java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/product-lines/email_spec6_product21.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:16:10,263 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:16:10,266 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:16:10,284 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:16:10,285 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:16:10,287 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:16:10,288 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:16:10,297 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:16:10,301 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:16:10,305 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:16:10,306 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:16:10,307 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:16:10,307 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:16:10,308 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:16:10,309 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:16:10,310 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:16:10,310 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:16:10,311 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:16:10,313 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:16:10,314 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:16:10,315 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:16:10,316 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:16:10,317 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:16:10,318 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:16:10,320 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:16:10,320 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:16:10,320 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:16:10,321 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:16:10,321 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:16:10,322 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:16:10,322 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:16:10,323 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:16:10,324 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:16:10,324 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:16:10,325 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:16:10,325 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:16:10,326 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:16:10,326 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:16:10,327 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:16:10,327 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:16:10,328 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:16:10,329 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 01:16:10,342 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:16:10,342 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:16:10,343 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:16:10,344 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:16:10,344 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:16:10,344 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:16:10,344 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:16:10,344 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:16:10,345 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:16:10,345 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:16:10,345 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:16:10,345 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:16:10,345 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:16:10,346 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:16:10,346 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:16:10,346 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:16:10,346 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:16:10,346 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:16:10,347 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:16:10,347 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:16:10,347 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:16:10,347 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:16:10,347 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:16:10,348 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:16:10,348 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:16:10,348 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:16:10,348 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:16:10,348 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:16:10,349 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 01:16:10,640 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:16:10,653 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:16:10,656 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:16:10,658 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:16:10,658 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:16:10,659 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec6_product21.cil.c [2019-10-15 01:16:10,733 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c67c704f8/e3e8cfbb0d1f4bc7b1b3d5dac8cabdba/FLAGb563ee12b [2019-10-15 01:16:11,318 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:16:11,319 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec6_product21.cil.c [2019-10-15 01:16:11,344 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c67c704f8/e3e8cfbb0d1f4bc7b1b3d5dac8cabdba/FLAGb563ee12b [2019-10-15 01:16:11,607 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c67c704f8/e3e8cfbb0d1f4bc7b1b3d5dac8cabdba [2019-10-15 01:16:11,617 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:16:11,618 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:16:11,619 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:16:11,619 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:16:11,624 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:16:11,625 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:16:11" (1/1) ... [2019-10-15 01:16:11,627 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11e8ed57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:11, skipping insertion in model container [2019-10-15 01:16:11,628 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:16:11" (1/1) ... [2019-10-15 01:16:11,636 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:16:11,722 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:16:12,473 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:16:12,490 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:16:12,576 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:16:12,668 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:16:12,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:12 WrapperNode [2019-10-15 01:16:12,669 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:16:12,670 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:16:12,670 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:16:12,670 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:16:12,685 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:12" (1/1) ... [2019-10-15 01:16:12,686 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:12" (1/1) ... [2019-10-15 01:16:12,719 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:12" (1/1) ... [2019-10-15 01:16:12,720 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:12" (1/1) ... [2019-10-15 01:16:12,790 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:12" (1/1) ... [2019-10-15 01:16:12,830 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:12" (1/1) ... [2019-10-15 01:16:12,854 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:12" (1/1) ... [2019-10-15 01:16:12,884 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:16:12,885 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:16:12,888 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:16:12,888 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:16:12,890 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:12" (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 01:16:12,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:16:12,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:16:12,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 01:16:12,969 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 01:16:12,969 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-15 01:16:12,970 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-15 01:16:12,971 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 01:16:12,971 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 01:16:12,972 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 01:16:12,973 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 01:16:12,973 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 01:16:12,973 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 01:16:12,973 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 01:16:12,974 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 01:16:12,975 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-15 01:16:12,975 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 01:16:12,977 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 01:16:12,977 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AddressBook [2019-10-15 01:16:12,978 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-15 01:16:12,978 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 01:16:12,978 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 01:16:12,978 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 01:16:12,978 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 01:16:12,979 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 01:16:12,979 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 01:16:12,979 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 01:16:12,979 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 01:16:12,979 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 01:16:12,979 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-15 01:16:12,980 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-15 01:16:12,980 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 01:16:12,980 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 01:16:12,980 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 01:16:12,980 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 01:16:12,980 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 01:16:12,981 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 01:16:12,981 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 01:16:12,981 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 01:16:12,981 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 01:16:12,981 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 01:16:12,982 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 01:16:12,982 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 01:16:12,982 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 01:16:12,982 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 01:16:12,983 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 01:16:12,983 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 01:16:12,983 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 01:16:12,983 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 01:16:12,983 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 01:16:12,984 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 01:16:12,984 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 01:16:12,984 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 01:16:12,984 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 01:16:12,984 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 01:16:12,985 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 01:16:12,985 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 01:16:12,985 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 01:16:12,985 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 01:16:12,985 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 01:16:12,986 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 01:16:12,986 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 01:16:12,986 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 01:16:12,987 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 01:16:12,987 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 01:16:12,987 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 01:16:12,987 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 01:16:12,987 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 01:16:12,987 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 01:16:12,988 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 01:16:12,988 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 01:16:12,988 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 01:16:12,988 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 01:16:12,988 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 01:16:12,989 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:16:12,989 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 01:16:12,989 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 01:16:12,990 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 01:16:12,990 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 01:16:12,990 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 01:16:12,990 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 01:16:12,991 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 01:16:12,991 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 01:16:12,991 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 01:16:12,991 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-15 01:16:12,992 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-15 01:16:12,992 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 01:16:12,992 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 01:16:12,993 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 01:16:12,994 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 01:16:12,994 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 01:16:12,994 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 01:16:12,994 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 01:16:12,994 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 01:16:12,995 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 01:16:12,995 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 01:16:12,995 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 01:16:12,995 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 01:16:12,995 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 01:16:12,996 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 01:16:12,996 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 01:16:12,996 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 01:16:12,996 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 01:16:12,996 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 01:16:12,996 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 01:16:12,997 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 01:16:12,997 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 01:16:12,997 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 01:16:12,997 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 01:16:12,997 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 01:16:12,998 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 01:16:12,998 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 01:16:12,998 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 01:16:12,998 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 01:16:12,998 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:16:12,998 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:16:12,999 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 01:16:12,999 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 01:16:12,999 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:16:13,000 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 01:16:13,000 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 01:16:13,000 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 01:16:13,000 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 01:16:13,001 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 01:16:13,001 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 01:16:13,002 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-15 01:16:13,005 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-15 01:16:13,005 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 01:16:13,006 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 01:16:13,006 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 01:16:13,006 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 01:16:13,006 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 01:16:13,006 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 01:16:13,007 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 01:16:13,007 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 01:16:13,007 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 01:16:13,007 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 01:16:13,008 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 01:16:13,011 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 01:16:13,011 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 01:16:13,011 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 01:16:13,012 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 01:16:13,012 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 01:16:13,012 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 01:16:13,013 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 01:16:13,017 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 01:16:13,017 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 01:16:13,018 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 01:16:13,018 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 01:16:13,018 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 01:16:13,018 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 01:16:13,018 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 01:16:13,018 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 01:16:13,018 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 01:16:13,019 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 01:16:13,019 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 01:16:13,019 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 01:16:13,019 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 01:16:13,022 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-15 01:16:13,022 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-15 01:16:13,022 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 01:16:13,022 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-15 01:16:13,022 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AddressBook [2019-10-15 01:16:13,022 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-15 01:16:13,022 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 01:16:13,023 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 01:16:13,023 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 01:16:13,023 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 01:16:13,023 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 01:16:13,023 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 01:16:13,023 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 01:16:13,023 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 01:16:13,023 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 01:16:13,024 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 01:16:13,024 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 01:16:13,024 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 01:16:13,024 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 01:16:13,024 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 01:16:13,024 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 01:16:13,024 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 01:16:13,024 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 01:16:13,025 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 01:16:13,025 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 01:16:13,025 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 01:16:13,025 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 01:16:13,025 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 01:16:13,025 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 01:16:13,025 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 01:16:13,026 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 01:16:13,026 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 01:16:13,026 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 01:16:13,026 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 01:16:13,026 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 01:16:13,026 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-15 01:16:13,026 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 01:16:13,027 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-15 01:16:13,027 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 01:16:13,027 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 01:16:13,027 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 01:16:13,027 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 01:16:13,027 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 01:16:13,027 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 01:16:13,028 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 01:16:13,028 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 01:16:13,028 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 01:16:13,028 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:16:13,028 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 01:16:13,028 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 01:16:13,029 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 01:16:13,029 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 01:16:13,029 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 01:16:13,029 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 01:16:13,029 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 01:16:13,029 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 01:16:13,029 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 01:16:13,030 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 01:16:13,030 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 01:16:13,030 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 01:16:13,030 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 01:16:13,030 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 01:16:13,030 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 01:16:13,031 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 01:16:13,031 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 01:16:13,031 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 01:16:13,031 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:16:13,031 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:16:13,031 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 01:16:13,032 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:16:13,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:16:13,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:16:13,032 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:16:13,032 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 01:16:13,032 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:16:13,032 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 01:16:13,033 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 01:16:13,033 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:16:13,033 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 01:16:13,033 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 01:16:13,033 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 01:16:13,033 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:16:13,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 01:16:13,034 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:16:15,119 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:16:15,120 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 01:16:15,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:16:15 BoogieIcfgContainer [2019-10-15 01:16:15,121 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:16:15,122 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:16:15,123 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:16:15,126 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:16:15,126 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:16:11" (1/3) ... [2019-10-15 01:16:15,127 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76a1bb6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:16:15, skipping insertion in model container [2019-10-15 01:16:15,127 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:12" (2/3) ... [2019-10-15 01:16:15,128 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76a1bb6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:16:15, skipping insertion in model container [2019-10-15 01:16:15,128 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:16:15" (3/3) ... [2019-10-15 01:16:15,130 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec6_product21.cil.c [2019-10-15 01:16:15,140 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:16:15,151 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:16:15,163 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:16:15,203 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:16:15,203 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:16:15,203 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:16:15,203 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:16:15,203 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:16:15,203 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:16:15,205 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:16:15,208 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:16:15,244 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states. [2019-10-15 01:16:15,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2019-10-15 01:16:15,275 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:15,277 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-15 01:16:15,280 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:15,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:15,285 INFO L82 PathProgramCache]: Analyzing trace with hash -818881657, now seen corresponding path program 1 times [2019-10-15 01:16:15,292 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:15,293 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172885597] [2019-10-15 01:16:15,293 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:15,294 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:15,294 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:15,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:15,953 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 01:16:15,953 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172885597] [2019-10-15 01:16:15,954 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:15,954 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 01:16:15,955 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226309662] [2019-10-15 01:16:15,961 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:16:15,963 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:15,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:16:15,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:16:15,980 INFO L87 Difference]: Start difference. First operand 577 states. Second operand 2 states. [2019-10-15 01:16:16,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:16,097 INFO L93 Difference]: Finished difference Result 840 states and 1139 transitions. [2019-10-15 01:16:16,097 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:16:16,101 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 185 [2019-10-15 01:16:16,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:16,122 INFO L225 Difference]: With dead ends: 840 [2019-10-15 01:16:16,122 INFO L226 Difference]: Without dead ends: 548 [2019-10-15 01:16:16,135 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 01:16:16,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2019-10-15 01:16:16,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 548. [2019-10-15 01:16:16,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 548 states. [2019-10-15 01:16:16,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 748 transitions. [2019-10-15 01:16:16,238 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 748 transitions. Word has length 185 [2019-10-15 01:16:16,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:16,241 INFO L462 AbstractCegarLoop]: Abstraction has 548 states and 748 transitions. [2019-10-15 01:16:16,241 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:16:16,241 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 748 transitions. [2019-10-15 01:16:16,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2019-10-15 01:16:16,248 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:16,249 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-15 01:16:16,249 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:16,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:16,250 INFO L82 PathProgramCache]: Analyzing trace with hash 1630438931, now seen corresponding path program 1 times [2019-10-15 01:16:16,250 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:16,250 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17527939] [2019-10-15 01:16:16,251 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:16,251 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:16,251 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:16,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:16,613 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 01:16:16,613 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17527939] [2019-10-15 01:16:16,614 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:16,614 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:16:16,614 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874362259] [2019-10-15 01:16:16,619 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:16:16,620 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:16,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:16:16,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:16,621 INFO L87 Difference]: Start difference. First operand 548 states and 748 transitions. Second operand 3 states. [2019-10-15 01:16:16,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:16,696 INFO L93 Difference]: Finished difference Result 823 states and 1104 transitions. [2019-10-15 01:16:16,696 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:16:16,696 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 186 [2019-10-15 01:16:16,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:16,704 INFO L225 Difference]: With dead ends: 823 [2019-10-15 01:16:16,705 INFO L226 Difference]: Without dead ends: 551 [2019-10-15 01:16:16,707 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 01:16:16,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2019-10-15 01:16:16,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 550. [2019-10-15 01:16:16,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 550 states. [2019-10-15 01:16:16,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 750 transitions. [2019-10-15 01:16:16,772 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 750 transitions. Word has length 186 [2019-10-15 01:16:16,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:16,772 INFO L462 AbstractCegarLoop]: Abstraction has 550 states and 750 transitions. [2019-10-15 01:16:16,773 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:16:16,773 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 750 transitions. [2019-10-15 01:16:16,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2019-10-15 01:16:16,779 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:16,780 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:16,780 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:16,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:16,780 INFO L82 PathProgramCache]: Analyzing trace with hash -160158177, now seen corresponding path program 1 times [2019-10-15 01:16:16,781 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:16,781 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164380129] [2019-10-15 01:16:16,781 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:16,781 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:16,781 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:16,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:16,946 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 01:16:16,946 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164380129] [2019-10-15 01:16:16,947 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:16,947 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:16:16,947 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797177175] [2019-10-15 01:16:16,948 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:16:16,950 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:16,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:16:16,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:16,951 INFO L87 Difference]: Start difference. First operand 550 states and 750 transitions. Second operand 3 states. [2019-10-15 01:16:16,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:16,999 INFO L93 Difference]: Finished difference Result 1078 states and 1501 transitions. [2019-10-15 01:16:17,000 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:16:17,000 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 192 [2019-10-15 01:16:17,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:17,008 INFO L225 Difference]: With dead ends: 1078 [2019-10-15 01:16:17,008 INFO L226 Difference]: Without dead ends: 593 [2019-10-15 01:16:17,011 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 01:16:17,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2019-10-15 01:16:17,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 592. [2019-10-15 01:16:17,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 592 states. [2019-10-15 01:16:17,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 822 transitions. [2019-10-15 01:16:17,056 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 822 transitions. Word has length 192 [2019-10-15 01:16:17,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:17,057 INFO L462 AbstractCegarLoop]: Abstraction has 592 states and 822 transitions. [2019-10-15 01:16:17,058 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:16:17,058 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 822 transitions. [2019-10-15 01:16:17,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2019-10-15 01:16:17,069 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:17,070 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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 01:16:17,070 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:17,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:17,071 INFO L82 PathProgramCache]: Analyzing trace with hash 245663473, now seen corresponding path program 1 times [2019-10-15 01:16:17,071 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:17,072 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845423185] [2019-10-15 01:16:17,072 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:17,072 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:17,073 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:17,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:17,569 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 01:16:17,569 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845423185] [2019-10-15 01:16:17,569 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:17,570 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-15 01:16:17,570 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579071055] [2019-10-15 01:16:17,570 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-15 01:16:17,571 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:17,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-15 01:16:17,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2019-10-15 01:16:17,572 INFO L87 Difference]: Start difference. First operand 592 states and 822 transitions. Second operand 11 states. [2019-10-15 01:16:22,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:22,550 INFO L93 Difference]: Finished difference Result 2870 states and 4070 transitions. [2019-10-15 01:16:22,550 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2019-10-15 01:16:22,550 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 193 [2019-10-15 01:16:22,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:22,570 INFO L225 Difference]: With dead ends: 2870 [2019-10-15 01:16:22,570 INFO L226 Difference]: Without dead ends: 2611 [2019-10-15 01:16:22,573 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 281 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=209, Invalid=913, Unknown=0, NotChecked=0, Total=1122 [2019-10-15 01:16:22,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2611 states. [2019-10-15 01:16:22,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2611 to 2590. [2019-10-15 01:16:22,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2590 states. [2019-10-15 01:16:22,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2590 states to 2590 states and 3623 transitions. [2019-10-15 01:16:22,723 INFO L78 Accepts]: Start accepts. Automaton has 2590 states and 3623 transitions. Word has length 193 [2019-10-15 01:16:22,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:22,724 INFO L462 AbstractCegarLoop]: Abstraction has 2590 states and 3623 transitions. [2019-10-15 01:16:22,724 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-15 01:16:22,724 INFO L276 IsEmpty]: Start isEmpty. Operand 2590 states and 3623 transitions. [2019-10-15 01:16:22,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2019-10-15 01:16:22,728 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:22,728 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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 01:16:22,729 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:22,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:22,729 INFO L82 PathProgramCache]: Analyzing trace with hash 5932126, now seen corresponding path program 1 times [2019-10-15 01:16:22,729 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:22,730 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463102483] [2019-10-15 01:16:22,730 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:22,730 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:22,730 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:22,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:23,056 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 01:16:23,056 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463102483] [2019-10-15 01:16:23,056 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:23,057 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2019-10-15 01:16:23,057 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295094456] [2019-10-15 01:16:23,057 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-10-15 01:16:23,058 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:23,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-10-15 01:16:23,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2019-10-15 01:16:23,059 INFO L87 Difference]: Start difference. First operand 2590 states and 3623 transitions. Second operand 18 states. [2019-10-15 01:16:23,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:23,667 INFO L93 Difference]: Finished difference Result 4882 states and 6942 transitions. [2019-10-15 01:16:23,667 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-10-15 01:16:23,668 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 194 [2019-10-15 01:16:23,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:23,692 INFO L225 Difference]: With dead ends: 4882 [2019-10-15 01:16:23,692 INFO L226 Difference]: Without dead ends: 2607 [2019-10-15 01:16:23,702 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2019-10-15 01:16:23,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2607 states. [2019-10-15 01:16:23,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2607 to 2605. [2019-10-15 01:16:23,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2605 states. [2019-10-15 01:16:23,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2605 states to 2605 states and 3628 transitions. [2019-10-15 01:16:23,826 INFO L78 Accepts]: Start accepts. Automaton has 2605 states and 3628 transitions. Word has length 194 [2019-10-15 01:16:23,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:23,828 INFO L462 AbstractCegarLoop]: Abstraction has 2605 states and 3628 transitions. [2019-10-15 01:16:23,828 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-10-15 01:16:23,828 INFO L276 IsEmpty]: Start isEmpty. Operand 2605 states and 3628 transitions. [2019-10-15 01:16:23,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2019-10-15 01:16:23,832 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:23,832 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:23,833 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:23,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:23,833 INFO L82 PathProgramCache]: Analyzing trace with hash -129887982, now seen corresponding path program 1 times [2019-10-15 01:16:23,833 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:23,833 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107035614] [2019-10-15 01:16:23,834 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:23,834 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:23,834 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:23,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:24,074 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 01:16:24,074 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107035614] [2019-10-15 01:16:24,076 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:24,076 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 01:16:24,077 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743944340] [2019-10-15 01:16:24,077 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 01:16:24,078 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:24,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 01:16:24,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:16:24,079 INFO L87 Difference]: Start difference. First operand 2605 states and 3628 transitions. Second operand 6 states. [2019-10-15 01:16:24,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:24,833 INFO L93 Difference]: Finished difference Result 7541 states and 10662 transitions. [2019-10-15 01:16:24,833 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 01:16:24,833 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 203 [2019-10-15 01:16:24,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:24,864 INFO L225 Difference]: With dead ends: 7541 [2019-10-15 01:16:24,864 INFO L226 Difference]: Without dead ends: 5297 [2019-10-15 01:16:24,876 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 01:16:24,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5297 states. [2019-10-15 01:16:25,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5297 to 5226. [2019-10-15 01:16:25,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5226 states. [2019-10-15 01:16:25,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5226 states to 5226 states and 7370 transitions. [2019-10-15 01:16:25,138 INFO L78 Accepts]: Start accepts. Automaton has 5226 states and 7370 transitions. Word has length 203 [2019-10-15 01:16:25,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:25,139 INFO L462 AbstractCegarLoop]: Abstraction has 5226 states and 7370 transitions. [2019-10-15 01:16:25,139 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 01:16:25,139 INFO L276 IsEmpty]: Start isEmpty. Operand 5226 states and 7370 transitions. [2019-10-15 01:16:25,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2019-10-15 01:16:25,144 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:25,144 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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 01:16:25,145 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:25,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:25,145 INFO L82 PathProgramCache]: Analyzing trace with hash 1737216113, now seen corresponding path program 1 times [2019-10-15 01:16:25,145 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:25,146 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542098869] [2019-10-15 01:16:25,146 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:25,146 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:25,146 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:25,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:25,399 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 01:16:25,400 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542098869] [2019-10-15 01:16:25,400 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:25,400 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-15 01:16:25,401 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391484111] [2019-10-15 01:16:25,401 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-15 01:16:25,402 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:25,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-15 01:16:25,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-10-15 01:16:25,403 INFO L87 Difference]: Start difference. First operand 5226 states and 7370 transitions. Second operand 11 states. [2019-10-15 01:16:25,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:25,989 INFO L93 Difference]: Finished difference Result 9853 states and 13893 transitions. [2019-10-15 01:16:25,990 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-15 01:16:25,990 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 204 [2019-10-15 01:16:25,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:26,021 INFO L225 Difference]: With dead ends: 9853 [2019-10-15 01:16:26,022 INFO L226 Difference]: Without dead ends: 5280 [2019-10-15 01:16:26,039 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 01:16:26,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5280 states. [2019-10-15 01:16:26,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5280 to 5262. [2019-10-15 01:16:26,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5262 states. [2019-10-15 01:16:26,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5262 states to 5262 states and 7406 transitions. [2019-10-15 01:16:26,354 INFO L78 Accepts]: Start accepts. Automaton has 5262 states and 7406 transitions. Word has length 204 [2019-10-15 01:16:26,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:26,355 INFO L462 AbstractCegarLoop]: Abstraction has 5262 states and 7406 transitions. [2019-10-15 01:16:26,355 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-15 01:16:26,355 INFO L276 IsEmpty]: Start isEmpty. Operand 5262 states and 7406 transitions. [2019-10-15 01:16:26,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2019-10-15 01:16:26,361 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:26,362 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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 01:16:26,362 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:26,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:26,362 INFO L82 PathProgramCache]: Analyzing trace with hash -1970975064, now seen corresponding path program 1 times [2019-10-15 01:16:26,363 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:26,363 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980821180] [2019-10-15 01:16:26,363 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:26,363 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:26,363 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:26,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:26,520 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 01:16:26,521 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980821180] [2019-10-15 01:16:26,521 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:26,521 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 01:16:26,521 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070603320] [2019-10-15 01:16:26,522 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:16:26,522 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:26,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:16:26,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:16:26,523 INFO L87 Difference]: Start difference. First operand 5262 states and 7406 transitions. Second operand 5 states. [2019-10-15 01:16:28,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:28,035 INFO L93 Difference]: Finished difference Result 19579 states and 27594 transitions. [2019-10-15 01:16:28,035 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:16:28,035 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 204 [2019-10-15 01:16:28,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:28,124 INFO L225 Difference]: With dead ends: 19579 [2019-10-15 01:16:28,124 INFO L226 Difference]: Without dead ends: 14972 [2019-10-15 01:16:28,151 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 01:16:28,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14972 states. [2019-10-15 01:16:28,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14972 to 14860. [2019-10-15 01:16:28,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14860 states. [2019-10-15 01:16:28,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14860 states to 14860 states and 20886 transitions. [2019-10-15 01:16:28,719 INFO L78 Accepts]: Start accepts. Automaton has 14860 states and 20886 transitions. Word has length 204 [2019-10-15 01:16:28,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:28,720 INFO L462 AbstractCegarLoop]: Abstraction has 14860 states and 20886 transitions. [2019-10-15 01:16:28,720 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:16:28,720 INFO L276 IsEmpty]: Start isEmpty. Operand 14860 states and 20886 transitions. [2019-10-15 01:16:28,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2019-10-15 01:16:28,734 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:28,735 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:28,735 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:28,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:28,735 INFO L82 PathProgramCache]: Analyzing trace with hash -705130534, now seen corresponding path program 1 times [2019-10-15 01:16:28,736 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:28,736 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262017893] [2019-10-15 01:16:28,736 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:28,736 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:28,736 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:28,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:28,902 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 01:16:28,903 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262017893] [2019-10-15 01:16:28,904 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:28,904 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:16:28,905 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096820956] [2019-10-15 01:16:28,906 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:16:28,906 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:28,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:16:28,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:28,907 INFO L87 Difference]: Start difference. First operand 14860 states and 20886 transitions. Second operand 3 states. [2019-10-15 01:16:29,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:29,345 INFO L93 Difference]: Finished difference Result 29999 states and 42332 transitions. [2019-10-15 01:16:29,346 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:16:29,346 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 233 [2019-10-15 01:16:29,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:29,425 INFO L225 Difference]: With dead ends: 29999 [2019-10-15 01:16:29,425 INFO L226 Difference]: Without dead ends: 15204 [2019-10-15 01:16:29,483 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 01:16:29,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15204 states. [2019-10-15 01:16:29,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15204 to 15200. [2019-10-15 01:16:29,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15200 states. [2019-10-15 01:16:30,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15200 states to 15200 states and 21507 transitions. [2019-10-15 01:16:30,980 INFO L78 Accepts]: Start accepts. Automaton has 15200 states and 21507 transitions. Word has length 233 [2019-10-15 01:16:30,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:30,981 INFO L462 AbstractCegarLoop]: Abstraction has 15200 states and 21507 transitions. [2019-10-15 01:16:30,981 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:16:30,981 INFO L276 IsEmpty]: Start isEmpty. Operand 15200 states and 21507 transitions. [2019-10-15 01:16:30,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2019-10-15 01:16:30,997 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:30,998 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:30,998 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:30,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:30,998 INFO L82 PathProgramCache]: Analyzing trace with hash 1132130108, now seen corresponding path program 1 times [2019-10-15 01:16:30,999 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:30,999 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723319993] [2019-10-15 01:16:30,999 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:30,999 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:30,999 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:31,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:31,136 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:16:31,137 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723319993] [2019-10-15 01:16:31,137 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:31,137 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:16:31,137 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388667145] [2019-10-15 01:16:31,138 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:16:31,138 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:31,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:16:31,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:31,139 INFO L87 Difference]: Start difference. First operand 15200 states and 21507 transitions. Second operand 3 states. [2019-10-15 01:16:31,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:31,438 INFO L93 Difference]: Finished difference Result 30979 states and 44131 transitions. [2019-10-15 01:16:31,438 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:16:31,438 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 240 [2019-10-15 01:16:31,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:31,498 INFO L225 Difference]: With dead ends: 30979 [2019-10-15 01:16:31,498 INFO L226 Difference]: Without dead ends: 15844 [2019-10-15 01:16:31,533 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 01:16:31,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15844 states. [2019-10-15 01:16:32,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15844 to 15840. [2019-10-15 01:16:32,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15840 states. [2019-10-15 01:16:32,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15840 states to 15840 states and 22677 transitions. [2019-10-15 01:16:32,297 INFO L78 Accepts]: Start accepts. Automaton has 15840 states and 22677 transitions. Word has length 240 [2019-10-15 01:16:32,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:32,298 INFO L462 AbstractCegarLoop]: Abstraction has 15840 states and 22677 transitions. [2019-10-15 01:16:32,298 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:16:32,298 INFO L276 IsEmpty]: Start isEmpty. Operand 15840 states and 22677 transitions. [2019-10-15 01:16:32,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2019-10-15 01:16:32,315 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:32,315 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:32,316 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:32,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:32,316 INFO L82 PathProgramCache]: Analyzing trace with hash 722288488, now seen corresponding path program 1 times [2019-10-15 01:16:32,316 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:32,316 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4780813] [2019-10-15 01:16:32,317 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:32,317 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:32,317 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:32,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:32,548 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:16:32,548 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4780813] [2019-10-15 01:16:32,548 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:32,548 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-15 01:16:32,549 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688489239] [2019-10-15 01:16:32,549 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-15 01:16:32,550 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:32,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-15 01:16:32,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-15 01:16:32,550 INFO L87 Difference]: Start difference. First operand 15840 states and 22677 transitions. Second operand 8 states. [2019-10-15 01:16:37,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:37,567 INFO L93 Difference]: Finished difference Result 47886 states and 70021 transitions. [2019-10-15 01:16:37,567 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-15 01:16:37,568 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 241 [2019-10-15 01:16:37,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:37,742 INFO L225 Difference]: With dead ends: 47886 [2019-10-15 01:16:37,742 INFO L226 Difference]: Without dead ends: 32111 [2019-10-15 01:16:37,786 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2019-10-15 01:16:37,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32111 states. [2019-10-15 01:16:38,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32111 to 18256. [2019-10-15 01:16:38,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18256 states. [2019-10-15 01:16:38,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18256 states to 18256 states and 27453 transitions. [2019-10-15 01:16:38,630 INFO L78 Accepts]: Start accepts. Automaton has 18256 states and 27453 transitions. Word has length 241 [2019-10-15 01:16:38,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:38,630 INFO L462 AbstractCegarLoop]: Abstraction has 18256 states and 27453 transitions. [2019-10-15 01:16:38,631 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-15 01:16:38,631 INFO L276 IsEmpty]: Start isEmpty. Operand 18256 states and 27453 transitions. [2019-10-15 01:16:38,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2019-10-15 01:16:38,670 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:38,670 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:38,671 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:38,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:38,671 INFO L82 PathProgramCache]: Analyzing trace with hash -229240649, now seen corresponding path program 1 times [2019-10-15 01:16:38,671 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:38,672 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000873898] [2019-10-15 01:16:38,672 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:38,672 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:38,672 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:38,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:39,080 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:16:39,081 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000873898] [2019-10-15 01:16:39,081 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:39,081 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-15 01:16:39,082 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297346784] [2019-10-15 01:16:39,082 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-15 01:16:39,082 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:39,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-15 01:16:39,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-15 01:16:39,083 INFO L87 Difference]: Start difference. First operand 18256 states and 27453 transitions. Second operand 8 states.