java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/product-lines/email_spec6_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 21:17:34,979 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:17:34,982 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:17:35,000 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:17:35,000 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:17:35,001 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:17:35,002 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:17:35,004 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:17:35,006 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:17:35,007 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:17:35,008 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:17:35,009 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:17:35,009 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:17:35,010 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:17:35,011 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:17:35,013 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:17:35,013 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:17:35,014 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:17:35,016 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:17:35,018 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:17:35,019 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:17:35,020 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:17:35,021 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:17:35,022 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:17:35,024 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 21:17:35,024 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 21:17:35,025 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 21:17:35,025 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 21:17:35,026 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 21:17:35,027 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 21:17:35,027 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 21:17:35,028 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 21:17:35,029 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 21:17:35,029 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 21:17:35,030 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 21:17:35,031 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 21:17:35,031 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 21:17:35,032 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 21:17:35,032 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:17:35,033 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:17:35,033 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:17:35,034 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 21:17:35,049 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:17:35,049 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:17:35,050 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:17:35,051 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:17:35,051 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:17:35,051 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:17:35,052 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:17:35,052 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:17:35,052 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:17:35,052 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:17:35,052 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:17:35,053 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:17:35,053 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:17:35,053 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:17:35,053 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:17:35,053 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:17:35,053 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:17:35,054 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:17:35,054 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:17:35,054 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:17:35,054 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:17:35,055 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:17:35,055 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:17:35,055 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:17:35,055 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:17:35,055 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:17:35,056 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:17:35,056 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:17:35,056 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 21:17:35,368 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:17:35,384 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:17:35,388 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:17:35,390 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:17:35,390 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:17:35,391 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec6_product35.cil.c [2019-10-13 21:17:35,457 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c04d62b7/885f17847d7947109799b3741492fda5/FLAG24bb5fa07 [2019-10-13 21:17:36,129 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:17:36,131 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec6_product35.cil.c [2019-10-13 21:17:36,169 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c04d62b7/885f17847d7947109799b3741492fda5/FLAG24bb5fa07 [2019-10-13 21:17:36,324 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c04d62b7/885f17847d7947109799b3741492fda5 [2019-10-13 21:17:36,336 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:17:36,338 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:17:36,340 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:17:36,341 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:17:36,345 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:17:36,346 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:17:36" (1/1) ... [2019-10-13 21:17:36,349 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c5381d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:36, skipping insertion in model container [2019-10-13 21:17:36,350 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:17:36" (1/1) ... [2019-10-13 21:17:36,359 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:17:36,452 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:17:37,212 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:17:37,229 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:17:37,402 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:17:37,539 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:17:37,540 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:37 WrapperNode [2019-10-13 21:17:37,540 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:17:37,541 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:17:37,541 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:17:37,541 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:17:37,552 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:37" (1/1) ... [2019-10-13 21:17:37,552 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:37" (1/1) ... [2019-10-13 21:17:37,591 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:37" (1/1) ... [2019-10-13 21:17:37,591 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:37" (1/1) ... [2019-10-13 21:17:37,656 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:37" (1/1) ... [2019-10-13 21:17:37,688 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:37" (1/1) ... [2019-10-13 21:17:37,704 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:37" (1/1) ... [2019-10-13 21:17:37,724 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:17:37,724 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:17:37,725 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:17:37,726 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:17:37,727 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:37" (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 21:17:37,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:17:37,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:17:37,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 21:17:37,821 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 21:17:37,821 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 21:17:37,821 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-13 21:17:37,821 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-13 21:17:37,821 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 21:17:37,822 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 21:17:37,822 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-13 21:17:37,822 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-13 21:17:37,822 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-13 21:17:37,823 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-13 21:17:37,823 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 21:17:37,823 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 21:17:37,823 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 21:17:37,823 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 21:17:37,824 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 21:17:37,824 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 21:17:37,824 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 21:17:37,824 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 21:17:37,825 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 21:17:37,825 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-13 21:17:37,825 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-13 21:17:37,825 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-13 21:17:37,825 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-13 21:17:37,826 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-13 21:17:37,826 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 21:17:37,826 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 21:17:37,826 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 21:17:37,826 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 21:17:37,826 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 21:17:37,827 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 21:17:37,827 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 21:17:37,827 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 21:17:37,827 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 21:17:37,827 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:17:37,827 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 21:17:37,827 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 21:17:37,828 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 21:17:37,828 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 21:17:37,828 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 21:17:37,828 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 21:17:37,828 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 21:17:37,828 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 21:17:37,829 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 21:17:37,829 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-13 21:17:37,829 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-13 21:17:37,829 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-13 21:17:37,829 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-13 21:17:37,829 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-13 21:17:37,830 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 21:17:37,830 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 21:17:37,830 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-13 21:17:37,830 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-13 21:17:37,830 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 21:17:37,830 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 21:17:37,831 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 21:17:37,831 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 21:17:37,831 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 21:17:37,831 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 21:17:37,831 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 21:17:37,831 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 21:17:37,832 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 21:17:37,832 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 21:17:37,832 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 21:17:37,832 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 21:17:37,832 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 21:17:37,832 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 21:17:37,833 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 21:17:37,833 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 21:17:37,833 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 21:17:37,833 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 21:17:37,833 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 21:17:37,833 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 21:17:37,833 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 21:17:37,834 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 21:17:37,834 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 21:17:37,834 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 21:17:37,834 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 21:17:37,834 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 21:17:37,834 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 21:17:37,835 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 21:17:37,835 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 21:17:37,835 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 21:17:37,835 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 21:17:37,835 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 21:17:37,835 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 21:17:37,836 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 21:17:37,836 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 21:17:37,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 21:17:37,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 21:17:37,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 21:17:37,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 21:17:37,837 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 21:17:37,837 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 21:17:37,837 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 21:17:37,837 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 21:17:37,837 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 21:17:37,837 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 21:17:37,838 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 21:17:37,838 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 21:17:37,838 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 21:17:37,838 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 21:17:37,838 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 21:17:37,838 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 21:17:37,838 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 21:17:37,839 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 21:17:37,839 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 21:17:37,839 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 21:17:37,839 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 21:17:37,839 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 21:17:37,839 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 21:17:37,840 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 21:17:37,840 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 21:17:37,840 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 21:17:37,840 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 21:17:37,840 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 21:17:37,840 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 21:17:37,841 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 21:17:37,841 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 21:17:37,841 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 21:17:37,841 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:17:37,841 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 21:17:37,841 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 21:17:37,842 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 21:17:37,842 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 21:17:37,842 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 21:17:37,842 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 21:17:37,842 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 21:17:37,843 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 21:17:37,843 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 21:17:37,843 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 21:17:37,843 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 21:17:37,843 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 21:17:37,844 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 21:17:37,844 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 21:17:37,844 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 21:17:37,844 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 21:17:37,844 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 21:17:37,844 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 21:17:37,845 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 21:17:37,845 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 21:17:37,845 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 21:17:37,845 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 21:17:37,845 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 21:17:37,846 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 21:17:37,846 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 21:17:37,846 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 21:17:37,846 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 21:17:37,846 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 21:17:37,847 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 21:17:37,847 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 21:17:37,847 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 21:17:37,847 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 21:17:37,847 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 21:17:37,847 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 21:17:37,848 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 21:17:37,848 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 21:17:37,848 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 21:17:37,848 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 21:17:37,848 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 21:17:37,848 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 21:17:37,849 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-13 21:17:37,849 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-13 21:17:37,849 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-13 21:17:37,849 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-13 21:17:37,849 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-13 21:17:37,849 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-13 21:17:37,850 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 21:17:37,850 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 21:17:37,850 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-13 21:17:37,850 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-13 21:17:37,850 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-13 21:17:37,851 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-13 21:17:37,851 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-13 21:17:37,851 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-13 21:17:37,851 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-13 21:17:37,851 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 21:17:37,852 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 21:17:37,852 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 21:17:37,852 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 21:17:37,852 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 21:17:37,852 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 21:17:37,852 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 21:17:37,852 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 21:17:37,853 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 21:17:37,853 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 21:17:37,853 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 21:17:37,853 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 21:17:37,853 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 21:17:37,853 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 21:17:37,854 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 21:17:37,854 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 21:17:37,854 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 21:17:37,854 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 21:17:37,854 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 21:17:37,854 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 21:17:37,855 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 21:17:37,855 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:17:37,855 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 21:17:37,855 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 21:17:37,855 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 21:17:37,855 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 21:17:37,856 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 21:17:37,856 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 21:17:37,856 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 21:17:37,856 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 21:17:37,856 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 21:17:37,856 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-13 21:17:37,857 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-13 21:17:37,857 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-13 21:17:37,857 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 21:17:37,857 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 21:17:37,857 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 21:17:37,857 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 21:17:37,858 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 21:17:37,858 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 21:17:37,858 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 21:17:37,858 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 21:17:37,858 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-13 21:17:37,859 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-13 21:17:37,859 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 21:17:37,859 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 21:17:37,859 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 21:17:37,859 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 21:17:37,859 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 21:17:37,860 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 21:17:37,860 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 21:17:37,860 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 21:17:37,860 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 21:17:37,860 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 21:17:37,860 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 21:17:37,861 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 21:17:37,861 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 21:17:37,861 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 21:17:37,861 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 21:17:37,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 21:17:37,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 21:17:37,862 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 21:17:37,862 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 21:17:37,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 21:17:37,862 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 21:17:37,862 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 21:17:37,862 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 21:17:37,863 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 21:17:37,863 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 21:17:37,863 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 21:17:37,863 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 21:17:37,863 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 21:17:37,863 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 21:17:37,864 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 21:17:37,864 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 21:17:37,864 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 21:17:37,864 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 21:17:37,864 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 21:17:37,864 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:17:37,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 21:17:37,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:17:40,552 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:17:40,552 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 21:17:40,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:17:40 BoogieIcfgContainer [2019-10-13 21:17:40,555 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:17:40,559 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:17:40,559 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:17:40,567 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:17:40,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:17:36" (1/3) ... [2019-10-13 21:17:40,569 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65318795 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:17:40, skipping insertion in model container [2019-10-13 21:17:40,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:37" (2/3) ... [2019-10-13 21:17:40,570 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65318795 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:17:40, skipping insertion in model container [2019-10-13 21:17:40,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:17:40" (3/3) ... [2019-10-13 21:17:40,572 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec6_product35.cil.c [2019-10-13 21:17:40,595 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:17:40,618 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:17:40,631 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:17:40,679 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:17:40,679 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:17:40,679 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:17:40,679 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:17:40,679 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:17:40,680 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:17:40,680 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:17:40,680 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:17:40,726 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states. [2019-10-13 21:17:40,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2019-10-13 21:17:40,763 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:40,764 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] [2019-10-13 21:17:40,771 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:40,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:40,779 INFO L82 PathProgramCache]: Analyzing trace with hash -711590193, now seen corresponding path program 1 times [2019-10-13 21:17:40,791 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:40,791 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889152479] [2019-10-13 21:17:40,792 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:40,792 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:40,792 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:41,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:41,603 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-13 21:17:41,604 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889152479] [2019-10-13 21:17:41,605 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:41,605 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 21:17:41,605 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288610246] [2019-10-13 21:17:41,612 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 21:17:41,614 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:41,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 21:17:41,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:17:41,632 INFO L87 Difference]: Start difference. First operand 691 states. Second operand 2 states. [2019-10-13 21:17:41,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:41,757 INFO L93 Difference]: Finished difference Result 1057 states and 1422 transitions. [2019-10-13 21:17:41,757 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 21:17:41,763 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 198 [2019-10-13 21:17:41,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:41,812 INFO L225 Difference]: With dead ends: 1057 [2019-10-13 21:17:41,812 INFO L226 Difference]: Without dead ends: 662 [2019-10-13 21:17:41,821 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:17:41,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2019-10-13 21:17:41,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 662. [2019-10-13 21:17:41,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 662 states. [2019-10-13 21:17:41,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 896 transitions. [2019-10-13 21:17:41,956 INFO L78 Accepts]: Start accepts. Automaton has 662 states and 896 transitions. Word has length 198 [2019-10-13 21:17:41,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:41,959 INFO L462 AbstractCegarLoop]: Abstraction has 662 states and 896 transitions. [2019-10-13 21:17:41,959 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 21:17:41,959 INFO L276 IsEmpty]: Start isEmpty. Operand 662 states and 896 transitions. [2019-10-13 21:17:41,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2019-10-13 21:17:41,971 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:41,972 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] [2019-10-13 21:17:41,975 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:41,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:41,976 INFO L82 PathProgramCache]: Analyzing trace with hash 1780281315, now seen corresponding path program 1 times [2019-10-13 21:17:41,977 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:41,977 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302496391] [2019-10-13 21:17:41,977 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:41,977 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:41,978 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:42,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:42,346 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-13 21:17:42,347 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302496391] [2019-10-13 21:17:42,347 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:42,347 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:17:42,348 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045046991] [2019-10-13 21:17:42,356 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:17:42,357 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:42,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:17:42,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:42,361 INFO L87 Difference]: Start difference. First operand 662 states and 896 transitions. Second operand 3 states. [2019-10-13 21:17:42,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:42,488 INFO L93 Difference]: Finished difference Result 1040 states and 1386 transitions. [2019-10-13 21:17:42,488 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:17:42,488 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 199 [2019-10-13 21:17:42,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:42,498 INFO L225 Difference]: With dead ends: 1040 [2019-10-13 21:17:42,498 INFO L226 Difference]: Without dead ends: 665 [2019-10-13 21:17:42,501 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:42,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2019-10-13 21:17:42,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 664. [2019-10-13 21:17:42,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 664 states. [2019-10-13 21:17:42,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 664 states to 664 states and 898 transitions. [2019-10-13 21:17:42,574 INFO L78 Accepts]: Start accepts. Automaton has 664 states and 898 transitions. Word has length 199 [2019-10-13 21:17:42,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:42,575 INFO L462 AbstractCegarLoop]: Abstraction has 664 states and 898 transitions. [2019-10-13 21:17:42,575 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:17:42,575 INFO L276 IsEmpty]: Start isEmpty. Operand 664 states and 898 transitions. [2019-10-13 21:17:42,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2019-10-13 21:17:42,582 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:42,582 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:42,583 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:42,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:42,583 INFO L82 PathProgramCache]: Analyzing trace with hash 1355702484, now seen corresponding path program 1 times [2019-10-13 21:17:42,584 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:42,584 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434824443] [2019-10-13 21:17:42,584 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:42,584 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:42,584 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:42,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:42,798 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-13 21:17:42,799 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434824443] [2019-10-13 21:17:42,799 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:42,800 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:17:42,800 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455479292] [2019-10-13 21:17:42,801 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:17:42,803 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:42,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:17:42,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:42,804 INFO L87 Difference]: Start difference. First operand 664 states and 898 transitions. Second operand 3 states. [2019-10-13 21:17:42,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:42,863 INFO L93 Difference]: Finished difference Result 1308 states and 1800 transitions. [2019-10-13 21:17:42,864 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:17:42,864 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 211 [2019-10-13 21:17:42,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:42,873 INFO L225 Difference]: With dead ends: 1308 [2019-10-13 21:17:42,875 INFO L226 Difference]: Without dead ends: 709 [2019-10-13 21:17:42,878 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:42,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 709 states. [2019-10-13 21:17:42,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 709 to 708. [2019-10-13 21:17:42,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 708 states. [2019-10-13 21:17:42,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 973 transitions. [2019-10-13 21:17:42,925 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 973 transitions. Word has length 211 [2019-10-13 21:17:42,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:42,926 INFO L462 AbstractCegarLoop]: Abstraction has 708 states and 973 transitions. [2019-10-13 21:17:42,926 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:17:42,926 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 973 transitions. [2019-10-13 21:17:42,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2019-10-13 21:17:42,931 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:42,932 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:42,932 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:42,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:42,933 INFO L82 PathProgramCache]: Analyzing trace with hash -211848516, now seen corresponding path program 1 times [2019-10-13 21:17:42,933 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:42,933 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547682507] [2019-10-13 21:17:42,934 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:42,934 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:42,934 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:43,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:43,227 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-13 21:17:43,227 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547682507] [2019-10-13 21:17:43,228 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:43,228 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:17:43,228 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639306101] [2019-10-13 21:17:43,229 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:17:43,230 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:43,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:17:43,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:43,231 INFO L87 Difference]: Start difference. First operand 708 states and 973 transitions. Second operand 3 states. [2019-10-13 21:17:43,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:43,284 INFO L93 Difference]: Finished difference Result 1437 states and 2020 transitions. [2019-10-13 21:17:43,285 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:17:43,285 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 212 [2019-10-13 21:17:43,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:43,293 INFO L225 Difference]: With dead ends: 1437 [2019-10-13 21:17:43,293 INFO L226 Difference]: Without dead ends: 794 [2019-10-13 21:17:43,296 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:43,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 794 states. [2019-10-13 21:17:43,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 794 to 793. [2019-10-13 21:17:43,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 793 states. [2019-10-13 21:17:43,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 793 states to 793 states and 1117 transitions. [2019-10-13 21:17:43,342 INFO L78 Accepts]: Start accepts. Automaton has 793 states and 1117 transitions. Word has length 212 [2019-10-13 21:17:43,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:43,343 INFO L462 AbstractCegarLoop]: Abstraction has 793 states and 1117 transitions. [2019-10-13 21:17:43,343 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:17:43,343 INFO L276 IsEmpty]: Start isEmpty. Operand 793 states and 1117 transitions. [2019-10-13 21:17:43,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2019-10-13 21:17:43,348 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:43,348 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] [2019-10-13 21:17:43,349 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:43,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:43,349 INFO L82 PathProgramCache]: Analyzing trace with hash 945796238, now seen corresponding path program 1 times [2019-10-13 21:17:43,350 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:43,351 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775412276] [2019-10-13 21:17:43,351 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:43,351 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:43,352 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:43,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:43,813 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:17:43,814 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775412276] [2019-10-13 21:17:43,814 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:43,815 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-13 21:17:43,815 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274816562] [2019-10-13 21:17:43,816 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 21:17:43,816 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:43,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 21:17:43,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2019-10-13 21:17:43,817 INFO L87 Difference]: Start difference. First operand 793 states and 1117 transitions. Second operand 11 states. [2019-10-13 21:17:52,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:52,001 INFO L93 Difference]: Finished difference Result 3998 states and 5634 transitions. [2019-10-13 21:17:52,001 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2019-10-13 21:17:52,002 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 215 [2019-10-13 21:17:52,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:52,027 INFO L225 Difference]: With dead ends: 3998 [2019-10-13 21:17:52,028 INFO L226 Difference]: Without dead ends: 3636 [2019-10-13 21:17:52,033 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 281 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=209, Invalid=913, Unknown=0, NotChecked=0, Total=1122 [2019-10-13 21:17:52,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3636 states. [2019-10-13 21:17:52,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3636 to 3615. [2019-10-13 21:17:52,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3615 states. [2019-10-13 21:17:52,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3615 states to 3615 states and 4990 transitions. [2019-10-13 21:17:52,244 INFO L78 Accepts]: Start accepts. Automaton has 3615 states and 4990 transitions. Word has length 215 [2019-10-13 21:17:52,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:52,246 INFO L462 AbstractCegarLoop]: Abstraction has 3615 states and 4990 transitions. [2019-10-13 21:17:52,246 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-13 21:17:52,246 INFO L276 IsEmpty]: Start isEmpty. Operand 3615 states and 4990 transitions. [2019-10-13 21:17:52,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2019-10-13 21:17:52,254 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:52,255 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] [2019-10-13 21:17:52,255 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:52,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:52,256 INFO L82 PathProgramCache]: Analyzing trace with hash 1962065818, now seen corresponding path program 1 times [2019-10-13 21:17:52,256 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:52,256 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078032657] [2019-10-13 21:17:52,257 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:52,257 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:52,257 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:52,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:53,047 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:17:53,048 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078032657] [2019-10-13 21:17:53,048 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:53,048 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2019-10-13 21:17:53,048 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711488845] [2019-10-13 21:17:53,049 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-10-13 21:17:53,050 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:53,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-10-13 21:17:53,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=343, Unknown=0, NotChecked=0, Total=380 [2019-10-13 21:17:53,050 INFO L87 Difference]: Start difference. First operand 3615 states and 4990 transitions. Second operand 20 states. [2019-10-13 21:17:53,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:53,777 INFO L93 Difference]: Finished difference Result 6763 states and 9435 transitions. [2019-10-13 21:17:53,778 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-10-13 21:17:53,778 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 216 [2019-10-13 21:17:53,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:53,808 INFO L225 Difference]: With dead ends: 6763 [2019-10-13 21:17:53,808 INFO L226 Difference]: Without dead ends: 3561 [2019-10-13 21:17:53,823 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2019-10-13 21:17:53,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3561 states. [2019-10-13 21:17:53,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3561 to 3559. [2019-10-13 21:17:53,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3559 states. [2019-10-13 21:17:54,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3559 states to 3559 states and 4906 transitions. [2019-10-13 21:17:54,014 INFO L78 Accepts]: Start accepts. Automaton has 3559 states and 4906 transitions. Word has length 216 [2019-10-13 21:17:54,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:54,016 INFO L462 AbstractCegarLoop]: Abstraction has 3559 states and 4906 transitions. [2019-10-13 21:17:54,017 INFO L463 AbstractCegarLoop]: Interpolant automaton has 20 states. [2019-10-13 21:17:54,017 INFO L276 IsEmpty]: Start isEmpty. Operand 3559 states and 4906 transitions. [2019-10-13 21:17:54,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2019-10-13 21:17:54,026 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:54,027 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:54,027 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:54,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:54,028 INFO L82 PathProgramCache]: Analyzing trace with hash 652440013, now seen corresponding path program 1 times [2019-10-13 21:17:54,028 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:54,028 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686173738] [2019-10-13 21:17:54,029 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:54,029 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:54,029 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:54,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:54,405 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:17:54,406 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686173738] [2019-10-13 21:17:54,406 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:54,407 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 21:17:54,407 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567356325] [2019-10-13 21:17:54,409 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 21:17:54,409 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:54,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 21:17:54,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 21:17:54,410 INFO L87 Difference]: Start difference. First operand 3559 states and 4906 transitions. Second operand 6 states. [2019-10-13 21:17:55,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:55,481 INFO L93 Difference]: Finished difference Result 10284 states and 14335 transitions. [2019-10-13 21:17:55,481 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 21:17:55,482 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 225 [2019-10-13 21:17:55,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:55,532 INFO L225 Difference]: With dead ends: 10284 [2019-10-13 21:17:55,532 INFO L226 Difference]: Without dead ends: 7205 [2019-10-13 21:17:55,548 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-13 21:17:55,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7205 states. [2019-10-13 21:17:55,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7205 to 7134. [2019-10-13 21:17:55,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7134 states. [2019-10-13 21:17:55,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7134 states to 7134 states and 9944 transitions. [2019-10-13 21:17:55,974 INFO L78 Accepts]: Start accepts. Automaton has 7134 states and 9944 transitions. Word has length 225 [2019-10-13 21:17:55,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:55,975 INFO L462 AbstractCegarLoop]: Abstraction has 7134 states and 9944 transitions. [2019-10-13 21:17:55,975 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 21:17:55,975 INFO L276 IsEmpty]: Start isEmpty. Operand 7134 states and 9944 transitions. [2019-10-13 21:17:55,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2019-10-13 21:17:55,988 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:55,988 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:55,989 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:55,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:55,989 INFO L82 PathProgramCache]: Analyzing trace with hash 1875015399, now seen corresponding path program 1 times [2019-10-13 21:17:55,990 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:55,990 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675309602] [2019-10-13 21:17:55,990 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:55,991 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:55,991 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:56,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:56,335 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:17:56,335 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675309602] [2019-10-13 21:17:56,336 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:56,336 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 21:17:56,336 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016849670] [2019-10-13 21:17:56,337 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 21:17:56,337 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:56,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 21:17:56,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 21:17:56,338 INFO L87 Difference]: Start difference. First operand 7134 states and 9944 transitions. Second operand 5 states. [2019-10-13 21:17:58,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:58,746 INFO L93 Difference]: Finished difference Result 26811 states and 38225 transitions. [2019-10-13 21:17:58,746 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 21:17:58,746 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 226 [2019-10-13 21:17:58,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:59,025 INFO L225 Difference]: With dead ends: 26811 [2019-10-13 21:17:59,026 INFO L226 Difference]: Without dead ends: 20570 [2019-10-13 21:17:59,064 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-13 21:17:59,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20570 states. [2019-10-13 21:17:59,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20570 to 20474. [2019-10-13 21:17:59,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20474 states. [2019-10-13 21:18:00,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20474 states to 20474 states and 28979 transitions. [2019-10-13 21:18:00,020 INFO L78 Accepts]: Start accepts. Automaton has 20474 states and 28979 transitions. Word has length 226 [2019-10-13 21:18:00,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:00,021 INFO L462 AbstractCegarLoop]: Abstraction has 20474 states and 28979 transitions. [2019-10-13 21:18:00,021 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 21:18:00,022 INFO L276 IsEmpty]: Start isEmpty. Operand 20474 states and 28979 transitions. [2019-10-13 21:18:00,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2019-10-13 21:18:00,042 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:00,043 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, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:00,043 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:00,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:00,044 INFO L82 PathProgramCache]: Analyzing trace with hash 1288239280, now seen corresponding path program 1 times [2019-10-13 21:18:00,044 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:00,044 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194181645] [2019-10-13 21:18:00,044 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:00,044 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:00,045 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:00,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:01,073 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 21:18:01,074 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194181645] [2019-10-13 21:18:01,075 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:01,075 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-10-13 21:18:01,076 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114126819] [2019-10-13 21:18:01,077 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-13 21:18:01,077 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:01,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-13 21:18:01,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2019-10-13 21:18:01,078 INFO L87 Difference]: Start difference. First operand 20474 states and 28979 transitions. Second operand 13 states. [2019-10-13 21:18:02,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:02,153 INFO L93 Difference]: Finished difference Result 39131 states and 55106 transitions. [2019-10-13 21:18:02,153 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-13 21:18:02,153 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 226 [2019-10-13 21:18:02,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:02,270 INFO L225 Difference]: With dead ends: 39131 [2019-10-13 21:18:02,270 INFO L226 Difference]: Without dead ends: 20398 [2019-10-13 21:18:02,358 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=433, Unknown=0, NotChecked=0, Total=506 [2019-10-13 21:18:02,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20398 states. [2019-10-13 21:18:03,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20398 to 20346. [2019-10-13 21:18:03,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20346 states. [2019-10-13 21:18:03,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20346 states to 20346 states and 28588 transitions. [2019-10-13 21:18:03,274 INFO L78 Accepts]: Start accepts. Automaton has 20346 states and 28588 transitions. Word has length 226 [2019-10-13 21:18:03,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:03,275 INFO L462 AbstractCegarLoop]: Abstraction has 20346 states and 28588 transitions. [2019-10-13 21:18:03,275 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-10-13 21:18:03,275 INFO L276 IsEmpty]: Start isEmpty. Operand 20346 states and 28588 transitions. [2019-10-13 21:18:03,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2019-10-13 21:18:03,290 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:03,291 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:03,291 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:03,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:03,292 INFO L82 PathProgramCache]: Analyzing trace with hash -410017553, now seen corresponding path program 1 times [2019-10-13 21:18:03,292 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:03,292 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790953995] [2019-10-13 21:18:03,292 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:03,292 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:03,293 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:03,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:03,457 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-13 21:18:03,457 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790953995] [2019-10-13 21:18:03,457 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:03,458 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:18:03,458 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533598422] [2019-10-13 21:18:03,459 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:18:03,459 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:03,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:18:03,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:18:03,460 INFO L87 Difference]: Start difference. First operand 20346 states and 28588 transitions. Second operand 3 states. [2019-10-13 21:18:04,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:04,023 INFO L93 Difference]: Finished difference Result 41287 states and 58317 transitions. [2019-10-13 21:18:04,023 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:18:04,023 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 247 [2019-10-13 21:18:04,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:04,117 INFO L225 Difference]: With dead ends: 41287 [2019-10-13 21:18:04,117 INFO L226 Difference]: Without dead ends: 21006 [2019-10-13 21:18:04,169 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 21:18:04,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21006 states. [2019-10-13 21:18:04,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21006 to 21002. [2019-10-13 21:18:04,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21002 states. [2019-10-13 21:18:04,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21002 states to 21002 states and 29782 transitions. [2019-10-13 21:18:04,957 INFO L78 Accepts]: Start accepts. Automaton has 21002 states and 29782 transitions. Word has length 247 [2019-10-13 21:18:04,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:04,958 INFO L462 AbstractCegarLoop]: Abstraction has 21002 states and 29782 transitions. [2019-10-13 21:18:04,958 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:18:04,958 INFO L276 IsEmpty]: Start isEmpty. Operand 21002 states and 29782 transitions. [2019-10-13 21:18:04,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2019-10-13 21:18:04,983 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:04,984 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:04,984 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:04,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:04,985 INFO L82 PathProgramCache]: Analyzing trace with hash 462111639, now seen corresponding path program 1 times [2019-10-13 21:18:04,985 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:04,985 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405680495] [2019-10-13 21:18:04,985 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:04,985 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:04,986 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:05,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:05,417 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-13 21:18:05,418 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405680495] [2019-10-13 21:18:05,418 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:05,418 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 21:18:05,419 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839976900] [2019-10-13 21:18:05,419 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 21:18:05,419 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:05,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 21:18:05,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-13 21:18:05,420 INFO L87 Difference]: Start difference. First operand 21002 states and 29782 transitions. Second operand 8 states.