:17:02,808 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:17:02,811 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:02,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:17:02,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:17:02,812 INFO L87 Difference]: Start difference. First operand 565 states and 745 transitions. Second operand 3 states. [2019-10-15 01:17:02,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:02,878 INFO L93 Difference]: Finished difference Result 1108 states and 1491 transitions. [2019-10-15 01:17:02,878 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:17:02,879 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 195 [2019-10-15 01:17:02,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:02,887 INFO L225 Difference]: With dead ends: 1108 [2019-10-15 01:17:02,888 INFO L226 Difference]: Without dead ends: 608 [2019-10-15 01:17:02,890 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:17:02,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2019-10-15 01:17:02,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 607. [2019-10-15 01:17:02,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 607 states. [2019-10-15 01:17:02,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 817 transitions. [2019-10-15 01:17:02,934 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 817 transitions. Word has length 195 [2019-10-15 01:17:02,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:02,935 INFO L462 AbstractCegarLoop]: Abstraction has 607 states and 817 transitions. [2019-10-15 01:17:02,935 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:17:02,935 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 817 transitions. [2019-10-15 01:17:02,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2019-10-15 01:17:02,942 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:02,943 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] [2019-10-15 01:17:02,943 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:02,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:02,943 INFO L82 PathProgramCache]: Analyzing trace with hash -287022915, now seen corresponding path program 1 times [2019-10-15 01:17:02,944 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:02,946 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744815721] [2019-10-15 01:17:02,947 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:02,947 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:02,947 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:03,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:03,200 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:17:03,200 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744815721] [2019-10-15 01:17:03,200 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:03,201 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:17:03,201 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748375885] [2019-10-15 01:17:03,202 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:17:03,202 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:03,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:17:03,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:17:03,202 INFO L87 Difference]: Start difference. First operand 607 states and 817 transitions. Second operand 3 states. [2019-10-15 01:17:03,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:03,248 INFO L93 Difference]: Finished difference Result 1231 states and 1702 transitions. [2019-10-15 01:17:03,248 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:17:03,248 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 196 [2019-10-15 01:17:03,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:03,258 INFO L225 Difference]: With dead ends: 1231 [2019-10-15 01:17:03,258 INFO L226 Difference]: Without dead ends: 689 [2019-10-15 01:17:03,261 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:17:03,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 689 states. [2019-10-15 01:17:03,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 689 to 688. [2019-10-15 01:17:03,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 688 states. [2019-10-15 01:17:03,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 955 transitions. [2019-10-15 01:17:03,315 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 955 transitions. Word has length 196 [2019-10-15 01:17:03,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:03,316 INFO L462 AbstractCegarLoop]: Abstraction has 688 states and 955 transitions. [2019-10-15 01:17:03,316 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:17:03,316 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 955 transitions. [2019-10-15 01:17:03,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2019-10-15 01:17:03,322 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:03,322 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] [2019-10-15 01:17:03,323 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:03,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:03,323 INFO L82 PathProgramCache]: Analyzing trace with hash -2143849423, now seen corresponding path program 1 times [2019-10-15 01:17:03,324 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:03,325 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238209133] [2019-10-15 01:17:03,325 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:03,325 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:03,326 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:03,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:03,876 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2019-10-15 01:17:03,877 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238209133] [2019-10-15 01:17:03,877 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:03,878 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-10-15 01:17:03,878 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727963863] [2019-10-15 01:17:03,879 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-10-15 01:17:03,879 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:03,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-10-15 01:17:03,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2019-10-15 01:17:03,881 INFO L87 Difference]: Start difference. First operand 688 states and 955 transitions. Second operand 19 states. [2019-10-15 01:17:09,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:09,003 INFO L93 Difference]: Finished difference Result 2330 states and 3219 transitions. [2019-10-15 01:17:09,003 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2019-10-15 01:17:09,004 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 199 [2019-10-15 01:17:09,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:09,023 INFO L225 Difference]: With dead ends: 2330 [2019-10-15 01:17:09,023 INFO L226 Difference]: Without dead ends: 2023 [2019-10-15 01:17:09,027 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 708 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=287, Invalid=2683, Unknown=0, NotChecked=0, Total=2970 [2019-10-15 01:17:09,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2023 states. [2019-10-15 01:17:09,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2023 to 1986. [2019-10-15 01:17:09,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1986 states. [2019-10-15 01:17:09,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1986 states to 1986 states and 2762 transitions. [2019-10-15 01:17:09,146 INFO L78 Accepts]: Start accepts. Automaton has 1986 states and 2762 transitions. Word has length 199 [2019-10-15 01:17:09,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:09,149 INFO L462 AbstractCegarLoop]: Abstraction has 1986 states and 2762 transitions. [2019-10-15 01:17:09,149 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-10-15 01:17:09,149 INFO L276 IsEmpty]: Start isEmpty. Operand 1986 states and 2762 transitions. [2019-10-15 01:17:09,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2019-10-15 01:17:09,156 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:09,156 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:17:09,156 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:09,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:09,157 INFO L82 PathProgramCache]: Analyzing trace with hash -1573247763, now seen corresponding path program 1 times [2019-10-15 01:17:09,157 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:09,157 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103491255] [2019-10-15 01:17:09,157 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:09,157 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:09,158 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:09,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:09,544 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2019-10-15 01:17:09,545 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103491255] [2019-10-15 01:17:09,545 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:09,546 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2019-10-15 01:17:09,546 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718938205] [2019-10-15 01:17:09,546 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-10-15 01:17:09,547 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:09,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-10-15 01:17:09,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2019-10-15 01:17:09,548 INFO L87 Difference]: Start difference. First operand 1986 states and 2762 transitions. Second operand 15 states. [2019-10-15 01:17:13,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:13,526 INFO L93 Difference]: Finished difference Result 3367 states and 4617 transitions. [2019-10-15 01:17:13,526 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2019-10-15 01:17:13,526 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 200 [2019-10-15 01:17:13,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:13,540 INFO L225 Difference]: With dead ends: 3367 [2019-10-15 01:17:13,540 INFO L226 Difference]: Without dead ends: 2088 [2019-10-15 01:17:13,545 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 513 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=229, Invalid=1933, Unknown=0, NotChecked=0, Total=2162 [2019-10-15 01:17:13,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2088 states. [2019-10-15 01:17:13,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2088 to 2056. [2019-10-15 01:17:13,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2056 states. [2019-10-15 01:17:13,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2056 states to 2056 states and 2876 transitions. [2019-10-15 01:17:13,667 INFO L78 Accepts]: Start accepts. Automaton has 2056 states and 2876 transitions. Word has length 200 [2019-10-15 01:17:13,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:13,668 INFO L462 AbstractCegarLoop]: Abstraction has 2056 states and 2876 transitions. [2019-10-15 01:17:13,668 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-10-15 01:17:13,668 INFO L276 IsEmpty]: Start isEmpty. Operand 2056 states and 2876 transitions. [2019-10-15 01:17:13,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2019-10-15 01:17:13,675 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:13,676 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-15 01:17:13,680 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:13,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:13,681 INFO L82 PathProgramCache]: Analyzing trace with hash -374646510, now seen corresponding path program 1 times [2019-10-15 01:17:13,681 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:13,681 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511520047] [2019-10-15 01:17:13,682 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:13,682 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:13,682 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:13,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:13,942 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2019-10-15 01:17:13,942 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511520047] [2019-10-15 01:17:13,942 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:13,943 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 01:17:13,943 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494222587] [2019-10-15 01:17:13,945 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:17:13,945 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:13,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:17:13,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:17:13,946 INFO L87 Difference]: Start difference. First operand 2056 states and 2876 transitions. Second operand 5 states. [2019-10-15 01:17:14,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:14,048 INFO L93 Difference]: Finished difference Result 3063 states and 4194 transitions. [2019-10-15 01:17:14,049 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 01:17:14,049 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 203 [2019-10-15 01:17:14,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:14,060 INFO L225 Difference]: With dead ends: 3063 [2019-10-15 01:17:14,060 INFO L226 Difference]: Without dead ends: 1699 [2019-10-15 01:17:14,064 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:17:14,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1699 states. [2019-10-15 01:17:14,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1699 to 1699. [2019-10-15 01:17:14,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1699 states. [2019-10-15 01:17:14,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1699 states to 1699 states and 2390 transitions. [2019-10-15 01:17:14,150 INFO L78 Accepts]: Start accepts. Automaton has 1699 states and 2390 transitions. Word has length 203 [2019-10-15 01:17:14,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:14,151 INFO L462 AbstractCegarLoop]: Abstraction has 1699 states and 2390 transitions. [2019-10-15 01:17:14,151 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:17:14,151 INFO L276 IsEmpty]: Start isEmpty. Operand 1699 states and 2390 transitions. [2019-10-15 01:17:14,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2019-10-15 01:17:14,157 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:14,157 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:17:14,157 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:14,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:14,158 INFO L82 PathProgramCache]: Analyzing trace with hash -673245661, now seen corresponding path program 1 times [2019-10-15 01:17:14,158 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:14,158 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893690164] [2019-10-15 01:17:14,158 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:14,159 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:14,159 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:14,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:14,424 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2019-10-15 01:17:14,425 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893690164] [2019-10-15 01:17:14,425 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:14,425 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2019-10-15 01:17:14,425 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586549145] [2019-10-15 01:17:14,426 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-15 01:17:14,426 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:14,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-15 01:17:14,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2019-10-15 01:17:14,427 INFO L87 Difference]: Start difference. First operand 1699 states and 2390 transitions. Second operand 16 states. [2019-10-15 01:17:14,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:14,812 INFO L93 Difference]: Finished difference Result 2778 states and 3824 transitions. [2019-10-15 01:17:14,812 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-15 01:17:14,812 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 200 [2019-10-15 01:17:14,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:14,827 INFO L225 Difference]: With dead ends: 2778 [2019-10-15 01:17:14,827 INFO L226 Difference]: Without dead ends: 1751 [2019-10-15 01:17:14,831 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2019-10-15 01:17:14,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1751 states. [2019-10-15 01:17:14,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1751 to 1733. [2019-10-15 01:17:14,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1733 states. [2019-10-15 01:17:14,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1733 states to 1733 states and 2434 transitions. [2019-10-15 01:17:14,907 INFO L78 Accepts]: Start accepts. Automaton has 1733 states and 2434 transitions. Word has length 200 [2019-10-15 01:17:14,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:14,908 INFO L462 AbstractCegarLoop]: Abstraction has 1733 states and 2434 transitions. [2019-10-15 01:17:14,908 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-10-15 01:17:14,908 INFO L276 IsEmpty]: Start isEmpty. Operand 1733 states and 2434 transitions. [2019-10-15 01:17:14,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2019-10-15 01:17:14,914 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:14,914 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] [2019-10-15 01:17:14,915 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:14,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:14,915 INFO L82 PathProgramCache]: Analyzing trace with hash 307966101, now seen corresponding path program 1 times [2019-10-15 01:17:14,915 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:14,915 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021740642] [2019-10-15 01:17:14,916 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:14,916 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:14,916 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:14,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:15,179 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:17:15,179 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021740642] [2019-10-15 01:17:15,180 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:15,180 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 01:17:15,180 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805944586] [2019-10-15 01:17:15,181 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:17:15,181 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:15,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:17:15,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:17:15,182 INFO L87 Difference]: Start difference. First operand 1733 states and 2434 transitions. Second operand 5 states. [2019-10-15 01:17:16,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:16,475 INFO L93 Difference]: Finished difference Result 4445 states and 6155 transitions. [2019-10-15 01:17:16,475 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:17:16,475 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 200 [2019-10-15 01:17:16,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:16,501 INFO L225 Difference]: With dead ends: 4445 [2019-10-15 01:17:16,501 INFO L226 Difference]: Without dead ends: 3755 [2019-10-15 01:17:16,506 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 [2019-10-15 01:17:16,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3755 states. [2019-10-15 01:17:16,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3755 to 3724. [2019-10-15 01:17:16,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3724 states. [2019-10-15 01:17:16,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3724 states to 3724 states and 5177 transitions. [2019-10-15 01:17:16,684 INFO L78 Accepts]: Start accepts. Automaton has 3724 states and 5177 transitions. Word has length 200 [2019-10-15 01:17:16,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:16,685 INFO L462 AbstractCegarLoop]: Abstraction has 3724 states and 5177 transitions. [2019-10-15 01:17:16,685 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:17:16,685 INFO L276 IsEmpty]: Start isEmpty. Operand 3724 states and 5177 transitions. [2019-10-15 01:17:16,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2019-10-15 01:17:16,693 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:16,693 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] [2019-10-15 01:17:16,694 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:16,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:16,694 INFO L82 PathProgramCache]: Analyzing trace with hash 328303476, now seen corresponding path program 1 times [2019-10-15 01:17:16,694 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:16,694 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700411772] [2019-10-15 01:17:16,695 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:16,695 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:16,695 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:16,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:16,889 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:17:16,889 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700411772] [2019-10-15 01:17:16,890 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:16,890 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 01:17:16,890 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695692872] [2019-10-15 01:17:16,891 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 01:17:16,891 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:16,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 01:17:16,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 01:17:16,891 INFO L87 Difference]: Start difference. First operand 3724 states and 5177 transitions. Second operand 7 states. [2019-10-15 01:17:19,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:19,344 INFO L93 Difference]: Finished difference Result 11677 states and 16282 transitions. [2019-10-15 01:17:19,345 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-15 01:17:19,345 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 200 [2019-10-15 01:17:19,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:19,409 INFO L225 Difference]: With dead ends: 11677 [2019-10-15 01:17:19,409 INFO L226 Difference]: Without dead ends: 9092 [2019-10-15 01:17:19,440 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2019-10-15 01:17:19,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9092 states. [2019-10-15 01:17:20,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9092 to 9070. [2019-10-15 01:17:20,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9070 states. [2019-10-15 01:17:20,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9070 states to 9070 states and 12558 transitions. [2019-10-15 01:17:20,059 INFO L78 Accepts]: Start accepts. Automaton has 9070 states and 12558 transitions. Word has length 200 [2019-10-15 01:17:20,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:20,061 INFO L462 AbstractCegarLoop]: Abstraction has 9070 states and 12558 transitions. [2019-10-15 01:17:20,061 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 01:17:20,061 INFO L276 IsEmpty]: Start isEmpty. Operand 9070 states and 12558 transitions. [2019-10-15 01:17:20,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2019-10-15 01:17:20,070 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:20,070 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] [2019-10-15 01:17:20,071 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:20,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:20,071 INFO L82 PathProgramCache]: Analyzing trace with hash -1465027948, now seen corresponding path program 1 times [2019-10-15 01:17:20,071 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:20,071 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441255713] [2019-10-15 01:17:20,072 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:20,072 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:20,072 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:20,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:20,576 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:17:20,576 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441255713] [2019-10-15 01:17:20,576 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:20,576 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2019-10-15 01:17:20,576 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231665015] [2019-10-15 01:17:20,577 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-10-15 01:17:20,577 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:20,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-10-15 01:17:20,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=601, Unknown=0, NotChecked=0, Total=650 [2019-10-15 01:17:20,578 INFO L87 Difference]: Start difference. First operand 9070 states and 12558 transitions. Second operand 26 states. [2019-10-15 01:17:21,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:21,688 INFO L93 Difference]: Finished difference Result 17217 states and 23898 transitions. [2019-10-15 01:17:21,689 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-10-15 01:17:21,690 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 201 [2019-10-15 01:17:21,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:21,738 INFO L225 Difference]: With dead ends: 17217 [2019-10-15 01:17:21,739 INFO L226 Difference]: Without dead ends: 7689 [2019-10-15 01:17:21,774 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=93, Invalid=1239, Unknown=0, NotChecked=0, Total=1332 [2019-10-15 01:17:21,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7689 states. [2019-10-15 01:17:22,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7689 to 7556. [2019-10-15 01:17:22,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7556 states. [2019-10-15 01:17:22,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7556 states to 7556 states and 10417 transitions. [2019-10-15 01:17:22,272 INFO L78 Accepts]: Start accepts. Automaton has 7556 states and 10417 transitions. Word has length 201 [2019-10-15 01:17:22,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:22,273 INFO L462 AbstractCegarLoop]: Abstraction has 7556 states and 10417 transitions. [2019-10-15 01:17:22,273 INFO L463 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-10-15 01:17:22,273 INFO L276 IsEmpty]: Start isEmpty. Operand 7556 states and 10417 transitions. [2019-10-15 01:17:22,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2019-10-15 01:17:22,282 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:22,283 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] [2019-10-15 01:17:22,283 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:22,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:22,283 INFO L82 PathProgramCache]: Analyzing trace with hash -1427183847, now seen corresponding path program 1 times [2019-10-15 01:17:22,284 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:22,284 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051007387] [2019-10-15 01:17:22,284 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:22,284 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:22,284 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:22,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:22,469 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:17:22,469 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051007387] [2019-10-15 01:17:22,470 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:22,470 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-15 01:17:22,470 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585893365] [2019-10-15 01:17:22,470 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-15 01:17:22,471 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:22,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-15 01:17:22,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-15 01:17:22,471 INFO L87 Difference]: Start difference. First operand 7556 states and 10417 transitions. Second operand 10 states. [2019-10-15 01:17:22,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:22,629 INFO L93 Difference]: Finished difference Result 7609 states and 10499 transitions. [2019-10-15 01:17:22,629 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-15 01:17:22,630 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 205 [2019-10-15 01:17:22,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:22,661 INFO L225 Difference]: With dead ends: 7609 [2019-10-15 01:17:22,661 INFO L226 Difference]: Without dead ends: 7548 [2019-10-15 01:17:22,666 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-15 01:17:22,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7548 states. [2019-10-15 01:17:22,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7548 to 7540. [2019-10-15 01:17:22,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7540 states. [2019-10-15 01:17:22,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7540 states to 7540 states and 10381 transitions. [2019-10-15 01:17:22,952 INFO L78 Accepts]: Start accepts. Automaton has 7540 states and 10381 transitions. Word has length 205 [2019-10-15 01:17:22,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:22,953 INFO L462 AbstractCegarLoop]: Abstraction has 7540 states and 10381 transitions. [2019-10-15 01:17:22,953 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-15 01:17:22,953 INFO L276 IsEmpty]: Start isEmpty. Operand 7540 states and 10381 transitions. [2019-10-15 01:17:22,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2019-10-15 01:17:22,962 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:22,963 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] [2019-10-15 01:17:22,963 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:22,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:22,964 INFO L82 PathProgramCache]: Analyzing trace with hash 404763986, now seen corresponding path program 1 times [2019-10-15 01:17:22,964 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:22,964 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837368587] [2019-10-15 01:17:22,964 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:22,964 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:22,964 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:23,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:23,119 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:17:23,119 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837368587] [2019-10-15 01:17:23,119 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:23,119 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 01:17:23,120 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914238650] [2019-10-15 01:17:23,120 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:17:23,121 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:23,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:17:23,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:17:23,121 INFO L87 Difference]: Start difference. First operand 7540 states and 10381 transitions. Second operand 5 states. [2019-10-15 01:17:23,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:23,410 INFO L93 Difference]: Finished difference Result 12520 states and 16925 transitions. [2019-10-15 01:17:23,411 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 01:17:23,411 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 210 [2019-10-15 01:17:23,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:23,444 INFO L225 Difference]: With dead ends: 12520 [2019-10-15 01:17:23,444 INFO L226 Difference]: Without dead ends: 7689 [2019-10-15 01:17:23,460 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:17:23,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7689 states. [2019-10-15 01:17:23,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7689 to 7622. [2019-10-15 01:17:23,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7622 states. [2019-10-15 01:17:23,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7622 states to 7622 states and 10486 transitions. [2019-10-15 01:17:23,753 INFO L78 Accepts]: Start accepts. Automaton has 7622 states and 10486 transitions. Word has length 210 [2019-10-15 01:17:23,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:23,754 INFO L462 AbstractCegarLoop]: Abstraction has 7622 states and 10486 transitions. [2019-10-15 01:17:23,754 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:17:23,754 INFO L276 IsEmpty]: Start isEmpty. Operand 7622 states and 10486 transitions. [2019-10-15 01:17:23,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2019-10-15 01:17:23,765 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:23,765 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] [2019-10-15 01:17:23,766 INFO L410 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:23,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:23,766 INFO L82 PathProgramCache]: Analyzing trace with hash 1565961098, now seen corresponding path program 1 times [2019-10-15 01:17:23,766 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:23,767 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390218374] [2019-10-15 01:17:23,767 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:23,767 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:23,767 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:23,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:23,971 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:17:23,971 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390218374] [2019-10-15 01:17:23,972 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:23,972 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-15 01:17:23,972 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486792680] [2019-10-15 01:17:23,972 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-15 01:17:23,973 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:23,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-15 01:17:23,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-10-15 01:17:23,973 INFO L87 Difference]: Start difference. First operand 7622 states and 10486 transitions. Second operand 11 states. [2019-10-15 01:17:24,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:24,396 INFO L93 Difference]: Finished difference Result 12503 states and 16852 transitions. [2019-10-15 01:17:24,396 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-15 01:17:24,396 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 210 [2019-10-15 01:17:24,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:24,427 INFO L225 Difference]: With dead ends: 12503 [2019-10-15 01:17:24,427 INFO L226 Difference]: Without dead ends: 7620 [2019-10-15 01:17:24,444 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 [2019-10-15 01:17:24,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7620 states. [2019-10-15 01:17:25,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7620 to 7584. [2019-10-15 01:17:25,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7584 states. [2019-10-15 01:17:25,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7584 states to 7584 states and 10404 transitions. [2019-10-15 01:17:25,415 INFO L78 Accepts]: Start accepts. Automaton has 7584 states and 10404 transitions. Word has length 210 [2019-10-15 01:17:25,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:25,415 INFO L462 AbstractCegarLoop]: Abstraction has 7584 states and 10404 transitions. [2019-10-15 01:17:25,416 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-15 01:17:25,416 INFO L276 IsEmpty]: Start isEmpty. Operand 7584 states and 10404 transitions. [2019-10-15 01:17:25,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2019-10-15 01:17:25,428 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:25,430 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:17:25,431 INFO L410 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:25,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:25,431 INFO L82 PathProgramCache]: Analyzing trace with hash -1834380725, now seen corresponding path program 1 times [2019-10-15 01:17:25,432 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:25,432 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411137229] [2019-10-15 01:17:25,432 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:25,432 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:25,433 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:25,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:25,628 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:17:25,629 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411137229] [2019-10-15 01:17:25,629 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:25,629 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 01:17:25,629 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187235786] [2019-10-15 01:17:25,631 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 01:17:25,631 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:25,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 01:17:25,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:17:25,633 INFO L87 Difference]: Start difference. First operand 7584 states and 10404 transitions. Second operand 6 states. [2019-10-15 01:17:26,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:26,473 INFO L93 Difference]: Finished difference Result 21098 states and 28664 transitions. [2019-10-15 01:17:26,474 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 01:17:26,474 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 211 [2019-10-15 01:17:26,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:26,551 INFO L225 Difference]: With dead ends: 21098 [2019-10-15 01:17:26,551 INFO L226 Difference]: Without dead ends: 15151 [2019-10-15 01:17:26,585 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 [2019-10-15 01:17:26,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15151 states. [2019-10-15 01:17:27,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15151 to 15017. [2019-10-15 01:17:27,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15017 states. [2019-10-15 01:17:27,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15017 states to 15017 states and 20675 transitions. [2019-10-15 01:17:27,397 INFO L78 Accepts]: Start accepts. Automaton has 15017 states and 20675 transitions. Word has length 211 [2019-10-15 01:17:27,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:27,398 INFO L462 AbstractCegarLoop]: Abstraction has 15017 states and 20675 transitions. [2019-10-15 01:17:27,398 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 01:17:27,398 INFO L276 IsEmpty]: Start isEmpty. Operand 15017 states and 20675 transitions. [2019-10-15 01:17:27,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2019-10-15 01:17:27,419 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:27,419 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] [2019-10-15 01:17:27,419 INFO L410 AbstractCegarLoop]: === Iteration 16 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:27,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:27,420 INFO L82 PathProgramCache]: Analyzing trace with hash -934857408, now seen corresponding path program 1 times [2019-10-15 01:17:27,420 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:27,420 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299149341] [2019-10-15 01:17:27,420 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:27,421 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:27,421 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:27,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat