java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/product-lines/email_spec7_product34.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 21:17:53,508 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:17:53,510 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:17:53,523 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:17:53,523 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:17:53,524 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:17:53,525 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:17:53,527 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:17:53,529 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:17:53,530 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:17:53,531 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:17:53,535 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:17:53,536 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:17:53,537 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:17:53,538 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:17:53,540 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:17:53,541 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:17:53,542 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:17:53,546 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:17:53,547 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:17:53,551 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:17:53,553 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:17:53,556 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:17:53,557 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:17:53,561 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 21:17:53,561 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 21:17:53,561 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 21:17:53,563 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 21:17:53,565 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 21:17:53,567 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 21:17:53,567 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 21:17:53,568 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 21:17:53,568 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 21:17:53,569 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 21:17:53,573 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 21:17:53,573 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 21:17:53,574 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 21:17:53,574 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 21:17:53,574 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:17:53,576 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:17:53,578 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:17:53,578 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 21:17:53,597 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:17:53,597 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:17:53,599 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:17:53,600 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:17:53,600 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:17:53,600 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:17:53,600 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:17:53,601 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:17:53,601 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:17:53,601 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:17:53,602 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:17:53,602 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:17:53,602 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:17:53,603 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:17:53,603 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:17:53,603 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:17:53,603 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:17:53,604 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:17:53,604 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:17:53,604 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:17:53,604 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:17:53,604 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:17:53,604 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:17:53,605 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:17:53,605 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:17:53,605 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:17:53,605 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:17:53,605 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:17:53,606 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 21:17:53,945 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:17:53,959 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:17:53,962 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:17:53,964 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:17:53,964 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:17:53,965 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec7_product34.cil.c [2019-10-13 21:17:54,029 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8aa88497/c647e83792b54263aa5093ffc57d0c25/FLAG34effa35a [2019-10-13 21:17:54,651 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:17:54,654 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec7_product34.cil.c [2019-10-13 21:17:54,689 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8aa88497/c647e83792b54263aa5093ffc57d0c25/FLAG34effa35a [2019-10-13 21:17:54,904 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8aa88497/c647e83792b54263aa5093ffc57d0c25 [2019-10-13 21:17:54,915 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:17:54,919 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:17:54,920 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:17:54,920 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:17:54,924 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:17:54,925 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:17:54" (1/1) ... [2019-10-13 21:17:54,928 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@107df370 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:54, skipping insertion in model container [2019-10-13 21:17:54,929 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:17:54" (1/1) ... [2019-10-13 21:17:54,937 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:17:55,000 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:17:55,819 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:17:55,836 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:17:55,959 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:17:56,058 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:17:56,059 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:56 WrapperNode [2019-10-13 21:17:56,059 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:17:56,060 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:17:56,060 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:17:56,061 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:17:56,077 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:56" (1/1) ... [2019-10-13 21:17:56,077 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:56" (1/1) ... [2019-10-13 21:17:56,111 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:56" (1/1) ... [2019-10-13 21:17:56,111 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:56" (1/1) ... [2019-10-13 21:17:56,198 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:56" (1/1) ... [2019-10-13 21:17:56,221 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:56" (1/1) ... [2019-10-13 21:17:56,239 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:56" (1/1) ... [2019-10-13 21:17:56,269 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:17:56,270 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:17:56,270 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:17:56,270 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:17:56,272 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:56" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:17:56,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:17:56,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:17:56,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 21:17:56,365 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 21:17:56,365 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 21:17:56,366 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 21:17:56,366 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 21:17:56,366 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 21:17:56,367 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 21:17:56,367 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 21:17:56,368 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 21:17:56,368 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 21:17:56,368 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:17:56,369 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 21:17:56,369 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 21:17:56,369 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 21:17:56,371 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 21:17:56,371 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 21:17:56,371 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 21:17:56,372 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 21:17:56,372 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 21:17:56,372 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 21:17:56,372 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-13 21:17:56,373 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-13 21:17:56,373 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 21:17:56,373 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-13 21:17:56,373 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-13 21:17:56,373 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 21:17:56,373 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 21:17:56,373 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 21:17:56,374 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 21:17:56,374 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 21:17:56,374 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptVerify_spec__1 [2019-10-13 21:17:56,374 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 21:17:56,374 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 21:17:56,374 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 21:17:56,374 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 21:17:56,375 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 21:17:56,375 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 21:17:56,375 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 21:17:56,375 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 21:17:56,375 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 21:17:56,375 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 21:17:56,375 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 21:17:56,376 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 21:17:56,376 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 21:17:56,376 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 21:17:56,376 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 21:17:56,376 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 21:17:56,376 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 21:17:56,376 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 21:17:56,377 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 21:17:56,377 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 21:17:56,377 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 21:17:56,377 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 21:17:56,377 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 21:17:56,377 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 21:17:56,377 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 21:17:56,378 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 21:17:56,378 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 21:17:56,378 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 21:17:56,378 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 21:17:56,379 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 21:17:56,379 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 21:17:56,379 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 21:17:56,379 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 21:17:56,380 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 21:17:56,380 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 21:17:56,380 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 21:17:56,380 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 21:17:56,380 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 21:17:56,380 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 21:17:56,380 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 21:17:56,381 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 21:17:56,381 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 21:17:56,381 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 21:17:56,382 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 21:17:56,382 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 21:17:56,382 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 21:17:56,382 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 21:17:56,383 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 21:17:56,383 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 21:17:56,383 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 21:17:56,383 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 21:17:56,384 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 21:17:56,384 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 21:17:56,384 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 21:17:56,385 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 21:17:56,385 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 21:17:56,385 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 21:17:56,385 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 21:17:56,386 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 21:17:56,386 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 21:17:56,386 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 21:17:56,386 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 21:17:56,386 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 21:17:56,386 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 21:17:56,386 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-13 21:17:56,387 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-13 21:17:56,387 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 21:17:56,387 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 21:17:56,387 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-13 21:17:56,387 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-13 21:17:56,387 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-13 21:17:56,387 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 21:17:56,388 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 21:17:56,388 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 21:17:56,388 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 21:17:56,388 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 21:17:56,388 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 21:17:56,388 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 21:17:56,388 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 21:17:56,389 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 21:17:56,389 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-13 21:17:56,389 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-13 21:17:56,389 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-13 21:17:56,389 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-13 21:17:56,390 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 21:17:56,390 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:17:56,390 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 21:17:56,390 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 21:17:56,391 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 21:17:56,391 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 21:17:56,391 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 21:17:56,392 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 21:17:56,392 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 21:17:56,392 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 21:17:56,392 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 21:17:56,393 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 21:17:56,393 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 21:17:56,393 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 21:17:56,393 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 21:17:56,393 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 21:17:56,393 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 21:17:56,394 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 21:17:56,394 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 21:17:56,395 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 21:17:56,398 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 21:17:56,398 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 21:17:56,398 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 21:17:56,399 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 21:17:56,399 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 21:17:56,399 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 21:17:56,400 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 21:17:56,407 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 21:17:56,408 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 21:17:56,408 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 21:17:56,408 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 21:17:56,408 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 21:17:56,408 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:17:56,408 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 21:17:56,409 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 21:17:56,409 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 21:17:56,409 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 21:17:56,409 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 21:17:56,409 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 21:17:56,409 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 21:17:56,409 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 21:17:56,409 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 21:17:56,410 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-13 21:17:56,410 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-13 21:17:56,410 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 21:17:56,410 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 21:17:56,410 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 21:17:56,410 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 21:17:56,411 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 21:17:56,411 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 21:17:56,411 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 21:17:56,411 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 21:17:56,411 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 21:17:56,411 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 21:17:56,412 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 21:17:56,412 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 21:17:56,412 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 21:17:56,412 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 21:17:56,412 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 21:17:56,412 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 21:17:56,413 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 21:17:56,413 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 21:17:56,413 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 21:17:56,413 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-13 21:17:56,413 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-13 21:17:56,413 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 21:17:56,414 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 21:17:56,414 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptVerify_spec__1 [2019-10-13 21:17:56,414 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 21:17:56,414 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 21:17:56,414 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 21:17:56,414 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 21:17:56,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 21:17:56,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 21:17:56,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 21:17:56,415 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 21:17:56,415 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 21:17:56,415 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 21:17:56,416 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 21:17:56,416 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 21:17:56,416 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 21:17:56,416 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 21:17:56,416 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 21:17:56,416 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 21:17:56,417 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 21:17:56,417 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 21:17:56,417 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 21:17:56,417 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 21:17:56,417 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 21:17:56,417 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 21:17:56,418 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 21:17:56,418 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 21:17:56,418 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 21:17:56,418 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 21:17:56,418 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 21:17:56,418 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 21:17:56,419 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 21:17:56,419 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 21:17:56,419 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 21:17:56,419 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 21:17:56,419 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 21:17:56,419 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 21:17:56,420 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 21:17:56,420 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 21:17:56,420 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 21:17:56,420 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 21:17:56,420 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 21:17:56,420 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 21:17:56,421 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 21:17:56,421 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 21:17:56,421 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 21:17:56,421 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 21:17:56,421 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 21:17:56,422 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 21:17:56,422 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 21:17:56,422 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 21:17:56,422 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 21:17:56,422 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 21:17:56,422 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 21:17:56,423 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 21:17:56,423 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 21:17:56,423 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-13 21:17:56,423 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-13 21:17:56,423 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-13 21:17:56,423 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-13 21:17:56,424 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 21:17:56,424 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-13 21:17:56,424 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-13 21:17:56,424 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-13 21:17:56,424 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-13 21:17:56,424 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-13 21:17:56,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:17:56,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 21:17:56,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:17:58,703 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:17:58,703 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 21:17:58,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:17:58 BoogieIcfgContainer [2019-10-13 21:17:58,706 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:17:58,707 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:17:58,707 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:17:58,713 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:17:58,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:17:54" (1/3) ... [2019-10-13 21:17:58,715 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11a80bd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:17:58, skipping insertion in model container [2019-10-13 21:17:58,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:56" (2/3) ... [2019-10-13 21:17:58,716 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11a80bd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:17:58, skipping insertion in model container [2019-10-13 21:17:58,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:17:58" (3/3) ... [2019-10-13 21:17:58,720 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec7_product34.cil.c [2019-10-13 21:17:58,731 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:17:58,741 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:17:58,754 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:17:58,786 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:17:58,786 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:17:58,787 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:17:58,787 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:17:58,787 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:17:58,787 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:17:58,787 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:17:58,787 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:17:58,821 INFO L276 IsEmpty]: Start isEmpty. Operand 647 states. [2019-10-13 21:17:58,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2019-10-13 21:17:58,845 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:58,846 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:58,848 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:58,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:58,855 INFO L82 PathProgramCache]: Analyzing trace with hash -2043582156, now seen corresponding path program 1 times [2019-10-13 21:17:58,867 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:58,867 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801140195] [2019-10-13 21:17:58,867 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:58,868 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:58,868 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:59,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:59,569 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 21:17:59,570 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801140195] [2019-10-13 21:17:59,571 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:59,571 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 21:17:59,571 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107184481] [2019-10-13 21:17:59,577 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 21:17:59,578 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:59,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 21:17:59,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:17:59,596 INFO L87 Difference]: Start difference. First operand 647 states. Second operand 2 states. [2019-10-13 21:17:59,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:59,711 INFO L93 Difference]: Finished difference Result 980 states and 1322 transitions. [2019-10-13 21:17:59,711 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 21:17:59,713 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 191 [2019-10-13 21:17:59,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:59,746 INFO L225 Difference]: With dead ends: 980 [2019-10-13 21:17:59,747 INFO L226 Difference]: Without dead ends: 618 [2019-10-13 21:17:59,759 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 21:17:59,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 618 states. [2019-10-13 21:17:59,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 618 to 618. [2019-10-13 21:17:59,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 618 states. [2019-10-13 21:17:59,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 618 states and 838 transitions. [2019-10-13 21:17:59,885 INFO L78 Accepts]: Start accepts. Automaton has 618 states and 838 transitions. Word has length 191 [2019-10-13 21:17:59,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:59,887 INFO L462 AbstractCegarLoop]: Abstraction has 618 states and 838 transitions. [2019-10-13 21:17:59,887 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 21:17:59,888 INFO L276 IsEmpty]: Start isEmpty. Operand 618 states and 838 transitions. [2019-10-13 21:17:59,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2019-10-13 21:17:59,894 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:59,894 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:59,894 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:59,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:59,895 INFO L82 PathProgramCache]: Analyzing trace with hash 1146061920, now seen corresponding path program 1 times [2019-10-13 21:17:59,895 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:59,895 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906069383] [2019-10-13 21:17:59,896 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:59,896 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:59,896 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:00,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:00,217 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-13 21:18:00,218 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906069383] [2019-10-13 21:18:00,218 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:00,219 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:18:00,219 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004665132] [2019-10-13 21:18:00,227 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:18:00,227 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:00,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:18:00,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:18:00,228 INFO L87 Difference]: Start difference. First operand 618 states and 838 transitions. Second operand 3 states. [2019-10-13 21:18:00,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:00,323 INFO L93 Difference]: Finished difference Result 963 states and 1284 transitions. [2019-10-13 21:18:00,323 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:18:00,324 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 192 [2019-10-13 21:18:00,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:00,332 INFO L225 Difference]: With dead ends: 963 [2019-10-13 21:18:00,332 INFO L226 Difference]: Without dead ends: 621 [2019-10-13 21:18:00,335 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:18:00,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states. [2019-10-13 21:18:00,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 620. [2019-10-13 21:18:00,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 620 states. [2019-10-13 21:18:00,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 620 states to 620 states and 840 transitions. [2019-10-13 21:18:00,377 INFO L78 Accepts]: Start accepts. Automaton has 620 states and 840 transitions. Word has length 192 [2019-10-13 21:18:00,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:00,378 INFO L462 AbstractCegarLoop]: Abstraction has 620 states and 840 transitions. [2019-10-13 21:18:00,378 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:18:00,378 INFO L276 IsEmpty]: Start isEmpty. Operand 620 states and 840 transitions. [2019-10-13 21:18:00,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2019-10-13 21:18:00,382 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:00,383 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:00,383 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:00,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:00,383 INFO L82 PathProgramCache]: Analyzing trace with hash -1233594516, now seen corresponding path program 1 times [2019-10-13 21:18:00,384 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:00,384 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248067612] [2019-10-13 21:18:00,384 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:00,384 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:00,384 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:00,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:00,620 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 21:18:00,621 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248067612] [2019-10-13 21:18:00,621 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:00,621 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:18:00,621 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058763119] [2019-10-13 21:18:00,622 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:18:00,623 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:00,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:18:00,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:18:00,623 INFO L87 Difference]: Start difference. First operand 620 states and 840 transitions. Second operand 3 states. [2019-10-13 21:18:00,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:00,659 INFO L93 Difference]: Finished difference Result 1218 states and 1681 transitions. [2019-10-13 21:18:00,660 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:18:00,660 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 198 [2019-10-13 21:18:00,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:00,665 INFO L225 Difference]: With dead ends: 1218 [2019-10-13 21:18:00,665 INFO L226 Difference]: Without dead ends: 663 [2019-10-13 21:18:00,667 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:18:00,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 663 states. [2019-10-13 21:18:00,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 663 to 662. [2019-10-13 21:18:00,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 662 states. [2019-10-13 21:18:00,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 912 transitions. [2019-10-13 21:18:00,696 INFO L78 Accepts]: Start accepts. Automaton has 662 states and 912 transitions. Word has length 198 [2019-10-13 21:18:00,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:00,697 INFO L462 AbstractCegarLoop]: Abstraction has 662 states and 912 transitions. [2019-10-13 21:18:00,697 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:18:00,697 INFO L276 IsEmpty]: Start isEmpty. Operand 662 states and 912 transitions. [2019-10-13 21:18:00,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2019-10-13 21:18:00,702 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:00,703 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:00,703 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:00,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:00,703 INFO L82 PathProgramCache]: Analyzing trace with hash -1272697570, now seen corresponding path program 1 times [2019-10-13 21:18:00,704 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:00,704 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015936957] [2019-10-13 21:18:00,704 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:00,704 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:00,704 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:00,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:01,422 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2019-10-13 21:18:01,423 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015936957] [2019-10-13 21:18:01,423 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:01,423 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-10-13 21:18:01,424 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236606159] [2019-10-13 21:18:01,425 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-10-13 21:18:01,426 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:01,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-10-13 21:18:01,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2019-10-13 21:18:01,428 INFO L87 Difference]: Start difference. First operand 662 states and 912 transitions. Second operand 19 states. [2019-10-13 21:18:07,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:07,391 INFO L93 Difference]: Finished difference Result 2344 states and 3255 transitions. [2019-10-13 21:18:07,397 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2019-10-13 21:18:07,398 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 199 [2019-10-13 21:18:07,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:07,411 INFO L225 Difference]: With dead ends: 2344 [2019-10-13 21:18:07,412 INFO L226 Difference]: Without dead ends: 2015 [2019-10-13 21:18:07,415 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 708 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=287, Invalid=2683, Unknown=0, NotChecked=0, Total=2970 [2019-10-13 21:18:07,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2015 states. [2019-10-13 21:18:07,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2015 to 1978. [2019-10-13 21:18:07,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1978 states. [2019-10-13 21:18:07,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1978 states to 1978 states and 2751 transitions. [2019-10-13 21:18:07,550 INFO L78 Accepts]: Start accepts. Automaton has 1978 states and 2751 transitions. Word has length 199 [2019-10-13 21:18:07,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:07,552 INFO L462 AbstractCegarLoop]: Abstraction has 1978 states and 2751 transitions. [2019-10-13 21:18:07,552 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-10-13 21:18:07,553 INFO L276 IsEmpty]: Start isEmpty. Operand 1978 states and 2751 transitions. [2019-10-13 21:18:07,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2019-10-13 21:18:07,559 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:07,560 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:07,560 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:07,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:07,560 INFO L82 PathProgramCache]: Analyzing trace with hash -578893885, now seen corresponding path program 1 times [2019-10-13 21:18:07,561 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:07,561 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975188105] [2019-10-13 21:18:07,562 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:07,562 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:07,562 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:07,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:07,893 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:18:07,894 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975188105] [2019-10-13 21:18:07,894 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:07,895 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-10-13 21:18:07,895 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178198179] [2019-10-13 21:18:07,896 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-13 21:18:07,897 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:07,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-13 21:18:07,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2019-10-13 21:18:07,898 INFO L87 Difference]: Start difference. First operand 1978 states and 2751 transitions. Second operand 13 states. [2019-10-13 21:18:08,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:08,662 INFO L93 Difference]: Finished difference Result 3495 states and 4856 transitions. [2019-10-13 21:18:08,663 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-13 21:18:08,663 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 200 [2019-10-13 21:18:08,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:08,676 INFO L225 Difference]: With dead ends: 3495 [2019-10-13 21:18:08,676 INFO L226 Difference]: Without dead ends: 2112 [2019-10-13 21:18:08,681 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 21:18:08,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2112 states. [2019-10-13 21:18:08,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2112 to 2112. [2019-10-13 21:18:08,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2112 states. [2019-10-13 21:18:08,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2112 states to 2112 states and 2968 transitions. [2019-10-13 21:18:08,812 INFO L78 Accepts]: Start accepts. Automaton has 2112 states and 2968 transitions. Word has length 200 [2019-10-13 21:18:08,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:08,813 INFO L462 AbstractCegarLoop]: Abstraction has 2112 states and 2968 transitions. [2019-10-13 21:18:08,813 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-10-13 21:18:08,813 INFO L276 IsEmpty]: Start isEmpty. Operand 2112 states and 2968 transitions. [2019-10-13 21:18:08,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2019-10-13 21:18:08,820 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:08,821 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:08,821 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:08,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:08,821 INFO L82 PathProgramCache]: Analyzing trace with hash -1707911070, now seen corresponding path program 1 times [2019-10-13 21:18:08,822 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:08,822 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662464046] [2019-10-13 21:18:08,822 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:08,822 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:08,822 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:08,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:09,149 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2019-10-13 21:18:09,149 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662464046] [2019-10-13 21:18:09,150 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:09,150 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2019-10-13 21:18:09,150 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544007877] [2019-10-13 21:18:09,151 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-10-13 21:18:09,151 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:09,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-10-13 21:18:09,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2019-10-13 21:18:09,152 INFO L87 Difference]: Start difference. First operand 2112 states and 2968 transitions. Second operand 15 states. [2019-10-13 21:18:13,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:13,670 INFO L93 Difference]: Finished difference Result 3667 states and 5151 transitions. [2019-10-13 21:18:13,670 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2019-10-13 21:18:13,670 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 200 [2019-10-13 21:18:13,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:13,683 INFO L225 Difference]: With dead ends: 3667 [2019-10-13 21:18:13,683 INFO L226 Difference]: Without dead ends: 2230 [2019-10-13 21:18:13,689 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 513 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=229, Invalid=1933, Unknown=0, NotChecked=0, Total=2162 [2019-10-13 21:18:13,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2230 states. [2019-10-13 21:18:13,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2230 to 2193. [2019-10-13 21:18:13,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2193 states. [2019-10-13 21:18:13,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2193 states to 2193 states and 3108 transitions. [2019-10-13 21:18:13,800 INFO L78 Accepts]: Start accepts. Automaton has 2193 states and 3108 transitions. Word has length 200 [2019-10-13 21:18:13,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:13,800 INFO L462 AbstractCegarLoop]: Abstraction has 2193 states and 3108 transitions. [2019-10-13 21:18:13,801 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-10-13 21:18:13,801 INFO L276 IsEmpty]: Start isEmpty. Operand 2193 states and 3108 transitions. [2019-10-13 21:18:13,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2019-10-13 21:18:13,807 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:13,807 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:13,807 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:13,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:13,808 INFO L82 PathProgramCache]: Analyzing trace with hash -1247468478, now seen corresponding path program 1 times [2019-10-13 21:18:13,808 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:13,808 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126236741] [2019-10-13 21:18:13,809 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:13,809 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:13,809 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:13,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:13,966 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2019-10-13 21:18:13,966 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126236741] [2019-10-13 21:18:13,966 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:13,967 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 21:18:13,967 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538160561] [2019-10-13 21:18:13,967 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 21:18:13,968 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:13,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 21:18:13,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 21:18:13,968 INFO L87 Difference]: Start difference. First operand 2193 states and 3108 transitions. Second operand 5 states. [2019-10-13 21:18:14,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:14,094 INFO L93 Difference]: Finished difference Result 3332 states and 4650 transitions. [2019-10-13 21:18:14,094 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 21:18:14,095 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 203 [2019-10-13 21:18:14,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:14,110 INFO L225 Difference]: With dead ends: 3332 [2019-10-13 21:18:14,110 INFO L226 Difference]: Without dead ends: 1767 [2019-10-13 21:18:14,117 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-13 21:18:14,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1767 states. [2019-10-13 21:18:14,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1767 to 1767. [2019-10-13 21:18:14,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1767 states. [2019-10-13 21:18:14,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1767 states to 1767 states and 2502 transitions. [2019-10-13 21:18:14,228 INFO L78 Accepts]: Start accepts. Automaton has 1767 states and 2502 transitions. Word has length 203 [2019-10-13 21:18:14,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:14,229 INFO L462 AbstractCegarLoop]: Abstraction has 1767 states and 2502 transitions. [2019-10-13 21:18:14,229 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 21:18:14,229 INFO L276 IsEmpty]: Start isEmpty. Operand 1767 states and 2502 transitions. [2019-10-13 21:18:14,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2019-10-13 21:18:14,235 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:14,235 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:14,235 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:14,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:14,236 INFO L82 PathProgramCache]: Analyzing trace with hash -430417368, now seen corresponding path program 1 times [2019-10-13 21:18:14,236 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:14,236 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561987234] [2019-10-13 21:18:14,236 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:14,237 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:14,237 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:14,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:14,613 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2019-10-13 21:18:14,613 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561987234] [2019-10-13 21:18:14,613 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:14,613 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2019-10-13 21:18:14,613 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754833818] [2019-10-13 21:18:14,614 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-10-13 21:18:14,614 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:14,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-10-13 21:18:14,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2019-10-13 21:18:14,616 INFO L87 Difference]: Start difference. First operand 1767 states and 2502 transitions. Second operand 18 states. [2019-10-13 21:18:15,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:15,150 INFO L93 Difference]: Finished difference Result 2936 states and 4113 transitions. [2019-10-13 21:18:15,151 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-10-13 21:18:15,151 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 200 [2019-10-13 21:18:15,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:15,164 INFO L225 Difference]: With dead ends: 2936 [2019-10-13 21:18:15,165 INFO L226 Difference]: Without dead ends: 1799 [2019-10-13 21:18:15,170 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2019-10-13 21:18:15,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1799 states. [2019-10-13 21:18:15,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1799 to 1797. [2019-10-13 21:18:15,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1797 states. [2019-10-13 21:18:15,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1797 states to 1797 states and 2531 transitions. [2019-10-13 21:18:15,248 INFO L78 Accepts]: Start accepts. Automaton has 1797 states and 2531 transitions. Word has length 200 [2019-10-13 21:18:15,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:15,249 INFO L462 AbstractCegarLoop]: Abstraction has 1797 states and 2531 transitions. [2019-10-13 21:18:15,249 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-10-13 21:18:15,249 INFO L276 IsEmpty]: Start isEmpty. Operand 1797 states and 2531 transitions. [2019-10-13 21:18:15,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2019-10-13 21:18:15,254 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:15,255 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] [2019-10-13 21:18:15,255 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:15,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:15,256 INFO L82 PathProgramCache]: Analyzing trace with hash -1294591828, now seen corresponding path program 1 times [2019-10-13 21:18:15,256 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:15,256 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438825109] [2019-10-13 21:18:15,256 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:15,256 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:15,256 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:15,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:15,419 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:18:15,419 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438825109] [2019-10-13 21:18:15,419 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:15,419 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 21:18:15,420 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712984138] [2019-10-13 21:18:15,420 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 21:18:15,421 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:15,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 21:18:15,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 21:18:15,421 INFO L87 Difference]: Start difference. First operand 1797 states and 2531 transitions. Second operand 5 states. [2019-10-13 21:18:16,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:16,771 INFO L93 Difference]: Finished difference Result 4842 states and 6862 transitions. [2019-10-13 21:18:16,772 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 21:18:16,772 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 200 [2019-10-13 21:18:16,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:16,801 INFO L225 Difference]: With dead ends: 4842 [2019-10-13 21:18:16,802 INFO L226 Difference]: Without dead ends: 4045 [2019-10-13 21:18:16,806 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-13 21:18:16,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4045 states. [2019-10-13 21:18:16,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4045 to 4031. [2019-10-13 21:18:16,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4031 states. [2019-10-13 21:18:17,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4031 states to 4031 states and 5704 transitions. [2019-10-13 21:18:17,003 INFO L78 Accepts]: Start accepts. Automaton has 4031 states and 5704 transitions. Word has length 200 [2019-10-13 21:18:17,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:17,003 INFO L462 AbstractCegarLoop]: Abstraction has 4031 states and 5704 transitions. [2019-10-13 21:18:17,003 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 21:18:17,004 INFO L276 IsEmpty]: Start isEmpty. Operand 4031 states and 5704 transitions. [2019-10-13 21:18:17,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2019-10-13 21:18:17,012 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:17,012 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:17,013 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:17,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:17,014 INFO L82 PathProgramCache]: Analyzing trace with hash -1274254453, now seen corresponding path program 1 times [2019-10-13 21:18:17,014 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:17,014 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335793704] [2019-10-13 21:18:17,015 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:17,015 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:17,015 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:17,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:17,273 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:18:17,273 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335793704] [2019-10-13 21:18:17,274 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:17,274 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 21:18:17,274 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447950206] [2019-10-13 21:18:17,275 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 21:18:17,275 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:17,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 21:18:17,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 21:18:17,276 INFO L87 Difference]: Start difference. First operand 4031 states and 5704 transitions. Second operand 7 states. [2019-10-13 21:18:19,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:19,838 INFO L93 Difference]: Finished difference Result 13480 states and 20830 transitions. [2019-10-13 21:18:19,839 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-13 21:18:19,840 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 200 [2019-10-13 21:18:19,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:19,924 INFO L225 Difference]: With dead ends: 13480 [2019-10-13 21:18:19,925 INFO L226 Difference]: Without dead ends: 10373 [2019-10-13 21:18:19,950 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2019-10-13 21:18:19,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10373 states. [2019-10-13 21:18:20,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10373 to 10363. [2019-10-13 21:18:20,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10363 states. [2019-10-13 21:18:20,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10363 states to 10363 states and 15752 transitions. [2019-10-13 21:18:20,560 INFO L78 Accepts]: Start accepts. Automaton has 10363 states and 15752 transitions. Word has length 200 [2019-10-13 21:18:20,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:20,561 INFO L462 AbstractCegarLoop]: Abstraction has 10363 states and 15752 transitions. [2019-10-13 21:18:20,561 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 21:18:20,561 INFO L276 IsEmpty]: Start isEmpty. Operand 10363 states and 15752 transitions. [2019-10-13 21:18:20,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2019-10-13 21:18:20,569 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:20,569 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:20,569 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:20,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:20,570 INFO L82 PathProgramCache]: Analyzing trace with hash 1884885610, now seen corresponding path program 1 times [2019-10-13 21:18:20,570 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:20,570 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997556448] [2019-10-13 21:18:20,570 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:20,571 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:20,571 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:20,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:21,084 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 21:18:21,085 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997556448] [2019-10-13 21:18:21,085 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:21,085 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2019-10-13 21:18:21,085 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979744989] [2019-10-13 21:18:21,086 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2019-10-13 21:18:21,086 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:21,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2019-10-13 21:18:21,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=703, Unknown=0, NotChecked=0, Total=756 [2019-10-13 21:18:21,087 INFO L87 Difference]: Start difference. First operand 10363 states and 15752 transitions. Second operand 28 states. [2019-10-13 21:18:22,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:22,415 INFO L93 Difference]: Finished difference Result 20153 states and 31327 transitions. [2019-10-13 21:18:22,415 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2019-10-13 21:18:22,416 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 201 [2019-10-13 21:18:22,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:22,479 INFO L225 Difference]: With dead ends: 20153 [2019-10-13 21:18:22,479 INFO L226 Difference]: Without dead ends: 10714 [2019-10-13 21:18:22,537 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=101, Invalid=1459, Unknown=0, NotChecked=0, Total=1560 [2019-10-13 21:18:22,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10714 states. [2019-10-13 21:18:23,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10714 to 10689. [2019-10-13 21:18:23,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10689 states. [2019-10-13 21:18:23,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10689 states to 10689 states and 16211 transitions. [2019-10-13 21:18:23,062 INFO L78 Accepts]: Start accepts. Automaton has 10689 states and 16211 transitions. Word has length 201 [2019-10-13 21:18:23,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:23,063 INFO L462 AbstractCegarLoop]: Abstraction has 10689 states and 16211 transitions. [2019-10-13 21:18:23,063 INFO L463 AbstractCegarLoop]: Interpolant automaton has 28 states. [2019-10-13 21:18:23,063 INFO L276 IsEmpty]: Start isEmpty. Operand 10689 states and 16211 transitions. [2019-10-13 21:18:23,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2019-10-13 21:18:23,072 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:23,073 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:23,073 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:23,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:23,074 INFO L82 PathProgramCache]: Analyzing trace with hash -1510972251, now seen corresponding path program 1 times [2019-10-13 21:18:23,074 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:23,074 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847566956] [2019-10-13 21:18:23,074 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:23,074 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:23,075 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:23,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:23,457 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 21:18:23,458 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847566956] [2019-10-13 21:18:23,458 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:23,458 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-13 21:18:23,458 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758103206] [2019-10-13 21:18:23,459 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-13 21:18:23,459 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:23,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-13 21:18:23,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-13 21:18:23,460 INFO L87 Difference]: Start difference. First operand 10689 states and 16211 transitions. Second operand 10 states. [2019-10-13 21:18:23,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:23,706 INFO L93 Difference]: Finished difference Result 10788 states and 16397 transitions. [2019-10-13 21:18:23,707 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-13 21:18:23,707 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 205 [2019-10-13 21:18:23,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:23,768 INFO L225 Difference]: With dead ends: 10788 [2019-10-13 21:18:23,768 INFO L226 Difference]: Without dead ends: 10785 [2019-10-13 21:18:23,776 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-13 21:18:23,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10785 states. [2019-10-13 21:18:24,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10785 to 10785. [2019-10-13 21:18:24,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10785 states. [2019-10-13 21:18:24,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10785 states to 10785 states and 16363 transitions. [2019-10-13 21:18:24,240 INFO L78 Accepts]: Start accepts. Automaton has 10785 states and 16363 transitions. Word has length 205 [2019-10-13 21:18:24,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:24,240 INFO L462 AbstractCegarLoop]: Abstraction has 10785 states and 16363 transitions. [2019-10-13 21:18:24,241 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-13 21:18:24,241 INFO L276 IsEmpty]: Start isEmpty. Operand 10785 states and 16363 transitions. [2019-10-13 21:18:24,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2019-10-13 21:18:24,250 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:24,250 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:24,250 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:24,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:24,251 INFO L82 PathProgramCache]: Analyzing trace with hash -125913428, now seen corresponding path program 1 times [2019-10-13 21:18:24,251 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:24,251 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947334135] [2019-10-13 21:18:24,251 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:24,252 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:24,252 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:24,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:24,390 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:18:24,391 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947334135] [2019-10-13 21:18:24,391 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:24,391 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 21:18:24,391 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582469186] [2019-10-13 21:18:24,392 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 21:18:24,392 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:24,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 21:18:24,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 21:18:24,393 INFO L87 Difference]: Start difference. First operand 10785 states and 16363 transitions. Second operand 5 states. [2019-10-13 21:18:24,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:24,772 INFO L93 Difference]: Finished difference Result 20853 states and 32089 transitions. [2019-10-13 21:18:24,772 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 21:18:24,772 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 210 [2019-10-13 21:18:24,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:24,830 INFO L225 Difference]: With dead ends: 20853 [2019-10-13 21:18:24,830 INFO L226 Difference]: Without dead ends: 11040 [2019-10-13 21:18:24,865 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 21:18:24,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11040 states. [2019-10-13 21:18:25,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11040 to 10889. [2019-10-13 21:18:25,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10889 states. [2019-10-13 21:18:25,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10889 states to 10889 states and 16480 transitions. [2019-10-13 21:18:25,444 INFO L78 Accepts]: Start accepts. Automaton has 10889 states and 16480 transitions. Word has length 210 [2019-10-13 21:18:25,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:25,444 INFO L462 AbstractCegarLoop]: Abstraction has 10889 states and 16480 transitions. [2019-10-13 21:18:25,445 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 21:18:25,445 INFO L276 IsEmpty]: Start isEmpty. Operand 10889 states and 16480 transitions. [2019-10-13 21:18:25,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2019-10-13 21:18:25,457 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:25,458 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 21:18:25,458 INFO L410 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:25,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:25,459 INFO L82 PathProgramCache]: Analyzing trace with hash 1745370427, now seen corresponding path program 1 times [2019-10-13 21:18:25,459 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:25,460 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902485404] [2019-10-13 21:18:25,460 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:25,460 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:25,461 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:25,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:25,706 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 21:18:25,706 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902485404] [2019-10-13 21:18:25,707 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:25,707 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 21:18:25,707 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430041179] [2019-10-13 21:18:25,709 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 21:18:25,709 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:25,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 21:18:25,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 21:18:25,710 INFO L87 Difference]: Start difference. First operand 10889 states and 16480 transitions. Second operand 6 states.