java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/product-lines/email_spec7_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 21:17:53,928 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:17:53,930 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:17:53,950 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:17:53,950 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:17:53,953 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:17:53,955 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:17:53,964 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:17:53,970 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:17:53,974 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:17:53,975 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:17:53,977 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:17:53,977 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:17:53,979 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:17:53,982 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:17:53,983 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:17:53,985 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:17:53,986 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:17:53,987 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:17:53,993 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:17:53,998 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:17:54,001 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:17:54,004 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:17:54,005 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:17:54,008 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 21:17:54,009 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 21:17:54,009 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 21:17:54,011 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 21:17:54,013 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 21:17:54,014 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 21:17:54,014 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 21:17:54,016 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 21:17:54,017 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 21:17:54,018 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 21:17:54,019 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 21:17:54,020 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 21:17:54,020 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 21:17:54,020 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 21:17:54,021 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:17:54,021 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:17:54,023 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:17:54,024 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 21:17:54,051 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:17:54,051 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:17:54,052 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:17:54,052 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:17:54,053 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:17:54,053 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:17:54,054 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:17:54,054 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:17:54,054 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:17:54,055 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:17:54,055 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:17:54,055 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:17:54,056 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:17:54,056 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:17:54,056 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:17:54,057 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:17:54,057 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:17:54,057 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:17:54,058 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:17:54,058 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:17:54,058 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:17:54,058 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:17:54,058 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:17:54,059 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:17:54,059 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:17:54,059 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:17:54,059 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:17:54,059 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:17:54,060 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-13 21:17:54,324 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:17:54,341 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:17:54,345 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:17:54,347 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:17:54,347 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:17:54,348 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec7_product35.cil.c [2019-10-13 21:17:54,422 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba785ff3f/275e93a2d55649a18446c1e4182f4d7d/FLAGb8652eba5 [2019-10-13 21:17:55,131 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:17:55,132 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec7_product35.cil.c [2019-10-13 21:17:55,158 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba785ff3f/275e93a2d55649a18446c1e4182f4d7d/FLAGb8652eba5 [2019-10-13 21:17:55,287 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba785ff3f/275e93a2d55649a18446c1e4182f4d7d [2019-10-13 21:17:55,298 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:17:55,301 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:17:55,302 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:17:55,303 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:17:55,306 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:17:55,307 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:17:55" (1/1) ... [2019-10-13 21:17:55,310 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3653704b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:55, skipping insertion in model container [2019-10-13 21:17:55,310 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:17:55" (1/1) ... [2019-10-13 21:17:55,316 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:17:55,389 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:17:56,147 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:17:56,165 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:17:56,300 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:17:56,414 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:17:56,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:56 WrapperNode [2019-10-13 21:17:56,415 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:17:56,417 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:17:56,417 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:17:56,417 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:17:56,434 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:56" (1/1) ... [2019-10-13 21:17:56,434 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:56" (1/1) ... [2019-10-13 21:17:56,495 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:56" (1/1) ... [2019-10-13 21:17:56,496 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:56" (1/1) ... [2019-10-13 21:17:56,571 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:56" (1/1) ... [2019-10-13 21:17:56,609 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:56" (1/1) ... [2019-10-13 21:17:56,627 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:56" (1/1) ... [2019-10-13 21:17:56,643 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:17:56,644 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:17:56,644 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:17:56,644 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:17:56,645 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:56" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:17:56,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:17:56,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:17:56,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 21:17:56,715 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 21:17:56,716 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 21:17:56,716 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-13 21:17:56,716 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-13 21:17:56,716 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 21:17:56,716 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 21:17:56,717 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 21:17:56,717 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 21:17:56,717 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 21:17:56,717 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 21:17:56,717 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 21:17:56,718 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-13 21:17:56,718 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-13 21:17:56,718 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 21:17:56,718 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 21:17:56,718 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-13 21:17:56,719 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-13 21:17:56,719 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-13 21:17:56,720 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-13 21:17:56,720 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 21:17:56,720 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 21:17:56,720 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 21:17:56,721 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 21:17:56,721 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 21:17:56,721 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 21:17:56,721 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 21:17:56,722 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 21:17:56,722 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 21:17:56,722 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-13 21:17:56,722 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-13 21:17:56,722 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-13 21:17:56,722 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-13 21:17:56,723 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-13 21:17:56,723 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 21:17:56,723 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 21:17:56,724 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 21:17:56,724 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 21:17:56,724 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 21:17:56,724 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 21:17:56,724 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 21:17:56,724 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 21:17:56,725 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 21:17:56,725 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 21:17:56,725 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 21:17:56,725 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 21:17:56,725 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 21:17:56,725 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 21:17:56,725 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 21:17:56,726 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 21:17:56,726 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 21:17:56,726 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 21:17:56,726 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 21:17:56,726 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 21:17:56,726 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 21:17:56,727 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 21:17:56,727 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 21:17:56,727 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 21:17:56,727 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 21:17:56,727 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 21:17:56,727 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 21:17:56,728 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 21:17:56,728 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 21:17:56,728 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptVerify_spec__1 [2019-10-13 21:17:56,728 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 21:17:56,729 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 21:17:56,729 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 21:17:56,729 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 21:17:56,729 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 21:17:56,729 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 21:17:56,729 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 21:17:56,730 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 21:17:56,731 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 21:17:56,731 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 21:17:56,731 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 21:17:56,731 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 21:17:56,731 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 21:17:56,732 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 21:17:56,733 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 21:17:56,733 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 21:17:56,733 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 21:17:56,733 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 21:17:56,733 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 21:17:56,734 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 21:17:56,734 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:17:56,735 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 21:17:56,736 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 21:17:56,736 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 21:17:56,736 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 21:17:56,736 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 21:17:56,736 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 21:17:56,736 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 21:17:56,737 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 21:17:56,737 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 21:17:56,737 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-13 21:17:56,737 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-13 21:17:56,737 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-13 21:17:56,737 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 21:17:56,738 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 21:17:56,738 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 21:17:56,738 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 21:17:56,738 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 21:17:56,738 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 21:17:56,738 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 21:17:56,739 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 21:17:56,739 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 21:17:56,739 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 21:17:56,739 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 21:17:56,739 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 21:17:56,740 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 21:17:56,740 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 21:17:56,740 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 21:17:56,740 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 21:17:56,740 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 21:17:56,741 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 21:17:56,741 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 21:17:56,741 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 21:17:56,742 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 21:17:56,742 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 21:17:56,743 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:17:56,743 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 21:17:56,743 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 21:17:56,745 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 21:17:56,745 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 21:17:56,745 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 21:17:56,745 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 21:17:56,745 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 21:17:56,745 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 21:17:56,746 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 21:17:56,746 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 21:17:56,747 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 21:17:56,747 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 21:17:56,747 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 21:17:56,747 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 21:17:56,748 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 21:17:56,752 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 21:17:56,752 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 21:17:56,752 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 21:17:56,753 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 21:17:56,753 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-13 21:17:56,754 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-13 21:17:56,754 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 21:17:56,762 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 21:17:56,762 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 21:17:56,762 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 21:17:56,762 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 21:17:56,762 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 21:17:56,763 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 21:17:56,763 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 21:17:56,763 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 21:17:56,763 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 21:17:56,763 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 21:17:56,763 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 21:17:56,764 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 21:17:56,764 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 21:17:56,764 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 21:17:56,765 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 21:17:56,765 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 21:17:56,765 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 21:17:56,766 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 21:17:56,766 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 21:17:56,766 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 21:17:56,766 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 21:17:56,766 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 21:17:56,766 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 21:17:56,767 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 21:17:56,767 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 21:17:56,767 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 21:17:56,767 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 21:17:56,767 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-13 21:17:56,767 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-13 21:17:56,768 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-13 21:17:56,768 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-13 21:17:56,768 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-13 21:17:56,768 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 21:17:56,768 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-13 21:17:56,769 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-13 21:17:56,769 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-13 21:17:56,769 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-13 21:17:56,769 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-13 21:17:56,769 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-13 21:17:56,769 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptVerify_spec__1 [2019-10-13 21:17:56,770 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 21:17:56,770 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 21:17:56,770 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 21:17:56,770 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 21:17:56,770 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 21:17:56,771 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 21:17:56,771 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 21:17:56,771 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 21:17:56,771 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 21:17:56,771 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 21:17:56,771 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 21:17:56,772 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 21:17:56,772 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 21:17:56,772 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 21:17:56,772 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 21:17:56,772 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 21:17:56,772 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 21:17:56,773 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 21:17:56,773 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 21:17:56,773 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 21:17:56,773 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 21:17:56,773 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 21:17:56,774 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 21:17:56,774 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 21:17:56,776 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 21:17:56,776 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 21:17:56,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 21:17:56,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 21:17:56,776 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 21:17:56,777 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 21:17:56,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 21:17:56,777 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 21:17:56,777 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 21:17:56,777 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 21:17:56,778 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 21:17:56,778 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 21:17:56,778 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 21:17:56,778 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 21:17:56,778 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 21:17:56,778 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 21:17:56,779 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 21:17:56,779 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 21:17:56,779 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 21:17:56,779 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 21:17:56,779 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 21:17:56,780 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 21:17:56,780 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 21:17:56,780 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 21:17:56,780 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:17:56,780 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 21:17:56,780 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 21:17:56,781 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 21:17:56,781 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 21:17:56,781 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 21:17:56,781 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 21:17:56,781 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 21:17:56,781 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 21:17:56,782 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 21:17:56,782 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-13 21:17:56,782 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-13 21:17:56,782 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-13 21:17:56,782 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 21:17:56,783 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 21:17:56,783 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 21:17:56,783 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 21:17:56,783 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 21:17:56,783 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 21:17:56,783 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 21:17:56,784 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 21:17:56,784 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 21:17:56,784 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:17:56,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 21:17:56,784 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:17:59,140 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:17:59,142 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 21:17:59,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:17:59 BoogieIcfgContainer [2019-10-13 21:17:59,145 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:17:59,147 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:17:59,147 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:17:59,153 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:17:59,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:17:55" (1/3) ... [2019-10-13 21:17:59,155 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3751d72a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:17:59, skipping insertion in model container [2019-10-13 21:17:59,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:56" (2/3) ... [2019-10-13 21:17:59,163 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3751d72a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:17:59, skipping insertion in model container [2019-10-13 21:17:59,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:17:59" (3/3) ... [2019-10-13 21:17:59,165 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec7_product35.cil.c [2019-10-13 21:17:59,176 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:17:59,189 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:17:59,202 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:17:59,238 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:17:59,239 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:17:59,239 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:17:59,239 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:17:59,239 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:17:59,239 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:17:59,239 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:17:59,240 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:17:59,275 INFO L276 IsEmpty]: Start isEmpty. Operand 679 states. [2019-10-13 21:17:59,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2019-10-13 21:17:59,309 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:59,311 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:59,314 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:59,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:59,321 INFO L82 PathProgramCache]: Analyzing trace with hash 704600627, now seen corresponding path program 1 times [2019-10-13 21:17:59,330 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:59,331 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984750703] [2019-10-13 21:17:59,331 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:59,331 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:59,331 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:59,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:00,064 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-13 21:18:00,064 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984750703] [2019-10-13 21:18:00,066 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:00,066 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 21:18:00,067 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494069855] [2019-10-13 21:18:00,073 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 21:18:00,075 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:00,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 21:18:00,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:18:00,093 INFO L87 Difference]: Start difference. First operand 679 states. Second operand 2 states. [2019-10-13 21:18:00,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:00,198 INFO L93 Difference]: Finished difference Result 1033 states and 1392 transitions. [2019-10-13 21:18:00,198 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 21:18:00,200 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 191 [2019-10-13 21:18:00,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:00,227 INFO L225 Difference]: With dead ends: 1033 [2019-10-13 21:18:00,227 INFO L226 Difference]: Without dead ends: 650 [2019-10-13 21:18:00,237 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:18:00,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 650 states. [2019-10-13 21:18:00,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 650 to 650. [2019-10-13 21:18:00,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 650 states. [2019-10-13 21:18:00,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 880 transitions. [2019-10-13 21:18:00,377 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 880 transitions. Word has length 191 [2019-10-13 21:18:00,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:00,379 INFO L462 AbstractCegarLoop]: Abstraction has 650 states and 880 transitions. [2019-10-13 21:18:00,379 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 21:18:00,379 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 880 transitions. [2019-10-13 21:18:00,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2019-10-13 21:18:00,386 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:00,386 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:00,386 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:00,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:00,387 INFO L82 PathProgramCache]: Analyzing trace with hash 1790532570, now seen corresponding path program 1 times [2019-10-13 21:18:00,387 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:00,387 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359053551] [2019-10-13 21:18:00,387 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:00,387 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:00,388 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:00,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:00,685 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-13 21:18:00,686 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359053551] [2019-10-13 21:18:00,686 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:00,687 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:18:00,687 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675897485] [2019-10-13 21:18:00,692 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:18:00,693 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:00,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:18:00,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:18:00,693 INFO L87 Difference]: Start difference. First operand 650 states and 880 transitions. Second operand 3 states. [2019-10-13 21:18:00,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:00,791 INFO L93 Difference]: Finished difference Result 1016 states and 1354 transitions. [2019-10-13 21:18:00,792 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:18:00,792 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 192 [2019-10-13 21:18:00,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:00,804 INFO L225 Difference]: With dead ends: 1016 [2019-10-13 21:18:00,804 INFO L226 Difference]: Without dead ends: 653 [2019-10-13 21:18:00,810 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:18:00,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 653 states. [2019-10-13 21:18:00,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 653 to 652. [2019-10-13 21:18:00,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 652 states. [2019-10-13 21:18:00,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 652 states to 652 states and 882 transitions. [2019-10-13 21:18:00,864 INFO L78 Accepts]: Start accepts. Automaton has 652 states and 882 transitions. Word has length 192 [2019-10-13 21:18:00,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:00,865 INFO L462 AbstractCegarLoop]: Abstraction has 652 states and 882 transitions. [2019-10-13 21:18:00,865 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:18:00,865 INFO L276 IsEmpty]: Start isEmpty. Operand 652 states and 882 transitions. [2019-10-13 21:18:00,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2019-10-13 21:18:00,870 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:00,870 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:00,870 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:00,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:00,871 INFO L82 PathProgramCache]: Analyzing trace with hash 94265161, now seen corresponding path program 1 times [2019-10-13 21:18:00,871 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:00,871 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921375713] [2019-10-13 21:18:00,871 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:00,871 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:00,872 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:00,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:01,055 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-13 21:18:01,056 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921375713] [2019-10-13 21:18:01,056 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:01,056 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:18:01,057 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120156487] [2019-10-13 21:18:01,059 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:18:01,062 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:01,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:18:01,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:18:01,063 INFO L87 Difference]: Start difference. First operand 652 states and 882 transitions. Second operand 3 states. [2019-10-13 21:18:01,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:01,176 INFO L93 Difference]: Finished difference Result 1284 states and 1768 transitions. [2019-10-13 21:18:01,177 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:18:01,177 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 204 [2019-10-13 21:18:01,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:01,183 INFO L225 Difference]: With dead ends: 1284 [2019-10-13 21:18:01,183 INFO L226 Difference]: Without dead ends: 697 [2019-10-13 21:18:01,186 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:18:01,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2019-10-13 21:18:01,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 696. [2019-10-13 21:18:01,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 696 states. [2019-10-13 21:18:01,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 957 transitions. [2019-10-13 21:18:01,216 INFO L78 Accepts]: Start accepts. Automaton has 696 states and 957 transitions. Word has length 204 [2019-10-13 21:18:01,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:01,217 INFO L462 AbstractCegarLoop]: Abstraction has 696 states and 957 transitions. [2019-10-13 21:18:01,217 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:18:01,217 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states and 957 transitions. [2019-10-13 21:18:01,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2019-10-13 21:18:01,222 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:01,222 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:01,222 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:01,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:01,223 INFO L82 PathProgramCache]: Analyzing trace with hash -1429937952, now seen corresponding path program 1 times [2019-10-13 21:18:01,223 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:01,223 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588086329] [2019-10-13 21:18:01,223 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:01,223 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:01,224 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:01,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:01,419 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-13 21:18:01,419 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588086329] [2019-10-13 21:18:01,420 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:01,420 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:18:01,420 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723693939] [2019-10-13 21:18:01,421 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:18:01,421 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:01,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:18:01,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:18:01,422 INFO L87 Difference]: Start difference. First operand 696 states and 957 transitions. Second operand 3 states. [2019-10-13 21:18:01,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:01,471 INFO L93 Difference]: Finished difference Result 1413 states and 1988 transitions. [2019-10-13 21:18:01,471 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:18:01,472 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 205 [2019-10-13 21:18:01,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:01,481 INFO L225 Difference]: With dead ends: 1413 [2019-10-13 21:18:01,482 INFO L226 Difference]: Without dead ends: 782 [2019-10-13 21:18:01,484 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:18:01,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 782 states. [2019-10-13 21:18:01,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 782 to 781. [2019-10-13 21:18:01,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 781 states. [2019-10-13 21:18:01,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 781 states to 781 states and 1101 transitions. [2019-10-13 21:18:01,520 INFO L78 Accepts]: Start accepts. Automaton has 781 states and 1101 transitions. Word has length 205 [2019-10-13 21:18:01,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:01,520 INFO L462 AbstractCegarLoop]: Abstraction has 781 states and 1101 transitions. [2019-10-13 21:18:01,521 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:18:01,521 INFO L276 IsEmpty]: Start isEmpty. Operand 781 states and 1101 transitions. [2019-10-13 21:18:01,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2019-10-13 21:18:01,525 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:01,526 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:01,526 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:01,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:01,526 INFO L82 PathProgramCache]: Analyzing trace with hash 1523480998, now seen corresponding path program 1 times [2019-10-13 21:18:01,526 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:01,527 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133605176] [2019-10-13 21:18:01,527 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:01,528 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:01,528 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:01,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:02,085 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2019-10-13 21:18:02,085 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133605176] [2019-10-13 21:18:02,086 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:02,086 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-10-13 21:18:02,086 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983089142] [2019-10-13 21:18:02,087 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-10-13 21:18:02,087 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:02,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-10-13 21:18:02,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2019-10-13 21:18:02,088 INFO L87 Difference]: Start difference. First operand 781 states and 1101 transitions. Second operand 19 states. [2019-10-13 21:18:07,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:07,473 INFO L93 Difference]: Finished difference Result 2645 states and 3732 transitions. [2019-10-13 21:18:07,473 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2019-10-13 21:18:07,473 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 208 [2019-10-13 21:18:07,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:07,490 INFO L225 Difference]: With dead ends: 2645 [2019-10-13 21:18:07,490 INFO L226 Difference]: Without dead ends: 2295 [2019-10-13 21:18:07,494 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 708 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=2683, Unknown=0, NotChecked=0, Total=2970 [2019-10-13 21:18:07,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2295 states. [2019-10-13 21:18:07,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2295 to 2258. [2019-10-13 21:18:07,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2258 states. [2019-10-13 21:18:07,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2258 states to 2258 states and 3200 transitions. [2019-10-13 21:18:07,624 INFO L78 Accepts]: Start accepts. Automaton has 2258 states and 3200 transitions. Word has length 208 [2019-10-13 21:18:07,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:07,625 INFO L462 AbstractCegarLoop]: Abstraction has 2258 states and 3200 transitions. [2019-10-13 21:18:07,625 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-10-13 21:18:07,625 INFO L276 IsEmpty]: Start isEmpty. Operand 2258 states and 3200 transitions. [2019-10-13 21:18:07,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2019-10-13 21:18:07,633 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:07,634 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:07,634 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:07,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:07,634 INFO L82 PathProgramCache]: Analyzing trace with hash -1121180023, now seen corresponding path program 1 times [2019-10-13 21:18:07,635 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:07,635 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594501836] [2019-10-13 21:18:07,635 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:07,635 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:07,635 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:07,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:07,909 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:18:07,910 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594501836] [2019-10-13 21:18:07,910 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:07,910 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-10-13 21:18:07,910 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400893262] [2019-10-13 21:18:07,911 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-13 21:18:07,911 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:07,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-13 21:18:07,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2019-10-13 21:18:07,912 INFO L87 Difference]: Start difference. First operand 2258 states and 3200 transitions. Second operand 13 states. [2019-10-13 21:18:08,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:08,721 INFO L93 Difference]: Finished difference Result 3859 states and 5423 transitions. [2019-10-13 21:18:08,722 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-13 21:18:08,722 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 209 [2019-10-13 21:18:08,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:08,737 INFO L225 Difference]: With dead ends: 3859 [2019-10-13 21:18:08,738 INFO L226 Difference]: Without dead ends: 2392 [2019-10-13 21:18:08,743 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=433, Unknown=0, NotChecked=0, Total=506 [2019-10-13 21:18:08,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2392 states. [2019-10-13 21:18:08,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2392 to 2392. [2019-10-13 21:18:08,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2392 states. [2019-10-13 21:18:08,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2392 states to 2392 states and 3417 transitions. [2019-10-13 21:18:08,865 INFO L78 Accepts]: Start accepts. Automaton has 2392 states and 3417 transitions. Word has length 209 [2019-10-13 21:18:08,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:08,865 INFO L462 AbstractCegarLoop]: Abstraction has 2392 states and 3417 transitions. [2019-10-13 21:18:08,865 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-10-13 21:18:08,866 INFO L276 IsEmpty]: Start isEmpty. Operand 2392 states and 3417 transitions. [2019-10-13 21:18:08,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2019-10-13 21:18:08,873 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:08,873 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:08,874 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:08,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:08,874 INFO L82 PathProgramCache]: Analyzing trace with hash -1128009189, now seen corresponding path program 1 times [2019-10-13 21:18:08,874 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:08,875 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158190861] [2019-10-13 21:18:08,875 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:08,875 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:08,875 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:08,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:09,176 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2019-10-13 21:18:09,177 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158190861] [2019-10-13 21:18:09,177 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:09,177 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2019-10-13 21:18:09,177 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920481189] [2019-10-13 21:18:09,178 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-10-13 21:18:09,178 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:09,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-10-13 21:18:09,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2019-10-13 21:18:09,179 INFO L87 Difference]: Start difference. First operand 2392 states and 3417 transitions. Second operand 15 states. [2019-10-13 21:18:13,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:13,768 INFO L93 Difference]: Finished difference Result 4031 states and 5718 transitions. [2019-10-13 21:18:13,772 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2019-10-13 21:18:13,772 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 209 [2019-10-13 21:18:13,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:13,787 INFO L225 Difference]: With dead ends: 4031 [2019-10-13 21:18:13,787 INFO L226 Difference]: Without dead ends: 2510 [2019-10-13 21:18:13,794 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 513 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=229, Invalid=1933, Unknown=0, NotChecked=0, Total=2162 [2019-10-13 21:18:13,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2510 states. [2019-10-13 21:18:13,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2510 to 2473. [2019-10-13 21:18:13,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2473 states. [2019-10-13 21:18:13,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2473 states to 2473 states and 3557 transitions. [2019-10-13 21:18:13,929 INFO L78 Accepts]: Start accepts. Automaton has 2473 states and 3557 transitions. Word has length 209 [2019-10-13 21:18:13,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:13,930 INFO L462 AbstractCegarLoop]: Abstraction has 2473 states and 3557 transitions. [2019-10-13 21:18:13,930 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-10-13 21:18:13,930 INFO L276 IsEmpty]: Start isEmpty. Operand 2473 states and 3557 transitions. [2019-10-13 21:18:13,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2019-10-13 21:18:13,939 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:13,940 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:13,940 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:13,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:13,941 INFO L82 PathProgramCache]: Analyzing trace with hash -151920076, now seen corresponding path program 1 times [2019-10-13 21:18:13,941 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:13,941 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802821909] [2019-10-13 21:18:13,942 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:13,942 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:13,942 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:13,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:14,320 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2019-10-13 21:18:14,321 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802821909] [2019-10-13 21:18:14,321 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:14,321 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2019-10-13 21:18:14,322 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917310924] [2019-10-13 21:18:14,323 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-10-13 21:18:14,324 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:14,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-10-13 21:18:14,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2019-10-13 21:18:14,325 INFO L87 Difference]: Start difference. First operand 2473 states and 3557 transitions. Second operand 18 states. [2019-10-13 21:18:15,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:15,022 INFO L93 Difference]: Finished difference Result 4142 states and 5883 transitions. [2019-10-13 21:18:15,023 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-10-13 21:18:15,023 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 209 [2019-10-13 21:18:15,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:15,045 INFO L225 Difference]: With dead ends: 4142 [2019-10-13 21:18:15,045 INFO L226 Difference]: Without dead ends: 2520 [2019-10-13 21:18:15,055 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2019-10-13 21:18:15,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2520 states. [2019-10-13 21:18:15,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2520 to 2518. [2019-10-13 21:18:15,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2518 states. [2019-10-13 21:18:15,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2518 states to 2518 states and 3597 transitions. [2019-10-13 21:18:15,233 INFO L78 Accepts]: Start accepts. Automaton has 2518 states and 3597 transitions. Word has length 209 [2019-10-13 21:18:15,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:15,233 INFO L462 AbstractCegarLoop]: Abstraction has 2518 states and 3597 transitions. [2019-10-13 21:18:15,234 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-10-13 21:18:15,234 INFO L276 IsEmpty]: Start isEmpty. Operand 2518 states and 3597 transitions. [2019-10-13 21:18:15,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2019-10-13 21:18:15,244 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:15,245 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:15,245 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:15,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:15,245 INFO L82 PathProgramCache]: Analyzing trace with hash 712856251, now seen corresponding path program 1 times [2019-10-13 21:18:15,246 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:15,246 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716212119] [2019-10-13 21:18:15,246 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:15,246 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:15,246 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:15,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:15,482 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:18:15,483 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716212119] [2019-10-13 21:18:15,484 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:15,484 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 21:18:15,485 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099348224] [2019-10-13 21:18:15,485 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 21:18:15,486 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:15,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 21:18:15,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 21:18:15,486 INFO L87 Difference]: Start difference. First operand 2518 states and 3597 transitions. Second operand 5 states. [2019-10-13 21:18:16,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:16,979 INFO L93 Difference]: Finished difference Result 6256 states and 8984 transitions. [2019-10-13 21:18:16,980 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 21:18:16,980 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 209 [2019-10-13 21:18:16,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:17,018 INFO L225 Difference]: With dead ends: 6256 [2019-10-13 21:18:17,019 INFO L226 Difference]: Without dead ends: 5419 [2019-10-13 21:18:17,027 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-13 21:18:17,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5419 states. [2019-10-13 21:18:17,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5419 to 5405. [2019-10-13 21:18:17,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5405 states. [2019-10-13 21:18:17,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5405 states to 5405 states and 7765 transitions. [2019-10-13 21:18:17,370 INFO L78 Accepts]: Start accepts. Automaton has 5405 states and 7765 transitions. Word has length 209 [2019-10-13 21:18:17,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:17,372 INFO L462 AbstractCegarLoop]: Abstraction has 5405 states and 7765 transitions. [2019-10-13 21:18:17,372 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 21:18:17,372 INFO L276 IsEmpty]: Start isEmpty. Operand 5405 states and 7765 transitions. [2019-10-13 21:18:17,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2019-10-13 21:18:17,386 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:17,386 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:17,386 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:17,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:17,387 INFO L82 PathProgramCache]: Analyzing trace with hash 733193626, now seen corresponding path program 1 times [2019-10-13 21:18:17,387 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:17,387 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360273914] [2019-10-13 21:18:17,387 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:17,388 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:17,388 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:17,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:17,606 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:18:17,607 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360273914] [2019-10-13 21:18:17,607 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:17,607 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 21:18:17,607 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178459115] [2019-10-13 21:18:17,610 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 21:18:17,611 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:17,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 21:18:17,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 21:18:17,611 INFO L87 Difference]: Start difference. First operand 5405 states and 7765 transitions. Second operand 7 states. [2019-10-13 21:18:20,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:20,247 INFO L93 Difference]: Finished difference Result 17958 states and 28157 transitions. [2019-10-13 21:18:20,247 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-13 21:18:20,247 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 209 [2019-10-13 21:18:20,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:20,343 INFO L225 Difference]: With dead ends: 17958 [2019-10-13 21:18:20,343 INFO L226 Difference]: Without dead ends: 13827 [2019-10-13 21:18:20,368 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2019-10-13 21:18:20,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13827 states. [2019-10-13 21:18:20,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13827 to 13821. [2019-10-13 21:18:20,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13821 states. [2019-10-13 21:18:21,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13821 states to 13821 states and 21317 transitions. [2019-10-13 21:18:21,008 INFO L78 Accepts]: Start accepts. Automaton has 13821 states and 21317 transitions. Word has length 209 [2019-10-13 21:18:21,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:21,008 INFO L462 AbstractCegarLoop]: Abstraction has 13821 states and 21317 transitions. [2019-10-13 21:18:21,009 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 21:18:21,009 INFO L276 IsEmpty]: Start isEmpty. Operand 13821 states and 21317 transitions. [2019-10-13 21:18:21,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2019-10-13 21:18:21,021 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:21,021 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:21,021 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:21,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:21,022 INFO L82 PathProgramCache]: Analyzing trace with hash 588620997, now seen corresponding path program 1 times [2019-10-13 21:18:21,022 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:21,022 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520170091] [2019-10-13 21:18:21,022 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:21,023 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:21,023 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:21,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:22,161 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:18:22,162 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520170091] [2019-10-13 21:18:22,162 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:22,162 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2019-10-13 21:18:22,162 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720612723] [2019-10-13 21:18:22,163 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2019-10-13 21:18:22,163 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:22,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2019-10-13 21:18:22,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=703, Unknown=0, NotChecked=0, Total=756 [2019-10-13 21:18:22,164 INFO L87 Difference]: Start difference. First operand 13821 states and 21317 transitions. Second operand 28 states. [2019-10-13 21:18:23,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:23,462 INFO L93 Difference]: Finished difference Result 26809 states and 42219 transitions. [2019-10-13 21:18:23,463 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2019-10-13 21:18:23,463 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 210 [2019-10-13 21:18:23,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:23,552 INFO L225 Difference]: With dead ends: 26809 [2019-10-13 21:18:23,553 INFO L226 Difference]: Without dead ends: 14262 [2019-10-13 21:18:23,613 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=101, Invalid=1459, Unknown=0, NotChecked=0, Total=1560 [2019-10-13 21:18:23,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14262 states. [2019-10-13 21:18:24,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14262 to 14229. [2019-10-13 21:18:24,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14229 states. [2019-10-13 21:18:24,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14229 states to 14229 states and 21846 transitions. [2019-10-13 21:18:24,470 INFO L78 Accepts]: Start accepts. Automaton has 14229 states and 21846 transitions. Word has length 210 [2019-10-13 21:18:24,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:24,471 INFO L462 AbstractCegarLoop]: Abstraction has 14229 states and 21846 transitions. [2019-10-13 21:18:24,471 INFO L463 AbstractCegarLoop]: Interpolant automaton has 28 states. [2019-10-13 21:18:24,471 INFO L276 IsEmpty]: Start isEmpty. Operand 14229 states and 21846 transitions. [2019-10-13 21:18:24,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2019-10-13 21:18:24,482 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:24,483 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:24,483 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:24,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:24,483 INFO L82 PathProgramCache]: Analyzing trace with hash -410361531, now seen corresponding path program 1 times [2019-10-13 21:18:24,484 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:24,484 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883869584] [2019-10-13 21:18:24,484 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:24,484 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:24,484 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:24,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:24,726 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:18:24,726 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883869584] [2019-10-13 21:18:24,726 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:24,727 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-13 21:18:24,727 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667716722] [2019-10-13 21:18:24,728 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-13 21:18:24,728 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:24,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-13 21:18:24,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-13 21:18:24,728 INFO L87 Difference]: Start difference. First operand 14229 states and 21846 transitions. Second operand 10 states. [2019-10-13 21:18:25,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:25,100 INFO L93 Difference]: Finished difference Result 14352 states and 22078 transitions. [2019-10-13 21:18:25,101 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-13 21:18:25,101 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 214 [2019-10-13 21:18:25,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:25,384 INFO L225 Difference]: With dead ends: 14352 [2019-10-13 21:18:25,384 INFO L226 Difference]: Without dead ends: 14349 [2019-10-13 21:18:25,393 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-13 21:18:25,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14349 states. [2019-10-13 21:18:25,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14349 to 14349. [2019-10-13 21:18:25,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14349 states. [2019-10-13 21:18:26,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14349 states to 14349 states and 22036 transitions. [2019-10-13 21:18:26,030 INFO L78 Accepts]: Start accepts. Automaton has 14349 states and 22036 transitions. Word has length 214 [2019-10-13 21:18:26,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:26,031 INFO L462 AbstractCegarLoop]: Abstraction has 14349 states and 22036 transitions. [2019-10-13 21:18:26,031 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-13 21:18:26,031 INFO L276 IsEmpty]: Start isEmpty. Operand 14349 states and 22036 transitions. [2019-10-13 21:18:26,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2019-10-13 21:18:26,043 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:26,043 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:26,043 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:26,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:26,044 INFO L82 PathProgramCache]: Analyzing trace with hash -180221892, now seen corresponding path program 1 times [2019-10-13 21:18:26,044 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:26,044 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476299374] [2019-10-13 21:18:26,044 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:26,045 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:26,045 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:26,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:26,241 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:18:26,241 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476299374] [2019-10-13 21:18:26,241 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:26,242 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 21:18:26,242 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180781592] [2019-10-13 21:18:26,242 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 21:18:26,243 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:26,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 21:18:26,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 21:18:26,244 INFO L87 Difference]: Start difference. First operand 14349 states and 22036 transitions. Second operand 5 states. [2019-10-13 21:18:26,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:26,644 INFO L93 Difference]: Finished difference Result 27703 states and 43155 transitions. [2019-10-13 21:18:26,644 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 21:18:26,644 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 219 [2019-10-13 21:18:26,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted.